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Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
/* Implements exception handling.
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
except.c: Fix comment typos. * except.c: Fix comment typos. * loop.c: Likewise. * varasm.c: Likewise. * doc/tm.texi: Fix a typo. From-SVN: r48488
2002-01-03 00:53:36 +00:00
1999, 2000, 2001, 2002 Free Software Foundation, Inc.
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
Contributed by Mike Stump <mrs@cygnus.com>.
Makefile.in, [...]: replace "GNU CC" with "GCC". * Makefile.in, alias.c, basic-block.h, bb-reorder.c, bitmap.c, bitmap.h, builtin-types.def, builtins.c, builtins.def, c-aux-info.c, c-common.c, c-common.def, c-common.h, c-convert.c, c-decl.c, c-dump.c, c-dump.h, c-errors.c, c-format.c, c-lang.c, c-lex.c, c-lex.h, c-parse.in, c-pragma.c, c-pragma.h, c-semantics.c, c-tree.h, c-typeck.c, caller-save.c, calls.c, collect2.c, collect2.h, combine.c, conditions.h, config.gcc, configure.frag, configure.in, conflict.c, convert.c, convert.h, cppspec.c, crtstuff.c, cse.c, cselib.c, cselib.h, dbxout.c, dbxout.h, defaults.h, dependence.c, df.c, df.h, diagnostic.c, diagnostic.h, doloop.c, dominance.c, dwarf.h, dwarf2.h, dwarf2asm.c, dwarf2asm.h, dwarf2out.c, dwarf2out.h, dwarfout.c, emit-rtl.c, errors.c, errors.h, except.c, except.h, exgettext, explow.c, expmed.c, expr.c, expr.h, final.c, fixproto, flags.h, flow.c, fold-const.c, fp-test.c, function.c, function.h, gbl-ctors.h, gcc.c, gcc.h, gcc.hlp, gccspec.c, gcov-io.h, gcse.c, genattr.c, genattrtab.c, gencheck.c, gencodes.c, genconfig.c, genemit.c, genextract.c, genflags.c, gengenrtl.c, genmultilib, genopinit.c, genoutput.c, genpeep.c, genrecog.c, gensupport.c, gensupport.h, ggc-callbacks.c, ggc-common.c, ggc-none.c, ggc-page.c, ggc-simple.c, ggc.h, global.c, graph.c, graph.h, gthr-aix.h, gthr-dce.h, gthr-posix.h, gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h, gthr-win32.h, gthr.h, haifa-sched.c, halfpic.c, halfpic.h, hard-reg-set.h, hwint.h, ifcvt.c, input.h, insn-addr.h, integrate.c, integrate.h, jump.c, lcm.c, libgcc2.c, libgcc2.h, lists.c, local-alloc.c, loop.c, loop.h, machmode.def, machmode.h, main.c, mbchar.c, mbchar.h, mips-tdump.c, mips-tfile.c, mklibgcc.in, mkmap-flat.awk, mkmap-symver.awk, optabs.c, output.h, params.c, params.def, params.h, predict.c, predict.def, predict.h, prefix.c, prefix.h, print-rtl.c, print-tree.c, profile.c, protoize.c, read-rtl.c, real.c, real.h, recog.c, recog.h, reg-stack.c, regclass.c, regmove.c, regrename.c, regs.h, reload.c, reload.h, reload1.c, reorg.c, resource.c, resource.h, rtl.c, rtl.def, rtl.h, rtlanal.c, sbitmap.c, sbitmap.h, sched-deps.c, sched-ebb.c, sched-int.h, sched-rgn.c, sched-vis.c, sdbout.c, sdbout.h, sibcall.c, simplify-rtx.c, ssa-ccp.c, ssa-dce.c, ssa.c, ssa.h, stmt.c, stor-layout.c, stringpool.c, system.h, timevar.c, timevar.def, timevar.h, tlink.c, toplev.c, toplev.h, tree.c, tree.def, tree.h, tsystem.h, unroll.c, unwind-dw2-fde.c, unwind-dw2-fde.h, unwind-dw2.c, unwind-pe.h, unwind-sjlj.c, unwind.h, unwind.inc, varasm.c, varray.c, varray.h, xcoffout.c, xcoffout.h: replace "GNU CC" with "GCC". From-SVN: r45105
2001-08-22 14:35:51 +00:00
This file is part of GCC.
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
Makefile.in, [...]: replace "GNU CC" with "GCC". * Makefile.in, alias.c, basic-block.h, bb-reorder.c, bitmap.c, bitmap.h, builtin-types.def, builtins.c, builtins.def, c-aux-info.c, c-common.c, c-common.def, c-common.h, c-convert.c, c-decl.c, c-dump.c, c-dump.h, c-errors.c, c-format.c, c-lang.c, c-lex.c, c-lex.h, c-parse.in, c-pragma.c, c-pragma.h, c-semantics.c, c-tree.h, c-typeck.c, caller-save.c, calls.c, collect2.c, collect2.h, combine.c, conditions.h, config.gcc, configure.frag, configure.in, conflict.c, convert.c, convert.h, cppspec.c, crtstuff.c, cse.c, cselib.c, cselib.h, dbxout.c, dbxout.h, defaults.h, dependence.c, df.c, df.h, diagnostic.c, diagnostic.h, doloop.c, dominance.c, dwarf.h, dwarf2.h, dwarf2asm.c, dwarf2asm.h, dwarf2out.c, dwarf2out.h, dwarfout.c, emit-rtl.c, errors.c, errors.h, except.c, except.h, exgettext, explow.c, expmed.c, expr.c, expr.h, final.c, fixproto, flags.h, flow.c, fold-const.c, fp-test.c, function.c, function.h, gbl-ctors.h, gcc.c, gcc.h, gcc.hlp, gccspec.c, gcov-io.h, gcse.c, genattr.c, genattrtab.c, gencheck.c, gencodes.c, genconfig.c, genemit.c, genextract.c, genflags.c, gengenrtl.c, genmultilib, genopinit.c, genoutput.c, genpeep.c, genrecog.c, gensupport.c, gensupport.h, ggc-callbacks.c, ggc-common.c, ggc-none.c, ggc-page.c, ggc-simple.c, ggc.h, global.c, graph.c, graph.h, gthr-aix.h, gthr-dce.h, gthr-posix.h, gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h, gthr-win32.h, gthr.h, haifa-sched.c, halfpic.c, halfpic.h, hard-reg-set.h, hwint.h, ifcvt.c, input.h, insn-addr.h, integrate.c, integrate.h, jump.c, lcm.c, libgcc2.c, libgcc2.h, lists.c, local-alloc.c, loop.c, loop.h, machmode.def, machmode.h, main.c, mbchar.c, mbchar.h, mips-tdump.c, mips-tfile.c, mklibgcc.in, mkmap-flat.awk, mkmap-symver.awk, optabs.c, output.h, params.c, params.def, params.h, predict.c, predict.def, predict.h, prefix.c, prefix.h, print-rtl.c, print-tree.c, profile.c, protoize.c, read-rtl.c, real.c, real.h, recog.c, recog.h, reg-stack.c, regclass.c, regmove.c, regrename.c, regs.h, reload.c, reload.h, reload1.c, reorg.c, resource.c, resource.h, rtl.c, rtl.def, rtl.h, rtlanal.c, sbitmap.c, sbitmap.h, sched-deps.c, sched-ebb.c, sched-int.h, sched-rgn.c, sched-vis.c, sdbout.c, sdbout.h, sibcall.c, simplify-rtx.c, ssa-ccp.c, ssa-dce.c, ssa.c, ssa.h, stmt.c, stor-layout.c, stringpool.c, system.h, timevar.c, timevar.def, timevar.h, tlink.c, toplev.c, toplev.h, tree.c, tree.def, tree.h, tsystem.h, unroll.c, unwind-dw2-fde.c, unwind-dw2-fde.h, unwind-dw2.c, unwind-pe.h, unwind-sjlj.c, unwind.h, unwind.inc, varasm.c, varray.c, varray.h, xcoffout.c, xcoffout.h: replace "GNU CC" with "GCC". From-SVN: r45105
2001-08-22 14:35:51 +00:00
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
Makefile.in, [...]: replace "GNU CC" with "GCC". * Makefile.in, alias.c, basic-block.h, bb-reorder.c, bitmap.c, bitmap.h, builtin-types.def, builtins.c, builtins.def, c-aux-info.c, c-common.c, c-common.def, c-common.h, c-convert.c, c-decl.c, c-dump.c, c-dump.h, c-errors.c, c-format.c, c-lang.c, c-lex.c, c-lex.h, c-parse.in, c-pragma.c, c-pragma.h, c-semantics.c, c-tree.h, c-typeck.c, caller-save.c, calls.c, collect2.c, collect2.h, combine.c, conditions.h, config.gcc, configure.frag, configure.in, conflict.c, convert.c, convert.h, cppspec.c, crtstuff.c, cse.c, cselib.c, cselib.h, dbxout.c, dbxout.h, defaults.h, dependence.c, df.c, df.h, diagnostic.c, diagnostic.h, doloop.c, dominance.c, dwarf.h, dwarf2.h, dwarf2asm.c, dwarf2asm.h, dwarf2out.c, dwarf2out.h, dwarfout.c, emit-rtl.c, errors.c, errors.h, except.c, except.h, exgettext, explow.c, expmed.c, expr.c, expr.h, final.c, fixproto, flags.h, flow.c, fold-const.c, fp-test.c, function.c, function.h, gbl-ctors.h, gcc.c, gcc.h, gcc.hlp, gccspec.c, gcov-io.h, gcse.c, genattr.c, genattrtab.c, gencheck.c, gencodes.c, genconfig.c, genemit.c, genextract.c, genflags.c, gengenrtl.c, genmultilib, genopinit.c, genoutput.c, genpeep.c, genrecog.c, gensupport.c, gensupport.h, ggc-callbacks.c, ggc-common.c, ggc-none.c, ggc-page.c, ggc-simple.c, ggc.h, global.c, graph.c, graph.h, gthr-aix.h, gthr-dce.h, gthr-posix.h, gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h, gthr-win32.h, gthr.h, haifa-sched.c, halfpic.c, halfpic.h, hard-reg-set.h, hwint.h, ifcvt.c, input.h, insn-addr.h, integrate.c, integrate.h, jump.c, lcm.c, libgcc2.c, libgcc2.h, lists.c, local-alloc.c, loop.c, loop.h, machmode.def, machmode.h, main.c, mbchar.c, mbchar.h, mips-tdump.c, mips-tfile.c, mklibgcc.in, mkmap-flat.awk, mkmap-symver.awk, optabs.c, output.h, params.c, params.def, params.h, predict.c, predict.def, predict.h, prefix.c, prefix.h, print-rtl.c, print-tree.c, profile.c, protoize.c, read-rtl.c, real.c, real.h, recog.c, recog.h, reg-stack.c, regclass.c, regmove.c, regrename.c, regs.h, reload.c, reload.h, reload1.c, reorg.c, resource.c, resource.h, rtl.c, rtl.def, rtl.h, rtlanal.c, sbitmap.c, sbitmap.h, sched-deps.c, sched-ebb.c, sched-int.h, sched-rgn.c, sched-vis.c, sdbout.c, sdbout.h, sibcall.c, simplify-rtx.c, ssa-ccp.c, ssa-dce.c, ssa.c, ssa.h, stmt.c, stor-layout.c, stringpool.c, system.h, timevar.c, timevar.def, timevar.h, tlink.c, toplev.c, toplev.h, tree.c, tree.def, tree.h, tsystem.h, unroll.c, unwind-dw2-fde.c, unwind-dw2-fde.h, unwind-dw2.c, unwind-pe.h, unwind-sjlj.c, unwind.h, unwind.inc, varasm.c, varray.c, varray.h, xcoffout.c, xcoffout.h: replace "GNU CC" with "GCC". From-SVN: r45105
2001-08-22 14:35:51 +00:00
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
You should have received a copy of the GNU General Public License
Makefile.in, [...]: replace "GNU CC" with "GCC". * Makefile.in, alias.c, basic-block.h, bb-reorder.c, bitmap.c, bitmap.h, builtin-types.def, builtins.c, builtins.def, c-aux-info.c, c-common.c, c-common.def, c-common.h, c-convert.c, c-decl.c, c-dump.c, c-dump.h, c-errors.c, c-format.c, c-lang.c, c-lex.c, c-lex.h, c-parse.in, c-pragma.c, c-pragma.h, c-semantics.c, c-tree.h, c-typeck.c, caller-save.c, calls.c, collect2.c, collect2.h, combine.c, conditions.h, config.gcc, configure.frag, configure.in, conflict.c, convert.c, convert.h, cppspec.c, crtstuff.c, cse.c, cselib.c, cselib.h, dbxout.c, dbxout.h, defaults.h, dependence.c, df.c, df.h, diagnostic.c, diagnostic.h, doloop.c, dominance.c, dwarf.h, dwarf2.h, dwarf2asm.c, dwarf2asm.h, dwarf2out.c, dwarf2out.h, dwarfout.c, emit-rtl.c, errors.c, errors.h, except.c, except.h, exgettext, explow.c, expmed.c, expr.c, expr.h, final.c, fixproto, flags.h, flow.c, fold-const.c, fp-test.c, function.c, function.h, gbl-ctors.h, gcc.c, gcc.h, gcc.hlp, gccspec.c, gcov-io.h, gcse.c, genattr.c, genattrtab.c, gencheck.c, gencodes.c, genconfig.c, genemit.c, genextract.c, genflags.c, gengenrtl.c, genmultilib, genopinit.c, genoutput.c, genpeep.c, genrecog.c, gensupport.c, gensupport.h, ggc-callbacks.c, ggc-common.c, ggc-none.c, ggc-page.c, ggc-simple.c, ggc.h, global.c, graph.c, graph.h, gthr-aix.h, gthr-dce.h, gthr-posix.h, gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h, gthr-win32.h, gthr.h, haifa-sched.c, halfpic.c, halfpic.h, hard-reg-set.h, hwint.h, ifcvt.c, input.h, insn-addr.h, integrate.c, integrate.h, jump.c, lcm.c, libgcc2.c, libgcc2.h, lists.c, local-alloc.c, loop.c, loop.h, machmode.def, machmode.h, main.c, mbchar.c, mbchar.h, mips-tdump.c, mips-tfile.c, mklibgcc.in, mkmap-flat.awk, mkmap-symver.awk, optabs.c, output.h, params.c, params.def, params.h, predict.c, predict.def, predict.h, prefix.c, prefix.h, print-rtl.c, print-tree.c, profile.c, protoize.c, read-rtl.c, real.c, real.h, recog.c, recog.h, reg-stack.c, regclass.c, regmove.c, regrename.c, regs.h, reload.c, reload.h, reload1.c, reorg.c, resource.c, resource.h, rtl.c, rtl.def, rtl.h, rtlanal.c, sbitmap.c, sbitmap.h, sched-deps.c, sched-ebb.c, sched-int.h, sched-rgn.c, sched-vis.c, sdbout.c, sdbout.h, sibcall.c, simplify-rtx.c, ssa-ccp.c, ssa-dce.c, ssa.c, ssa.h, stmt.c, stor-layout.c, stringpool.c, system.h, timevar.c, timevar.def, timevar.h, tlink.c, toplev.c, toplev.h, tree.c, tree.def, tree.h, tsystem.h, unroll.c, unwind-dw2-fde.c, unwind-dw2-fde.h, unwind-dw2.c, unwind-pe.h, unwind-sjlj.c, unwind.h, unwind.inc, varasm.c, varray.c, varray.h, xcoffout.c, xcoffout.h: replace "GNU CC" with "GCC". From-SVN: r45105
2001-08-22 14:35:51 +00:00
along with GCC; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
/* An exception is an event that can be signaled from within a
function. This event can then be "caught" or "trapped" by the
callers of this function. This potentially allows program flow to
Merge from gcc-2.8 From-SVN: r16987
1997-12-06 17:31:01 -07:00
be transferred to any arbitrary code associated with a function call
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
several levels up the stack.
The intended use for this mechanism is for signaling "exceptional
events" in an out-of-band fashion, hence its name. The C++ language
(and many other OO-styled or functional languages) practically
requires such a mechanism, as otherwise it becomes very difficult
or even impossible to signal failure conditions in complex
situations. The traditional C++ example is when an error occurs in
the process of constructing an object; without such a mechanism, it
is impossible to signal that the error occurs without adding global
state variables and error checks around every object construction.
The act of causing this event to occur is referred to as "throwing
an exception". (Alternate terms include "raising an exception" or
"signaling an exception".) The term "throw" is used because control
is returned to the callers of the function that is signaling the
exception, and thus there is the concept of "throwing" the
exception up the call stack.
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
[ Add updated documentation on how to use this. ] */
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
#include "config.h"
Major cutover to using system.h: * Makefile.in (alias.o, bitmap.o, c-aux-info.o, c-common.o, c-decl.o, c-iterate.o, c-lang.o, c-lex.o, c-pragma.o, c-typeck.o, caller-save.o, calls.o, collect2.o, combine.o, cse.o, dbxout.o, dwarf2out.o, dwarfout.o, emit-rtl.o, except.o, explow.o, expmed.o, expr.o, final.o, flow.o, function.o, getpwd.o, global.o, integrate.o, jump.o, local-alloc.o, loop.o, optabs.o, pexecute.o, prefix.o, print-rtl.o, print-tree.o, profile.o, real.o, recog.o, reg-stack.o, regclass.o, regmove.o, reload.o, reload1.o, reorg.o, rtl.o, rtlanal.o, sdbout.o, stmt.o, stor-layout.o, stupid.o, tlink.o, toplev.o, tree.o, unroll.o, varasm.o, xcoffout.o): Depend on system.h. * alias.c, bitmap.c, c-aux-info.c, c-common.c, c-decl.c, c-iterate.c, c-lang.c, c-lex.c, c-pragma.c, c-typeck.c, caller-save.c, calls.c, collect2.c, combine.c, cse.c, dbxout.c, dwarf2out.c, dwarfout.c, emit-rtl.c, except.c, explow.c, expmed.c, expr.c, final.c, flow.c, function.c, gcc.c, getpwd.c, global.c, integrate.c, jump.c, local-alloc.c, loop.c, optabs.c, pexecute.c, prefix.c, print-rtl.c, print-tree.c, profile.c, real.c, recog.c, reg-stack.c, regclass.c, regmove.c, reload.c, reload1.c, reorg.c, rtl.c, rtlanal.c, sched.c, sdbout.c, stmt.c, stor-layout.c, stupid.c, tlink.c, toplev.c, tree.c, unroll.c, varasm.c, xcoffout.c: Include system.h. Organize include ordering so that stdarg/varargs comes before other system headers. Remove spurious casts of functions assured of a prototype in system.h. From-SVN: r18726
1998-03-20 14:58:42 +00:00
#include "system.h"
Merge basic-improvements-branch to trunk From-SVN: r60174
2002-12-16 18:23:00 +00:00
#include "coretypes.h"
#include "tm.h"
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
#include "rtl.h"
#include "tree.h"
#include "flags.h"
#include "function.h"
#include "expr.h"
expr.h: Split out optab- and libfunc-related code to... * expr.h: Split out optab- and libfunc-related code to... * optabs.h, libfuncs.h: ... these new headers. * Makefile.in (CONFIG_H, EXPR_H): Take out insn-codes.h. (OPTABS_H): New. (various .o rules): Add $(OPTABS_H) and/or libfuncs.h to dependencies. * mkconfig.sh: Don't include insn-codes.h from config.h. * reload.h: Use #ifdef GCC_INSN_CODES_H to decide whether enum insn_code is available. Move reload_in_optab and reload_out_optab array declarations to optabs.h. * regmove.c (gen_add3_insn): Move to optabs.c, export from there, prototype in expr.h. * gencodes.c: Cleanup: zap global variables, don't use printf where puts will do, don't bother defining MAX_INSN_CODE which nothing uses, let CODE_FOR_nothing get its value implicitly. * genemit.c, genopinit.c: Include optabs.h in generated file. * genoutput.c: Include insn-codes.h in generated file. * builtins.c, caller-save.c, combine.c, doloop.c, explow.c, expmed.c, expr.c, function.c, ifcvt.c, loop.c, optabs.c, profile.c, reload1.c, simplify-rtx.c, stmt.c, unroll.c, config/alpha/alpha.c, config/arm/arm.c, config/c4x/c4x.c, config/clipper/clipper.c, config/i386/i386.c, config/ia64/ia64.c, config/mn10300/mn10300.c, config/pj/pj.c, config/sh/sh.c, config/sparc/sparc.c: Include optabs.h. * builtins.c, calls.c, dwarf2out.c, except.c, expr.c, function.c, optabs.c, stmt.c, config/c4x/c4x.c, config/clipper/clipper.c, config/m88k/m88k.c, config/sparc/sparc.c: Include libfuncs.h. * reload.c: Include expr.h and optabs.h before reload.h. * config/alpha/alpha.c: Include tree.h before reload.h. * config/pa/pa.c: Include expr.h, optabs.h, libfuncs.h, and reload.h in that order. * config/sparc/sparc.c: Include debug.h. * recog.c: Include insn-codes.h. cp: * Make-lang.in (cp/except.o): Add libfuncs.h to dependencies. * except.c: Include libfuncs.h. java: * Make-lang.in (java/decl.o): Update dependencies. * decl.c: Include libfuncs.h, don't include toplev.h. From-SVN: r44858
2001-08-13 15:56:51 +00:00
#include "libfuncs.h"
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
#include "insn-config.h"
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#include "except.h"
#include "integrate.h"
#include "hard-reg-set.h"
#include "basic-block.h"
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
#include "output.h"
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#include "dwarf2asm.h"
#include "dwarf2out.h"
defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * dwarf2asm.c (dw2_force_const_mem, dw2_output_indirect_constant_1, dw2_output_indirect_constants, dw2_asm_output_encoded_addr_rtx): New. * dwarf2asm.h (dw2_asm_output_encoded_addr_rtx): Prototype. (dw2_output_indirect_constants): Prototype. * dwarf2out.c (dwarf2out_begin_prologue): Generate current_function_func_begin_label if we'll need it for EH. Exit early for IA64_UNWIND_INFO. * except.c: Get DW_EH_PE_* defines from dwarf2.h. (eh_data_format_name): Update for indirect references. (output_function_exception_table): Care for IA64_UNWIND_INFO. Handle ASM_PREFERRED_EH_DATA_FORMAT. * except.h (MUST_USE_SJLJ_EXCEPTIONS): IA64_UNWIND_INFO needn't define HAVE_eh_return etc. * final.c (final_start_function): Always call dwarf2out_begin_prologue. (final_end_function): Don't call output_function_exception_table. * toplev.c (compile_file): Call dw2_output_indirect_constants. (rest_of_compilation): Invoke output_function_exception_table for ia64 before assemble_end_function. * tm.texi (ASM_PREFERRED_EH_DATA_FORMAT): Document. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Document. * unwind-dw2.c (_Unwind_GetTextRelBase, _Unwind_GetDataRelBase): New. * unwind.h: Declare them. * libgcc-std.ver: Export them. * unwind-pe.h: New file. * config/alpha/elf.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * config/ia64/fde-glibc.c: Use "struct unw_table_entry" instead of "fde". (find_fde_for_dso): Extract DT_PLTGOT. (_Unwind_FindTableEntry): Rename from __ia64_find_fde; return the segment and gp as well. * config/ia64/frame-ia64.c: Remove file. * config/ia64/frame-ia64.h: Remove file. * config/ia64/unwind-ia64.c: New file. * config/ia64/unwind-ia64.h: New file. * config/ia64/ia64.h (ASM_OUTPUT_EH_CHAR): Remove. (ASM_OUTPUT_EH_SHORT, ASM_OUTPUT_EH_INT): Remove. (ASM_OUTPUT_EH_DOUBLE_INT): Remove. (ASM_PREFERRED_EH_DATA_FORMAT): New. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New. (IA64_UNWIND_INFO): Re-enable. (HANDLER_SECTION): Remove. (EH_RETURN_DATA_REGNO): New. * config/ia64/ia64.md (exception_receiver): Remove. * config/ia64/t-glibc (LIB2ADDEH): Re-enable. * config/ia64/t-ia64 (LIB2ADDEH): Re-enable. From-SVN: r41981
2001-05-11 23:03:20 -07:00
#include "dwarf2.h"
toplev.h: New file. Wed May 6 06:35:38 1998 Robert Lipe <robertl@dgii.com> * toplev.h: New file. Protypes for functions in toplev.c. * tree.h, rtl.h: Deleted protos for functions in toplev.c. * c-common.c, c-convert.c, c-decl.c, c-iterate.c, c-lex.c, c-parse.in, c-parse.y, c-pragma.c, c-typeck.c, calls.c, convert.c, dwarf2out.c, except.c, expr.c, final.c, fold-const.c, function.c, hash.c, profile.c, real.c, reg-stack.c, regclass.c, reload.c, reload1.c, stmt.c, stor-layout.c, tlink.c, tree.c, varasm.c: include it. From-SVN: r19564
1998-05-06 04:54:01 +00:00
#include "toplev.h"
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#include "hashtab.h"
except.c: Include intl.h. � * except.c: Include intl.h. (expand_eh_return): Set current_function_cannot_inline. (save_eh_status, restore_eh_status): Twiddle eh_return_stub_label. * function.h (struct function): Add eh_return_stub_label. * flow.c (delete_unreachable_blocks): Don't merge across EH edges. * Makefile.in (except.o): Depend on intl.h. From-SVN: r27908
1999-07-01 17:52:55 -06:00
#include "intl.h"
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
#include "ggc.h"
calls.c: Include tm_p.h later, so everything we need is defined. * calls.c: Include tm_p.h later, so everything we need is defined. * expr.c: Likewise. * function.c: Likewise. * except.c: Include tm_p.h. * sparc.c: Likewise. (dwarf2out_cfi_label): Don't prototype. (check_return_regs, epilogue_renumber, ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists, ultra_find_type, ultra_build_types_avail, ultra_flush_pipeline, ultra_rescan_pipeline_state, set_extends, ultra_code_from_mask, ultra_schedule_insn): Add static prototype. (data_segment_operand, text_segment_operand): Call itself with the proper number of arguments. (sparc_flat_save_restore, sparc_v8plus_shift): Constify a char*. * sparc.h: Move all declarations to sparc-protos.h. (SELECT_RTX_SECTION): Pass a missing MODE argument to symbolic_operand. * sparc/sysv4.h (SELECT_RTX_SECTION): Likewise. * config/svr4.h (text_section, ctors_section, dtors_section): Add Prototypes. (ASM_OUTPUT_SECTION_NAME, UNIQUE_SECTION, ASM_FINISH_DECLARE_OBJECT, ASM_OUTPUT_LIMITED_STRING, ASM_OUTPUT_ASCII): Constify a char*. * sparc-protos.h: New file for sparc prototypes. cp: * expr.c: Include tm_p.h. From-SVN: r30122
1999-10-21 16:58:33 +00:00
#include "tm_p.h"
target.h (struct gcc_target): Add asm_out.exception_section, asm_out.eh_frame_section. * target.h (struct gcc_target): Add asm_out.exception_section, asm_out.eh_frame_section. * target-def.h (TARGET_ASM_EXCEPTION_SECTION): New macro. (TARGET_ASM_EH_FRAME_SECTION): New. (TARGET_INITIALIZER): Update. * output.h (default_exception_section): Declare. (default_eh_frame_section): Declare. * dwarf2out.c: Include target.h. (output_call_frame_info): Call target hook for eh frames. (default_eh_frame_section): New function. * except.c: Include target.h. (output_function_exception_table): Call target hook for exception section. * varasm.c (default_exception_section): Rename from exception_section, remove EXCEPTION_SECTION macro. * config/darwin.h (darwin_eh_frame_section): New function. (EXCEPTION_SECTION): Remove. (TARGET_ASM_EXCEPTION_SECTION): Define. * config/nextstep.h (EH_FRAME_SECTION_ASM_OP): Remove. (nextstep_exception_section): New function. (nextstep_eh_frame_section): New function. (TARGET_ASM_EXCEPTION_SECTION): Define. (TARGET_ASM_EH_FRAME_SECTION): Define. * config/pa/som.h (EXCEPTION_SECTION): Remove. (TARGET_ASM_EXCEPTION_SECTION): Define. * config/rs6000/sysv4.h, config/rs6000/xcoff.h (EXCEPTION_SECTION): Remove. (TARGET_ASM_EXCEPTION_SECTION): Define. * config/stormy16/stormy16.h: Remove comments referencing EXCEPTION_SECTION and EH_FRAME_SECTION_ASM_OP. * doc/tm.texi: Document TARGET_ASM_EXCEPTION_SECTION and TARGET_ASM_EH_FRAME_SECTION. From-SVN: r46409
2001-10-22 14:43:31 +00:00
#include "target.h"
Makefile.in (except.o): Update. * Makefile.in (except.o): Update. * except.c: Include langhooks.h. (init_eh): Use langhook. * langhooks-def.h (LANG_HOOKS_MAKE_TYPE, LANG_HOOKS_FOR_TYPES_INITIALIZER): New. (LANG_HOOKS_INITIALIZER): Update. * langhooks.h (lang_hooks_for_types): New. (struct lang_hooks): Add it. * tree.c (make_lang_type_fn, make_lang_type): Remove. * tree.h (make_lang_type_fn, make_lang_type): Remove. config: * alpha/alpha.c: Include langhooks.h. (alpha_build_va_list): Use langhook. * d30v/d30v.c: Include langhooks.h. (d30v_build_va_list): Use langhook. * i386/i386.c: Include langhooks.h. (ix86_build_va_list): Use langhook. * rs6000/rs6000.c (rs6000_build_va_list): Use langhook. * s390/s390.c: Include langhooks.h. (s390_build_va_list): Use langhook. * stormy16/stormy16.c: Include langhooks.h. (stormy16_build_va_list): Use langhook. cp: * cp-lang.c (LANG_HOOKS_MAKE_TYPE): Redefine. * cp-tree.h (cp_make_lang_type): Rename. * lex.c (cp_make_lang_type): Rename. (make_aggr_type): Update. * tree.c (init_tree): Don't set make_lang_type_fn. From-SVN: r51558
2002-03-29 08:43:22 +00:00
#include "langhooks.h"
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Provide defaults for stuff that may not be defined when using
sjlj exceptions. */
#ifndef EH_RETURN_DATA_REGNO
#define EH_RETURN_DATA_REGNO(N) INVALID_REGNUM
Remove flag_new_exceptions. From-SVN: r40908
2001-03-27 22:11:49 -08:00
#endif
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Nonzero means enable synchronous exceptions for non-call instructions. */
int flag_non_call_exceptions;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Protect cleanup actions with must-not-throw regions, with a call
to the given failure handler. */
except.h (protect_cleanup_actions): Remove it. * except.h (protect_cleanup_actions): Remove it. (lang_protect_cleanup_actions): Declare it. * except.c (protect_cleanup_actions): Remove it. (lang_protect_cleanup_actions): New variable. (init_eh): Don't make protect_cleanup_actions a GC root. (expand_eh_region_and_cleanup): Call lang_protect_cleanup_actions. (output_function_exception_table): Remove unused `align' variable. * varasm.c (assemble_external): Abort if we have not yet opened the assembly output file. * except.c (cp_protect_cleanup_actions): New function. (init_exception_processing): Don't set protect_cleanup_actions here. Do set lang_protect_cleanup_actions. From-SVN: r42218
2001-05-17 18:12:27 +00:00
tree (*lang_protect_cleanup_actions) PARAMS ((void));
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Return true if type A catches type B. */
int (*lang_eh_type_covers) PARAMS ((tree a, tree b));
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Map a type to a runtime object to match type. */
tree (*lang_eh_runtime_type) PARAMS ((tree));
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
/* A hash table of label to region number. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
struct ehl_map_entry GTY(())
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
{
rtx label;
struct eh_region *region;
};
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static int call_site_base;
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
static GTY ((param_is (union tree_node)))
htab_t type_to_runtime_map;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Describe the SjLj_Function_Context structure. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
static GTY(()) tree sjlj_fc_type_node;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static int sjlj_fc_call_site_ofs;
static int sjlj_fc_data_ofs;
static int sjlj_fc_personality_ofs;
static int sjlj_fc_lsda_ofs;
static int sjlj_fc_jbuf_ofs;
/* Describes one exception region. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
struct eh_region GTY(())
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
{
/* The immediately surrounding region. */
struct eh_region *outer;
Merge from gcc-2.8 From-SVN: r16987
1997-12-06 17:31:01 -07:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* The list of immediately contained regions. */
struct eh_region *inner;
struct eh_region *next_peer;
Merge from gcc-2.8 From-SVN: r16987
1997-12-06 17:31:01 -07:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* An identifier for this region. */
int region_number;
tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill. (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill. (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill. (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New. * c-decl.c (init_decl_processing): Update accordingly. * expr.c (expand_builtin): Likewise. * cp/decl.c (init_decl_processing): Likewise. * rtl.h (global_rtl): Add cfa entry. (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New. (LAST_VIRTUAL_REGISTER): Update. * emit-rtl.c (global_rtl): Add cfa entry. (init_emit): Initialize it. * function.c (cfa_offset): New. (instantiate_virtual_regs): Initialize it. (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx. (expand_function_end): Call expand_eh_return. * tm.texi (ARG_POINTER_CFA_OFFSET): New. * except.c (current_function_eh_stub_label): Kill. (current_function_eh_old_stub_label): Likwise; update all references. (expand_builtin_set_return_addr_reg): Kill. (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill. (expand_builtin_set_eh_regs): Kill. (eh_regs): Produce a third reg for the actual handler address. (eh_return_context, eh_return_stack_adjust): New. (eh_return_handler, eh_return_stub_label): New. (init_eh_for_function): Initialize them. (expand_builtin_eh_return, expand_eh_return): New. * except.h: Update prototypes. * flow.c (find_basic_blocks_1): Update references to the stub label. * function.h (struct function): Kill stub label elements. * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the register number is one that would be in the previous window. Provide a dummy definition for non-windowed targets. (get_reg_addr): New function. (get_reg, put_reg, copy_reg): Use it. (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa. * alpha.c (alpha_eh_epilogue_sp_ofs): New. (alpha_init_expanders): Initialize it. (alpha_expand_epilogue): Use it. * alpha.h: Declare it. * alpha.md (eh_epilogue): New. * m68h.h (ARG_POINTER_CFA_OFFSET): New. * sparc.h (ARG_POINTER_CFA_OFFSET): New. From-SVN: r22436
1998-09-15 12:19:12 -07:00
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
/* When a region is deleted, its parents inherit the REG_EH_REGION
numbers already assigned. */
bitmap aka;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Each region does exactly one thing. */
enum eh_region_type
{
except.c (enum eh_region_type): Add ERT_UNKNOWN. * except.c (enum eh_region_type): Add ERT_UNKNOWN. (mark_eh_region, case ERT_UKNONW): New case. From-SVN: r47123
2001-11-17 17:33:57 +00:00
ERT_UNKNOWN = 0,
ERT_CLEANUP,
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
ERT_TRY,
ERT_CATCH,
ERT_ALLOWED_EXCEPTIONS,
ERT_MUST_NOT_THROW,
ERT_THROW,
ERT_FIXUP
} type;
ChangeLog.2, [...]: Fix spelling errors. * ChangeLog.2, ChangeLog.3, ChangeLog.4, ChangeLog.5, ChangeLog, cfg.c, cfganal.c, cfgcleanup.c, cfglayout.c, cfgloop.c, cfgrtl.c, collect2.c, combine.c, config.in, configure, configure.in, conflict.c, dwarf2out.c, dwarfout.c, except.c, final.c, flow.c, genattrtab.c, ggc-page.c, jump.c, lcm.c, predict.c, reg-stack.c, reload1.c, rtlanal.c, sched-rgn.c, toplev.c, unwind-dw2-fde.h: Fix spelling errors. From-SVN: r46928
2001-11-11 11:25:28 +00:00
/* Holds the action to perform based on the preceding type. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
union eh_region_u {
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* A list of catch blocks, a surrounding try block,
and the label for continuing after a catch. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
struct eh_region_u_try {
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *catch;
struct eh_region *last_catch;
struct eh_region *prev_try;
rtx continue_label;
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
} GTY ((tag ("ERT_TRY"))) try;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
/* The list through the catch handlers, the list of type objects
matched, and the list of associated filters. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
struct eh_region_u_catch {
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *next_catch;
struct eh_region *prev_catch;
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
tree type_list;
tree filter_list;
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
} GTY ((tag ("ERT_CATCH"))) catch;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* A tree_list of allowed types. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
struct eh_region_u_allowed {
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
tree type_list;
int filter;
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
} GTY ((tag ("ERT_ALLOWED_EXCEPTIONS"))) allowed;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
/* The type given by a call to "throw foo();", or discovered
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for a throw. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
struct eh_region_u_throw {
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
tree type;
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
} GTY ((tag ("ERT_THROW"))) throw;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Retain the cleanup expression even after expansion so that
we can match up fixup regions. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
struct eh_region_u_cleanup {
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
tree exp;
re PR c++/8805 (compile time regression with many member variables) PR c++/8805 * except.c (eh_region_u_cleanup): Add prev_try. (expand_eh_region_end_cleanup): Set it. (reachable_handlers): Use it to skip over cleanup blocks. PR c++/8805 * g++.dg/eh/cleanup1.C: New test. From-SVN: r64465
2003-03-17 06:09:30 +00:00
struct eh_region *prev_try;
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
} GTY ((tag ("ERT_CLEANUP"))) cleanup;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* The real region (by expression and by pointer) that fixup code
should live in. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
struct eh_region_u_fixup {
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
tree cleanup_exp;
struct eh_region *real_region;
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
} GTY ((tag ("ERT_FIXUP"))) fixup;
} GTY ((desc ("%0.type"))) u;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
/* Entry point for this region's handler before landing pads are built. */
rtx label;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
/* Entry point for this region's handler from the runtime eh library. */
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
rtx landing_pad;
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
/* Entry point for this region's handler from an inner region. */
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
rtx post_landing_pad;
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
/* The RESX insn for handing off control to the next outermost handler,
if appropriate. */
rtx resume;
Makefile.in (calls.o): Depend on except.h. * Makefile.in (calls.o): Depend on except.h. * calls.c: Include except.h. (emit_call_1): Call note_eh_region_may_contain_throw if appropriate. * except.c (eh_region): Add may_contain_throw. (expand_eh_region_end_cleanup): Do not include handler code when it cannot be reached. (note_eh_region_may_contain_throw): New function. * except.h (note_eh_region_may_contain_throw): New function. * call.c (build_over_call): Use build_cxx_call. (build_cxx_call): New method, split out of build_over_call. * cp-tree.h (language_function): Add can_throw. (build_cxx_call): Declare it. * decl.c (finish_function): If a function does not contain any calls to functions that can throw an exception, indicate that fact. * decl2.c (mark_used): Do not defer the instantiation of functions, if the current function does not throw. * optimize.c (maybe_clone_body): Copy TREE_NOTHROW to the clones. * pt.c (instantiate_decl): Make sure import_export_decl is called before emitting things. * rtti.c (throw_bad_cast): Use build_cxx_call. (build_dynamic_cast_1): Likewise. * typeck.c (build_function_call): Likewise. * g++.dg/template/recurse.C: Adjust location of error messages. From-SVN: r65929
2003-04-22 05:44:12 +00:00
/* True if something in this region may throw. */
unsigned may_contain_throw : 1;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
};
tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill. (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill. (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill. (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New. * c-decl.c (init_decl_processing): Update accordingly. * expr.c (expand_builtin): Likewise. * cp/decl.c (init_decl_processing): Likewise. * rtl.h (global_rtl): Add cfa entry. (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New. (LAST_VIRTUAL_REGISTER): Update. * emit-rtl.c (global_rtl): Add cfa entry. (init_emit): Initialize it. * function.c (cfa_offset): New. (instantiate_virtual_regs): Initialize it. (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx. (expand_function_end): Call expand_eh_return. * tm.texi (ARG_POINTER_CFA_OFFSET): New. * except.c (current_function_eh_stub_label): Kill. (current_function_eh_old_stub_label): Likwise; update all references. (expand_builtin_set_return_addr_reg): Kill. (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill. (expand_builtin_set_eh_regs): Kill. (eh_regs): Produce a third reg for the actual handler address. (eh_return_context, eh_return_stack_adjust): New. (eh_return_handler, eh_return_stub_label): New. (init_eh_for_function): Initialize them. (expand_builtin_eh_return, expand_eh_return): New. * except.h: Update prototypes. * flow.c (find_basic_blocks_1): Update references to the stub label. * function.h (struct function): Kill stub label elements. * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the register number is one that would be in the previous window. Provide a dummy definition for non-windowed targets. (get_reg_addr): New function. (get_reg, put_reg, copy_reg): Use it. (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa. * alpha.c (alpha_eh_epilogue_sp_ofs): New. (alpha_init_expanders): Initialize it. (alpha_expand_epilogue): Use it. * alpha.h: Declare it. * alpha.md (eh_epilogue): New. * m68h.h (ARG_POINTER_CFA_OFFSET): New. * sparc.h (ARG_POINTER_CFA_OFFSET): New. From-SVN: r22436
1998-09-15 12:19:12 -07:00
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
struct call_site_record GTY(())
{
rtx landing_pad;
int action;
};
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Used to save exception status for each function. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
struct eh_status GTY(())
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
{
/* The tree of all regions for this function. */
struct eh_region *region_tree;
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* The same information as an indexable array. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
struct eh_region ** GTY ((length ("%h.last_region_number"))) region_array;
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* The most recently open region. */
struct eh_region *cur_region;
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* This is the region for which we are processing catch blocks. */
struct eh_region *try_region;
tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill. (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill. (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill. (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New. * c-decl.c (init_decl_processing): Update accordingly. * expr.c (expand_builtin): Likewise. * cp/decl.c (init_decl_processing): Likewise. * rtl.h (global_rtl): Add cfa entry. (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New. (LAST_VIRTUAL_REGISTER): Update. * emit-rtl.c (global_rtl): Add cfa entry. (init_emit): Initialize it. * function.c (cfa_offset): New. (instantiate_virtual_regs): Initialize it. (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx. (expand_function_end): Call expand_eh_return. * tm.texi (ARG_POINTER_CFA_OFFSET): New. * except.c (current_function_eh_stub_label): Kill. (current_function_eh_old_stub_label): Likwise; update all references. (expand_builtin_set_return_addr_reg): Kill. (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill. (expand_builtin_set_eh_regs): Kill. (eh_regs): Produce a third reg for the actual handler address. (eh_return_context, eh_return_stack_adjust): New. (eh_return_handler, eh_return_stub_label): New. (init_eh_for_function): Initialize them. (expand_builtin_eh_return, expand_eh_return): New. * except.h: Update prototypes. * flow.c (find_basic_blocks_1): Update references to the stub label. * function.h (struct function): Kill stub label elements. * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the register number is one that would be in the previous window. Provide a dummy definition for non-windowed targets. (get_reg_addr): New function. (get_reg, put_reg, copy_reg): Use it. (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa. * alpha.c (alpha_eh_epilogue_sp_ofs): New. (alpha_init_expanders): Initialize it. (alpha_expand_epilogue): Use it. * alpha.h: Declare it. * alpha.md (eh_epilogue): New. * m68h.h (ARG_POINTER_CFA_OFFSET): New. * sparc.h (ARG_POINTER_CFA_OFFSET): New. From-SVN: r22436
1998-09-15 12:19:12 -07:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
rtx filter;
rtx exc_ptr;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int built_landing_pads;
int last_region_number;
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
varray_type ttype_data;
varray_type ehspec_data;
varray_type action_record_data;
flow.c (count_basic_blocks, [...]): A rethrow can occur outside of an EH region. * flow.c (count_basic_blocks, find_basic_blocks_1): A rethrow can occur outside of an EH region. * except.c: Correct comments about rethrow behavior. (rethrow_symbol_map): Do nothing if !flag_new_exceptions. * flow.c (make_edges): Always call make_eh_edge for calls. From-SVN: r32432
2000-03-08 16:30:17 -05:00
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
htab_t GTY ((param_is (struct ehl_map_entry))) exception_handler_label_map;
struct call_site_record * GTY ((length ("%h.call_site_data_used")))
call_site_data;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int call_site_data_used;
int call_site_data_size;
rtx ehr_stackadj;
rtx ehr_handler;
rtx ehr_label;
rtx sjlj_fc;
rtx sjlj_exit_after;
};
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static int t2r_eq PARAMS ((const PTR,
const PTR));
static hashval_t t2r_hash PARAMS ((const PTR));
static void add_type_for_runtime PARAMS ((tree));
static tree lookup_type_for_runtime PARAMS ((tree));
static struct eh_region *expand_eh_region_end PARAMS ((void));
except.c (get_exception_pointer, [...]): Take a struct function. * except.c (get_exception_pointer, get_exception_filter): Take a struct function. Update all callers. * except.h (get_exception_pointer): Update declaration. * expr.c (expand_expr): Update get_exception_pointer call. * integrate.c (expand_inline_function): Remap the exception pointer from callee to caller. From-SVN: r43060
2001-06-08 15:57:23 -07:00
static rtx get_exception_filter PARAMS ((struct function *));
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static void collect_eh_region_array PARAMS ((void));
static void resolve_fixup_regions PARAMS ((void));
static void remove_fixup_regions PARAMS ((void));
except.c (remove_unreachable_regions): New. * except.c (remove_unreachable_regions): New. (free_eh_status): Clear exception_handler_labels. (convert_from_eh_region_ranges): Call remove_unreachable_regions. (find_exception_handler_labels): Don't add the same label more than once. (remove_exception_handler_label): Don't die if find_exception_handler_labels hasn't been called for the current function yet. From-SVN: r48845
2002-01-14 22:06:26 +01:00
static void remove_unreachable_regions PARAMS ((rtx));
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static void convert_from_eh_region_ranges_1 PARAMS ((rtx *, int *, int));
static struct eh_region *duplicate_eh_region_1 PARAMS ((struct eh_region *,
struct inline_remap *));
static void duplicate_eh_region_2 PARAMS ((struct eh_region *,
struct eh_region **));
static int ttypes_filter_eq PARAMS ((const PTR,
const PTR));
static hashval_t ttypes_filter_hash PARAMS ((const PTR));
static int ehspec_filter_eq PARAMS ((const PTR,
const PTR));
static hashval_t ehspec_filter_hash PARAMS ((const PTR));
static int add_ttypes_entry PARAMS ((htab_t, tree));
static int add_ehspec_entry PARAMS ((htab_t, htab_t,
tree));
static void assign_filter_values PARAMS ((void));
static void build_post_landing_pads PARAMS ((void));
static void connect_post_landing_pads PARAMS ((void));
static void dw2_build_landing_pads PARAMS ((void));
struct sjlj_lp_info;
static bool sjlj_find_directly_reachable_regions
PARAMS ((struct sjlj_lp_info *));
static void sjlj_assign_call_site_values
PARAMS ((rtx, struct sjlj_lp_info *));
static void sjlj_mark_call_sites
PARAMS ((struct sjlj_lp_info *));
static void sjlj_emit_function_enter PARAMS ((rtx));
static void sjlj_emit_function_exit PARAMS ((void));
static void sjlj_emit_dispatch_table
PARAMS ((rtx, struct sjlj_lp_info *));
static void sjlj_build_landing_pads PARAMS ((void));
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
static hashval_t ehl_hash PARAMS ((const PTR));
static int ehl_eq PARAMS ((const PTR,
const PTR));
static void add_ehl_entry PARAMS ((rtx,
struct eh_region *));
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static void remove_exception_handler_label PARAMS ((rtx));
static void remove_eh_handler PARAMS ((struct eh_region *));
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
static int for_each_eh_label_1 PARAMS ((PTR *, PTR));
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct reachable_info;
/* The return value of reachable_next_level. */
enum reachable_code
{
/* The given exception is not processed by the given region. */
RNL_NOT_CAUGHT,
/* The given exception may need processing by the given region. */
RNL_MAYBE_CAUGHT,
/* The given exception is completely processed by the given region. */
RNL_CAUGHT,
/* The given exception is completely processed by the runtime. */
RNL_BLOCKED
};
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static int check_handled PARAMS ((tree, tree));
static void add_reachable_handler
PARAMS ((struct reachable_info *, struct eh_region *,
struct eh_region *));
static enum reachable_code reachable_next_level
PARAMS ((struct eh_region *, tree, struct reachable_info *));
static int action_record_eq PARAMS ((const PTR,
const PTR));
static hashval_t action_record_hash PARAMS ((const PTR));
static int add_action_record PARAMS ((htab_t, int, int));
static int collect_one_action_chain PARAMS ((htab_t,
struct eh_region *));
static int add_call_site PARAMS ((rtx, int));
static void push_uleb128 PARAMS ((varray_type *,
unsigned int));
static void push_sleb128 PARAMS ((varray_type *, int));
#ifndef HAVE_AS_LEB128
static int dw2_size_of_call_site_table PARAMS ((void));
static int sjlj_size_of_call_site_table PARAMS ((void));
#endif
static void dw2_output_call_site_table PARAMS ((void));
static void sjlj_output_call_site_table PARAMS ((void));
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Routine to see if exception handling is turned on.
dbxout.c: Follow spelling conventions. * dbxout.c: Follow spelling conventions. * defaults.h: Likewise. * df.c: Likewise. * diagnostic.h: Likewise. * doloop.c: Likewise. * dwarf2out.c: Likewise. * dwarfout.c: Likewise. * emit-rtl.c: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. * flags.h: Likewise. * flow.c: Likewise. * fold-const.c: Likewise. * function.c: Likewise. * function.h: Likewise. * gcc.c: Likewise. * gcov-io.h: Likewise. * gcov.c: Likewise. * gcse.c: Likewise. * genattrtab.c: Likewise. * genconfig.c: Likewise. * genrecog.c: Likewise. * ggc-page.c: Likewise. * ggc.h: Likewise. * global.c: Likewise. * gthr-win32.h: Likewise. * integrate.c: Likewise. * jump.c: Likewise. * langhooks.c: Likewise. * langhooks.h: Likewise. * line-map.h: Likewise. * local-alloc.c: Likewise. * longlong.h: Likewise. * loop.c: Likewise. * loop.h: Likewise. From-SVN: r57406
2002-09-22 14:09:34 +00:00
DO_WARN is nonzero if we want to inform the user that exception
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
handling is turned off.
