GCC modified for the FreeChainXenon project
4f6c213142