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
This is used to ensure that -fexceptions has been specified if the
compiler tries to use any exception-specific functions. */
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int
doing_eh (do_warn)
int do_warn;
{
if (! flag_exceptions)
{
static int warned = 0;
if (! warned && do_warn)
{
error ("exception handling disabled, use -fexceptions to enable");
warned = 1;
}
return 0;
}
return 1;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
init_eh ()
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! flag_exceptions)
return;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
type_to_runtime_map = htab_create_ggc (31, t2r_hash, t2r_eq, NULL);
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Create the SjLj_Function_Context structure. This should match
the definition in unwind-sjlj.c. */
if (USING_SJLJ_EXCEPTIONS)
{
tree f_jbuf, f_per, f_lsda, f_prev, f_cs, f_data, tmp;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
Makefile.in (except.o): Update. * Makefile.in (except.o): Update. * except.c: Include langhooks.h. (init_eh): Use langhook. * langhooks-def.h (LANG_HOOKS_MAKE_TYPE, LANG_HOOKS_FOR_TYPES_INITIALIZER): New. (LANG_HOOKS_INITIALIZER): Update. * langhooks.h (lang_hooks_for_types): New. (struct lang_hooks): Add it. * tree.c (make_lang_type_fn, make_lang_type): Remove. * tree.h (make_lang_type_fn, make_lang_type): Remove. config: * alpha/alpha.c: Include langhooks.h. (alpha_build_va_list): Use langhook. * d30v/d30v.c: Include langhooks.h. (d30v_build_va_list): Use langhook. * i386/i386.c: Include langhooks.h. (ix86_build_va_list): Use langhook. * rs6000/rs6000.c (rs6000_build_va_list): Use langhook. * s390/s390.c: Include langhooks.h. (s390_build_va_list): Use langhook. * stormy16/stormy16.c: Include langhooks.h. (stormy16_build_va_list): Use langhook. cp: * cp-lang.c (LANG_HOOKS_MAKE_TYPE): Redefine. * cp-tree.h (cp_make_lang_type): Rename. * lex.c (cp_make_lang_type): Rename. (make_aggr_type): Update. * tree.c (init_tree): Don't set make_lang_type_fn. From-SVN: r51558
2002-03-29 08:43:22 +00:00
sjlj_fc_type_node = (*lang_hooks.types.make_type) (RECORD_TYPE);
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
f_prev = build_decl (FIELD_DECL, get_identifier ("__prev"),
build_pointer_type (sjlj_fc_type_node));
DECL_FIELD_CONTEXT (f_prev) = sjlj_fc_type_node;
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
f_cs = build_decl (FIELD_DECL, get_identifier ("__call_site"),
integer_type_node);
DECL_FIELD_CONTEXT (f_cs) = sjlj_fc_type_node;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
tmp = build_index_type (build_int_2 (4 - 1, 0));
Makefile.in (convert.o, [...]): Update. * Makefile.in (convert.o, calls.o, expmed.o): Update. * attribs.c (handle_mode_attribute, handle_vector_size_attribute): Use new hooks. * builtin-types.def (BT_PTRMODE): Update. * c-common.c (type_for_size): Rename c_common_type_for_size. (type_for_mode): Similarly. (shorten_compare, pointer_int_sum, c_common_nodes_and_builtins): Use new hook. * c-bommon.h (c_common_type_for_size, c_common_type_for_mode): New. * c-decl.c (finish_enum, build_enumerator): Use new hooks. * c-lang.c (LANG_HOOKS_TYPE_FOR_MODE, LANG_HOOKS_TYPE_FOR_SIZE): Redefine. * c-typeck.c (common_type, comptypes, default_conversion): Use new hooks. * calls.c: Include langhooks.h. (emit_library_call_value_1): Use new hooks. Avoid redundant calls. * convert.c: Include langhooks.h (convert_to_pointer, convert_to_integer): Use new hooks. * except.c (init_eh): Similarly. * expmed.c: Include langhooks.h. (expand_mult_add): Use new hooks. * expr.c (store_expr, store_constructor, expand_expr, do_jump, try_casesi): Similarly. * fold-const.c (optimize_bit_field_compare, make_range, decode_field_reference, fold_truthop, fold): Similarly. * function.c (assign_stack_local_1, assign_stack_temp_for_type, put_var_into_stack): Similarly. * langhooks-def.h (LANG_HOOKS_TYPE_FOR_MODE, LANG_HOOKS_TYPE_FOR_SIZE): New. (LANG_HOOKS_TYPES_INITIALIZER): Update. * langhooks.h (lang_hooks_for_types): New hooks. * stmt.c (expand_decl_cleanup, emit_case_nodes): Use new hooks. * tree.c (get_unwidened, get_narrower): Similarly. * tree.h (type_for_mode, type_for_size): Remove. * varasm.c (force_const_mem): Use new hooks. ada: * gigi.h (type_for_size, type_for_mode): Rename. * misc.c (LANG_HOOKS_TYPE_FOR_MODE, LANG_HOOKS_TYPE_FOR_SIZE): Redefine. * trans.c (tree_transform): Update. * utils.c (gnat_init_decl_processing, init_gigi_decls, builtin_function, float_type_for_size, signed_or_unsigned_type, build_vms_descriptor, unchecked_convert): Update. (type_for_mode, type_for_size): Rename. * utils2.c (nonbinary_modular_operation): Update. cp: * cp-lang.c (LANG_HOOKS_TYPE_FOR_MODE, LANG_HOOKS_TYPE_FOR_SIZE): Redefine. * cvt.c (cp_convert_to_pointer, type_promotes_to): Use new hooks. * decl.c (finish_enum): Similarly. * error.c (dump_type): Similarly. * lex.c (cxx_init): Similarly. * mangle.c (write_builtin_type): Similarly. * typeck.c (comptypes): Similarly. f: * com.c (LANG_HOOKS_TYPE_FOR_MODE, LANG_HOOKS_TYPE_FOR_SIZE): Redefine. (type_for_mode, type_for_size): Rename. (signed_or_unsigned_type, signed_type, truthvalue_conversion, unsigned_type): Use new hooks. java: * Make-lang.in (builtins.o): Update. * boehm.c (get_boehm_type_descriptor): Update. * builtins.c: Include langhooks.h. * decl.c (java_init_decl_processing): Update. * java-tree.h (java_type_for_mode, java_type_for_size): New. * lang.c (LANG_HOOKS_TYPE_FOR_MODE, LANG_HOOKS_TYPE_FOR_SIaZE): Redefine. * typeck.c (type_for_mode, type_for_size): Update. objc: * objc-act.c (handle_impent): Update. * objc-lang.c (LANG_HOOKS_TYPE_FOR_MODE, LANG_HOOKS_TYPE_FOR_SIaZE): Redefine. From-SVN: r51571
2002-03-29 21:46:27 +00:00
tmp = build_array_type ((*lang_hooks.types.type_for_mode) (word_mode, 1),
tmp);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
f_data = build_decl (FIELD_DECL, get_identifier ("__data"), tmp);
DECL_FIELD_CONTEXT (f_data) = sjlj_fc_type_node;
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
f_per = build_decl (FIELD_DECL, get_identifier ("__personality"),
ptr_type_node);
DECL_FIELD_CONTEXT (f_per) = sjlj_fc_type_node;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
f_lsda = build_decl (FIELD_DECL, get_identifier ("__lsda"),
ptr_type_node);
DECL_FIELD_CONTEXT (f_lsda) = sjlj_fc_type_node;
flow.c (count_basic_blocks, [...]): A rethrow can occur outside of an EH region. * flow.c (count_basic_blocks, find_basic_blocks_1): A rethrow can occur outside of an EH region. * except.c: Correct comments about rethrow behavior. (rethrow_symbol_map): Do nothing if !flag_new_exceptions. * flow.c (make_edges): Always call make_eh_edge for calls. From-SVN: r32432
2000-03-08 16:30:17 -05:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#ifdef DONT_USE_BUILTIN_SETJMP
#ifdef JMP_BUF_SIZE
tmp = build_int_2 (JMP_BUF_SIZE - 1, 0);
#else
/* Should be large enough for most systems, if it is not,
JMP_BUF_SIZE should be defined with the proper value. It will
also tend to be larger than necessary for most systems, a more
optimal port will define JMP_BUF_SIZE. */
tmp = build_int_2 (FIRST_PSEUDO_REGISTER + 2 - 1, 0);
#endif
#else
/* This is 2 for builtin_setjmp, plus whatever the target requires
via STACK_SAVEAREA_MODE (SAVE_NONLOCAL). */
tmp = build_int_2 ((GET_MODE_SIZE (STACK_SAVEAREA_MODE (SAVE_NONLOCAL))
/ GET_MODE_SIZE (Pmode)) + 2 - 1, 0);
#endif
tmp = build_index_type (tmp);
tmp = build_array_type (ptr_type_node, tmp);
f_jbuf = build_decl (FIELD_DECL, get_identifier ("__jbuf"), tmp);
#ifdef DONT_USE_BUILTIN_SETJMP
/* We don't know what the alignment requirements of the
runtime's jmp_buf has. Overestimate. */
DECL_ALIGN (f_jbuf) = BIGGEST_ALIGNMENT;
DECL_USER_ALIGN (f_jbuf) = 1;
#endif
DECL_FIELD_CONTEXT (f_jbuf) = sjlj_fc_type_node;
TYPE_FIELDS (sjlj_fc_type_node) = f_prev;
TREE_CHAIN (f_prev) = f_cs;
TREE_CHAIN (f_cs) = f_data;
TREE_CHAIN (f_data) = f_per;
TREE_CHAIN (f_per) = f_lsda;
TREE_CHAIN (f_lsda) = f_jbuf;
layout_type (sjlj_fc_type_node);
/* Cache the interesting field offsets so that we have
easy access from rtl. */
sjlj_fc_call_site_ofs
= (tree_low_cst (DECL_FIELD_OFFSET (f_cs), 1)
+ tree_low_cst (DECL_FIELD_BIT_OFFSET (f_cs), 1) / BITS_PER_UNIT);
sjlj_fc_data_ofs
= (tree_low_cst (DECL_FIELD_OFFSET (f_data), 1)
+ tree_low_cst (DECL_FIELD_BIT_OFFSET (f_data), 1) / BITS_PER_UNIT);
sjlj_fc_personality_ofs
= (tree_low_cst (DECL_FIELD_OFFSET (f_per), 1)
+ tree_low_cst (DECL_FIELD_BIT_OFFSET (f_per), 1) / BITS_PER_UNIT);
sjlj_fc_lsda_ofs
= (tree_low_cst (DECL_FIELD_OFFSET (f_lsda), 1)
+ tree_low_cst (DECL_FIELD_BIT_OFFSET (f_lsda), 1) / BITS_PER_UNIT);
sjlj_fc_jbuf_ofs
= (tree_low_cst (DECL_FIELD_OFFSET (f_jbuf), 1)
+ tree_low_cst (DECL_FIELD_BIT_OFFSET (f_jbuf), 1) / BITS_PER_UNIT);
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
init_eh_for_function ()
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
cfun->eh = (struct eh_status *)
ggc_alloc_cleared (sizeof (struct eh_status));
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Start an exception handling region. All instructions emitted
after this point are considered to be part of the region until
expand_eh_region_end is invoked. */
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
expand_eh_region_start ()
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *new_region;
struct eh_region *cur_region;
rtx note;
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! doing_eh (0))
return;
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Insert a new blank region as a leaf in the tree. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
new_region = (struct eh_region *) ggc_alloc_cleared (sizeof (*new_region));
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
cur_region = cfun->eh->cur_region;
new_region->outer = cur_region;
if (cur_region)
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
new_region->next_peer = cur_region->inner;
cur_region->inner = new_region;
}
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
else
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
new_region->next_peer = cfun->eh->region_tree;
cfun->eh->region_tree = new_region;
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
cfun->eh->cur_region = new_region;
/* Create a note marking the start of this region. */
new_region->region_number = ++cfun->eh->last_region_number;
bitmap.c: Change NULL_PTR to NULL or "(rtx*)0". * bitmap.c: Change NULL_PTR to NULL or "(rtx*)0". * c-common.c: Likewise. * c-decl.c: Likewise. * combine.c: Likewise. * rs6000.c: Likewise. * except.c: Likewise. * explow.c: Likewise. * expr.c: Likewise. * fold-const.c: Likewise. * function.c: Likewise. * gcc.c: Likewise. * gcse.c: Likewise. * integrate.c: Likewise. * loop.c: Likewise. * objc/objc-act.c: Likewise. * recog.c: Likewise. * reg-stack.c: Likewise. * reload.c: Likewise. * reload1.c: Likewise. * simplify-rtx.c: Likewise. * stmt.c: Likewise. * varasm.c: Likewise. From-SVN: r41722
2001-05-01 12:11:35 +00:00
note = emit_note (NULL, NOTE_INSN_EH_REGION_BEG);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
NOTE_EH_HANDLER (note) = new_region->region_number;
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Common code to end a region. Returns the region just ended. */
Flow now removes exception regions when their handlers are all removed. From-SVN: r20115
1998-05-28 07:32:33 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static struct eh_region *
expand_eh_region_end ()
Flow now removes exception regions when their handlers are all removed. From-SVN: r20115
1998-05-28 07:32:33 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *cur_region = cfun->eh->cur_region;
rtx note;
ChangeLog.0, [...]: Fix spelling errors. * ChangeLog.0, ChangeLog.2, ChangeLog.3, ChangeLog.4, ChangeLog, FSFChangeLog.10, c-decl.c, cppfiles.c, cppinit.c, cpplex.c, cpplib.c, cppmain.c, cse.c, df.c, diagnostic.c, dominance.c, dwarf2out.c, dwarfout.c, emit-rtl.c, errors.c, except.c, except.h, explow.c, function.c, gcse.c, genrecog.c, predict.c, regmove.c, sched-rgn.c, ssa-ccp.c, stmt.c, toplev.c: Fix spelling errors. From-SVN: r47279
2001-11-23 02:05:19 +00:00
/* Create a note marking the end of this region. */
bitmap.c: Change NULL_PTR to NULL or "(rtx*)0". * bitmap.c: Change NULL_PTR to NULL or "(rtx*)0". * c-common.c: Likewise. * c-decl.c: Likewise. * combine.c: Likewise. * rs6000.c: Likewise. * except.c: Likewise. * explow.c: Likewise. * expr.c: Likewise. * fold-const.c: Likewise. * function.c: Likewise. * gcc.c: Likewise. * gcse.c: Likewise. * integrate.c: Likewise. * loop.c: Likewise. * objc/objc-act.c: Likewise. * recog.c: Likewise. * reg-stack.c: Likewise. * reload.c: Likewise. * reload1.c: Likewise. * simplify-rtx.c: Likewise. * stmt.c: Likewise. * varasm.c: Likewise. From-SVN: r41722
2001-05-01 12:11:35 +00:00
note = emit_note (NULL, NOTE_INSN_EH_REGION_END);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
NOTE_EH_HANDLER (note) = cur_region->region_number;
/* Pop. */
cfun->eh->cur_region = cur_region->outer;
return cur_region;
Flow now removes exception regions when their handlers are all removed. From-SVN: r20115
1998-05-28 07:32:33 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* End an exception handling region for a cleanup. HANDLER is an
expression to expand for the cleanup. */
[multiple changes] Thu Jun 25 16:59:18 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (CATCH_ALL_TYPE): Definition moved to eh-common.h. (find_all_handler_type_matches): Add function prototype. * eh-common.h (CATCH_ALL_TYPE): Definition added. * except.c (find_all_handler_type_matches): Add function to find all runtime type info in the exception table. (output_exception_table_entry): Special case for CATCH_ALL_TYPE. 1998-06-25 Andrew MacLeod <amacleod@cygnus.com> * cp-tree.h (mark_all_runtime_matches): Add function prototype. * except.c (mark_all_runtime_matches): Set TREE_SYMBOL_REFERENCED flag for all function decls which are in the exception table. * exception.cc (__cplus_type_matcher): Check for CATCH_ALL_TYPE match. * decl2.c (finish_file): Call mark_all_runtime_matches to make sure code is emitted for any referenced rtti function. From-SVN: r20718
1998-06-25 14:11:54 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
expand_eh_region_end_cleanup (handler)
tree handler;
[multiple changes] Thu Jun 25 16:59:18 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (CATCH_ALL_TYPE): Definition moved to eh-common.h. (find_all_handler_type_matches): Add function prototype. * eh-common.h (CATCH_ALL_TYPE): Definition added. * except.c (find_all_handler_type_matches): Add function to find all runtime type info in the exception table. (output_exception_table_entry): Special case for CATCH_ALL_TYPE. 1998-06-25 Andrew MacLeod <amacleod@cygnus.com> * cp-tree.h (mark_all_runtime_matches): Add function prototype. * except.c (mark_all_runtime_matches): Set TREE_SYMBOL_REFERENCED flag for all function decls which are in the exception table. * exception.cc (__cplus_type_matcher): Check for CATCH_ALL_TYPE match. * decl2.c (finish_file): Call mark_all_runtime_matches to make sure code is emitted for any referenced rtti function. From-SVN: r20718
1998-06-25 14:11:54 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *region;
except.h (protect_cleanup_actions): Remove it. * except.h (protect_cleanup_actions): Remove it. (lang_protect_cleanup_actions): Declare it. * except.c (protect_cleanup_actions): Remove it. (lang_protect_cleanup_actions): New variable. (init_eh): Don't make protect_cleanup_actions a GC root. (expand_eh_region_and_cleanup): Call lang_protect_cleanup_actions. (output_function_exception_table): Remove unused `align' variable. * varasm.c (assemble_external): Abort if we have not yet opened the assembly output file. * except.c (cp_protect_cleanup_actions): New function. (init_exception_processing): Don't set protect_cleanup_actions here. Do set lang_protect_cleanup_actions. From-SVN: r42218
2001-05-17 18:12:27 +00:00
tree protect_cleanup_actions;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
rtx around_label;
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
rtx data_save[2];
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! doing_eh (0))
return;
[multiple changes] Thu Jun 25 16:59:18 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (CATCH_ALL_TYPE): Definition moved to eh-common.h. (find_all_handler_type_matches): Add function prototype. * eh-common.h (CATCH_ALL_TYPE): Definition added. * except.c (find_all_handler_type_matches): Add function to find all runtime type info in the exception table. (output_exception_table_entry): Special case for CATCH_ALL_TYPE. 1998-06-25 Andrew MacLeod <amacleod@cygnus.com> * cp-tree.h (mark_all_runtime_matches): Add function prototype. * except.c (mark_all_runtime_matches): Set TREE_SYMBOL_REFERENCED flag for all function decls which are in the exception table. * exception.cc (__cplus_type_matcher): Check for CATCH_ALL_TYPE match. * decl2.c (finish_file): Call mark_all_runtime_matches to make sure code is emitted for any referenced rtti function. From-SVN: r20718
1998-06-25 14:11:54 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
region = expand_eh_region_end ();
region->type = ERT_CLEANUP;
region->label = gen_label_rtx ();
region->u.cleanup.exp = handler;
re PR c++/8805 (compile time regression with many member variables) PR c++/8805 * except.c (eh_region_u_cleanup): Add prev_try. (expand_eh_region_end_cleanup): Set it. (reachable_handlers): Use it to skip over cleanup blocks. PR c++/8805 * g++.dg/eh/cleanup1.C: New test. From-SVN: r64465
2003-03-17 06:09:30 +00:00
region->u.cleanup.prev_try = cfun->eh->try_region;
[multiple changes] Thu Jun 25 16:59:18 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (CATCH_ALL_TYPE): Definition moved to eh-common.h. (find_all_handler_type_matches): Add function prototype. * eh-common.h (CATCH_ALL_TYPE): Definition added. * except.c (find_all_handler_type_matches): Add function to find all runtime type info in the exception table. (output_exception_table_entry): Special case for CATCH_ALL_TYPE. 1998-06-25 Andrew MacLeod <amacleod@cygnus.com> * cp-tree.h (mark_all_runtime_matches): Add function prototype. * except.c (mark_all_runtime_matches): Set TREE_SYMBOL_REFERENCED flag for all function decls which are in the exception table. * exception.cc (__cplus_type_matcher): Check for CATCH_ALL_TYPE match. * decl2.c (finish_file): Call mark_all_runtime_matches to make sure code is emitted for any referenced rtti function. From-SVN: r20718
1998-06-25 14:11:54 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
around_label = gen_label_rtx ();
emit_jump (around_label);
[multiple changes] Thu Jun 25 16:59:18 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (CATCH_ALL_TYPE): Definition moved to eh-common.h. (find_all_handler_type_matches): Add function prototype. * eh-common.h (CATCH_ALL_TYPE): Definition added. * except.c (find_all_handler_type_matches): Add function to find all runtime type info in the exception table. (output_exception_table_entry): Special case for CATCH_ALL_TYPE. 1998-06-25 Andrew MacLeod <amacleod@cygnus.com> * cp-tree.h (mark_all_runtime_matches): Add function prototype. * except.c (mark_all_runtime_matches): Set TREE_SYMBOL_REFERENCED flag for all function decls which are in the exception table. * exception.cc (__cplus_type_matcher): Check for CATCH_ALL_TYPE match. * decl2.c (finish_file): Call mark_all_runtime_matches to make sure code is emitted for any referenced rtti function. From-SVN: r20718
1998-06-25 14:11:54 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_label (region->label);
[multiple changes] Thu Jun 25 16:59:18 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (CATCH_ALL_TYPE): Definition moved to eh-common.h. (find_all_handler_type_matches): Add function prototype. * eh-common.h (CATCH_ALL_TYPE): Definition added. * except.c (find_all_handler_type_matches): Add function to find all runtime type info in the exception table. (output_exception_table_entry): Special case for CATCH_ALL_TYPE. 1998-06-25 Andrew MacLeod <amacleod@cygnus.com> * cp-tree.h (mark_all_runtime_matches): Add function prototype. * except.c (mark_all_runtime_matches): Set TREE_SYMBOL_REFERENCED flag for all function decls which are in the exception table. * exception.cc (__cplus_type_matcher): Check for CATCH_ALL_TYPE match. * decl2.c (finish_file): Call mark_all_runtime_matches to make sure code is emitted for any referenced rtti function. From-SVN: r20718
1998-06-25 14:11:54 +00:00
except.c: Revert 04-01 and 04-02 forced-unwind changes. gcc/ * except.c: Revert 04-01 and 04-02 forced-unwind changes. * flags.h, toplev.c, doc/invoke.texi: Likewise. * unwind-dw2.c (_Unwind_GetCFA): Fix ptr->int conversion warning. * unwind.inc (_Unwind_DeleteException): Check for null exception_cleanup. * unwind-sjlj.c (_Unwind_SjLj_Resume_or_Rethrow): New. * unwind.inc (_Unwind_Resume_or_Rethrow): New. * unwind.h: Declare them. * libgcc-std.ver (GCC_3.3): Export them. gcc/cp/ * cfns.gperf: Comment out POSIX thread cancellation points, plus abort and raise. * cfns.h: Regenerate. gcc/testsuite/ * g++.dg/eh/forced1.C: Expect catch-all handlers to run. Verify exception_cleanup not called for rethrows. * g++.dg/eh/forced2.C: Test that exception_cleanup is called when exiting catch block without rethrowing. * g++.dg/eh/forced3.C: New. * g++.dg/eh/forced4.C: New. libstdc++-v3/ * libsupc++/eh_catch.cc (__cxa_begin_catch): Handle foreign exceptions. (__cxa_end_catch): Likewise. * libsupc++/eh_throw.cc (__cxa_rethrow): Likewise. Use _Unwind_Resume_or_Rethrow. * libsupc++/eh_personality.cc (empty_exception_spec): New. (PERSONALITY_FUNCTION): Don't ignore terminate or catch-all for _UA_FORCE_UNWIND. Honor empty filter spec for foreign exceptions. Don't push terminate/unexpected to cxa functions. (__cxa_call_unexpected): Remove foreign exception fixmes. From-SVN: r66583
2003-05-07 15:11:38 -07:00
if (flag_non_call_exceptions || region->may_contain_throw)
Makefile.in (calls.o): Depend on except.h. * Makefile.in (calls.o): Depend on except.h. * calls.c: Include except.h. (emit_call_1): Call note_eh_region_may_contain_throw if appropriate. * except.c (eh_region): Add may_contain_throw. (expand_eh_region_end_cleanup): Do not include handler code when it cannot be reached. (note_eh_region_may_contain_throw): New function. * except.h (note_eh_region_may_contain_throw): New function. * call.c (build_over_call): Use build_cxx_call. (build_cxx_call): New method, split out of build_over_call. * cp-tree.h (language_function): Add can_throw. (build_cxx_call): Declare it. * decl.c (finish_function): If a function does not contain any calls to functions that can throw an exception, indicate that fact. * decl2.c (mark_used): Do not defer the instantiation of functions, if the current function does not throw. * optimize.c (maybe_clone_body): Copy TREE_NOTHROW to the clones. * pt.c (instantiate_decl): Make sure import_export_decl is called before emitting things. * rtti.c (throw_bad_cast): Use build_cxx_call. (build_dynamic_cast_1): Likewise. * typeck.c (build_function_call): Likewise. * g++.dg/template/recurse.C: Adjust location of error messages. From-SVN: r65929
2003-04-22 05:44:12 +00:00
{
/* Give the language a chance to specify an action to be taken if an
exception is thrown that would propagate out of the HANDLER. */
protect_cleanup_actions
= (lang_protect_cleanup_actions
? (*lang_protect_cleanup_actions) ()
: NULL_TREE);
except.h (protect_cleanup_actions): Remove it. * except.h (protect_cleanup_actions): Remove it. (lang_protect_cleanup_actions): Declare it. * except.c (protect_cleanup_actions): Remove it. (lang_protect_cleanup_actions): New variable. (init_eh): Don't make protect_cleanup_actions a GC root. (expand_eh_region_and_cleanup): Call lang_protect_cleanup_actions. (output_function_exception_table): Remove unused `align' variable. * varasm.c (assemble_external): Abort if we have not yet opened the assembly output file. * except.c (cp_protect_cleanup_actions): New function. (init_exception_processing): Don't set protect_cleanup_actions here. Do set lang_protect_cleanup_actions. From-SVN: r42218
2001-05-17 18:12:27 +00:00
Makefile.in (calls.o): Depend on except.h. * Makefile.in (calls.o): Depend on except.h. * calls.c: Include except.h. (emit_call_1): Call note_eh_region_may_contain_throw if appropriate. * except.c (eh_region): Add may_contain_throw. (expand_eh_region_end_cleanup): Do not include handler code when it cannot be reached. (note_eh_region_may_contain_throw): New function. * except.h (note_eh_region_may_contain_throw): New function. * call.c (build_over_call): Use build_cxx_call. (build_cxx_call): New method, split out of build_over_call. * cp-tree.h (language_function): Add can_throw. (build_cxx_call): Declare it. * decl.c (finish_function): If a function does not contain any calls to functions that can throw an exception, indicate that fact. * decl2.c (mark_used): Do not defer the instantiation of functions, if the current function does not throw. * optimize.c (maybe_clone_body): Copy TREE_NOTHROW to the clones. * pt.c (instantiate_decl): Make sure import_export_decl is called before emitting things. * rtti.c (throw_bad_cast): Use build_cxx_call. (build_dynamic_cast_1): Likewise. * typeck.c (build_function_call): Likewise. * g++.dg/template/recurse.C: Adjust location of error messages. From-SVN: r65929
2003-04-22 05:44:12 +00:00
if (protect_cleanup_actions)
expand_eh_region_start ();
[multiple changes] Thu Jun 25 16:59:18 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (CATCH_ALL_TYPE): Definition moved to eh-common.h. (find_all_handler_type_matches): Add function prototype. * eh-common.h (CATCH_ALL_TYPE): Definition added. * except.c (find_all_handler_type_matches): Add function to find all runtime type info in the exception table. (output_exception_table_entry): Special case for CATCH_ALL_TYPE. 1998-06-25 Andrew MacLeod <amacleod@cygnus.com> * cp-tree.h (mark_all_runtime_matches): Add function prototype. * except.c (mark_all_runtime_matches): Set TREE_SYMBOL_REFERENCED flag for all function decls which are in the exception table. * exception.cc (__cplus_type_matcher): Check for CATCH_ALL_TYPE match. * decl2.c (finish_file): Call mark_all_runtime_matches to make sure code is emitted for any referenced rtti function. From-SVN: r20718
1998-06-25 14:11:54 +00:00
Makefile.in (calls.o): Depend on except.h. * Makefile.in (calls.o): Depend on except.h. * calls.c: Include except.h. (emit_call_1): Call note_eh_region_may_contain_throw if appropriate. * except.c (eh_region): Add may_contain_throw. (expand_eh_region_end_cleanup): Do not include handler code when it cannot be reached. (note_eh_region_may_contain_throw): New function. * except.h (note_eh_region_may_contain_throw): New function. * call.c (build_over_call): Use build_cxx_call. (build_cxx_call): New method, split out of build_over_call. * cp-tree.h (language_function): Add can_throw. (build_cxx_call): Declare it. * decl.c (finish_function): If a function does not contain any calls to functions that can throw an exception, indicate that fact. * decl2.c (mark_used): Do not defer the instantiation of functions, if the current function does not throw. * optimize.c (maybe_clone_body): Copy TREE_NOTHROW to the clones. * pt.c (instantiate_decl): Make sure import_export_decl is called before emitting things. * rtti.c (throw_bad_cast): Use build_cxx_call. (build_dynamic_cast_1): Likewise. * typeck.c (build_function_call): Likewise. * g++.dg/template/recurse.C: Adjust location of error messages. From-SVN: r65929
2003-04-22 05:44:12 +00:00
/* In case this cleanup involves an inline destructor with a try block in
it, we need to save the EH return data registers around it. */
data_save[0] = gen_reg_rtx (ptr_mode);
emit_move_insn (data_save[0], get_exception_pointer (cfun));
data_save[1] = gen_reg_rtx (word_mode);
emit_move_insn (data_save[1], get_exception_filter (cfun));
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
Makefile.in (calls.o): Depend on except.h. * Makefile.in (calls.o): Depend on except.h. * calls.c: Include except.h. (emit_call_1): Call note_eh_region_may_contain_throw if appropriate. * except.c (eh_region): Add may_contain_throw. (expand_eh_region_end_cleanup): Do not include handler code when it cannot be reached. (note_eh_region_may_contain_throw): New function. * except.h (note_eh_region_may_contain_throw): New function. * call.c (build_over_call): Use build_cxx_call. (build_cxx_call): New method, split out of build_over_call. * cp-tree.h (language_function): Add can_throw. (build_cxx_call): Declare it. * decl.c (finish_function): If a function does not contain any calls to functions that can throw an exception, indicate that fact. * decl2.c (mark_used): Do not defer the instantiation of functions, if the current function does not throw. * optimize.c (maybe_clone_body): Copy TREE_NOTHROW to the clones. * pt.c (instantiate_decl): Make sure import_export_decl is called before emitting things. * rtti.c (throw_bad_cast): Use build_cxx_call. (build_dynamic_cast_1): Likewise. * typeck.c (build_function_call): Likewise. * g++.dg/template/recurse.C: Adjust location of error messages. From-SVN: r65929
2003-04-22 05:44:12 +00:00
expand_expr (handler, const0_rtx, VOIDmode, 0);
[multiple changes] Thu Jun 25 16:59:18 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (CATCH_ALL_TYPE): Definition moved to eh-common.h. (find_all_handler_type_matches): Add function prototype. * eh-common.h (CATCH_ALL_TYPE): Definition added. * except.c (find_all_handler_type_matches): Add function to find all runtime type info in the exception table. (output_exception_table_entry): Special case for CATCH_ALL_TYPE. 1998-06-25 Andrew MacLeod <amacleod@cygnus.com> * cp-tree.h (mark_all_runtime_matches): Add function prototype. * except.c (mark_all_runtime_matches): Set TREE_SYMBOL_REFERENCED flag for all function decls which are in the exception table. * exception.cc (__cplus_type_matcher): Check for CATCH_ALL_TYPE match. * decl2.c (finish_file): Call mark_all_runtime_matches to make sure code is emitted for any referenced rtti function. From-SVN: r20718
1998-06-25 14:11:54 +00:00
Makefile.in (calls.o): Depend on except.h. * Makefile.in (calls.o): Depend on except.h. * calls.c: Include except.h. (emit_call_1): Call note_eh_region_may_contain_throw if appropriate. * except.c (eh_region): Add may_contain_throw. (expand_eh_region_end_cleanup): Do not include handler code when it cannot be reached. (note_eh_region_may_contain_throw): New function. * except.h (note_eh_region_may_contain_throw): New function. * call.c (build_over_call): Use build_cxx_call. (build_cxx_call): New method, split out of build_over_call. * cp-tree.h (language_function): Add can_throw. (build_cxx_call): Declare it. * decl.c (finish_function): If a function does not contain any calls to functions that can throw an exception, indicate that fact. * decl2.c (mark_used): Do not defer the instantiation of functions, if the current function does not throw. * optimize.c (maybe_clone_body): Copy TREE_NOTHROW to the clones. * pt.c (instantiate_decl): Make sure import_export_decl is called before emitting things. * rtti.c (throw_bad_cast): Use build_cxx_call. (build_dynamic_cast_1): Likewise. * typeck.c (build_function_call): Likewise. * g++.dg/template/recurse.C: Adjust location of error messages. From-SVN: r65929
2003-04-22 05:44:12 +00:00
emit_move_insn (cfun->eh->exc_ptr, data_save[0]);
emit_move_insn (cfun->eh->filter, data_save[1]);
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
Makefile.in (calls.o): Depend on except.h. * Makefile.in (calls.o): Depend on except.h. * calls.c: Include except.h. (emit_call_1): Call note_eh_region_may_contain_throw if appropriate. * except.c (eh_region): Add may_contain_throw. (expand_eh_region_end_cleanup): Do not include handler code when it cannot be reached. (note_eh_region_may_contain_throw): New function. * except.h (note_eh_region_may_contain_throw): New function. * call.c (build_over_call): Use build_cxx_call. (build_cxx_call): New method, split out of build_over_call. * cp-tree.h (language_function): Add can_throw. (build_cxx_call): Declare it. * decl.c (finish_function): If a function does not contain any calls to functions that can throw an exception, indicate that fact. * decl2.c (mark_used): Do not defer the instantiation of functions, if the current function does not throw. * optimize.c (maybe_clone_body): Copy TREE_NOTHROW to the clones. * pt.c (instantiate_decl): Make sure import_export_decl is called before emitting things. * rtti.c (throw_bad_cast): Use build_cxx_call. (build_dynamic_cast_1): Likewise. * typeck.c (build_function_call): Likewise. * g++.dg/template/recurse.C: Adjust location of error messages. From-SVN: r65929
2003-04-22 05:44:12 +00:00
if (protect_cleanup_actions)
expand_eh_region_end_must_not_throw (protect_cleanup_actions);
except.c (find_all_handler_type_matches): Free the list if we found no matches. * except.c (find_all_handler_type_matches): Free the list if we found no matches. From-SVN: r29227
1999-09-09 00:17:20 -07:00
Makefile.in (calls.o): Depend on except.h. * Makefile.in (calls.o): Depend on except.h. * calls.c: Include except.h. (emit_call_1): Call note_eh_region_may_contain_throw if appropriate. * except.c (eh_region): Add may_contain_throw. (expand_eh_region_end_cleanup): Do not include handler code when it cannot be reached. (note_eh_region_may_contain_throw): New function. * except.h (note_eh_region_may_contain_throw): New function. * call.c (build_over_call): Use build_cxx_call. (build_cxx_call): New method, split out of build_over_call. * cp-tree.h (language_function): Add can_throw. (build_cxx_call): Declare it. * decl.c (finish_function): If a function does not contain any calls to functions that can throw an exception, indicate that fact. * decl2.c (mark_used): Do not defer the instantiation of functions, if the current function does not throw. * optimize.c (maybe_clone_body): Copy TREE_NOTHROW to the clones. * pt.c (instantiate_decl): Make sure import_export_decl is called before emitting things. * rtti.c (throw_bad_cast): Use build_cxx_call. (build_dynamic_cast_1): Likewise. * typeck.c (build_function_call): Likewise. * g++.dg/template/recurse.C: Adjust location of error messages. From-SVN: r65929
2003-04-22 05:44:12 +00:00
/* We need any stack adjustment complete before the around_label. */
do_pending_stack_adjust ();
}
except.c (expand_eh_region_end_cleanup): Force pending stack adjust before emitting label that branches around cleanup code. 2001-04-26 Andrew Haley <aph@redhat.com> * except.c (expand_eh_region_end_cleanup): Force pending stack adjust before emitting label that branches around cleanup code. From-SVN: r41598
2001-04-26 17:49:01 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* We delay the generation of the _Unwind_Resume until we generate
landing pads. We emit a marker here so as to get good control
flow data in the meantime. */
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
region->resume
= emit_jump_insn (gen_rtx_RESX (VOIDmode, region->region_number));
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_barrier ();
emit_label (around_label);
[multiple changes] Thu Jun 25 16:59:18 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (CATCH_ALL_TYPE): Definition moved to eh-common.h. (find_all_handler_type_matches): Add function prototype. * eh-common.h (CATCH_ALL_TYPE): Definition added. * except.c (find_all_handler_type_matches): Add function to find all runtime type info in the exception table. (output_exception_table_entry): Special case for CATCH_ALL_TYPE. 1998-06-25 Andrew MacLeod <amacleod@cygnus.com> * cp-tree.h (mark_all_runtime_matches): Add function prototype. * except.c (mark_all_runtime_matches): Set TREE_SYMBOL_REFERENCED flag for all function decls which are in the exception table. * exception.cc (__cplus_type_matcher): Check for CATCH_ALL_TYPE match. * decl2.c (finish_file): Call mark_all_runtime_matches to make sure code is emitted for any referenced rtti function. From-SVN: r20718
1998-06-25 14:11:54 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* End an exception handling region for a try block, and prepares
for subsequent calls to expand_start_catch. */
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
expand_start_all_catch ()
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *region;
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! doing_eh (1))
return;
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
region = expand_eh_region_end ();
region->type = ERT_TRY;
region->u.try.prev_try = cfun->eh->try_region;
region->u.try.continue_label = gen_label_rtx ();
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
cfun->eh->try_region = region;
emit_jump (region->u.try.continue_label);
}
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
/* Begin a catch clause. TYPE is the type caught, a list of such types, or
null if this is a catch-all clause. Providing a type list enables to
associate the catch region with potentially several exception types, which
except.c: Fix comment formatting. * except.c: Fix comment formatting. * flags.h: Likewise. * flow.c: Likewise. * predict.c: Likewise. * simplify-rtx.c: Likewise. * system.h: Likewise. * vmsdbg.h: Likewise. * vmsdbgout.c: Likewise. From-SVN: r48349
2001-12-28 18:17:54 +00:00
is useful e.g. for Ada. */
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
expand_start_catch (type_or_list)
tree type_or_list;
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *t, *c, *l;
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
tree type_list;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! doing_eh (0))
return;
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
type_list = type_or_list;
if (type_or_list)
{
/* Ensure to always end up with a type list to normalize further
processing, then register each type against the runtime types
map. */
tree type_node;
if (TREE_CODE (type_or_list) != TREE_LIST)
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
type_list = tree_cons (NULL_TREE, type_or_list, NULL_TREE);
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
type_node = type_list;
for (; type_node; type_node = TREE_CHAIN (type_node))
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
add_type_for_runtime (TREE_VALUE (type_node));
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
expand_eh_region_start ();
t = cfun->eh->try_region;
c = cfun->eh->cur_region;
c->type = ERT_CATCH;
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
c->u.catch.type_list = type_list;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
c->label = gen_label_rtx ();
l = t->u.try.last_catch;
c->u.catch.prev_catch = l;
if (l)
l->u.catch.next_catch = c;
else
t->u.try.catch = c;
t->u.try.last_catch = c;
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_label (c->label);
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* End a catch clause. Control will resume after the try/catch block. */
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
expand_end_catch ()
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
{
Merge basic-improvements-branch to trunk From-SVN: r60174
2002-12-16 18:23:00 +00:00
struct eh_region *try_region;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! doing_eh (0))
return;
Merge basic-improvements-branch to trunk From-SVN: r60174
2002-12-16 18:23:00 +00:00
expand_eh_region_end ();
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
try_region = cfun->eh->try_region;
emit_jump (try_region->u.try.continue_label);
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* End a sequence of catch handlers for a try block. */
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
expand_end_all_catch ()
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *try_region;
if (! doing_eh (0))
return;
try_region = cfun->eh->try_region;
cfun->eh->try_region = try_region->u.try.prev_try;
emit_label (try_region->u.try.continue_label);
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* End an exception region for an exception type filter. ALLOWED is a
TREE_LIST of types to be matched by the runtime. FAILURE is an
ChangeLog.0, [...]: Fix spelling errors. * ChangeLog.0, ChangeLog.1, ChangeLog.2, ChangeLog.3, ChangeLog.4, ChangeLog.5, ChangeLog, FSFChangeLog.10, FSFChangeLog.11, c-common.c, c-common.h, c-parse.in, c-typeck.c, cfg.c, config.gcc, configure, configure.in, except.c, except.h, flow.c, function.c, gcc.c, gcse.c, genrecog.c, libgcc2.c, loop.c, loop.h, params.def, predict.def, predict.h, reg-stack.c, regmove.c, sched-deps.c, sched-int.h, sibcall.c, ssa.c, stringpool.c, toplev.c, tree.c, unroll.c: Fix spelling errors. From-SVN: r46595
2001-10-28 20:09:17 +00:00
expression to invoke if a mismatch occurs.
tweak comment From-SVN: r44942
2001-08-16 12:24:46 -04:00
??? We could use these semantics for calls to rethrow, too; if we can
see the surrounding catch clause, we know that the exception we're
rethrowing satisfies the "filter" of the catch type. */
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
expand_eh_region_end_allowed (allowed, failure)
tree allowed, failure;
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *region;
rtx around_label;
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! doing_eh (0))
return;
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
region = expand_eh_region_end ();
region->type = ERT_ALLOWED_EXCEPTIONS;
region->u.allowed.type_list = allowed;
region->label = gen_label_rtx ();
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (; allowed ; allowed = TREE_CHAIN (allowed))
add_type_for_runtime (TREE_VALUE (allowed));
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* We must emit the call to FAILURE here, so that if this function
throws a different exception, that it will be processed by the
correct region. */
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
around_label = gen_label_rtx ();
emit_jump (around_label);
emit_label (region->label);
expand_expr (failure, const0_rtx, VOIDmode, EXPAND_NORMAL);
except.c (expand_eh_region_end_allowed): Call do_pending_stack_adjust as necessary. * except.c (expand_eh_region_end_allowed): Call do_pending_stack_adjust as necessary. From-SVN: r43020
2001-06-08 16:19:45 +00:00
/* We must adjust the stack before we reach the AROUND_LABEL because
the call to FAILURE does not occur on all paths to the
AROUND_LABEL. */
do_pending_stack_adjust ();
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_label (around_label);
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* End an exception region for a must-not-throw filter. FAILURE is an
expression invoke if an uncaught exception propagates this far.
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
This is conceptually identical to expand_eh_region_end_allowed with
an empty allowed list (if you passed "std::terminate" instead of
"__cxa_call_unexpected"), but they are represented differently in
the C++ LSDA. */
flow.c (count_basic_blocks, [...]): A rethrow can occur outside of an EH region. * flow.c (count_basic_blocks, find_basic_blocks_1): A rethrow can occur outside of an EH region. * except.c: Correct comments about rethrow behavior. (rethrow_symbol_map): Do nothing if !flag_new_exceptions. * flow.c (make_edges): Always call make_eh_edge for calls. From-SVN: r32432
2000-03-08 16:30:17 -05:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
expand_eh_region_end_must_not_throw (failure)
tree failure;
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *region;
rtx around_label;
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! doing_eh (0))
return;
flow.c (count_basic_blocks, [...]): A rethrow can occur outside of an EH region. * flow.c (count_basic_blocks, find_basic_blocks_1): A rethrow can occur outside of an EH region. * except.c: Correct comments about rethrow behavior. (rethrow_symbol_map): Do nothing if !flag_new_exceptions. * flow.c (make_edges): Always call make_eh_edge for calls. From-SVN: r32432
2000-03-08 16:30:17 -05:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
region = expand_eh_region_end ();
region->type = ERT_MUST_NOT_THROW;
region->label = gen_label_rtx ();
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* We must emit the call to FAILURE here, so that if this function
throws a different exception, that it will be processed by the
correct region. */
flow.c (count_basic_blocks, [...]): A rethrow can occur outside of an EH region. * flow.c (count_basic_blocks, find_basic_blocks_1): A rethrow can occur outside of an EH region. * except.c: Correct comments about rethrow behavior. (rethrow_symbol_map): Do nothing if !flag_new_exceptions. * flow.c (make_edges): Always call make_eh_edge for calls. From-SVN: r32432
2000-03-08 16:30:17 -05:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
around_label = gen_label_rtx ();
emit_jump (around_label);
flow.c (count_basic_blocks, [...]): A rethrow can occur outside of an EH region. * flow.c (count_basic_blocks, find_basic_blocks_1): A rethrow can occur outside of an EH region. * except.c: Correct comments about rethrow behavior. (rethrow_symbol_map): Do nothing if !flag_new_exceptions. * flow.c (make_edges): Always call make_eh_edge for calls. From-SVN: r32432
2000-03-08 16:30:17 -05:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_label (region->label);
expand_expr (failure, const0_rtx, VOIDmode, EXPAND_NORMAL);
flow.c (count_basic_blocks, [...]): A rethrow can occur outside of an EH region. * flow.c (count_basic_blocks, find_basic_blocks_1): A rethrow can occur outside of an EH region. * except.c: Correct comments about rethrow behavior. (rethrow_symbol_map): Do nothing if !flag_new_exceptions. * flow.c (make_edges): Always call make_eh_edge for calls. From-SVN: r32432
2000-03-08 16:30:17 -05:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_label (around_label);
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* End an exception region for a throw. No handling goes on here,
but it's the easiest way for the front-end to indicate what type
is being thrown. */
flow.c (count_basic_blocks, [...]): A rethrow can occur outside of an EH region. * flow.c (count_basic_blocks, find_basic_blocks_1): A rethrow can occur outside of an EH region. * except.c: Correct comments about rethrow behavior. (rethrow_symbol_map): Do nothing if !flag_new_exceptions. * flow.c (make_edges): Always call make_eh_edge for calls. From-SVN: r32432
2000-03-08 16:30:17 -05:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
expand_eh_region_end_throw (type)
tree type;
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *region;
if (! doing_eh (0))
return;
region = expand_eh_region_end ();
region->type = ERT_THROW;
region->u.throw.type = type;
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* End a fixup region. Within this region the cleanups for the immediately
enclosing region are _not_ run. This is used for goto cleanup to avoid
destroying an object twice.
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
This would be an extraordinarily simple prospect, were it not for the
fact that we don't actually know what the immediately enclosing region
is. This surprising fact is because expand_cleanups is currently
generating a sequence that it will insert somewhere else. We collect
the proper notion of "enclosing" in convert_from_eh_region_ranges. */
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
expand_eh_region_end_fixup (handler)
tree handler;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *fixup;
if (! doing_eh (0))
return;
fixup = expand_eh_region_end ();
fixup->type = ERT_FIXUP;
fixup->u.fixup.cleanup_exp = handler;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
Makefile.in (calls.o): Depend on except.h. * Makefile.in (calls.o): Depend on except.h. * calls.c: Include except.h. (emit_call_1): Call note_eh_region_may_contain_throw if appropriate. * except.c (eh_region): Add may_contain_throw. (expand_eh_region_end_cleanup): Do not include handler code when it cannot be reached. (note_eh_region_may_contain_throw): New function. * except.h (note_eh_region_may_contain_throw): New function. * call.c (build_over_call): Use build_cxx_call. (build_cxx_call): New method, split out of build_over_call. * cp-tree.h (language_function): Add can_throw. (build_cxx_call): Declare it. * decl.c (finish_function): If a function does not contain any calls to functions that can throw an exception, indicate that fact. * decl2.c (mark_used): Do not defer the instantiation of functions, if the current function does not throw. * optimize.c (maybe_clone_body): Copy TREE_NOTHROW to the clones. * pt.c (instantiate_decl): Make sure import_export_decl is called before emitting things. * rtti.c (throw_bad_cast): Use build_cxx_call. (build_dynamic_cast_1): Likewise. * typeck.c (build_function_call): Likewise. * g++.dg/template/recurse.C: Adjust location of error messages. From-SVN: r65929
2003-04-22 05:44:12 +00:00
/* Note that the current EH region (if any) may contain a throw, or a
call to a function which itself may contain a throw. */
void
note_eh_region_may_contain_throw ()
{
struct eh_region *region;
region = cfun->eh->cur_region;
while (region && !region->may_contain_throw)
{
region->may_contain_throw = 1;
region = region->outer;
}
}
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
/* Return an rtl expression for a pointer to the exception object
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
within a handler. */
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
rtx
except.c (get_exception_pointer, [...]): Take a struct function. * except.c (get_exception_pointer, get_exception_filter): Take a struct function. Update all callers. * except.h (get_exception_pointer): Update declaration. * expr.c (expand_expr): Update get_exception_pointer call. * integrate.c (expand_inline_function): Remap the exception pointer from callee to caller. From-SVN: r43060
2001-06-08 15:57:23 -07:00
get_exception_pointer (fun)
struct function *fun;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
except.c (get_exception_pointer, [...]): Take a struct function. * except.c (get_exception_pointer, get_exception_filter): Take a struct function. Update all callers. * except.h (get_exception_pointer): Update declaration. * expr.c (expand_expr): Update get_exception_pointer call. * integrate.c (expand_inline_function): Remap the exception pointer from callee to caller. From-SVN: r43060
2001-06-08 15:57:23 -07:00
rtx exc_ptr = fun->eh->exc_ptr;
if (fun == cfun && ! exc_ptr)
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
{
except.c (expand_eh_region_end_cleanup): Change exception pointer from Pmode to ptr_mode. * gcc/except.c (expand_eh_region_end_cleanup): Change exception pointer from Pmode to ptr_mode. (get_exception_pointer): Ditto. (connect_post_landing_pads): Ditto. (dw2_build_landing_pads): Ditto. From-SVN: r55341
2002-07-09 15:28:22 +00:00
exc_ptr = gen_reg_rtx (ptr_mode);
except.c (get_exception_pointer, [...]): Take a struct function. * except.c (get_exception_pointer, get_exception_filter): Take a struct function. Update all callers. * except.h (get_exception_pointer): Update declaration. * expr.c (expand_expr): Update get_exception_pointer call. * integrate.c (expand_inline_function): Remap the exception pointer from callee to caller. From-SVN: r43060
2001-06-08 15:57:23 -07:00
fun->eh->exc_ptr = exc_ptr;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
}
return exc_ptr;
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
/* Return an rtl expression for the exception dispatch filter
within a handler. */
static rtx
except.c (get_exception_pointer, [...]): Take a struct function. * except.c (get_exception_pointer, get_exception_filter): Take a struct function. Update all callers. * except.h (get_exception_pointer): Update declaration. * expr.c (expand_expr): Update get_exception_pointer call. * integrate.c (expand_inline_function): Remap the exception pointer from callee to caller. From-SVN: r43060
2001-06-08 15:57:23 -07:00
get_exception_filter (fun)
struct function *fun;
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
{
except.c (get_exception_pointer, [...]): Take a struct function. * except.c (get_exception_pointer, get_exception_filter): Take a struct function. Update all callers. * except.h (get_exception_pointer): Update declaration. * expr.c (expand_expr): Update get_exception_pointer call. * integrate.c (expand_inline_function): Remap the exception pointer from callee to caller. From-SVN: r43060
2001-06-08 15:57:23 -07:00
rtx filter = fun->eh->filter;
if (fun == cfun && ! filter)
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
{
* except.c (get_exception_filter): word_mode, not Pmode. From-SVN: r41616
2001-04-26 19:32:49 -04:00
filter = gen_reg_rtx (word_mode);
except.c (get_exception_pointer, [...]): Take a struct function. * except.c (get_exception_pointer, get_exception_filter): Take a struct function. Update all callers. * except.h (get_exception_pointer): Update declaration. * expr.c (expand_expr): Update get_exception_pointer call. * integrate.c (expand_inline_function): Remap the exception pointer from callee to caller. From-SVN: r43060
2001-06-08 15:57:23 -07:00
fun->eh->filter = filter;
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
}
return filter;
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* This section is for the exception handling specific optimization pass. */
[multiple changes] Thu Dec 11 20:42:18 1997 Teemu Torma <tot@trema.com> Thread-safe EH support for pthreads, DCE threads and Solaris threads. * integrate.c (expand_inline_function): If the inline fn uses eh context, make sure that the current fn has one. * toplev.c (rest_of_compilation): Call emit_eh_context. * except.c (use_eh_context): New fn. (get_eh_context_once): New fn. (call_get_eh_context): New fn. (emit_eh_context): New fn. (get_eh_context): Call either get_eh_context_once or call_get_eh_context, depending on what we have. (get_dynamic_handler_chain): Call get_eh_context_once. * except.h: Prototypes for fns above. * optabs.c (get_eh_context_libfunc): Removed. (init_optabs): Don't initialize it. * expr.h (get_eh_context_libfunc): Removed. * rtl.h, rtl.c: New reg_note REG_EH_CONTEXT. * config/pa/pa.h (CPP_SPEC): Support for -threads. * config/pa/pa-hpux10.h (LIB_SPEC): Ditto. * config/pa/t-pa (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): New multilib for -threads. * config/sparc/t-sol2: Added multilibs for -threads and made -pthreads alias to it. * config/sparc/sol2.h (CPP_SPEC, LIB_SPEC): Added -threads and -pthreads options. * libgcc-thr.h: New file. * libgcc2.c: (__get_cpp_eh_context): Removed. (struct cpp_eh_context): Removed. (struct eh_context): Replaced cpp_eh_context with generic language specific pointer. (__get_eh_info): New function. (__throw): Check eh_context::info. (__sjthrow): Ditto. * libgcc2.c: Include libgcc-thr.h. (new_eh_context, __get_eh_context, eh_pthread_initialize, eh_context_initialize, eh_context_static, eh_context_specific, eh_context_free): New functions. (get_eh_context, eh_context_key): New variables. (__sjthrow, __sjpopnthrow, __eh_pcnthrow, __throw): Use get_eh_context to get the context. (longjmp): Move the declaration inside #ifdef DONT_USE_BUILTIN_SETJMP. * frame.c: Include libgcc-thr.h. (object_mutex): Mutex to protect the object list. (find_fde, __register_frame, __register_frame_table, __deregister_frame): Hold the lock while accessing objects. * except.h (get_eh_context): Declare. * except.c (current_function_ehc): Define. (current_function_dhc, current_function_dcc): Removed. (get_eh_context): New function. (get_dynamic_handler_chain): Use get_eh_context. (get_saved_pc_ref): Ditto. (get_dynamic_cleanup_chain): Removed references to current_function_dcc. (save_eh_status, restore_eh_status): Save and restore current_function_ehc instead. * optabs.c (get_eh_context_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_eh_context_libfunc. * function.h (struct function): Replaced dhc and dcc with ehc. * except.c (get_saved_pc_ref): New functions. (eh_saved_pc_rtx, eh_saved_pc): Deleted. (expand_internal_throw_indirect): Use get_saved_pc_ref() instead of eh_saved_pc. (end_eh_unwinder): Likewise. (init_eh): Remove initialization of eh_saved_pc. * optabs.c (get_saved_pc_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_saved_pc_libfunc. * except.h (eh_saved_pc_rtx): Deleted. (get_saved_pc_ref): Declared. From Scott Snyder <snyder@d0sgif.fnal.gov>: * libgcc2.c (__get_saved_pc): New. (__eh_type, __eh_pc): Deleted. (__eh_pcnthrow): Use __get_saved_pc() instead of __eh_pc. (__get_dynamic_handler_chain): Move __dynamic_handler_chain inside this fcn. cp/: Thu Dec 11 20:43:33 1997 Teemu Torma <tot@trema.com> * decl.c (ptr_ptr_type_node): Define. (init_decl_processing): Initialize it. * cp-tree.h: Declare it. * exception.cc (__cp_exception_info): Use __get_eh_info. (__cp_push_exception): Ditto. (__cp_pop_exception): Ditto. From Scott Snyder <snyder@d0sgif.fnal.gov>: * except.c (expand_builtin_throw): Use get_saved_pc_ref instead of saved_pc. (init_exception_processing): Removed saved_pc initialization. From-SVN: r17052
1997-12-12 04:53:20 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Random access the exception region tree. It's just as simple to
collect the regions this way as in expand_eh_region_start, but
without having to realloc memory. */
[multiple changes] Thu Dec 11 20:42:18 1997 Teemu Torma <tot@trema.com> Thread-safe EH support for pthreads, DCE threads and Solaris threads. * integrate.c (expand_inline_function): If the inline fn uses eh context, make sure that the current fn has one. * toplev.c (rest_of_compilation): Call emit_eh_context. * except.c (use_eh_context): New fn. (get_eh_context_once): New fn. (call_get_eh_context): New fn. (emit_eh_context): New fn. (get_eh_context): Call either get_eh_context_once or call_get_eh_context, depending on what we have. (get_dynamic_handler_chain): Call get_eh_context_once. * except.h: Prototypes for fns above. * optabs.c (get_eh_context_libfunc): Removed. (init_optabs): Don't initialize it. * expr.h (get_eh_context_libfunc): Removed. * rtl.h, rtl.c: New reg_note REG_EH_CONTEXT. * config/pa/pa.h (CPP_SPEC): Support for -threads. * config/pa/pa-hpux10.h (LIB_SPEC): Ditto. * config/pa/t-pa (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): New multilib for -threads. * config/sparc/t-sol2: Added multilibs for -threads and made -pthreads alias to it. * config/sparc/sol2.h (CPP_SPEC, LIB_SPEC): Added -threads and -pthreads options. * libgcc-thr.h: New file. * libgcc2.c: (__get_cpp_eh_context): Removed. (struct cpp_eh_context): Removed. (struct eh_context): Replaced cpp_eh_context with generic language specific pointer. (__get_eh_info): New function. (__throw): Check eh_context::info. (__sjthrow): Ditto. * libgcc2.c: Include libgcc-thr.h. (new_eh_context, __get_eh_context, eh_pthread_initialize, eh_context_initialize, eh_context_static, eh_context_specific, eh_context_free): New functions. (get_eh_context, eh_context_key): New variables. (__sjthrow, __sjpopnthrow, __eh_pcnthrow, __throw): Use get_eh_context to get the context. (longjmp): Move the declaration inside #ifdef DONT_USE_BUILTIN_SETJMP. * frame.c: Include libgcc-thr.h. (object_mutex): Mutex to protect the object list. (find_fde, __register_frame, __register_frame_table, __deregister_frame): Hold the lock while accessing objects. * except.h (get_eh_context): Declare. * except.c (current_function_ehc): Define. (current_function_dhc, current_function_dcc): Removed. (get_eh_context): New function. (get_dynamic_handler_chain): Use get_eh_context. (get_saved_pc_ref): Ditto. (get_dynamic_cleanup_chain): Removed references to current_function_dcc. (save_eh_status, restore_eh_status): Save and restore current_function_ehc instead. * optabs.c (get_eh_context_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_eh_context_libfunc. * function.h (struct function): Replaced dhc and dcc with ehc. * except.c (get_saved_pc_ref): New functions. (eh_saved_pc_rtx, eh_saved_pc): Deleted. (expand_internal_throw_indirect): Use get_saved_pc_ref() instead of eh_saved_pc. (end_eh_unwinder): Likewise. (init_eh): Remove initialization of eh_saved_pc. * optabs.c (get_saved_pc_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_saved_pc_libfunc. * except.h (eh_saved_pc_rtx): Deleted. (get_saved_pc_ref): Declared. From Scott Snyder <snyder@d0sgif.fnal.gov>: * libgcc2.c (__get_saved_pc): New. (__eh_type, __eh_pc): Deleted. (__eh_pcnthrow): Use __get_saved_pc() instead of __eh_pc. (__get_dynamic_handler_chain): Move __dynamic_handler_chain inside this fcn. cp/: Thu Dec 11 20:43:33 1997 Teemu Torma <tot@trema.com> * decl.c (ptr_ptr_type_node): Define. (init_decl_processing): Initialize it. * cp-tree.h: Declare it. * exception.cc (__cp_exception_info): Use __get_eh_info. (__cp_push_exception): Ditto. (__cp_pop_exception): Ditto. From Scott Snyder <snyder@d0sgif.fnal.gov>: * except.c (expand_builtin_throw): Use get_saved_pc_ref instead of saved_pc. (init_exception_processing): Removed saved_pc initialization. From-SVN: r17052
1997-12-12 04:53:20 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static void
collect_eh_region_array ()
[multiple changes] Thu Dec 11 20:42:18 1997 Teemu Torma <tot@trema.com> Thread-safe EH support for pthreads, DCE threads and Solaris threads. * integrate.c (expand_inline_function): If the inline fn uses eh context, make sure that the current fn has one. * toplev.c (rest_of_compilation): Call emit_eh_context. * except.c (use_eh_context): New fn. (get_eh_context_once): New fn. (call_get_eh_context): New fn. (emit_eh_context): New fn. (get_eh_context): Call either get_eh_context_once or call_get_eh_context, depending on what we have. (get_dynamic_handler_chain): Call get_eh_context_once. * except.h: Prototypes for fns above. * optabs.c (get_eh_context_libfunc): Removed. (init_optabs): Don't initialize it. * expr.h (get_eh_context_libfunc): Removed. * rtl.h, rtl.c: New reg_note REG_EH_CONTEXT. * config/pa/pa.h (CPP_SPEC): Support for -threads. * config/pa/pa-hpux10.h (LIB_SPEC): Ditto. * config/pa/t-pa (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): New multilib for -threads. * config/sparc/t-sol2: Added multilibs for -threads and made -pthreads alias to it. * config/sparc/sol2.h (CPP_SPEC, LIB_SPEC): Added -threads and -pthreads options. * libgcc-thr.h: New file. * libgcc2.c: (__get_cpp_eh_context): Removed. (struct cpp_eh_context): Removed. (struct eh_context): Replaced cpp_eh_context with generic language specific pointer. (__get_eh_info): New function. (__throw): Check eh_context::info. (__sjthrow): Ditto. * libgcc2.c: Include libgcc-thr.h. (new_eh_context, __get_eh_context, eh_pthread_initialize, eh_context_initialize, eh_context_static, eh_context_specific, eh_context_free): New functions. (get_eh_context, eh_context_key): New variables. (__sjthrow, __sjpopnthrow, __eh_pcnthrow, __throw): Use get_eh_context to get the context. (longjmp): Move the declaration inside #ifdef DONT_USE_BUILTIN_SETJMP. * frame.c: Include libgcc-thr.h. (object_mutex): Mutex to protect the object list. (find_fde, __register_frame, __register_frame_table, __deregister_frame): Hold the lock while accessing objects. * except.h (get_eh_context): Declare. * except.c (current_function_ehc): Define. (current_function_dhc, current_function_dcc): Removed. (get_eh_context): New function. (get_dynamic_handler_chain): Use get_eh_context. (get_saved_pc_ref): Ditto. (get_dynamic_cleanup_chain): Removed references to current_function_dcc. (save_eh_status, restore_eh_status): Save and restore current_function_ehc instead. * optabs.c (get_eh_context_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_eh_context_libfunc. * function.h (struct function): Replaced dhc and dcc with ehc. * except.c (get_saved_pc_ref): New functions. (eh_saved_pc_rtx, eh_saved_pc): Deleted. (expand_internal_throw_indirect): Use get_saved_pc_ref() instead of eh_saved_pc. (end_eh_unwinder): Likewise. (init_eh): Remove initialization of eh_saved_pc. * optabs.c (get_saved_pc_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_saved_pc_libfunc. * except.h (eh_saved_pc_rtx): Deleted. (get_saved_pc_ref): Declared. From Scott Snyder <snyder@d0sgif.fnal.gov>: * libgcc2.c (__get_saved_pc): New. (__eh_type, __eh_pc): Deleted. (__eh_pcnthrow): Use __get_saved_pc() instead of __eh_pc. (__get_dynamic_handler_chain): Move __dynamic_handler_chain inside this fcn. cp/: Thu Dec 11 20:43:33 1997 Teemu Torma <tot@trema.com> * decl.c (ptr_ptr_type_node): Define. (init_decl_processing): Initialize it. * cp-tree.h: Declare it. * exception.cc (__cp_exception_info): Use __get_eh_info. (__cp_push_exception): Ditto. (__cp_pop_exception): Ditto. From Scott Snyder <snyder@d0sgif.fnal.gov>: * except.c (expand_builtin_throw): Use get_saved_pc_ref instead of saved_pc. (init_exception_processing): Removed saved_pc initialization. From-SVN: r17052
1997-12-12 04:53:20 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region **array, *i;
[multiple changes] Thu Dec 11 20:42:18 1997 Teemu Torma <tot@trema.com> Thread-safe EH support for pthreads, DCE threads and Solaris threads. * integrate.c (expand_inline_function): If the inline fn uses eh context, make sure that the current fn has one. * toplev.c (rest_of_compilation): Call emit_eh_context. * except.c (use_eh_context): New fn. (get_eh_context_once): New fn. (call_get_eh_context): New fn. (emit_eh_context): New fn. (get_eh_context): Call either get_eh_context_once or call_get_eh_context, depending on what we have. (get_dynamic_handler_chain): Call get_eh_context_once. * except.h: Prototypes for fns above. * optabs.c (get_eh_context_libfunc): Removed. (init_optabs): Don't initialize it. * expr.h (get_eh_context_libfunc): Removed. * rtl.h, rtl.c: New reg_note REG_EH_CONTEXT. * config/pa/pa.h (CPP_SPEC): Support for -threads. * config/pa/pa-hpux10.h (LIB_SPEC): Ditto. * config/pa/t-pa (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): New multilib for -threads. * config/sparc/t-sol2: Added multilibs for -threads and made -pthreads alias to it. * config/sparc/sol2.h (CPP_SPEC, LIB_SPEC): Added -threads and -pthreads options. * libgcc-thr.h: New file. * libgcc2.c: (__get_cpp_eh_context): Removed. (struct cpp_eh_context): Removed. (struct eh_context): Replaced cpp_eh_context with generic language specific pointer. (__get_eh_info): New function. (__throw): Check eh_context::info. (__sjthrow): Ditto. * libgcc2.c: Include libgcc-thr.h. (new_eh_context, __get_eh_context, eh_pthread_initialize, eh_context_initialize, eh_context_static, eh_context_specific, eh_context_free): New functions. (get_eh_context, eh_context_key): New variables. (__sjthrow, __sjpopnthrow, __eh_pcnthrow, __throw): Use get_eh_context to get the context. (longjmp): Move the declaration inside #ifdef DONT_USE_BUILTIN_SETJMP. * frame.c: Include libgcc-thr.h. (object_mutex): Mutex to protect the object list. (find_fde, __register_frame, __register_frame_table, __deregister_frame): Hold the lock while accessing objects. * except.h (get_eh_context): Declare. * except.c (current_function_ehc): Define. (current_function_dhc, current_function_dcc): Removed. (get_eh_context): New function. (get_dynamic_handler_chain): Use get_eh_context. (get_saved_pc_ref): Ditto. (get_dynamic_cleanup_chain): Removed references to current_function_dcc. (save_eh_status, restore_eh_status): Save and restore current_function_ehc instead. * optabs.c (get_eh_context_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_eh_context_libfunc. * function.h (struct function): Replaced dhc and dcc with ehc. * except.c (get_saved_pc_ref): New functions. (eh_saved_pc_rtx, eh_saved_pc): Deleted. (expand_internal_throw_indirect): Use get_saved_pc_ref() instead of eh_saved_pc. (end_eh_unwinder): Likewise. (init_eh): Remove initialization of eh_saved_pc. * optabs.c (get_saved_pc_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_saved_pc_libfunc. * except.h (eh_saved_pc_rtx): Deleted. (get_saved_pc_ref): Declared. From Scott Snyder <snyder@d0sgif.fnal.gov>: * libgcc2.c (__get_saved_pc): New. (__eh_type, __eh_pc): Deleted. (__eh_pcnthrow): Use __get_saved_pc() instead of __eh_pc. (__get_dynamic_handler_chain): Move __dynamic_handler_chain inside this fcn. cp/: Thu Dec 11 20:43:33 1997 Teemu Torma <tot@trema.com> * decl.c (ptr_ptr_type_node): Define. (init_decl_processing): Initialize it. * cp-tree.h: Declare it. * exception.cc (__cp_exception_info): Use __get_eh_info. (__cp_push_exception): Ditto. (__cp_pop_exception): Ditto. From Scott Snyder <snyder@d0sgif.fnal.gov>: * except.c (expand_builtin_throw): Use get_saved_pc_ref instead of saved_pc. (init_exception_processing): Removed saved_pc initialization. From-SVN: r17052
1997-12-12 04:53:20 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
i = cfun->eh->region_tree;
if (! i)
return;
[multiple changes] Thu Dec 11 20:42:18 1997 Teemu Torma <tot@trema.com> Thread-safe EH support for pthreads, DCE threads and Solaris threads. * integrate.c (expand_inline_function): If the inline fn uses eh context, make sure that the current fn has one. * toplev.c (rest_of_compilation): Call emit_eh_context. * except.c (use_eh_context): New fn. (get_eh_context_once): New fn. (call_get_eh_context): New fn. (emit_eh_context): New fn. (get_eh_context): Call either get_eh_context_once or call_get_eh_context, depending on what we have. (get_dynamic_handler_chain): Call get_eh_context_once. * except.h: Prototypes for fns above. * optabs.c (get_eh_context_libfunc): Removed. (init_optabs): Don't initialize it. * expr.h (get_eh_context_libfunc): Removed. * rtl.h, rtl.c: New reg_note REG_EH_CONTEXT. * config/pa/pa.h (CPP_SPEC): Support for -threads. * config/pa/pa-hpux10.h (LIB_SPEC): Ditto. * config/pa/t-pa (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): New multilib for -threads. * config/sparc/t-sol2: Added multilibs for -threads and made -pthreads alias to it. * config/sparc/sol2.h (CPP_SPEC, LIB_SPEC): Added -threads and -pthreads options. * libgcc-thr.h: New file. * libgcc2.c: (__get_cpp_eh_context): Removed. (struct cpp_eh_context): Removed. (struct eh_context): Replaced cpp_eh_context with generic language specific pointer. (__get_eh_info): New function. (__throw): Check eh_context::info. (__sjthrow): Ditto. * libgcc2.c: Include libgcc-thr.h. (new_eh_context, __get_eh_context, eh_pthread_initialize, eh_context_initialize, eh_context_static, eh_context_specific, eh_context_free): New functions. (get_eh_context, eh_context_key): New variables. (__sjthrow, __sjpopnthrow, __eh_pcnthrow, __throw): Use get_eh_context to get the context. (longjmp): Move the declaration inside #ifdef DONT_USE_BUILTIN_SETJMP. * frame.c: Include libgcc-thr.h. (object_mutex): Mutex to protect the object list. (find_fde, __register_frame, __register_frame_table, __deregister_frame): Hold the lock while accessing objects. * except.h (get_eh_context): Declare. * except.c (current_function_ehc): Define. (current_function_dhc, current_function_dcc): Removed. (get_eh_context): New function. (get_dynamic_handler_chain): Use get_eh_context. (get_saved_pc_ref): Ditto. (get_dynamic_cleanup_chain): Removed references to current_function_dcc. (save_eh_status, restore_eh_status): Save and restore current_function_ehc instead. * optabs.c (get_eh_context_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_eh_context_libfunc. * function.h (struct function): Replaced dhc and dcc with ehc. * except.c (get_saved_pc_ref): New functions. (eh_saved_pc_rtx, eh_saved_pc): Deleted. (expand_internal_throw_indirect): Use get_saved_pc_ref() instead of eh_saved_pc. (end_eh_unwinder): Likewise. (init_eh): Remove initialization of eh_saved_pc. * optabs.c (get_saved_pc_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_saved_pc_libfunc. * except.h (eh_saved_pc_rtx): Deleted. (get_saved_pc_ref): Declared. From Scott Snyder <snyder@d0sgif.fnal.gov>: * libgcc2.c (__get_saved_pc): New. (__eh_type, __eh_pc): Deleted. (__eh_pcnthrow): Use __get_saved_pc() instead of __eh_pc. (__get_dynamic_handler_chain): Move __dynamic_handler_chain inside this fcn. cp/: Thu Dec 11 20:43:33 1997 Teemu Torma <tot@trema.com> * decl.c (ptr_ptr_type_node): Define. (init_decl_processing): Initialize it. * cp-tree.h: Declare it. * exception.cc (__cp_exception_info): Use __get_eh_info. (__cp_push_exception): Ditto. (__cp_pop_exception): Ditto. From Scott Snyder <snyder@d0sgif.fnal.gov>: * except.c (expand_builtin_throw): Use get_saved_pc_ref instead of saved_pc. (init_exception_processing): Removed saved_pc initialization. From-SVN: r17052
1997-12-12 04:53:20 +00:00
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
array = ggc_alloc_cleared ((cfun->eh->last_region_number + 1)
* sizeof (*array));
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
cfun->eh->region_array = array;
[multiple changes] Thu Dec 11 20:42:18 1997 Teemu Torma <tot@trema.com> Thread-safe EH support for pthreads, DCE threads and Solaris threads. * integrate.c (expand_inline_function): If the inline fn uses eh context, make sure that the current fn has one. * toplev.c (rest_of_compilation): Call emit_eh_context. * except.c (use_eh_context): New fn. (get_eh_context_once): New fn. (call_get_eh_context): New fn. (emit_eh_context): New fn. (get_eh_context): Call either get_eh_context_once or call_get_eh_context, depending on what we have. (get_dynamic_handler_chain): Call get_eh_context_once. * except.h: Prototypes for fns above. * optabs.c (get_eh_context_libfunc): Removed. (init_optabs): Don't initialize it. * expr.h (get_eh_context_libfunc): Removed. * rtl.h, rtl.c: New reg_note REG_EH_CONTEXT. * config/pa/pa.h (CPP_SPEC): Support for -threads. * config/pa/pa-hpux10.h (LIB_SPEC): Ditto. * config/pa/t-pa (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): New multilib for -threads. * config/sparc/t-sol2: Added multilibs for -threads and made -pthreads alias to it. * config/sparc/sol2.h (CPP_SPEC, LIB_SPEC): Added -threads and -pthreads options. * libgcc-thr.h: New file. * libgcc2.c: (__get_cpp_eh_context): Removed. (struct cpp_eh_context): Removed. (struct eh_context): Replaced cpp_eh_context with generic language specific pointer. (__get_eh_info): New function. (__throw): Check eh_context::info. (__sjthrow): Ditto. * libgcc2.c: Include libgcc-thr.h. (new_eh_context, __get_eh_context, eh_pthread_initialize, eh_context_initialize, eh_context_static, eh_context_specific, eh_context_free): New functions. (get_eh_context, eh_context_key): New variables. (__sjthrow, __sjpopnthrow, __eh_pcnthrow, __throw): Use get_eh_context to get the context. (longjmp): Move the declaration inside #ifdef DONT_USE_BUILTIN_SETJMP. * frame.c: Include libgcc-thr.h. (object_mutex): Mutex to protect the object list. (find_fde, __register_frame, __register_frame_table, __deregister_frame): Hold the lock while accessing objects. * except.h (get_eh_context): Declare. * except.c (current_function_ehc): Define. (current_function_dhc, current_function_dcc): Removed. (get_eh_context): New function. (get_dynamic_handler_chain): Use get_eh_context. (get_saved_pc_ref): Ditto. (get_dynamic_cleanup_chain): Removed references to current_function_dcc. (save_eh_status, restore_eh_status): Save and restore current_function_ehc instead. * optabs.c (get_eh_context_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_eh_context_libfunc. * function.h (struct function): Replaced dhc and dcc with ehc. * except.c (get_saved_pc_ref): New functions. (eh_saved_pc_rtx, eh_saved_pc): Deleted. (expand_internal_throw_indirect): Use get_saved_pc_ref() instead of eh_saved_pc. (end_eh_unwinder): Likewise. (init_eh): Remove initialization of eh_saved_pc. * optabs.c (get_saved_pc_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_saved_pc_libfunc. * except.h (eh_saved_pc_rtx): Deleted. (get_saved_pc_ref): Declared. From Scott Snyder <snyder@d0sgif.fnal.gov>: * libgcc2.c (__get_saved_pc): New. (__eh_type, __eh_pc): Deleted. (__eh_pcnthrow): Use __get_saved_pc() instead of __eh_pc. (__get_dynamic_handler_chain): Move __dynamic_handler_chain inside this fcn. cp/: Thu Dec 11 20:43:33 1997 Teemu Torma <tot@trema.com> * decl.c (ptr_ptr_type_node): Define. (init_decl_processing): Initialize it. * cp-tree.h: Declare it. * exception.cc (__cp_exception_info): Use __get_eh_info. (__cp_push_exception): Ditto. (__cp_pop_exception): Ditto. From Scott Snyder <snyder@d0sgif.fnal.gov>: * except.c (expand_builtin_throw): Use get_saved_pc_ref instead of saved_pc. (init_exception_processing): Removed saved_pc initialization. From-SVN: r17052
1997-12-12 04:53:20 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
while (1)
{
array[i->region_number] = i;
/* If there are sub-regions, process them. */
if (i->inner)
i = i->inner;
/* If there are peers, process them. */
else if (i->next_peer)
i = i->next_peer;
/* Otherwise, step back up the tree to the next peer. */
else
{
do {
i = i->outer;
if (i == NULL)
return;
} while (i->next_peer == NULL);
i = i->next_peer;
}
}
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static void
resolve_fixup_regions ()
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int i, j, n = cfun->eh->last_region_number;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (i = 1; i <= n; ++i)
{
struct eh_region *fixup = cfun->eh->region_array[i];
except.c (resolve_fixup_regions): Initialise "cleanup". 2001-06-18 Ben Elliston <bje@redhat.com> * except.c (resolve_fixup_regions): Initialise "cleanup". From-SVN: r43432
2001-06-18 06:43:51 +00:00
struct eh_region *cleanup = 0;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! fixup || fixup->type != ERT_FIXUP)
continue;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (j = 1; j <= n; ++j)
{
cleanup = cfun->eh->region_array[j];
except.c (resolve_fixup_regions): Avoid dereferencing null pointer to region... * except.c (resolve_fixup_regions): Avoid dereferencing null pointer to region, possible after integration of function with unreachable regions that were optimized away. From-SVN: r65631
2003-04-15 14:37:58 +02:00
if (cleanup && cleanup->type == ERT_CLEANUP
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
&& cleanup->u.cleanup.exp == fixup->u.fixup.cleanup_exp)
break;
}
if (j > n)
abort ();
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
fixup->u.fixup.real_region = cleanup->outer;
}
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Now that we've discovered what region actually encloses a fixup,
we can shuffle pointers and remove them from the tree. */
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
static void
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
remove_fixup_regions ()
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int i;
except.c (remove_fixup_regions): Adjust REG_EH_REGION notes to the parent of the fixup region. * except.c (remove_fixup_regions): Adjust REG_EH_REGION notes to the parent of the fixup region. From-SVN: r41867
2001-05-05 09:38:25 -07:00
rtx insn, note;
struct eh_region *fixup;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
except.c (remove_fixup_regions): Adjust REG_EH_REGION notes to the parent of the fixup region. * except.c (remove_fixup_regions): Adjust REG_EH_REGION notes to the parent of the fixup region. From-SVN: r41867
2001-05-05 09:38:25 -07:00
/* Walk the insn chain and adjust the REG_EH_REGION numbers
for instructions referencing fixup regions. This is only
strictly necessary for fixup regions with no parent, but
doesn't hurt to do it for all regions. */
for (insn = get_insns(); insn ; insn = NEXT_INSN (insn))
if (INSN_P (insn)
&& (note = find_reg_note (insn, REG_EH_REGION, NULL))
&& INTVAL (XEXP (note, 0)) > 0
&& (fixup = cfun->eh->region_array[INTVAL (XEXP (note, 0))])
&& fixup->type == ERT_FIXUP)
{
if (fixup->u.fixup.real_region)
* except.c (remove_fixup_regions): Fix typo. From-SVN: r44727
2001-08-08 21:22:30 +00:00
XEXP (note, 0) = GEN_INT (fixup->u.fixup.real_region->region_number);
except.c (remove_fixup_regions): Adjust REG_EH_REGION notes to the parent of the fixup region. * except.c (remove_fixup_regions): Adjust REG_EH_REGION notes to the parent of the fixup region. From-SVN: r41867
2001-05-05 09:38:25 -07:00
else
remove_note (insn, note);
}
/* Remove the fixup regions from the tree. */
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (i = cfun->eh->last_region_number; i > 0; --i)
{
except.c (remove_fixup_regions): Adjust REG_EH_REGION notes to the parent of the fixup region. * except.c (remove_fixup_regions): Adjust REG_EH_REGION notes to the parent of the fixup region. From-SVN: r41867
2001-05-05 09:38:25 -07:00
fixup = cfun->eh->region_array[i];
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! fixup)
continue;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Allow GC to maybe free some memory. */
if (fixup->type == ERT_CLEANUP)
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
fixup->u.cleanup.exp = NULL_TREE;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (fixup->type != ERT_FIXUP)
continue;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (fixup->inner)
{
struct eh_region *parent, *p, **pp;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
parent = fixup->u.fixup.real_region;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Fix up the children's parent pointers; find the end of
the list. */
for (p = fixup->inner; ; p = p->next_peer)
{
p->outer = parent;
if (! p->next_peer)
break;
}
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* In the tree of cleanups, only outer-inner ordering matters.
So link the children back in anywhere at the correct level. */
if (parent)
pp = &parent->inner;
else
pp = &cfun->eh->region_tree;
p->next_peer = *pp;
*pp = fixup->inner;
fixup->inner = NULL;
}
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
remove_eh_handler (fixup);
}
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
}
except.c (remove_unreachable_regions): New. * except.c (remove_unreachable_regions): New. (free_eh_status): Clear exception_handler_labels. (convert_from_eh_region_ranges): Call remove_unreachable_regions. (find_exception_handler_labels): Don't add the same label more than once. (remove_exception_handler_label): Don't die if find_exception_handler_labels hasn't been called for the current function yet. From-SVN: r48845
2002-01-14 22:06:26 +01:00
/* Remove all regions whose labels are not reachable from insns. */
static void
remove_unreachable_regions (insns)
rtx insns;
{
int i, *uid_region_num;
bool *reachable;
struct eh_region *r;
rtx insn;
uid_region_num = xcalloc (get_max_uid (), sizeof(int));
reachable = xcalloc (cfun->eh->last_region_number + 1, sizeof(bool));
for (i = cfun->eh->last_region_number; i > 0; --i)
{
r = cfun->eh->region_array[i];
if (!r || r->region_number != i)
continue;
if (r->resume)
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
{
except.c (remove_unreachable_regions): New. * except.c (remove_unreachable_regions): New. (free_eh_status): Clear exception_handler_labels. (convert_from_eh_region_ranges): Call remove_unreachable_regions. (find_exception_handler_labels): Don't add the same label more than once. (remove_exception_handler_label): Don't die if find_exception_handler_labels hasn't been called for the current function yet. From-SVN: r48845
2002-01-14 22:06:26 +01:00
if (uid_region_num[INSN_UID (r->resume)])
abort ();
uid_region_num[INSN_UID (r->resume)] = i;
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
}
except.c (remove_unreachable_regions): New. * except.c (remove_unreachable_regions): New. (free_eh_status): Clear exception_handler_labels. (convert_from_eh_region_ranges): Call remove_unreachable_regions. (find_exception_handler_labels): Don't add the same label more than once. (remove_exception_handler_label): Don't die if find_exception_handler_labels hasn't been called for the current function yet. From-SVN: r48845
2002-01-14 22:06:26 +01:00
if (r->label)
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
{
except.c (remove_unreachable_regions): New. * except.c (remove_unreachable_regions): New. (free_eh_status): Clear exception_handler_labels. (convert_from_eh_region_ranges): Call remove_unreachable_regions. (find_exception_handler_labels): Don't add the same label more than once. (remove_exception_handler_label): Don't die if find_exception_handler_labels hasn't been called for the current function yet. From-SVN: r48845
2002-01-14 22:06:26 +01:00
if (uid_region_num[INSN_UID (r->label)])
abort ();
uid_region_num[INSN_UID (r->label)] = i;
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
}
except.c (remove_unreachable_regions): New. * except.c (remove_unreachable_regions): New. (free_eh_status): Clear exception_handler_labels. (convert_from_eh_region_ranges): Call remove_unreachable_regions. (find_exception_handler_labels): Don't add the same label more than once. (remove_exception_handler_label): Don't die if find_exception_handler_labels hasn't been called for the current function yet. From-SVN: r48845
2002-01-14 22:06:26 +01:00
if (r->type == ERT_TRY && r->u.try.continue_label)
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
{
except.c (remove_unreachable_regions): New. * except.c (remove_unreachable_regions): New. (free_eh_status): Clear exception_handler_labels. (convert_from_eh_region_ranges): Call remove_unreachable_regions. (find_exception_handler_labels): Don't add the same label more than once. (remove_exception_handler_label): Don't die if find_exception_handler_labels hasn't been called for the current function yet. From-SVN: r48845
2002-01-14 22:06:26 +01:00
if (uid_region_num[INSN_UID (r->u.try.continue_label)])
abort ();
uid_region_num[INSN_UID (r->u.try.continue_label)] = i;
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
}
except.c (remove_unreachable_regions): New. * except.c (remove_unreachable_regions): New. (free_eh_status): Clear exception_handler_labels. (convert_from_eh_region_ranges): Call remove_unreachable_regions. (find_exception_handler_labels): Don't add the same label more than once. (remove_exception_handler_label): Don't die if find_exception_handler_labels hasn't been called for the current function yet. From-SVN: r48845
2002-01-14 22:06:26 +01:00
}
for (insn = insns; insn; insn = NEXT_INSN (insn))
reachable[uid_region_num[INSN_UID (insn)]] = true;
for (i = cfun->eh->last_region_number; i > 0; --i)
{
r = cfun->eh->region_array[i];
if (r && r->region_number == i && !reachable[i])
{
/* Don't remove ERT_THROW regions if their outer region
is reachable. */
if (r->type == ERT_THROW
&& r->outer
&& reachable[r->outer->region_number])
continue;
remove_eh_handler (r);
}
}
free (reachable);
free (uid_region_num);
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Turn NOTE_INSN_EH_REGION notes into REG_EH_REGION notes for each
can_throw instruction in the region. */
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
static void
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
convert_from_eh_region_ranges_1 (pinsns, orig_sp, cur)
rtx *pinsns;
int *orig_sp;
int cur;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int *sp = orig_sp;
rtx insn, next;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (insn = *pinsns; insn ; insn = next)
{
next = NEXT_INSN (insn);
if (GET_CODE (insn) == NOTE)
{
int kind = NOTE_LINE_NUMBER (insn);
if (kind == NOTE_INSN_EH_REGION_BEG
|| kind == NOTE_INSN_EH_REGION_END)
{
if (kind == NOTE_INSN_EH_REGION_BEG)
{
struct eh_region *r;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
*sp++ = cur;
cur = NOTE_EH_HANDLER (insn);
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
r = cfun->eh->region_array[cur];
if (r->type == ERT_FIXUP)
{
r = r->u.fixup.real_region;
cur = r ? r->region_number : 0;
}
else if (r->type == ERT_CATCH)
{
r = r->outer;
cur = r ? r->region_number : 0;
}
}
else
cur = *--sp;
/* Removing the first insn of a CALL_PLACEHOLDER sequence
requires extra care to adjust sequence start. */
if (insn == *pinsns)
*pinsns = next;
remove_insn (insn);
continue;
}
}
else if (INSN_P (insn))
{
except.c: Revert 04-01 and 04-02 forced-unwind changes. gcc/ * except.c: Revert 04-01 and 04-02 forced-unwind changes. * flags.h, toplev.c, doc/invoke.texi: Likewise. * unwind-dw2.c (_Unwind_GetCFA): Fix ptr->int conversion warning. * unwind.inc (_Unwind_DeleteException): Check for null exception_cleanup. * unwind-sjlj.c (_Unwind_SjLj_Resume_or_Rethrow): New. * unwind.inc (_Unwind_Resume_or_Rethrow): New. * unwind.h: Declare them. * libgcc-std.ver (GCC_3.3): Export them. gcc/cp/ * cfns.gperf: Comment out POSIX thread cancellation points, plus abort and raise. * cfns.h: Regenerate. gcc/testsuite/ * g++.dg/eh/forced1.C: Expect catch-all handlers to run. Verify exception_cleanup not called for rethrows. * g++.dg/eh/forced2.C: Test that exception_cleanup is called when exiting catch block without rethrowing. * g++.dg/eh/forced3.C: New. * g++.dg/eh/forced4.C: New. libstdc++-v3/ * libsupc++/eh_catch.cc (__cxa_begin_catch): Handle foreign exceptions. (__cxa_end_catch): Likewise. * libsupc++/eh_throw.cc (__cxa_rethrow): Likewise. Use _Unwind_Resume_or_Rethrow. * libsupc++/eh_personality.cc (empty_exception_spec): New. (PERSONALITY_FUNCTION): Don't ignore terminate or catch-all for _UA_FORCE_UNWIND. Honor empty filter spec for foreign exceptions. Don't push terminate/unexpected to cxa functions. (__cxa_call_unexpected): Remove foreign exception fixmes. From-SVN: r66583
2003-05-07 15:11:38 -07:00
if (cur > 0
&& ! find_reg_note (insn, REG_EH_REGION, NULL_RTX)
/* Calls can always potentially throw exceptions, unless
they have a REG_EH_REGION note with a value of 0 or less.
Which should be the only possible kind so far. */
&& (GET_CODE (insn) == CALL_INSN
/* If we wanted exceptions for non-call insns, then
any may_trap_p instruction could throw. */
|| (flag_non_call_exceptions
&& GET_CODE (PATTERN (insn)) != CLOBBER
&& GET_CODE (PATTERN (insn)) != USE
&& may_trap_p (PATTERN (insn)))))
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
{
except.c: Revert 04-01 and 04-02 forced-unwind changes. gcc/ * except.c: Revert 04-01 and 04-02 forced-unwind changes. * flags.h, toplev.c, doc/invoke.texi: Likewise. * unwind-dw2.c (_Unwind_GetCFA): Fix ptr->int conversion warning. * unwind.inc (_Unwind_DeleteException): Check for null exception_cleanup. * unwind-sjlj.c (_Unwind_SjLj_Resume_or_Rethrow): New. * unwind.inc (_Unwind_Resume_or_Rethrow): New. * unwind.h: Declare them. * libgcc-std.ver (GCC_3.3): Export them. gcc/cp/ * cfns.gperf: Comment out POSIX thread cancellation points, plus abort and raise. * cfns.h: Regenerate. gcc/testsuite/ * g++.dg/eh/forced1.C: Expect catch-all handlers to run. Verify exception_cleanup not called for rethrows. * g++.dg/eh/forced2.C: Test that exception_cleanup is called when exiting catch block without rethrowing. * g++.dg/eh/forced3.C: New. * g++.dg/eh/forced4.C: New. libstdc++-v3/ * libsupc++/eh_catch.cc (__cxa_begin_catch): Handle foreign exceptions. (__cxa_end_catch): Likewise. * libsupc++/eh_throw.cc (__cxa_rethrow): Likewise. Use _Unwind_Resume_or_Rethrow. * libsupc++/eh_personality.cc (empty_exception_spec): New. (PERSONALITY_FUNCTION): Don't ignore terminate or catch-all for _UA_FORCE_UNWIND. Honor empty filter spec for foreign exceptions. Don't push terminate/unexpected to cxa functions. (__cxa_call_unexpected): Remove foreign exception fixmes. From-SVN: r66583
2003-05-07 15:11:38 -07:00
REG_NOTES (insn) = alloc_EXPR_LIST (REG_EH_REGION, GEN_INT (cur),
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
REG_NOTES (insn));
}
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (GET_CODE (insn) == CALL_INSN
&& GET_CODE (PATTERN (insn)) == CALL_PLACEHOLDER)
{
convert_from_eh_region_ranges_1 (&XEXP (PATTERN (insn), 0),
sp, cur);
convert_from_eh_region_ranges_1 (&XEXP (PATTERN (insn), 1),
sp, cur);
convert_from_eh_region_ranges_1 (&XEXP (PATTERN (insn), 2),
sp, cur);
}
}
}
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (sp != orig_sp)
abort ();
}
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
convert_from_eh_region_ranges ()
{
int *stack;
rtx insns;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
collect_eh_region_array ();
resolve_fixup_regions ();
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
stack = xmalloc (sizeof (int) * (cfun->eh->last_region_number + 1));
insns = get_insns ();
convert_from_eh_region_ranges_1 (&insns, stack, 0);
free (stack);
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
remove_fixup_regions ();
except.c (remove_unreachable_regions): New. * except.c (remove_unreachable_regions): New. (free_eh_status): Clear exception_handler_labels. (convert_from_eh_region_ranges): Call remove_unreachable_regions. (find_exception_handler_labels): Don't add the same label more than once. (remove_exception_handler_label): Don't die if find_exception_handler_labels hasn't been called for the current function yet. From-SVN: r48845
2002-01-14 22:06:26 +01:00
remove_unreachable_regions (insns);
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
}
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
static void
add_ehl_entry (label, region)
rtx label;
struct eh_region *region;
{
struct ehl_map_entry **slot, *entry;
LABEL_PRESERVE_P (label) = 1;
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
entry = (struct ehl_map_entry *) ggc_alloc (sizeof (*entry));
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
entry->label = label;
entry->region = region;
slot = (struct ehl_map_entry **)
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
htab_find_slot (cfun->eh->exception_handler_label_map, entry, INSERT);
except.c (add_ehl_entry): Allow duplicates after landing pad creation. * except.c (add_ehl_entry): Allow duplicates after landing pad creation. From-SVN: r52149
2002-04-10 18:06:33 -07:00
/* Before landing pad creation, each exception handler has its own
label. After landing pad creation, the exception handlers may
share landing pads. This is ok, since maybe_remove_eh_handler
only requires the 1-1 mapping before landing pad creation. */
if (*slot && !cfun->eh->built_landing_pads)
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
abort ();
except.c (add_ehl_entry): Allow duplicates after landing pad creation. * except.c (add_ehl_entry): Allow duplicates after landing pad creation. From-SVN: r52149
2002-04-10 18:06:33 -07:00
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
*slot = entry;
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
find_exception_handler_labels ()
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int i;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
if (cfun->eh->exception_handler_label_map)
htab_empty (cfun->eh->exception_handler_label_map);
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
else
{
/* ??? The expansion factor here (3/2) must be greater than the htab
occupancy factor (4/3) to avoid unnecessary resizing. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
cfun->eh->exception_handler_label_map
= htab_create_ggc (cfun->eh->last_region_number * 3 / 2,
ehl_hash, ehl_eq, NULL);
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
}
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (cfun->eh->region_tree == NULL)
return;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (i = cfun->eh->last_region_number; i > 0; --i)
{
struct eh_region *region = cfun->eh->region_array[i];
rtx lab;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
except.c (remove_unreachable_regions): New. * except.c (remove_unreachable_regions): New. (free_eh_status): Clear exception_handler_labels. (convert_from_eh_region_ranges): Call remove_unreachable_regions. (find_exception_handler_labels): Don't add the same label more than once. (remove_exception_handler_label): Don't die if find_exception_handler_labels hasn't been called for the current function yet. From-SVN: r48845
2002-01-14 22:06:26 +01:00
if (! region || region->region_number != i)
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
continue;
if (cfun->eh->built_landing_pads)
lab = region->landing_pad;
else
lab = region->label;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (lab)
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
add_ehl_entry (lab, region);
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* For sjlj exceptions, need the return label to remain live until
after landing pad generation. */
if (USING_SJLJ_EXCEPTIONS && ! cfun->eh->built_landing_pads)
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
add_ehl_entry (return_label, NULL);
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
}
except.c (current_function_has_exception_handlers): New. * except.c (current_function_has_exception_handlers): New. * except.h: Declare it. * sibcall.c (optimize_sibling_and_tail_recursive_call): Use it. Combine tests that disable all sibcalls for the function. From-SVN: r51054
2002-03-19 16:49:13 -08:00
bool
current_function_has_exception_handlers ()
{
int i;
for (i = cfun->eh->last_region_number; i > 0; --i)
{
struct eh_region *region = cfun->eh->region_array[i];
if (! region || region->region_number != i)
continue;
if (region->type != ERT_THROW)
return true;
}
return false;
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static struct eh_region *
duplicate_eh_region_1 (o, map)
struct eh_region *o;
struct inline_remap *map;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *n
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
= (struct eh_region *) ggc_alloc_cleared (sizeof (struct eh_region));
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
n->region_number = o->region_number + cfun->eh->last_region_number;
n->type = o->type;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
switch (n->type)
{
case ERT_CLEANUP:
case ERT_MUST_NOT_THROW:
break;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_TRY:
if (o->u.try.continue_label)
n->u.try.continue_label
= get_label_from_map (map,
CODE_LABEL_NUMBER (o->u.try.continue_label));
break;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_CATCH:
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
n->u.catch.type_list = o->u.catch.type_list;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
break;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_ALLOWED_EXCEPTIONS:
n->u.allowed.type_list = o->u.allowed.type_list;
break;
case ERT_THROW:
n->u.throw.type = o->u.throw.type;
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
default:
abort ();
}
if (o->label)
n->label = get_label_from_map (map, CODE_LABEL_NUMBER (o->label));
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
if (o->resume)
print-tree.c (print_node): Print base for OFFSET_TYPEs. * print-tree.c (print_node): Print base for OFFSET_TYPEs. * except.c (expand_eh_region_start_for_decl): Always start a new block. * stmt.c (is_eh_region): Make sure current_function is present, too. From-SVN: r28621
1999-08-09 08:52:48 +00:00
{
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
n->resume = map->insn_map[INSN_UID (o->resume)];
if (n->resume == NULL)
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
abort ();
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return n;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static void
duplicate_eh_region_2 (o, n_array)
struct eh_region *o;
struct eh_region **n_array;
except.c (expand_eh_region_start_tree): Add DECL argument so we can better track why the region was made for error... * except.c (expand_eh_region_start_tree): Add DECL argument so we can better track why the region was made for error reporting. * except.h (expand_eh_region_start_tree): Likewise. * tree.h (expand_dhc_cleanup): Likewise. (expand_dcc_cleanup): Likewise. * except.c (expand_eh_region_start_for_decl): New routine. * except.h (expand_eh_region_start_for_decl): Likewise. * stmt.c (expand_decl_cleanup): Add DECL to call of expand_eh_region_start_tree. (expand_dcc_cleanup): Likewise. (expand_dhc_cleanup): Likewise. (expand_start_case): Switches introduce conditional contexts. (expand_start_case_dummy): Likewise. (expand_start_case_dummy): Likewise. (expand_end_case): Likewise. From-SVN: r13990
1997-04-29 20:03:15 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *n = n_array[o->region_number];
except.c (expand_eh_region_start_tree): Add DECL argument so we can better track why the region was made for error... * except.c (expand_eh_region_start_tree): Add DECL argument so we can better track why the region was made for error reporting. * except.h (expand_eh_region_start_tree): Likewise. * tree.h (expand_dhc_cleanup): Likewise. (expand_dcc_cleanup): Likewise. * except.c (expand_eh_region_start_for_decl): New routine. * except.h (expand_eh_region_start_for_decl): Likewise. * stmt.c (expand_decl_cleanup): Add DECL to call of expand_eh_region_start_tree. (expand_dcc_cleanup): Likewise. (expand_dhc_cleanup): Likewise. (expand_start_case): Switches introduce conditional contexts. (expand_start_case_dummy): Likewise. (expand_start_case_dummy): Likewise. (expand_end_case): Likewise. From-SVN: r13990
1997-04-29 20:03:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
switch (n->type)
{
case ERT_TRY:
n->u.try.catch = n_array[o->u.try.catch->region_number];
n->u.try.last_catch = n_array[o->u.try.last_catch->region_number];
break;
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_CATCH:
if (o->u.catch.next_catch)
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
n->u.catch.next_catch = n_array[o->u.catch.next_catch->region_number];
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (o->u.catch.prev_catch)
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
n->u.catch.prev_catch = n_array[o->u.catch.prev_catch->region_number];
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
break;
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
default:
break;
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (o->outer)
n->outer = n_array[o->outer->region_number];
if (o->inner)
n->inner = n_array[o->inner->region_number];
if (o->next_peer)
n->next_peer = n_array[o->next_peer->region_number];
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int
duplicate_eh_regions (ifun, map)
struct function *ifun;
struct inline_remap *map;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int ifun_last_region_number = ifun->eh->last_region_number;
struct eh_region **n_array, *root, *cur;
int i;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (ifun_last_region_number == 0)
return 0;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
n_array = xcalloc (ifun_last_region_number + 1, sizeof (*n_array));
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (i = 1; i <= ifun_last_region_number; ++i)
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
cur = ifun->eh->region_array[i];
if (!cur || cur->region_number != i)
continue;
n_array[i] = duplicate_eh_region_1 (cur, map);
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (i = 1; i <= ifun_last_region_number; ++i)
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
cur = ifun->eh->region_array[i];
if (!cur || cur->region_number != i)
continue;
duplicate_eh_region_2 (cur, n_array);
}
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
root = n_array[ifun->eh->region_tree->region_number];
cur = cfun->eh->cur_region;
if (cur)
{
struct eh_region *p = cur->inner;
if (p)
{
while (p->next_peer)
p = p->next_peer;
p->next_peer = root;
}
else
cur->inner = root;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (i = 1; i <= ifun_last_region_number; ++i)
* except.c (duplicate_eh_regions): Test n_array[i] for NULL. From-SVN: r44527
2001-08-01 01:37:31 +00:00
if (n_array[i] && n_array[i]->outer == NULL)
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
n_array[i]->outer = cur;
}
else
{
struct eh_region *p = cfun->eh->region_tree;
if (p)
{
while (p->next_peer)
p = p->next_peer;
p->next_peer = root;
}
else
cfun->eh->region_tree = root;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
}
except.h (struct eh_entry): Add goto_entry_p. * except.h (struct eh_entry): Add goto_entry_p. (eh_region_from_symbol): Remove prototype. * except.c (find_func_region_from_symbol): New function. (emit_cleanup_handler): Likewise. (eh_region_from_symbol): Make it static. (add_new_handler): Verify the argument. (find_func_region): Update comment. (expand_eh_region_end): Expand handlers here, rater than waiting until expand_leftover_cleanups or start_all_catch. (expand_leftover_cleanups): Don't expand here. (expand_start_all_catch): Or here. (expand_rethrow): Check the return value from find_func_region. * function.c (expand_function_end): Emit the catch_clauses. From-SVN: r30576
1999-11-18 17:50:56 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
free (n_array);
except.h (struct eh_entry): Add goto_entry_p. * except.h (struct eh_entry): Add goto_entry_p. (eh_region_from_symbol): Remove prototype. * except.c (find_func_region_from_symbol): New function. (emit_cleanup_handler): Likewise. (eh_region_from_symbol): Make it static. (add_new_handler): Verify the argument. (find_func_region): Update comment. (expand_eh_region_end): Expand handlers here, rater than waiting until expand_leftover_cleanups or start_all_catch. (expand_leftover_cleanups): Don't expand here. (expand_start_all_catch): Or here. (expand_rethrow): Check the return value from find_func_region. * function.c (expand_function_end): Emit the catch_clauses. From-SVN: r30576
1999-11-18 17:50:56 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
i = cfun->eh->last_region_number;
cfun->eh->last_region_number = i + ifun_last_region_number;
return i;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static int
t2r_eq (pentry, pdata)
const PTR pentry;
const PTR pdata;
except.c (expand_fixup_region_end): New fn. * except.c (expand_fixup_region_end): New fn. (expand_fixup_region_start): Likewise. (expand_eh_region_start_tree): Store cleanup into finalization here. * stmt.c (expand_cleanups): Use them to protect fixups. From-SVN: r16929
1997-12-03 20:04:31 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
tree entry = (tree) pentry;
tree data = (tree) pdata;
except.c (expand_fixup_region_end): New fn. * except.c (expand_fixup_region_end): New fn. (expand_fixup_region_start): Likewise. (expand_eh_region_start_tree): Store cleanup into finalization here. * stmt.c (expand_cleanups): Use them to protect fixups. From-SVN: r16929
1997-12-03 20:04:31 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return TREE_PURPOSE (entry) == data;
except.c (expand_fixup_region_end): New fn. * except.c (expand_fixup_region_end): New fn. (expand_fixup_region_start): Likewise. (expand_eh_region_start_tree): Store cleanup into finalization here. * stmt.c (expand_cleanups): Use them to protect fixups. From-SVN: r16929
1997-12-03 20:04:31 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static hashval_t
t2r_hash (pentry)
const PTR pentry;
{
tree entry = (tree) pentry;
return TYPE_HASH (TREE_PURPOSE (entry));
}
except.c (expand_fixup_region_end): New fn. * except.c (expand_fixup_region_end): New fn. (expand_fixup_region_start): Likewise. (expand_eh_region_start_tree): Store cleanup into finalization here. * stmt.c (expand_cleanups): Use them to protect fixups. From-SVN: r16929
1997-12-03 20:04:31 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static void
add_type_for_runtime (type)
tree type;
{
tree *slot;
except.c (expand_fixup_region_end): New fn. * except.c (expand_fixup_region_end): New fn. (expand_fixup_region_start): Likewise. (expand_eh_region_start_tree): Store cleanup into finalization here. * stmt.c (expand_cleanups): Use them to protect fixups. From-SVN: r16929
1997-12-03 20:04:31 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
slot = (tree *) htab_find_slot_with_hash (type_to_runtime_map, type,
TYPE_HASH (type), INSERT);
if (*slot == NULL)
{
tree runtime = (*lang_eh_runtime_type) (type);
*slot = tree_cons (type, runtime, NULL_TREE);
}
}
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static tree
lookup_type_for_runtime (type)
tree type;
{
tree *slot;
except.c (expand_fixup_region_end): Make sure outer context labels are not issued in an inner context during cleanups. Thu Nov 5 07:57:45 EST 1998 Andrew MacLeod <amacleod@cygnus.com> * except.c (expand_fixup_region_end): Make sure outer context labels are not issued in an inner context during cleanups. From-SVN: r23538
1998-11-05 05:34:01 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
slot = (tree *) htab_find_slot_with_hash (type_to_runtime_map, type,
TYPE_HASH (type), NO_INSERT);
except.c (expand_fixup_region_end): Make sure outer context labels are not issued in an inner context during cleanups. Thu Nov 5 07:57:45 EST 1998 Andrew MacLeod <amacleod@cygnus.com> * except.c (expand_fixup_region_end): Make sure outer context labels are not issued in an inner context during cleanups. From-SVN: r23538
1998-11-05 05:34:01 +00:00
ChangeLog.0, [...]: Fix spelling errors. * ChangeLog.0, ChangeLog.2, ChangeLog.3, ChangeLog.4, ChangeLog, FSFChangeLog.10, c-decl.c, cppfiles.c, cppinit.c, cpplex.c, cpplib.c, cppmain.c, cse.c, df.c, diagnostic.c, dominance.c, dwarf2out.c, dwarfout.c, emit-rtl.c, errors.c, except.c, except.h, explow.c, function.c, gcse.c, genrecog.c, predict.c, regmove.c, sched-rgn.c, ssa-ccp.c, stmt.c, toplev.c: Fix spelling errors. From-SVN: r47279
2001-11-23 02:05:19 +00:00
/* We should have always inserted the data earlier. */
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return TREE_VALUE (*slot);
}
except.c (expand_fixup_region_end): New fn. * except.c (expand_fixup_region_end): New fn. (expand_fixup_region_start): Likewise. (expand_eh_region_start_tree): Store cleanup into finalization here. * stmt.c (expand_cleanups): Use them to protect fixups. From-SVN: r16929
1997-12-03 20:04:31 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Represent an entry in @TTypes for either catch actions
or exception filter actions. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
struct ttypes_filter GTY(())
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
{
tree t;
int filter;
};
except.c (expand_fixup_region_end): Make sure outer context labels are not issued in an inner context during cleanups. Thu Nov 5 07:57:45 EST 1998 Andrew MacLeod <amacleod@cygnus.com> * except.c (expand_fixup_region_end): Make sure outer context labels are not issued in an inner context during cleanups. From-SVN: r23538
1998-11-05 05:34:01 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Compare ENTRY (a ttypes_filter entry in the hash table) with DATA
(a tree) for a @TTypes type node we are thinking about adding. */
except.c (expand_fixup_region_end): Make sure outer context labels are not issued in an inner context during cleanups. Thu Nov 5 07:57:45 EST 1998 Andrew MacLeod <amacleod@cygnus.com> * except.c (expand_fixup_region_end): Make sure outer context labels are not issued in an inner context during cleanups. From-SVN: r23538
1998-11-05 05:34:01 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static int
ttypes_filter_eq (pentry, pdata)
const PTR pentry;
const PTR pdata;
{
const struct ttypes_filter *entry = (const struct ttypes_filter *) pentry;
tree data = (tree) pdata;
except.c (expand_fixup_region_end): Make sure outer context labels are not issued in an inner context during cleanups. Thu Nov 5 07:57:45 EST 1998 Andrew MacLeod <amacleod@cygnus.com> * except.c (expand_fixup_region_end): Make sure outer context labels are not issued in an inner context during cleanups. From-SVN: r23538
1998-11-05 05:34:01 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return entry->t == data;
except.c (expand_fixup_region_end): New fn. * except.c (expand_fixup_region_end): New fn. (expand_fixup_region_start): Likewise. (expand_eh_region_start_tree): Store cleanup into finalization here. * stmt.c (expand_cleanups): Use them to protect fixups. From-SVN: r16929
1997-12-03 20:04:31 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static hashval_t
ttypes_filter_hash (pentry)
const PTR pentry;
{
const struct ttypes_filter *entry = (const struct ttypes_filter *) pentry;
return TYPE_HASH (entry->t);
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Compare ENTRY with DATA (both struct ttypes_filter) for a @TTypes
exception specification list we are thinking about adding. */
/* ??? Currently we use the type lists in the order given. Someone
should put these in some canonical order. */
static int
ehspec_filter_eq (pentry, pdata)
const PTR pentry;
const PTR pdata;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
const struct ttypes_filter *entry = (const struct ttypes_filter *) pentry;
const struct ttypes_filter *data = (const struct ttypes_filter *) pdata;
return type_list_equal (entry->t, data->t);
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Hash function for exception specification lists. */
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static hashval_t
ehspec_filter_hash (pentry)
const PTR pentry;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
const struct ttypes_filter *entry = (const struct ttypes_filter *) pentry;
hashval_t h = 0;
tree list;
for (list = entry->t; list ; list = TREE_CHAIN (list))
h = (h << 5) + (h >> 27) + TYPE_HASH (TREE_VALUE (list));
return h;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Add TYPE to cfun->eh->ttype_data, using TYPES_HASH to speed
up the search. Return the filter value to be used. */
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static int
add_ttypes_entry (ttypes_hash, type)
htab_t ttypes_hash;
tree type;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct ttypes_filter **slot, *n;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
slot = (struct ttypes_filter **)
htab_find_slot_with_hash (ttypes_hash, type, TYPE_HASH (type), INSERT);
if ((n = *slot) == NULL)
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Filter value is a 1 based table index. */
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
n = (struct ttypes_filter *) xmalloc (sizeof (*n));
n->t = type;
n->filter = VARRAY_ACTIVE_SIZE (cfun->eh->ttype_data) + 1;
*slot = n;
VARRAY_PUSH_TREE (cfun->eh->ttype_data, type);
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return n->filter;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Add LIST to cfun->eh->ehspec_data, using EHSPEC_HASH and TYPES_HASH
to speed up the search. Return the filter value to be used. */
static int
add_ehspec_entry (ehspec_hash, ttypes_hash, list)
htab_t ehspec_hash;
htab_t ttypes_hash;
tree list;
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct ttypes_filter **slot, *n;
struct ttypes_filter dummy;
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
dummy.t = list;
slot = (struct ttypes_filter **)
htab_find_slot (ehspec_hash, &dummy, INSERT);
if ((n = *slot) == NULL)
{
/* Filter value is a -1 based byte index into a uleb128 buffer. */
n = (struct ttypes_filter *) xmalloc (sizeof (*n));
n->t = list;
n->filter = -(VARRAY_ACTIVE_SIZE (cfun->eh->ehspec_data) + 1);
*slot = n;
/* Look up each type in the list and encode its filter
value as a uleb128. Terminate the list with 0. */
for (; list ; list = TREE_CHAIN (list))
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
push_uleb128 (&cfun->eh->ehspec_data,
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
add_ttypes_entry (ttypes_hash, TREE_VALUE (list)));
VARRAY_PUSH_UCHAR (cfun->eh->ehspec_data, 0);
}
return n->filter;
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Generate the action filter values to be used for CATCH and
ALLOWED_EXCEPTIONS regions. When using dwarf2 exception regions,
we use lots of landing pads, and so every type or list can share
the same filter value, which saves table space. */
static void
assign_filter_values ()
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int i;
htab_t ttypes, ehspec;
except.c (start_catch_handler): Do nothing if EH is not on. Wed Jun 24 09:14:04 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.c (start_catch_handler): Do nothing if EH is not on. From-SVN: r20695
1998-06-24 06:56:37 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
VARRAY_TREE_INIT (cfun->eh->ttype_data, 16, "ttype_data");
VARRAY_UCHAR_INIT (cfun->eh->ehspec_data, 64, "ehspec_data");
except.c (start_catch_handler): Do nothing if EH is not on. Wed Jun 24 09:14:04 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.c (start_catch_handler): Do nothing if EH is not on. From-SVN: r20695
1998-06-24 06:56:37 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
ttypes = htab_create (31, ttypes_filter_hash, ttypes_filter_eq, free);
ehspec = htab_create (31, ehspec_filter_hash, ehspec_filter_eq, free);
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (i = cfun->eh->last_region_number; i > 0; --i)
{
struct eh_region *r = cfun->eh->region_array[i];
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Mind we don't process a region more than once. */
if (!r || r->region_number != i)
continue;
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
switch (r->type)
{
case ERT_CATCH:
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
/* Whatever type_list is (NULL or true list), we build a list
of filters for the region. */
r->u.catch.filter_list = NULL_TREE;
if (r->u.catch.type_list != NULL)
{
/* Get a filter value for each of the types caught and store
them in the region's dedicated list. */
tree tp_node = r->u.catch.type_list;
for (;tp_node; tp_node = TREE_CHAIN (tp_node))
{
int flt = add_ttypes_entry (ttypes, TREE_VALUE (tp_node));
tree flt_node = build_int_2 (flt, 0);
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
r->u.catch.filter_list
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
= tree_cons (NULL_TREE, flt_node, r->u.catch.filter_list);
}
}
else
{
/* Get a filter value for the NULL list also since it will need
an action record anyway. */
int flt = add_ttypes_entry (ttypes, NULL);
tree flt_node = build_int_2 (flt, 0);
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
r->u.catch.filter_list
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
= tree_cons (NULL_TREE, flt_node, r->u.catch.filter_list);
}
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
break;
[multiple changes] Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (struct eh_entry): Add false_label field. (end_catch_handler): Add prototype. * except.c (push_eh_entry): Set false_label field to NULL_RTX. (start_catch_handler): When using old style exceptions, issue runtime typematch code before continuing with the handler. (end_catch_handler): New function, generates label after handler if needed by older style exceptions. (expand_start_all_catch): No need to check for new style exceptions. (output_exception_table_entry): Only output the first handler label for old style exceptions. * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching mechanism into one function, if a runtime matcher is provided. 1998-09-15 Andrew MacLeod <amacleod@cygnus.com> * cp/except.c (expand_start_catch_block): No need to check for new exception model. (process_start_catch_block_old): Deleted. (process_start_catch_block): Add call to start_decl_1(). (expand_end_catch_block): Add call to end_catch_handler(). * cp/exception.cc (__cplus_type_matcher): Only check the exception language if there is an exception table. From-SVN: r22425
1998-09-15 11:20:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_ALLOWED_EXCEPTIONS:
r->u.allowed.filter
= add_ehspec_entry (ehspec, ttypes, r->u.allowed.type_list);
break;
[multiple changes] Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (struct eh_entry): Add false_label field. (end_catch_handler): Add prototype. * except.c (push_eh_entry): Set false_label field to NULL_RTX. (start_catch_handler): When using old style exceptions, issue runtime typematch code before continuing with the handler. (end_catch_handler): New function, generates label after handler if needed by older style exceptions. (expand_start_all_catch): No need to check for new style exceptions. (output_exception_table_entry): Only output the first handler label for old style exceptions. * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching mechanism into one function, if a runtime matcher is provided. 1998-09-15 Andrew MacLeod <amacleod@cygnus.com> * cp/except.c (expand_start_catch_block): No need to check for new exception model. (process_start_catch_block_old): Deleted. (process_start_catch_block): Add call to start_decl_1(). (expand_end_catch_block): Add call to end_catch_handler(). * cp/exception.cc (__cplus_type_matcher): Only check the exception language if there is an exception table. From-SVN: r22425
1998-09-15 11:20:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
default:
break;
}
}
htab_delete (ttypes);
htab_delete (ehspec);
}
static void
build_post_landing_pads ()
{
int i;
[multiple changes] Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (struct eh_entry): Add false_label field. (end_catch_handler): Add prototype. * except.c (push_eh_entry): Set false_label field to NULL_RTX. (start_catch_handler): When using old style exceptions, issue runtime typematch code before continuing with the handler. (end_catch_handler): New function, generates label after handler if needed by older style exceptions. (expand_start_all_catch): No need to check for new style exceptions. (output_exception_table_entry): Only output the first handler label for old style exceptions. * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching mechanism into one function, if a runtime matcher is provided. 1998-09-15 Andrew MacLeod <amacleod@cygnus.com> * cp/except.c (expand_start_catch_block): No need to check for new exception model. (process_start_catch_block_old): Deleted. (process_start_catch_block): Add call to start_decl_1(). (expand_end_catch_block): Add call to end_catch_handler(). * cp/exception.cc (__cplus_type_matcher): Only check the exception language if there is an exception table. From-SVN: r22425
1998-09-15 11:20:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (i = cfun->eh->last_region_number; i > 0; --i)
[multiple changes] Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (struct eh_entry): Add false_label field. (end_catch_handler): Add prototype. * except.c (push_eh_entry): Set false_label field to NULL_RTX. (start_catch_handler): When using old style exceptions, issue runtime typematch code before continuing with the handler. (end_catch_handler): New function, generates label after handler if needed by older style exceptions. (expand_start_all_catch): No need to check for new style exceptions. (output_exception_table_entry): Only output the first handler label for old style exceptions. * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching mechanism into one function, if a runtime matcher is provided. 1998-09-15 Andrew MacLeod <amacleod@cygnus.com> * cp/except.c (expand_start_catch_block): No need to check for new exception model. (process_start_catch_block_old): Deleted. (process_start_catch_block): Add call to start_decl_1(). (expand_end_catch_block): Add call to end_catch_handler(). * cp/exception.cc (__cplus_type_matcher): Only check the exception language if there is an exception table. From-SVN: r22425
1998-09-15 11:20:52 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *region = cfun->eh->region_array[i];
rtx seq;
[multiple changes] Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (struct eh_entry): Add false_label field. (end_catch_handler): Add prototype. * except.c (push_eh_entry): Set false_label field to NULL_RTX. (start_catch_handler): When using old style exceptions, issue runtime typematch code before continuing with the handler. (end_catch_handler): New function, generates label after handler if needed by older style exceptions. (expand_start_all_catch): No need to check for new style exceptions. (output_exception_table_entry): Only output the first handler label for old style exceptions. * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching mechanism into one function, if a runtime matcher is provided. 1998-09-15 Andrew MacLeod <amacleod@cygnus.com> * cp/except.c (expand_start_catch_block): No need to check for new exception model. (process_start_catch_block_old): Deleted. (process_start_catch_block): Add call to start_decl_1(). (expand_end_catch_block): Add call to end_catch_handler(). * cp/exception.cc (__cplus_type_matcher): Only check the exception language if there is an exception table. From-SVN: r22425
1998-09-15 11:20:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Mind we don't process a region more than once. */
if (!region || region->region_number != i)
continue;
switch (region->type)
system.h: Don't redefine abort or trim_filename. 1999-08-25 22:10 -0700 Zack Weinberg <zack@bitmover.com> * system.h: Don't redefine abort or trim_filename. * rtl.h: Define abort to fancy_abort (__FILE__, __LINE__, 0) or fancy_abort (__FILE__, __LINE__, __FUNCTION__) depending on whether or not __FUNCTION__ is available. * tree.h: Duplicate rtl.h's definition of abort, for files that don't include rtl.h. Delete all code to perform type checking with a compiler other than GCC. * varray.h: Delete all code to perform type checking with a compiler other than GCC. Make VARRAY_CHECK() always evaluate its arguments exactly once, using a statement expression. Adjust the VARRAY_<type> accessor macros to match. * toplev.h (fatal_insn, fatal_insn_not_found): Kill. (_fatal_insn, _fatal_insn_not_found): New fns, take info on caller's location. Define fatal_insn and fatal_insn_not_found as macros that use _fatal_insn and _fatal_insn_not_found. (fancy_abort, trim_filename): Kill prototypes. * rtl.c (trim_filename): Move here from toplev.c. (fancy_abort): New function. (DIR_SEPARATOR): Provide default definition. * tree.c (tree_check_failed, tree_class_check_failed): Go through fancy_abort. (tree_check, tree_class_check, cst_or_constructor_check, expr_check): Delete. * varray.c (varray_check_failed): New function. * toplev.c (fatal_insn, fatal_insn_not_found): Replace with _fatal_insn and _fatal_insn_not_found. Go through fancy_abort. (trim_filename, fancy_abort): Delete. * builtins.c (expand_builtin_args_info): Report ICE with abort. * except.c (start_catch_handler): Report ICE with error/abort combo. * final.c (output_operand_lossage): Likewise. * flow.c (verify_flow_info): Likewise. * gcc.c: Prototype fatal. * gengenrtl.c: Undef abort after including rtl.h not system.h. * genattr.c, genattrtab.c, genemit.c, genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c, genrecog.c: Don't define fancy_abort. From-SVN: r28889
1999-08-26 05:18:44 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_TRY:
/* ??? Collect the set of all non-overlapping catch handlers
all the way up the chain until blocked by a cleanup. */
/* ??? Outer try regions can share landing pads with inner
try regions if the types are completely non-overlapping,
ChangeLog.0, [...]: Fix spelling errors. * ChangeLog.0, ChangeLog.2, ChangeLog.3, ChangeLog.4, ChangeLog, FSFChangeLog.10, c-decl.c, cppfiles.c, cppinit.c, cpplex.c, cpplib.c, cppmain.c, cse.c, df.c, diagnostic.c, dominance.c, dwarf2out.c, dwarfout.c, emit-rtl.c, errors.c, except.c, except.h, explow.c, function.c, gcse.c, genrecog.c, predict.c, regmove.c, sched-rgn.c, ssa-ccp.c, stmt.c, toplev.c: Fix spelling errors. From-SVN: r47279
2001-11-23 02:05:19 +00:00
and there are no intervening cleanups. */
[multiple changes] Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (struct eh_entry): Add false_label field. (end_catch_handler): Add prototype. * except.c (push_eh_entry): Set false_label field to NULL_RTX. (start_catch_handler): When using old style exceptions, issue runtime typematch code before continuing with the handler. (end_catch_handler): New function, generates label after handler if needed by older style exceptions. (expand_start_all_catch): No need to check for new style exceptions. (output_exception_table_entry): Only output the first handler label for old style exceptions. * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching mechanism into one function, if a runtime matcher is provided. 1998-09-15 Andrew MacLeod <amacleod@cygnus.com> * cp/except.c (expand_start_catch_block): No need to check for new exception model. (process_start_catch_block_old): Deleted. (process_start_catch_block): Add call to start_decl_1(). (expand_end_catch_block): Add call to end_catch_handler(). * cp/exception.cc (__cplus_type_matcher): Only check the exception language if there is an exception table. From-SVN: r22425
1998-09-15 11:20:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
region->post_landing_pad = gen_label_rtx ();
[multiple changes] Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (struct eh_entry): Add false_label field. (end_catch_handler): Add prototype. * except.c (push_eh_entry): Set false_label field to NULL_RTX. (start_catch_handler): When using old style exceptions, issue runtime typematch code before continuing with the handler. (end_catch_handler): New function, generates label after handler if needed by older style exceptions. (expand_start_all_catch): No need to check for new style exceptions. (output_exception_table_entry): Only output the first handler label for old style exceptions. * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching mechanism into one function, if a runtime matcher is provided. 1998-09-15 Andrew MacLeod <amacleod@cygnus.com> * cp/except.c (expand_start_catch_block): No need to check for new exception model. (process_start_catch_block_old): Deleted. (process_start_catch_block): Add call to start_decl_1(). (expand_end_catch_block): Add call to end_catch_handler(). * cp/exception.cc (__cplus_type_matcher): Only check the exception language if there is an exception table. From-SVN: r22425
1998-09-15 11:20:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
start_sequence ();
[multiple changes] Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (struct eh_entry): Add false_label field. (end_catch_handler): Add prototype. * except.c (push_eh_entry): Set false_label field to NULL_RTX. (start_catch_handler): When using old style exceptions, issue runtime typematch code before continuing with the handler. (end_catch_handler): New function, generates label after handler if needed by older style exceptions. (expand_start_all_catch): No need to check for new style exceptions. (output_exception_table_entry): Only output the first handler label for old style exceptions. * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching mechanism into one function, if a runtime matcher is provided. 1998-09-15 Andrew MacLeod <amacleod@cygnus.com> * cp/except.c (expand_start_catch_block): No need to check for new exception model. (process_start_catch_block_old): Deleted. (process_start_catch_block): Add call to start_decl_1(). (expand_end_catch_block): Add call to end_catch_handler(). * cp/exception.cc (__cplus_type_matcher): Only check the exception language if there is an exception table. From-SVN: r22425
1998-09-15 11:20:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_label (region->post_landing_pad);
[multiple changes] Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (struct eh_entry): Add false_label field. (end_catch_handler): Add prototype. * except.c (push_eh_entry): Set false_label field to NULL_RTX. (start_catch_handler): When using old style exceptions, issue runtime typematch code before continuing with the handler. (end_catch_handler): New function, generates label after handler if needed by older style exceptions. (expand_start_all_catch): No need to check for new style exceptions. (output_exception_table_entry): Only output the first handler label for old style exceptions. * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching mechanism into one function, if a runtime matcher is provided. 1998-09-15 Andrew MacLeod <amacleod@cygnus.com> * cp/except.c (expand_start_catch_block): No need to check for new exception model. (process_start_catch_block_old): Deleted. (process_start_catch_block): Add call to start_decl_1(). (expand_end_catch_block): Add call to end_catch_handler(). * cp/exception.cc (__cplus_type_matcher): Only check the exception language if there is an exception table. From-SVN: r22425
1998-09-15 11:20:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* ??? It is mighty inconvenient to call back into the
switch statement generation code in expand_end_case.
Rapid prototyping sez a sequence of ifs. */
{
struct eh_region *c;
for (c = region->u.try.catch; c ; c = c->u.catch.next_catch)
{
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
if (c->u.catch.type_list == NULL)
except.c: Revert 04-01 and 04-02 forced-unwind changes. gcc/ * except.c: Revert 04-01 and 04-02 forced-unwind changes. * flags.h, toplev.c, doc/invoke.texi: Likewise. * unwind-dw2.c (_Unwind_GetCFA): Fix ptr->int conversion warning. * unwind.inc (_Unwind_DeleteException): Check for null exception_cleanup. * unwind-sjlj.c (_Unwind_SjLj_Resume_or_Rethrow): New. * unwind.inc (_Unwind_Resume_or_Rethrow): New. * unwind.h: Declare them. * libgcc-std.ver (GCC_3.3): Export them. gcc/cp/ * cfns.gperf: Comment out POSIX thread cancellation points, plus abort and raise. * cfns.h: Regenerate. gcc/testsuite/ * g++.dg/eh/forced1.C: Expect catch-all handlers to run. Verify exception_cleanup not called for rethrows. * g++.dg/eh/forced2.C: Test that exception_cleanup is called when exiting catch block without rethrowing. * g++.dg/eh/forced3.C: New. * g++.dg/eh/forced4.C: New. libstdc++-v3/ * libsupc++/eh_catch.cc (__cxa_begin_catch): Handle foreign exceptions. (__cxa_end_catch): Likewise. * libsupc++/eh_throw.cc (__cxa_rethrow): Likewise. Use _Unwind_Resume_or_Rethrow. * libsupc++/eh_personality.cc (empty_exception_spec): New. (PERSONALITY_FUNCTION): Don't ignore terminate or catch-all for _UA_FORCE_UNWIND. Honor empty filter spec for foreign exceptions. Don't push terminate/unexpected to cxa functions. (__cxa_call_unexpected): Remove foreign exception fixmes. From-SVN: r66583
2003-05-07 15:11:38 -07:00
emit_jump (c->label);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
else
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
{
/* Need for one cmp/jump per type caught. Each type
list entry has a matching entry in the filter list
(see assign_filter_values). */
tree tp_node = c->u.catch.type_list;
tree flt_node = c->u.catch.filter_list;
for (; tp_node; )
{
emit_cmp_and_jump_insns
(cfun->eh->filter,
GEN_INT (tree_low_cst (TREE_VALUE (flt_node), 0)),
EQ, NULL_RTX, word_mode, 0, c->label);
tp_node = TREE_CHAIN (tp_node);
flt_node = TREE_CHAIN (flt_node);
}
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
}
}
[multiple changes] Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (struct eh_entry): Add false_label field. (end_catch_handler): Add prototype. * except.c (push_eh_entry): Set false_label field to NULL_RTX. (start_catch_handler): When using old style exceptions, issue runtime typematch code before continuing with the handler. (end_catch_handler): New function, generates label after handler if needed by older style exceptions. (expand_start_all_catch): No need to check for new style exceptions. (output_exception_table_entry): Only output the first handler label for old style exceptions. * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching mechanism into one function, if a runtime matcher is provided. 1998-09-15 Andrew MacLeod <amacleod@cygnus.com> * cp/except.c (expand_start_catch_block): No need to check for new exception model. (process_start_catch_block_old): Deleted. (process_start_catch_block): Add call to start_decl_1(). (expand_end_catch_block): Add call to end_catch_handler(). * cp/exception.cc (__cplus_type_matcher): Only check the exception language if there is an exception table. From-SVN: r22425
1998-09-15 11:20:52 +00:00
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
/* We delay the generation of the _Unwind_Resume until we generate
landing pads. We emit a marker here so as to get good control
flow data in the meantime. */
region->resume
= emit_jump_insn (gen_rtx_RESX (VOIDmode, region->region_number));
emit_barrier ();
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
seq = get_insns ();
end_sequence ();
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
Delete SEQUENCE rtl usage outside of reorg and ssa passes. 2002-06-05 David S. Miller <davem@redhat.com> Delete SEQUENCE rtl usage outside of reorg and ssa passes. * rtl.h (gen_sequence, emit_insns, emit_insns_before, emit_insns_before_scope, emit_insns_after, emit_insns_after_scope): Delete declaration. * ada/misc.c (insert_code_for): Use emit_insn* instead of emit_insns_foo. * config/alpha/alpha.c (alpha_set_memflags_1): Abort on SEQUENCE. (alpha_set_memflags): Fix comment. (set_frame_related_p): Use get_insns instead of gen_sequence. * config/alpha/alpha.md (setjmp receiver splitter): Avoid emitting no insns. * config/arm/arm.c (arm_finalize_pic): Use get_insns instead of gen_sequence. (arm_gen_load_multiple, arm_gen_store_multiple): Likewise. * config/fr30/fr30.c (fr30_move_double): Likewise. * config/i386/i386.c (ix86_expand_int_movcc, ix86_expand_movstr): Likewise. * config/ia64/ia64.c (spill_restore_mem): Likewise. * config/ia64/ia64.md (conditional move spliiter): Avoid emitting no insns. * config/m32r/m32r.c (gen_split_move_double): Use get_insns instead of gen_sequence. * config/mips/mips.c (embedded_pic_fnaddr_reg): Likewise. (mips_expand_prologue, mips16_gp_pseudo_reg): Likewise. * config/sh/sh.c (sh_need_epilogue): Likewise. * config/sparc/sparc.md (current_function_calls_alloca, flat): New attributes. (setjmp pattern and split): Use them to avoid splitter which emits no RTL. * genattrtab.c (main): Emit include of function.h * config/stormy16/stormy16.c (xstormy16_split_cbranch): Use get_insns instead of gen_sequence. * config/cris/cris.c (cris_split_movdx): Likewise. * emit-rtl.c (emit_insns*): Kill. (try_split): Expect insn list instead of SEQUENCE. (make_jump_insn_raw, make_call_insn_raw): Fix comments. (emit_*insn*): Reimplement to work with INSN lists and PATTERNs. Make them abort if a SEQUENCE is given and RTL checking is enabled. (emit_*_scope): Don't forget to set scope on final insn. (gen_sequence): Move from here... * ssa.c (gen_sequence): To here as private function. * builtins.c (expand_builtin_apply_args): Use emit_insn_foo, fix comments. (expand_builtin_return, expand_builtin_mathfn): Likewise. (expand_builtin_strlen): Use get_insns instead of gen_sequence. (expand_builtin_saveregs): Use emit_insn_foo, fix comments. (expand_builtin_expect_jump): Use get_insns and fix comments. * calls.c (try_to_integrate): Use emit_insn_foo. (expand_call, emit_library_call_value_1): Likewise. * expr.c (emit_queue): Handle insn lists instead of SEQUENCE. (emit_move_insn_1): Use get_insns instead of gen_sequence. (expand_expr): Use emit_insn_foo. * cfgrtl.c (commit_one_edge_insertion): Use emit_insn_foo. * except.c (build_post_landing_pads): Likewise. * flow.c (attempt_auto_inc): Likewise. * stmt.c (expand_fixup, fixup_gotos, expand_nl_handler_label, expand_nl_goto_receivers, expand_decl_cleanup): Likewise. * function.c (fixup_var_refs_insn): Use get_insns instead of gen_sequence. (fixup_var_refs_1): Likewise and expect insn list from gen_foo. (fixup_memory_subreg): Use get_insns instead of gen_sequence. (fixup_stack_1, purge_addressof_1, expand_main_function, get_arg_pointer_save_area): Likewise. (optimize_bit_field, instantiate_virtual_regs_1, assign_parms, expand_function_end): Use emit_insn_foo. (record_insns, keep_stack_depressed): Work with insn list instead of SEQUENCE, fix comments. * ifcvt.c (noce_emit_store_flag, noce_try_store_flag, noce_try_store_flag_constants, noce_try_store_flag_inc, noce_try_store_flag_mask, noce_emit_cmove, noce_try_cmove_arith, noce_try_minmax, noce_try_abs): Use emit_insn_foo. (noce_process_if_block): Use get_insns instead of gen_sequence. * optabs.c (add_equal_note): Work with insn list, fix comments. (expand_binop): Expect insn list from GEN_FCN(), use emit_insn_foo. (expand_unop, expand_complex_abs, expand_unop_insn, expand_no_conflict_block): Likewise. (gen_move_insn): Use get_insns instead of gen_sequence. (gen_cond_trap): Likewise. * integrate.c (copy_rtx_and_substitute): Likewise. (emit_initial_value_sets): Use emit_insn_foo. * reload1.c (emit_output_reload_insns, emit_reload_insns): Likewise. (fixup_abnormal_edges): Avoid losing REG_NOTES more intelligently now that RTL generators give insn lists. * sibcall.c (replace_call_placeholder): Use emit_insn_foo. * doloop.c (doloop_modify, doloop_modify_runtime): Use get_insns instead of gen_sequence. (doloop_optimize): Work with insn lists instead of SEQUENCE rtl. * explow.c (emit_stack_save, emit_stack_restore): Use get_insns instead of gen_sequence. * loop.c (move_movables, emit_prefetch_instructions, gen_add_mult, check_dbra_loop, gen_load_of_final_value): Likewise. (loop_regs_update): Work with insn list instead of SEQUENCE rtl. (product_cheap_p): Likewise, and add commentary about RTL wastage here. * lcm.c (optimize_mode_switching): Use get_insns instead of gen_sequence. * profile.c (gen_edge_profiler): Likewise. * regmove.c (copy_src_to_dest): Likewise. * reg-stack.c (compensate_edge): Likewise and fix comment. * gcse.c (process_insert_insn): Likewise. (insert_insn_end_bb): Work with insn list instead of SEQUENCE rtl. * jump.c (delete_prior_computation): Update comment. * genemit.c (gen_expand, gen_split, main): Use get_insns instead of gen_sequence, update comments to match. * recog.c (peephole2_optimize): Work with insn lists instead of SEQUENCE rtl. * sched-vis.c (print_pattern): Abort on SEQUENCE. * unroll.c (unroll_loop, find_splittable_givs, final_giv_value): Use get_insns instead of gen_sequence. (copy_loop_body): Likewise and don't emit dummy NOTE. * genrecog.c: Don't mention SEQUENCE rtl in comments. * combine.c (try_combine): Expect insn lists from split generator. * reorg.c (relax_delay_slots): Emit SEQUENCE into insn list by hand. From-SVN: r54497
2002-06-11 05:22:48 -07:00
emit_insn_before (seq, region->u.try.catch->label);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
break;
[multiple changes] Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * except.h (struct eh_entry): Add false_label field. (end_catch_handler): Add prototype. * except.c (push_eh_entry): Set false_label field to NULL_RTX. (start_catch_handler): When using old style exceptions, issue runtime typematch code before continuing with the handler. (end_catch_handler): New function, generates label after handler if needed by older style exceptions. (expand_start_all_catch): No need to check for new style exceptions. (output_exception_table_entry): Only output the first handler label for old style exceptions. * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching mechanism into one function, if a runtime matcher is provided. 1998-09-15 Andrew MacLeod <amacleod@cygnus.com> * cp/except.c (expand_start_catch_block): No need to check for new exception model. (process_start_catch_block_old): Deleted. (process_start_catch_block): Add call to start_decl_1(). (expand_end_catch_block): Add call to end_catch_handler(). * cp/exception.cc (__cplus_type_matcher): Only check the exception language if there is an exception table. From-SVN: r22425
1998-09-15 11:20:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_ALLOWED_EXCEPTIONS:
region->post_landing_pad = gen_label_rtx ();
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
start_sequence ();
except.h (struct eh_queue): Add `next' pointer. * except.h (struct eh_queue): Add `next' pointer. (struct eh_status): Make x_ehqueue a pointer. (push_ehqueue): Declare. (pop_ehqueue): Likewise. * except.c (expand_eh_region_end): Adjust now that ehqueue is a pointer. (expand_fixup_region_end): Likewise. (expand_leftover_cleanups): Likewise. (push_ehqueue): Define. (pop_ehqueue): Likewise. (emit_cleanup_handler): Use push_ehqueue and pop_ehqueue rather than doing it inline. (expand_start_all_catch): Adjust now that ehqueue is a pointer. (mark_eh_queue): Mark all level of the queue. (mark_eh_status): Adjust now that ehqueue is a pointer. (init_eh_for_function): Allocate ehqueue. (free_eh_status): Free it. * stmt.c (expand_cleanups): Save the ehqueue around the cleanup expansion for a fixup. From-SVN: r30874
1999-12-12 18:32:36 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_label (region->post_landing_pad);
except.h (struct eh_queue): Add `next' pointer. * except.h (struct eh_queue): Add `next' pointer. (struct eh_status): Make x_ehqueue a pointer. (push_ehqueue): Declare. (pop_ehqueue): Likewise. * except.c (expand_eh_region_end): Adjust now that ehqueue is a pointer. (expand_fixup_region_end): Likewise. (expand_leftover_cleanups): Likewise. (push_ehqueue): Define. (pop_ehqueue): Likewise. (emit_cleanup_handler): Use push_ehqueue and pop_ehqueue rather than doing it inline. (expand_start_all_catch): Adjust now that ehqueue is a pointer. (mark_eh_queue): Mark all level of the queue. (mark_eh_status): Adjust now that ehqueue is a pointer. (init_eh_for_function): Allocate ehqueue. (free_eh_status): Free it. * stmt.c (expand_cleanups): Save the ehqueue around the cleanup expansion for a fixup. From-SVN: r30874
1999-12-12 18:32:36 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_cmp_and_jump_insns (cfun->eh->filter,
GEN_INT (region->u.allowed.filter),
alias.c (nonoverlapping_memrefs): Use REGNO_PTR_FRAME_P. * alias.c (nonoverlapping_memrefs): Use REGNO_PTR_FRAME_P. * emit-rtl.c (change_address): Fix typo in default alignment. (adjust_address_1): Use mode of NEW, not MODE, when setting size. * expr.c (highest_pow2_factor, case WITH_RECORD_EXPR): New case. * rtl.h (REGNO_PTR_FRAME_P): New macro. * expr.c (store_field): Pass tree instead of max size; callers changed. Change handling of alignment. Only copy to_rtx if is TARGET. (expand_expr_unaligned): Delete; callers now use expand_expr. (emit_cmp_insn): No longer take ALIGN parm; all callers changed. (expand_assignment): Change handling of alignment. Only copy to_rtx if was original. (get_inner_reference): No longer return alginment; callers changed. (expand_expr, case COMPONENT_REF): Change handling of alignment. (expand_expr, case ADDR_EXPR): Make copy if not sufficiently aligned. (compare_from_rtx): Delete ALIGN parm; all callers changed. (do_compare_rtx_and_jump): Likewise. * expr.h: Reflect above changes. * tree.h: Likewise. * dwarf2out.c (loc_descriptor_from_tree): Remove ALIGN parameter to get_inner_reference. * except.c: Remove ALIGN parameter in call to emit_cmp_and_jump_insns. * explow.c: Likewise. * loop.c: Likewise. * optabs.c: Likewise. (prepare_cmp_insn): Now static; remove ALIGN parm. Callers changed. (emit_cmp_and_jump_insns): Remove ALIGN parm; all callers changed. * fold-const.c: Remove PALIGN in calls to get_inner_reference. * function.c (assign_stack_temp_for_type): No longer static. * optabs.h (emit_cmp_insn): Remove ALIGN parm. (prepare_cmp_insn): Delete declaration. * rtl.h (assign_stack_temp_for_type): Add declaration. * config/d30v/d30v.c: Reflect above changes. * config/i860/i860.c, config/ia64/ia64.c: Likewise. * config/rs6000/rs6000.c, config/sh/sh.c: Likewise. * ada/trans.c, ada/utils2.c: Remove PALIGN parameter to get_inner_reference. From-SVN: r47075
2001-11-15 23:44:58 +00:00
EQ, NULL_RTX, word_mode, 0, region->label);
except.h (struct eh_queue): Add `next' pointer. * except.h (struct eh_queue): Add `next' pointer. (struct eh_status): Make x_ehqueue a pointer. (push_ehqueue): Declare. (pop_ehqueue): Likewise. * except.c (expand_eh_region_end): Adjust now that ehqueue is a pointer. (expand_fixup_region_end): Likewise. (expand_leftover_cleanups): Likewise. (push_ehqueue): Define. (pop_ehqueue): Likewise. (emit_cleanup_handler): Use push_ehqueue and pop_ehqueue rather than doing it inline. (expand_start_all_catch): Adjust now that ehqueue is a pointer. (mark_eh_queue): Mark all level of the queue. (mark_eh_status): Adjust now that ehqueue is a pointer. (init_eh_for_function): Allocate ehqueue. (free_eh_status): Free it. * stmt.c (expand_cleanups): Save the ehqueue around the cleanup expansion for a fixup. From-SVN: r30874
1999-12-12 18:32:36 +00:00
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
/* We delay the generation of the _Unwind_Resume until we generate
landing pads. We emit a marker here so as to get good control
flow data in the meantime. */
region->resume
= emit_jump_insn (gen_rtx_RESX (VOIDmode, region->region_number));
emit_barrier ();
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
seq = get_insns ();
end_sequence ();
Delete SEQUENCE rtl usage outside of reorg and ssa passes. 2002-06-05 David S. Miller <davem@redhat.com> Delete SEQUENCE rtl usage outside of reorg and ssa passes. * rtl.h (gen_sequence, emit_insns, emit_insns_before, emit_insns_before_scope, emit_insns_after, emit_insns_after_scope): Delete declaration. * ada/misc.c (insert_code_for): Use emit_insn* instead of emit_insns_foo. * config/alpha/alpha.c (alpha_set_memflags_1): Abort on SEQUENCE. (alpha_set_memflags): Fix comment. (set_frame_related_p): Use get_insns instead of gen_sequence. * config/alpha/alpha.md (setjmp receiver splitter): Avoid emitting no insns. * config/arm/arm.c (arm_finalize_pic): Use get_insns instead of gen_sequence. (arm_gen_load_multiple, arm_gen_store_multiple): Likewise. * config/fr30/fr30.c (fr30_move_double): Likewise. * config/i386/i386.c (ix86_expand_int_movcc, ix86_expand_movstr): Likewise. * config/ia64/ia64.c (spill_restore_mem): Likewise. * config/ia64/ia64.md (conditional move spliiter): Avoid emitting no insns. * config/m32r/m32r.c (gen_split_move_double): Use get_insns instead of gen_sequence. * config/mips/mips.c (embedded_pic_fnaddr_reg): Likewise. (mips_expand_prologue, mips16_gp_pseudo_reg): Likewise. * config/sh/sh.c (sh_need_epilogue): Likewise. * config/sparc/sparc.md (current_function_calls_alloca, flat): New attributes. (setjmp pattern and split): Use them to avoid splitter which emits no RTL. * genattrtab.c (main): Emit include of function.h * config/stormy16/stormy16.c (xstormy16_split_cbranch): Use get_insns instead of gen_sequence. * config/cris/cris.c (cris_split_movdx): Likewise. * emit-rtl.c (emit_insns*): Kill. (try_split): Expect insn list instead of SEQUENCE. (make_jump_insn_raw, make_call_insn_raw): Fix comments. (emit_*insn*): Reimplement to work with INSN lists and PATTERNs. Make them abort if a SEQUENCE is given and RTL checking is enabled. (emit_*_scope): Don't forget to set scope on final insn. (gen_sequence): Move from here... * ssa.c (gen_sequence): To here as private function. * builtins.c (expand_builtin_apply_args): Use emit_insn_foo, fix comments. (expand_builtin_return, expand_builtin_mathfn): Likewise. (expand_builtin_strlen): Use get_insns instead of gen_sequence. (expand_builtin_saveregs): Use emit_insn_foo, fix comments. (expand_builtin_expect_jump): Use get_insns and fix comments. * calls.c (try_to_integrate): Use emit_insn_foo. (expand_call, emit_library_call_value_1): Likewise. * expr.c (emit_queue): Handle insn lists instead of SEQUENCE. (emit_move_insn_1): Use get_insns instead of gen_sequence. (expand_expr): Use emit_insn_foo. * cfgrtl.c (commit_one_edge_insertion): Use emit_insn_foo. * except.c (build_post_landing_pads): Likewise. * flow.c (attempt_auto_inc): Likewise. * stmt.c (expand_fixup, fixup_gotos, expand_nl_handler_label, expand_nl_goto_receivers, expand_decl_cleanup): Likewise. * function.c (fixup_var_refs_insn): Use get_insns instead of gen_sequence. (fixup_var_refs_1): Likewise and expect insn list from gen_foo. (fixup_memory_subreg): Use get_insns instead of gen_sequence. (fixup_stack_1, purge_addressof_1, expand_main_function, get_arg_pointer_save_area): Likewise. (optimize_bit_field, instantiate_virtual_regs_1, assign_parms, expand_function_end): Use emit_insn_foo. (record_insns, keep_stack_depressed): Work with insn list instead of SEQUENCE, fix comments. * ifcvt.c (noce_emit_store_flag, noce_try_store_flag, noce_try_store_flag_constants, noce_try_store_flag_inc, noce_try_store_flag_mask, noce_emit_cmove, noce_try_cmove_arith, noce_try_minmax, noce_try_abs): Use emit_insn_foo. (noce_process_if_block): Use get_insns instead of gen_sequence. * optabs.c (add_equal_note): Work with insn list, fix comments. (expand_binop): Expect insn list from GEN_FCN(), use emit_insn_foo. (expand_unop, expand_complex_abs, expand_unop_insn, expand_no_conflict_block): Likewise. (gen_move_insn): Use get_insns instead of gen_sequence. (gen_cond_trap): Likewise. * integrate.c (copy_rtx_and_substitute): Likewise. (emit_initial_value_sets): Use emit_insn_foo. * reload1.c (emit_output_reload_insns, emit_reload_insns): Likewise. (fixup_abnormal_edges): Avoid losing REG_NOTES more intelligently now that RTL generators give insn lists. * sibcall.c (replace_call_placeholder): Use emit_insn_foo. * doloop.c (doloop_modify, doloop_modify_runtime): Use get_insns instead of gen_sequence. (doloop_optimize): Work with insn lists instead of SEQUENCE rtl. * explow.c (emit_stack_save, emit_stack_restore): Use get_insns instead of gen_sequence. * loop.c (move_movables, emit_prefetch_instructions, gen_add_mult, check_dbra_loop, gen_load_of_final_value): Likewise. (loop_regs_update): Work with insn list instead of SEQUENCE rtl. (product_cheap_p): Likewise, and add commentary about RTL wastage here. * lcm.c (optimize_mode_switching): Use get_insns instead of gen_sequence. * profile.c (gen_edge_profiler): Likewise. * regmove.c (copy_src_to_dest): Likewise. * reg-stack.c (compensate_edge): Likewise and fix comment. * gcse.c (process_insert_insn): Likewise. (insert_insn_end_bb): Work with insn list instead of SEQUENCE rtl. * jump.c (delete_prior_computation): Update comment. * genemit.c (gen_expand, gen_split, main): Use get_insns instead of gen_sequence, update comments to match. * recog.c (peephole2_optimize): Work with insn lists instead of SEQUENCE rtl. * sched-vis.c (print_pattern): Abort on SEQUENCE. * unroll.c (unroll_loop, find_splittable_givs, final_giv_value): Use get_insns instead of gen_sequence. (copy_loop_body): Likewise and don't emit dummy NOTE. * genrecog.c: Don't mention SEQUENCE rtl in comments. * combine.c (try_combine): Expect insn lists from split generator. * reorg.c (relax_delay_slots): Emit SEQUENCE into insn list by hand. From-SVN: r54497
2002-06-11 05:22:48 -07:00
emit_insn_before (seq, region->label);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
break;
except.h (struct eh_queue): Add `next' pointer. * except.h (struct eh_queue): Add `next' pointer. (struct eh_status): Make x_ehqueue a pointer. (push_ehqueue): Declare. (pop_ehqueue): Likewise. * except.c (expand_eh_region_end): Adjust now that ehqueue is a pointer. (expand_fixup_region_end): Likewise. (expand_leftover_cleanups): Likewise. (push_ehqueue): Define. (pop_ehqueue): Likewise. (emit_cleanup_handler): Use push_ehqueue and pop_ehqueue rather than doing it inline. (expand_start_all_catch): Adjust now that ehqueue is a pointer. (mark_eh_queue): Mark all level of the queue. (mark_eh_status): Adjust now that ehqueue is a pointer. (init_eh_for_function): Allocate ehqueue. (free_eh_status): Free it. * stmt.c (expand_cleanups): Save the ehqueue around the cleanup expansion for a fixup. From-SVN: r30874
1999-12-12 18:32:36 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_CLEANUP:
except.c (convert_from_eh_region_ranges_1): Smash REG_EH_REGION notes for nothrow calls if flag_forced_unwind_exceptions. * except.c (convert_from_eh_region_ranges_1): Smash REG_EH_REGION notes for nothrow calls if flag_forced_unwind_exceptions. (build_post_landing_pads): Mind flag_forced_unwind_exceptions. (sjlj_find_directly_reachable_regions): Likewise. (reachable_handlers): Likewise. (can_throw_external): Likewise. (collect_one_action_chain): Record cleanups after catch-all and must-not-throw if flag_forced_unwind_exceptions. * flags.h (flag_forced_unwind_exceptions): Declare. * toplev.c (flag_forced_unwind_exceptions): New. (lang_independent_options): Add it. * doc/invoke.text: Add it. * g++.dg/eh/forced1.C: New. * g++.dg/eh/forced2.C: New. From-SVN: r65158
2003-04-01 23:08:16 -08:00
case ERT_MUST_NOT_THROW:
except.c: Revert 04-01 and 04-02 forced-unwind changes. gcc/ * except.c: Revert 04-01 and 04-02 forced-unwind changes. * flags.h, toplev.c, doc/invoke.texi: Likewise. * unwind-dw2.c (_Unwind_GetCFA): Fix ptr->int conversion warning. * unwind.inc (_Unwind_DeleteException): Check for null exception_cleanup. * unwind-sjlj.c (_Unwind_SjLj_Resume_or_Rethrow): New. * unwind.inc (_Unwind_Resume_or_Rethrow): New. * unwind.h: Declare them. * libgcc-std.ver (GCC_3.3): Export them. gcc/cp/ * cfns.gperf: Comment out POSIX thread cancellation points, plus abort and raise. * cfns.h: Regenerate. gcc/testsuite/ * g++.dg/eh/forced1.C: Expect catch-all handlers to run. Verify exception_cleanup not called for rethrows. * g++.dg/eh/forced2.C: Test that exception_cleanup is called when exiting catch block without rethrowing. * g++.dg/eh/forced3.C: New. * g++.dg/eh/forced4.C: New. libstdc++-v3/ * libsupc++/eh_catch.cc (__cxa_begin_catch): Handle foreign exceptions. (__cxa_end_catch): Likewise. * libsupc++/eh_throw.cc (__cxa_rethrow): Likewise. Use _Unwind_Resume_or_Rethrow. * libsupc++/eh_personality.cc (empty_exception_spec): New. (PERSONALITY_FUNCTION): Don't ignore terminate or catch-all for _UA_FORCE_UNWIND. Honor empty filter spec for foreign exceptions. Don't push terminate/unexpected to cxa functions. (__cxa_call_unexpected): Remove foreign exception fixmes. From-SVN: r66583
2003-05-07 15:11:38 -07:00
region->post_landing_pad = region->label;
except.c (convert_from_eh_region_ranges_1): Smash REG_EH_REGION notes for nothrow calls if flag_forced_unwind_exceptions. * except.c (convert_from_eh_region_ranges_1): Smash REG_EH_REGION notes for nothrow calls if flag_forced_unwind_exceptions. (build_post_landing_pads): Mind flag_forced_unwind_exceptions. (sjlj_find_directly_reachable_regions): Likewise. (reachable_handlers): Likewise. (can_throw_external): Likewise. (collect_one_action_chain): Record cleanups after catch-all and must-not-throw if flag_forced_unwind_exceptions. * flags.h (flag_forced_unwind_exceptions): Declare. * toplev.c (flag_forced_unwind_exceptions): New. (lang_independent_options): Add it. * doc/invoke.text: Add it. * g++.dg/eh/forced1.C: New. * g++.dg/eh/forced2.C: New. From-SVN: r65158
2003-04-01 23:08:16 -08:00
break;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_CATCH:
case ERT_THROW:
/* Nothing to do. */
break;
default:
abort ();
}
}
}
except.h (struct eh_entry): Add goto_entry_p. * except.h (struct eh_entry): Add goto_entry_p. (eh_region_from_symbol): Remove prototype. * except.c (find_func_region_from_symbol): New function. (emit_cleanup_handler): Likewise. (eh_region_from_symbol): Make it static. (add_new_handler): Verify the argument. (find_func_region): Update comment. (expand_eh_region_end): Expand handlers here, rater than waiting until expand_leftover_cleanups or start_all_catch. (expand_leftover_cleanups): Don't expand here. (expand_start_all_catch): Or here. (expand_rethrow): Check the return value from find_func_region. * function.c (expand_function_end): Emit the catch_clauses. From-SVN: r30576
1999-11-18 17:50:56 +00:00
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
/* Replace RESX patterns with jumps to the next handler if any, or calls to
_Unwind_Resume otherwise. */
except.h (struct eh_entry): Add goto_entry_p. * except.h (struct eh_entry): Add goto_entry_p. (eh_region_from_symbol): Remove prototype. * except.c (find_func_region_from_symbol): New function. (emit_cleanup_handler): Likewise. (eh_region_from_symbol): Make it static. (add_new_handler): Verify the argument. (find_func_region): Update comment. (expand_eh_region_end): Expand handlers here, rater than waiting until expand_leftover_cleanups or start_all_catch. (expand_leftover_cleanups): Don't expand here. (expand_start_all_catch): Or here. (expand_rethrow): Check the return value from find_func_region. * function.c (expand_function_end): Emit the catch_clauses. From-SVN: r30576
1999-11-18 17:50:56 +00:00
static void
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
connect_post_landing_pads ()
except.h (struct eh_entry): Add goto_entry_p. * except.h (struct eh_entry): Add goto_entry_p. (eh_region_from_symbol): Remove prototype. * except.c (find_func_region_from_symbol): New function. (emit_cleanup_handler): Likewise. (eh_region_from_symbol): Make it static. (add_new_handler): Verify the argument. (find_func_region): Update comment. (expand_eh_region_end): Expand handlers here, rater than waiting until expand_leftover_cleanups or start_all_catch. (expand_leftover_cleanups): Don't expand here. (expand_start_all_catch): Or here. (expand_rethrow): Check the return value from find_func_region. * function.c (expand_function_end): Emit the catch_clauses. From-SVN: r30576
1999-11-18 17:50:56 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int i;
except.h (eh_status): Adjust documentation for x_protect_list. * except.h (eh_status): Adjust documentation for x_protect_list. (begin_protect_partials): New function. * except.c (enqueue_eh_entry): Fix formatting. (get_first_handler): Add consistency check. (add_partial_entry): Adjust usage of protect_list. (emit_cleanup_handler): Save and restore ehqueue. (expand_start_all_catch): Add comment. (begin_protect_partials): New function. (end_protect_partials): Adjust usage of protect_list. (init_eh_for_function): Use xcalloc. From-SVN: r30667
1999-11-25 19:21:27 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (i = cfun->eh->last_region_number; i > 0; --i)
{
struct eh_region *region = cfun->eh->region_array[i];
struct eh_region *outer;
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
rtx seq;
except.h (struct eh_entry): Add goto_entry_p. * except.h (struct eh_entry): Add goto_entry_p. (eh_region_from_symbol): Remove prototype. * except.c (find_func_region_from_symbol): New function. (emit_cleanup_handler): Likewise. (eh_region_from_symbol): Make it static. (add_new_handler): Verify the argument. (find_func_region): Update comment. (expand_eh_region_end): Expand handlers here, rater than waiting until expand_leftover_cleanups or start_all_catch. (expand_leftover_cleanups): Don't expand here. (expand_start_all_catch): Or here. (expand_rethrow): Check the return value from find_func_region. * function.c (expand_function_end): Emit the catch_clauses. From-SVN: r30576
1999-11-18 17:50:56 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Mind we don't process a region more than once. */
if (!region || region->region_number != i)
continue;
except.h (struct eh_entry): Add goto_entry_p. * except.h (struct eh_entry): Add goto_entry_p. (eh_region_from_symbol): Remove prototype. * except.c (find_func_region_from_symbol): New function. (emit_cleanup_handler): Likewise. (eh_region_from_symbol): Make it static. (add_new_handler): Verify the argument. (find_func_region): Update comment. (expand_eh_region_end): Expand handlers here, rater than waiting until expand_leftover_cleanups or start_all_catch. (expand_leftover_cleanups): Don't expand here. (expand_start_all_catch): Or here. (expand_rethrow): Check the return value from find_func_region. * function.c (expand_function_end): Emit the catch_clauses. From-SVN: r30576
1999-11-18 17:50:56 +00:00
except.c (reachable_handlers): Step out one level from a RESX. * except.c (reachable_handlers): Step out one level from a RESX. * except.c (struct eh_region): Rename 'last' to 'resume'. (mark_eh_region, duplicate_eh_region_1): Adjust. (expand_eh_region_end_cleanup): Remember the jump, not the barrier. (build_post_landing_pads): Likewise. (expand_end_catch, expand_eh_region_end_allowed): Don't set it. (expand_eh_region_end_must_not_throw): Likewise. (connect_post_landing_pads): Thread (only) regions with non-deleted resume insns. * except.c (expand_eh_region_end_cleanup): Save the EH return data registers around the cleanup. (get_exception_filter): New fn. (finish_eh_generation): Use it. From-SVN: r41528
2001-04-24 20:23:10 -04:00
/* If there is no RESX, or it has been deleted by flow, there's
nothing to fix up. */
if (! region->resume || INSN_DELETED_P (region->resume))
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
continue;
except.h (eh_status): Adjust documentation for x_protect_list. * except.h (eh_status): Adjust documentation for x_protect_list. (begin_protect_partials): New function. * except.c (enqueue_eh_entry): Fix formatting. (get_first_handler): Add consistency check. (add_partial_entry): Adjust usage of protect_list. (emit_cleanup_handler): Save and restore ehqueue. (expand_start_all_catch): Add comment. (begin_protect_partials): New function. (end_protect_partials): Adjust usage of protect_list. (init_eh_for_function): Use xcalloc. From-SVN: r30667
1999-11-25 19:21:27 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Search for another landing pad in this function. */
for (outer = region->outer; outer ; outer = outer->outer)
if (outer->post_landing_pad)
break;
except.h (struct eh_entry): Add goto_entry_p. * except.h (struct eh_entry): Add goto_entry_p. (eh_region_from_symbol): Remove prototype. * except.c (find_func_region_from_symbol): New function. (emit_cleanup_handler): Likewise. (eh_region_from_symbol): Make it static. (add_new_handler): Verify the argument. (find_func_region): Update comment. (expand_eh_region_end): Expand handlers here, rater than waiting until expand_leftover_cleanups or start_all_catch. (expand_leftover_cleanups): Don't expand here. (expand_start_all_catch): Or here. (expand_rethrow): Check the return value from find_func_region. * function.c (expand_function_end): Emit the catch_clauses. From-SVN: r30576
1999-11-18 17:50:56 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
start_sequence ();
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (outer)
emit_jump (outer->post_landing_pad);
else
rtl.h (LCT_THROW): New. * rtl.h (LCT_THROW): New. * calls.c (emit_library_call_value_1): Handle it. * except.c (connect_post_landing_pads): Use it. From-SVN: r41070
2001-04-03 17:48:51 -07:00
emit_library_call (unwind_resume_libfunc, LCT_THROW,
except.c (expand_eh_region_end_cleanup): Change exception pointer from Pmode to ptr_mode. * gcc/except.c (expand_eh_region_end_cleanup): Change exception pointer from Pmode to ptr_mode. (get_exception_pointer): Ditto. (connect_post_landing_pads): Ditto. (dw2_build_landing_pads): Ditto. From-SVN: r55341
2002-07-09 15:28:22 +00:00
VOIDmode, 1, cfun->eh->exc_ptr, ptr_mode);
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
seq = get_insns ();
end_sequence ();
Delete SEQUENCE rtl usage outside of reorg and ssa passes. 2002-06-05 David S. Miller <davem@redhat.com> Delete SEQUENCE rtl usage outside of reorg and ssa passes. * rtl.h (gen_sequence, emit_insns, emit_insns_before, emit_insns_before_scope, emit_insns_after, emit_insns_after_scope): Delete declaration. * ada/misc.c (insert_code_for): Use emit_insn* instead of emit_insns_foo. * config/alpha/alpha.c (alpha_set_memflags_1): Abort on SEQUENCE. (alpha_set_memflags): Fix comment. (set_frame_related_p): Use get_insns instead of gen_sequence. * config/alpha/alpha.md (setjmp receiver splitter): Avoid emitting no insns. * config/arm/arm.c (arm_finalize_pic): Use get_insns instead of gen_sequence. (arm_gen_load_multiple, arm_gen_store_multiple): Likewise. * config/fr30/fr30.c (fr30_move_double): Likewise. * config/i386/i386.c (ix86_expand_int_movcc, ix86_expand_movstr): Likewise. * config/ia64/ia64.c (spill_restore_mem): Likewise. * config/ia64/ia64.md (conditional move spliiter): Avoid emitting no insns. * config/m32r/m32r.c (gen_split_move_double): Use get_insns instead of gen_sequence. * config/mips/mips.c (embedded_pic_fnaddr_reg): Likewise. (mips_expand_prologue, mips16_gp_pseudo_reg): Likewise. * config/sh/sh.c (sh_need_epilogue): Likewise. * config/sparc/sparc.md (current_function_calls_alloca, flat): New attributes. (setjmp pattern and split): Use them to avoid splitter which emits no RTL. * genattrtab.c (main): Emit include of function.h * config/stormy16/stormy16.c (xstormy16_split_cbranch): Use get_insns instead of gen_sequence. * config/cris/cris.c (cris_split_movdx): Likewise. * emit-rtl.c (emit_insns*): Kill. (try_split): Expect insn list instead of SEQUENCE. (make_jump_insn_raw, make_call_insn_raw): Fix comments. (emit_*insn*): Reimplement to work with INSN lists and PATTERNs. Make them abort if a SEQUENCE is given and RTL checking is enabled. (emit_*_scope): Don't forget to set scope on final insn. (gen_sequence): Move from here... * ssa.c (gen_sequence): To here as private function. * builtins.c (expand_builtin_apply_args): Use emit_insn_foo, fix comments. (expand_builtin_return, expand_builtin_mathfn): Likewise. (expand_builtin_strlen): Use get_insns instead of gen_sequence. (expand_builtin_saveregs): Use emit_insn_foo, fix comments. (expand_builtin_expect_jump): Use get_insns and fix comments. * calls.c (try_to_integrate): Use emit_insn_foo. (expand_call, emit_library_call_value_1): Likewise. * expr.c (emit_queue): Handle insn lists instead of SEQUENCE. (emit_move_insn_1): Use get_insns instead of gen_sequence. (expand_expr): Use emit_insn_foo. * cfgrtl.c (commit_one_edge_insertion): Use emit_insn_foo. * except.c (build_post_landing_pads): Likewise. * flow.c (attempt_auto_inc): Likewise. * stmt.c (expand_fixup, fixup_gotos, expand_nl_handler_label, expand_nl_goto_receivers, expand_decl_cleanup): Likewise. * function.c (fixup_var_refs_insn): Use get_insns instead of gen_sequence. (fixup_var_refs_1): Likewise and expect insn list from gen_foo. (fixup_memory_subreg): Use get_insns instead of gen_sequence. (fixup_stack_1, purge_addressof_1, expand_main_function, get_arg_pointer_save_area): Likewise. (optimize_bit_field, instantiate_virtual_regs_1, assign_parms, expand_function_end): Use emit_insn_foo. (record_insns, keep_stack_depressed): Work with insn list instead of SEQUENCE, fix comments. * ifcvt.c (noce_emit_store_flag, noce_try_store_flag, noce_try_store_flag_constants, noce_try_store_flag_inc, noce_try_store_flag_mask, noce_emit_cmove, noce_try_cmove_arith, noce_try_minmax, noce_try_abs): Use emit_insn_foo. (noce_process_if_block): Use get_insns instead of gen_sequence. * optabs.c (add_equal_note): Work with insn list, fix comments. (expand_binop): Expect insn list from GEN_FCN(), use emit_insn_foo. (expand_unop, expand_complex_abs, expand_unop_insn, expand_no_conflict_block): Likewise. (gen_move_insn): Use get_insns instead of gen_sequence. (gen_cond_trap): Likewise. * integrate.c (copy_rtx_and_substitute): Likewise. (emit_initial_value_sets): Use emit_insn_foo. * reload1.c (emit_output_reload_insns, emit_reload_insns): Likewise. (fixup_abnormal_edges): Avoid losing REG_NOTES more intelligently now that RTL generators give insn lists. * sibcall.c (replace_call_placeholder): Use emit_insn_foo. * doloop.c (doloop_modify, doloop_modify_runtime): Use get_insns instead of gen_sequence. (doloop_optimize): Work with insn lists instead of SEQUENCE rtl. * explow.c (emit_stack_save, emit_stack_restore): Use get_insns instead of gen_sequence. * loop.c (move_movables, emit_prefetch_instructions, gen_add_mult, check_dbra_loop, gen_load_of_final_value): Likewise. (loop_regs_update): Work with insn list instead of SEQUENCE rtl. (product_cheap_p): Likewise, and add commentary about RTL wastage here. * lcm.c (optimize_mode_switching): Use get_insns instead of gen_sequence. * profile.c (gen_edge_profiler): Likewise. * regmove.c (copy_src_to_dest): Likewise. * reg-stack.c (compensate_edge): Likewise and fix comment. * gcse.c (process_insert_insn): Likewise. (insert_insn_end_bb): Work with insn list instead of SEQUENCE rtl. * jump.c (delete_prior_computation): Update comment. * genemit.c (gen_expand, gen_split, main): Use get_insns instead of gen_sequence, update comments to match. * recog.c (peephole2_optimize): Work with insn lists instead of SEQUENCE rtl. * sched-vis.c (print_pattern): Abort on SEQUENCE. * unroll.c (unroll_loop, find_splittable_givs, final_giv_value): Use get_insns instead of gen_sequence. (copy_loop_body): Likewise and don't emit dummy NOTE. * genrecog.c: Don't mention SEQUENCE rtl in comments. * combine.c (try_combine): Expect insn lists from split generator. * reorg.c (relax_delay_slots): Emit SEQUENCE into insn list by hand. From-SVN: r54497
2002-06-11 05:22:48 -07:00
emit_insn_before (seq, region->resume);
basic-block.h (flow_delete_insn, [...]): Kill. * basic-block.h (flow_delete_insn, flow_delete_insn_chain): Kill. * cfg.c (delete_insn): Rename from ....; use remove_insn; do not remove some labels. (flow_delete_insn): This one. (delete_insn_chain): Rename from ...; do not care labels. (flow_delete_insn_chain): ... this one. (flow_delete_block): Remove the insns one BB has been expunged. (merge_blocks_nomove): Likewise. (try_redirect_by_replacing_jump): Use delete_insn[_chain]; do not care updating BB boundaries. (tidy_fallthru_edge): Likewise. (commit_one_edge_insertion): Likewise. * cfgbuild.c (find_basic_block): Likewise. (find_basic_blocks_1): Likewise. * cfgcleanup.c (merge_blocks_move_predecessor_nojumps): Likewise. (try_crossjump_to_edge): Likewise. (try_optimize_cfg): Likewise. * cse.c (delete_trivially_dead_insns): Likewise. * df.c (df_insn_delete): Likewise. * doloop.c (doloop_modify): Use delete_related_insns. * emit-rtl.c (try_split): Likewise. (remove_insn): Update BB boundaries. * expect.c (connect_post_landing_pads): Use delete_related_insns. * flow.c (delete_dead_jumptables): Use delete_insn[_chain]; do not care updating BB boundaries. (propagate_block_delete_insn): Likewise. (propagate_block_delete_libcall): Likewise. * function.c (delete_handlers): Use delete_related_insns. (thread_prologue_and_epilogue_insns): Likewise. * gcse.c (delete_null_pointer_checks): Use delete_related_insns. * genpeep.c (gen_peephole): Use delete_related_insns. * ifcvt.c (noce_process_if_block): Use delete_insn; do not care updating BB boundaries. (find_cond_trap): Likewise. * integrate.c (save_for_inline): Use delete_related_insns. (copy_insn_list): Likewise. * jump.c (pruge_linie_number_notes): Likewise. (duplicate_loop_exit_test): Likewise. (delete_computation): Likewise. (delete_related_insn): Rename from ...; use delete_insn (delete_insn): ... this one. (redirect_jump): Use delete_related_insns. * loop.c (scan_loop): Likewise. (move_movables): Likewise. (find_and_verify_loops): Likewise. (check_dbra_loop): Likewise. * recog.c (peephole2_optimize): Likewise. * reg-stack.c (delete_insn_for_stacker): Remove. (move_for_stack_reg): Use delete_insn. * regmove.c (combine_stack_adjustments_for_block): Likewise. * reload1.c (delete_address_reloads): Use delete_related_insns. (fixup_abnormal_edges): Use delete_insn. * recog.c (emit_delay_sequence): Use delete_related_insns. (delete_from-delay_slot): Likewise. (delete_scheduled_jump): likewise. (optimize_skip): Likewise. (try_merge_delay_insns): Likewise. (full_simple_delay_slots): Likewise. (fill_slots_from_thread): Likewise. (relax_delay_slots): Likewise. (make_return_insns): Likewise. (dbr_schedule): Likewise. * rtl.h (delete_insn): Rename to delete_related_insns. (delete_insn, delete_insn_chain): New prototypes. * ssa-ccp (sse_fast_dce): Remove deleting of DEF, as it is done by df_insn_delete already. * ssa-dce.c (delete_insn_bb): Use delete_insn. * ssa.c (convert_from_ssa): Use delete_related_insns. * unroll.c (unroll_loop): Likewise. (calculate_giv_inc): Likewise. (copy_loop_body): Likewise. * i386-protos.h (ix86_libcall_value, ix86_function_value, ix86_function_arg_regno_p, ix86_function_arg_boundary, ix86_return_in_memory, ix86_function_value): Declare. * i386.c (x86_64_int_parameter_registers, x86_64_int_return_registers): new static valurables. (x86_64_reg_class): New enum (x86_64_reg_class_name): New array. (classify_argument, examine_argument, construct_container, merge_classes): New static functions. (optimization_options): Enable flag_omit_frame_pointer and disable flag_pcc_struct_return on 64bit. (ix86_libcall_value, ix86_function_value, ix86_function_arg_regno_p, ix86_function_arg_boundary, ix86_return_in_memory, ix86_function_value): New global functions. (init_cumulative_args): Refuse regparm on x86_64, set maybe_vaarg. (function_arg_advance): Handle x86_64 passing conventions. (function_arg): Likewise. * i386.h (FUNCTION_ARG_BOUNDARY): New macro. (RETURN_IN_MEMORY): Move offline. (FUNCTION_VALUE, LIBCALL_VALUE): Likewise. (FUNCTION_VALUE_REGNO_P): New macro. (FUNCTION_ARG_REGNO_P): Move offline. (struct ix86_args): Add maybe_vaarg. * next.h (FUNCTION_VALUE_REGNO_P): Delete. * unix.h (FUNCTION_VALUE_REGNO_P): Delete. From-SVN: r45726
2001-09-21 14:55:18 +02:00
delete_insn (region->resume);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
}
}
static void
dw2_build_landing_pads ()
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
regmove.c (replace_in_call_usage): Fix warnings. 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * regmove.c (replace_in_call_usage): Fix warnings. * sched-deps.c (add_dependence): Fix warnings. * simplify-rtx.c (simplify_subreg): Likewise. Return NULL_RTX instead of NULL. * reg-stack.c (emit_swap_insn): Eliminate warnings. (subst_asm_stack_regs): Likewise. * combine.c (num_sign_bit_copies): Cast bitwidth to int to avoid warnings. * dwarf2out.c (output_call_frame_info): Declare i as int. (build_abbrev_table): Declare n_alloc as int. (dwarf2out_finish): Initialize die. * except.c: Declare sjlj_funcdef_number as unsigned. (connect_post_landing_pads): Declare j as unsigned. (convert_to_eh_region_ranges): Initialize call_site. (output_function_exception_table): Initialize tt_format_size. * expr.c (move_by_pieces_1): Initialize to1. (store_constructor): Initialize minelt and maxelt. * flow.c (mark_regs_live_at_end): Declare i as unsigned. * function.c (instantiate_decls): Avoid signed/unsigned warning. * c-decl.c (combine_parm_decls): Unused, remove. * c-tree.h: Remove prototype for combine_parm_decls. * reload.c (push_reload): Fix warning. (regno_clobbered_p): Likewise. * reload1.c (replace_pseudos_in_call_usage): Likewise. (reload_combine): Likewise. * bitmap.c: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.h: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.c (bitmap_operation): Change user. * bitmap.h (EXECUTE_IF_AND_COMPL_IN_BITMAP): Likewise. For cp/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * call.c (build_op_delete_call): Initialize fn. (convert_like_real): Delete conditional. (joust): Initialize *w and *l. * class.c: Add prototype for binfo_ctor_vtable. (get_primary_binfo): Initialize result. * init.c (build_java_class_ref): Initialize name. * typeck.c (unary_complex_lvalue): Do not duplicate the argument to modify, pre-, or post-increment when used as an lvalue and when the argument has side-effects. For ch/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * ch-tree.h: Remove prototype for combine_parm_decls, unused function. From-SVN: r43893
2001-07-10 12:38:10 +02:00
int i;
unsigned int j;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (i = cfun->eh->last_region_number; i > 0; --i)
{
struct eh_region *region = cfun->eh->region_array[i];
rtx seq;
except.c (dw2_build_landing_pads): New local clobbers_hard_regs. * except.c (dw2_build_landing_pads): New local clobbers_hard_regs. Emit an ASM_INPUT as a scheduling barrier after clobbers. Fixes c++/4012. From-SVN: r45667
2001-09-17 23:16:28 +00:00
bool clobbers_hard_regs = false;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Mind we don't process a region more than once. */
if (!region || region->region_number != i)
continue;
except.h: Add outer_context_label_stack. * except.h: Add outer_context_label_stack. * except.c: Likewise. (expand_start_all_catch): Push the outer_context for the try block onto outer_context_label_stack. (expand_end_all_catch): Use it and pop it. From-SVN: r16645
1997-11-21 20:20:41 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (region->type != ERT_CLEANUP
&& region->type != ERT_TRY
&& region->type != ERT_ALLOWED_EXCEPTIONS)
continue;
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
start_sequence ();
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
region->landing_pad = gen_label_rtx ();
emit_label (region->landing_pad);
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#ifdef HAVE_exception_receiver
if (HAVE_exception_receiver)
emit_insn (gen_exception_receiver ());
else
#endif
#ifdef HAVE_nonlocal_goto_receiver
if (HAVE_nonlocal_goto_receiver)
emit_insn (gen_nonlocal_goto_receiver ());
else
#endif
{ /* Nothing */ }
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* If the eh_return data registers are call-saved, then we
won't have considered them clobbered from the call that
threw. Kill them now. */
for (j = 0; ; ++j)
{
unsigned r = EH_RETURN_DATA_REGNO (j);
if (r == INVALID_REGNUM)
break;
if (! call_used_regs[r])
except.c (dw2_build_landing_pads): New local clobbers_hard_regs. * except.c (dw2_build_landing_pads): New local clobbers_hard_regs. Emit an ASM_INPUT as a scheduling barrier after clobbers. Fixes c++/4012. From-SVN: r45667
2001-09-17 23:16:28 +00:00
{
emit_insn (gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (Pmode, r)));
clobbers_hard_regs = true;
}
}
if (clobbers_hard_regs)
{
/* @@@ This is a kludge. Not all machine descriptions define a
blockage insn, but we must not allow the code we just generated
to be reordered by scheduling. So emit an ASM_INPUT to act as
c-common.h: Fix comment formatting. * c-common.h: Fix comment formatting. * c-dump.c: Likewise. * cfg.c: Likewise. * diagnostic.h: Likewise. * except.c: Likewise. * gcc.h: Likewise. * gcov-io.h: Likewise. * genattrtab.c: Likewise. * output.h: Likewise. * predict.h: Likewise. * reload1.c: Likewise. * reload.h: Likewise. * resource.h: Likewise. * scan.h: Likewise. * system.h: Likewise. * tree.h: Likewise. * tree-inline.c: Likewise. * tsystem.h: Likewise. * varasm.c: Likewise. * xcoffout.h: Likewise. From-SVN: r46122
2001-10-09 14:03:13 +00:00
blockage insn. */
except.c (dw2_build_landing_pads): New local clobbers_hard_regs. * except.c (dw2_build_landing_pads): New local clobbers_hard_regs. Emit an ASM_INPUT as a scheduling barrier after clobbers. Fixes c++/4012. From-SVN: r45667
2001-09-17 23:16:28 +00:00
emit_insn (gen_rtx_ASM_INPUT (VOIDmode, ""));
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
}
./: * libgcc2.c (__throw): Use __builtin_return_addr instead of __eh_pc. * except.c: Lose outer_context_label_stack. (expand_eh_region_end): Rethrow from outer_context here. (expand_fixup_region_end): Let expand_eh_region_end do the rethrow. (expand_internal_throw): Take no args. (expand_internal_throw_indirect): Lose. (expand_leftover_cleanups, expand_start_all_catch): Use expand_rethrow. (expand_start_all_catch): Start a rethrow region. (expand_end_all_catch): End it. (expand_rethrow): New fn. * except.h: Reflect above changes. cp/: * except.c (expand_end_catch_block): Lose rethrow region. (expand_start_catch_block): Likewise. (expand_end_catch_block): Don't expand_leftover_cleanups. From-SVN: r16937
1997-12-04 09:41:38 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_move_insn (cfun->eh->exc_ptr,
except.c (expand_eh_region_end_cleanup): Change exception pointer from Pmode to ptr_mode. * gcc/except.c (expand_eh_region_end_cleanup): Change exception pointer from Pmode to ptr_mode. (get_exception_pointer): Ditto. (connect_post_landing_pads): Ditto. (dw2_build_landing_pads): Ditto. From-SVN: r55341
2002-07-09 15:28:22 +00:00
gen_rtx_REG (ptr_mode, EH_RETURN_DATA_REGNO (0)));
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_move_insn (cfun->eh->filter,
except.c (dw2_build_landing_pads): Use word_mode, not Pmode, as ncessary. * except.c (dw2_build_landing_pads): Use word_mode, not Pmode, as ncessary. (expand_eh_return): Convert between word_mode and Pmode. * unwind-dw2.c (extract_cie_info): Do not assume words and pointers are the same size. (execute_stack_op): Likewise. (execute_cfa_program): Likewise. (uw_frame_state_for): Likewise. (uw_update_context_1): Likewise. * unwind.inc (_Unwind_Reason_Code): Likewise. * config/mips/mips.h (EH_RETURN_DATA_REGNO): Define. (EH_RETURN_STACKADJ_RTX): Likewise. * config/mips/mips.c (compute_frame_size): Make space for saving EH return registers. (mips_expand_epilogue): Handle EH stack adjustments. * config/mips/mips.md (eh_return): New pattern. (eh_set_lr_si): Likewise. (eh_set_lr_di): Likewise. Add splitter to perform EH return after reload. From-SVN: r42332
2001-05-19 17:35:24 -07:00
gen_rtx_REG (word_mode, EH_RETURN_DATA_REGNO (1)));
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
seq = get_insns ();
end_sequence ();
Have -fnew-exceptions actually use the runtime field, and not generate runtime checking code inside each handler. Have -fnew-exceptions actually use the runtime field, and not generate runtime checking code inside each handler. THis works at low opt, but not with optimization at the moment. Tue Jun 23 10:06:07 EDT 1998 Andrew MacLeod (amacleod@cygnus.com) * eh-common.h (struct __eh_info): Remove coerced value field. * libgcc2.c (find_exception_handler): Don't set coerced_value field. * except.c (get_dynamic_handler_chain, get_dynamic_cleanup_chain): Use POINTER_SIZE instead of Pmode. (expand_start_all_catch): Call start_catch_handler() if we are not using new style exceptions. 1998-06-22 Andrew MacLeod (amacleod@cygnus.com) * parse.y (function_try_block): Don't call start_catch_handler. * except.c (call_eh_info): Remove coerced field from declaration. (build_eh_type_type_ref): New function to create an address of a rtti function for the new style exception tables. (expand_start_catch_block): Split function, this contains the common part. (process_start_catch_block_old): New function to perform the rest of expand_start_catch_block under old style exceptions. (process_start_catch_block_old): New function to perform the rest of expand_start_catch_block under new style exceptions. (expand_end_catch_block): Only pop the false label off the stack under the old style of exceptions. * semantics.c (finish_try_block): Don't call start_catch_handler. * exception.cc (struct cp_eh_info): Add original_value field. (__cplus_type_matcher): Perform type matching on the original exception value, and if we have a match, set the current value. (__cp_push_exception): Set the original expcetion value. From-SVN: r20671
1998-06-23 07:10:29 +00:00
Delete SEQUENCE rtl usage outside of reorg and ssa passes. 2002-06-05 David S. Miller <davem@redhat.com> Delete SEQUENCE rtl usage outside of reorg and ssa passes. * rtl.h (gen_sequence, emit_insns, emit_insns_before, emit_insns_before_scope, emit_insns_after, emit_insns_after_scope): Delete declaration. * ada/misc.c (insert_code_for): Use emit_insn* instead of emit_insns_foo. * config/alpha/alpha.c (alpha_set_memflags_1): Abort on SEQUENCE. (alpha_set_memflags): Fix comment. (set_frame_related_p): Use get_insns instead of gen_sequence. * config/alpha/alpha.md (setjmp receiver splitter): Avoid emitting no insns. * config/arm/arm.c (arm_finalize_pic): Use get_insns instead of gen_sequence. (arm_gen_load_multiple, arm_gen_store_multiple): Likewise. * config/fr30/fr30.c (fr30_move_double): Likewise. * config/i386/i386.c (ix86_expand_int_movcc, ix86_expand_movstr): Likewise. * config/ia64/ia64.c (spill_restore_mem): Likewise. * config/ia64/ia64.md (conditional move spliiter): Avoid emitting no insns. * config/m32r/m32r.c (gen_split_move_double): Use get_insns instead of gen_sequence. * config/mips/mips.c (embedded_pic_fnaddr_reg): Likewise. (mips_expand_prologue, mips16_gp_pseudo_reg): Likewise. * config/sh/sh.c (sh_need_epilogue): Likewise. * config/sparc/sparc.md (current_function_calls_alloca, flat): New attributes. (setjmp pattern and split): Use them to avoid splitter which emits no RTL. * genattrtab.c (main): Emit include of function.h * config/stormy16/stormy16.c (xstormy16_split_cbranch): Use get_insns instead of gen_sequence. * config/cris/cris.c (cris_split_movdx): Likewise. * emit-rtl.c (emit_insns*): Kill. (try_split): Expect insn list instead of SEQUENCE. (make_jump_insn_raw, make_call_insn_raw): Fix comments. (emit_*insn*): Reimplement to work with INSN lists and PATTERNs. Make them abort if a SEQUENCE is given and RTL checking is enabled. (emit_*_scope): Don't forget to set scope on final insn. (gen_sequence): Move from here... * ssa.c (gen_sequence): To here as private function. * builtins.c (expand_builtin_apply_args): Use emit_insn_foo, fix comments. (expand_builtin_return, expand_builtin_mathfn): Likewise. (expand_builtin_strlen): Use get_insns instead of gen_sequence. (expand_builtin_saveregs): Use emit_insn_foo, fix comments. (expand_builtin_expect_jump): Use get_insns and fix comments. * calls.c (try_to_integrate): Use emit_insn_foo. (expand_call, emit_library_call_value_1): Likewise. * expr.c (emit_queue): Handle insn lists instead of SEQUENCE. (emit_move_insn_1): Use get_insns instead of gen_sequence. (expand_expr): Use emit_insn_foo. * cfgrtl.c (commit_one_edge_insertion): Use emit_insn_foo. * except.c (build_post_landing_pads): Likewise. * flow.c (attempt_auto_inc): Likewise. * stmt.c (expand_fixup, fixup_gotos, expand_nl_handler_label, expand_nl_goto_receivers, expand_decl_cleanup): Likewise. * function.c (fixup_var_refs_insn): Use get_insns instead of gen_sequence. (fixup_var_refs_1): Likewise and expect insn list from gen_foo. (fixup_memory_subreg): Use get_insns instead of gen_sequence. (fixup_stack_1, purge_addressof_1, expand_main_function, get_arg_pointer_save_area): Likewise. (optimize_bit_field, instantiate_virtual_regs_1, assign_parms, expand_function_end): Use emit_insn_foo. (record_insns, keep_stack_depressed): Work with insn list instead of SEQUENCE, fix comments. * ifcvt.c (noce_emit_store_flag, noce_try_store_flag, noce_try_store_flag_constants, noce_try_store_flag_inc, noce_try_store_flag_mask, noce_emit_cmove, noce_try_cmove_arith, noce_try_minmax, noce_try_abs): Use emit_insn_foo. (noce_process_if_block): Use get_insns instead of gen_sequence. * optabs.c (add_equal_note): Work with insn list, fix comments. (expand_binop): Expect insn list from GEN_FCN(), use emit_insn_foo. (expand_unop, expand_complex_abs, expand_unop_insn, expand_no_conflict_block): Likewise. (gen_move_insn): Use get_insns instead of gen_sequence. (gen_cond_trap): Likewise. * integrate.c (copy_rtx_and_substitute): Likewise. (emit_initial_value_sets): Use emit_insn_foo. * reload1.c (emit_output_reload_insns, emit_reload_insns): Likewise. (fixup_abnormal_edges): Avoid losing REG_NOTES more intelligently now that RTL generators give insn lists. * sibcall.c (replace_call_placeholder): Use emit_insn_foo. * doloop.c (doloop_modify, doloop_modify_runtime): Use get_insns instead of gen_sequence. (doloop_optimize): Work with insn lists instead of SEQUENCE rtl. * explow.c (emit_stack_save, emit_stack_restore): Use get_insns instead of gen_sequence. * loop.c (move_movables, emit_prefetch_instructions, gen_add_mult, check_dbra_loop, gen_load_of_final_value): Likewise. (loop_regs_update): Work with insn list instead of SEQUENCE rtl. (product_cheap_p): Likewise, and add commentary about RTL wastage here. * lcm.c (optimize_mode_switching): Use get_insns instead of gen_sequence. * profile.c (gen_edge_profiler): Likewise. * regmove.c (copy_src_to_dest): Likewise. * reg-stack.c (compensate_edge): Likewise and fix comment. * gcse.c (process_insert_insn): Likewise. (insert_insn_end_bb): Work with insn list instead of SEQUENCE rtl. * jump.c (delete_prior_computation): Update comment. * genemit.c (gen_expand, gen_split, main): Use get_insns instead of gen_sequence, update comments to match. * recog.c (peephole2_optimize): Work with insn lists instead of SEQUENCE rtl. * sched-vis.c (print_pattern): Abort on SEQUENCE. * unroll.c (unroll_loop, find_splittable_givs, final_giv_value): Use get_insns instead of gen_sequence. (copy_loop_body): Likewise and don't emit dummy NOTE. * genrecog.c: Don't mention SEQUENCE rtl in comments. * combine.c (try_combine): Expect insn lists from split generator. * reorg.c (relax_delay_slots): Emit SEQUENCE into insn list by hand. From-SVN: r54497
2002-06-11 05:22:48 -07:00
emit_insn_before (seq, region->post_landing_pad);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct sjlj_lp_info
{
int directly_reachable;
int action_index;
int dispatch_index;
int call_site_index;
};
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static bool
sjlj_find_directly_reachable_regions (lp_info)
struct sjlj_lp_info *lp_info;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
rtx insn;
bool found_one = false;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (insn = get_insns (); insn ; insn = NEXT_INSN (insn))
{
struct eh_region *region;
except.c (sjlj_find_directly_reachable_regions): Don't consider RNL_BLOCKED a directly reachable region. * except.c (sjlj_find_directly_reachable_regions): Don't consider RNL_BLOCKED a directly reachable region. (sjlj_assign_call_site_values): Trust directly_reachable. (sjlj_emit_dispatch_table): Likewise. From-SVN: r47915
2001-12-11 18:58:23 -08:00
enum reachable_code rc;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
tree type_thrown;
rtx note;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! INSN_P (insn))
continue;
Minor tweaks. * except.c (expand_start_catch): Rename to start_catch_handler. (expand_end_catch): Delete function. (expand_end_all_catch): Remove catch status that expand_end_catch use to do. * except.h (expand_start_catch): Rename prototype. (expand_end_catch): Delete prototype. * semantics.c (finish_try_block): Rename expand_start_catch, and delete expand_end_catch. * parse.y (function_try_block): Rename expand_start_catch, and delete expand_end_catch. * except.c (expand_end_eh_spec): Rename expand_start_catch, and delete expand_end_catch. From-SVN: r20379
1998-06-09 13:28:26 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
note = find_reg_note (insn, REG_EH_REGION, NULL_RTX);
if (!note || INTVAL (XEXP (note, 0)) <= 0)
continue;
* except.c (expand_end_all_catch): Fix for sjlj exceptions. From-SVN: r16950
1997-12-04 19:52:49 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
region = cfun->eh->region_array[INTVAL (XEXP (note, 0))];
* except.c (expand_end_all_catch): Fix for sjlj exceptions. From-SVN: r16950
1997-12-04 19:52:49 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
type_thrown = NULL_TREE;
if (region->type == ERT_THROW)
{
type_thrown = region->u.throw.type;
region = region->outer;
}
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Find the first containing region that might handle the exception.
That's the landing pad to which we will transfer control. */
except.c (sjlj_find_directly_reachable_regions): Don't consider RNL_BLOCKED a directly reachable region. * except.c (sjlj_find_directly_reachable_regions): Don't consider RNL_BLOCKED a directly reachable region. (sjlj_assign_call_site_values): Trust directly_reachable. (sjlj_emit_dispatch_table): Likewise. From-SVN: r47915
2001-12-11 18:58:23 -08:00
rc = RNL_NOT_CAUGHT;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (; region; region = region->outer)
except.c (sjlj_find_directly_reachable_regions): Don't consider RNL_BLOCKED a directly reachable region. * except.c (sjlj_find_directly_reachable_regions): Don't consider RNL_BLOCKED a directly reachable region. (sjlj_assign_call_site_values): Trust directly_reachable. (sjlj_emit_dispatch_table): Likewise. From-SVN: r47915
2001-12-11 18:58:23 -08:00
{
rc = reachable_next_level (region, type_thrown, 0);
if (rc != RNL_NOT_CAUGHT)
break;
}
if (rc == RNL_MAYBE_CAUGHT || rc == RNL_CAUGHT)
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
{
lp_info[region->region_number].directly_reachable = 1;
found_one = true;
}
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return found_one;
}
./: * libgcc2.c (__throw): Use __builtin_return_addr instead of __eh_pc. * except.c: Lose outer_context_label_stack. (expand_eh_region_end): Rethrow from outer_context here. (expand_fixup_region_end): Let expand_eh_region_end do the rethrow. (expand_internal_throw): Take no args. (expand_internal_throw_indirect): Lose. (expand_leftover_cleanups, expand_start_all_catch): Use expand_rethrow. (expand_start_all_catch): Start a rethrow region. (expand_end_all_catch): End it. (expand_rethrow): New fn. * except.h: Reflect above changes. cp/: * except.c (expand_end_catch_block): Lose rethrow region. (expand_start_catch_block): Likewise. (expand_end_catch_block): Don't expand_leftover_cleanups. From-SVN: r16937
1997-12-04 09:41:38 +00:00
static void
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
sjlj_assign_call_site_values (dispatch_label, lp_info)
rtx dispatch_label;
struct sjlj_lp_info *lp_info;
./: * libgcc2.c (__throw): Use __builtin_return_addr instead of __eh_pc. * except.c: Lose outer_context_label_stack. (expand_eh_region_end): Rethrow from outer_context here. (expand_fixup_region_end): Let expand_eh_region_end do the rethrow. (expand_internal_throw): Take no args. (expand_internal_throw_indirect): Lose. (expand_leftover_cleanups, expand_start_all_catch): Use expand_rethrow. (expand_start_all_catch): Start a rethrow region. (expand_end_all_catch): End it. (expand_rethrow): New fn. * except.h: Reflect above changes. cp/: * except.c (expand_end_catch_block): Lose rethrow region. (expand_start_catch_block): Likewise. (expand_end_catch_block): Don't expand_leftover_cleanups. From-SVN: r16937
1997-12-04 09:41:38 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
htab_t ar_hash;
int i, index;
/* First task: build the action table. */
VARRAY_UCHAR_INIT (cfun->eh->action_record_data, 64, "action_record_data");
ar_hash = htab_create (31, action_record_hash, action_record_eq, free);
for (i = cfun->eh->last_region_number; i > 0; --i)
if (lp_info[i].directly_reachable)
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *r = cfun->eh->region_array[i];
r->landing_pad = dispatch_label;
lp_info[i].action_index = collect_one_action_chain (ar_hash, r);
if (lp_info[i].action_index != -1)
cfun->uses_eh_lsda = 1;
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
}
./: * libgcc2.c (__throw): Use __builtin_return_addr instead of __eh_pc. * except.c: Lose outer_context_label_stack. (expand_eh_region_end): Rethrow from outer_context here. (expand_fixup_region_end): Let expand_eh_region_end do the rethrow. (expand_internal_throw): Take no args. (expand_internal_throw_indirect): Lose. (expand_leftover_cleanups, expand_start_all_catch): Use expand_rethrow. (expand_start_all_catch): Start a rethrow region. (expand_end_all_catch): End it. (expand_rethrow): New fn. * except.h: Reflect above changes. cp/: * except.c (expand_end_catch_block): Lose rethrow region. (expand_start_catch_block): Likewise. (expand_end_catch_block): Don't expand_leftover_cleanups. From-SVN: r16937
1997-12-04 09:41:38 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
htab_delete (ar_hash);
except.h (eh_status): Adjust documentation for x_protect_list. * except.h (eh_status): Adjust documentation for x_protect_list. (begin_protect_partials): New function. * except.c (enqueue_eh_entry): Fix formatting. (get_first_handler): Add consistency check. (add_partial_entry): Adjust usage of protect_list. (emit_cleanup_handler): Save and restore ehqueue. (expand_start_all_catch): Add comment. (begin_protect_partials): New function. (end_protect_partials): Adjust usage of protect_list. (init_eh_for_function): Use xcalloc. From-SVN: r30667
1999-11-25 19:21:27 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Next: assign dispatch values. In dwarf2 terms, this would be the
landing pad label for the region. For sjlj though, there is one
common landing pad from which we dispatch to the post-landing pads.
except.h (eh_status): Adjust documentation for x_protect_list. * except.h (eh_status): Adjust documentation for x_protect_list. (begin_protect_partials): New function. * except.c (enqueue_eh_entry): Fix formatting. (get_first_handler): Add consistency check. (add_partial_entry): Adjust usage of protect_list. (emit_cleanup_handler): Save and restore ehqueue. (expand_start_all_catch): Add comment. (begin_protect_partials): New function. (end_protect_partials): Adjust usage of protect_list. (init_eh_for_function): Use xcalloc. From-SVN: r30667
1999-11-25 19:21:27 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
A region receives a dispatch index if it is directly reachable
and requires in-function processing. Regions that share post-landing
ChangeLog.2, [...]: Fix spelling errors. * ChangeLog.2, ChangeLog.3, ChangeLog.4, ChangeLog.5, ChangeLog, cfg.c, cfganal.c, cfgcleanup.c, cfglayout.c, cfgloop.c, cfgrtl.c, collect2.c, combine.c, config.in, configure, configure.in, conflict.c, dwarf2out.c, dwarfout.c, except.c, final.c, flow.c, genattrtab.c, ggc-page.c, jump.c, lcm.c, predict.c, reg-stack.c, reload1.c, rtlanal.c, sched-rgn.c, toplev.c, unwind-dw2-fde.h: Fix spelling errors. From-SVN: r46928
2001-11-11 11:25:28 +00:00
pads may share dispatch indices. */
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* ??? Post-landing pad sharing doesn't actually happen at the moment
(see build_post_landing_pads) so we don't bother checking for it. */
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
index = 0;
for (i = cfun->eh->last_region_number; i > 0; --i)
except.c (sjlj_find_directly_reachable_regions): Don't consider RNL_BLOCKED a directly reachable region. * except.c (sjlj_find_directly_reachable_regions): Don't consider RNL_BLOCKED a directly reachable region. (sjlj_assign_call_site_values): Trust directly_reachable. (sjlj_emit_dispatch_table): Likewise. From-SVN: r47915
2001-12-11 18:58:23 -08:00
if (lp_info[i].directly_reachable)
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
lp_info[i].dispatch_index = index++;
except.h (eh_status): Adjust documentation for x_protect_list. * except.h (eh_status): Adjust documentation for x_protect_list. (begin_protect_partials): New function. * except.c (enqueue_eh_entry): Fix formatting. (get_first_handler): Add consistency check. (add_partial_entry): Adjust usage of protect_list. (emit_cleanup_handler): Save and restore ehqueue. (expand_start_all_catch): Add comment. (begin_protect_partials): New function. (end_protect_partials): Adjust usage of protect_list. (init_eh_for_function): Use xcalloc. From-SVN: r30667
1999-11-25 19:21:27 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Finally: assign call-site values. If dwarf2 terms, this would be
the region number assigned by convert_to_eh_region_ranges, but
handles no-action and must-not-throw differently. */
except.h (eh_status): Adjust documentation for x_protect_list. * except.h (eh_status): Adjust documentation for x_protect_list. (begin_protect_partials): New function. * except.c (enqueue_eh_entry): Fix formatting. (get_first_handler): Add consistency check. (add_partial_entry): Adjust usage of protect_list. (emit_cleanup_handler): Save and restore ehqueue. (expand_start_all_catch): Add comment. (begin_protect_partials): New function. (end_protect_partials): Adjust usage of protect_list. (init_eh_for_function): Use xcalloc. From-SVN: r30667
1999-11-25 19:21:27 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
call_site_base = 1;
for (i = cfun->eh->last_region_number; i > 0; --i)
if (lp_info[i].directly_reachable)
{
int action = lp_info[i].action_index;
/* Map must-not-throw to otherwise unused call-site index 0. */
if (action == -2)
index = 0;
/* Map no-action to otherwise unused call-site index -1. */
else if (action == -1)
index = -1;
/* Otherwise, look it up in the table. */
else
index = add_call_site (GEN_INT (lp_info[i].dispatch_index), action);
lp_info[i].call_site_index = index;
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static void
sjlj_mark_call_sites (lp_info)
struct sjlj_lp_info *lp_info;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int last_call_site = -2;
rtx insn, mem;
for (insn = get_insns (); insn ; insn = NEXT_INSN (insn))
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *region;
int this_call_site;
rtx note, before, p;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Reset value tracking at extended basic block boundaries. */
if (GET_CODE (insn) == CODE_LABEL)
last_call_site = -2;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! INSN_P (insn))
continue;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
note = find_reg_note (insn, REG_EH_REGION, NULL_RTX);
if (!note)
{
/* Calls (and trapping insns) without notes are outside any
exception handling region in this function. Mark them as
no action. */
if (GET_CODE (insn) == CALL_INSN
|| (flag_non_call_exceptions
&& may_trap_p (PATTERN (insn))))
this_call_site = -1;
else
continue;
}
else
{
/* Calls that are known to not throw need not be marked. */
if (INTVAL (XEXP (note, 0)) <= 0)
continue;
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
region = cfun->eh->region_array[INTVAL (XEXP (note, 0))];
this_call_site = lp_info[region->region_number].call_site_index;
}
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (this_call_site == last_call_site)
continue;
/* Don't separate a call from it's argument loads. */
before = insn;
if (GET_CODE (insn) == CALL_INSN)
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
before = find_first_parameter_load (insn, NULL_RTX);
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
start_sequence ();
except.c (sjlj_mark_call_sites): Change address inside sequence. 2001-09-25 Andrew Haley <aph@cambridge.redhat.com> * except.c (sjlj_mark_call_sites): Change address inside sequence. From-SVN: r45822
2001-09-26 10:38:18 +00:00
mem = adjust_address (cfun->eh->sjlj_fc, TYPE_MODE (integer_type_node),
sjlj_fc_call_site_ofs);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_move_insn (mem, GEN_INT (this_call_site));
p = get_insns ();
end_sequence ();
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
Delete SEQUENCE rtl usage outside of reorg and ssa passes. 2002-06-05 David S. Miller <davem@redhat.com> Delete SEQUENCE rtl usage outside of reorg and ssa passes. * rtl.h (gen_sequence, emit_insns, emit_insns_before, emit_insns_before_scope, emit_insns_after, emit_insns_after_scope): Delete declaration. * ada/misc.c (insert_code_for): Use emit_insn* instead of emit_insns_foo. * config/alpha/alpha.c (alpha_set_memflags_1): Abort on SEQUENCE. (alpha_set_memflags): Fix comment. (set_frame_related_p): Use get_insns instead of gen_sequence. * config/alpha/alpha.md (setjmp receiver splitter): Avoid emitting no insns. * config/arm/arm.c (arm_finalize_pic): Use get_insns instead of gen_sequence. (arm_gen_load_multiple, arm_gen_store_multiple): Likewise. * config/fr30/fr30.c (fr30_move_double): Likewise. * config/i386/i386.c (ix86_expand_int_movcc, ix86_expand_movstr): Likewise. * config/ia64/ia64.c (spill_restore_mem): Likewise. * config/ia64/ia64.md (conditional move spliiter): Avoid emitting no insns. * config/m32r/m32r.c (gen_split_move_double): Use get_insns instead of gen_sequence. * config/mips/mips.c (embedded_pic_fnaddr_reg): Likewise. (mips_expand_prologue, mips16_gp_pseudo_reg): Likewise. * config/sh/sh.c (sh_need_epilogue): Likewise. * config/sparc/sparc.md (current_function_calls_alloca, flat): New attributes. (setjmp pattern and split): Use them to avoid splitter which emits no RTL. * genattrtab.c (main): Emit include of function.h * config/stormy16/stormy16.c (xstormy16_split_cbranch): Use get_insns instead of gen_sequence. * config/cris/cris.c (cris_split_movdx): Likewise. * emit-rtl.c (emit_insns*): Kill. (try_split): Expect insn list instead of SEQUENCE. (make_jump_insn_raw, make_call_insn_raw): Fix comments. (emit_*insn*): Reimplement to work with INSN lists and PATTERNs. Make them abort if a SEQUENCE is given and RTL checking is enabled. (emit_*_scope): Don't forget to set scope on final insn. (gen_sequence): Move from here... * ssa.c (gen_sequence): To here as private function. * builtins.c (expand_builtin_apply_args): Use emit_insn_foo, fix comments. (expand_builtin_return, expand_builtin_mathfn): Likewise. (expand_builtin_strlen): Use get_insns instead of gen_sequence. (expand_builtin_saveregs): Use emit_insn_foo, fix comments. (expand_builtin_expect_jump): Use get_insns and fix comments. * calls.c (try_to_integrate): Use emit_insn_foo. (expand_call, emit_library_call_value_1): Likewise. * expr.c (emit_queue): Handle insn lists instead of SEQUENCE. (emit_move_insn_1): Use get_insns instead of gen_sequence. (expand_expr): Use emit_insn_foo. * cfgrtl.c (commit_one_edge_insertion): Use emit_insn_foo. * except.c (build_post_landing_pads): Likewise. * flow.c (attempt_auto_inc): Likewise. * stmt.c (expand_fixup, fixup_gotos, expand_nl_handler_label, expand_nl_goto_receivers, expand_decl_cleanup): Likewise. * function.c (fixup_var_refs_insn): Use get_insns instead of gen_sequence. (fixup_var_refs_1): Likewise and expect insn list from gen_foo. (fixup_memory_subreg): Use get_insns instead of gen_sequence. (fixup_stack_1, purge_addressof_1, expand_main_function, get_arg_pointer_save_area): Likewise. (optimize_bit_field, instantiate_virtual_regs_1, assign_parms, expand_function_end): Use emit_insn_foo. (record_insns, keep_stack_depressed): Work with insn list instead of SEQUENCE, fix comments. * ifcvt.c (noce_emit_store_flag, noce_try_store_flag, noce_try_store_flag_constants, noce_try_store_flag_inc, noce_try_store_flag_mask, noce_emit_cmove, noce_try_cmove_arith, noce_try_minmax, noce_try_abs): Use emit_insn_foo. (noce_process_if_block): Use get_insns instead of gen_sequence. * optabs.c (add_equal_note): Work with insn list, fix comments. (expand_binop): Expect insn list from GEN_FCN(), use emit_insn_foo. (expand_unop, expand_complex_abs, expand_unop_insn, expand_no_conflict_block): Likewise. (gen_move_insn): Use get_insns instead of gen_sequence. (gen_cond_trap): Likewise. * integrate.c (copy_rtx_and_substitute): Likewise. (emit_initial_value_sets): Use emit_insn_foo. * reload1.c (emit_output_reload_insns, emit_reload_insns): Likewise. (fixup_abnormal_edges): Avoid losing REG_NOTES more intelligently now that RTL generators give insn lists. * sibcall.c (replace_call_placeholder): Use emit_insn_foo. * doloop.c (doloop_modify, doloop_modify_runtime): Use get_insns instead of gen_sequence. (doloop_optimize): Work with insn lists instead of SEQUENCE rtl. * explow.c (emit_stack_save, emit_stack_restore): Use get_insns instead of gen_sequence. * loop.c (move_movables, emit_prefetch_instructions, gen_add_mult, check_dbra_loop, gen_load_of_final_value): Likewise. (loop_regs_update): Work with insn list instead of SEQUENCE rtl. (product_cheap_p): Likewise, and add commentary about RTL wastage here. * lcm.c (optimize_mode_switching): Use get_insns instead of gen_sequence. * profile.c (gen_edge_profiler): Likewise. * regmove.c (copy_src_to_dest): Likewise. * reg-stack.c (compensate_edge): Likewise and fix comment. * gcse.c (process_insert_insn): Likewise. (insert_insn_end_bb): Work with insn list instead of SEQUENCE rtl. * jump.c (delete_prior_computation): Update comment. * genemit.c (gen_expand, gen_split, main): Use get_insns instead of gen_sequence, update comments to match. * recog.c (peephole2_optimize): Work with insn lists instead of SEQUENCE rtl. * sched-vis.c (print_pattern): Abort on SEQUENCE. * unroll.c (unroll_loop, find_splittable_givs, final_giv_value): Use get_insns instead of gen_sequence. (copy_loop_body): Likewise and don't emit dummy NOTE. * genrecog.c: Don't mention SEQUENCE rtl in comments. * combine.c (try_combine): Expect insn lists from split generator. * reorg.c (relax_delay_slots): Emit SEQUENCE into insn list by hand. From-SVN: r54497
2002-06-11 05:22:48 -07:00
emit_insn_before (p, before);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
last_call_site = this_call_site;
}
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Construct the SjLj_Function_Context. */
static void
sjlj_emit_function_enter (dispatch_label)
rtx dispatch_label;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
rtx fn_begin, fc, mem, seq;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
fc = cfun->eh->sjlj_fc;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
start_sequence ();
except.c (add_eh_table_entry): Mark type_info's as referenced. gcc: * except.c (add_eh_table_entry): Mark type_info's as referenced. gcc/cp: * rtti.c (get_tinfo_decl): Mark used. (emit_tinfo_decl): Don't optimize polymorphic type_info. Only mark as dealt with, if we output it. From-SVN: r32799
2000-03-29 08:22:21 +00:00
except.c (sjlj_emit_function_enter): Call assemble_external_libcall for eh_personality_libfunc. * except.c (sjlj_emit_function_enter): Call assemble_external_libcall for eh_personality_libfunc. From-SVN: r42216
2001-05-17 17:53:52 +00:00
/* We're storing this libcall's address into memory instead of
calling it directly. Thus, we must call assemble_external_libcall
here, as we can not depend on emit_library_call to do it for us. */
assemble_external_libcall (eh_personality_libfunc);
emit-rtl.c (adjust_address): New function. * emit-rtl.c (adjust_address): New function. * expr.h (adjust_address): Add declaration. * builtins.c: Replace some calls to change_address with calls to it or to validize_mem. * caller-save.c, dwarf2out.c, except.c, expmed.c, expr.c: Likewise. * function.c, config/a29k/a29k.md, config/alpha/alpha.c: Likewise. * config/arm/arm.c, config/convex/convex.c: Likewise. * config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise. * config/i386/i386.c, config/i386/i386.md: Likewise. * config/ia64/ia64.c, config/ia64/ia64.md: Likewise. * config/m32r/m32r.c, config/m68k/m68k.md: Likewise. * config/m88k/m88k.c, config/mips/mips.md: Likewise. * config/ns32k/ns32k.c, config/rs6000/rs6000.c: Likewise. * config/sh/sh.c, config/sparc/sparc.md: Likewise. From-SVN: r43702
2001-07-02 19:47:44 +00:00
mem = adjust_address (fc, Pmode, sjlj_fc_personality_ofs);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_move_insn (mem, eh_personality_libfunc);
emit-rtl.c (adjust_address): New function. * emit-rtl.c (adjust_address): New function. * expr.h (adjust_address): Add declaration. * builtins.c: Replace some calls to change_address with calls to it or to validize_mem. * caller-save.c, dwarf2out.c, except.c, expmed.c, expr.c: Likewise. * function.c, config/a29k/a29k.md, config/alpha/alpha.c: Likewise. * config/arm/arm.c, config/convex/convex.c: Likewise. * config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise. * config/i386/i386.c, config/i386/i386.md: Likewise. * config/ia64/ia64.c, config/ia64/ia64.md: Likewise. * config/m32r/m32r.c, config/m68k/m68k.md: Likewise. * config/m88k/m88k.c, config/mips/mips.md: Likewise. * config/ns32k/ns32k.c, config/rs6000/rs6000.c: Likewise. * config/sh/sh.c, config/sparc/sparc.md: Likewise. From-SVN: r43702
2001-07-02 19:47:44 +00:00
mem = adjust_address (fc, Pmode, sjlj_fc_lsda_ofs);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (cfun->uses_eh_lsda)
{
char buf[20];
function.h (struct function): Rename profile_label_no. * function.h (struct function) [funcdef_no]: Rename profile_label_no. (current_function_funcdef_no): Similarly. * function.c (funcdef_no): Similarly. (prepare_function_start): Set current_function_funcdef_no. (expand_function_start): Don't set current_function_profile_label_no. * dwarf2out.h (current_funcdef_number): Remove. * dwarf2out.c (current_funcdef_number): Remove. Replace with current_function_funcdef_no throughout. * dwarfout.c, vmsdbgout.c: Similarly. * except.c (sjlj_funcdef_number): Remove. (sjlj_emit_function_enter): Use current_function_funcdef_no instead. (output_function_exception_table): Likewise. * final.c (profile_function): Use current_function_funcdef_no instead of current_function_profile_label_no. From-SVN: r54709
2002-06-17 10:47:22 -07:00
ASM_GENERATE_INTERNAL_LABEL (buf, "LLSDA", current_function_funcdef_no);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_move_insn (mem, gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf)));
except.c (add_eh_table_entry): Mark type_info's as referenced. gcc: * except.c (add_eh_table_entry): Mark type_info's as referenced. gcc/cp: * rtti.c (get_tinfo_decl): Mark used. (emit_tinfo_decl): Don't optimize polymorphic type_info. Only mark as dealt with, if we output it. From-SVN: r32799
2000-03-29 08:22:21 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
else
emit_move_insn (mem, const0_rtx);
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#ifdef DONT_USE_BUILTIN_SETJMP
{
rtx x, note;
rtl.h (LCT_RETURNS_TWICE): New. * rtl.h (LCT_RETURNS_TWICE): New. * calls.c (emit_call_1): Set current_function_calls_setjmp for ECF_RETURNS_TWICE. (emit_library_call_value_1): Map LCT_RETURNS_TWICE to ECF_RETURNS_TWICE. * except.c (sjlj_emit_function_enter): Use LCT_RETURNS_TWICE for call to setjmp. * unwind-sjlj.c: Invent the setjmp.h declarations if inhibit_libc. * config/stormy16/stormy16.h (DONT_USE_BUILTIN_SETJMP): New. (JMP_BUF_SIZE): New. From-SVN: r45736
2001-09-21 13:26:44 -07:00
x = emit_library_call_value (setjmp_libfunc, NULL_RTX, LCT_RETURNS_TWICE,
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
TYPE_MODE (integer_type_node), 1,
plus_constant (XEXP (fc, 0),
sjlj_fc_jbuf_ofs), Pmode);
note = emit_note (NULL, NOTE_INSN_EXPECTED_VALUE);
NOTE_EXPECTED_VALUE (note) = gen_rtx_EQ (VOIDmode, x, const0_rtx);
emit_cmp_and_jump_insns (x, const0_rtx, NE, 0,
alias.c (nonoverlapping_memrefs): Use REGNO_PTR_FRAME_P. * alias.c (nonoverlapping_memrefs): Use REGNO_PTR_FRAME_P. * emit-rtl.c (change_address): Fix typo in default alignment. (adjust_address_1): Use mode of NEW, not MODE, when setting size. * expr.c (highest_pow2_factor, case WITH_RECORD_EXPR): New case. * rtl.h (REGNO_PTR_FRAME_P): New macro. * expr.c (store_field): Pass tree instead of max size; callers changed. Change handling of alignment. Only copy to_rtx if is TARGET. (expand_expr_unaligned): Delete; callers now use expand_expr. (emit_cmp_insn): No longer take ALIGN parm; all callers changed. (expand_assignment): Change handling of alignment. Only copy to_rtx if was original. (get_inner_reference): No longer return alginment; callers changed. (expand_expr, case COMPONENT_REF): Change handling of alignment. (expand_expr, case ADDR_EXPR): Make copy if not sufficiently aligned. (compare_from_rtx): Delete ALIGN parm; all callers changed. (do_compare_rtx_and_jump): Likewise. * expr.h: Reflect above changes. * tree.h: Likewise. * dwarf2out.c (loc_descriptor_from_tree): Remove ALIGN parameter to get_inner_reference. * except.c: Remove ALIGN parameter in call to emit_cmp_and_jump_insns. * explow.c: Likewise. * loop.c: Likewise. * optabs.c: Likewise. (prepare_cmp_insn): Now static; remove ALIGN parm. Callers changed. (emit_cmp_and_jump_insns): Remove ALIGN parm; all callers changed. * fold-const.c: Remove PALIGN in calls to get_inner_reference. * function.c (assign_stack_temp_for_type): No longer static. * optabs.h (emit_cmp_insn): Remove ALIGN parm. (prepare_cmp_insn): Delete declaration. * rtl.h (assign_stack_temp_for_type): Add declaration. * config/d30v/d30v.c: Reflect above changes. * config/i860/i860.c, config/ia64/ia64.c: Likewise. * config/rs6000/rs6000.c, config/sh/sh.c: Likewise. * ada/trans.c, ada/utils2.c: Remove PALIGN parameter to get_inner_reference. From-SVN: r47075
2001-11-15 23:44:58 +00:00
TYPE_MODE (integer_type_node), 0, dispatch_label);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
}
#else
expand_builtin_setjmp_setup (plus_constant (XEXP (fc, 0), sjlj_fc_jbuf_ofs),
dispatch_label);
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
#endif
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_library_call (unwind_sjlj_register_libfunc, LCT_NORMAL, VOIDmode,
1, XEXP (fc, 0), Pmode);
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
seq = get_insns ();
end_sequence ();
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* ??? Instead of doing this at the beginning of the function,
do this in a block that is at loop level 0 and dominates all
can_throw_internal instructions. */
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (fn_begin = get_insns (); ; fn_begin = NEXT_INSN (fn_begin))
if (GET_CODE (fn_begin) == NOTE
&& NOTE_LINE_NUMBER (fn_begin) == NOTE_INSN_FUNCTION_BEG)
break;
Delete SEQUENCE rtl usage outside of reorg and ssa passes. 2002-06-05 David S. Miller <davem@redhat.com> Delete SEQUENCE rtl usage outside of reorg and ssa passes. * rtl.h (gen_sequence, emit_insns, emit_insns_before, emit_insns_before_scope, emit_insns_after, emit_insns_after_scope): Delete declaration. * ada/misc.c (insert_code_for): Use emit_insn* instead of emit_insns_foo. * config/alpha/alpha.c (alpha_set_memflags_1): Abort on SEQUENCE. (alpha_set_memflags): Fix comment. (set_frame_related_p): Use get_insns instead of gen_sequence. * config/alpha/alpha.md (setjmp receiver splitter): Avoid emitting no insns. * config/arm/arm.c (arm_finalize_pic): Use get_insns instead of gen_sequence. (arm_gen_load_multiple, arm_gen_store_multiple): Likewise. * config/fr30/fr30.c (fr30_move_double): Likewise. * config/i386/i386.c (ix86_expand_int_movcc, ix86_expand_movstr): Likewise. * config/ia64/ia64.c (spill_restore_mem): Likewise. * config/ia64/ia64.md (conditional move spliiter): Avoid emitting no insns. * config/m32r/m32r.c (gen_split_move_double): Use get_insns instead of gen_sequence. * config/mips/mips.c (embedded_pic_fnaddr_reg): Likewise. (mips_expand_prologue, mips16_gp_pseudo_reg): Likewise. * config/sh/sh.c (sh_need_epilogue): Likewise. * config/sparc/sparc.md (current_function_calls_alloca, flat): New attributes. (setjmp pattern and split): Use them to avoid splitter which emits no RTL. * genattrtab.c (main): Emit include of function.h * config/stormy16/stormy16.c (xstormy16_split_cbranch): Use get_insns instead of gen_sequence. * config/cris/cris.c (cris_split_movdx): Likewise. * emit-rtl.c (emit_insns*): Kill. (try_split): Expect insn list instead of SEQUENCE. (make_jump_insn_raw, make_call_insn_raw): Fix comments. (emit_*insn*): Reimplement to work with INSN lists and PATTERNs. Make them abort if a SEQUENCE is given and RTL checking is enabled. (emit_*_scope): Don't forget to set scope on final insn. (gen_sequence): Move from here... * ssa.c (gen_sequence): To here as private function. * builtins.c (expand_builtin_apply_args): Use emit_insn_foo, fix comments. (expand_builtin_return, expand_builtin_mathfn): Likewise. (expand_builtin_strlen): Use get_insns instead of gen_sequence. (expand_builtin_saveregs): Use emit_insn_foo, fix comments. (expand_builtin_expect_jump): Use get_insns and fix comments. * calls.c (try_to_integrate): Use emit_insn_foo. (expand_call, emit_library_call_value_1): Likewise. * expr.c (emit_queue): Handle insn lists instead of SEQUENCE. (emit_move_insn_1): Use get_insns instead of gen_sequence. (expand_expr): Use emit_insn_foo. * cfgrtl.c (commit_one_edge_insertion): Use emit_insn_foo. * except.c (build_post_landing_pads): Likewise. * flow.c (attempt_auto_inc): Likewise. * stmt.c (expand_fixup, fixup_gotos, expand_nl_handler_label, expand_nl_goto_receivers, expand_decl_cleanup): Likewise. * function.c (fixup_var_refs_insn): Use get_insns instead of gen_sequence. (fixup_var_refs_1): Likewise and expect insn list from gen_foo. (fixup_memory_subreg): Use get_insns instead of gen_sequence. (fixup_stack_1, purge_addressof_1, expand_main_function, get_arg_pointer_save_area): Likewise. (optimize_bit_field, instantiate_virtual_regs_1, assign_parms, expand_function_end): Use emit_insn_foo. (record_insns, keep_stack_depressed): Work with insn list instead of SEQUENCE, fix comments. * ifcvt.c (noce_emit_store_flag, noce_try_store_flag, noce_try_store_flag_constants, noce_try_store_flag_inc, noce_try_store_flag_mask, noce_emit_cmove, noce_try_cmove_arith, noce_try_minmax, noce_try_abs): Use emit_insn_foo. (noce_process_if_block): Use get_insns instead of gen_sequence. * optabs.c (add_equal_note): Work with insn list, fix comments. (expand_binop): Expect insn list from GEN_FCN(), use emit_insn_foo. (expand_unop, expand_complex_abs, expand_unop_insn, expand_no_conflict_block): Likewise. (gen_move_insn): Use get_insns instead of gen_sequence. (gen_cond_trap): Likewise. * integrate.c (copy_rtx_and_substitute): Likewise. (emit_initial_value_sets): Use emit_insn_foo. * reload1.c (emit_output_reload_insns, emit_reload_insns): Likewise. (fixup_abnormal_edges): Avoid losing REG_NOTES more intelligently now that RTL generators give insn lists. * sibcall.c (replace_call_placeholder): Use emit_insn_foo. * doloop.c (doloop_modify, doloop_modify_runtime): Use get_insns instead of gen_sequence. (doloop_optimize): Work with insn lists instead of SEQUENCE rtl. * explow.c (emit_stack_save, emit_stack_restore): Use get_insns instead of gen_sequence. * loop.c (move_movables, emit_prefetch_instructions, gen_add_mult, check_dbra_loop, gen_load_of_final_value): Likewise. (loop_regs_update): Work with insn list instead of SEQUENCE rtl. (product_cheap_p): Likewise, and add commentary about RTL wastage here. * lcm.c (optimize_mode_switching): Use get_insns instead of gen_sequence. * profile.c (gen_edge_profiler): Likewise. * regmove.c (copy_src_to_dest): Likewise. * reg-stack.c (compensate_edge): Likewise and fix comment. * gcse.c (process_insert_insn): Likewise. (insert_insn_end_bb): Work with insn list instead of SEQUENCE rtl. * jump.c (delete_prior_computation): Update comment. * genemit.c (gen_expand, gen_split, main): Use get_insns instead of gen_sequence, update comments to match. * recog.c (peephole2_optimize): Work with insn lists instead of SEQUENCE rtl. * sched-vis.c (print_pattern): Abort on SEQUENCE. * unroll.c (unroll_loop, find_splittable_givs, final_giv_value): Use get_insns instead of gen_sequence. (copy_loop_body): Likewise and don't emit dummy NOTE. * genrecog.c: Don't mention SEQUENCE rtl in comments. * combine.c (try_combine): Expect insn lists from split generator. * reorg.c (relax_delay_slots): Emit SEQUENCE into insn list by hand. From-SVN: r54497
2002-06-11 05:22:48 -07:00
emit_insn_after (seq, fn_begin);
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Call back from expand_function_end to know where we should put
the call to unwind_sjlj_unregister_libfunc if needed. */
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
sjlj_emit_function_exit_after (after)
rtx after;
{
cfun->eh->sjlj_exit_after = after;
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
static void
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
sjlj_emit_function_exit ()
{
rtx seq;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
start_sequence ();
except.c (func_eh_entry): Add emitted field. 2000-05-25 Andrew MacLeod <amacleod@cygnus.com> Andrew Haley <aph@cygnus.com> * except.c (func_eh_entry): Add emitted field. (new_eh_region_entry): Set emitted field to 0; (output_exception_table_entry): Only emit previously un-emitted data, and send it to the eh_data section. (output_exception_table): Break out common parts. Output exception table for entire compilation unit to eh_data section. (output_exception_table_data): Common parts of output_exception_table. Send output to eh_data section. (output_function_exception_table): Output exception table data for a single function to eh_data section. (free_exception_table): New external to free the table. * except.h (free_exception_table): Add prototype. (output_function_exception_table): Add prototype. * final.c (final_end_function): Output function exception table for IA64_UNWIND_INFO. (final_scan_insn): Emit any unwind directives for an insn. * frame-dwarf2.c: New file containing all DWARF 2 specific code from frame.c. * frame.c: Remove all DWARF 2 specific code. * config/ia64/frame-ia64.c: New file. (gthread_stuff): Make all gthread available with IA64_UNWIND_INFO. (dwarf_fde): Define an IA64 struct for dwarf_fde. (__register_frame_info, __register_frame): Move to common area of file. (__register_frame_info_table, __register_frame_table): Move to common i area. (__deregister_frame_info, __deregister_frame): Move to common area. (__frame_init, find_fde): New versions for IA64_UNWIND_INFO. (read_uleb128): New version for ia64. (get_unwind_record): Read the next IA-64 unwind record. (read_R_record): Read a region header record. (process_a_b_reg_code): X record helper. (read_X_record): Read an X format record. (read_B_record): Read a B format record. (P3_record_types): List of record types matching the P3 format. (P7_record_types): List of record types matching the P7 format. (P8_record_types): List of record types matching the P8 format. (read_P_record): Read a P format record. (init_ia64_reg_loc): Set default fields for a register. (init_ia64_unwind_frame): Set defaults for all register records. (execute_one_ia64_descriptor): Execute one descriptor record. (rse_address_add): Calculate the position of a local reg in memory. (normalize_reg_loc): Turn a location descriptor into a memory address. (maybe_normalize_reg_loc): Only normalize a descriptor if it falls within a specified PC offset range. (get_real_reg_value): Given a register location, retrieve its value. (set_real_reg_value): Change the value of a register location. (copy_reg_value): Copy reg values, if needed. (copy_saved_reg_state): Copy all registers that need to be copied. (process_state_between): Normalize all frame register records that fall within the specified PC range. (frame_translate): Take a processed frame description, and turn everything into addresses. (build_ia64_frame_state ): Find and create frame state record for a PC. (get_personality): Get the personality routine for a given frame. (get_except_table): Get the exception table for a given frame. (record_name): Unwind record names for debugging. (print_record): Print and unwind record. (print_all_records): Print an entire unwind image. (__ia64_backtrace): Print a backtrace. (ia64_backtrace_helper): New function. (__register_frame_info_aux): New function. * config/ia64/crtend.asm (__do_frame_setup_aux): New function. * frame.h (enum unw_record_type): New unwind record types. (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records. (struct unw_r_record, unwind_record): New unwind record structs. (struct unwind_info_ptr): Unwind information layout. (IA64_UNW_LOC_TYPE_*): Macros for different types for location descriptors. (struct ia64_reg_loc): Register location description. (struct ia64_frame_state): Location of all registers in a frame. (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO. * libgcc2.c (__ia64_personality_v1): Personality routine. (__calc_caller_bsp): Calculate the bsp register for the caller's frame. (ia64_throw_helper): Figure out who to return to and set up the registers. (__throw): Throw routine. * output.h (assemble_eh_align, assemble_eh_label): New functions to generate EH info where we want it. (assemble_eh_integer): New function. * toplev.c (compile_file): Output module level exception table for non-ia64 targets. (main): Set exceptions_via_longjump and flag_new_exceptions based on IA64_UNWIND_INFO too. * varasm.c (assemble_eh_label): Generate a label via ASM_OUTPUT_EH_LABEL if it has been specified. (assemble_eh_align): Generate an alignment directive via ASM_OUTPUT_EH_ALIGN if it has been specified. (assemble_eh_label): Generate an integer value via ASM_OUTPUT_EH_type if they have been specified. * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs. (ia64_init_builtins): Add __builtin_ia64_bsp and __builtin_ia64_flushrs. (ia64_expand_builtin): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.md (flushrs): New insn to flush the register stack. Add to unspec list. * config/ia64/crtbegin.asm (frame_object): Change size. (__do_frame_setup_aux): New function. * config/ia64/crtend.asm: call __do_frame_setup_aux. * config/ia64/t-ia64 (LIB2ADDEH): Add. * Makefile.in (LIB2ADDEH): Add. (LIB2ADD): Use LIB2ADDEH. Co-Authored-By: Andrew Haley <aph@cygnus.com> From-SVN: r34169
2000-05-25 15:21:51 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_library_call (unwind_sjlj_unregister_libfunc, LCT_NORMAL, VOIDmode,
1, XEXP (cfun->eh->sjlj_fc, 0), Pmode);
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
seq = get_insns ();
end_sequence ();
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* ??? Really this can be done in any block at loop level 0 that
post-dominates all can_throw_internal instructions. This is
the last possible moment. */
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
Delete SEQUENCE rtl usage outside of reorg and ssa passes. 2002-06-05 David S. Miller <davem@redhat.com> Delete SEQUENCE rtl usage outside of reorg and ssa passes. * rtl.h (gen_sequence, emit_insns, emit_insns_before, emit_insns_before_scope, emit_insns_after, emit_insns_after_scope): Delete declaration. * ada/misc.c (insert_code_for): Use emit_insn* instead of emit_insns_foo. * config/alpha/alpha.c (alpha_set_memflags_1): Abort on SEQUENCE. (alpha_set_memflags): Fix comment. (set_frame_related_p): Use get_insns instead of gen_sequence. * config/alpha/alpha.md (setjmp receiver splitter): Avoid emitting no insns. * config/arm/arm.c (arm_finalize_pic): Use get_insns instead of gen_sequence. (arm_gen_load_multiple, arm_gen_store_multiple): Likewise. * config/fr30/fr30.c (fr30_move_double): Likewise. * config/i386/i386.c (ix86_expand_int_movcc, ix86_expand_movstr): Likewise. * config/ia64/ia64.c (spill_restore_mem): Likewise. * config/ia64/ia64.md (conditional move spliiter): Avoid emitting no insns. * config/m32r/m32r.c (gen_split_move_double): Use get_insns instead of gen_sequence. * config/mips/mips.c (embedded_pic_fnaddr_reg): Likewise. (mips_expand_prologue, mips16_gp_pseudo_reg): Likewise. * config/sh/sh.c (sh_need_epilogue): Likewise. * config/sparc/sparc.md (current_function_calls_alloca, flat): New attributes. (setjmp pattern and split): Use them to avoid splitter which emits no RTL. * genattrtab.c (main): Emit include of function.h * config/stormy16/stormy16.c (xstormy16_split_cbranch): Use get_insns instead of gen_sequence. * config/cris/cris.c (cris_split_movdx): Likewise. * emit-rtl.c (emit_insns*): Kill. (try_split): Expect insn list instead of SEQUENCE. (make_jump_insn_raw, make_call_insn_raw): Fix comments. (emit_*insn*): Reimplement to work with INSN lists and PATTERNs. Make them abort if a SEQUENCE is given and RTL checking is enabled. (emit_*_scope): Don't forget to set scope on final insn. (gen_sequence): Move from here... * ssa.c (gen_sequence): To here as private function. * builtins.c (expand_builtin_apply_args): Use emit_insn_foo, fix comments. (expand_builtin_return, expand_builtin_mathfn): Likewise. (expand_builtin_strlen): Use get_insns instead of gen_sequence. (expand_builtin_saveregs): Use emit_insn_foo, fix comments. (expand_builtin_expect_jump): Use get_insns and fix comments. * calls.c (try_to_integrate): Use emit_insn_foo. (expand_call, emit_library_call_value_1): Likewise. * expr.c (emit_queue): Handle insn lists instead of SEQUENCE. (emit_move_insn_1): Use get_insns instead of gen_sequence. (expand_expr): Use emit_insn_foo. * cfgrtl.c (commit_one_edge_insertion): Use emit_insn_foo. * except.c (build_post_landing_pads): Likewise. * flow.c (attempt_auto_inc): Likewise. * stmt.c (expand_fixup, fixup_gotos, expand_nl_handler_label, expand_nl_goto_receivers, expand_decl_cleanup): Likewise. * function.c (fixup_var_refs_insn): Use get_insns instead of gen_sequence. (fixup_var_refs_1): Likewise and expect insn list from gen_foo. (fixup_memory_subreg): Use get_insns instead of gen_sequence. (fixup_stack_1, purge_addressof_1, expand_main_function, get_arg_pointer_save_area): Likewise. (optimize_bit_field, instantiate_virtual_regs_1, assign_parms, expand_function_end): Use emit_insn_foo. (record_insns, keep_stack_depressed): Work with insn list instead of SEQUENCE, fix comments. * ifcvt.c (noce_emit_store_flag, noce_try_store_flag, noce_try_store_flag_constants, noce_try_store_flag_inc, noce_try_store_flag_mask, noce_emit_cmove, noce_try_cmove_arith, noce_try_minmax, noce_try_abs): Use emit_insn_foo. (noce_process_if_block): Use get_insns instead of gen_sequence. * optabs.c (add_equal_note): Work with insn list, fix comments. (expand_binop): Expect insn list from GEN_FCN(), use emit_insn_foo. (expand_unop, expand_complex_abs, expand_unop_insn, expand_no_conflict_block): Likewise. (gen_move_insn): Use get_insns instead of gen_sequence. (gen_cond_trap): Likewise. * integrate.c (copy_rtx_and_substitute): Likewise. (emit_initial_value_sets): Use emit_insn_foo. * reload1.c (emit_output_reload_insns, emit_reload_insns): Likewise. (fixup_abnormal_edges): Avoid losing REG_NOTES more intelligently now that RTL generators give insn lists. * sibcall.c (replace_call_placeholder): Use emit_insn_foo. * doloop.c (doloop_modify, doloop_modify_runtime): Use get_insns instead of gen_sequence. (doloop_optimize): Work with insn lists instead of SEQUENCE rtl. * explow.c (emit_stack_save, emit_stack_restore): Use get_insns instead of gen_sequence. * loop.c (move_movables, emit_prefetch_instructions, gen_add_mult, check_dbra_loop, gen_load_of_final_value): Likewise. (loop_regs_update): Work with insn list instead of SEQUENCE rtl. (product_cheap_p): Likewise, and add commentary about RTL wastage here. * lcm.c (optimize_mode_switching): Use get_insns instead of gen_sequence. * profile.c (gen_edge_profiler): Likewise. * regmove.c (copy_src_to_dest): Likewise. * reg-stack.c (compensate_edge): Likewise and fix comment. * gcse.c (process_insert_insn): Likewise. (insert_insn_end_bb): Work with insn list instead of SEQUENCE rtl. * jump.c (delete_prior_computation): Update comment. * genemit.c (gen_expand, gen_split, main): Use get_insns instead of gen_sequence, update comments to match. * recog.c (peephole2_optimize): Work with insn lists instead of SEQUENCE rtl. * sched-vis.c (print_pattern): Abort on SEQUENCE. * unroll.c (unroll_loop, find_splittable_givs, final_giv_value): Use get_insns instead of gen_sequence. (copy_loop_body): Likewise and don't emit dummy NOTE. * genrecog.c: Don't mention SEQUENCE rtl in comments. * combine.c (try_combine): Expect insn lists from split generator. * reorg.c (relax_delay_slots): Emit SEQUENCE into insn list by hand. From-SVN: r54497
2002-06-11 05:22:48 -07:00
emit_insn_after (seq, cfun->eh->sjlj_exit_after);
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static void
sjlj_emit_dispatch_table (dispatch_label, lp_info)
rtx dispatch_label;
struct sjlj_lp_info *lp_info;
except.c (func_eh_entry): Add emitted field. 2000-05-25 Andrew MacLeod <amacleod@cygnus.com> Andrew Haley <aph@cygnus.com> * except.c (func_eh_entry): Add emitted field. (new_eh_region_entry): Set emitted field to 0; (output_exception_table_entry): Only emit previously un-emitted data, and send it to the eh_data section. (output_exception_table): Break out common parts. Output exception table for entire compilation unit to eh_data section. (output_exception_table_data): Common parts of output_exception_table. Send output to eh_data section. (output_function_exception_table): Output exception table data for a single function to eh_data section. (free_exception_table): New external to free the table. * except.h (free_exception_table): Add prototype. (output_function_exception_table): Add prototype. * final.c (final_end_function): Output function exception table for IA64_UNWIND_INFO. (final_scan_insn): Emit any unwind directives for an insn. * frame-dwarf2.c: New file containing all DWARF 2 specific code from frame.c. * frame.c: Remove all DWARF 2 specific code. * config/ia64/frame-ia64.c: New file. (gthread_stuff): Make all gthread available with IA64_UNWIND_INFO. (dwarf_fde): Define an IA64 struct for dwarf_fde. (__register_frame_info, __register_frame): Move to common area of file. (__register_frame_info_table, __register_frame_table): Move to common i area. (__deregister_frame_info, __deregister_frame): Move to common area. (__frame_init, find_fde): New versions for IA64_UNWIND_INFO. (read_uleb128): New version for ia64. (get_unwind_record): Read the next IA-64 unwind record. (read_R_record): Read a region header record. (process_a_b_reg_code): X record helper. (read_X_record): Read an X format record. (read_B_record): Read a B format record. (P3_record_types): List of record types matching the P3 format. (P7_record_types): List of record types matching the P7 format. (P8_record_types): List of record types matching the P8 format. (read_P_record): Read a P format record. (init_ia64_reg_loc): Set default fields for a register. (init_ia64_unwind_frame): Set defaults for all register records. (execute_one_ia64_descriptor): Execute one descriptor record. (rse_address_add): Calculate the position of a local reg in memory. (normalize_reg_loc): Turn a location descriptor into a memory address. (maybe_normalize_reg_loc): Only normalize a descriptor if it falls within a specified PC offset range. (get_real_reg_value): Given a register location, retrieve its value. (set_real_reg_value): Change the value of a register location. (copy_reg_value): Copy reg values, if needed. (copy_saved_reg_state): Copy all registers that need to be copied. (process_state_between): Normalize all frame register records that fall within the specified PC range. (frame_translate): Take a processed frame description, and turn everything into addresses. (build_ia64_frame_state ): Find and create frame state record for a PC. (get_personality): Get the personality routine for a given frame. (get_except_table): Get the exception table for a given frame. (record_name): Unwind record names for debugging. (print_record): Print and unwind record. (print_all_records): Print an entire unwind image. (__ia64_backtrace): Print a backtrace. (ia64_backtrace_helper): New function. (__register_frame_info_aux): New function. * config/ia64/crtend.asm (__do_frame_setup_aux): New function. * frame.h (enum unw_record_type): New unwind record types. (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records. (struct unw_r_record, unwind_record): New unwind record structs. (struct unwind_info_ptr): Unwind information layout. (IA64_UNW_LOC_TYPE_*): Macros for different types for location descriptors. (struct ia64_reg_loc): Register location description. (struct ia64_frame_state): Location of all registers in a frame. (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO. * libgcc2.c (__ia64_personality_v1): Personality routine. (__calc_caller_bsp): Calculate the bsp register for the caller's frame. (ia64_throw_helper): Figure out who to return to and set up the registers. (__throw): Throw routine. * output.h (assemble_eh_align, assemble_eh_label): New functions to generate EH info where we want it. (assemble_eh_integer): New function. * toplev.c (compile_file): Output module level exception table for non-ia64 targets. (main): Set exceptions_via_longjump and flag_new_exceptions based on IA64_UNWIND_INFO too. * varasm.c (assemble_eh_label): Generate a label via ASM_OUTPUT_EH_LABEL if it has been specified. (assemble_eh_align): Generate an alignment directive via ASM_OUTPUT_EH_ALIGN if it has been specified. (assemble_eh_label): Generate an integer value via ASM_OUTPUT_EH_type if they have been specified. * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs. (ia64_init_builtins): Add __builtin_ia64_bsp and __builtin_ia64_flushrs. (ia64_expand_builtin): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.md (flushrs): New insn to flush the register stack. Add to unspec list. * config/ia64/crtbegin.asm (frame_object): Change size. (__do_frame_setup_aux): New function. * config/ia64/crtend.asm: call __do_frame_setup_aux. * config/ia64/t-ia64 (LIB2ADDEH): Add. * Makefile.in (LIB2ADDEH): Add. (LIB2ADD): Use LIB2ADDEH. Co-Authored-By: Andrew Haley <aph@cygnus.com> From-SVN: r34169
2000-05-25 15:21:51 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int i, first_reachable;
rtx mem, dispatch, seq, fc;
fc = cfun->eh->sjlj_fc;
start_sequence ();
emit_label (dispatch_label);
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#ifndef DONT_USE_BUILTIN_SETJMP
expand_builtin_setjmp_receiver (dispatch_label);
#endif
/* Load up dispatch index, exc_ptr and filter values from the
function context. */
emit-rtl.c (adjust_address): New function. * emit-rtl.c (adjust_address): New function. * expr.h (adjust_address): Add declaration. * builtins.c: Replace some calls to change_address with calls to it or to validize_mem. * caller-save.c, dwarf2out.c, except.c, expmed.c, expr.c: Likewise. * function.c, config/a29k/a29k.md, config/alpha/alpha.c: Likewise. * config/arm/arm.c, config/convex/convex.c: Likewise. * config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise. * config/i386/i386.c, config/i386/i386.md: Likewise. * config/ia64/ia64.c, config/ia64/ia64.md: Likewise. * config/m32r/m32r.c, config/m68k/m68k.md: Likewise. * config/m88k/m88k.c, config/mips/mips.md: Likewise. * config/ns32k/ns32k.c, config/rs6000/rs6000.c: Likewise. * config/sh/sh.c, config/sparc/sparc.md: Likewise. From-SVN: r43702
2001-07-02 19:47:44 +00:00
mem = adjust_address (fc, TYPE_MODE (integer_type_node),
sjlj_fc_call_site_ofs);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
dispatch = copy_to_reg (mem);
emit-rtl.c (adjust_address): New function. * emit-rtl.c (adjust_address): New function. * expr.h (adjust_address): Add declaration. * builtins.c: Replace some calls to change_address with calls to it or to validize_mem. * caller-save.c, dwarf2out.c, except.c, expmed.c, expr.c: Likewise. * function.c, config/a29k/a29k.md, config/alpha/alpha.c: Likewise. * config/arm/arm.c, config/convex/convex.c: Likewise. * config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise. * config/i386/i386.c, config/i386/i386.md: Likewise. * config/ia64/ia64.c, config/ia64/ia64.md: Likewise. * config/m32r/m32r.c, config/m68k/m68k.md: Likewise. * config/m88k/m88k.c, config/mips/mips.md: Likewise. * config/ns32k/ns32k.c, config/rs6000/rs6000.c: Likewise. * config/sh/sh.c, config/sparc/sparc.md: Likewise. From-SVN: r43702
2001-07-02 19:47:44 +00:00
mem = adjust_address (fc, word_mode, sjlj_fc_data_ofs);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (word_mode != Pmode)
{
#ifdef POINTERS_EXTEND_UNSIGNED
mem = convert_memory_address (Pmode, mem);
#else
mem = convert_to_mode (Pmode, mem, 0);
#endif
}
emit_move_insn (cfun->eh->exc_ptr, mem);
emit-rtl.c (adjust_address): New function. * emit-rtl.c (adjust_address): New function. * expr.h (adjust_address): Add declaration. * builtins.c: Replace some calls to change_address with calls to it or to validize_mem. * caller-save.c, dwarf2out.c, except.c, expmed.c, expr.c: Likewise. * function.c, config/a29k/a29k.md, config/alpha/alpha.c: Likewise. * config/arm/arm.c, config/convex/convex.c: Likewise. * config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise. * config/i386/i386.c, config/i386/i386.md: Likewise. * config/ia64/ia64.c, config/ia64/ia64.md: Likewise. * config/m32r/m32r.c, config/m68k/m68k.md: Likewise. * config/m88k/m88k.c, config/mips/mips.md: Likewise. * config/ns32k/ns32k.c, config/rs6000/rs6000.c: Likewise. * config/sh/sh.c, config/sparc/sparc.md: Likewise. From-SVN: r43702
2001-07-02 19:47:44 +00:00
mem = adjust_address (fc, word_mode, sjlj_fc_data_ofs + UNITS_PER_WORD);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_move_insn (cfun->eh->filter, mem);
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Jump to one of the directly reachable regions. */
/* ??? This really ought to be using a switch statement. */
first_reachable = 0;
for (i = cfun->eh->last_region_number; i > 0; --i)
[multiple changes] Thu Jun 8 14:16:15 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * eh-common.h: Remove NEW_EH_MODEL compile time flag, and replace with flag_new_exceptions runtime flag. (struct old_exception_table): New struct which represents what the exception table looks like without the new model. (NEW_EH_RUNTIME): New value used as a tag in the exception table to flag that this is a new style table. * except.h: Remove compile time flag NEW_EH_MODEL. (expand_builtin_eh_stub_old): New prototype. * tree.h (enum built_in_function): Add BUILT_IN_EH_STUB_OLD. * expr.c (expand_builtin): New builtin func BUILT_IN_EH_STUB_OLD. * c-decl.c (init_decl_processing): Add new builtin function __builtin_eh_stub_old. * final.c (final_scan_insn): Replace compile time flag NEW_EH_MODEL. * flags.h (flag_new_exceptions): New runtime flag. * toplev.c (flag_new_exceptions): Initialize default to 0, -fnew-exceptions sets to 1. * except.c (output_exception_table_entry): Output New style exception identifier into table, and replace compile time flag NEW_EH_MODEL with runtime flag flag_new_exceptions. (output_exception_table): Replace compile time flag NEW_EH_MODEL. (expand_builtin_eh_stub_old): Duplicates original functionality of expand_builtin_eh_stub. (expand_builtin_eh_stub): Replace compile time flag NEW_EH_MODEL. * libgcc2.c (find_exception_handler): Remove NEW_EH_MODEL #ifdefs. (old_find_exception_handler): New func, same as find_exception_handler except it works on the old style exception table. (__throw): Replace NEW_EH_MODEL. Detect new model based on presence of identifier in the exception table, and call appropriate routines. 1998-06-08 Andrew MacLeod <amacleod@cygnus.com> * except.c (init_exception_processing): Remove NEW_EH_MODEL compile time flag. Call __cp_eh_info instead of __cp_exception_info. * exception.cc (struct cp_eh_info): Remove NEW_EH_MODEL flag. (__cp_exception_info): Return offset into cp_eh_info structure to match what use to be the start of this structure. (__cp_eh_info): New function to return a pointer to cp_eh_info struct. (__cplus_type_matcher, __cp_push_exception): Remove NEW_EH_MODEL compile time flag. (__uncatch_exception, __check_eh_spec, std::uncaught_exception): Call __cp_eh_info instead of __cp_exception_info. From-SVN: r20336
1998-06-08 12:43:28 +00:00
{
except.c (sjlj_find_directly_reachable_regions): Don't consider RNL_BLOCKED a directly reachable region. * except.c (sjlj_find_directly_reachable_regions): Don't consider RNL_BLOCKED a directly reachable region. (sjlj_assign_call_site_values): Trust directly_reachable. (sjlj_emit_dispatch_table): Likewise. From-SVN: r47915
2001-12-11 18:58:23 -08:00
if (! lp_info[i].directly_reachable)
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
continue;
[multiple changes] Thu Jun 8 14:16:15 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * eh-common.h: Remove NEW_EH_MODEL compile time flag, and replace with flag_new_exceptions runtime flag. (struct old_exception_table): New struct which represents what the exception table looks like without the new model. (NEW_EH_RUNTIME): New value used as a tag in the exception table to flag that this is a new style table. * except.h: Remove compile time flag NEW_EH_MODEL. (expand_builtin_eh_stub_old): New prototype. * tree.h (enum built_in_function): Add BUILT_IN_EH_STUB_OLD. * expr.c (expand_builtin): New builtin func BUILT_IN_EH_STUB_OLD. * c-decl.c (init_decl_processing): Add new builtin function __builtin_eh_stub_old. * final.c (final_scan_insn): Replace compile time flag NEW_EH_MODEL. * flags.h (flag_new_exceptions): New runtime flag. * toplev.c (flag_new_exceptions): Initialize default to 0, -fnew-exceptions sets to 1. * except.c (output_exception_table_entry): Output New style exception identifier into table, and replace compile time flag NEW_EH_MODEL with runtime flag flag_new_exceptions. (output_exception_table): Replace compile time flag NEW_EH_MODEL. (expand_builtin_eh_stub_old): Duplicates original functionality of expand_builtin_eh_stub. (expand_builtin_eh_stub): Replace compile time flag NEW_EH_MODEL. * libgcc2.c (find_exception_handler): Remove NEW_EH_MODEL #ifdefs. (old_find_exception_handler): New func, same as find_exception_handler except it works on the old style exception table. (__throw): Replace NEW_EH_MODEL. Detect new model based on presence of identifier in the exception table, and call appropriate routines. 1998-06-08 Andrew MacLeod <amacleod@cygnus.com> * except.c (init_exception_processing): Remove NEW_EH_MODEL compile time flag. Call __cp_eh_info instead of __cp_exception_info. * exception.cc (struct cp_eh_info): Remove NEW_EH_MODEL flag. (__cp_exception_info): Return offset into cp_eh_info structure to match what use to be the start of this structure. (__cp_eh_info): New function to return a pointer to cp_eh_info struct. (__cplus_type_matcher, __cp_push_exception): Remove NEW_EH_MODEL compile time flag. (__uncatch_exception, __check_eh_spec, std::uncaught_exception): Call __cp_eh_info instead of __cp_exception_info. From-SVN: r20336
1998-06-08 12:43:28 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! first_reachable)
{
first_reachable = i;
continue;
}
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
alias.c (nonoverlapping_memrefs): Use REGNO_PTR_FRAME_P. * alias.c (nonoverlapping_memrefs): Use REGNO_PTR_FRAME_P. * emit-rtl.c (change_address): Fix typo in default alignment. (adjust_address_1): Use mode of NEW, not MODE, when setting size. * expr.c (highest_pow2_factor, case WITH_RECORD_EXPR): New case. * rtl.h (REGNO_PTR_FRAME_P): New macro. * expr.c (store_field): Pass tree instead of max size; callers changed. Change handling of alignment. Only copy to_rtx if is TARGET. (expand_expr_unaligned): Delete; callers now use expand_expr. (emit_cmp_insn): No longer take ALIGN parm; all callers changed. (expand_assignment): Change handling of alignment. Only copy to_rtx if was original. (get_inner_reference): No longer return alginment; callers changed. (expand_expr, case COMPONENT_REF): Change handling of alignment. (expand_expr, case ADDR_EXPR): Make copy if not sufficiently aligned. (compare_from_rtx): Delete ALIGN parm; all callers changed. (do_compare_rtx_and_jump): Likewise. * expr.h: Reflect above changes. * tree.h: Likewise. * dwarf2out.c (loc_descriptor_from_tree): Remove ALIGN parameter to get_inner_reference. * except.c: Remove ALIGN parameter in call to emit_cmp_and_jump_insns. * explow.c: Likewise. * loop.c: Likewise. * optabs.c: Likewise. (prepare_cmp_insn): Now static; remove ALIGN parm. Callers changed. (emit_cmp_and_jump_insns): Remove ALIGN parm; all callers changed. * fold-const.c: Remove PALIGN in calls to get_inner_reference. * function.c (assign_stack_temp_for_type): No longer static. * optabs.h (emit_cmp_insn): Remove ALIGN parm. (prepare_cmp_insn): Delete declaration. * rtl.h (assign_stack_temp_for_type): Add declaration. * config/d30v/d30v.c: Reflect above changes. * config/i860/i860.c, config/ia64/ia64.c: Likewise. * config/rs6000/rs6000.c, config/sh/sh.c: Likewise. * ada/trans.c, ada/utils2.c: Remove PALIGN parameter to get_inner_reference. From-SVN: r47075
2001-11-15 23:44:58 +00:00
emit_cmp_and_jump_insns (dispatch, GEN_INT (lp_info[i].dispatch_index),
EQ, NULL_RTX, TYPE_MODE (integer_type_node), 0,
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
cfun->eh->region_array[i]->post_landing_pad);
[multiple changes] Thu Jun 8 14:16:15 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * eh-common.h: Remove NEW_EH_MODEL compile time flag, and replace with flag_new_exceptions runtime flag. (struct old_exception_table): New struct which represents what the exception table looks like without the new model. (NEW_EH_RUNTIME): New value used as a tag in the exception table to flag that this is a new style table. * except.h: Remove compile time flag NEW_EH_MODEL. (expand_builtin_eh_stub_old): New prototype. * tree.h (enum built_in_function): Add BUILT_IN_EH_STUB_OLD. * expr.c (expand_builtin): New builtin func BUILT_IN_EH_STUB_OLD. * c-decl.c (init_decl_processing): Add new builtin function __builtin_eh_stub_old. * final.c (final_scan_insn): Replace compile time flag NEW_EH_MODEL. * flags.h (flag_new_exceptions): New runtime flag. * toplev.c (flag_new_exceptions): Initialize default to 0, -fnew-exceptions sets to 1. * except.c (output_exception_table_entry): Output New style exception identifier into table, and replace compile time flag NEW_EH_MODEL with runtime flag flag_new_exceptions. (output_exception_table): Replace compile time flag NEW_EH_MODEL. (expand_builtin_eh_stub_old): Duplicates original functionality of expand_builtin_eh_stub. (expand_builtin_eh_stub): Replace compile time flag NEW_EH_MODEL. * libgcc2.c (find_exception_handler): Remove NEW_EH_MODEL #ifdefs. (old_find_exception_handler): New func, same as find_exception_handler except it works on the old style exception table. (__throw): Replace NEW_EH_MODEL. Detect new model based on presence of identifier in the exception table, and call appropriate routines. 1998-06-08 Andrew MacLeod <amacleod@cygnus.com> * except.c (init_exception_processing): Remove NEW_EH_MODEL compile time flag. Call __cp_eh_info instead of __cp_exception_info. * exception.cc (struct cp_eh_info): Remove NEW_EH_MODEL flag. (__cp_exception_info): Return offset into cp_eh_info structure to match what use to be the start of this structure. (__cp_eh_info): New function to return a pointer to cp_eh_info struct. (__cplus_type_matcher, __cp_push_exception): Remove NEW_EH_MODEL compile time flag. (__uncatch_exception, __check_eh_spec, std::uncaught_exception): Call __cp_eh_info instead of __cp_exception_info. From-SVN: r20336
1998-06-08 12:43:28 +00:00
}
First cut of changes to utilize the new exception handling model From-SVN: r19746
1998-05-14 13:39:15 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
seq = get_insns ();
end_sequence ();
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
Delete SEQUENCE rtl usage outside of reorg and ssa passes. 2002-06-05 David S. Miller <davem@redhat.com> Delete SEQUENCE rtl usage outside of reorg and ssa passes. * rtl.h (gen_sequence, emit_insns, emit_insns_before, emit_insns_before_scope, emit_insns_after, emit_insns_after_scope): Delete declaration. * ada/misc.c (insert_code_for): Use emit_insn* instead of emit_insns_foo. * config/alpha/alpha.c (alpha_set_memflags_1): Abort on SEQUENCE. (alpha_set_memflags): Fix comment. (set_frame_related_p): Use get_insns instead of gen_sequence. * config/alpha/alpha.md (setjmp receiver splitter): Avoid emitting no insns. * config/arm/arm.c (arm_finalize_pic): Use get_insns instead of gen_sequence. (arm_gen_load_multiple, arm_gen_store_multiple): Likewise. * config/fr30/fr30.c (fr30_move_double): Likewise. * config/i386/i386.c (ix86_expand_int_movcc, ix86_expand_movstr): Likewise. * config/ia64/ia64.c (spill_restore_mem): Likewise. * config/ia64/ia64.md (conditional move spliiter): Avoid emitting no insns. * config/m32r/m32r.c (gen_split_move_double): Use get_insns instead of gen_sequence. * config/mips/mips.c (embedded_pic_fnaddr_reg): Likewise. (mips_expand_prologue, mips16_gp_pseudo_reg): Likewise. * config/sh/sh.c (sh_need_epilogue): Likewise. * config/sparc/sparc.md (current_function_calls_alloca, flat): New attributes. (setjmp pattern and split): Use them to avoid splitter which emits no RTL. * genattrtab.c (main): Emit include of function.h * config/stormy16/stormy16.c (xstormy16_split_cbranch): Use get_insns instead of gen_sequence. * config/cris/cris.c (cris_split_movdx): Likewise. * emit-rtl.c (emit_insns*): Kill. (try_split): Expect insn list instead of SEQUENCE. (make_jump_insn_raw, make_call_insn_raw): Fix comments. (emit_*insn*): Reimplement to work with INSN lists and PATTERNs. Make them abort if a SEQUENCE is given and RTL checking is enabled. (emit_*_scope): Don't forget to set scope on final insn. (gen_sequence): Move from here... * ssa.c (gen_sequence): To here as private function. * builtins.c (expand_builtin_apply_args): Use emit_insn_foo, fix comments. (expand_builtin_return, expand_builtin_mathfn): Likewise. (expand_builtin_strlen): Use get_insns instead of gen_sequence. (expand_builtin_saveregs): Use emit_insn_foo, fix comments. (expand_builtin_expect_jump): Use get_insns and fix comments. * calls.c (try_to_integrate): Use emit_insn_foo. (expand_call, emit_library_call_value_1): Likewise. * expr.c (emit_queue): Handle insn lists instead of SEQUENCE. (emit_move_insn_1): Use get_insns instead of gen_sequence. (expand_expr): Use emit_insn_foo. * cfgrtl.c (commit_one_edge_insertion): Use emit_insn_foo. * except.c (build_post_landing_pads): Likewise. * flow.c (attempt_auto_inc): Likewise. * stmt.c (expand_fixup, fixup_gotos, expand_nl_handler_label, expand_nl_goto_receivers, expand_decl_cleanup): Likewise. * function.c (fixup_var_refs_insn): Use get_insns instead of gen_sequence. (fixup_var_refs_1): Likewise and expect insn list from gen_foo. (fixup_memory_subreg): Use get_insns instead of gen_sequence. (fixup_stack_1, purge_addressof_1, expand_main_function, get_arg_pointer_save_area): Likewise. (optimize_bit_field, instantiate_virtual_regs_1, assign_parms, expand_function_end): Use emit_insn_foo. (record_insns, keep_stack_depressed): Work with insn list instead of SEQUENCE, fix comments. * ifcvt.c (noce_emit_store_flag, noce_try_store_flag, noce_try_store_flag_constants, noce_try_store_flag_inc, noce_try_store_flag_mask, noce_emit_cmove, noce_try_cmove_arith, noce_try_minmax, noce_try_abs): Use emit_insn_foo. (noce_process_if_block): Use get_insns instead of gen_sequence. * optabs.c (add_equal_note): Work with insn list, fix comments. (expand_binop): Expect insn list from GEN_FCN(), use emit_insn_foo. (expand_unop, expand_complex_abs, expand_unop_insn, expand_no_conflict_block): Likewise. (gen_move_insn): Use get_insns instead of gen_sequence. (gen_cond_trap): Likewise. * integrate.c (copy_rtx_and_substitute): Likewise. (emit_initial_value_sets): Use emit_insn_foo. * reload1.c (emit_output_reload_insns, emit_reload_insns): Likewise. (fixup_abnormal_edges): Avoid losing REG_NOTES more intelligently now that RTL generators give insn lists. * sibcall.c (replace_call_placeholder): Use emit_insn_foo. * doloop.c (doloop_modify, doloop_modify_runtime): Use get_insns instead of gen_sequence. (doloop_optimize): Work with insn lists instead of SEQUENCE rtl. * explow.c (emit_stack_save, emit_stack_restore): Use get_insns instead of gen_sequence. * loop.c (move_movables, emit_prefetch_instructions, gen_add_mult, check_dbra_loop, gen_load_of_final_value): Likewise. (loop_regs_update): Work with insn list instead of SEQUENCE rtl. (product_cheap_p): Likewise, and add commentary about RTL wastage here. * lcm.c (optimize_mode_switching): Use get_insns instead of gen_sequence. * profile.c (gen_edge_profiler): Likewise. * regmove.c (copy_src_to_dest): Likewise. * reg-stack.c (compensate_edge): Likewise and fix comment. * gcse.c (process_insert_insn): Likewise. (insert_insn_end_bb): Work with insn list instead of SEQUENCE rtl. * jump.c (delete_prior_computation): Update comment. * genemit.c (gen_expand, gen_split, main): Use get_insns instead of gen_sequence, update comments to match. * recog.c (peephole2_optimize): Work with insn lists instead of SEQUENCE rtl. * sched-vis.c (print_pattern): Abort on SEQUENCE. * unroll.c (unroll_loop, find_splittable_givs, final_giv_value): Use get_insns instead of gen_sequence. (copy_loop_body): Likewise and don't emit dummy NOTE. * genrecog.c: Don't mention SEQUENCE rtl in comments. * combine.c (try_combine): Expect insn lists from split generator. * reorg.c (relax_delay_slots): Emit SEQUENCE into insn list by hand. From-SVN: r54497
2002-06-11 05:22:48 -07:00
emit_insn_before (seq, (cfun->eh->region_array[first_reachable]
->post_landing_pad));
except.c (func_eh_entry): Add emitted field. 2000-05-25 Andrew MacLeod <amacleod@cygnus.com> Andrew Haley <aph@cygnus.com> * except.c (func_eh_entry): Add emitted field. (new_eh_region_entry): Set emitted field to 0; (output_exception_table_entry): Only emit previously un-emitted data, and send it to the eh_data section. (output_exception_table): Break out common parts. Output exception table for entire compilation unit to eh_data section. (output_exception_table_data): Common parts of output_exception_table. Send output to eh_data section. (output_function_exception_table): Output exception table data for a single function to eh_data section. (free_exception_table): New external to free the table. * except.h (free_exception_table): Add prototype. (output_function_exception_table): Add prototype. * final.c (final_end_function): Output function exception table for IA64_UNWIND_INFO. (final_scan_insn): Emit any unwind directives for an insn. * frame-dwarf2.c: New file containing all DWARF 2 specific code from frame.c. * frame.c: Remove all DWARF 2 specific code. * config/ia64/frame-ia64.c: New file. (gthread_stuff): Make all gthread available with IA64_UNWIND_INFO. (dwarf_fde): Define an IA64 struct for dwarf_fde. (__register_frame_info, __register_frame): Move to common area of file. (__register_frame_info_table, __register_frame_table): Move to common i area. (__deregister_frame_info, __deregister_frame): Move to common area. (__frame_init, find_fde): New versions for IA64_UNWIND_INFO. (read_uleb128): New version for ia64. (get_unwind_record): Read the next IA-64 unwind record. (read_R_record): Read a region header record. (process_a_b_reg_code): X record helper. (read_X_record): Read an X format record. (read_B_record): Read a B format record. (P3_record_types): List of record types matching the P3 format. (P7_record_types): List of record types matching the P7 format. (P8_record_types): List of record types matching the P8 format. (read_P_record): Read a P format record. (init_ia64_reg_loc): Set default fields for a register. (init_ia64_unwind_frame): Set defaults for all register records. (execute_one_ia64_descriptor): Execute one descriptor record. (rse_address_add): Calculate the position of a local reg in memory. (normalize_reg_loc): Turn a location descriptor into a memory address. (maybe_normalize_reg_loc): Only normalize a descriptor if it falls within a specified PC offset range. (get_real_reg_value): Given a register location, retrieve its value. (set_real_reg_value): Change the value of a register location. (copy_reg_value): Copy reg values, if needed. (copy_saved_reg_state): Copy all registers that need to be copied. (process_state_between): Normalize all frame register records that fall within the specified PC range. (frame_translate): Take a processed frame description, and turn everything into addresses. (build_ia64_frame_state ): Find and create frame state record for a PC. (get_personality): Get the personality routine for a given frame. (get_except_table): Get the exception table for a given frame. (record_name): Unwind record names for debugging. (print_record): Print and unwind record. (print_all_records): Print an entire unwind image. (__ia64_backtrace): Print a backtrace. (ia64_backtrace_helper): New function. (__register_frame_info_aux): New function. * config/ia64/crtend.asm (__do_frame_setup_aux): New function. * frame.h (enum unw_record_type): New unwind record types. (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records. (struct unw_r_record, unwind_record): New unwind record structs. (struct unwind_info_ptr): Unwind information layout. (IA64_UNW_LOC_TYPE_*): Macros for different types for location descriptors. (struct ia64_reg_loc): Register location description. (struct ia64_frame_state): Location of all registers in a frame. (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO. * libgcc2.c (__ia64_personality_v1): Personality routine. (__calc_caller_bsp): Calculate the bsp register for the caller's frame. (ia64_throw_helper): Figure out who to return to and set up the registers. (__throw): Throw routine. * output.h (assemble_eh_align, assemble_eh_label): New functions to generate EH info where we want it. (assemble_eh_integer): New function. * toplev.c (compile_file): Output module level exception table for non-ia64 targets. (main): Set exceptions_via_longjump and flag_new_exceptions based on IA64_UNWIND_INFO too. * varasm.c (assemble_eh_label): Generate a label via ASM_OUTPUT_EH_LABEL if it has been specified. (assemble_eh_align): Generate an alignment directive via ASM_OUTPUT_EH_ALIGN if it has been specified. (assemble_eh_label): Generate an integer value via ASM_OUTPUT_EH_type if they have been specified. * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs. (ia64_init_builtins): Add __builtin_ia64_bsp and __builtin_ia64_flushrs. (ia64_expand_builtin): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.md (flushrs): New insn to flush the register stack. Add to unspec list. * config/ia64/crtbegin.asm (frame_object): Change size. (__do_frame_setup_aux): New function. * config/ia64/crtend.asm: call __do_frame_setup_aux. * config/ia64/t-ia64 (LIB2ADDEH): Add. * Makefile.in (LIB2ADDEH): Add. (LIB2ADD): Use LIB2ADDEH. Co-Authored-By: Andrew Haley <aph@cygnus.com> From-SVN: r34169
2000-05-25 15:21:51 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static void
sjlj_build_landing_pads ()
except.c (func_eh_entry): Add emitted field. 2000-05-25 Andrew MacLeod <amacleod@cygnus.com> Andrew Haley <aph@cygnus.com> * except.c (func_eh_entry): Add emitted field. (new_eh_region_entry): Set emitted field to 0; (output_exception_table_entry): Only emit previously un-emitted data, and send it to the eh_data section. (output_exception_table): Break out common parts. Output exception table for entire compilation unit to eh_data section. (output_exception_table_data): Common parts of output_exception_table. Send output to eh_data section. (output_function_exception_table): Output exception table data for a single function to eh_data section. (free_exception_table): New external to free the table. * except.h (free_exception_table): Add prototype. (output_function_exception_table): Add prototype. * final.c (final_end_function): Output function exception table for IA64_UNWIND_INFO. (final_scan_insn): Emit any unwind directives for an insn. * frame-dwarf2.c: New file containing all DWARF 2 specific code from frame.c. * frame.c: Remove all DWARF 2 specific code. * config/ia64/frame-ia64.c: New file. (gthread_stuff): Make all gthread available with IA64_UNWIND_INFO. (dwarf_fde): Define an IA64 struct for dwarf_fde. (__register_frame_info, __register_frame): Move to common area of file. (__register_frame_info_table, __register_frame_table): Move to common i area. (__deregister_frame_info, __deregister_frame): Move to common area. (__frame_init, find_fde): New versions for IA64_UNWIND_INFO. (read_uleb128): New version for ia64. (get_unwind_record): Read the next IA-64 unwind record. (read_R_record): Read a region header record. (process_a_b_reg_code): X record helper. (read_X_record): Read an X format record. (read_B_record): Read a B format record. (P3_record_types): List of record types matching the P3 format. (P7_record_types): List of record types matching the P7 format. (P8_record_types): List of record types matching the P8 format. (read_P_record): Read a P format record. (init_ia64_reg_loc): Set default fields for a register. (init_ia64_unwind_frame): Set defaults for all register records. (execute_one_ia64_descriptor): Execute one descriptor record. (rse_address_add): Calculate the position of a local reg in memory. (normalize_reg_loc): Turn a location descriptor into a memory address. (maybe_normalize_reg_loc): Only normalize a descriptor if it falls within a specified PC offset range. (get_real_reg_value): Given a register location, retrieve its value. (set_real_reg_value): Change the value of a register location. (copy_reg_value): Copy reg values, if needed. (copy_saved_reg_state): Copy all registers that need to be copied. (process_state_between): Normalize all frame register records that fall within the specified PC range. (frame_translate): Take a processed frame description, and turn everything into addresses. (build_ia64_frame_state ): Find and create frame state record for a PC. (get_personality): Get the personality routine for a given frame. (get_except_table): Get the exception table for a given frame. (record_name): Unwind record names for debugging. (print_record): Print and unwind record. (print_all_records): Print an entire unwind image. (__ia64_backtrace): Print a backtrace. (ia64_backtrace_helper): New function. (__register_frame_info_aux): New function. * config/ia64/crtend.asm (__do_frame_setup_aux): New function. * frame.h (enum unw_record_type): New unwind record types. (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records. (struct unw_r_record, unwind_record): New unwind record structs. (struct unwind_info_ptr): Unwind information layout. (IA64_UNW_LOC_TYPE_*): Macros for different types for location descriptors. (struct ia64_reg_loc): Register location description. (struct ia64_frame_state): Location of all registers in a frame. (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO. * libgcc2.c (__ia64_personality_v1): Personality routine. (__calc_caller_bsp): Calculate the bsp register for the caller's frame. (ia64_throw_helper): Figure out who to return to and set up the registers. (__throw): Throw routine. * output.h (assemble_eh_align, assemble_eh_label): New functions to generate EH info where we want it. (assemble_eh_integer): New function. * toplev.c (compile_file): Output module level exception table for non-ia64 targets. (main): Set exceptions_via_longjump and flag_new_exceptions based on IA64_UNWIND_INFO too. * varasm.c (assemble_eh_label): Generate a label via ASM_OUTPUT_EH_LABEL if it has been specified. (assemble_eh_align): Generate an alignment directive via ASM_OUTPUT_EH_ALIGN if it has been specified. (assemble_eh_label): Generate an integer value via ASM_OUTPUT_EH_type if they have been specified. * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs. (ia64_init_builtins): Add __builtin_ia64_bsp and __builtin_ia64_flushrs. (ia64_expand_builtin): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.md (flushrs): New insn to flush the register stack. Add to unspec list. * config/ia64/crtbegin.asm (frame_object): Change size. (__do_frame_setup_aux): New function. * config/ia64/crtend.asm: call __do_frame_setup_aux. * config/ia64/t-ia64 (LIB2ADDEH): Add. * Makefile.in (LIB2ADDEH): Add. (LIB2ADD): Use LIB2ADDEH. Co-Authored-By: Andrew Haley <aph@cygnus.com> From-SVN: r34169
2000-05-25 15:21:51 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct sjlj_lp_info *lp_info;
except.c (func_eh_entry): Add emitted field. 2000-05-25 Andrew MacLeod <amacleod@cygnus.com> Andrew Haley <aph@cygnus.com> * except.c (func_eh_entry): Add emitted field. (new_eh_region_entry): Set emitted field to 0; (output_exception_table_entry): Only emit previously un-emitted data, and send it to the eh_data section. (output_exception_table): Break out common parts. Output exception table for entire compilation unit to eh_data section. (output_exception_table_data): Common parts of output_exception_table. Send output to eh_data section. (output_function_exception_table): Output exception table data for a single function to eh_data section. (free_exception_table): New external to free the table. * except.h (free_exception_table): Add prototype. (output_function_exception_table): Add prototype. * final.c (final_end_function): Output function exception table for IA64_UNWIND_INFO. (final_scan_insn): Emit any unwind directives for an insn. * frame-dwarf2.c: New file containing all DWARF 2 specific code from frame.c. * frame.c: Remove all DWARF 2 specific code. * config/ia64/frame-ia64.c: New file. (gthread_stuff): Make all gthread available with IA64_UNWIND_INFO. (dwarf_fde): Define an IA64 struct for dwarf_fde. (__register_frame_info, __register_frame): Move to common area of file. (__register_frame_info_table, __register_frame_table): Move to common i area. (__deregister_frame_info, __deregister_frame): Move to common area. (__frame_init, find_fde): New versions for IA64_UNWIND_INFO. (read_uleb128): New version for ia64. (get_unwind_record): Read the next IA-64 unwind record. (read_R_record): Read a region header record. (process_a_b_reg_code): X record helper. (read_X_record): Read an X format record. (read_B_record): Read a B format record. (P3_record_types): List of record types matching the P3 format. (P7_record_types): List of record types matching the P7 format. (P8_record_types): List of record types matching the P8 format. (read_P_record): Read a P format record. (init_ia64_reg_loc): Set default fields for a register. (init_ia64_unwind_frame): Set defaults for all register records. (execute_one_ia64_descriptor): Execute one descriptor record. (rse_address_add): Calculate the position of a local reg in memory. (normalize_reg_loc): Turn a location descriptor into a memory address. (maybe_normalize_reg_loc): Only normalize a descriptor if it falls within a specified PC offset range. (get_real_reg_value): Given a register location, retrieve its value. (set_real_reg_value): Change the value of a register location. (copy_reg_value): Copy reg values, if needed. (copy_saved_reg_state): Copy all registers that need to be copied. (process_state_between): Normalize all frame register records that fall within the specified PC range. (frame_translate): Take a processed frame description, and turn everything into addresses. (build_ia64_frame_state ): Find and create frame state record for a PC. (get_personality): Get the personality routine for a given frame. (get_except_table): Get the exception table for a given frame. (record_name): Unwind record names for debugging. (print_record): Print and unwind record. (print_all_records): Print an entire unwind image. (__ia64_backtrace): Print a backtrace. (ia64_backtrace_helper): New function. (__register_frame_info_aux): New function. * config/ia64/crtend.asm (__do_frame_setup_aux): New function. * frame.h (enum unw_record_type): New unwind record types. (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records. (struct unw_r_record, unwind_record): New unwind record structs. (struct unwind_info_ptr): Unwind information layout. (IA64_UNW_LOC_TYPE_*): Macros for different types for location descriptors. (struct ia64_reg_loc): Register location description. (struct ia64_frame_state): Location of all registers in a frame. (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO. * libgcc2.c (__ia64_personality_v1): Personality routine. (__calc_caller_bsp): Calculate the bsp register for the caller's frame. (ia64_throw_helper): Figure out who to return to and set up the registers. (__throw): Throw routine. * output.h (assemble_eh_align, assemble_eh_label): New functions to generate EH info where we want it. (assemble_eh_integer): New function. * toplev.c (compile_file): Output module level exception table for non-ia64 targets. (main): Set exceptions_via_longjump and flag_new_exceptions based on IA64_UNWIND_INFO too. * varasm.c (assemble_eh_label): Generate a label via ASM_OUTPUT_EH_LABEL if it has been specified. (assemble_eh_align): Generate an alignment directive via ASM_OUTPUT_EH_ALIGN if it has been specified. (assemble_eh_label): Generate an integer value via ASM_OUTPUT_EH_type if they have been specified. * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs. (ia64_init_builtins): Add __builtin_ia64_bsp and __builtin_ia64_flushrs. (ia64_expand_builtin): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.md (flushrs): New insn to flush the register stack. Add to unspec list. * config/ia64/crtbegin.asm (frame_object): Change size. (__do_frame_setup_aux): New function. * config/ia64/crtend.asm: call __do_frame_setup_aux. * config/ia64/t-ia64 (LIB2ADDEH): Add. * Makefile.in (LIB2ADDEH): Add. (LIB2ADD): Use LIB2ADDEH. Co-Authored-By: Andrew Haley <aph@cygnus.com> From-SVN: r34169
2000-05-25 15:21:51 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
lp_info = (struct sjlj_lp_info *) xcalloc (cfun->eh->last_region_number + 1,
sizeof (struct sjlj_lp_info));
except.c (func_eh_entry): Add emitted field. 2000-05-25 Andrew MacLeod <amacleod@cygnus.com> Andrew Haley <aph@cygnus.com> * except.c (func_eh_entry): Add emitted field. (new_eh_region_entry): Set emitted field to 0; (output_exception_table_entry): Only emit previously un-emitted data, and send it to the eh_data section. (output_exception_table): Break out common parts. Output exception table for entire compilation unit to eh_data section. (output_exception_table_data): Common parts of output_exception_table. Send output to eh_data section. (output_function_exception_table): Output exception table data for a single function to eh_data section. (free_exception_table): New external to free the table. * except.h (free_exception_table): Add prototype. (output_function_exception_table): Add prototype. * final.c (final_end_function): Output function exception table for IA64_UNWIND_INFO. (final_scan_insn): Emit any unwind directives for an insn. * frame-dwarf2.c: New file containing all DWARF 2 specific code from frame.c. * frame.c: Remove all DWARF 2 specific code. * config/ia64/frame-ia64.c: New file. (gthread_stuff): Make all gthread available with IA64_UNWIND_INFO. (dwarf_fde): Define an IA64 struct for dwarf_fde. (__register_frame_info, __register_frame): Move to common area of file. (__register_frame_info_table, __register_frame_table): Move to common i area. (__deregister_frame_info, __deregister_frame): Move to common area. (__frame_init, find_fde): New versions for IA64_UNWIND_INFO. (read_uleb128): New version for ia64. (get_unwind_record): Read the next IA-64 unwind record. (read_R_record): Read a region header record. (process_a_b_reg_code): X record helper. (read_X_record): Read an X format record. (read_B_record): Read a B format record. (P3_record_types): List of record types matching the P3 format. (P7_record_types): List of record types matching the P7 format. (P8_record_types): List of record types matching the P8 format. (read_P_record): Read a P format record. (init_ia64_reg_loc): Set default fields for a register. (init_ia64_unwind_frame): Set defaults for all register records. (execute_one_ia64_descriptor): Execute one descriptor record. (rse_address_add): Calculate the position of a local reg in memory. (normalize_reg_loc): Turn a location descriptor into a memory address. (maybe_normalize_reg_loc): Only normalize a descriptor if it falls within a specified PC offset range. (get_real_reg_value): Given a register location, retrieve its value. (set_real_reg_value): Change the value of a register location. (copy_reg_value): Copy reg values, if needed. (copy_saved_reg_state): Copy all registers that need to be copied. (process_state_between): Normalize all frame register records that fall within the specified PC range. (frame_translate): Take a processed frame description, and turn everything into addresses. (build_ia64_frame_state ): Find and create frame state record for a PC. (get_personality): Get the personality routine for a given frame. (get_except_table): Get the exception table for a given frame. (record_name): Unwind record names for debugging. (print_record): Print and unwind record. (print_all_records): Print an entire unwind image. (__ia64_backtrace): Print a backtrace. (ia64_backtrace_helper): New function. (__register_frame_info_aux): New function. * config/ia64/crtend.asm (__do_frame_setup_aux): New function. * frame.h (enum unw_record_type): New unwind record types. (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records. (struct unw_r_record, unwind_record): New unwind record structs. (struct unwind_info_ptr): Unwind information layout. (IA64_UNW_LOC_TYPE_*): Macros for different types for location descriptors. (struct ia64_reg_loc): Register location description. (struct ia64_frame_state): Location of all registers in a frame. (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO. * libgcc2.c (__ia64_personality_v1): Personality routine. (__calc_caller_bsp): Calculate the bsp register for the caller's frame. (ia64_throw_helper): Figure out who to return to and set up the registers. (__throw): Throw routine. * output.h (assemble_eh_align, assemble_eh_label): New functions to generate EH info where we want it. (assemble_eh_integer): New function. * toplev.c (compile_file): Output module level exception table for non-ia64 targets. (main): Set exceptions_via_longjump and flag_new_exceptions based on IA64_UNWIND_INFO too. * varasm.c (assemble_eh_label): Generate a label via ASM_OUTPUT_EH_LABEL if it has been specified. (assemble_eh_align): Generate an alignment directive via ASM_OUTPUT_EH_ALIGN if it has been specified. (assemble_eh_label): Generate an integer value via ASM_OUTPUT_EH_type if they have been specified. * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs. (ia64_init_builtins): Add __builtin_ia64_bsp and __builtin_ia64_flushrs. (ia64_expand_builtin): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.md (flushrs): New insn to flush the register stack. Add to unspec list. * config/ia64/crtbegin.asm (frame_object): Change size. (__do_frame_setup_aux): New function. * config/ia64/crtend.asm: call __do_frame_setup_aux. * config/ia64/t-ia64 (LIB2ADDEH): Add. * Makefile.in (LIB2ADDEH): Add. (LIB2ADD): Use LIB2ADDEH. Co-Authored-By: Andrew Haley <aph@cygnus.com> From-SVN: r34169
2000-05-25 15:21:51 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (sjlj_find_directly_reachable_regions (lp_info))
{
rtx dispatch_label = gen_label_rtx ();
except.c (func_eh_entry): Add emitted field. 2000-05-25 Andrew MacLeod <amacleod@cygnus.com> Andrew Haley <aph@cygnus.com> * except.c (func_eh_entry): Add emitted field. (new_eh_region_entry): Set emitted field to 0; (output_exception_table_entry): Only emit previously un-emitted data, and send it to the eh_data section. (output_exception_table): Break out common parts. Output exception table for entire compilation unit to eh_data section. (output_exception_table_data): Common parts of output_exception_table. Send output to eh_data section. (output_function_exception_table): Output exception table data for a single function to eh_data section. (free_exception_table): New external to free the table. * except.h (free_exception_table): Add prototype. (output_function_exception_table): Add prototype. * final.c (final_end_function): Output function exception table for IA64_UNWIND_INFO. (final_scan_insn): Emit any unwind directives for an insn. * frame-dwarf2.c: New file containing all DWARF 2 specific code from frame.c. * frame.c: Remove all DWARF 2 specific code. * config/ia64/frame-ia64.c: New file. (gthread_stuff): Make all gthread available with IA64_UNWIND_INFO. (dwarf_fde): Define an IA64 struct for dwarf_fde. (__register_frame_info, __register_frame): Move to common area of file. (__register_frame_info_table, __register_frame_table): Move to common i area. (__deregister_frame_info, __deregister_frame): Move to common area. (__frame_init, find_fde): New versions for IA64_UNWIND_INFO. (read_uleb128): New version for ia64. (get_unwind_record): Read the next IA-64 unwind record. (read_R_record): Read a region header record. (process_a_b_reg_code): X record helper. (read_X_record): Read an X format record. (read_B_record): Read a B format record. (P3_record_types): List of record types matching the P3 format. (P7_record_types): List of record types matching the P7 format. (P8_record_types): List of record types matching the P8 format. (read_P_record): Read a P format record. (init_ia64_reg_loc): Set default fields for a register. (init_ia64_unwind_frame): Set defaults for all register records. (execute_one_ia64_descriptor): Execute one descriptor record. (rse_address_add): Calculate the position of a local reg in memory. (normalize_reg_loc): Turn a location descriptor into a memory address. (maybe_normalize_reg_loc): Only normalize a descriptor if it falls within a specified PC offset range. (get_real_reg_value): Given a register location, retrieve its value. (set_real_reg_value): Change the value of a register location. (copy_reg_value): Copy reg values, if needed. (copy_saved_reg_state): Copy all registers that need to be copied. (process_state_between): Normalize all frame register records that fall within the specified PC range. (frame_translate): Take a processed frame description, and turn everything into addresses. (build_ia64_frame_state ): Find and create frame state record for a PC. (get_personality): Get the personality routine for a given frame. (get_except_table): Get the exception table for a given frame. (record_name): Unwind record names for debugging. (print_record): Print and unwind record. (print_all_records): Print an entire unwind image. (__ia64_backtrace): Print a backtrace. (ia64_backtrace_helper): New function. (__register_frame_info_aux): New function. * config/ia64/crtend.asm (__do_frame_setup_aux): New function. * frame.h (enum unw_record_type): New unwind record types. (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records. (struct unw_r_record, unwind_record): New unwind record structs. (struct unwind_info_ptr): Unwind information layout. (IA64_UNW_LOC_TYPE_*): Macros for different types for location descriptors. (struct ia64_reg_loc): Register location description. (struct ia64_frame_state): Location of all registers in a frame. (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO. * libgcc2.c (__ia64_personality_v1): Personality routine. (__calc_caller_bsp): Calculate the bsp register for the caller's frame. (ia64_throw_helper): Figure out who to return to and set up the registers. (__throw): Throw routine. * output.h (assemble_eh_align, assemble_eh_label): New functions to generate EH info where we want it. (assemble_eh_integer): New function. * toplev.c (compile_file): Output module level exception table for non-ia64 targets. (main): Set exceptions_via_longjump and flag_new_exceptions based on IA64_UNWIND_INFO too. * varasm.c (assemble_eh_label): Generate a label via ASM_OUTPUT_EH_LABEL if it has been specified. (assemble_eh_align): Generate an alignment directive via ASM_OUTPUT_EH_ALIGN if it has been specified. (assemble_eh_label): Generate an integer value via ASM_OUTPUT_EH_type if they have been specified. * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs. (ia64_init_builtins): Add __builtin_ia64_bsp and __builtin_ia64_flushrs. (ia64_expand_builtin): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.md (flushrs): New insn to flush the register stack. Add to unspec list. * config/ia64/crtbegin.asm (frame_object): Change size. (__do_frame_setup_aux): New function. * config/ia64/crtend.asm: call __do_frame_setup_aux. * config/ia64/t-ia64 (LIB2ADDEH): Add. * Makefile.in (LIB2ADDEH): Add. (LIB2ADD): Use LIB2ADDEH. Co-Authored-By: Andrew Haley <aph@cygnus.com> From-SVN: r34169
2000-05-25 15:21:51 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
cfun->eh->sjlj_fc
= assign_stack_local (TYPE_MODE (sjlj_fc_type_node),
int_size_in_bytes (sjlj_fc_type_node),
TYPE_ALIGN (sjlj_fc_type_node));
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
sjlj_assign_call_site_values (dispatch_label, lp_info);
sjlj_mark_call_sites (lp_info);
[multiple changes] Thu Jun 8 14:16:15 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * eh-common.h: Remove NEW_EH_MODEL compile time flag, and replace with flag_new_exceptions runtime flag. (struct old_exception_table): New struct which represents what the exception table looks like without the new model. (NEW_EH_RUNTIME): New value used as a tag in the exception table to flag that this is a new style table. * except.h: Remove compile time flag NEW_EH_MODEL. (expand_builtin_eh_stub_old): New prototype. * tree.h (enum built_in_function): Add BUILT_IN_EH_STUB_OLD. * expr.c (expand_builtin): New builtin func BUILT_IN_EH_STUB_OLD. * c-decl.c (init_decl_processing): Add new builtin function __builtin_eh_stub_old. * final.c (final_scan_insn): Replace compile time flag NEW_EH_MODEL. * flags.h (flag_new_exceptions): New runtime flag. * toplev.c (flag_new_exceptions): Initialize default to 0, -fnew-exceptions sets to 1. * except.c (output_exception_table_entry): Output New style exception identifier into table, and replace compile time flag NEW_EH_MODEL with runtime flag flag_new_exceptions. (output_exception_table): Replace compile time flag NEW_EH_MODEL. (expand_builtin_eh_stub_old): Duplicates original functionality of expand_builtin_eh_stub. (expand_builtin_eh_stub): Replace compile time flag NEW_EH_MODEL. * libgcc2.c (find_exception_handler): Remove NEW_EH_MODEL #ifdefs. (old_find_exception_handler): New func, same as find_exception_handler except it works on the old style exception table. (__throw): Replace NEW_EH_MODEL. Detect new model based on presence of identifier in the exception table, and call appropriate routines. 1998-06-08 Andrew MacLeod <amacleod@cygnus.com> * except.c (init_exception_processing): Remove NEW_EH_MODEL compile time flag. Call __cp_eh_info instead of __cp_exception_info. * exception.cc (struct cp_eh_info): Remove NEW_EH_MODEL flag. (__cp_exception_info): Return offset into cp_eh_info structure to match what use to be the start of this structure. (__cp_eh_info): New function to return a pointer to cp_eh_info struct. (__cplus_type_matcher, __cp_push_exception): Remove NEW_EH_MODEL compile time flag. (__uncatch_exception, __check_eh_spec, std::uncaught_exception): Call __cp_eh_info instead of __cp_exception_info. From-SVN: r20336
1998-06-08 12:43:28 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
sjlj_emit_function_enter (dispatch_label);
sjlj_emit_dispatch_table (dispatch_label, lp_info);
sjlj_emit_function_exit ();
}
[multiple changes] Thu Jun 8 14:16:15 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * eh-common.h: Remove NEW_EH_MODEL compile time flag, and replace with flag_new_exceptions runtime flag. (struct old_exception_table): New struct which represents what the exception table looks like without the new model. (NEW_EH_RUNTIME): New value used as a tag in the exception table to flag that this is a new style table. * except.h: Remove compile time flag NEW_EH_MODEL. (expand_builtin_eh_stub_old): New prototype. * tree.h (enum built_in_function): Add BUILT_IN_EH_STUB_OLD. * expr.c (expand_builtin): New builtin func BUILT_IN_EH_STUB_OLD. * c-decl.c (init_decl_processing): Add new builtin function __builtin_eh_stub_old. * final.c (final_scan_insn): Replace compile time flag NEW_EH_MODEL. * flags.h (flag_new_exceptions): New runtime flag. * toplev.c (flag_new_exceptions): Initialize default to 0, -fnew-exceptions sets to 1. * except.c (output_exception_table_entry): Output New style exception identifier into table, and replace compile time flag NEW_EH_MODEL with runtime flag flag_new_exceptions. (output_exception_table): Replace compile time flag NEW_EH_MODEL. (expand_builtin_eh_stub_old): Duplicates original functionality of expand_builtin_eh_stub. (expand_builtin_eh_stub): Replace compile time flag NEW_EH_MODEL. * libgcc2.c (find_exception_handler): Remove NEW_EH_MODEL #ifdefs. (old_find_exception_handler): New func, same as find_exception_handler except it works on the old style exception table. (__throw): Replace NEW_EH_MODEL. Detect new model based on presence of identifier in the exception table, and call appropriate routines. 1998-06-08 Andrew MacLeod <amacleod@cygnus.com> * except.c (init_exception_processing): Remove NEW_EH_MODEL compile time flag. Call __cp_eh_info instead of __cp_exception_info. * exception.cc (struct cp_eh_info): Remove NEW_EH_MODEL flag. (__cp_exception_info): Return offset into cp_eh_info structure to match what use to be the start of this structure. (__cp_eh_info): New function to return a pointer to cp_eh_info struct. (__cplus_type_matcher, __cp_push_exception): Remove NEW_EH_MODEL compile time flag. (__uncatch_exception, __check_eh_spec, std::uncaught_exception): Call __cp_eh_info instead of __cp_exception_info. From-SVN: r20336
1998-06-08 12:43:28 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
free (lp_info);
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
except.c (func_eh_entry): Add emitted field. 2000-05-25 Andrew MacLeod <amacleod@cygnus.com> Andrew Haley <aph@cygnus.com> * except.c (func_eh_entry): Add emitted field. (new_eh_region_entry): Set emitted field to 0; (output_exception_table_entry): Only emit previously un-emitted data, and send it to the eh_data section. (output_exception_table): Break out common parts. Output exception table for entire compilation unit to eh_data section. (output_exception_table_data): Common parts of output_exception_table. Send output to eh_data section. (output_function_exception_table): Output exception table data for a single function to eh_data section. (free_exception_table): New external to free the table. * except.h (free_exception_table): Add prototype. (output_function_exception_table): Add prototype. * final.c (final_end_function): Output function exception table for IA64_UNWIND_INFO. (final_scan_insn): Emit any unwind directives for an insn. * frame-dwarf2.c: New file containing all DWARF 2 specific code from frame.c. * frame.c: Remove all DWARF 2 specific code. * config/ia64/frame-ia64.c: New file. (gthread_stuff): Make all gthread available with IA64_UNWIND_INFO. (dwarf_fde): Define an IA64 struct for dwarf_fde. (__register_frame_info, __register_frame): Move to common area of file. (__register_frame_info_table, __register_frame_table): Move to common i area. (__deregister_frame_info, __deregister_frame): Move to common area. (__frame_init, find_fde): New versions for IA64_UNWIND_INFO. (read_uleb128): New version for ia64. (get_unwind_record): Read the next IA-64 unwind record. (read_R_record): Read a region header record. (process_a_b_reg_code): X record helper. (read_X_record): Read an X format record. (read_B_record): Read a B format record. (P3_record_types): List of record types matching the P3 format. (P7_record_types): List of record types matching the P7 format. (P8_record_types): List of record types matching the P8 format. (read_P_record): Read a P format record. (init_ia64_reg_loc): Set default fields for a register. (init_ia64_unwind_frame): Set defaults for all register records. (execute_one_ia64_descriptor): Execute one descriptor record. (rse_address_add): Calculate the position of a local reg in memory. (normalize_reg_loc): Turn a location descriptor into a memory address. (maybe_normalize_reg_loc): Only normalize a descriptor if it falls within a specified PC offset range. (get_real_reg_value): Given a register location, retrieve its value. (set_real_reg_value): Change the value of a register location. (copy_reg_value): Copy reg values, if needed. (copy_saved_reg_state): Copy all registers that need to be copied. (process_state_between): Normalize all frame register records that fall within the specified PC range. (frame_translate): Take a processed frame description, and turn everything into addresses. (build_ia64_frame_state ): Find and create frame state record for a PC. (get_personality): Get the personality routine for a given frame. (get_except_table): Get the exception table for a given frame. (record_name): Unwind record names for debugging. (print_record): Print and unwind record. (print_all_records): Print an entire unwind image. (__ia64_backtrace): Print a backtrace. (ia64_backtrace_helper): New function. (__register_frame_info_aux): New function. * config/ia64/crtend.asm (__do_frame_setup_aux): New function. * frame.h (enum unw_record_type): New unwind record types. (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records. (struct unw_r_record, unwind_record): New unwind record structs. (struct unwind_info_ptr): Unwind information layout. (IA64_UNW_LOC_TYPE_*): Macros for different types for location descriptors. (struct ia64_reg_loc): Register location description. (struct ia64_frame_state): Location of all registers in a frame. (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO. * libgcc2.c (__ia64_personality_v1): Personality routine. (__calc_caller_bsp): Calculate the bsp register for the caller's frame. (ia64_throw_helper): Figure out who to return to and set up the registers. (__throw): Throw routine. * output.h (assemble_eh_align, assemble_eh_label): New functions to generate EH info where we want it. (assemble_eh_integer): New function. * toplev.c (compile_file): Output module level exception table for non-ia64 targets. (main): Set exceptions_via_longjump and flag_new_exceptions based on IA64_UNWIND_INFO too. * varasm.c (assemble_eh_label): Generate a label via ASM_OUTPUT_EH_LABEL if it has been specified. (assemble_eh_align): Generate an alignment directive via ASM_OUTPUT_EH_ALIGN if it has been specified. (assemble_eh_label): Generate an integer value via ASM_OUTPUT_EH_type if they have been specified. * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs. (ia64_init_builtins): Add __builtin_ia64_bsp and __builtin_ia64_flushrs. (ia64_expand_builtin): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.md (flushrs): New insn to flush the register stack. Add to unspec list. * config/ia64/crtbegin.asm (frame_object): Change size. (__do_frame_setup_aux): New function. * config/ia64/crtend.asm: call __do_frame_setup_aux. * config/ia64/t-ia64 (LIB2ADDEH): Add. * Makefile.in (LIB2ADDEH): Add. (LIB2ADD): Use LIB2ADDEH. Co-Authored-By: Andrew Haley <aph@cygnus.com> From-SVN: r34169
2000-05-25 15:21:51 +00:00
void
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
finish_eh_generation ()
except.c (func_eh_entry): Add emitted field. 2000-05-25 Andrew MacLeod <amacleod@cygnus.com> Andrew Haley <aph@cygnus.com> * except.c (func_eh_entry): Add emitted field. (new_eh_region_entry): Set emitted field to 0; (output_exception_table_entry): Only emit previously un-emitted data, and send it to the eh_data section. (output_exception_table): Break out common parts. Output exception table for entire compilation unit to eh_data section. (output_exception_table_data): Common parts of output_exception_table. Send output to eh_data section. (output_function_exception_table): Output exception table data for a single function to eh_data section. (free_exception_table): New external to free the table. * except.h (free_exception_table): Add prototype. (output_function_exception_table): Add prototype. * final.c (final_end_function): Output function exception table for IA64_UNWIND_INFO. (final_scan_insn): Emit any unwind directives for an insn. * frame-dwarf2.c: New file containing all DWARF 2 specific code from frame.c. * frame.c: Remove all DWARF 2 specific code. * config/ia64/frame-ia64.c: New file. (gthread_stuff): Make all gthread available with IA64_UNWIND_INFO. (dwarf_fde): Define an IA64 struct for dwarf_fde. (__register_frame_info, __register_frame): Move to common area of file. (__register_frame_info_table, __register_frame_table): Move to common i area. (__deregister_frame_info, __deregister_frame): Move to common area. (__frame_init, find_fde): New versions for IA64_UNWIND_INFO. (read_uleb128): New version for ia64. (get_unwind_record): Read the next IA-64 unwind record. (read_R_record): Read a region header record. (process_a_b_reg_code): X record helper. (read_X_record): Read an X format record. (read_B_record): Read a B format record. (P3_record_types): List of record types matching the P3 format. (P7_record_types): List of record types matching the P7 format. (P8_record_types): List of record types matching the P8 format. (read_P_record): Read a P format record. (init_ia64_reg_loc): Set default fields for a register. (init_ia64_unwind_frame): Set defaults for all register records. (execute_one_ia64_descriptor): Execute one descriptor record. (rse_address_add): Calculate the position of a local reg in memory. (normalize_reg_loc): Turn a location descriptor into a memory address. (maybe_normalize_reg_loc): Only normalize a descriptor if it falls within a specified PC offset range. (get_real_reg_value): Given a register location, retrieve its value. (set_real_reg_value): Change the value of a register location. (copy_reg_value): Copy reg values, if needed. (copy_saved_reg_state): Copy all registers that need to be copied. (process_state_between): Normalize all frame register records that fall within the specified PC range. (frame_translate): Take a processed frame description, and turn everything into addresses. (build_ia64_frame_state ): Find and create frame state record for a PC. (get_personality): Get the personality routine for a given frame. (get_except_table): Get the exception table for a given frame. (record_name): Unwind record names for debugging. (print_record): Print and unwind record. (print_all_records): Print an entire unwind image. (__ia64_backtrace): Print a backtrace. (ia64_backtrace_helper): New function. (__register_frame_info_aux): New function. * config/ia64/crtend.asm (__do_frame_setup_aux): New function. * frame.h (enum unw_record_type): New unwind record types. (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records. (struct unw_r_record, unwind_record): New unwind record structs. (struct unwind_info_ptr): Unwind information layout. (IA64_UNW_LOC_TYPE_*): Macros for different types for location descriptors. (struct ia64_reg_loc): Register location description. (struct ia64_frame_state): Location of all registers in a frame. (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO. * libgcc2.c (__ia64_personality_v1): Personality routine. (__calc_caller_bsp): Calculate the bsp register for the caller's frame. (ia64_throw_helper): Figure out who to return to and set up the registers. (__throw): Throw routine. * output.h (assemble_eh_align, assemble_eh_label): New functions to generate EH info where we want it. (assemble_eh_integer): New function. * toplev.c (compile_file): Output module level exception table for non-ia64 targets. (main): Set exceptions_via_longjump and flag_new_exceptions based on IA64_UNWIND_INFO too. * varasm.c (assemble_eh_label): Generate a label via ASM_OUTPUT_EH_LABEL if it has been specified. (assemble_eh_align): Generate an alignment directive via ASM_OUTPUT_EH_ALIGN if it has been specified. (assemble_eh_label): Generate an integer value via ASM_OUTPUT_EH_type if they have been specified. * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs. (ia64_init_builtins): Add __builtin_ia64_bsp and __builtin_ia64_flushrs. (ia64_expand_builtin): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.md (flushrs): New insn to flush the register stack. Add to unspec list. * config/ia64/crtbegin.asm (frame_object): Change size. (__do_frame_setup_aux): New function. * config/ia64/crtend.asm: call __do_frame_setup_aux. * config/ia64/t-ia64 (LIB2ADDEH): Add. * Makefile.in (LIB2ADDEH): Add. (LIB2ADD): Use LIB2ADDEH. Co-Authored-By: Andrew Haley <aph@cygnus.com> From-SVN: r34169
2000-05-25 15:21:51 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Nothing to do if no regions created. */
if (cfun->eh->region_tree == NULL)
except.c (func_eh_entry): Add emitted field. 2000-05-25 Andrew MacLeod <amacleod@cygnus.com> Andrew Haley <aph@cygnus.com> * except.c (func_eh_entry): Add emitted field. (new_eh_region_entry): Set emitted field to 0; (output_exception_table_entry): Only emit previously un-emitted data, and send it to the eh_data section. (output_exception_table): Break out common parts. Output exception table for entire compilation unit to eh_data section. (output_exception_table_data): Common parts of output_exception_table. Send output to eh_data section. (output_function_exception_table): Output exception table data for a single function to eh_data section. (free_exception_table): New external to free the table. * except.h (free_exception_table): Add prototype. (output_function_exception_table): Add prototype. * final.c (final_end_function): Output function exception table for IA64_UNWIND_INFO. (final_scan_insn): Emit any unwind directives for an insn. * frame-dwarf2.c: New file containing all DWARF 2 specific code from frame.c. * frame.c: Remove all DWARF 2 specific code. * config/ia64/frame-ia64.c: New file. (gthread_stuff): Make all gthread available with IA64_UNWIND_INFO. (dwarf_fde): Define an IA64 struct for dwarf_fde. (__register_frame_info, __register_frame): Move to common area of file. (__register_frame_info_table, __register_frame_table): Move to common i area. (__deregister_frame_info, __deregister_frame): Move to common area. (__frame_init, find_fde): New versions for IA64_UNWIND_INFO. (read_uleb128): New version for ia64. (get_unwind_record): Read the next IA-64 unwind record. (read_R_record): Read a region header record. (process_a_b_reg_code): X record helper. (read_X_record): Read an X format record. (read_B_record): Read a B format record. (P3_record_types): List of record types matching the P3 format. (P7_record_types): List of record types matching the P7 format. (P8_record_types): List of record types matching the P8 format. (read_P_record): Read a P format record. (init_ia64_reg_loc): Set default fields for a register. (init_ia64_unwind_frame): Set defaults for all register records. (execute_one_ia64_descriptor): Execute one descriptor record. (rse_address_add): Calculate the position of a local reg in memory. (normalize_reg_loc): Turn a location descriptor into a memory address. (maybe_normalize_reg_loc): Only normalize a descriptor if it falls within a specified PC offset range. (get_real_reg_value): Given a register location, retrieve its value. (set_real_reg_value): Change the value of a register location. (copy_reg_value): Copy reg values, if needed. (copy_saved_reg_state): Copy all registers that need to be copied. (process_state_between): Normalize all frame register records that fall within the specified PC range. (frame_translate): Take a processed frame description, and turn everything into addresses. (build_ia64_frame_state ): Find and create frame state record for a PC. (get_personality): Get the personality routine for a given frame. (get_except_table): Get the exception table for a given frame. (record_name): Unwind record names for debugging. (print_record): Print and unwind record. (print_all_records): Print an entire unwind image. (__ia64_backtrace): Print a backtrace. (ia64_backtrace_helper): New function. (__register_frame_info_aux): New function. * config/ia64/crtend.asm (__do_frame_setup_aux): New function. * frame.h (enum unw_record_type): New unwind record types. (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records. (struct unw_r_record, unwind_record): New unwind record structs. (struct unwind_info_ptr): Unwind information layout. (IA64_UNW_LOC_TYPE_*): Macros for different types for location descriptors. (struct ia64_reg_loc): Register location description. (struct ia64_frame_state): Location of all registers in a frame. (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO. * libgcc2.c (__ia64_personality_v1): Personality routine. (__calc_caller_bsp): Calculate the bsp register for the caller's frame. (ia64_throw_helper): Figure out who to return to and set up the registers. (__throw): Throw routine. * output.h (assemble_eh_align, assemble_eh_label): New functions to generate EH info where we want it. (assemble_eh_integer): New function. * toplev.c (compile_file): Output module level exception table for non-ia64 targets. (main): Set exceptions_via_longjump and flag_new_exceptions based on IA64_UNWIND_INFO too. * varasm.c (assemble_eh_label): Generate a label via ASM_OUTPUT_EH_LABEL if it has been specified. (assemble_eh_align): Generate an alignment directive via ASM_OUTPUT_EH_ALIGN if it has been specified. (assemble_eh_label): Generate an integer value via ASM_OUTPUT_EH_type if they have been specified. * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs. (ia64_init_builtins): Add __builtin_ia64_bsp and __builtin_ia64_flushrs. (ia64_expand_builtin): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.md (flushrs): New insn to flush the register stack. Add to unspec list. * config/ia64/crtbegin.asm (frame_object): Change size. (__do_frame_setup_aux): New function. * config/ia64/crtend.asm: call __do_frame_setup_aux. * config/ia64/t-ia64 (LIB2ADDEH): Add. * Makefile.in (LIB2ADDEH): Add. (LIB2ADD): Use LIB2ADDEH. Co-Authored-By: Andrew Haley <aph@cygnus.com> From-SVN: r34169
2000-05-25 15:21:51 +00:00
return;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* The object here is to provide find_basic_blocks with detailed
information (via reachable_handlers) on how exception control
flows within the function. In this first pass, we can include
type information garnered from ERT_THROW and ERT_ALLOWED_EXCEPTIONS
regions, and hope that it will be useful in deleting unreachable
handlers. Subsequently, we will generate landing pads which will
connect many of the handlers, and then type information will not
be effective. Still, this is a win over previous implementations. */
basic-block.h (CLEANUP_NO_INSN_DEL): Define it. 2002-05-23 David S. Miller <davem@redhat.com> * basic-block.h (CLEANUP_NO_INSN_DEL): Define it. * cfgcleanup.c (cleanup_cfg): If it is set do not attempt to delete trivially dead insns. * except.c (finish_eh_generation): Pass it to cleanup_cfg. * toplev.c (rest_of_compilation): Document non-trivial aspect the RTL before optimize_save_area_alloca is run. From-SVN: r53789
2002-05-23 08:22:05 -07:00
cleanup_cfg (CLEANUP_PRE_LOOP | CLEANUP_NO_INSN_DEL);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* These registers are used by the landing pads. Make sure they
have been generated. */
except.c (get_exception_pointer, [...]): Take a struct function. * except.c (get_exception_pointer, get_exception_filter): Take a struct function. Update all callers. * except.h (get_exception_pointer): Update declaration. * expr.c (expand_expr): Update get_exception_pointer call. * integrate.c (expand_inline_function): Remap the exception pointer from callee to caller. From-SVN: r43060
2001-06-08 15:57:23 -07:00
get_exception_pointer (cfun);
get_exception_filter (cfun);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Construct the landing pads. */
assign_filter_values ();
build_post_landing_pads ();
connect_post_landing_pads ();
if (USING_SJLJ_EXCEPTIONS)
sjlj_build_landing_pads ();
else
dw2_build_landing_pads ();
except.c (func_eh_entry): Add emitted field. 2000-05-25 Andrew MacLeod <amacleod@cygnus.com> Andrew Haley <aph@cygnus.com> * except.c (func_eh_entry): Add emitted field. (new_eh_region_entry): Set emitted field to 0; (output_exception_table_entry): Only emit previously un-emitted data, and send it to the eh_data section. (output_exception_table): Break out common parts. Output exception table for entire compilation unit to eh_data section. (output_exception_table_data): Common parts of output_exception_table. Send output to eh_data section. (output_function_exception_table): Output exception table data for a single function to eh_data section. (free_exception_table): New external to free the table. * except.h (free_exception_table): Add prototype. (output_function_exception_table): Add prototype. * final.c (final_end_function): Output function exception table for IA64_UNWIND_INFO. (final_scan_insn): Emit any unwind directives for an insn. * frame-dwarf2.c: New file containing all DWARF 2 specific code from frame.c. * frame.c: Remove all DWARF 2 specific code. * config/ia64/frame-ia64.c: New file. (gthread_stuff): Make all gthread available with IA64_UNWIND_INFO. (dwarf_fde): Define an IA64 struct for dwarf_fde. (__register_frame_info, __register_frame): Move to common area of file. (__register_frame_info_table, __register_frame_table): Move to common i area. (__deregister_frame_info, __deregister_frame): Move to common area. (__frame_init, find_fde): New versions for IA64_UNWIND_INFO. (read_uleb128): New version for ia64. (get_unwind_record): Read the next IA-64 unwind record. (read_R_record): Read a region header record. (process_a_b_reg_code): X record helper. (read_X_record): Read an X format record. (read_B_record): Read a B format record. (P3_record_types): List of record types matching the P3 format. (P7_record_types): List of record types matching the P7 format. (P8_record_types): List of record types matching the P8 format. (read_P_record): Read a P format record. (init_ia64_reg_loc): Set default fields for a register. (init_ia64_unwind_frame): Set defaults for all register records. (execute_one_ia64_descriptor): Execute one descriptor record. (rse_address_add): Calculate the position of a local reg in memory. (normalize_reg_loc): Turn a location descriptor into a memory address. (maybe_normalize_reg_loc): Only normalize a descriptor if it falls within a specified PC offset range. (get_real_reg_value): Given a register location, retrieve its value. (set_real_reg_value): Change the value of a register location. (copy_reg_value): Copy reg values, if needed. (copy_saved_reg_state): Copy all registers that need to be copied. (process_state_between): Normalize all frame register records that fall within the specified PC range. (frame_translate): Take a processed frame description, and turn everything into addresses. (build_ia64_frame_state ): Find and create frame state record for a PC. (get_personality): Get the personality routine for a given frame. (get_except_table): Get the exception table for a given frame. (record_name): Unwind record names for debugging. (print_record): Print and unwind record. (print_all_records): Print an entire unwind image. (__ia64_backtrace): Print a backtrace. (ia64_backtrace_helper): New function. (__register_frame_info_aux): New function. * config/ia64/crtend.asm (__do_frame_setup_aux): New function. * frame.h (enum unw_record_type): New unwind record types. (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records. (struct unw_r_record, unwind_record): New unwind record structs. (struct unwind_info_ptr): Unwind information layout. (IA64_UNW_LOC_TYPE_*): Macros for different types for location descriptors. (struct ia64_reg_loc): Register location description. (struct ia64_frame_state): Location of all registers in a frame. (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO. * libgcc2.c (__ia64_personality_v1): Personality routine. (__calc_caller_bsp): Calculate the bsp register for the caller's frame. (ia64_throw_helper): Figure out who to return to and set up the registers. (__throw): Throw routine. * output.h (assemble_eh_align, assemble_eh_label): New functions to generate EH info where we want it. (assemble_eh_integer): New function. * toplev.c (compile_file): Output module level exception table for non-ia64 targets. (main): Set exceptions_via_longjump and flag_new_exceptions based on IA64_UNWIND_INFO too. * varasm.c (assemble_eh_label): Generate a label via ASM_OUTPUT_EH_LABEL if it has been specified. (assemble_eh_align): Generate an alignment directive via ASM_OUTPUT_EH_ALIGN if it has been specified. (assemble_eh_label): Generate an integer value via ASM_OUTPUT_EH_type if they have been specified. * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs. (ia64_init_builtins): Add __builtin_ia64_bsp and __builtin_ia64_flushrs. (ia64_expand_builtin): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.md (flushrs): New insn to flush the register stack. Add to unspec list. * config/ia64/crtbegin.asm (frame_object): Change size. (__do_frame_setup_aux): New function. * config/ia64/crtend.asm: call __do_frame_setup_aux. * config/ia64/t-ia64 (LIB2ADDEH): Add. * Makefile.in (LIB2ADDEH): Add. (LIB2ADD): Use LIB2ADDEH. Co-Authored-By: Andrew Haley <aph@cygnus.com> From-SVN: r34169
2000-05-25 15:21:51 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
cfun->eh->built_landing_pads = 1;
except.c (func_eh_entry): Add emitted field. 2000-05-25 Andrew MacLeod <amacleod@cygnus.com> Andrew Haley <aph@cygnus.com> * except.c (func_eh_entry): Add emitted field. (new_eh_region_entry): Set emitted field to 0; (output_exception_table_entry): Only emit previously un-emitted data, and send it to the eh_data section. (output_exception_table): Break out common parts. Output exception table for entire compilation unit to eh_data section. (output_exception_table_data): Common parts of output_exception_table. Send output to eh_data section. (output_function_exception_table): Output exception table data for a single function to eh_data section. (free_exception_table): New external to free the table. * except.h (free_exception_table): Add prototype. (output_function_exception_table): Add prototype. * final.c (final_end_function): Output function exception table for IA64_UNWIND_INFO. (final_scan_insn): Emit any unwind directives for an insn. * frame-dwarf2.c: New file containing all DWARF 2 specific code from frame.c. * frame.c: Remove all DWARF 2 specific code. * config/ia64/frame-ia64.c: New file. (gthread_stuff): Make all gthread available with IA64_UNWIND_INFO. (dwarf_fde): Define an IA64 struct for dwarf_fde. (__register_frame_info, __register_frame): Move to common area of file. (__register_frame_info_table, __register_frame_table): Move to common i area. (__deregister_frame_info, __deregister_frame): Move to common area. (__frame_init, find_fde): New versions for IA64_UNWIND_INFO. (read_uleb128): New version for ia64. (get_unwind_record): Read the next IA-64 unwind record. (read_R_record): Read a region header record. (process_a_b_reg_code): X record helper. (read_X_record): Read an X format record. (read_B_record): Read a B format record. (P3_record_types): List of record types matching the P3 format. (P7_record_types): List of record types matching the P7 format. (P8_record_types): List of record types matching the P8 format. (read_P_record): Read a P format record. (init_ia64_reg_loc): Set default fields for a register. (init_ia64_unwind_frame): Set defaults for all register records. (execute_one_ia64_descriptor): Execute one descriptor record. (rse_address_add): Calculate the position of a local reg in memory. (normalize_reg_loc): Turn a location descriptor into a memory address. (maybe_normalize_reg_loc): Only normalize a descriptor if it falls within a specified PC offset range. (get_real_reg_value): Given a register location, retrieve its value. (set_real_reg_value): Change the value of a register location. (copy_reg_value): Copy reg values, if needed. (copy_saved_reg_state): Copy all registers that need to be copied. (process_state_between): Normalize all frame register records that fall within the specified PC range. (frame_translate): Take a processed frame description, and turn everything into addresses. (build_ia64_frame_state ): Find and create frame state record for a PC. (get_personality): Get the personality routine for a given frame. (get_except_table): Get the exception table for a given frame. (record_name): Unwind record names for debugging. (print_record): Print and unwind record. (print_all_records): Print an entire unwind image. (__ia64_backtrace): Print a backtrace. (ia64_backtrace_helper): New function. (__register_frame_info_aux): New function. * config/ia64/crtend.asm (__do_frame_setup_aux): New function. * frame.h (enum unw_record_type): New unwind record types. (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records. (struct unw_r_record, unwind_record): New unwind record structs. (struct unwind_info_ptr): Unwind information layout. (IA64_UNW_LOC_TYPE_*): Macros for different types for location descriptors. (struct ia64_reg_loc): Register location description. (struct ia64_frame_state): Location of all registers in a frame. (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO. * libgcc2.c (__ia64_personality_v1): Personality routine. (__calc_caller_bsp): Calculate the bsp register for the caller's frame. (ia64_throw_helper): Figure out who to return to and set up the registers. (__throw): Throw routine. * output.h (assemble_eh_align, assemble_eh_label): New functions to generate EH info where we want it. (assemble_eh_integer): New function. * toplev.c (compile_file): Output module level exception table for non-ia64 targets. (main): Set exceptions_via_longjump and flag_new_exceptions based on IA64_UNWIND_INFO too. * varasm.c (assemble_eh_label): Generate a label via ASM_OUTPUT_EH_LABEL if it has been specified. (assemble_eh_align): Generate an alignment directive via ASM_OUTPUT_EH_ALIGN if it has been specified. (assemble_eh_label): Generate an integer value via ASM_OUTPUT_EH_type if they have been specified. * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs. (ia64_init_builtins): Add __builtin_ia64_bsp and __builtin_ia64_flushrs. (ia64_expand_builtin): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.md (flushrs): New insn to flush the register stack. Add to unspec list. * config/ia64/crtbegin.asm (frame_object): Change size. (__do_frame_setup_aux): New function. * config/ia64/crtend.asm: call __do_frame_setup_aux. * config/ia64/t-ia64 (LIB2ADDEH): Add. * Makefile.in (LIB2ADDEH): Add. (LIB2ADD): Use LIB2ADDEH. Co-Authored-By: Andrew Haley <aph@cygnus.com> From-SVN: r34169
2000-05-25 15:21:51 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* We've totally changed the CFG. Start over. */
find_exception_handler_labels ();
basic-block.h (CLEANUP_PRE_SIBCALL): New constant. * basic-block.h (CLEANUP_PRE_SIBCALL): New constant. * except.c (finish_eh_generation): Update call of cleanup_cfg; do rebuild_jump_labels instead of jump_optimize * sibcall.c (optimize_sibling_and_tail_recursive_call): Likewise. * toplev.c (rest_of_compulation): Likewise for -Wreturn_type. * flow.c (try_optimize_cfg): Remove unneeded code_labels. * flow.c: Include timevar.h (find_basic_block): Push/pop timevar; (cleanup_cfg): Likewise. * timevar.def (TV_CFG, TV_CLEANUP_CFG): New. * Makefile: Add dependencies on timevar.h * integrate.c (save_for_inline): Kill all BASIC_BLOCK notes. (copy_insn_list): Avoid killing of BASIC_BLOCK notes. * rtl.h (delete_trivially_dead_insns): Add new parameter. * toplev.c (rest_of_compilation): Update calls. * cse.c (set_live_p, insn_live_p, dead_libcall_p): Break out from ... (delete_trivially_dead_insns): ... here; accept new argument preserve_basic_blocks; preserve basic blocks if set. * reg-stack.c (stack_regs_mentioned): Return 0 if stack_regs_mentioned_data is not initialized. (reg_to_stack): Make stack_regs_mentioned survive after the reg-stack is completted; do not call cleanup_cfg. * toplev.c (rest_of_compilation): Do cleanup_cfg before bb-reorder; make cleanup_cfg after bb-reorder to output to debug file. From-SVN: r44056
2001-07-16 22:54:44 +02:00
rebuild_jump_labels (get_insns ());
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
find_basic_blocks (get_insns (), max_reg_num (), 0);
basic-block.h (CLEANUP_NO_INSN_DEL): Define it. 2002-05-23 David S. Miller <davem@redhat.com> * basic-block.h (CLEANUP_NO_INSN_DEL): Define it. * cfgcleanup.c (cleanup_cfg): If it is set do not attempt to delete trivially dead insns. * except.c (finish_eh_generation): Pass it to cleanup_cfg. * toplev.c (rest_of_compilation): Document non-trivial aspect the RTL before optimize_save_area_alloca is run. From-SVN: r53789
2002-05-23 08:22:05 -07:00
cleanup_cfg (CLEANUP_PRE_LOOP | CLEANUP_NO_INSN_DEL);
except.c (func_eh_entry): Add emitted field. 2000-05-25 Andrew MacLeod <amacleod@cygnus.com> Andrew Haley <aph@cygnus.com> * except.c (func_eh_entry): Add emitted field. (new_eh_region_entry): Set emitted field to 0; (output_exception_table_entry): Only emit previously un-emitted data, and send it to the eh_data section. (output_exception_table): Break out common parts. Output exception table for entire compilation unit to eh_data section. (output_exception_table_data): Common parts of output_exception_table. Send output to eh_data section. (output_function_exception_table): Output exception table data for a single function to eh_data section. (free_exception_table): New external to free the table. * except.h (free_exception_table): Add prototype. (output_function_exception_table): Add prototype. * final.c (final_end_function): Output function exception table for IA64_UNWIND_INFO. (final_scan_insn): Emit any unwind directives for an insn. * frame-dwarf2.c: New file containing all DWARF 2 specific code from frame.c. * frame.c: Remove all DWARF 2 specific code. * config/ia64/frame-ia64.c: New file. (gthread_stuff): Make all gthread available with IA64_UNWIND_INFO. (dwarf_fde): Define an IA64 struct for dwarf_fde. (__register_frame_info, __register_frame): Move to common area of file. (__register_frame_info_table, __register_frame_table): Move to common i area. (__deregister_frame_info, __deregister_frame): Move to common area. (__frame_init, find_fde): New versions for IA64_UNWIND_INFO. (read_uleb128): New version for ia64. (get_unwind_record): Read the next IA-64 unwind record. (read_R_record): Read a region header record. (process_a_b_reg_code): X record helper. (read_X_record): Read an X format record. (read_B_record): Read a B format record. (P3_record_types): List of record types matching the P3 format. (P7_record_types): List of record types matching the P7 format. (P8_record_types): List of record types matching the P8 format. (read_P_record): Read a P format record. (init_ia64_reg_loc): Set default fields for a register. (init_ia64_unwind_frame): Set defaults for all register records. (execute_one_ia64_descriptor): Execute one descriptor record. (rse_address_add): Calculate the position of a local reg in memory. (normalize_reg_loc): Turn a location descriptor into a memory address. (maybe_normalize_reg_loc): Only normalize a descriptor if it falls within a specified PC offset range. (get_real_reg_value): Given a register location, retrieve its value. (set_real_reg_value): Change the value of a register location. (copy_reg_value): Copy reg values, if needed. (copy_saved_reg_state): Copy all registers that need to be copied. (process_state_between): Normalize all frame register records that fall within the specified PC range. (frame_translate): Take a processed frame description, and turn everything into addresses. (build_ia64_frame_state ): Find and create frame state record for a PC. (get_personality): Get the personality routine for a given frame. (get_except_table): Get the exception table for a given frame. (record_name): Unwind record names for debugging. (print_record): Print and unwind record. (print_all_records): Print an entire unwind image. (__ia64_backtrace): Print a backtrace. (ia64_backtrace_helper): New function. (__register_frame_info_aux): New function. * config/ia64/crtend.asm (__do_frame_setup_aux): New function. * frame.h (enum unw_record_type): New unwind record types. (struct unw_p_record, unw_b_record, unw_x_record) : New unwind records. (struct unw_r_record, unwind_record): New unwind record structs. (struct unwind_info_ptr): Unwind information layout. (IA64_UNW_LOC_TYPE_*): Macros for different types for location descriptors. (struct ia64_reg_loc): Register location description. (struct ia64_frame_state): Location of all registers in a frame. (struct object): Add pc_base and fde_end for IA64_UNWIND_INFO. * libgcc2.c (__ia64_personality_v1): Personality routine. (__calc_caller_bsp): Calculate the bsp register for the caller's frame. (ia64_throw_helper): Figure out who to return to and set up the registers. (__throw): Throw routine. * output.h (assemble_eh_align, assemble_eh_label): New functions to generate EH info where we want it. (assemble_eh_integer): New function. * toplev.c (compile_file): Output module level exception table for non-ia64 targets. (main): Set exceptions_via_longjump and flag_new_exceptions based on IA64_UNWIND_INFO too. * varasm.c (assemble_eh_label): Generate a label via ASM_OUTPUT_EH_LABEL if it has been specified. (assemble_eh_align): Generate an alignment directive via ASM_OUTPUT_EH_ALIGN if it has been specified. (assemble_eh_label): Generate an integer value via ASM_OUTPUT_EH_type if they have been specified. * config/ia64/ia64.c (rtx_needs_barrier): Add flushrs. (ia64_init_builtins): Add __builtin_ia64_bsp and __builtin_ia64_flushrs. (ia64_expand_builtin): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and IA64_BUILTIN_FLUSHRS. * config/ia64/ia64.md (flushrs): New insn to flush the register stack. Add to unspec list. * config/ia64/crtbegin.asm (frame_object): Change size. (__do_frame_setup_aux): New function. * config/ia64/crtend.asm: call __do_frame_setup_aux. * config/ia64/t-ia64 (LIB2ADDEH): Add. * Makefile.in (LIB2ADDEH): Add. (LIB2ADD): Use LIB2ADDEH. Co-Authored-By: Andrew Haley <aph@cygnus.com> From-SVN: r34169
2000-05-25 15:21:51 +00:00
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
static hashval_t
ehl_hash (pentry)
const PTR pentry;
{
struct ehl_map_entry *entry = (struct ehl_map_entry *) pentry;
/* 2^32 * ((sqrt(5) - 1) / 2) */
const hashval_t scaled_golden_ratio = 0x9e3779b9;
return CODE_LABEL_NUMBER (entry->label) * scaled_golden_ratio;
}
static int
ehl_eq (pentry, pdata)
const PTR pentry;
const PTR pdata;
{
struct ehl_map_entry *entry = (struct ehl_map_entry *) pentry;
struct ehl_map_entry *data = (struct ehl_map_entry *) pdata;
return entry->label == data->label;
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* This section handles removing dead code for flow. */
[multiple changes] Thu Dec 11 20:42:18 1997 Teemu Torma <tot@trema.com> Thread-safe EH support for pthreads, DCE threads and Solaris threads. * integrate.c (expand_inline_function): If the inline fn uses eh context, make sure that the current fn has one. * toplev.c (rest_of_compilation): Call emit_eh_context. * except.c (use_eh_context): New fn. (get_eh_context_once): New fn. (call_get_eh_context): New fn. (emit_eh_context): New fn. (get_eh_context): Call either get_eh_context_once or call_get_eh_context, depending on what we have. (get_dynamic_handler_chain): Call get_eh_context_once. * except.h: Prototypes for fns above. * optabs.c (get_eh_context_libfunc): Removed. (init_optabs): Don't initialize it. * expr.h (get_eh_context_libfunc): Removed. * rtl.h, rtl.c: New reg_note REG_EH_CONTEXT. * config/pa/pa.h (CPP_SPEC): Support for -threads. * config/pa/pa-hpux10.h (LIB_SPEC): Ditto. * config/pa/t-pa (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): New multilib for -threads. * config/sparc/t-sol2: Added multilibs for -threads and made -pthreads alias to it. * config/sparc/sol2.h (CPP_SPEC, LIB_SPEC): Added -threads and -pthreads options. * libgcc-thr.h: New file. * libgcc2.c: (__get_cpp_eh_context): Removed. (struct cpp_eh_context): Removed. (struct eh_context): Replaced cpp_eh_context with generic language specific pointer. (__get_eh_info): New function. (__throw): Check eh_context::info. (__sjthrow): Ditto. * libgcc2.c: Include libgcc-thr.h. (new_eh_context, __get_eh_context, eh_pthread_initialize, eh_context_initialize, eh_context_static, eh_context_specific, eh_context_free): New functions. (get_eh_context, eh_context_key): New variables. (__sjthrow, __sjpopnthrow, __eh_pcnthrow, __throw): Use get_eh_context to get the context. (longjmp): Move the declaration inside #ifdef DONT_USE_BUILTIN_SETJMP. * frame.c: Include libgcc-thr.h. (object_mutex): Mutex to protect the object list. (find_fde, __register_frame, __register_frame_table, __deregister_frame): Hold the lock while accessing objects. * except.h (get_eh_context): Declare. * except.c (current_function_ehc): Define. (current_function_dhc, current_function_dcc): Removed. (get_eh_context): New function. (get_dynamic_handler_chain): Use get_eh_context. (get_saved_pc_ref): Ditto. (get_dynamic_cleanup_chain): Removed references to current_function_dcc. (save_eh_status, restore_eh_status): Save and restore current_function_ehc instead. * optabs.c (get_eh_context_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_eh_context_libfunc. * function.h (struct function): Replaced dhc and dcc with ehc. * except.c (get_saved_pc_ref): New functions. (eh_saved_pc_rtx, eh_saved_pc): Deleted. (expand_internal_throw_indirect): Use get_saved_pc_ref() instead of eh_saved_pc. (end_eh_unwinder): Likewise. (init_eh): Remove initialization of eh_saved_pc. * optabs.c (get_saved_pc_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_saved_pc_libfunc. * except.h (eh_saved_pc_rtx): Deleted. (get_saved_pc_ref): Declared. From Scott Snyder <snyder@d0sgif.fnal.gov>: * libgcc2.c (__get_saved_pc): New. (__eh_type, __eh_pc): Deleted. (__eh_pcnthrow): Use __get_saved_pc() instead of __eh_pc. (__get_dynamic_handler_chain): Move __dynamic_handler_chain inside this fcn. cp/: Thu Dec 11 20:43:33 1997 Teemu Torma <tot@trema.com> * decl.c (ptr_ptr_type_node): Define. (init_decl_processing): Initialize it. * cp-tree.h: Declare it. * exception.cc (__cp_exception_info): Use __get_eh_info. (__cp_push_exception): Ditto. (__cp_pop_exception): Ditto. From Scott Snyder <snyder@d0sgif.fnal.gov>: * except.c (expand_builtin_throw): Use get_saved_pc_ref instead of saved_pc. (init_exception_processing): Removed saved_pc initialization. From-SVN: r17052
1997-12-12 04:53:20 +00:00
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
/* Remove LABEL from exception_handler_label_map. */
[multiple changes] Thu Dec 11 20:42:18 1997 Teemu Torma <tot@trema.com> Thread-safe EH support for pthreads, DCE threads and Solaris threads. * integrate.c (expand_inline_function): If the inline fn uses eh context, make sure that the current fn has one. * toplev.c (rest_of_compilation): Call emit_eh_context. * except.c (use_eh_context): New fn. (get_eh_context_once): New fn. (call_get_eh_context): New fn. (emit_eh_context): New fn. (get_eh_context): Call either get_eh_context_once or call_get_eh_context, depending on what we have. (get_dynamic_handler_chain): Call get_eh_context_once. * except.h: Prototypes for fns above. * optabs.c (get_eh_context_libfunc): Removed. (init_optabs): Don't initialize it. * expr.h (get_eh_context_libfunc): Removed. * rtl.h, rtl.c: New reg_note REG_EH_CONTEXT. * config/pa/pa.h (CPP_SPEC): Support for -threads. * config/pa/pa-hpux10.h (LIB_SPEC): Ditto. * config/pa/t-pa (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): New multilib for -threads. * config/sparc/t-sol2: Added multilibs for -threads and made -pthreads alias to it. * config/sparc/sol2.h (CPP_SPEC, LIB_SPEC): Added -threads and -pthreads options. * libgcc-thr.h: New file. * libgcc2.c: (__get_cpp_eh_context): Removed. (struct cpp_eh_context): Removed. (struct eh_context): Replaced cpp_eh_context with generic language specific pointer. (__get_eh_info): New function. (__throw): Check eh_context::info. (__sjthrow): Ditto. * libgcc2.c: Include libgcc-thr.h. (new_eh_context, __get_eh_context, eh_pthread_initialize, eh_context_initialize, eh_context_static, eh_context_specific, eh_context_free): New functions. (get_eh_context, eh_context_key): New variables. (__sjthrow, __sjpopnthrow, __eh_pcnthrow, __throw): Use get_eh_context to get the context. (longjmp): Move the declaration inside #ifdef DONT_USE_BUILTIN_SETJMP. * frame.c: Include libgcc-thr.h. (object_mutex): Mutex to protect the object list. (find_fde, __register_frame, __register_frame_table, __deregister_frame): Hold the lock while accessing objects. * except.h (get_eh_context): Declare. * except.c (current_function_ehc): Define. (current_function_dhc, current_function_dcc): Removed. (get_eh_context): New function. (get_dynamic_handler_chain): Use get_eh_context. (get_saved_pc_ref): Ditto. (get_dynamic_cleanup_chain): Removed references to current_function_dcc. (save_eh_status, restore_eh_status): Save and restore current_function_ehc instead. * optabs.c (get_eh_context_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_eh_context_libfunc. * function.h (struct function): Replaced dhc and dcc with ehc. * except.c (get_saved_pc_ref): New functions. (eh_saved_pc_rtx, eh_saved_pc): Deleted. (expand_internal_throw_indirect): Use get_saved_pc_ref() instead of eh_saved_pc. (end_eh_unwinder): Likewise. (init_eh): Remove initialization of eh_saved_pc. * optabs.c (get_saved_pc_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_saved_pc_libfunc. * except.h (eh_saved_pc_rtx): Deleted. (get_saved_pc_ref): Declared. From Scott Snyder <snyder@d0sgif.fnal.gov>: * libgcc2.c (__get_saved_pc): New. (__eh_type, __eh_pc): Deleted. (__eh_pcnthrow): Use __get_saved_pc() instead of __eh_pc. (__get_dynamic_handler_chain): Move __dynamic_handler_chain inside this fcn. cp/: Thu Dec 11 20:43:33 1997 Teemu Torma <tot@trema.com> * decl.c (ptr_ptr_type_node): Define. (init_decl_processing): Initialize it. * cp-tree.h: Declare it. * exception.cc (__cp_exception_info): Use __get_eh_info. (__cp_push_exception): Ditto. (__cp_pop_exception): Ditto. From Scott Snyder <snyder@d0sgif.fnal.gov>: * except.c (expand_builtin_throw): Use get_saved_pc_ref instead of saved_pc. (init_exception_processing): Removed saved_pc initialization. From-SVN: r17052
1997-12-12 04:53:20 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static void
remove_exception_handler_label (label)
rtx label;
[multiple changes] Thu Dec 11 20:42:18 1997 Teemu Torma <tot@trema.com> Thread-safe EH support for pthreads, DCE threads and Solaris threads. * integrate.c (expand_inline_function): If the inline fn uses eh context, make sure that the current fn has one. * toplev.c (rest_of_compilation): Call emit_eh_context. * except.c (use_eh_context): New fn. (get_eh_context_once): New fn. (call_get_eh_context): New fn. (emit_eh_context): New fn. (get_eh_context): Call either get_eh_context_once or call_get_eh_context, depending on what we have. (get_dynamic_handler_chain): Call get_eh_context_once. * except.h: Prototypes for fns above. * optabs.c (get_eh_context_libfunc): Removed. (init_optabs): Don't initialize it. * expr.h (get_eh_context_libfunc): Removed. * rtl.h, rtl.c: New reg_note REG_EH_CONTEXT. * config/pa/pa.h (CPP_SPEC): Support for -threads. * config/pa/pa-hpux10.h (LIB_SPEC): Ditto. * config/pa/t-pa (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): New multilib for -threads. * config/sparc/t-sol2: Added multilibs for -threads and made -pthreads alias to it. * config/sparc/sol2.h (CPP_SPEC, LIB_SPEC): Added -threads and -pthreads options. * libgcc-thr.h: New file. * libgcc2.c: (__get_cpp_eh_context): Removed. (struct cpp_eh_context): Removed. (struct eh_context): Replaced cpp_eh_context with generic language specific pointer. (__get_eh_info): New function. (__throw): Check eh_context::info. (__sjthrow): Ditto. * libgcc2.c: Include libgcc-thr.h. (new_eh_context, __get_eh_context, eh_pthread_initialize, eh_context_initialize, eh_context_static, eh_context_specific, eh_context_free): New functions. (get_eh_context, eh_context_key): New variables. (__sjthrow, __sjpopnthrow, __eh_pcnthrow, __throw): Use get_eh_context to get the context. (longjmp): Move the declaration inside #ifdef DONT_USE_BUILTIN_SETJMP. * frame.c: Include libgcc-thr.h. (object_mutex): Mutex to protect the object list. (find_fde, __register_frame, __register_frame_table, __deregister_frame): Hold the lock while accessing objects. * except.h (get_eh_context): Declare. * except.c (current_function_ehc): Define. (current_function_dhc, current_function_dcc): Removed. (get_eh_context): New function. (get_dynamic_handler_chain): Use get_eh_context. (get_saved_pc_ref): Ditto. (get_dynamic_cleanup_chain): Removed references to current_function_dcc. (save_eh_status, restore_eh_status): Save and restore current_function_ehc instead. * optabs.c (get_eh_context_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_eh_context_libfunc. * function.h (struct function): Replaced dhc and dcc with ehc. * except.c (get_saved_pc_ref): New functions. (eh_saved_pc_rtx, eh_saved_pc): Deleted. (expand_internal_throw_indirect): Use get_saved_pc_ref() instead of eh_saved_pc. (end_eh_unwinder): Likewise. (init_eh): Remove initialization of eh_saved_pc. * optabs.c (get_saved_pc_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_saved_pc_libfunc. * except.h (eh_saved_pc_rtx): Deleted. (get_saved_pc_ref): Declared. From Scott Snyder <snyder@d0sgif.fnal.gov>: * libgcc2.c (__get_saved_pc): New. (__eh_type, __eh_pc): Deleted. (__eh_pcnthrow): Use __get_saved_pc() instead of __eh_pc. (__get_dynamic_handler_chain): Move __dynamic_handler_chain inside this fcn. cp/: Thu Dec 11 20:43:33 1997 Teemu Torma <tot@trema.com> * decl.c (ptr_ptr_type_node): Define. (init_decl_processing): Initialize it. * cp-tree.h: Declare it. * exception.cc (__cp_exception_info): Use __get_eh_info. (__cp_push_exception): Ditto. (__cp_pop_exception): Ditto. From Scott Snyder <snyder@d0sgif.fnal.gov>: * except.c (expand_builtin_throw): Use get_saved_pc_ref instead of saved_pc. (init_exception_processing): Removed saved_pc initialization. From-SVN: r17052
1997-12-12 04:53:20 +00:00
{
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
struct ehl_map_entry **slot, tmp;
except.c (call_get_eh_context): Don't mess with sequences. * except.c (call_get_eh_context): Don't mess with sequences. (emit_eh_context): Include the call in the sequence here. From-SVN: r17070
1997-12-12 09:23:52 +00:00
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
/* If exception_handler_label_map was not built yet,
except.c (remove_unreachable_regions): New. * except.c (remove_unreachable_regions): New. (free_eh_status): Clear exception_handler_labels. (convert_from_eh_region_ranges): Call remove_unreachable_regions. (find_exception_handler_labels): Don't add the same label more than once. (remove_exception_handler_label): Don't die if find_exception_handler_labels hasn't been called for the current function yet. From-SVN: r48845
2002-01-14 22:06:26 +01:00
there is nothing to do. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
if (cfun->eh->exception_handler_label_map == NULL)
except.c (remove_unreachable_regions): New. * except.c (remove_unreachable_regions): New. (free_eh_status): Clear exception_handler_labels. (convert_from_eh_region_ranges): Call remove_unreachable_regions. (find_exception_handler_labels): Don't add the same label more than once. (remove_exception_handler_label): Don't die if find_exception_handler_labels hasn't been called for the current function yet. From-SVN: r48845
2002-01-14 22:06:26 +01:00
return;
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
tmp.label = label;
slot = (struct ehl_map_entry **)
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
htab_find_slot (cfun->eh->exception_handler_label_map, &tmp, NO_INSERT);
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
if (! slot)
abort ();
[multiple changes] Thu Dec 11 20:42:18 1997 Teemu Torma <tot@trema.com> Thread-safe EH support for pthreads, DCE threads and Solaris threads. * integrate.c (expand_inline_function): If the inline fn uses eh context, make sure that the current fn has one. * toplev.c (rest_of_compilation): Call emit_eh_context. * except.c (use_eh_context): New fn. (get_eh_context_once): New fn. (call_get_eh_context): New fn. (emit_eh_context): New fn. (get_eh_context): Call either get_eh_context_once or call_get_eh_context, depending on what we have. (get_dynamic_handler_chain): Call get_eh_context_once. * except.h: Prototypes for fns above. * optabs.c (get_eh_context_libfunc): Removed. (init_optabs): Don't initialize it. * expr.h (get_eh_context_libfunc): Removed. * rtl.h, rtl.c: New reg_note REG_EH_CONTEXT. * config/pa/pa.h (CPP_SPEC): Support for -threads. * config/pa/pa-hpux10.h (LIB_SPEC): Ditto. * config/pa/t-pa (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): New multilib for -threads. * config/sparc/t-sol2: Added multilibs for -threads and made -pthreads alias to it. * config/sparc/sol2.h (CPP_SPEC, LIB_SPEC): Added -threads and -pthreads options. * libgcc-thr.h: New file. * libgcc2.c: (__get_cpp_eh_context): Removed. (struct cpp_eh_context): Removed. (struct eh_context): Replaced cpp_eh_context with generic language specific pointer. (__get_eh_info): New function. (__throw): Check eh_context::info. (__sjthrow): Ditto. * libgcc2.c: Include libgcc-thr.h. (new_eh_context, __get_eh_context, eh_pthread_initialize, eh_context_initialize, eh_context_static, eh_context_specific, eh_context_free): New functions. (get_eh_context, eh_context_key): New variables. (__sjthrow, __sjpopnthrow, __eh_pcnthrow, __throw): Use get_eh_context to get the context. (longjmp): Move the declaration inside #ifdef DONT_USE_BUILTIN_SETJMP. * frame.c: Include libgcc-thr.h. (object_mutex): Mutex to protect the object list. (find_fde, __register_frame, __register_frame_table, __deregister_frame): Hold the lock while accessing objects. * except.h (get_eh_context): Declare. * except.c (current_function_ehc): Define. (current_function_dhc, current_function_dcc): Removed. (get_eh_context): New function. (get_dynamic_handler_chain): Use get_eh_context. (get_saved_pc_ref): Ditto. (get_dynamic_cleanup_chain): Removed references to current_function_dcc. (save_eh_status, restore_eh_status): Save and restore current_function_ehc instead. * optabs.c (get_eh_context_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_eh_context_libfunc. * function.h (struct function): Replaced dhc and dcc with ehc. * except.c (get_saved_pc_ref): New functions. (eh_saved_pc_rtx, eh_saved_pc): Deleted. (expand_internal_throw_indirect): Use get_saved_pc_ref() instead of eh_saved_pc. (end_eh_unwinder): Likewise. (init_eh): Remove initialization of eh_saved_pc. * optabs.c (get_saved_pc_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_saved_pc_libfunc. * except.h (eh_saved_pc_rtx): Deleted. (get_saved_pc_ref): Declared. From Scott Snyder <snyder@d0sgif.fnal.gov>: * libgcc2.c (__get_saved_pc): New. (__eh_type, __eh_pc): Deleted. (__eh_pcnthrow): Use __get_saved_pc() instead of __eh_pc. (__get_dynamic_handler_chain): Move __dynamic_handler_chain inside this fcn. cp/: Thu Dec 11 20:43:33 1997 Teemu Torma <tot@trema.com> * decl.c (ptr_ptr_type_node): Define. (init_decl_processing): Initialize it. * cp-tree.h: Declare it. * exception.cc (__cp_exception_info): Use __get_eh_info. (__cp_push_exception): Ditto. (__cp_pop_exception): Ditto. From Scott Snyder <snyder@d0sgif.fnal.gov>: * except.c (expand_builtin_throw): Use get_saved_pc_ref instead of saved_pc. (init_exception_processing): Removed saved_pc initialization. From-SVN: r17052
1997-12-12 04:53:20 +00:00
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
htab_clear_slot (cfun->eh->exception_handler_label_map, (void **) slot);
[multiple changes] Thu Dec 11 20:42:18 1997 Teemu Torma <tot@trema.com> Thread-safe EH support for pthreads, DCE threads and Solaris threads. * integrate.c (expand_inline_function): If the inline fn uses eh context, make sure that the current fn has one. * toplev.c (rest_of_compilation): Call emit_eh_context. * except.c (use_eh_context): New fn. (get_eh_context_once): New fn. (call_get_eh_context): New fn. (emit_eh_context): New fn. (get_eh_context): Call either get_eh_context_once or call_get_eh_context, depending on what we have. (get_dynamic_handler_chain): Call get_eh_context_once. * except.h: Prototypes for fns above. * optabs.c (get_eh_context_libfunc): Removed. (init_optabs): Don't initialize it. * expr.h (get_eh_context_libfunc): Removed. * rtl.h, rtl.c: New reg_note REG_EH_CONTEXT. * config/pa/pa.h (CPP_SPEC): Support for -threads. * config/pa/pa-hpux10.h (LIB_SPEC): Ditto. * config/pa/t-pa (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): New multilib for -threads. * config/sparc/t-sol2: Added multilibs for -threads and made -pthreads alias to it. * config/sparc/sol2.h (CPP_SPEC, LIB_SPEC): Added -threads and -pthreads options. * libgcc-thr.h: New file. * libgcc2.c: (__get_cpp_eh_context): Removed. (struct cpp_eh_context): Removed. (struct eh_context): Replaced cpp_eh_context with generic language specific pointer. (__get_eh_info): New function. (__throw): Check eh_context::info. (__sjthrow): Ditto. * libgcc2.c: Include libgcc-thr.h. (new_eh_context, __get_eh_context, eh_pthread_initialize, eh_context_initialize, eh_context_static, eh_context_specific, eh_context_free): New functions. (get_eh_context, eh_context_key): New variables. (__sjthrow, __sjpopnthrow, __eh_pcnthrow, __throw): Use get_eh_context to get the context. (longjmp): Move the declaration inside #ifdef DONT_USE_BUILTIN_SETJMP. * frame.c: Include libgcc-thr.h. (object_mutex): Mutex to protect the object list. (find_fde, __register_frame, __register_frame_table, __deregister_frame): Hold the lock while accessing objects. * except.h (get_eh_context): Declare. * except.c (current_function_ehc): Define. (current_function_dhc, current_function_dcc): Removed. (get_eh_context): New function. (get_dynamic_handler_chain): Use get_eh_context. (get_saved_pc_ref): Ditto. (get_dynamic_cleanup_chain): Removed references to current_function_dcc. (save_eh_status, restore_eh_status): Save and restore current_function_ehc instead. * optabs.c (get_eh_context_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_eh_context_libfunc. * function.h (struct function): Replaced dhc and dcc with ehc. * except.c (get_saved_pc_ref): New functions. (eh_saved_pc_rtx, eh_saved_pc): Deleted. (expand_internal_throw_indirect): Use get_saved_pc_ref() instead of eh_saved_pc. (end_eh_unwinder): Likewise. (init_eh): Remove initialization of eh_saved_pc. * optabs.c (get_saved_pc_libfunc): New variable. (init_optabs): Initialize it. * expr.h: Declare get_saved_pc_libfunc. * except.h (eh_saved_pc_rtx): Deleted. (get_saved_pc_ref): Declared. From Scott Snyder <snyder@d0sgif.fnal.gov>: * libgcc2.c (__get_saved_pc): New. (__eh_type, __eh_pc): Deleted. (__eh_pcnthrow): Use __get_saved_pc() instead of __eh_pc. (__get_dynamic_handler_chain): Move __dynamic_handler_chain inside this fcn. cp/: Thu Dec 11 20:43:33 1997 Teemu Torma <tot@trema.com> * decl.c (ptr_ptr_type_node): Define. (init_decl_processing): Initialize it. * cp-tree.h: Declare it. * exception.cc (__cp_exception_info): Use __get_eh_info. (__cp_push_exception): Ditto. (__cp_pop_exception): Ditto. From Scott Snyder <snyder@d0sgif.fnal.gov>: * except.c (expand_builtin_throw): Use get_saved_pc_ref instead of saved_pc. (init_exception_processing): Removed saved_pc initialization. From-SVN: r17052
1997-12-12 04:53:20 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Splice REGION from the region tree etc. */
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
except.c (find_exception_handler_labels_1): New function. * except.c (find_exception_handler_labels_1): New function. (find_exception_handler_labels): Split into two functions, dive into CALL_PLACEHOLDERs when looking for exception handler labels. From-SVN: r33849
2000-05-11 16:20:31 +02:00
static void
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
remove_eh_handler (region)
struct eh_region *region;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
re PR c++/6320 (3.1 regression wrt 3.0: ICE in remove_eh_handler, at except.c:2696) PR c++/6320 * except.c (remove_eh_handler): Insert inner regions at beginning of sibling chain. Refactor expressions. * g++.dg/eh/dead1.C: New. From-SVN: r52397
2002-04-16 18:52:38 -07:00
struct eh_region **pp, **pp_start, *p, *outer, *inner;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
rtx lab;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* For the benefit of efficiently handling REG_EH_REGION notes,
replace this region in the region array with its containing
region. Note that previous region deletions may result in
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
multiple copies of this region in the array, so we have a
list of alternate numbers by which we are known. */
re PR c++/6320 (3.1 regression wrt 3.0: ICE in remove_eh_handler, at except.c:2696) PR c++/6320 * except.c (remove_eh_handler): Insert inner regions at beginning of sibling chain. Refactor expressions. * g++.dg/eh/dead1.C: New. From-SVN: r52397
2002-04-16 18:52:38 -07:00
outer = region->outer;
cfun->eh->region_array[region->region_number] = outer;
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
if (region->aka)
{
int i;
EXECUTE_IF_SET_IN_BITMAP (region->aka, 0, i,
re PR c++/6320 (3.1 regression wrt 3.0: ICE in remove_eh_handler, at except.c:2696) PR c++/6320 * except.c (remove_eh_handler): Insert inner regions at beginning of sibling chain. Refactor expressions. * g++.dg/eh/dead1.C: New. From-SVN: r52397
2002-04-16 18:52:38 -07:00
{ cfun->eh->region_array[i] = outer; });
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
}
re PR c++/6320 (3.1 regression wrt 3.0: ICE in remove_eh_handler, at except.c:2696) PR c++/6320 * except.c (remove_eh_handler): Insert inner regions at beginning of sibling chain. Refactor expressions. * g++.dg/eh/dead1.C: New. From-SVN: r52397
2002-04-16 18:52:38 -07:00
if (outer)
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
{
re PR c++/6320 (3.1 regression wrt 3.0: ICE in remove_eh_handler, at except.c:2696) PR c++/6320 * except.c (remove_eh_handler): Insert inner regions at beginning of sibling chain. Refactor expressions. * g++.dg/eh/dead1.C: New. From-SVN: r52397
2002-04-16 18:52:38 -07:00
if (!outer->aka)
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
outer->aka = BITMAP_GGC_ALLOC ();
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
if (region->aka)
re PR c++/6320 (3.1 regression wrt 3.0: ICE in remove_eh_handler, at except.c:2696) PR c++/6320 * except.c (remove_eh_handler): Insert inner regions at beginning of sibling chain. Refactor expressions. * g++.dg/eh/dead1.C: New. From-SVN: r52397
2002-04-16 18:52:38 -07:00
bitmap_a_or_b (outer->aka, outer->aka, region->aka);
bitmap_set_bit (outer->aka, region->region_number);
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (cfun->eh->built_landing_pads)
lab = region->landing_pad;
else
lab = region->label;
if (lab)
remove_exception_handler_label (lab);
re PR c++/6320 (3.1 regression wrt 3.0: ICE in remove_eh_handler, at except.c:2696) PR c++/6320 * except.c (remove_eh_handler): Insert inner regions at beginning of sibling chain. Refactor expressions. * g++.dg/eh/dead1.C: New. From-SVN: r52397
2002-04-16 18:52:38 -07:00
if (outer)
pp_start = &outer->inner;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
else
re PR c++/6320 (3.1 regression wrt 3.0: ICE in remove_eh_handler, at except.c:2696) PR c++/6320 * except.c (remove_eh_handler): Insert inner regions at beginning of sibling chain. Refactor expressions. * g++.dg/eh/dead1.C: New. From-SVN: r52397
2002-04-16 18:52:38 -07:00
pp_start = &cfun->eh->region_tree;
for (pp = pp_start, p = *pp; p != region; pp = &p->next_peer, p = *pp)
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
continue;
re PR c++/6320 (3.1 regression wrt 3.0: ICE in remove_eh_handler, at except.c:2696) PR c++/6320 * except.c (remove_eh_handler): Insert inner regions at beginning of sibling chain. Refactor expressions. * g++.dg/eh/dead1.C: New. From-SVN: r52397
2002-04-16 18:52:38 -07:00
*pp = region->next_peer;
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
re PR c++/6320 (3.1 regression wrt 3.0: ICE in remove_eh_handler, at except.c:2696) PR c++/6320 * except.c (remove_eh_handler): Insert inner regions at beginning of sibling chain. Refactor expressions. * g++.dg/eh/dead1.C: New. From-SVN: r52397
2002-04-16 18:52:38 -07:00
inner = region->inner;
if (inner)
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
re PR c++/6320 (3.1 regression wrt 3.0: ICE in remove_eh_handler, at except.c:2696) PR c++/6320 * except.c (remove_eh_handler): Insert inner regions at beginning of sibling chain. Refactor expressions. * g++.dg/eh/dead1.C: New. From-SVN: r52397
2002-04-16 18:52:38 -07:00
for (p = inner; p->next_peer ; p = p->next_peer)
p->outer = outer;
p->outer = outer;
p->next_peer = *pp_start;
*pp_start = inner;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
except.c (find_exception_handler_labels_1): New function. * except.c (find_exception_handler_labels_1): New function. (find_exception_handler_labels): Split into two functions, dive into CALL_PLACEHOLDERs when looking for exception handler labels. From-SVN: r33849
2000-05-11 16:20:31 +02:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (region->type == ERT_CATCH)
{
struct eh_region *try, *next, *prev;
except.c (find_exception_handler_labels_1): New function. * except.c (find_exception_handler_labels_1): New function. (find_exception_handler_labels): Split into two functions, dive into CALL_PLACEHOLDERs when looking for exception handler labels. From-SVN: r33849
2000-05-11 16:20:31 +02:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (try = region->next_peer;
try->type == ERT_CATCH;
try = try->next_peer)
continue;
if (try->type != ERT_TRY)
abort ();
except.c (find_exception_handler_labels_1): New function. * except.c (find_exception_handler_labels_1): New function. (find_exception_handler_labels): Split into two functions, dive into CALL_PLACEHOLDERs when looking for exception handler labels. From-SVN: r33849
2000-05-11 16:20:31 +02:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
next = region->u.catch.next_catch;
prev = region->u.catch.prev_catch;
except.c (find_exception_handler_labels_1): New function. * except.c (find_exception_handler_labels_1): New function. (find_exception_handler_labels): Split into two functions, dive into CALL_PLACEHOLDERs when looking for exception handler labels. From-SVN: r33849
2000-05-11 16:20:31 +02:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (next)
next->u.catch.prev_catch = prev;
else
try->u.try.last_catch = prev;
if (prev)
prev->u.catch.next_catch = next;
else
{
try->u.try.catch = next;
if (! next)
remove_eh_handler (try);
}
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* LABEL heads a basic block that is about to be deleted. If this
label corresponds to an exception region, we may be able to
delete the region. */
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
void
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
maybe_remove_eh_handler (label)
rtx label;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
struct ehl_map_entry **slot, tmp;
struct eh_region *region;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* ??? After generating landing pads, it's not so simple to determine
if the region data is completely unused. One must examine the
landing pad and the post landing pad, and whether an inner try block
is referencing the catch handlers directly. */
if (cfun->eh->built_landing_pads)
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
return;
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
tmp.label = label;
slot = (struct ehl_map_entry **)
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
htab_find_slot (cfun->eh->exception_handler_label_map, &tmp, NO_INSERT);
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
if (! slot)
return;
region = (*slot)->region;
if (! region)
return;
/* Flow will want to remove MUST_NOT_THROW regions as unreachable
because there is no path to the fallback call to terminate.
But the region continues to affect call-site data until there
are no more contained calls, which we don't see here. */
if (region->type == ERT_MUST_NOT_THROW)
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
{
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
htab_clear_slot (cfun->eh->exception_handler_label_map, (void **) slot);
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
region->label = NULL_RTX;
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
}
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
else
remove_eh_handler (region);
}
/* Invokes CALLBACK for every exception handler label. Only used by old
loop hackery; should not be used by new code. */
void
for_each_eh_label (callback)
void (*callback) PARAMS ((rtx));
{
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
htab_traverse (cfun->eh->exception_handler_label_map, for_each_eh_label_1,
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
(void *)callback);
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
}
basic-block.h (flow_delete_block_noexpunge): Declare. * basic-block.h (flow_delete_block_noexpunge): Declare. (expunge_block_nocompact): Declare. * cfg.c (expunge_block_nocompact): Split out from ... (expunge_block): ... here. * cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels. (flow_delete_block_noexpunge): Split out from ... (flow_delete_block): ... here. * cfgcleanup.c (delete_unreachable_blocks): Compact while removing dead blocks. * except.c (exception_handler_labels): Remove. (exception_handler_label_map): New. (struct eh_region): Add aka member. (mark_ehl_map_entry, mark_ehl_map, free_region): New. (ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New. (for_each_eh_label, for_each_eh_label_1): New. (init_eh): Register exception_handler_label_map. (free_eh_status): Use free_region. (find_exception_handler_labels): Use the map, not the list. (remove_exception_handler_label): Likewise. (maybe_remove_eh_handler): Likewise. (remove_eh_handler): Use the region aka bitmap. * except.h (exception_handler_labels): Remove. (for_each_eh_label): Declare. * jump.c (rebuild_jump_labels): Don't check exception_handler_labels. * loop.c (invalidate_loops_containing_label): New. (find_and_verify_loops): Use it. Use for_each_eh_label. * sched-rgn.c (is_cfg_nonregular): Use current_function_has_exception_handlers. From-SVN: r52100
2002-04-09 17:15:58 -07:00
static int
for_each_eh_label_1 (pentry, data)
PTR *pentry;
PTR data;
{
struct ehl_map_entry *entry = *(struct ehl_map_entry **)pentry;
void (*callback) PARAMS ((rtx)) = (void (*) PARAMS ((rtx))) data;
(*callback) (entry->label);
return 1;
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* This section describes CFG exception edges for flow. */
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* For communicating between calls to reachable_next_level. */
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
struct reachable_info GTY(())
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
tree types_caught;
tree types_allowed;
rtx handlers;
};
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* A subroutine of reachable_next_level. Return true if TYPE, or a
base class of TYPE, is in HANDLED. */
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static int
check_handled (handled, type)
tree handled, type;
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
tree t;
/* We can check for exact matches without front-end help. */
if (! lang_eh_type_covers)
except.h (struct eh_queue): Add `next' pointer. * except.h (struct eh_queue): Add `next' pointer. (struct eh_status): Make x_ehqueue a pointer. (push_ehqueue): Declare. (pop_ehqueue): Likewise. * except.c (expand_eh_region_end): Adjust now that ehqueue is a pointer. (expand_fixup_region_end): Likewise. (expand_leftover_cleanups): Likewise. (push_ehqueue): Define. (pop_ehqueue): Likewise. (emit_cleanup_handler): Use push_ehqueue and pop_ehqueue rather than doing it inline. (expand_start_all_catch): Adjust now that ehqueue is a pointer. (mark_eh_queue): Mark all level of the queue. (mark_eh_status): Adjust now that ehqueue is a pointer. (init_eh_for_function): Allocate ehqueue. (free_eh_status): Free it. * stmt.c (expand_cleanups): Save the ehqueue around the cleanup expansion for a fixup. From-SVN: r30874
1999-12-12 18:32:36 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (t = handled; t ; t = TREE_CHAIN (t))
if (TREE_VALUE (t) == type)
return 1;
}
else
{
for (t = handled; t ; t = TREE_CHAIN (t))
if ((*lang_eh_type_covers) (TREE_VALUE (t), type))
return 1;
except.h (struct eh_queue): Add `next' pointer. * except.h (struct eh_queue): Add `next' pointer. (struct eh_status): Make x_ehqueue a pointer. (push_ehqueue): Declare. (pop_ehqueue): Likewise. * except.c (expand_eh_region_end): Adjust now that ehqueue is a pointer. (expand_fixup_region_end): Likewise. (expand_leftover_cleanups): Likewise. (push_ehqueue): Define. (pop_ehqueue): Likewise. (emit_cleanup_handler): Use push_ehqueue and pop_ehqueue rather than doing it inline. (expand_start_all_catch): Adjust now that ehqueue is a pointer. (mark_eh_queue): Mark all level of the queue. (mark_eh_status): Adjust now that ehqueue is a pointer. (init_eh_for_function): Allocate ehqueue. (free_eh_status): Free it. * stmt.c (expand_cleanups): Save the ehqueue around the cleanup expansion for a fixup. From-SVN: r30874
1999-12-12 18:32:36 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return 0;
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* A subroutine of reachable_next_level. If we are collecting a list
of handlers, add one. After landing pad generation, reference
it instead of the handlers themselves. Further, the handlers are
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
all wired together, so by referencing one, we've got them all.
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
Before landing pad generation we reference each handler individually.
LP_REGION contains the landing pad; REGION is the handler. */
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
static void
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
add_reachable_handler (info, lp_region, region)
struct reachable_info *info;
struct eh_region *lp_region;
struct eh_region *region;
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! info)
return;
if (cfun->eh->built_landing_pads)
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! info->handlers)
info->handlers = alloc_INSN_LIST (lp_region->landing_pad, NULL_RTX);
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
else
info->handlers = alloc_INSN_LIST (region->label, info->handlers);
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
}
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
/* Process one level of exception regions for reachability.
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
If TYPE_THROWN is non-null, then it is the *exact* type being
propagated. If INFO is non-null, then collect handler labels
and caught/allowed type information between invocations. */
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static enum reachable_code
reachable_next_level (region, type_thrown, info)
struct eh_region *region;
tree type_thrown;
struct reachable_info *info;
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
switch (region->type)
{
case ERT_CLEANUP:
/* Before landing-pad generation, we model control flow
directly to the individual handlers. In this way we can
see that catch handler types may shadow one another. */
add_reachable_handler (info, region, region);
return RNL_MAYBE_CAUGHT;
case ERT_TRY:
{
struct eh_region *c;
enum reachable_code ret = RNL_NOT_CAUGHT;
emit-rtl.c (free_emit_status): Don't check DECL_DEFER_OUTPUT. * emit-rtl.c (free_emit_status): Don't check DECL_DEFER_OUTPUT. Free the struct. (mark_emit_status): Renamed from mark_emit_state. * except.c (mark_eh_status): Renamed from mark_eh_state. Check not null before marking. (free_eh_status): New. * expr.c (mark_expr_status, free_expr_status): New. * function.c (free_machine_status): New. (free_after_parsing): New. (free_after_compilation): Move bits to free_after_parsing; call free_eh_status, free_expr_status; zero the marked members of the function state. (prepare_function_start): No can_garbage_collect. Call init_eh_for_function. (expand_dummy_function_end): Free up current_function state. (mark_function_status): Renamed from mark_function_state. (mark_function_chain): No can_garbage_collect. Call mark_expr_status. * function.h (struct function): No can_garbage_collect. (free_machine_status, free_after_parsing): Declare. (free_eh_status, free_expr_status): Declare. * ggc.h (mark_expr_status): Declare. * stmt.c (free_stmt_status): Free the struct. (mark_stmt_status): Renamed from mark_stmt_state. (init_stmt): Don't call init_eh. (init_stmt_for_function): Don't call init_eh_for_function. * toplev.c (compile_file): Call init_eh. (rest_of_compilation): Free basic block info before ggc_collect. Call free_after_parsing; conditionally call free_after_compilation. * varasm.c (mark_varasm_status): Renamed from mark_varasm_state. Check not null before marking. From-SVN: r29448
1999-09-15 18:12:25 -07:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (c = region->u.try.catch; c ; c = c->u.catch.next_catch)
{
/* A catch-all handler ends the search. */
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
if (c->u.catch.type_list == NULL)
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
{
add_reachable_handler (info, region, c);
return RNL_CAUGHT;
}
if (type_thrown)
{
except.c: Fix comment typos. * except.c: Fix comment typos. * loop.c: Likewise. * varasm.c: Likewise. * doc/tm.texi: Fix a typo. From-SVN: r48488
2002-01-03 00:53:36 +00:00
/* If we have at least one type match, end the search. */
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
tree tp_node = c->u.catch.type_list;
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
for (; tp_node; tp_node = TREE_CHAIN (tp_node))
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
{
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
tree type = TREE_VALUE (tp_node);
if (type == type_thrown
|| (lang_eh_type_covers
&& (*lang_eh_type_covers) (type, type_thrown)))
{
add_reachable_handler (info, region, c);
return RNL_CAUGHT;
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
}
/* If we have definitive information of a match failure,
the catch won't trigger. */
if (lang_eh_type_covers)
return RNL_NOT_CAUGHT;
}
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
/* At this point, we either don't know what type is thrown or
don't have front-end assistance to help deciding if it is
covered by one of the types in the list for this region.
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
We'd then like to add this region to the list of reachable
handlers since it is indeed potentially reachable based on the
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
information we have.
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
Actually, this handler is for sure not reachable if all the
types it matches have already been caught. That is, it is only
potentially reachable if at least one of the types it catches
has not been previously caught. */
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! info)
ret = RNL_MAYBE_CAUGHT;
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
else
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
{
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
tree tp_node = c->u.catch.type_list;
bool maybe_reachable = false;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
/* Compute the potential reachability of this handler and
update the list of types caught at the same time. */
for (; tp_node; tp_node = TREE_CHAIN (tp_node))
{
tree type = TREE_VALUE (tp_node);
if (! check_handled (info->types_caught, type))
{
info->types_caught
= tree_cons (NULL, type, info->types_caught);
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
maybe_reachable = true;
}
}
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
if (maybe_reachable)
{
add_reachable_handler (info, region, c);
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
/* ??? If the catch type is a base class of every allowed
type, then we know we can stop the search. */
ret = RNL_MAYBE_CAUGHT;
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
}
}
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return ret;
}
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_ALLOWED_EXCEPTIONS:
/* An empty list of types definitely ends the search. */
if (region->u.allowed.type_list == NULL_TREE)
{
add_reachable_handler (info, region, region);
return RNL_CAUGHT;
}
Makefile.in (tree.o): Depend on ggc.h. * Makefile.in (tree.o): Depend on ggc.h. (varasm.o): Likewise. (function.o): Likewise. (stmt.o): Likewise. (except.o): Likewise. (optabs.o): Likewise. (emit-rtl.o): Likewise. * emit-rtl.c: Include ggc.h. (sequence_element_free_list): Remove, and all references. (mark_sequence): New functions. (mark_emit_state): New function. * except.c: Include ggc.h. (mark_eh_node, mark_eh_stack, mark_eh_queue): New functions. (mark_tree_label_node): New functions. (mark_eh_state): New function. * function.c: Include ggc.h. (mark_temp_slot, mark_function_chain): New functions. (mark_function_state): New function. (init_function_once): New function. * function.h (init_function_once): New function. * ggc-callbacks.c (lang_mark_false_label_stack): New function. * ggc.h (label_node): Declare. (eh_status, emit_status, stmt_status, varasm_status): Likewise. (lang_mark_false_label_stack): New function. (mark_temp_slot): Remove declaration. (mark_function_chain): Likewise. (mark_eh_state): Adjust prototype. (mark_stmt_state, mark_emit_state, mark_varasm_state, mark_optab): Likewise. * optabs.c: Include ggc.h. (mark_optab): New function. (init_optabs): Add gc roots. * stmt.c: Include ggc.h. (mark_cond_nesting, mark_loop_nesting): New functions. (mark_block_nesting, mark_case_nesting, mark_goto_fixup): Likewise. (mark_stmt_state): New function. * toplev.c (compile_file): Call init_function_once. * tree.c: Include ggc.h. (type_hash): Move declaration earlier in file. (TYPE_HASH_SIZE, type_hash_table): Likewise. (init_obstacks): Add gc roots. (mark_type_hash): New function. * varasm.c: Include ggc.h. (mark_pool_constant): New function. (mark_varasm_state): New function. Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk> Co-Authored-By: Mark Mitchell <mark@codesourcery.com> From-SVN: r29119
1999-09-04 19:41:35 -07:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Collect a list of lists of allowed types for use in detecting
when a catch may be transformed into a catch-all. */
if (info)
info->types_allowed = tree_cons (NULL_TREE,
region->u.allowed.type_list,
info->types_allowed);
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
ChangeLog.2, [...]: Fix spelling errors and typos. * ChangeLog.2, ChangeLog.3, ChangeLog.4, FSFChangeLog.10, FSFChangeLog.11, c-common.c, c-common.def, c-common.h, c-decl.c, c-dump.c, c-typeck.c, except.c, sdbout.c, simplify-rtx.c, timevar.h, tree.h, varasm.c: Fix spelling errors and typos. From-SVN: r46621
2001-10-29 23:01:45 +00:00
/* If we have definitive information about the type hierarchy,
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
then we can tell if the thrown type will pass through the
filter. */
if (type_thrown && lang_eh_type_covers)
{
if (check_handled (region->u.allowed.type_list, type_thrown))
return RNL_NOT_CAUGHT;
else
{
add_reachable_handler (info, region, region);
return RNL_CAUGHT;
}
}
emit-rtl.c (free_emit_status): Take decl as a parameter. * emit-rtl.c (free_emit_status): Take decl as a parameter. (init_emit_once): Add more GC roots. * except.c (mark_func_eh_entry): New function. (mark_eh_node): Mark false_label and rethrow_label. (init_eh): Add more GC roots. * function.c (free_after_compilation): Take decl as a paramter. Call free_stmt_status. (mark_function_state): Don't assume x_parm_reg_stack_loc is non-NULL. * function.h (free_after_compilation): Change prototype. (free_varasm_status): Likewise. (free_emit_status): Likewise. (free_stmt_status): New function. * ggc-simple.c (rtx, vecs, trees, strings, bytes_alloced_since_gc): Remove, replacing with ... (ggc_status): New structure. (ggc_chain): New variable. (init_gcc): Define. (ggc_push_context): New function. (ggc_pop_context): Likewise. (ggc_alloc_rtx): Adjust for use of ggc_chain. (ggc_alloc_rtvec): Likewise. (ggc_alloc_tree): Likewise. (ggc_alloc_string): Likewise. (ggc_mark_rtx): Mark NOTE_SOURCE_FILE and NOTE_RANGE_INFO. (ggc_mark_tree): Give language-dependent code a chance to mark `x' nodes. (ggc_mark_tree_varray): Handle empty arrays. (ggc_collect): Adjust for use of ggc_chain. Clear bytes_alloced_since_last_gc. * ggc.h (ggc_pop_context): New function. (ggc_push_context): Likewise. * print-tree.c (print_node): Don't print obstacks when GC'ing. * stmt.c (free_stmt_status): New function. (init_stmt_for_function): Clear last_expr_value. * toplev.c (rest_of_compilation): Always call free_after_compilation. Conditionalize call to ggc_collect. (main): Call init_ggc. * tree.c (push_obstacks): Do the push, even when GC'ing. (push_obstacks_nochange): Likewise. (pop_obstacks): Liekwise. * varasm.c (free_varasm_status): Take decl as a parameter. From-SVN: r29170
1999-09-07 15:20:58 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
add_reachable_handler (info, region, region);
return RNL_MAYBE_CAUGHT;
emit-rtl.c (free_emit_status): Take decl as a parameter. * emit-rtl.c (free_emit_status): Take decl as a parameter. (init_emit_once): Add more GC roots. * except.c (mark_func_eh_entry): New function. (mark_eh_node): Mark false_label and rethrow_label. (init_eh): Add more GC roots. * function.c (free_after_compilation): Take decl as a paramter. Call free_stmt_status. (mark_function_state): Don't assume x_parm_reg_stack_loc is non-NULL. * function.h (free_after_compilation): Change prototype. (free_varasm_status): Likewise. (free_emit_status): Likewise. (free_stmt_status): New function. * ggc-simple.c (rtx, vecs, trees, strings, bytes_alloced_since_gc): Remove, replacing with ... (ggc_status): New structure. (ggc_chain): New variable. (init_gcc): Define. (ggc_push_context): New function. (ggc_pop_context): Likewise. (ggc_alloc_rtx): Adjust for use of ggc_chain. (ggc_alloc_rtvec): Likewise. (ggc_alloc_tree): Likewise. (ggc_alloc_string): Likewise. (ggc_mark_rtx): Mark NOTE_SOURCE_FILE and NOTE_RANGE_INFO. (ggc_mark_tree): Give language-dependent code a chance to mark `x' nodes. (ggc_mark_tree_varray): Handle empty arrays. (ggc_collect): Adjust for use of ggc_chain. Clear bytes_alloced_since_last_gc. * ggc.h (ggc_pop_context): New function. (ggc_push_context): Likewise. * print-tree.c (print_node): Don't print obstacks when GC'ing. * stmt.c (free_stmt_status): New function. (init_stmt_for_function): Clear last_expr_value. * toplev.c (rest_of_compilation): Always call free_after_compilation. Conditionalize call to ggc_collect. (main): Call init_ggc. * tree.c (push_obstacks): Do the push, even when GC'ing. (push_obstacks_nochange): Likewise. (pop_obstacks): Liekwise. * varasm.c (free_varasm_status): Take decl as a parameter. From-SVN: r29170
1999-09-07 15:20:58 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_CATCH:
et-forest.c: Fix comment typos. * et-forest.c: Fix comment typos. * et-forest.h: Likewise. * except.c: Likewise. * expr.c: Likewise. * flags.h: Likewise. * flow.c: Likewise. * gcc.c: Likewise. * gcse.c: Likewise. * genattrtab.c: Likewise. * genautomata.c: Likewise. * gengtype.c: Likewise. * genrecog.c: Likewise. * global.c: Likewise. * gthr-rtems.h: Likewise. From-SVN: r61443
2003-01-17 14:24:24 +00:00
/* Catch regions are handled by their controlling try region. */
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return RNL_NOT_CAUGHT;
emit-rtl.c (free_emit_status): Take decl as a parameter. * emit-rtl.c (free_emit_status): Take decl as a parameter. (init_emit_once): Add more GC roots. * except.c (mark_func_eh_entry): New function. (mark_eh_node): Mark false_label and rethrow_label. (init_eh): Add more GC roots. * function.c (free_after_compilation): Take decl as a paramter. Call free_stmt_status. (mark_function_state): Don't assume x_parm_reg_stack_loc is non-NULL. * function.h (free_after_compilation): Change prototype. (free_varasm_status): Likewise. (free_emit_status): Likewise. (free_stmt_status): New function. * ggc-simple.c (rtx, vecs, trees, strings, bytes_alloced_since_gc): Remove, replacing with ... (ggc_status): New structure. (ggc_chain): New variable. (init_gcc): Define. (ggc_push_context): New function. (ggc_pop_context): Likewise. (ggc_alloc_rtx): Adjust for use of ggc_chain. (ggc_alloc_rtvec): Likewise. (ggc_alloc_tree): Likewise. (ggc_alloc_string): Likewise. (ggc_mark_rtx): Mark NOTE_SOURCE_FILE and NOTE_RANGE_INFO. (ggc_mark_tree): Give language-dependent code a chance to mark `x' nodes. (ggc_mark_tree_varray): Handle empty arrays. (ggc_collect): Adjust for use of ggc_chain. Clear bytes_alloced_since_last_gc. * ggc.h (ggc_pop_context): New function. (ggc_push_context): Likewise. * print-tree.c (print_node): Don't print obstacks when GC'ing. * stmt.c (free_stmt_status): New function. (init_stmt_for_function): Clear last_expr_value. * toplev.c (rest_of_compilation): Always call free_after_compilation. Conditionalize call to ggc_collect. (main): Call init_ggc. * tree.c (push_obstacks): Do the push, even when GC'ing. (push_obstacks_nochange): Likewise. (pop_obstacks): Liekwise. * varasm.c (free_varasm_status): Take decl as a parameter. From-SVN: r29170
1999-09-07 15:20:58 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_MUST_NOT_THROW:
/* Here we end our search, since no exceptions may propagate.
If we've touched down at some landing pad previous, then the
explicit function call we generated may be used. Otherwise
the call is made by the runtime. */
if (info && info->handlers)
emit-rtl.c (free_emit_status): Take decl as a parameter. * emit-rtl.c (free_emit_status): Take decl as a parameter. (init_emit_once): Add more GC roots. * except.c (mark_func_eh_entry): New function. (mark_eh_node): Mark false_label and rethrow_label. (init_eh): Add more GC roots. * function.c (free_after_compilation): Take decl as a paramter. Call free_stmt_status. (mark_function_state): Don't assume x_parm_reg_stack_loc is non-NULL. * function.h (free_after_compilation): Change prototype. (free_varasm_status): Likewise. (free_emit_status): Likewise. (free_stmt_status): New function. * ggc-simple.c (rtx, vecs, trees, strings, bytes_alloced_since_gc): Remove, replacing with ... (ggc_status): New structure. (ggc_chain): New variable. (init_gcc): Define. (ggc_push_context): New function. (ggc_pop_context): Likewise. (ggc_alloc_rtx): Adjust for use of ggc_chain. (ggc_alloc_rtvec): Likewise. (ggc_alloc_tree): Likewise. (ggc_alloc_string): Likewise. (ggc_mark_rtx): Mark NOTE_SOURCE_FILE and NOTE_RANGE_INFO. (ggc_mark_tree): Give language-dependent code a chance to mark `x' nodes. (ggc_mark_tree_varray): Handle empty arrays. (ggc_collect): Adjust for use of ggc_chain. Clear bytes_alloced_since_last_gc. * ggc.h (ggc_pop_context): New function. (ggc_push_context): Likewise. * print-tree.c (print_node): Don't print obstacks when GC'ing. * stmt.c (free_stmt_status): New function. (init_stmt_for_function): Clear last_expr_value. * toplev.c (rest_of_compilation): Always call free_after_compilation. Conditionalize call to ggc_collect. (main): Call init_ggc. * tree.c (push_obstacks): Do the push, even when GC'ing. (push_obstacks_nochange): Likewise. (pop_obstacks): Liekwise. * varasm.c (free_varasm_status): Take decl as a parameter. From-SVN: r29170
1999-09-07 15:20:58 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
add_reachable_handler (info, region, region);
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
return RNL_CAUGHT;
emit-rtl.c (free_emit_status): Take decl as a parameter. * emit-rtl.c (free_emit_status): Take decl as a parameter. (init_emit_once): Add more GC roots. * except.c (mark_func_eh_entry): New function. (mark_eh_node): Mark false_label and rethrow_label. (init_eh): Add more GC roots. * function.c (free_after_compilation): Take decl as a paramter. Call free_stmt_status. (mark_function_state): Don't assume x_parm_reg_stack_loc is non-NULL. * function.h (free_after_compilation): Change prototype. (free_varasm_status): Likewise. (free_emit_status): Likewise. (free_stmt_status): New function. * ggc-simple.c (rtx, vecs, trees, strings, bytes_alloced_since_gc): Remove, replacing with ... (ggc_status): New structure. (ggc_chain): New variable. (init_gcc): Define. (ggc_push_context): New function. (ggc_pop_context): Likewise. (ggc_alloc_rtx): Adjust for use of ggc_chain. (ggc_alloc_rtvec): Likewise. (ggc_alloc_tree): Likewise. (ggc_alloc_string): Likewise. (ggc_mark_rtx): Mark NOTE_SOURCE_FILE and NOTE_RANGE_INFO. (ggc_mark_tree): Give language-dependent code a chance to mark `x' nodes. (ggc_mark_tree_varray): Handle empty arrays. (ggc_collect): Adjust for use of ggc_chain. Clear bytes_alloced_since_last_gc. * ggc.h (ggc_pop_context): New function. (ggc_push_context): Likewise. * print-tree.c (print_node): Don't print obstacks when GC'ing. * stmt.c (free_stmt_status): New function. (init_stmt_for_function): Clear last_expr_value. * toplev.c (rest_of_compilation): Always call free_after_compilation. Conditionalize call to ggc_collect. (main): Call init_ggc. * tree.c (push_obstacks): Do the push, even when GC'ing. (push_obstacks_nochange): Likewise. (pop_obstacks): Liekwise. * varasm.c (free_varasm_status): Take decl as a parameter. From-SVN: r29170
1999-09-07 15:20:58 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
else
return RNL_BLOCKED;
emit-rtl.c (free_emit_status): Take decl as a parameter. * emit-rtl.c (free_emit_status): Take decl as a parameter. (init_emit_once): Add more GC roots. * except.c (mark_func_eh_entry): New function. (mark_eh_node): Mark false_label and rethrow_label. (init_eh): Add more GC roots. * function.c (free_after_compilation): Take decl as a paramter. Call free_stmt_status. (mark_function_state): Don't assume x_parm_reg_stack_loc is non-NULL. * function.h (free_after_compilation): Change prototype. (free_varasm_status): Likewise. (free_emit_status): Likewise. (free_stmt_status): New function. * ggc-simple.c (rtx, vecs, trees, strings, bytes_alloced_since_gc): Remove, replacing with ... (ggc_status): New structure. (ggc_chain): New variable. (init_gcc): Define. (ggc_push_context): New function. (ggc_pop_context): Likewise. (ggc_alloc_rtx): Adjust for use of ggc_chain. (ggc_alloc_rtvec): Likewise. (ggc_alloc_tree): Likewise. (ggc_alloc_string): Likewise. (ggc_mark_rtx): Mark NOTE_SOURCE_FILE and NOTE_RANGE_INFO. (ggc_mark_tree): Give language-dependent code a chance to mark `x' nodes. (ggc_mark_tree_varray): Handle empty arrays. (ggc_collect): Adjust for use of ggc_chain. Clear bytes_alloced_since_last_gc. * ggc.h (ggc_pop_context): New function. (ggc_push_context): Likewise. * print-tree.c (print_node): Don't print obstacks when GC'ing. * stmt.c (free_stmt_status): New function. (init_stmt_for_function): Clear last_expr_value. * toplev.c (rest_of_compilation): Always call free_after_compilation. Conditionalize call to ggc_collect. (main): Call init_ggc. * tree.c (push_obstacks): Do the push, even when GC'ing. (push_obstacks_nochange): Likewise. (pop_obstacks): Liekwise. * varasm.c (free_varasm_status): Take decl as a parameter. From-SVN: r29170
1999-09-07 15:20:58 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_THROW:
case ERT_FIXUP:
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
case ERT_UNKNOWN:
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Shouldn't see these here. */
break;
emit-rtl.c (free_emit_status): Take decl as a parameter. * emit-rtl.c (free_emit_status): Take decl as a parameter. (init_emit_once): Add more GC roots. * except.c (mark_func_eh_entry): New function. (mark_eh_node): Mark false_label and rethrow_label. (init_eh): Add more GC roots. * function.c (free_after_compilation): Take decl as a paramter. Call free_stmt_status. (mark_function_state): Don't assume x_parm_reg_stack_loc is non-NULL. * function.h (free_after_compilation): Change prototype. (free_varasm_status): Likewise. (free_emit_status): Likewise. (free_stmt_status): New function. * ggc-simple.c (rtx, vecs, trees, strings, bytes_alloced_since_gc): Remove, replacing with ... (ggc_status): New structure. (ggc_chain): New variable. (init_gcc): Define. (ggc_push_context): New function. (ggc_pop_context): Likewise. (ggc_alloc_rtx): Adjust for use of ggc_chain. (ggc_alloc_rtvec): Likewise. (ggc_alloc_tree): Likewise. (ggc_alloc_string): Likewise. (ggc_mark_rtx): Mark NOTE_SOURCE_FILE and NOTE_RANGE_INFO. (ggc_mark_tree): Give language-dependent code a chance to mark `x' nodes. (ggc_mark_tree_varray): Handle empty arrays. (ggc_collect): Adjust for use of ggc_chain. Clear bytes_alloced_since_last_gc. * ggc.h (ggc_pop_context): New function. (ggc_push_context): Likewise. * print-tree.c (print_node): Don't print obstacks when GC'ing. * stmt.c (free_stmt_status): New function. (init_stmt_for_function): Clear last_expr_value. * toplev.c (rest_of_compilation): Always call free_after_compilation. Conditionalize call to ggc_collect. (main): Call init_ggc. * tree.c (push_obstacks): Do the push, even when GC'ing. (push_obstacks_nochange): Likewise. (pop_obstacks): Liekwise. * varasm.c (free_varasm_status): Take decl as a parameter. From-SVN: r29170
1999-09-07 15:20:58 +00:00
}
emit-rtl.c (free_emit_status): Don't check DECL_DEFER_OUTPUT. * emit-rtl.c (free_emit_status): Don't check DECL_DEFER_OUTPUT. Free the struct. (mark_emit_status): Renamed from mark_emit_state. * except.c (mark_eh_status): Renamed from mark_eh_state. Check not null before marking. (free_eh_status): New. * expr.c (mark_expr_status, free_expr_status): New. * function.c (free_machine_status): New. (free_after_parsing): New. (free_after_compilation): Move bits to free_after_parsing; call free_eh_status, free_expr_status; zero the marked members of the function state. (prepare_function_start): No can_garbage_collect. Call init_eh_for_function. (expand_dummy_function_end): Free up current_function state. (mark_function_status): Renamed from mark_function_state. (mark_function_chain): No can_garbage_collect. Call mark_expr_status. * function.h (struct function): No can_garbage_collect. (free_machine_status, free_after_parsing): Declare. (free_eh_status, free_expr_status): Declare. * ggc.h (mark_expr_status): Declare. * stmt.c (free_stmt_status): Free the struct. (mark_stmt_status): Renamed from mark_stmt_state. (init_stmt): Don't call init_eh. (init_stmt_for_function): Don't call init_eh_for_function. * toplev.c (compile_file): Call init_eh. (rest_of_compilation): Free basic block info before ggc_collect. Call free_after_parsing; conditionally call free_after_compilation. * varasm.c (mark_varasm_status): Renamed from mark_varasm_state. Check not null before marking. From-SVN: r29448
1999-09-15 18:12:25 -07:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
abort ();
emit-rtl.c (free_emit_status): Don't check DECL_DEFER_OUTPUT. * emit-rtl.c (free_emit_status): Don't check DECL_DEFER_OUTPUT. Free the struct. (mark_emit_status): Renamed from mark_emit_state. * except.c (mark_eh_status): Renamed from mark_eh_state. Check not null before marking. (free_eh_status): New. * expr.c (mark_expr_status, free_expr_status): New. * function.c (free_machine_status): New. (free_after_parsing): New. (free_after_compilation): Move bits to free_after_parsing; call free_eh_status, free_expr_status; zero the marked members of the function state. (prepare_function_start): No can_garbage_collect. Call init_eh_for_function. (expand_dummy_function_end): Free up current_function state. (mark_function_status): Renamed from mark_function_state. (mark_function_chain): No can_garbage_collect. Call mark_expr_status. * function.h (struct function): No can_garbage_collect. (free_machine_status, free_after_parsing): Declare. (free_eh_status, free_expr_status): Declare. * ggc.h (mark_expr_status): Declare. * stmt.c (free_stmt_status): Free the struct. (mark_stmt_status): Renamed from mark_stmt_state. (init_stmt): Don't call init_eh. (init_stmt_for_function): Don't call init_eh_for_function. * toplev.c (compile_file): Call init_eh. (rest_of_compilation): Free basic block info before ggc_collect. Call free_after_parsing; conditionally call free_after_compilation. * varasm.c (mark_varasm_status): Renamed from mark_varasm_state. Check not null before marking. From-SVN: r29448
1999-09-15 18:12:25 -07:00
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Retrieve a list of labels of exception handlers which can be
reached by a given insn. */
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
rtx
reachable_handlers (insn)
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
rtx insn;
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct reachable_info info;
struct eh_region *region;
tree type_thrown;
int region_number;
except.c (can_throw): See through a SEQUENCE. * except.c (can_throw): See through a SEQUENCE. (nothrow_function_p): New fn. * except.h: Declare it. * function.c (current_function_nothrow): New var. (prepare_function_start): Initialize it. * output.h: Declare it. * toplev.c (rest_of_compilation): Set it. * dwarf2out.c (dwarf2out_begin_prologue): Use it. From-SVN: r32449
2000-03-09 14:01:47 -05:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (GET_CODE (insn) == JUMP_INSN
&& GET_CODE (PATTERN (insn)) == RESX)
region_number = XINT (PATTERN (insn), 0);
else
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
{
rtx note = find_reg_note (insn, REG_EH_REGION, NULL_RTX);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (!note || INTVAL (XEXP (note, 0)) <= 0)
return NULL;
region_number = INTVAL (XEXP (note, 0));
Add setjmp/longjmp exception handling. From-SVN: r13969
1997-04-23 20:11:52 +00:00
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
memset (&info, 0, sizeof (info));
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
region = cfun->eh->region_array[region_number];
except.c (can_throw): See through a SEQUENCE. * except.c (can_throw): See through a SEQUENCE. (nothrow_function_p): New fn. * except.h: Declare it. * function.c (current_function_nothrow): New var. (prepare_function_start): Initialize it. * output.h: Declare it. * toplev.c (rest_of_compilation): Set it. * dwarf2out.c (dwarf2out_begin_prologue): Use it. From-SVN: r32449
2000-03-09 14:01:47 -05:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
type_thrown = NULL_TREE;
except.c (reachable_handlers): Handle a region being removed out from under a RESX. * except.c (reachable_handlers): Handle a region being removed out from under a RESX. From-SVN: r44363
2001-07-25 12:59:39 -07:00
if (GET_CODE (insn) == JUMP_INSN
&& GET_CODE (PATTERN (insn)) == RESX)
{
/* A RESX leaves a region instead of entering it. Thus the
region itself may have been deleted out from under us. */
if (region == NULL)
return NULL;
region = region->outer;
}
else if (region->type == ERT_THROW)
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
{
type_thrown = region->u.throw.type;
region = region->outer;
}
except.c (nothrow_function_p): If -fno-exceptions, just return. * except.c (nothrow_function_p): If -fno-exceptions, just return. (init_eh_nesting_info): Likewise. From-SVN: r32454
2000-03-09 20:37:06 +00:00
re PR c++/8805 (compile time regression with many member variables) PR c++/8805 * except.c (eh_region_u_cleanup): Add prev_try. (expand_eh_region_end_cleanup): Set it. (reachable_handlers): Use it to skip over cleanup blocks. PR c++/8805 * g++.dg/eh/cleanup1.C: New test. From-SVN: r64465
2003-03-17 06:09:30 +00:00
while (region)
{
if (reachable_next_level (region, type_thrown, &info) >= RNL_CAUGHT)
except.c: Revert 04-01 and 04-02 forced-unwind changes. gcc/ * except.c: Revert 04-01 and 04-02 forced-unwind changes. * flags.h, toplev.c, doc/invoke.texi: Likewise. * unwind-dw2.c (_Unwind_GetCFA): Fix ptr->int conversion warning. * unwind.inc (_Unwind_DeleteException): Check for null exception_cleanup. * unwind-sjlj.c (_Unwind_SjLj_Resume_or_Rethrow): New. * unwind.inc (_Unwind_Resume_or_Rethrow): New. * unwind.h: Declare them. * libgcc-std.ver (GCC_3.3): Export them. gcc/cp/ * cfns.gperf: Comment out POSIX thread cancellation points, plus abort and raise. * cfns.h: Regenerate. gcc/testsuite/ * g++.dg/eh/forced1.C: Expect catch-all handlers to run. Verify exception_cleanup not called for rethrows. * g++.dg/eh/forced2.C: Test that exception_cleanup is called when exiting catch block without rethrowing. * g++.dg/eh/forced3.C: New. * g++.dg/eh/forced4.C: New. libstdc++-v3/ * libsupc++/eh_catch.cc (__cxa_begin_catch): Handle foreign exceptions. (__cxa_end_catch): Likewise. * libsupc++/eh_throw.cc (__cxa_rethrow): Likewise. Use _Unwind_Resume_or_Rethrow. * libsupc++/eh_personality.cc (empty_exception_spec): New. (PERSONALITY_FUNCTION): Don't ignore terminate or catch-all for _UA_FORCE_UNWIND. Honor empty filter spec for foreign exceptions. Don't push terminate/unexpected to cxa functions. (__cxa_call_unexpected): Remove foreign exception fixmes. From-SVN: r66583
2003-05-07 15:11:38 -07:00
break;
re PR c++/8805 (compile time regression with many member variables) PR c++/8805 * except.c (eh_region_u_cleanup): Add prev_try. (expand_eh_region_end_cleanup): Set it. (reachable_handlers): Use it to skip over cleanup blocks. PR c++/8805 * g++.dg/eh/cleanup1.C: New test. From-SVN: r64465
2003-03-17 06:09:30 +00:00
/* If we have processed one cleanup, there is no point in
processing any more of them. Each cleanup will have an edge
to the next outer cleanup region, so the flow graph will be
accurate. */
if (region->type == ERT_CLEANUP)
region = region->u.cleanup.prev_try;
else
region = region->outer;
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return info.handlers;
except.c (can_throw): See through a SEQUENCE. * except.c (can_throw): See through a SEQUENCE. (nothrow_function_p): New fn. * except.h: Declare it. * function.c (current_function_nothrow): New var. (prepare_function_start): Initialize it. * output.h: Declare it. * toplev.c (rest_of_compilation): Set it. * dwarf2out.c (dwarf2out_begin_prologue): Use it. From-SVN: r32449
2000-03-09 14:01:47 -05:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Determine if the given INSN can throw an exception that is caught
within the function. */
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
bool
can_throw_internal (insn)
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
rtx insn;
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *region;
tree type_thrown;
rtx note;
See ChangeLog.. Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com> See ChangeLog.. These are the files that were changed: * eh-common.h (struct eh_context): Add table_index for rethrows. * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes. * rtl.c (reg_note_name): Add strings for new reg_note enums. * expr.h (rethrow_libfunc): New library decl. * optabs.c (rethrow_libfunc): Initialize. * except.h (struct eh_entry): Add new field 'rethrow_label'. * except.c (create_rethrow_ref): New function to create a single * flow.c (make_edges): Add different edges for rethrow calls, * integrate.c (save_for_inline_eh_labelmap): New callback routine to * libgcc2.c (find_exception_handler): Generalize to enable it to * cp/except.c * cp/exception.cc From-SVN: r24194
1998-12-08 14:04:03 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! INSN_P (insn))
return false;
Manson: Doc + Manson: Doc + (add_partial_entry): New routine. (expand_start_try_stmts): Moved from cp/except.c. (expand_start_all_catch): Move functionality of expand_end_try_stmts here. From-SVN: r12716
1996-09-14 20:47:01 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (GET_CODE (insn) == INSN
&& GET_CODE (PATTERN (insn)) == SEQUENCE)
insn = XVECEXP (PATTERN (insn), 0, 0);
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (GET_CODE (insn) == CALL_INSN
&& GET_CODE (PATTERN (insn)) == CALL_PLACEHOLDER)
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int i;
for (i = 0; i < 3; ++i)
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
rtx sub = XEXP (PATTERN (insn), i);
for (; sub ; sub = NEXT_INSN (sub))
if (can_throw_internal (sub))
return true;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return false;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Every insn that might throw has an EH_REGION note. */
note = find_reg_note (insn, REG_EH_REGION, NULL_RTX);
if (!note || INTVAL (XEXP (note, 0)) <= 0)
return false;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
region = cfun->eh->region_array[INTVAL (XEXP (note, 0))];
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
type_thrown = NULL_TREE;
if (region->type == ERT_THROW)
{
type_thrown = region->u.throw.type;
region = region->outer;
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* If this exception is ignored by each and every containing region,
then control passes straight out. The runtime may handle some
regions, which also do not require processing internally. */
for (; region; region = region->outer)
{
enum reachable_code how = reachable_next_level (region, type_thrown, 0);
if (how == RNL_BLOCKED)
return false;
if (how != RNL_NOT_CAUGHT)
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
return true;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return false;
}
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Determine if the given INSN can throw an exception that is
visible outside the function. */
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
bool
can_throw_external (insn)
rtx insn;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *region;
tree type_thrown;
rtx note;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! INSN_P (insn))
return false;
if (GET_CODE (insn) == INSN
&& GET_CODE (PATTERN (insn)) == SEQUENCE)
insn = XVECEXP (PATTERN (insn), 0, 0);
if (GET_CODE (insn) == CALL_INSN
&& GET_CODE (PATTERN (insn)) == CALL_PLACEHOLDER)
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int i;
for (i = 0; i < 3; ++i)
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
rtx sub = XEXP (PATTERN (insn), i);
for (; sub ; sub = NEXT_INSN (sub))
if (can_throw_external (sub))
return true;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return false;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
note = find_reg_note (insn, REG_EH_REGION, NULL_RTX);
if (!note)
{
/* Calls (and trapping insns) without notes are outside any
exception handling region in this function. We have to
assume it might throw. Given that the front end and middle
ends mark known NOTHROW functions, this isn't so wildly
inaccurate. */
return (GET_CODE (insn) == CALL_INSN
|| (flag_non_call_exceptions
&& may_trap_p (PATTERN (insn))));
}
if (INTVAL (XEXP (note, 0)) <= 0)
return false;
region = cfun->eh->region_array[INTVAL (XEXP (note, 0))];
type_thrown = NULL_TREE;
if (region->type == ERT_THROW)
{
type_thrown = region->u.throw.type;
region = region->outer;
}
/* If the exception is caught or blocked by any containing region,
then it is not seen by any calling function. */
for (; region ; region = region->outer)
if (reachable_next_level (region, type_thrown, NULL) >= RNL_CAUGHT)
return false;
return true;
Initial revision From-SVN: r12551
1996-07-23 20:20:04 +00:00
}
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
function.h (struct function): Add flag all_throwers_are_sibcalls. 2002-08-24 Stuart Hastings <stuart@apple.com> * function.h (struct function): Add flag all_throwers_are_sibcalls. * except.c (set_nothrow_function_flags): Replaces nothrow_function_p. Set new flag. * except.h (set_nothrow_function_flags): Replaces nothrow_function_p. * dwarf2out.c (struct dw_fde_struct): Add flag all_throwers_are_sibcalls. (output_call_frame_info): Test it. (dwarf2out_begin_prologue) Propagate it from cfun to dw_fde_struct. * toplev.c (rest_of_compilation): Update calls to nothrow_function_p. From-SVN: r56561
2002-08-25 05:21:11 +00:00
/* Set current_function_nothrow and cfun->all_throwers_are_sibcalls. */
flow.c (count_basic_blocks, [...]): A rethrow can occur outside of an EH region. * flow.c (count_basic_blocks, find_basic_blocks_1): A rethrow can occur outside of an EH region. * except.c: Correct comments about rethrow behavior. (rethrow_symbol_map): Do nothing if !flag_new_exceptions. * flow.c (make_edges): Always call make_eh_edge for calls. From-SVN: r32432
2000-03-08 16:30:17 -05:00
function.h (struct function): Add flag all_throwers_are_sibcalls. 2002-08-24 Stuart Hastings <stuart@apple.com> * function.h (struct function): Add flag all_throwers_are_sibcalls. * except.c (set_nothrow_function_flags): Replaces nothrow_function_p. Set new flag. * except.h (set_nothrow_function_flags): Replaces nothrow_function_p. * dwarf2out.c (struct dw_fde_struct): Add flag all_throwers_are_sibcalls. (output_call_frame_info): Test it. (dwarf2out_begin_prologue) Propagate it from cfun to dw_fde_struct. * toplev.c (rest_of_compilation): Update calls to nothrow_function_p. From-SVN: r56561
2002-08-25 05:21:11 +00:00
void
set_nothrow_function_flags ()
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
{
rtx insn;
function.h (struct function): Add flag all_throwers_are_sibcalls. 2002-08-24 Stuart Hastings <stuart@apple.com> * function.h (struct function): Add flag all_throwers_are_sibcalls. * except.c (set_nothrow_function_flags): Replaces nothrow_function_p. Set new flag. * except.h (set_nothrow_function_flags): Replaces nothrow_function_p. * dwarf2out.c (struct dw_fde_struct): Add flag all_throwers_are_sibcalls. (output_call_frame_info): Test it. (dwarf2out_begin_prologue) Propagate it from cfun to dw_fde_struct. * toplev.c (rest_of_compilation): Update calls to nothrow_function_p. From-SVN: r56561
2002-08-25 05:21:11 +00:00
current_function_nothrow = 1;
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
function.h (struct function): Add flag all_throwers_are_sibcalls. 2002-08-24 Stuart Hastings <stuart@apple.com> * function.h (struct function): Add flag all_throwers_are_sibcalls. * except.c (set_nothrow_function_flags): Replaces nothrow_function_p. Set new flag. * except.h (set_nothrow_function_flags): Replaces nothrow_function_p. * dwarf2out.c (struct dw_fde_struct): Add flag all_throwers_are_sibcalls. (output_call_frame_info): Test it. (dwarf2out_begin_prologue) Propagate it from cfun to dw_fde_struct. * toplev.c (rest_of_compilation): Update calls to nothrow_function_p. From-SVN: r56561
2002-08-25 05:21:11 +00:00
/* Assume cfun->all_throwers_are_sibcalls until we encounter
something that can throw an exception. We specifically exempt
CALL_INSNs that are SIBLING_CALL_P, as these are really jumps,
and can't throw. Most CALL_INSNs are not SIBLING_CALL_P, so this
is optimistic. */
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
function.h (struct function): Add flag all_throwers_are_sibcalls. 2002-08-24 Stuart Hastings <stuart@apple.com> * function.h (struct function): Add flag all_throwers_are_sibcalls. * except.c (set_nothrow_function_flags): Replaces nothrow_function_p. Set new flag. * except.h (set_nothrow_function_flags): Replaces nothrow_function_p. * dwarf2out.c (struct dw_fde_struct): Add flag all_throwers_are_sibcalls. (output_call_frame_info): Test it. (dwarf2out_begin_prologue) Propagate it from cfun to dw_fde_struct. * toplev.c (rest_of_compilation): Update calls to nothrow_function_p. From-SVN: r56561
2002-08-25 05:21:11 +00:00
cfun->all_throwers_are_sibcalls = 1;
if (! flag_exceptions)
return;
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
for (insn = get_insns (); insn; insn = NEXT_INSN (insn))
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (can_throw_external (insn))
function.h (struct function): Add flag all_throwers_are_sibcalls. 2002-08-24 Stuart Hastings <stuart@apple.com> * function.h (struct function): Add flag all_throwers_are_sibcalls. * except.c (set_nothrow_function_flags): Replaces nothrow_function_p. Set new flag. * except.h (set_nothrow_function_flags): Replaces nothrow_function_p. * dwarf2out.c (struct dw_fde_struct): Add flag all_throwers_are_sibcalls. (output_call_frame_info): Test it. (dwarf2out_begin_prologue) Propagate it from cfun to dw_fde_struct. * toplev.c (rest_of_compilation): Update calls to nothrow_function_p. From-SVN: r56561
2002-08-25 05:21:11 +00:00
{
current_function_nothrow = 0;
if (GET_CODE (insn) != CALL_INSN || !SIBLING_CALL_P (insn))
{
cfun->all_throwers_are_sibcalls = 0;
return;
}
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (insn = current_function_epilogue_delay_list; insn;
insn = XEXP (insn, 1))
function.h (struct function): Add flag all_throwers_are_sibcalls. 2002-08-24 Stuart Hastings <stuart@apple.com> * function.h (struct function): Add flag all_throwers_are_sibcalls. * except.c (set_nothrow_function_flags): Replaces nothrow_function_p. Set new flag. * except.h (set_nothrow_function_flags): Replaces nothrow_function_p. * dwarf2out.c (struct dw_fde_struct): Add flag all_throwers_are_sibcalls. (output_call_frame_info): Test it. (dwarf2out_begin_prologue) Propagate it from cfun to dw_fde_struct. * toplev.c (rest_of_compilation): Update calls to nothrow_function_p. From-SVN: r56561
2002-08-25 05:21:11 +00:00
if (can_throw_external (insn))
{
current_function_nothrow = 0;
cse.c (delete_trivially_dead_insns): Replace alloca with xmalloc/xcalloc. * cse.c (delete_trivially_dead_insns): Replace alloca with xmalloc/xcalloc. * except.c (update_rethrow_references): Likewise. (init_eh_nesting_info): Likewise. * function.c (identify_blocks): Likewise. * gcse.c (dump_hash_table): Likewise. * graph.c (print_rtl_graph_with_bb): Likewise. * loop.c (combine_movables): Likewise. (move_movables): Likewise. (count_loop_regs_set): Likewise. (strength_reduce): Likewise. * profile.c (compute_branch_probabilities): New function, split out from ... (branch_prob): Here. Replace alloca with xmalloc/xcalloc. * regclass.c (regclass): Likewise. * regmove.c (regmove_optimize): Likewise. * toplev.c (compile_file): Likewise. (main): Don't mess with the stack rlimit. From-SVN: r30445
1999-11-08 04:56:18 +00:00
function.h (struct function): Add flag all_throwers_are_sibcalls. 2002-08-24 Stuart Hastings <stuart@apple.com> * function.h (struct function): Add flag all_throwers_are_sibcalls. * except.c (set_nothrow_function_flags): Replaces nothrow_function_p. Set new flag. * except.h (set_nothrow_function_flags): Replaces nothrow_function_p. * dwarf2out.c (struct dw_fde_struct): Add flag all_throwers_are_sibcalls. (output_call_frame_info): Test it. (dwarf2out_begin_prologue) Propagate it from cfun to dw_fde_struct. * toplev.c (rest_of_compilation): Update calls to nothrow_function_p. From-SVN: r56561
2002-08-25 05:21:11 +00:00
if (GET_CODE (insn) != CALL_INSN || !SIBLING_CALL_P (insn))
{
cfun->all_throwers_are_sibcalls = 0;
return;
}
}
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Various hooks for unwind library. */
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
/* Do any necessary initialization to access arbitrary stack frames.
On the SPARC, this means flushing the register windows. */
void
expand_builtin_unwind_init ()
{
/* Set this so all the registers get saved in our frame; we need to be
dbxout.c: Fix comment formatting. * dbxout.c: Fix comment formatting. * dependence.c: Likewise. * df.c: Likewise. * diagnostic.c: Likewise. * dominance.c: Likewise. * doprint.c: Likewise. * dwarf2out.c: Likewise. * dwarfout.c: Likewise. * emit-rtl.c: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * flow.c: Likewise. * fold-const.c: Likewise. * function.c: Likewise. From-SVN: r44729
2001-08-08 22:06:48 +00:00
able to copy the saved values for any registers from frames we unwind. */
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
current_function_has_nonlocal_label = 1;
#ifdef SETUP_FRAME_ADDRESSES
SETUP_FRAME_ADDRESSES ();
#endif
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
rtx
expand_builtin_eh_return_data_regno (arglist)
tree arglist;
{
tree which = TREE_VALUE (arglist);
unsigned HOST_WIDE_INT iwhich;
if (TREE_CODE (which) != INTEGER_CST)
{
error ("argument of `__builtin_eh_return_regno' must be constant");
return constm1_rtx;
}
iwhich = tree_low_cst (which, 1);
iwhich = EH_RETURN_DATA_REGNO (iwhich);
if (iwhich == INVALID_REGNUM)
return constm1_rtx;
#ifdef DWARF_FRAME_REGNUM
iwhich = DWARF_FRAME_REGNUM (iwhich);
#else
iwhich = DBX_REGISTER_NUMBER (iwhich);
#endif
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
return GEN_INT (iwhich);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
}
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
/* Given a value extracted from the return address register or stack slot,
return the actual address encoded in that value. */
rtx
expand_builtin_extract_return_addr (addr_tree)
tree addr_tree;
{
rtx addr = expand_expr (addr_tree, NULL_RTX, Pmode, 0);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
except.c (expand_builtin_extract_return_address): Handle case where Pmode != ptr_mode. 2002-09-24 Eric Christopher <echristo@redhat.com> * except.c (expand_builtin_extract_return_address): Handle case where Pmode != ptr_mode. From-SVN: r57552
2002-09-26 21:39:14 +00:00
if (GET_MODE (addr) != Pmode
&& GET_MODE (addr) != VOIDmode)
{
#ifdef POINTERS_EXTEND_UNSIGNED
addr = convert_memory_address (Pmode, addr);
#else
addr = convert_to_mode (Pmode, addr, 0);
#endif
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* First mask out any unwanted bits. */
#ifdef MASK_RETURN_ADDR
re PR c++/4574 (Internal compiler error in `expand_and', at expmed.c:4055) PR c++/4574 * expr.h (expand_and): Add mode argument. * expmed.c (expand_and): Add mode argument. (expand_mult_highpart_adjust, emit_store_flag): Adjust callers. * expr.c (store_field, expand_expr, do_store_flag): Likewise. * except.c (expand_builtin_extract_return_addr): Likewise. * config/alpha/alpha.c (alpha_initialize_trampoline): Likewise. * config/sparc/sparc.c (sparc_initialize_trampoline): Likewise. * config/c4x/c4x.h (INITIALIZE_TRAMPOLINE): Likewise. Use GEN_INT (x) instead of gen_rtx (CONST_INT, VOIDmode, x). * config/c4x/c4x.md: Use GEN_INT (x) instead of gen_rtx (CONST_INT, VOIDmode, x). * gcc.dg/20020220-1.c: New test. From-SVN: r49938
2002-02-21 22:11:08 +01:00
expand_and (Pmode, addr, MASK_RETURN_ADDR, addr);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#endif
/* Then adjust to find the real return address. */
#if defined (RETURN_ADDR_OFFSET)
addr = plus_constant (addr, RETURN_ADDR_OFFSET);
#endif
return addr;
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
}
/* Given an actual address in addr_tree, do any necessary encoding
and return the value to be stored in the return address register or
stack slot so the epilogue will return to that address. */
rtx
expand_builtin_frob_return_addr (addr_tree)
tree addr_tree;
{
builtins.c (expand_builtin_setjmp): Only call convert_memory_address if needed. * builtins.c (expand_builtin_setjmp): Only call convert_memory_address if needed. (expand_builtin_longjmp, expand_builtin_alloca): Likewise. * except.c (expand_builtin_frob_return_addr): Likewise. (expand_builtin_eh_return): Likewise. * stmt.c (expand_computed_goto): Likewise. * explow.c (memory_address): Likewise. (allocate_dynamic_stack_space): Clean up predicate testing. (probe_stack_range): Convert SIZE to Pmode. * calls.c (rtx_for_function_call): Only call convert_memory_address if needed. Pass function call operand as ptr_mode, not Pmode. * expr.c (expand_assignment): Clean up calls to convert_memory address by only doing so when needed and making offsets Pmode. (store_constructor, expand_expr, expand_expr_unaligned): Likewise. * function.c (assign_parms): Ensure address in MEM for RESULT_DECL is in Pmode, not ptr_mode. From-SVN: r46448
2001-10-23 18:59:15 -04:00
rtx addr = expand_expr (addr_tree, NULL_RTX, ptr_mode, 0);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
except.c (expand_builtin_frob_return_addr): Add missing call to convert_memory_address #ifdef POINTERS_EXTEND_UNSIGNED. * except.c (expand_builtin_frob_return_addr): Add missing call to convert_memory_address #ifdef POINTERS_EXTEND_UNSIGNED. (expand_builtin_eh_return): Likewise. (expand_eh_return): Clean up ptr_mode != Pmode cases. From-SVN: r42793
2001-06-02 10:52:11 +00:00
#ifdef POINTERS_EXTEND_UNSIGNED
builtins.c (expand_builtin_setjmp): Only call convert_memory_address if needed. * builtins.c (expand_builtin_setjmp): Only call convert_memory_address if needed. (expand_builtin_longjmp, expand_builtin_alloca): Likewise. * except.c (expand_builtin_frob_return_addr): Likewise. (expand_builtin_eh_return): Likewise. * stmt.c (expand_computed_goto): Likewise. * explow.c (memory_address): Likewise. (allocate_dynamic_stack_space): Clean up predicate testing. (probe_stack_range): Convert SIZE to Pmode. * calls.c (rtx_for_function_call): Only call convert_memory_address if needed. Pass function call operand as ptr_mode, not Pmode. * expr.c (expand_assignment): Clean up calls to convert_memory address by only doing so when needed and making offsets Pmode. (store_constructor, expand_expr, expand_expr_unaligned): Likewise. * function.c (assign_parms): Ensure address in MEM for RESULT_DECL is in Pmode, not ptr_mode. From-SVN: r46448
2001-10-23 18:59:15 -04:00
if (GET_MODE (addr) != Pmode)
addr = convert_memory_address (Pmode, addr);
except.c (expand_builtin_frob_return_addr): Add missing call to convert_memory_address #ifdef POINTERS_EXTEND_UNSIGNED. * except.c (expand_builtin_frob_return_addr): Add missing call to convert_memory_address #ifdef POINTERS_EXTEND_UNSIGNED. (expand_builtin_eh_return): Likewise. (expand_eh_return): Clean up ptr_mode != Pmode cases. From-SVN: r42793
2001-06-02 10:52:11 +00:00
#endif
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
#ifdef RETURN_ADDR_OFFSET
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
addr = force_reg (Pmode, addr);
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
addr = plus_constant (addr, -RETURN_ADDR_OFFSET);
#endif
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
return addr;
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Set up the epilogue with the magic bits we'll need to return to the
exception handler. */
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
expand_builtin_eh_return (stackadj_tree, handler_tree)
except.c (EH_RETURN_STACKADJ_RTX): Do not define. * except.c (EH_RETURN_STACKADJ_RTX): Do not define. (EH_RETURN_HANDLER_RTX): Likewise. (expand_builtin_eh_return): Do not copy stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. (expand_eh_return): Likewise. Also, do not pass stack adjustment as argument to the eh_return pattern. * except.h (MUST_USE_SJLJ_EXCEPTIONS): Do not define just because EH_RETURN_STACKADJ_RTX is not defined. * unwind-dw.c (uw_update_context_1): If EH_RETURN_STACKADJ_RTX is not defined, treat stack pointer like a regular register. (uw_init_context_1): Set up fake initial stack pointer register. (uw_install_context_1): Do not compute stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. * config/i386/i386.md ("eh_return"): Remove first argument. * config/mips/mips.md ("eh_return"): Likewise. * config/rs6000/rs6000.md ("eh_return"): Likewise. * config/sh/sh.md ("eh_return"): Likewise. * config/s390/s390.h (EH_RETURN_STACKADJ_RTX): Remove. From-SVN: r66672
2003-05-10 22:59:04 +00:00
tree stackadj_tree ATTRIBUTE_UNUSED;
tree handler_tree;
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
{
except.c (EH_RETURN_STACKADJ_RTX): Do not define. * except.c (EH_RETURN_STACKADJ_RTX): Do not define. (EH_RETURN_HANDLER_RTX): Likewise. (expand_builtin_eh_return): Do not copy stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. (expand_eh_return): Likewise. Also, do not pass stack adjustment as argument to the eh_return pattern. * except.h (MUST_USE_SJLJ_EXCEPTIONS): Do not define just because EH_RETURN_STACKADJ_RTX is not defined. * unwind-dw.c (uw_update_context_1): If EH_RETURN_STACKADJ_RTX is not defined, treat stack pointer like a regular register. (uw_init_context_1): Set up fake initial stack pointer register. (uw_install_context_1): Do not compute stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. * config/i386/i386.md ("eh_return"): Remove first argument. * config/mips/mips.md ("eh_return"): Likewise. * config/rs6000/rs6000.md ("eh_return"): Likewise. * config/sh/sh.md ("eh_return"): Likewise. * config/s390/s390.h (EH_RETURN_STACKADJ_RTX): Remove. From-SVN: r66672
2003-05-10 22:59:04 +00:00
rtx tmp;
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
except.c (EH_RETURN_STACKADJ_RTX): Do not define. * except.c (EH_RETURN_STACKADJ_RTX): Do not define. (EH_RETURN_HANDLER_RTX): Likewise. (expand_builtin_eh_return): Do not copy stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. (expand_eh_return): Likewise. Also, do not pass stack adjustment as argument to the eh_return pattern. * except.h (MUST_USE_SJLJ_EXCEPTIONS): Do not define just because EH_RETURN_STACKADJ_RTX is not defined. * unwind-dw.c (uw_update_context_1): If EH_RETURN_STACKADJ_RTX is not defined, treat stack pointer like a regular register. (uw_init_context_1): Set up fake initial stack pointer register. (uw_install_context_1): Do not compute stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. * config/i386/i386.md ("eh_return"): Remove first argument. * config/mips/mips.md ("eh_return"): Likewise. * config/rs6000/rs6000.md ("eh_return"): Likewise. * config/sh/sh.md ("eh_return"): Likewise. * config/s390/s390.h (EH_RETURN_STACKADJ_RTX): Remove. From-SVN: r66672
2003-05-10 22:59:04 +00:00
#ifdef EH_RETURN_STACKADJ_RTX
tmp = expand_expr (stackadj_tree, cfun->eh->ehr_stackadj, VOIDmode, 0);
except.c (expand_builtin_frob_return_addr): Add missing call to convert_memory_address #ifdef POINTERS_EXTEND_UNSIGNED. * except.c (expand_builtin_frob_return_addr): Add missing call to convert_memory_address #ifdef POINTERS_EXTEND_UNSIGNED. (expand_builtin_eh_return): Likewise. (expand_eh_return): Clean up ptr_mode != Pmode cases. From-SVN: r42793
2001-06-02 10:52:11 +00:00
#ifdef POINTERS_EXTEND_UNSIGNED
except.c (EH_RETURN_STACKADJ_RTX): Do not define. * except.c (EH_RETURN_STACKADJ_RTX): Do not define. (EH_RETURN_HANDLER_RTX): Likewise. (expand_builtin_eh_return): Do not copy stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. (expand_eh_return): Likewise. Also, do not pass stack adjustment as argument to the eh_return pattern. * except.h (MUST_USE_SJLJ_EXCEPTIONS): Do not define just because EH_RETURN_STACKADJ_RTX is not defined. * unwind-dw.c (uw_update_context_1): If EH_RETURN_STACKADJ_RTX is not defined, treat stack pointer like a regular register. (uw_init_context_1): Set up fake initial stack pointer register. (uw_install_context_1): Do not compute stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. * config/i386/i386.md ("eh_return"): Remove first argument. * config/mips/mips.md ("eh_return"): Likewise. * config/rs6000/rs6000.md ("eh_return"): Likewise. * config/sh/sh.md ("eh_return"): Likewise. * config/s390/s390.h (EH_RETURN_STACKADJ_RTX): Remove. From-SVN: r66672
2003-05-10 22:59:04 +00:00
if (GET_MODE (tmp) != Pmode)
tmp = convert_memory_address (Pmode, tmp);
#endif
if (!cfun->eh->ehr_stackadj)
cfun->eh->ehr_stackadj = copy_to_reg (tmp);
else if (tmp != cfun->eh->ehr_stackadj)
emit_move_insn (cfun->eh->ehr_stackadj, tmp);
except.c (expand_builtin_frob_return_addr): Add missing call to convert_memory_address #ifdef POINTERS_EXTEND_UNSIGNED. * except.c (expand_builtin_frob_return_addr): Add missing call to convert_memory_address #ifdef POINTERS_EXTEND_UNSIGNED. (expand_builtin_eh_return): Likewise. (expand_eh_return): Clean up ptr_mode != Pmode cases. From-SVN: r42793
2001-06-02 10:52:11 +00:00
#endif
except.c (EH_RETURN_STACKADJ_RTX): Do not define. * except.c (EH_RETURN_STACKADJ_RTX): Do not define. (EH_RETURN_HANDLER_RTX): Likewise. (expand_builtin_eh_return): Do not copy stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. (expand_eh_return): Likewise. Also, do not pass stack adjustment as argument to the eh_return pattern. * except.h (MUST_USE_SJLJ_EXCEPTIONS): Do not define just because EH_RETURN_STACKADJ_RTX is not defined. * unwind-dw.c (uw_update_context_1): If EH_RETURN_STACKADJ_RTX is not defined, treat stack pointer like a regular register. (uw_init_context_1): Set up fake initial stack pointer register. (uw_install_context_1): Do not compute stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. * config/i386/i386.md ("eh_return"): Remove first argument. * config/mips/mips.md ("eh_return"): Likewise. * config/rs6000/rs6000.md ("eh_return"): Likewise. * config/sh/sh.md ("eh_return"): Likewise. * config/s390/s390.h (EH_RETURN_STACKADJ_RTX): Remove. From-SVN: r66672
2003-05-10 22:59:04 +00:00
tmp = expand_expr (handler_tree, cfun->eh->ehr_handler, VOIDmode, 0);
#ifdef POINTERS_EXTEND_UNSIGNED
if (GET_MODE (tmp) != Pmode)
tmp = convert_memory_address (Pmode, tmp);
#endif
if (!cfun->eh->ehr_handler)
cfun->eh->ehr_handler = copy_to_reg (tmp);
else if (tmp != cfun->eh->ehr_handler)
emit_move_insn (cfun->eh->ehr_handler, tmp);
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
except.c (EH_RETURN_STACKADJ_RTX): Do not define. * except.c (EH_RETURN_STACKADJ_RTX): Do not define. (EH_RETURN_HANDLER_RTX): Likewise. (expand_builtin_eh_return): Do not copy stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. (expand_eh_return): Likewise. Also, do not pass stack adjustment as argument to the eh_return pattern. * except.h (MUST_USE_SJLJ_EXCEPTIONS): Do not define just because EH_RETURN_STACKADJ_RTX is not defined. * unwind-dw.c (uw_update_context_1): If EH_RETURN_STACKADJ_RTX is not defined, treat stack pointer like a regular register. (uw_init_context_1): Set up fake initial stack pointer register. (uw_install_context_1): Do not compute stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. * config/i386/i386.md ("eh_return"): Remove first argument. * config/mips/mips.md ("eh_return"): Likewise. * config/rs6000/rs6000.md ("eh_return"): Likewise. * config/sh/sh.md ("eh_return"): Likewise. * config/s390/s390.h (EH_RETURN_STACKADJ_RTX): Remove. From-SVN: r66672
2003-05-10 22:59:04 +00:00
if (!cfun->eh->ehr_label)
cfun->eh->ehr_label = gen_label_rtx ();
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_jump (cfun->eh->ehr_label);
[multiple changes] Thu Jun 8 14:16:15 EDT 1998 Andrew MacLeod <amacleod@cygnus.com> * eh-common.h: Remove NEW_EH_MODEL compile time flag, and replace with flag_new_exceptions runtime flag. (struct old_exception_table): New struct which represents what the exception table looks like without the new model. (NEW_EH_RUNTIME): New value used as a tag in the exception table to flag that this is a new style table. * except.h: Remove compile time flag NEW_EH_MODEL. (expand_builtin_eh_stub_old): New prototype. * tree.h (enum built_in_function): Add BUILT_IN_EH_STUB_OLD. * expr.c (expand_builtin): New builtin func BUILT_IN_EH_STUB_OLD. * c-decl.c (init_decl_processing): Add new builtin function __builtin_eh_stub_old. * final.c (final_scan_insn): Replace compile time flag NEW_EH_MODEL. * flags.h (flag_new_exceptions): New runtime flag. * toplev.c (flag_new_exceptions): Initialize default to 0, -fnew-exceptions sets to 1. * except.c (output_exception_table_entry): Output New style exception identifier into table, and replace compile time flag NEW_EH_MODEL with runtime flag flag_new_exceptions. (output_exception_table): Replace compile time flag NEW_EH_MODEL. (expand_builtin_eh_stub_old): Duplicates original functionality of expand_builtin_eh_stub. (expand_builtin_eh_stub): Replace compile time flag NEW_EH_MODEL. * libgcc2.c (find_exception_handler): Remove NEW_EH_MODEL #ifdefs. (old_find_exception_handler): New func, same as find_exception_handler except it works on the old style exception table. (__throw): Replace NEW_EH_MODEL. Detect new model based on presence of identifier in the exception table, and call appropriate routines. 1998-06-08 Andrew MacLeod <amacleod@cygnus.com> * except.c (init_exception_processing): Remove NEW_EH_MODEL compile time flag. Call __cp_eh_info instead of __cp_exception_info. * exception.cc (struct cp_eh_info): Remove NEW_EH_MODEL flag. (__cp_exception_info): Return offset into cp_eh_info structure to match what use to be the start of this structure. (__cp_eh_info): New function to return a pointer to cp_eh_info struct. (__cplus_type_matcher, __cp_push_exception): Remove NEW_EH_MODEL compile time flag. (__uncatch_exception, __check_eh_spec, std::uncaught_exception): Call __cp_eh_info instead of __cp_exception_info. From-SVN: r20336
1998-06-08 12:43:28 +00:00
}
tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill. (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill. (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill. (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New. * c-decl.c (init_decl_processing): Update accordingly. * expr.c (expand_builtin): Likewise. * cp/decl.c (init_decl_processing): Likewise. * rtl.h (global_rtl): Add cfa entry. (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New. (LAST_VIRTUAL_REGISTER): Update. * emit-rtl.c (global_rtl): Add cfa entry. (init_emit): Initialize it. * function.c (cfa_offset): New. (instantiate_virtual_regs): Initialize it. (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx. (expand_function_end): Call expand_eh_return. * tm.texi (ARG_POINTER_CFA_OFFSET): New. * except.c (current_function_eh_stub_label): Kill. (current_function_eh_old_stub_label): Likwise; update all references. (expand_builtin_set_return_addr_reg): Kill. (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill. (expand_builtin_set_eh_regs): Kill. (eh_regs): Produce a third reg for the actual handler address. (eh_return_context, eh_return_stack_adjust): New. (eh_return_handler, eh_return_stub_label): New. (init_eh_for_function): Initialize them. (expand_builtin_eh_return, expand_eh_return): New. * except.h: Update prototypes. * flow.c (find_basic_blocks_1): Update references to the stub label. * function.h (struct function): Kill stub label elements. * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the register number is one that would be in the previous window. Provide a dummy definition for non-windowed targets. (get_reg_addr): New function. (get_reg, put_reg, copy_reg): Use it. (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa. * alpha.c (alpha_eh_epilogue_sp_ofs): New. (alpha_init_expanders): Initialize it. (alpha_expand_epilogue): Use it. * alpha.h: Declare it. * alpha.md (eh_epilogue): New. * m68h.h (ARG_POINTER_CFA_OFFSET): New. * sparc.h (ARG_POINTER_CFA_OFFSET): New. From-SVN: r22436
1998-09-15 12:19:12 -07:00
void
expand_eh_return ()
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
{
except.c (EH_RETURN_STACKADJ_RTX): Do not define. * except.c (EH_RETURN_STACKADJ_RTX): Do not define. (EH_RETURN_HANDLER_RTX): Likewise. (expand_builtin_eh_return): Do not copy stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. (expand_eh_return): Likewise. Also, do not pass stack adjustment as argument to the eh_return pattern. * except.h (MUST_USE_SJLJ_EXCEPTIONS): Do not define just because EH_RETURN_STACKADJ_RTX is not defined. * unwind-dw.c (uw_update_context_1): If EH_RETURN_STACKADJ_RTX is not defined, treat stack pointer like a regular register. (uw_init_context_1): Set up fake initial stack pointer register. (uw_install_context_1): Do not compute stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. * config/i386/i386.md ("eh_return"): Remove first argument. * config/mips/mips.md ("eh_return"): Likewise. * config/rs6000/rs6000.md ("eh_return"): Likewise. * config/sh/sh.md ("eh_return"): Likewise. * config/s390/s390.h (EH_RETURN_STACKADJ_RTX): Remove. From-SVN: r66672
2003-05-10 22:59:04 +00:00
rtx around_label;
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (! cfun->eh->ehr_label)
tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill. (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill. (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill. (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New. * c-decl.c (init_decl_processing): Update accordingly. * expr.c (expand_builtin): Likewise. * cp/decl.c (init_decl_processing): Likewise. * rtl.h (global_rtl): Add cfa entry. (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New. (LAST_VIRTUAL_REGISTER): Update. * emit-rtl.c (global_rtl): Add cfa entry. (init_emit): Initialize it. * function.c (cfa_offset): New. (instantiate_virtual_regs): Initialize it. (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx. (expand_function_end): Call expand_eh_return. * tm.texi (ARG_POINTER_CFA_OFFSET): New. * except.c (current_function_eh_stub_label): Kill. (current_function_eh_old_stub_label): Likwise; update all references. (expand_builtin_set_return_addr_reg): Kill. (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill. (expand_builtin_set_eh_regs): Kill. (eh_regs): Produce a third reg for the actual handler address. (eh_return_context, eh_return_stack_adjust): New. (eh_return_handler, eh_return_stub_label): New. (init_eh_for_function): Initialize them. (expand_builtin_eh_return, expand_eh_return): New. * except.h: Update prototypes. * flow.c (find_basic_blocks_1): Update references to the stub label. * function.h (struct function): Kill stub label elements. * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the register number is one that would be in the previous window. Provide a dummy definition for non-windowed targets. (get_reg_addr): New function. (get_reg, put_reg, copy_reg): Use it. (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa. * alpha.c (alpha_eh_epilogue_sp_ofs): New. (alpha_init_expanders): Initialize it. (alpha_expand_epilogue): Use it. * alpha.h: Declare it. * alpha.md (eh_epilogue): New. * m68h.h (ARG_POINTER_CFA_OFFSET): New. * sparc.h (ARG_POINTER_CFA_OFFSET): New. From-SVN: r22436
1998-09-15 12:19:12 -07:00
return;
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
current_function_calls_eh_return = 1;
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
except.c (EH_RETURN_STACKADJ_RTX): Do not define. * except.c (EH_RETURN_STACKADJ_RTX): Do not define. (EH_RETURN_HANDLER_RTX): Likewise. (expand_builtin_eh_return): Do not copy stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. (expand_eh_return): Likewise. Also, do not pass stack adjustment as argument to the eh_return pattern. * except.h (MUST_USE_SJLJ_EXCEPTIONS): Do not define just because EH_RETURN_STACKADJ_RTX is not defined. * unwind-dw.c (uw_update_context_1): If EH_RETURN_STACKADJ_RTX is not defined, treat stack pointer like a regular register. (uw_init_context_1): Set up fake initial stack pointer register. (uw_install_context_1): Do not compute stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. * config/i386/i386.md ("eh_return"): Remove first argument. * config/mips/mips.md ("eh_return"): Likewise. * config/rs6000/rs6000.md ("eh_return"): Likewise. * config/sh/sh.md ("eh_return"): Likewise. * config/s390/s390.h (EH_RETURN_STACKADJ_RTX): Remove. From-SVN: r66672
2003-05-10 22:59:04 +00:00
#ifdef EH_RETURN_STACKADJ_RTX
emit_move_insn (EH_RETURN_STACKADJ_RTX, const0_rtx);
#endif
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
around_label = gen_label_rtx ();
emit_jump (around_label);
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_label (cfun->eh->ehr_label);
clobber_return_register ();
dwarf2 EH support From-SVN: r15464
1997-09-15 22:07:50 -04:00
except.c (EH_RETURN_STACKADJ_RTX): Do not define. * except.c (EH_RETURN_STACKADJ_RTX): Do not define. (EH_RETURN_HANDLER_RTX): Likewise. (expand_builtin_eh_return): Do not copy stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. (expand_eh_return): Likewise. Also, do not pass stack adjustment as argument to the eh_return pattern. * except.h (MUST_USE_SJLJ_EXCEPTIONS): Do not define just because EH_RETURN_STACKADJ_RTX is not defined. * unwind-dw.c (uw_update_context_1): If EH_RETURN_STACKADJ_RTX is not defined, treat stack pointer like a regular register. (uw_init_context_1): Set up fake initial stack pointer register. (uw_install_context_1): Do not compute stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. * config/i386/i386.md ("eh_return"): Remove first argument. * config/mips/mips.md ("eh_return"): Likewise. * config/rs6000/rs6000.md ("eh_return"): Likewise. * config/sh/sh.md ("eh_return"): Likewise. * config/s390/s390.h (EH_RETURN_STACKADJ_RTX): Remove. From-SVN: r66672
2003-05-10 22:59:04 +00:00
#ifdef EH_RETURN_STACKADJ_RTX
emit_move_insn (EH_RETURN_STACKADJ_RTX, cfun->eh->ehr_stackadj);
#endif
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#ifdef HAVE_eh_return
if (HAVE_eh_return)
except.c (EH_RETURN_STACKADJ_RTX): Do not define. * except.c (EH_RETURN_STACKADJ_RTX): Do not define. (EH_RETURN_HANDLER_RTX): Likewise. (expand_builtin_eh_return): Do not copy stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. (expand_eh_return): Likewise. Also, do not pass stack adjustment as argument to the eh_return pattern. * except.h (MUST_USE_SJLJ_EXCEPTIONS): Do not define just because EH_RETURN_STACKADJ_RTX is not defined. * unwind-dw.c (uw_update_context_1): If EH_RETURN_STACKADJ_RTX is not defined, treat stack pointer like a regular register. (uw_init_context_1): Set up fake initial stack pointer register. (uw_install_context_1): Do not compute stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. * config/i386/i386.md ("eh_return"): Remove first argument. * config/mips/mips.md ("eh_return"): Likewise. * config/rs6000/rs6000.md ("eh_return"): Likewise. * config/sh/sh.md ("eh_return"): Likewise. * config/s390/s390.h (EH_RETURN_STACKADJ_RTX): Remove. From-SVN: r66672
2003-05-10 22:59:04 +00:00
emit_insn (gen_eh_return (cfun->eh->ehr_handler));
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
else
tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill. (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill. (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill. (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New. * c-decl.c (init_decl_processing): Update accordingly. * expr.c (expand_builtin): Likewise. * cp/decl.c (init_decl_processing): Likewise. * rtl.h (global_rtl): Add cfa entry. (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New. (LAST_VIRTUAL_REGISTER): Update. * emit-rtl.c (global_rtl): Add cfa entry. (init_emit): Initialize it. * function.c (cfa_offset): New. (instantiate_virtual_regs): Initialize it. (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx. (expand_function_end): Call expand_eh_return. * tm.texi (ARG_POINTER_CFA_OFFSET): New. * except.c (current_function_eh_stub_label): Kill. (current_function_eh_old_stub_label): Likwise; update all references. (expand_builtin_set_return_addr_reg): Kill. (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill. (expand_builtin_set_eh_regs): Kill. (eh_regs): Produce a third reg for the actual handler address. (eh_return_context, eh_return_stack_adjust): New. (eh_return_handler, eh_return_stub_label): New. (init_eh_for_function): Initialize them. (expand_builtin_eh_return, expand_eh_return): New. * except.h: Update prototypes. * flow.c (find_basic_blocks_1): Update references to the stub label. * function.h (struct function): Kill stub label elements. * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the register number is one that would be in the previous window. Provide a dummy definition for non-windowed targets. (get_reg_addr): New function. (get_reg, put_reg, copy_reg): Use it. (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa. * alpha.c (alpha_eh_epilogue_sp_ofs): New. (alpha_init_expanders): Initialize it. (alpha_expand_epilogue): Use it. * alpha.h: Declare it. * alpha.md (eh_epilogue): New. * m68h.h (ARG_POINTER_CFA_OFFSET): New. * sparc.h (ARG_POINTER_CFA_OFFSET): New. From-SVN: r22436
1998-09-15 12:19:12 -07:00
#endif
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
{
except.c (EH_RETURN_STACKADJ_RTX): Do not define. * except.c (EH_RETURN_STACKADJ_RTX): Do not define. (EH_RETURN_HANDLER_RTX): Likewise. (expand_builtin_eh_return): Do not copy stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. (expand_eh_return): Likewise. Also, do not pass stack adjustment as argument to the eh_return pattern. * except.h (MUST_USE_SJLJ_EXCEPTIONS): Do not define just because EH_RETURN_STACKADJ_RTX is not defined. * unwind-dw.c (uw_update_context_1): If EH_RETURN_STACKADJ_RTX is not defined, treat stack pointer like a regular register. (uw_init_context_1): Set up fake initial stack pointer register. (uw_install_context_1): Do not compute stack adjustment if EH_RETURN_STACKADJ_RTX is not defined. * config/i386/i386.md ("eh_return"): Remove first argument. * config/mips/mips.md ("eh_return"): Likewise. * config/rs6000/rs6000.md ("eh_return"): Likewise. * config/sh/sh.md ("eh_return"): Likewise. * config/s390/s390.h (EH_RETURN_STACKADJ_RTX): Remove. From-SVN: r66672
2003-05-10 22:59:04 +00:00
#ifdef EH_RETURN_HANDLER_RTX
emit_move_insn (EH_RETURN_HANDLER_RTX, cfun->eh->ehr_handler);
#else
error ("__builtin_eh_return not supported on this target");
#endif
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
}
tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill. (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill. (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill. (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New. * c-decl.c (init_decl_processing): Update accordingly. * expr.c (expand_builtin): Likewise. * cp/decl.c (init_decl_processing): Likewise. * rtl.h (global_rtl): Add cfa entry. (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New. (LAST_VIRTUAL_REGISTER): Update. * emit-rtl.c (global_rtl): Add cfa entry. (init_emit): Initialize it. * function.c (cfa_offset): New. (instantiate_virtual_regs): Initialize it. (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx. (expand_function_end): Call expand_eh_return. * tm.texi (ARG_POINTER_CFA_OFFSET): New. * except.c (current_function_eh_stub_label): Kill. (current_function_eh_old_stub_label): Likwise; update all references. (expand_builtin_set_return_addr_reg): Kill. (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill. (expand_builtin_set_eh_regs): Kill. (eh_regs): Produce a third reg for the actual handler address. (eh_return_context, eh_return_stack_adjust): New. (eh_return_handler, eh_return_stub_label): New. (init_eh_for_function): Initialize them. (expand_builtin_eh_return, expand_eh_return): New. * except.h: Update prototypes. * flow.c (find_basic_blocks_1): Update references to the stub label. * function.h (struct function): Kill stub label elements. * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the register number is one that would be in the previous window. Provide a dummy definition for non-windowed targets. (get_reg_addr): New function. (get_reg, put_reg, copy_reg): Use it. (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa. * alpha.c (alpha_eh_epilogue_sp_ofs): New. (alpha_init_expanders): Initialize it. (alpha_expand_epilogue): Use it. * alpha.h: Declare it. * alpha.md (eh_epilogue): New. * m68h.h (ARG_POINTER_CFA_OFFSET): New. * sparc.h (ARG_POINTER_CFA_OFFSET): New. From-SVN: r22436
1998-09-15 12:19:12 -07:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
emit_label (around_label);
tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill. (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill. (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill. (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New. * c-decl.c (init_decl_processing): Update accordingly. * expr.c (expand_builtin): Likewise. * cp/decl.c (init_decl_processing): Likewise. * rtl.h (global_rtl): Add cfa entry. (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New. (LAST_VIRTUAL_REGISTER): Update. * emit-rtl.c (global_rtl): Add cfa entry. (init_emit): Initialize it. * function.c (cfa_offset): New. (instantiate_virtual_regs): Initialize it. (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx. (expand_function_end): Call expand_eh_return. * tm.texi (ARG_POINTER_CFA_OFFSET): New. * except.c (current_function_eh_stub_label): Kill. (current_function_eh_old_stub_label): Likwise; update all references. (expand_builtin_set_return_addr_reg): Kill. (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill. (expand_builtin_set_eh_regs): Kill. (eh_regs): Produce a third reg for the actual handler address. (eh_return_context, eh_return_stack_adjust): New. (eh_return_handler, eh_return_stub_label): New. (init_eh_for_function): Initialize them. (expand_builtin_eh_return, expand_eh_return): New. * except.h: Update prototypes. * flow.c (find_basic_blocks_1): Update references to the stub label. * function.h (struct function): Kill stub label elements. * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the register number is one that would be in the previous window. Provide a dummy definition for non-windowed targets. (get_reg_addr): New function. (get_reg, put_reg, copy_reg): Use it. (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa. * alpha.c (alpha_eh_epilogue_sp_ofs): New. (alpha_init_expanders): Initialize it. (alpha_expand_epilogue): Use it. * alpha.h: Declare it. * alpha.md (eh_epilogue): New. * m68h.h (ARG_POINTER_CFA_OFFSET): New. * sparc.h (ARG_POINTER_CFA_OFFSET): New. From-SVN: r22436
1998-09-15 12:19:12 -07:00
}
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
except.c (collect_one_action_chain): Add an explicit cleanup action if regions surrounding a catch were encoded... * except.c (collect_one_action_chain): Add an explicit cleanup action if regions surrounding a catch were encoded entirely within the call-site entry. * g++.dg/eh/filter1.C, g++.dg/eh/filter2.C: New tests. From-SVN: r44616
2001-08-03 16:15:51 -07:00
/* In the following functions, we represent entries in the action table
ChangeLog.2, [...]: Fix spelling errors. * ChangeLog.2, ChangeLog.3, ChangeLog.4, ChangeLog.5, ChangeLog, cfg.c, cfganal.c, cfgcleanup.c, cfglayout.c, cfgloop.c, cfgrtl.c, collect2.c, combine.c, config.in, configure, configure.in, conflict.c, dwarf2out.c, dwarfout.c, except.c, final.c, flow.c, genattrtab.c, ggc-page.c, jump.c, lcm.c, predict.c, reg-stack.c, reload1.c, rtlanal.c, sched-rgn.c, toplev.c, unwind-dw2-fde.h: Fix spelling errors. From-SVN: r46928
2001-11-11 11:25:28 +00:00
as 1-based indices. Special cases are:
except.c (collect_one_action_chain): Add an explicit cleanup action if regions surrounding a catch were encoded... * except.c (collect_one_action_chain): Add an explicit cleanup action if regions surrounding a catch were encoded entirely within the call-site entry. * g++.dg/eh/filter1.C, g++.dg/eh/filter2.C: New tests. From-SVN: r44616
2001-08-03 16:15:51 -07:00
0: null action record, non-null landing pad; implies cleanups
-1: null action record, null landing pad; implies no action
-2: no call-site entry; implies must_not_throw
-3: we have yet to process outer regions
Further, no special cases apply to the "next" field of the record.
For next, 0 means end of list. */
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct action_record
{
int offset;
int filter;
int next;
};
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static int
action_record_eq (pentry, pdata)
const PTR pentry;
const PTR pdata;
{
const struct action_record *entry = (const struct action_record *) pentry;
const struct action_record *data = (const struct action_record *) pdata;
return entry->filter == data->filter && entry->next == data->next;
}
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static hashval_t
action_record_hash (pentry)
const PTR pentry;
{
const struct action_record *entry = (const struct action_record *) pentry;
return entry->next * 1009 + entry->filter;
}
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static int
add_action_record (ar_hash, filter, next)
htab_t ar_hash;
int filter, next;
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct action_record **slot, *new, tmp;
tmp.filter = filter;
tmp.next = next;
slot = (struct action_record **) htab_find_slot (ar_hash, &tmp, INSERT);
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if ((new = *slot) == NULL)
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
new = (struct action_record *) xmalloc (sizeof (*new));
new->offset = VARRAY_ACTIVE_SIZE (cfun->eh->action_record_data) + 1;
new->filter = filter;
new->next = next;
*slot = new;
/* The filter value goes in untouched. The link to the next
record is a "self-relative" byte offset, or zero to indicate
that there is no next record. So convert the absolute 1 based
ChangeLog.2, [...]: Fix spelling errors. * ChangeLog.2, ChangeLog.3, ChangeLog.4, ChangeLog.5, ChangeLog, cfg.c, cfganal.c, cfgcleanup.c, cfglayout.c, cfgloop.c, cfgrtl.c, collect2.c, combine.c, config.in, configure, configure.in, conflict.c, dwarf2out.c, dwarfout.c, except.c, final.c, flow.c, genattrtab.c, ggc-page.c, jump.c, lcm.c, predict.c, reg-stack.c, reload1.c, rtlanal.c, sched-rgn.c, toplev.c, unwind-dw2-fde.h: Fix spelling errors. From-SVN: r46928
2001-11-11 11:25:28 +00:00
indices we've been carrying around into a displacement. */
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
push_sleb128 (&cfun->eh->action_record_data, filter);
if (next)
next -= VARRAY_ACTIVE_SIZE (cfun->eh->action_record_data) + 1;
push_sleb128 (&cfun->eh->action_record_data, next);
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return new->offset;
}
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static int
collect_one_action_chain (ar_hash, region)
htab_t ar_hash;
struct eh_region *region;
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct eh_region *c;
int next;
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* If we've reached the top of the region chain, then we have
no actions, and require no landing pad. */
if (region == NULL)
return -1;
switch (region->type)
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
case ERT_CLEANUP:
/* A cleanup adds a zero filter to the beginning of the chain, but
there are special cases to look out for. If there are *only*
cleanups along a path, then it compresses to a zero action.
Further, if there are multiple cleanups along a path, we only
need to represent one of them, as that is enough to trigger
entry to the landing pad at runtime. */
next = collect_one_action_chain (ar_hash, region->outer);
if (next <= 0)
return 0;
for (c = region->outer; c ; c = c->outer)
if (c->type == ERT_CLEANUP)
return next;
return add_action_record (ar_hash, 0, next);
case ERT_TRY:
/* Process the associated catch regions in reverse order.
If there's a catch-all handler, then we don't need to
search outer regions. Use a magic -3 value to record
ChangeLog.0, [...]: Fix spelling errors. * ChangeLog.0, ChangeLog.2, ChangeLog.3, ChangeLog.4, ChangeLog, FSFChangeLog.10, c-decl.c, cppfiles.c, cppinit.c, cpplex.c, cpplib.c, cppmain.c, cse.c, df.c, diagnostic.c, dominance.c, dwarf2out.c, dwarfout.c, emit-rtl.c, errors.c, except.c, except.h, explow.c, function.c, gcse.c, genrecog.c, predict.c, regmove.c, sched-rgn.c, ssa-ccp.c, stmt.c, toplev.c: Fix spelling errors. From-SVN: r47279
2001-11-23 02:05:19 +00:00
that we haven't done the outer search. */
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
next = -3;
for (c = region->u.try.last_catch; c ; c = c->u.catch.prev_catch)
{
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
if (c->u.catch.type_list == NULL)
{
/* Retrieve the filter from the head of the filter list
where we have stored it (see assign_filter_values). */
except.c: Revert 04-01 and 04-02 forced-unwind changes. gcc/ * except.c: Revert 04-01 and 04-02 forced-unwind changes. * flags.h, toplev.c, doc/invoke.texi: Likewise. * unwind-dw2.c (_Unwind_GetCFA): Fix ptr->int conversion warning. * unwind.inc (_Unwind_DeleteException): Check for null exception_cleanup. * unwind-sjlj.c (_Unwind_SjLj_Resume_or_Rethrow): New. * unwind.inc (_Unwind_Resume_or_Rethrow): New. * unwind.h: Declare them. * libgcc-std.ver (GCC_3.3): Export them. gcc/cp/ * cfns.gperf: Comment out POSIX thread cancellation points, plus abort and raise. * cfns.h: Regenerate. gcc/testsuite/ * g++.dg/eh/forced1.C: Expect catch-all handlers to run. Verify exception_cleanup not called for rethrows. * g++.dg/eh/forced2.C: Test that exception_cleanup is called when exiting catch block without rethrowing. * g++.dg/eh/forced3.C: New. * g++.dg/eh/forced4.C: New. libstdc++-v3/ * libsupc++/eh_catch.cc (__cxa_begin_catch): Handle foreign exceptions. (__cxa_end_catch): Likewise. * libsupc++/eh_throw.cc (__cxa_rethrow): Likewise. Use _Unwind_Resume_or_Rethrow. * libsupc++/eh_personality.cc (empty_exception_spec): New. (PERSONALITY_FUNCTION): Don't ignore terminate or catch-all for _UA_FORCE_UNWIND. Honor empty filter spec for foreign exceptions. Don't push terminate/unexpected to cxa functions. (__cxa_call_unexpected): Remove foreign exception fixmes. From-SVN: r66583
2003-05-07 15:11:38 -07:00
int filter
= TREE_INT_CST_LOW (TREE_VALUE (c->u.catch.filter_list));
next = add_action_record (ar_hash, filter, 0);
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
else
{
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
/* Once the outer search is done, trigger an action record for
each filter we have. */
tree flt_node;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (next == -3)
{
next = collect_one_action_chain (ar_hash, region->outer);
except.c (collect_one_action_chain): Add an explicit cleanup action if regions surrounding a catch were encoded... * except.c (collect_one_action_chain): Add an explicit cleanup action if regions surrounding a catch were encoded entirely within the call-site entry. * g++.dg/eh/filter1.C, g++.dg/eh/filter2.C: New tests. From-SVN: r44616
2001-08-03 16:15:51 -07:00
/* If there is no next action, terminate the chain. */
if (next == -1)
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
next = 0;
except.c (collect_one_action_chain): Add an explicit cleanup action if regions surrounding a catch were encoded... * except.c (collect_one_action_chain): Add an explicit cleanup action if regions surrounding a catch were encoded entirely within the call-site entry. * g++.dg/eh/filter1.C, g++.dg/eh/filter2.C: New tests. From-SVN: r44616
2001-08-03 16:15:51 -07:00
/* If all outer actions are cleanups or must_not_throw,
we'll have no action record for it, since we had wanted
to encode these states in the call-site record directly.
Add a cleanup action to the chain to catch these. */
else if (next <= 0)
next = add_action_record (ar_hash, 0, 0);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
}
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
except.c: Support for catching a list of types with a single handler (struct eh_region):... * except.c: Support for catching a list of types with a single handler (struct eh_region): Change type and filter to lists for catch regions. (mark_eh_region): Mark the filter list for GC also. (expand_start_catch): Always build a list if argument not NULL and register each type of the list through add_type_for_runtime. (duplicate_eh_region_1): Change type into type_list for catch regions. (assign_filter_values): Assign a filter to each type associated with a catch region. Assign filter for NULL types in a unique entry in the filter list. (build_post_landing_pads): Emit compare and jump for each filter of the list associated with a catch region. (reachable_next_level): When the type thrown is known, stop the search as soon as one type within a catch list matches. Also, a handler is potentially reachable only if at least one of the types it catches has not been previously caught. (collect_one_action_chain): Retrieve the filter for a NULL type list from the first filter list entry. For non NULL type lists, add an action record for every filter assigned. * except.h: Reflect changes in comment before expand_start_catch. From-SVN: r47087
2001-11-16 13:48:18 +01:00
flt_node = c->u.catch.filter_list;
for (; flt_node; flt_node = TREE_CHAIN (flt_node))
{
int filter = TREE_INT_CST_LOW (TREE_VALUE (flt_node));
next = add_action_record (ar_hash, filter, next);
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
}
}
return next;
case ERT_ALLOWED_EXCEPTIONS:
/* An exception specification adds its filter to the
beginning of the chain. */
next = collect_one_action_chain (ar_hash, region->outer);
return add_action_record (ar_hash, region->u.allowed.filter,
next < 0 ? 0 : next);
case ERT_MUST_NOT_THROW:
/* A must-not-throw region with no inner handlers or cleanups
requires no call-site entry. Note that this differs from
the no handler or cleanup case in that we do require an lsda
to be generated. Return a magic -2 value to record this. */
return -2;
case ERT_CATCH:
case ERT_THROW:
/* CATCH regions are handled in TRY above. THROW regions are
for optimization information only and produce no output. */
return collect_one_action_chain (ar_hash, region->outer);
default:
abort ();
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
}
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static int
add_call_site (landing_pad, action)
rtx landing_pad;
int action;
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct call_site_record *data = cfun->eh->call_site_data;
int used = cfun->eh->call_site_data_used;
int size = cfun->eh->call_site_data_size;
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (used >= size)
{
size = (size ? size * 2 : 64);
data = (struct call_site_record *)
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
ggc_realloc (data, sizeof (*data) * size);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
cfun->eh->call_site_data = data;
cfun->eh->call_site_data_size = size;
}
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
data[used].landing_pad = landing_pad;
data[used].action = action;
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
cfun->eh->call_site_data_used = used + 1;
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return used + call_site_base;
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Turn REG_EH_REGION notes back into NOTE_INSN_EH_REGION notes.
The new note numbers will not refer to region numbers, but
instead to call site entries. */
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
convert_to_eh_region_ranges ()
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
rtx insn, iter, note;
htab_t ar_hash;
int last_action = -3;
rtx last_action_insn = NULL_RTX;
rtx last_landing_pad = NULL_RTX;
rtx first_no_action_insn = NULL_RTX;
regmove.c (replace_in_call_usage): Fix warnings. 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * regmove.c (replace_in_call_usage): Fix warnings. * sched-deps.c (add_dependence): Fix warnings. * simplify-rtx.c (simplify_subreg): Likewise. Return NULL_RTX instead of NULL. * reg-stack.c (emit_swap_insn): Eliminate warnings. (subst_asm_stack_regs): Likewise. * combine.c (num_sign_bit_copies): Cast bitwidth to int to avoid warnings. * dwarf2out.c (output_call_frame_info): Declare i as int. (build_abbrev_table): Declare n_alloc as int. (dwarf2out_finish): Initialize die. * except.c: Declare sjlj_funcdef_number as unsigned. (connect_post_landing_pads): Declare j as unsigned. (convert_to_eh_region_ranges): Initialize call_site. (output_function_exception_table): Initialize tt_format_size. * expr.c (move_by_pieces_1): Initialize to1. (store_constructor): Initialize minelt and maxelt. * flow.c (mark_regs_live_at_end): Declare i as unsigned. * function.c (instantiate_decls): Avoid signed/unsigned warning. * c-decl.c (combine_parm_decls): Unused, remove. * c-tree.h: Remove prototype for combine_parm_decls. * reload.c (push_reload): Fix warning. (regno_clobbered_p): Likewise. * reload1.c (replace_pseudos_in_call_usage): Likewise. (reload_combine): Likewise. * bitmap.c: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.h: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.c (bitmap_operation): Change user. * bitmap.h (EXECUTE_IF_AND_COMPL_IN_BITMAP): Likewise. For cp/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * call.c (build_op_delete_call): Initialize fn. (convert_like_real): Delete conditional. (joust): Initialize *w and *l. * class.c: Add prototype for binfo_ctor_vtable. (get_primary_binfo): Initialize result. * init.c (build_java_class_ref): Initialize name. * typeck.c (unary_complex_lvalue): Do not duplicate the argument to modify, pre-, or post-increment when used as an lvalue and when the argument has side-effects. For ch/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * ch-tree.h: Remove prototype for combine_parm_decls, unused function. From-SVN: r43893
2001-07-10 12:38:10 +02:00
int call_site = 0;
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (USING_SJLJ_EXCEPTIONS || cfun->eh->region_tree == NULL)
return;
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
VARRAY_UCHAR_INIT (cfun->eh->action_record_data, 64, "action_record_data");
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
ar_hash = htab_create (31, action_record_hash, action_record_eq, free);
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (iter = get_insns (); iter ; iter = NEXT_INSN (iter))
if (INSN_P (iter))
{
struct eh_region *region;
int this_action;
rtx this_landing_pad;
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
insn = iter;
if (GET_CODE (insn) == INSN
&& GET_CODE (PATTERN (insn)) == SEQUENCE)
insn = XVECEXP (PATTERN (insn), 0, 0);
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
note = find_reg_note (insn, REG_EH_REGION, NULL_RTX);
if (!note)
{
if (! (GET_CODE (insn) == CALL_INSN
|| (flag_non_call_exceptions
&& may_trap_p (PATTERN (insn)))))
continue;
this_action = -1;
region = NULL;
}
else
{
if (INTVAL (XEXP (note, 0)) <= 0)
continue;
region = cfun->eh->region_array[INTVAL (XEXP (note, 0))];
this_action = collect_one_action_chain (ar_hash, region);
}
/* Existence of catch handlers, or must-not-throw regions
implies that an lsda is needed (even if empty). */
if (this_action != -1)
cfun->uses_eh_lsda = 1;
/* Delay creation of region notes for no-action regions
until we're sure that an lsda will be required. */
else if (last_action == -3)
{
first_no_action_insn = iter;
last_action = -1;
}
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Cleanups and handlers may share action chains but not
landing pads. Collect the landing pad for this region. */
if (this_action >= 0)
{
struct eh_region *o;
for (o = region; ! o->landing_pad ; o = o->outer)
continue;
this_landing_pad = o->landing_pad;
}
else
this_landing_pad = NULL_RTX;
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Differing actions or landing pads implies a change in call-site
info, which implies some EH_REGION note should be emitted. */
if (last_action != this_action
|| last_landing_pad != this_landing_pad)
{
/* If we'd not seen a previous action (-3) or the previous
action was must-not-throw (-2), then we do not need an
end note. */
if (last_action >= -1)
{
/* If we delayed the creation of the begin, do it now. */
if (first_no_action_insn)
{
call_site = add_call_site (NULL_RTX, 0);
note = emit_note_before (NOTE_INSN_EH_REGION_BEG,
first_no_action_insn);
NOTE_EH_HANDLER (note) = call_site;
first_no_action_insn = NULL_RTX;
}
note = emit_note_after (NOTE_INSN_EH_REGION_END,
last_action_insn);
NOTE_EH_HANDLER (note) = call_site;
}
/* If the new action is must-not-throw, then no region notes
are created. */
if (this_action >= -1)
{
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
call_site = add_call_site (this_landing_pad,
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
this_action < 0 ? 0 : this_action);
note = emit_note_before (NOTE_INSN_EH_REGION_BEG, iter);
NOTE_EH_HANDLER (note) = call_site;
}
last_action = this_action;
last_landing_pad = this_landing_pad;
}
last_action_insn = iter;
}
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (last_action >= -1 && ! first_no_action_insn)
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
note = emit_note_after (NOTE_INSN_EH_REGION_END, last_action_insn);
NOTE_EH_HANDLER (note) = call_site;
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
htab_delete (ar_hash);
}
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static void
push_uleb128 (data_area, value)
varray_type *data_area;
unsigned int value;
{
do
{
unsigned char byte = value & 0x7f;
value >>= 7;
if (value)
byte |= 0x80;
VARRAY_PUSH_UCHAR (*data_area, byte);
}
while (value);
}
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
static void
push_sleb128 (data_area, value)
varray_type *data_area;
int value;
{
unsigned char byte;
int more;
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
do
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
byte = value & 0x7f;
value >>= 7;
more = ! ((value == 0 && (byte & 0x40) == 0)
|| (value == -1 && (byte & 0x40) != 0));
if (more)
byte |= 0x80;
VARRAY_PUSH_UCHAR (*data_area, byte);
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
while (more);
}
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#ifndef HAVE_AS_LEB128
static int
dw2_size_of_call_site_table ()
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
int n = cfun->eh->call_site_data_used;
int size = n * (4 + 4 + 4);
int i;
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (i = 0; i < n; ++i)
{
struct call_site_record *cs = &cfun->eh->call_site_data[i];
size += size_of_uleb128 (cs->action);
}
except.c (nothrow_function_p): If -fno-exceptions, just return. * except.c (nothrow_function_p): If -fno-exceptions, just return. (init_eh_nesting_info): Likewise. From-SVN: r32454
2000-03-09 20:37:06 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return size;
}
static int
sjlj_size_of_call_site_table ()
{
int n = cfun->eh->call_site_data_used;
int size = 0;
int i;
except.c (insn_eh_region, [...]): New static variables. * except.c (insn_eh_region, maximum_uid): New static variables. (set_insn_eh_region): New static function to set region numbers. (free_insn_eh_region): New function to free EH region table. (init_insn_eh_region): New function to initialize EH region table. (in_same_eh_region): New function used to determine if two rtl instructions are in the same exception region or not. From-SVN: r18624
1998-03-16 12:51:39 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (i = 0; i < n; ++i)
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct call_site_record *cs = &cfun->eh->call_site_data[i];
size += size_of_uleb128 (INTVAL (cs->landing_pad));
size += size_of_uleb128 (cs->action);
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
return size;
}
#endif
static void
dw2_output_call_site_table ()
{
c-parse.in (yyerror): Const-ification and/or static-ization. * c-parse.in (yyerror): Const-ification and/or static-ization. * c-typeck.c (push_member_name): Likewise. * collect2.c (main): Likewise. * dbxout.c (dbxout_parms): Likewise. * diagnostic.c (format_with_decl): Likewise. * dwarf2out.c (output_ranges): Likewise. * dwarfout.c (fundamental_type_code): Likewise. * except.c (dw2_output_call_site_table): Likewise. * gcc.c (do_spec_1): Likewise. * genopinit.c (optabs): Likewise. * objc/objc-act.c (synth_id_with_class_suffix, start_class, gen_declaration_1, handle_impent): Likewise. * protoize.c (default_include, in_system_include_dir, abspath): Likewise. * sched-vis.c (visualize_stall_cycles): Likewise. * sdbout.c (plain_type_1, sdbout_end_function, sdbout_end_epilogue): Likewise. * varasm.c (decode_reg_name): Likewise. * 1750a.c (mod_regno_adjust): Likewise. * alpha.c (alpha_write_one_linkage, unicosmk_output_default_externs): Likewise. * arm.c (arm_condition_codes): Likewise. * arm.h (arm_condition_codes): Likewise. * avr.c (output_movsisf, encode_section_info): Likewise. * darwin.h (GEN_BINDER_NAME_FOR_STUB, GEN_SYMBOL_NAME_FOR_SYMBOL): Likewise. * i386.c (hi_reg_name, qi_reg_name, qi_high_reg_name): Likewise. * i386.h (hi_reg_name, qi_reg_name, qi_high_reg_name): Likewise. * m88k.c (output_function_profiler): Likewise. * mips.c (mips_output_conditional_branch): Likewise. * ns32k.c (ns32k_out_reg_names): Likewise. * ns32k.h (ns32k_out_reg_names): Likewise. * pj.c (pj_output_rval): Likewise. * rs6000.c (GEN_LOCAL_LABEL_FOR_SYMBOL): Likewise. * sparc.c (sparc_flat_function_prologue, sparc_flat_function_epilogue): Likewise. cp: * decl.c (warn_extern_redeclared_static, cp_make_fname_decl): Const-ification. * pt.c (tsubst_decl): Likewise. f: * bad.c (ffebad_finish): Const-ification and/or static-ization. * intrin.c (ffeintrin_cmp_name_): Likewise. * stc.c (ffestc_R904): Likewise. java: * expr.c (expand_invoke): Const-ification. * parse.y (patch_method_invocation): Likewise. From-SVN: r45581
2001-09-13 14:37:29 +00:00
const char *const function_start_lab
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
= IDENTIFIER_POINTER (current_function_func_begin_label);
int n = cfun->eh->call_site_data_used;
int i;
for (i = 0; i < n; ++i)
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct call_site_record *cs = &cfun->eh->call_site_data[i];
char reg_start_lab[32];
char reg_end_lab[32];
char landing_pad_lab[32];
ASM_GENERATE_INTERNAL_LABEL (reg_start_lab, "LEHB", call_site_base + i);
ASM_GENERATE_INTERNAL_LABEL (reg_end_lab, "LEHE", call_site_base + i);
if (cs->landing_pad)
ASM_GENERATE_INTERNAL_LABEL (landing_pad_lab, "L",
CODE_LABEL_NUMBER (cs->landing_pad));
/* ??? Perhaps use insn length scaling if the assembler supports
generic arithmetic. */
/* ??? Perhaps use attr_length to choose data1 or data2 instead of
data4 if the function is small enough. */
#ifdef HAVE_AS_LEB128
dw2_asm_output_delta_uleb128 (reg_start_lab, function_start_lab,
"region %d start", i);
dw2_asm_output_delta_uleb128 (reg_end_lab, reg_start_lab,
"length");
if (cs->landing_pad)
dw2_asm_output_delta_uleb128 (landing_pad_lab, function_start_lab,
"landing pad");
else
dw2_asm_output_data_uleb128 (0, "landing pad");
#else
dw2_asm_output_delta (4, reg_start_lab, function_start_lab,
"region %d start", i);
dw2_asm_output_delta (4, reg_end_lab, reg_start_lab, "length");
if (cs->landing_pad)
dw2_asm_output_delta (4, landing_pad_lab, function_start_lab,
"landing pad");
else
dw2_asm_output_data (4, 0, "landing pad");
#endif
dw2_asm_output_data_uleb128 (cs->action, "action");
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
call_site_base += n;
}
static void
sjlj_output_call_site_table ()
{
int n = cfun->eh->call_site_data_used;
int i;
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
for (i = 0; i < n; ++i)
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
struct call_site_record *cs = &cfun->eh->call_site_data[i];
cse.c (delete_trivially_dead_insns): Replace alloca with xmalloc/xcalloc. * cse.c (delete_trivially_dead_insns): Replace alloca with xmalloc/xcalloc. * except.c (update_rethrow_references): Likewise. (init_eh_nesting_info): Likewise. * function.c (identify_blocks): Likewise. * gcse.c (dump_hash_table): Likewise. * graph.c (print_rtl_graph_with_bb): Likewise. * loop.c (combine_movables): Likewise. (move_movables): Likewise. (count_loop_regs_set): Likewise. (strength_reduce): Likewise. * profile.c (compute_branch_probabilities): New function, split out from ... (branch_prob): Here. Replace alloca with xmalloc/xcalloc. * regclass.c (regclass): Likewise. * regmove.c (regmove_optimize): Likewise. * toplev.c (compile_file): Likewise. (main): Don't mess with the stack rlimit. From-SVN: r30445
1999-11-08 04:56:18 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
dw2_asm_output_data_uleb128 (INTVAL (cs->landing_pad),
"region %d landing pad", i);
dw2_asm_output_data_uleb128 (cs->action, "action");
}
cse.c (delete_trivially_dead_insns): Replace alloca with xmalloc/xcalloc. * cse.c (delete_trivially_dead_insns): Replace alloca with xmalloc/xcalloc. * except.c (update_rethrow_references): Likewise. (init_eh_nesting_info): Likewise. * function.c (identify_blocks): Likewise. * gcse.c (dump_hash_table): Likewise. * graph.c (print_rtl_graph_with_bb): Likewise. * loop.c (combine_movables): Likewise. (move_movables): Likewise. (count_loop_regs_set): Likewise. (strength_reduce): Likewise. * profile.c (compute_branch_probabilities): New function, split out from ... (branch_prob): Here. Replace alloca with xmalloc/xcalloc. * regclass.c (regclass): Likewise. * regmove.c (regmove_optimize): Likewise. * toplev.c (compile_file): Likewise. (main): Don't mess with the stack rlimit. From-SVN: r30445
1999-11-08 04:56:18 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
call_site_base += n;
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
}
varasm.c (default_exception_section): Move to... * varasm.c (default_exception_section): Move to... * except.c (default_exception_section): ... here. Make .gcc_except_table read-only if it is not expected to have any dynamic relocations and linker handles it. * dwarf2out.c (default_eh_frame_section): Make .eh_frame read-only if it is not expected to have any dynamic relocations and linker handles it. * configure.in (HAVE_LD_RO_RW_SECTION_MIXING): Check what ld does when linking read-only and read-write sections together. * configure, config.in: Rebuilt. * crtstuff.c (EH_FRAME_SECTION_CONST): Define. (__EH_FRAME_BEGIN__, __FRAME_END__): Add it. From-SVN: r59507
2002-11-26 13:34:25 +01:00
/* Tell assembler to switch to the section for the exception handling
table. */
void
default_exception_section ()
{
if (targetm.have_named_sections)
{
int flags;
#ifdef HAVE_LD_RO_RW_SECTION_MIXING
except.c (default_exception_section): Move variable into the scope where it is used. * except.c (default_exception_section): Move variable into the scope where it is used. From-SVN: r59593
2002-11-28 02:10:46 +00:00
int tt_format = ASM_PREFERRED_EH_DATA_FORMAT (/*code=*/0, /*global=*/1);
varasm.c (default_exception_section): Move to... * varasm.c (default_exception_section): Move to... * except.c (default_exception_section): ... here. Make .gcc_except_table read-only if it is not expected to have any dynamic relocations and linker handles it. * dwarf2out.c (default_eh_frame_section): Make .eh_frame read-only if it is not expected to have any dynamic relocations and linker handles it. * configure.in (HAVE_LD_RO_RW_SECTION_MIXING): Check what ld does when linking read-only and read-write sections together. * configure, config.in: Rebuilt. * crtstuff.c (EH_FRAME_SECTION_CONST): Define. (__EH_FRAME_BEGIN__, __FRAME_END__): Add it. From-SVN: r59507
2002-11-26 13:34:25 +01:00
flags = (! flag_pic
|| ((tt_format & 0x70) != DW_EH_PE_absptr
&& (tt_format & 0x70) != DW_EH_PE_aligned))
? 0 : SECTION_WRITE;
#else
flags = SECTION_WRITE;
#endif
named_section_flags (".gcc_except_table", flags);
}
else if (flag_pic)
data_section ();
else
readonly_data_section ();
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
void
output_function_exception_table ()
{
defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * dwarf2asm.c (dw2_force_const_mem, dw2_output_indirect_constant_1, dw2_output_indirect_constants, dw2_asm_output_encoded_addr_rtx): New. * dwarf2asm.h (dw2_asm_output_encoded_addr_rtx): Prototype. (dw2_output_indirect_constants): Prototype. * dwarf2out.c (dwarf2out_begin_prologue): Generate current_function_func_begin_label if we'll need it for EH. Exit early for IA64_UNWIND_INFO. * except.c: Get DW_EH_PE_* defines from dwarf2.h. (eh_data_format_name): Update for indirect references. (output_function_exception_table): Care for IA64_UNWIND_INFO. Handle ASM_PREFERRED_EH_DATA_FORMAT. * except.h (MUST_USE_SJLJ_EXCEPTIONS): IA64_UNWIND_INFO needn't define HAVE_eh_return etc. * final.c (final_start_function): Always call dwarf2out_begin_prologue. (final_end_function): Don't call output_function_exception_table. * toplev.c (compile_file): Call dw2_output_indirect_constants. (rest_of_compilation): Invoke output_function_exception_table for ia64 before assemble_end_function. * tm.texi (ASM_PREFERRED_EH_DATA_FORMAT): Document. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Document. * unwind-dw2.c (_Unwind_GetTextRelBase, _Unwind_GetDataRelBase): New. * unwind.h: Declare them. * libgcc-std.ver: Export them. * unwind-pe.h: New file. * config/alpha/elf.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * config/ia64/fde-glibc.c: Use "struct unw_table_entry" instead of "fde". (find_fde_for_dso): Extract DT_PLTGOT. (_Unwind_FindTableEntry): Rename from __ia64_find_fde; return the segment and gp as well. * config/ia64/frame-ia64.c: Remove file. * config/ia64/frame-ia64.h: Remove file. * config/ia64/unwind-ia64.c: New file. * config/ia64/unwind-ia64.h: New file. * config/ia64/ia64.h (ASM_OUTPUT_EH_CHAR): Remove. (ASM_OUTPUT_EH_SHORT, ASM_OUTPUT_EH_INT): Remove. (ASM_OUTPUT_EH_DOUBLE_INT): Remove. (ASM_PREFERRED_EH_DATA_FORMAT): New. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New. (IA64_UNWIND_INFO): Re-enable. (HANDLER_SECTION): Remove. (EH_RETURN_DATA_REGNO): New. * config/ia64/ia64.md (exception_receiver): Remove. * config/ia64/t-glibc (LIB2ADDEH): Re-enable. * config/ia64/t-ia64 (LIB2ADDEH): Re-enable. From-SVN: r41981
2001-05-11 23:03:20 -07:00
int tt_format, cs_format, lp_format, i, n;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#ifdef HAVE_AS_LEB128
char ttype_label[32];
char cs_after_size_label[32];
char cs_end_label[32];
#else
int call_site_len;
#endif
int have_tt_data;
regmove.c (replace_in_call_usage): Fix warnings. 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * regmove.c (replace_in_call_usage): Fix warnings. * sched-deps.c (add_dependence): Fix warnings. * simplify-rtx.c (simplify_subreg): Likewise. Return NULL_RTX instead of NULL. * reg-stack.c (emit_swap_insn): Eliminate warnings. (subst_asm_stack_regs): Likewise. * combine.c (num_sign_bit_copies): Cast bitwidth to int to avoid warnings. * dwarf2out.c (output_call_frame_info): Declare i as int. (build_abbrev_table): Declare n_alloc as int. (dwarf2out_finish): Initialize die. * except.c: Declare sjlj_funcdef_number as unsigned. (connect_post_landing_pads): Declare j as unsigned. (convert_to_eh_region_ranges): Initialize call_site. (output_function_exception_table): Initialize tt_format_size. * expr.c (move_by_pieces_1): Initialize to1. (store_constructor): Initialize minelt and maxelt. * flow.c (mark_regs_live_at_end): Declare i as unsigned. * function.c (instantiate_decls): Avoid signed/unsigned warning. * c-decl.c (combine_parm_decls): Unused, remove. * c-tree.h: Remove prototype for combine_parm_decls. * reload.c (push_reload): Fix warning. (regno_clobbered_p): Likewise. * reload1.c (replace_pseudos_in_call_usage): Likewise. (reload_combine): Likewise. * bitmap.c: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.h: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.c (bitmap_operation): Change user. * bitmap.h (EXECUTE_IF_AND_COMPL_IN_BITMAP): Likewise. For cp/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * call.c (build_op_delete_call): Initialize fn. (convert_like_real): Delete conditional. (joust): Initialize *w and *l. * class.c: Add prototype for binfo_ctor_vtable. (get_primary_binfo): Initialize result. * init.c (build_java_class_ref): Initialize name. * typeck.c (unary_complex_lvalue): Do not duplicate the argument to modify, pre-, or post-increment when used as an lvalue and when the argument has side-effects. For ch/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * ch-tree.h: Remove prototype for combine_parm_decls, unused function. From-SVN: r43893
2001-07-10 12:38:10 +02:00
int tt_format_size = 0;
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Not all functions need anything. */
if (! cfun->uses_eh_lsda)
return;
except.c (nothrow_function_p): If -fno-exceptions, just return. * except.c (nothrow_function_p): If -fno-exceptions, just return. (init_eh_nesting_info): Likewise. From-SVN: r32454
2000-03-09 20:37:06 +00:00
defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * dwarf2asm.c (dw2_force_const_mem, dw2_output_indirect_constant_1, dw2_output_indirect_constants, dw2_asm_output_encoded_addr_rtx): New. * dwarf2asm.h (dw2_asm_output_encoded_addr_rtx): Prototype. (dw2_output_indirect_constants): Prototype. * dwarf2out.c (dwarf2out_begin_prologue): Generate current_function_func_begin_label if we'll need it for EH. Exit early for IA64_UNWIND_INFO. * except.c: Get DW_EH_PE_* defines from dwarf2.h. (eh_data_format_name): Update for indirect references. (output_function_exception_table): Care for IA64_UNWIND_INFO. Handle ASM_PREFERRED_EH_DATA_FORMAT. * except.h (MUST_USE_SJLJ_EXCEPTIONS): IA64_UNWIND_INFO needn't define HAVE_eh_return etc. * final.c (final_start_function): Always call dwarf2out_begin_prologue. (final_end_function): Don't call output_function_exception_table. * toplev.c (compile_file): Call dw2_output_indirect_constants. (rest_of_compilation): Invoke output_function_exception_table for ia64 before assemble_end_function. * tm.texi (ASM_PREFERRED_EH_DATA_FORMAT): Document. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Document. * unwind-dw2.c (_Unwind_GetTextRelBase, _Unwind_GetDataRelBase): New. * unwind.h: Declare them. * libgcc-std.ver: Export them. * unwind-pe.h: New file. * config/alpha/elf.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * config/ia64/fde-glibc.c: Use "struct unw_table_entry" instead of "fde". (find_fde_for_dso): Extract DT_PLTGOT. (_Unwind_FindTableEntry): Rename from __ia64_find_fde; return the segment and gp as well. * config/ia64/frame-ia64.c: Remove file. * config/ia64/frame-ia64.h: Remove file. * config/ia64/unwind-ia64.c: New file. * config/ia64/unwind-ia64.h: New file. * config/ia64/ia64.h (ASM_OUTPUT_EH_CHAR): Remove. (ASM_OUTPUT_EH_SHORT, ASM_OUTPUT_EH_INT): Remove. (ASM_OUTPUT_EH_DOUBLE_INT): Remove. (ASM_PREFERRED_EH_DATA_FORMAT): New. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New. (IA64_UNWIND_INFO): Re-enable. (HANDLER_SECTION): Remove. (EH_RETURN_DATA_REGNO): New. * config/ia64/ia64.md (exception_receiver): Remove. * config/ia64/t-glibc (LIB2ADDEH): Re-enable. * config/ia64/t-ia64 (LIB2ADDEH): Re-enable. From-SVN: r41981
2001-05-11 23:03:20 -07:00
#ifdef IA64_UNWIND_INFO
fputs ("\t.personality\t", asm_out_file);
output_addr_const (asm_out_file, eh_personality_libfunc);
fputs ("\n\t.handlerdata\n", asm_out_file);
/* Note that varasm still thinks we're in the function's code section.
The ".endp" directive that will immediately follow will take us back. */
#else
target.h (struct gcc_target): Add asm_out.exception_section, asm_out.eh_frame_section. * target.h (struct gcc_target): Add asm_out.exception_section, asm_out.eh_frame_section. * target-def.h (TARGET_ASM_EXCEPTION_SECTION): New macro. (TARGET_ASM_EH_FRAME_SECTION): New. (TARGET_INITIALIZER): Update. * output.h (default_exception_section): Declare. (default_eh_frame_section): Declare. * dwarf2out.c: Include target.h. (output_call_frame_info): Call target hook for eh frames. (default_eh_frame_section): New function. * except.c: Include target.h. (output_function_exception_table): Call target hook for exception section. * varasm.c (default_exception_section): Rename from exception_section, remove EXCEPTION_SECTION macro. * config/darwin.h (darwin_eh_frame_section): New function. (EXCEPTION_SECTION): Remove. (TARGET_ASM_EXCEPTION_SECTION): Define. * config/nextstep.h (EH_FRAME_SECTION_ASM_OP): Remove. (nextstep_exception_section): New function. (nextstep_eh_frame_section): New function. (TARGET_ASM_EXCEPTION_SECTION): Define. (TARGET_ASM_EH_FRAME_SECTION): Define. * config/pa/som.h (EXCEPTION_SECTION): Remove. (TARGET_ASM_EXCEPTION_SECTION): Define. * config/rs6000/sysv4.h, config/rs6000/xcoff.h (EXCEPTION_SECTION): Remove. (TARGET_ASM_EXCEPTION_SECTION): Define. * config/stormy16/stormy16.h: Remove comments referencing EXCEPTION_SECTION and EH_FRAME_SECTION_ASM_OP. * doc/tm.texi: Document TARGET_ASM_EXCEPTION_SECTION and TARGET_ASM_EH_FRAME_SECTION. From-SVN: r46409
2001-10-22 14:43:31 +00:00
(*targetm.asm_out.exception_section) ();
defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * dwarf2asm.c (dw2_force_const_mem, dw2_output_indirect_constant_1, dw2_output_indirect_constants, dw2_asm_output_encoded_addr_rtx): New. * dwarf2asm.h (dw2_asm_output_encoded_addr_rtx): Prototype. (dw2_output_indirect_constants): Prototype. * dwarf2out.c (dwarf2out_begin_prologue): Generate current_function_func_begin_label if we'll need it for EH. Exit early for IA64_UNWIND_INFO. * except.c: Get DW_EH_PE_* defines from dwarf2.h. (eh_data_format_name): Update for indirect references. (output_function_exception_table): Care for IA64_UNWIND_INFO. Handle ASM_PREFERRED_EH_DATA_FORMAT. * except.h (MUST_USE_SJLJ_EXCEPTIONS): IA64_UNWIND_INFO needn't define HAVE_eh_return etc. * final.c (final_start_function): Always call dwarf2out_begin_prologue. (final_end_function): Don't call output_function_exception_table. * toplev.c (compile_file): Call dw2_output_indirect_constants. (rest_of_compilation): Invoke output_function_exception_table for ia64 before assemble_end_function. * tm.texi (ASM_PREFERRED_EH_DATA_FORMAT): Document. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Document. * unwind-dw2.c (_Unwind_GetTextRelBase, _Unwind_GetDataRelBase): New. * unwind.h: Declare them. * libgcc-std.ver: Export them. * unwind-pe.h: New file. * config/alpha/elf.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * config/ia64/fde-glibc.c: Use "struct unw_table_entry" instead of "fde". (find_fde_for_dso): Extract DT_PLTGOT. (_Unwind_FindTableEntry): Rename from __ia64_find_fde; return the segment and gp as well. * config/ia64/frame-ia64.c: Remove file. * config/ia64/frame-ia64.h: Remove file. * config/ia64/unwind-ia64.c: New file. * config/ia64/unwind-ia64.h: New file. * config/ia64/ia64.h (ASM_OUTPUT_EH_CHAR): Remove. (ASM_OUTPUT_EH_SHORT, ASM_OUTPUT_EH_INT): Remove. (ASM_OUTPUT_EH_DOUBLE_INT): Remove. (ASM_PREFERRED_EH_DATA_FORMAT): New. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New. (IA64_UNWIND_INFO): Re-enable. (HANDLER_SECTION): Remove. (EH_RETURN_DATA_REGNO): New. * config/ia64/ia64.md (exception_receiver): Remove. * config/ia64/t-glibc (LIB2ADDEH): Re-enable. * config/ia64/t-ia64 (LIB2ADDEH): Re-enable. From-SVN: r41981
2001-05-11 23:03:20 -07:00
#endif
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
have_tt_data = (VARRAY_ACTIVE_SIZE (cfun->eh->ttype_data) > 0
|| VARRAY_ACTIVE_SIZE (cfun->eh->ehspec_data) > 0);
dwarf2asm.c (size_of_encoded_value): New function. * dwarf2asm.c (size_of_encoded_value): New function. * dwarf2asm.h: Declare it. * except.c (output_function_exception_table): Align the TType array only as wide as the encoding. From-SVN: r42028
2001-05-12 21:30:09 -07:00
/* Indicate the format of the @TType entries. */
if (! have_tt_data)
tt_format = DW_EH_PE_omit;
else
{
tt_format = ASM_PREFERRED_EH_DATA_FORMAT (/*code=*/0, /*global=*/1);
#ifdef HAVE_AS_LEB128
function.h (struct function): Rename profile_label_no. * function.h (struct function) [funcdef_no]: Rename profile_label_no. (current_function_funcdef_no): Similarly. * function.c (funcdef_no): Similarly. (prepare_function_start): Set current_function_funcdef_no. (expand_function_start): Don't set current_function_profile_label_no. * dwarf2out.h (current_funcdef_number): Remove. * dwarf2out.c (current_funcdef_number): Remove. Replace with current_function_funcdef_no throughout. * dwarfout.c, vmsdbgout.c: Similarly. * except.c (sjlj_funcdef_number): Remove. (sjlj_emit_function_enter): Use current_function_funcdef_no instead. (output_function_exception_table): Likewise. * final.c (profile_function): Use current_function_funcdef_no instead of current_function_profile_label_no. From-SVN: r54709
2002-06-17 10:47:22 -07:00
ASM_GENERATE_INTERNAL_LABEL (ttype_label, "LLSDATT",
current_function_funcdef_no);
dwarf2asm.c (size_of_encoded_value): New function. * dwarf2asm.c (size_of_encoded_value): New function. * dwarf2asm.h: Declare it. * except.c (output_function_exception_table): Align the TType array only as wide as the encoding. From-SVN: r42028
2001-05-12 21:30:09 -07:00
#endif
tt_format_size = size_of_encoded_value (tt_format);
except.c (output_function_exception_table): Use assemble_align. * except.c (output_function_exception_table): Use assemble_align. * varasm.c (assemble_eh_label): Remove. (assemble_eh_align, assemble_eh_integer): Remove. From-SVN: r44561
2001-08-01 15:47:09 -07:00
assemble_align (tt_format_size * BITS_PER_UNIT);
dwarf2asm.c (size_of_encoded_value): New function. * dwarf2asm.c (size_of_encoded_value): New function. * dwarf2asm.h: Declare it. * except.c (output_function_exception_table): Align the TType array only as wide as the encoding. From-SVN: r42028
2001-05-12 21:30:09 -07:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
Merge basic-improvements-branch to trunk From-SVN: r60174
2002-12-16 18:23:00 +00:00
(*targetm.asm_out.internal_label) (asm_out_file, "LLSDA",
function.h (struct function): Rename profile_label_no. * function.h (struct function) [funcdef_no]: Rename profile_label_no. (current_function_funcdef_no): Similarly. * function.c (funcdef_no): Similarly. (prepare_function_start): Set current_function_funcdef_no. (expand_function_start): Don't set current_function_profile_label_no. * dwarf2out.h (current_funcdef_number): Remove. * dwarf2out.c (current_funcdef_number): Remove. Replace with current_function_funcdef_no throughout. * dwarfout.c, vmsdbgout.c: Similarly. * except.c (sjlj_funcdef_number): Remove. (sjlj_emit_function_enter): Use current_function_funcdef_no instead. (output_function_exception_table): Likewise. * final.c (profile_function): Use current_function_funcdef_no instead of current_function_profile_label_no. From-SVN: r54709
2002-06-17 10:47:22 -07:00
current_function_funcdef_no);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* The LSDA header. */
/* Indicate the format of the landing pad start pointer. An omitted
field implies @LPStart == @Start. */
/* Currently we always put @LPStart == @Start. This field would
be most useful in moving the landing pads completely out of
line to another section, but it could also be used to minimize
the size of uleb128 landing pad offsets. */
defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * dwarf2asm.c (dw2_force_const_mem, dw2_output_indirect_constant_1, dw2_output_indirect_constants, dw2_asm_output_encoded_addr_rtx): New. * dwarf2asm.h (dw2_asm_output_encoded_addr_rtx): Prototype. (dw2_output_indirect_constants): Prototype. * dwarf2out.c (dwarf2out_begin_prologue): Generate current_function_func_begin_label if we'll need it for EH. Exit early for IA64_UNWIND_INFO. * except.c: Get DW_EH_PE_* defines from dwarf2.h. (eh_data_format_name): Update for indirect references. (output_function_exception_table): Care for IA64_UNWIND_INFO. Handle ASM_PREFERRED_EH_DATA_FORMAT. * except.h (MUST_USE_SJLJ_EXCEPTIONS): IA64_UNWIND_INFO needn't define HAVE_eh_return etc. * final.c (final_start_function): Always call dwarf2out_begin_prologue. (final_end_function): Don't call output_function_exception_table. * toplev.c (compile_file): Call dw2_output_indirect_constants. (rest_of_compilation): Invoke output_function_exception_table for ia64 before assemble_end_function. * tm.texi (ASM_PREFERRED_EH_DATA_FORMAT): Document. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Document. * unwind-dw2.c (_Unwind_GetTextRelBase, _Unwind_GetDataRelBase): New. * unwind.h: Declare them. * libgcc-std.ver: Export them. * unwind-pe.h: New file. * config/alpha/elf.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * config/ia64/fde-glibc.c: Use "struct unw_table_entry" instead of "fde". (find_fde_for_dso): Extract DT_PLTGOT. (_Unwind_FindTableEntry): Rename from __ia64_find_fde; return the segment and gp as well. * config/ia64/frame-ia64.c: Remove file. * config/ia64/frame-ia64.h: Remove file. * config/ia64/unwind-ia64.c: New file. * config/ia64/unwind-ia64.h: New file. * config/ia64/ia64.h (ASM_OUTPUT_EH_CHAR): Remove. (ASM_OUTPUT_EH_SHORT, ASM_OUTPUT_EH_INT): Remove. (ASM_OUTPUT_EH_DOUBLE_INT): Remove. (ASM_PREFERRED_EH_DATA_FORMAT): New. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New. (IA64_UNWIND_INFO): Re-enable. (HANDLER_SECTION): Remove. (EH_RETURN_DATA_REGNO): New. * config/ia64/ia64.md (exception_receiver): Remove. * config/ia64/t-glibc (LIB2ADDEH): Re-enable. * config/ia64/t-ia64 (LIB2ADDEH): Re-enable. From-SVN: r41981
2001-05-11 23:03:20 -07:00
lp_format = DW_EH_PE_omit;
dw2_asm_output_data (1, lp_format, "@LPStart format (%s)",
eh_data_format_name (lp_format));
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* @LPStart pointer would go here. */
defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * dwarf2asm.c (dw2_force_const_mem, dw2_output_indirect_constant_1, dw2_output_indirect_constants, dw2_asm_output_encoded_addr_rtx): New. * dwarf2asm.h (dw2_asm_output_encoded_addr_rtx): Prototype. (dw2_output_indirect_constants): Prototype. * dwarf2out.c (dwarf2out_begin_prologue): Generate current_function_func_begin_label if we'll need it for EH. Exit early for IA64_UNWIND_INFO. * except.c: Get DW_EH_PE_* defines from dwarf2.h. (eh_data_format_name): Update for indirect references. (output_function_exception_table): Care for IA64_UNWIND_INFO. Handle ASM_PREFERRED_EH_DATA_FORMAT. * except.h (MUST_USE_SJLJ_EXCEPTIONS): IA64_UNWIND_INFO needn't define HAVE_eh_return etc. * final.c (final_start_function): Always call dwarf2out_begin_prologue. (final_end_function): Don't call output_function_exception_table. * toplev.c (compile_file): Call dw2_output_indirect_constants. (rest_of_compilation): Invoke output_function_exception_table for ia64 before assemble_end_function. * tm.texi (ASM_PREFERRED_EH_DATA_FORMAT): Document. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Document. * unwind-dw2.c (_Unwind_GetTextRelBase, _Unwind_GetDataRelBase): New. * unwind.h: Declare them. * libgcc-std.ver: Export them. * unwind-pe.h: New file. * config/alpha/elf.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * config/ia64/fde-glibc.c: Use "struct unw_table_entry" instead of "fde". (find_fde_for_dso): Extract DT_PLTGOT. (_Unwind_FindTableEntry): Rename from __ia64_find_fde; return the segment and gp as well. * config/ia64/frame-ia64.c: Remove file. * config/ia64/frame-ia64.h: Remove file. * config/ia64/unwind-ia64.c: New file. * config/ia64/unwind-ia64.h: New file. * config/ia64/ia64.h (ASM_OUTPUT_EH_CHAR): Remove. (ASM_OUTPUT_EH_SHORT, ASM_OUTPUT_EH_INT): Remove. (ASM_OUTPUT_EH_DOUBLE_INT): Remove. (ASM_PREFERRED_EH_DATA_FORMAT): New. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New. (IA64_UNWIND_INFO): Re-enable. (HANDLER_SECTION): Remove. (EH_RETURN_DATA_REGNO): New. * config/ia64/ia64.md (exception_receiver): Remove. * config/ia64/t-glibc (LIB2ADDEH): Re-enable. * config/ia64/t-ia64 (LIB2ADDEH): Re-enable. From-SVN: r41981
2001-05-11 23:03:20 -07:00
dw2_asm_output_data (1, tt_format, "@TType format (%s)",
eh_data_format_name (tt_format));
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#ifndef HAVE_AS_LEB128
if (USING_SJLJ_EXCEPTIONS)
call_site_len = sjlj_size_of_call_site_table ();
else
call_site_len = dw2_size_of_call_site_table ();
#endif
/* A pc-relative 4-byte displacement to the @TType data. */
if (have_tt_data)
{
#ifdef HAVE_AS_LEB128
char ttype_after_disp_label[32];
except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being... 2001-12-11 Roger Sayle <roger@eyesopen.com> * except.c (reachable_next_level): Handle ERT_UNKNOWN to avoid compiler warning about enumeration values not being handled. From-SVN: r47926
2001-12-12 09:27:29 +01:00
ASM_GENERATE_INTERNAL_LABEL (ttype_after_disp_label, "LLSDATTD",
function.h (struct function): Rename profile_label_no. * function.h (struct function) [funcdef_no]: Rename profile_label_no. (current_function_funcdef_no): Similarly. * function.c (funcdef_no): Similarly. (prepare_function_start): Set current_function_funcdef_no. (expand_function_start): Don't set current_function_profile_label_no. * dwarf2out.h (current_funcdef_number): Remove. * dwarf2out.c (current_funcdef_number): Remove. Replace with current_function_funcdef_no throughout. * dwarfout.c, vmsdbgout.c: Similarly. * except.c (sjlj_funcdef_number): Remove. (sjlj_emit_function_enter): Use current_function_funcdef_no instead. (output_function_exception_table): Likewise. * final.c (profile_function): Use current_function_funcdef_no instead of current_function_profile_label_no. From-SVN: r54709
2002-06-17 10:47:22 -07:00
current_function_funcdef_no);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
dw2_asm_output_delta_uleb128 (ttype_label, ttype_after_disp_label,
"@TType base offset");
ASM_OUTPUT_LABEL (asm_out_file, ttype_after_disp_label);
#else
/* Ug. Alignment queers things. */
dwarf2asm.c (size_of_encoded_value): New function. * dwarf2asm.c (size_of_encoded_value): New function. * dwarf2asm.h: Declare it. * except.c (output_function_exception_table): Align the TType array only as wide as the encoding. From-SVN: r42028
2001-05-12 21:30:09 -07:00
unsigned int before_disp, after_disp, last_disp, disp;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
before_disp = 1 + 1;
after_disp = (1 + size_of_uleb128 (call_site_len)
+ call_site_len
+ VARRAY_ACTIVE_SIZE (cfun->eh->action_record_data)
dwarf2asm.c (size_of_encoded_value): New function. * dwarf2asm.c (size_of_encoded_value): New function. * dwarf2asm.h: Declare it. * except.c (output_function_exception_table): Align the TType array only as wide as the encoding. From-SVN: r42028
2001-05-12 21:30:09 -07:00
+ (VARRAY_ACTIVE_SIZE (cfun->eh->ttype_data)
* tt_format_size));
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
disp = after_disp;
do
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
unsigned int disp_size, pad;
last_disp = disp;
disp_size = size_of_uleb128 (disp);
pad = before_disp + disp_size + after_disp;
dwarf2asm.c (size_of_encoded_value): New function. * dwarf2asm.c (size_of_encoded_value): New function. * dwarf2asm.h: Declare it. * except.c (output_function_exception_table): Align the TType array only as wide as the encoding. From-SVN: r42028
2001-05-12 21:30:09 -07:00
if (pad % tt_format_size)
pad = tt_format_size - (pad % tt_format_size);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
else
pad = 0;
disp = after_disp + pad;
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
while (disp != last_disp);
dw2_asm_output_data_uleb128 (disp, "@TType base offset");
#endif
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
/* Indicate the format of the call-site offsets. */
#ifdef HAVE_AS_LEB128
defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * dwarf2asm.c (dw2_force_const_mem, dw2_output_indirect_constant_1, dw2_output_indirect_constants, dw2_asm_output_encoded_addr_rtx): New. * dwarf2asm.h (dw2_asm_output_encoded_addr_rtx): Prototype. (dw2_output_indirect_constants): Prototype. * dwarf2out.c (dwarf2out_begin_prologue): Generate current_function_func_begin_label if we'll need it for EH. Exit early for IA64_UNWIND_INFO. * except.c: Get DW_EH_PE_* defines from dwarf2.h. (eh_data_format_name): Update for indirect references. (output_function_exception_table): Care for IA64_UNWIND_INFO. Handle ASM_PREFERRED_EH_DATA_FORMAT. * except.h (MUST_USE_SJLJ_EXCEPTIONS): IA64_UNWIND_INFO needn't define HAVE_eh_return etc. * final.c (final_start_function): Always call dwarf2out_begin_prologue. (final_end_function): Don't call output_function_exception_table. * toplev.c (compile_file): Call dw2_output_indirect_constants. (rest_of_compilation): Invoke output_function_exception_table for ia64 before assemble_end_function. * tm.texi (ASM_PREFERRED_EH_DATA_FORMAT): Document. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Document. * unwind-dw2.c (_Unwind_GetTextRelBase, _Unwind_GetDataRelBase): New. * unwind.h: Declare them. * libgcc-std.ver: Export them. * unwind-pe.h: New file. * config/alpha/elf.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * config/ia64/fde-glibc.c: Use "struct unw_table_entry" instead of "fde". (find_fde_for_dso): Extract DT_PLTGOT. (_Unwind_FindTableEntry): Rename from __ia64_find_fde; return the segment and gp as well. * config/ia64/frame-ia64.c: Remove file. * config/ia64/frame-ia64.h: Remove file. * config/ia64/unwind-ia64.c: New file. * config/ia64/unwind-ia64.h: New file. * config/ia64/ia64.h (ASM_OUTPUT_EH_CHAR): Remove. (ASM_OUTPUT_EH_SHORT, ASM_OUTPUT_EH_INT): Remove. (ASM_OUTPUT_EH_DOUBLE_INT): Remove. (ASM_PREFERRED_EH_DATA_FORMAT): New. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New. (IA64_UNWIND_INFO): Re-enable. (HANDLER_SECTION): Remove. (EH_RETURN_DATA_REGNO): New. * config/ia64/ia64.md (exception_receiver): Remove. * config/ia64/t-glibc (LIB2ADDEH): Re-enable. * config/ia64/t-ia64 (LIB2ADDEH): Re-enable. From-SVN: r41981
2001-05-11 23:03:20 -07:00
cs_format = DW_EH_PE_uleb128;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#else
defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * dwarf2asm.c (dw2_force_const_mem, dw2_output_indirect_constant_1, dw2_output_indirect_constants, dw2_asm_output_encoded_addr_rtx): New. * dwarf2asm.h (dw2_asm_output_encoded_addr_rtx): Prototype. (dw2_output_indirect_constants): Prototype. * dwarf2out.c (dwarf2out_begin_prologue): Generate current_function_func_begin_label if we'll need it for EH. Exit early for IA64_UNWIND_INFO. * except.c: Get DW_EH_PE_* defines from dwarf2.h. (eh_data_format_name): Update for indirect references. (output_function_exception_table): Care for IA64_UNWIND_INFO. Handle ASM_PREFERRED_EH_DATA_FORMAT. * except.h (MUST_USE_SJLJ_EXCEPTIONS): IA64_UNWIND_INFO needn't define HAVE_eh_return etc. * final.c (final_start_function): Always call dwarf2out_begin_prologue. (final_end_function): Don't call output_function_exception_table. * toplev.c (compile_file): Call dw2_output_indirect_constants. (rest_of_compilation): Invoke output_function_exception_table for ia64 before assemble_end_function. * tm.texi (ASM_PREFERRED_EH_DATA_FORMAT): Document. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Document. * unwind-dw2.c (_Unwind_GetTextRelBase, _Unwind_GetDataRelBase): New. * unwind.h: Declare them. * libgcc-std.ver: Export them. * unwind-pe.h: New file. * config/alpha/elf.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * config/ia64/fde-glibc.c: Use "struct unw_table_entry" instead of "fde". (find_fde_for_dso): Extract DT_PLTGOT. (_Unwind_FindTableEntry): Rename from __ia64_find_fde; return the segment and gp as well. * config/ia64/frame-ia64.c: Remove file. * config/ia64/frame-ia64.h: Remove file. * config/ia64/unwind-ia64.c: New file. * config/ia64/unwind-ia64.h: New file. * config/ia64/ia64.h (ASM_OUTPUT_EH_CHAR): Remove. (ASM_OUTPUT_EH_SHORT, ASM_OUTPUT_EH_INT): Remove. (ASM_OUTPUT_EH_DOUBLE_INT): Remove. (ASM_PREFERRED_EH_DATA_FORMAT): New. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New. (IA64_UNWIND_INFO): Re-enable. (HANDLER_SECTION): Remove. (EH_RETURN_DATA_REGNO): New. * config/ia64/ia64.md (exception_receiver): Remove. * config/ia64/t-glibc (LIB2ADDEH): Re-enable. * config/ia64/t-ia64 (LIB2ADDEH): Re-enable. From-SVN: r41981
2001-05-11 23:03:20 -07:00
cs_format = DW_EH_PE_udata4;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#endif
defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * dwarf2asm.c (dw2_force_const_mem, dw2_output_indirect_constant_1, dw2_output_indirect_constants, dw2_asm_output_encoded_addr_rtx): New. * dwarf2asm.h (dw2_asm_output_encoded_addr_rtx): Prototype. (dw2_output_indirect_constants): Prototype. * dwarf2out.c (dwarf2out_begin_prologue): Generate current_function_func_begin_label if we'll need it for EH. Exit early for IA64_UNWIND_INFO. * except.c: Get DW_EH_PE_* defines from dwarf2.h. (eh_data_format_name): Update for indirect references. (output_function_exception_table): Care for IA64_UNWIND_INFO. Handle ASM_PREFERRED_EH_DATA_FORMAT. * except.h (MUST_USE_SJLJ_EXCEPTIONS): IA64_UNWIND_INFO needn't define HAVE_eh_return etc. * final.c (final_start_function): Always call dwarf2out_begin_prologue. (final_end_function): Don't call output_function_exception_table. * toplev.c (compile_file): Call dw2_output_indirect_constants. (rest_of_compilation): Invoke output_function_exception_table for ia64 before assemble_end_function. * tm.texi (ASM_PREFERRED_EH_DATA_FORMAT): Document. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Document. * unwind-dw2.c (_Unwind_GetTextRelBase, _Unwind_GetDataRelBase): New. * unwind.h: Declare them. * libgcc-std.ver: Export them. * unwind-pe.h: New file. * config/alpha/elf.h (ASM_PREFERRED_EH_DATA_FORMAT): New. * config/ia64/fde-glibc.c: Use "struct unw_table_entry" instead of "fde". (find_fde_for_dso): Extract DT_PLTGOT. (_Unwind_FindTableEntry): Rename from __ia64_find_fde; return the segment and gp as well. * config/ia64/frame-ia64.c: Remove file. * config/ia64/frame-ia64.h: Remove file. * config/ia64/unwind-ia64.c: New file. * config/ia64/unwind-ia64.h: New file. * config/ia64/ia64.h (ASM_OUTPUT_EH_CHAR): Remove. (ASM_OUTPUT_EH_SHORT, ASM_OUTPUT_EH_INT): Remove. (ASM_OUTPUT_EH_DOUBLE_INT): Remove. (ASM_PREFERRED_EH_DATA_FORMAT): New. (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New. (IA64_UNWIND_INFO): Re-enable. (HANDLER_SECTION): Remove. (EH_RETURN_DATA_REGNO): New. * config/ia64/ia64.md (exception_receiver): Remove. * config/ia64/t-glibc (LIB2ADDEH): Re-enable. * config/ia64/t-ia64 (LIB2ADDEH): Re-enable. From-SVN: r41981
2001-05-11 23:03:20 -07:00
dw2_asm_output_data (1, cs_format, "call-site format (%s)",
eh_data_format_name (cs_format));
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#ifdef HAVE_AS_LEB128
ASM_GENERATE_INTERNAL_LABEL (cs_after_size_label, "LLSDACSB",
function.h (struct function): Rename profile_label_no. * function.h (struct function) [funcdef_no]: Rename profile_label_no. (current_function_funcdef_no): Similarly. * function.c (funcdef_no): Similarly. (prepare_function_start): Set current_function_funcdef_no. (expand_function_start): Don't set current_function_profile_label_no. * dwarf2out.h (current_funcdef_number): Remove. * dwarf2out.c (current_funcdef_number): Remove. Replace with current_function_funcdef_no throughout. * dwarfout.c, vmsdbgout.c: Similarly. * except.c (sjlj_funcdef_number): Remove. (sjlj_emit_function_enter): Use current_function_funcdef_no instead. (output_function_exception_table): Likewise. * final.c (profile_function): Use current_function_funcdef_no instead of current_function_profile_label_no. From-SVN: r54709
2002-06-17 10:47:22 -07:00
current_function_funcdef_no);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
ASM_GENERATE_INTERNAL_LABEL (cs_end_label, "LLSDACSE",
function.h (struct function): Rename profile_label_no. * function.h (struct function) [funcdef_no]: Rename profile_label_no. (current_function_funcdef_no): Similarly. * function.c (funcdef_no): Similarly. (prepare_function_start): Set current_function_funcdef_no. (expand_function_start): Don't set current_function_profile_label_no. * dwarf2out.h (current_funcdef_number): Remove. * dwarf2out.c (current_funcdef_number): Remove. Replace with current_function_funcdef_no throughout. * dwarfout.c, vmsdbgout.c: Similarly. * except.c (sjlj_funcdef_number): Remove. (sjlj_emit_function_enter): Use current_function_funcdef_no instead. (output_function_exception_table): Likewise. * final.c (profile_function): Use current_function_funcdef_no instead of current_function_profile_label_no. From-SVN: r54709
2002-06-17 10:47:22 -07:00
current_function_funcdef_no);
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
dw2_asm_output_delta_uleb128 (cs_end_label, cs_after_size_label,
"Call-site table length");
ASM_OUTPUT_LABEL (asm_out_file, cs_after_size_label);
if (USING_SJLJ_EXCEPTIONS)
sjlj_output_call_site_table ();
else
dw2_output_call_site_table ();
ASM_OUTPUT_LABEL (asm_out_file, cs_end_label);
#else
dw2_asm_output_data_uleb128 (call_site_len,"Call-site table length");
if (USING_SJLJ_EXCEPTIONS)
sjlj_output_call_site_table ();
else
dw2_output_call_site_table ();
#endif
/* ??? Decode and interpret the data for flag_debug_asm. */
n = VARRAY_ACTIVE_SIZE (cfun->eh->action_record_data);
for (i = 0; i < n; ++i)
dw2_asm_output_data (1, VARRAY_UCHAR (cfun->eh->action_record_data, i),
(i ? NULL : "Action record table"));
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (have_tt_data)
except.c (output_function_exception_table): Use assemble_align. * except.c (output_function_exception_table): Use assemble_align. * varasm.c (assemble_eh_label): Remove. (assemble_eh_align, assemble_eh_integer): Remove. From-SVN: r44561
2001-08-01 15:47:09 -07:00
assemble_align (tt_format_size * BITS_PER_UNIT);
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
i = VARRAY_ACTIVE_SIZE (cfun->eh->ttype_data);
while (i-- > 0)
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
{
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
tree type = VARRAY_TREE (cfun->eh->ttype_data, i);
dwarf2asm.c (dw2_asm_output_encoded_addr_rtx): Use proper alignment for assemble_integer for DW_EH_PE_aligned. * dwarf2asm.c (dw2_asm_output_encoded_addr_rtx): Use proper alignment for assemble_integer for DW_EH_PE_aligned. * except.c (output_function_exception_table): Likewise. From-SVN: r45198
2001-08-27 10:25:36 -07:00
rtx value;
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
if (type == NULL_TREE)
type = integer_zero_node;
else
type = lookup_type_for_runtime (type);
dwarf2asm.c (dw2_asm_output_encoded_addr_rtx): Use proper alignment for assemble_integer for DW_EH_PE_aligned. * dwarf2asm.c (dw2_asm_output_encoded_addr_rtx): Use proper alignment for assemble_integer for DW_EH_PE_aligned. * except.c (output_function_exception_table): Likewise. From-SVN: r45198
2001-08-27 10:25:36 -07:00
value = expand_expr (type, NULL_RTX, VOIDmode, EXPAND_INITIALIZER);
if (tt_format == DW_EH_PE_absptr || tt_format == DW_EH_PE_aligned)
assemble_integer (value, tt_format_size,
tt_format_size * BITS_PER_UNIT, 1);
else
emit-rtl.c: Likewise. * emit-rtl.c: Likewise. * errors.h: Likewise. * except.c: Likewise. * explow.c: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. From-SVN: r54197
2002-06-03 01:13:17 +00:00
dw2_asm_output_encoded_addr_rtx (tt_format, value, NULL);
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
}
IA-64 ABI Exception Handling. From-SVN: r40924
2001-03-28 03:04:51 -08:00
#ifdef HAVE_AS_LEB128
if (have_tt_data)
ASM_OUTPUT_LABEL (asm_out_file, ttype_label);
#endif
/* ??? Decode and interpret the data for flag_debug_asm. */
n = VARRAY_ACTIVE_SIZE (cfun->eh->ehspec_data);
for (i = 0; i < n; ++i)
dw2_asm_output_data (1, VARRAY_UCHAR (cfun->eh->ehspec_data, i),
(i ? NULL : "Exception specification table"));
function_section (current_function_decl);
except.h (eh_nesting_info): Add new structure defintion. Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com> * except.h (eh_nesting_info): Add new structure defintion. (init_eh_nesting_info, free_eh_nesting_info): Add function prototypes. (reachable_handlers, update_rethrow_references): Add function prototypes. * rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes a rethrow symbol instead of an integer exception region number. * flow.c (Make_edges): Use new exception nesting routines to determine which handlers are reachable from a CALL or asynchronous insn. Dont add an edge for calls with a REG_EH_REGION of -1 to non-local goto receivers. (delete_eh_regions): Update rethrow labels, and don't delete regions which are the target of a rethrow. * except.c (struct func_eh_entry): Add rethrow_ref field, now we can avoid overloading the SYMBOL_REF_USED flag. (rethrow_symbol_map): Use new rethrow_ref field. (rethrow_used): Use new rethrow_ref field. (expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead of an integer. Fix formatting. (output_exception_table_entry): Use new rethrow_ref field. (can_throw): Check for EH_REGION_NOTE before deciding whether a CALL can throw or not. (scan_region): Call rethrow_used() instead of accessing data structure. (update_rethrow_references): New function to make sure only regions which are still targets of a rethrow are flagged as such. (process_nestinfo): New static function to initialize a handler list for a specific region. (init_eh_nesting_info): New function to allocate and initialize the list of all EH handlers reachable from all regions. (reachable_handlers): New function to retrieve the list of handlers reachable from a specific region and insn. (free_eh_nesting_info): New function to dispose of a list of reachable handlers. From-SVN: r28647
1999-08-10 16:19:16 +00:00
}
Merge from pch-branch up to tag pch-commit-20020603. From-SVN: r54232
2002-06-04 07:11:05 +00:00
#include "gt-except.h"
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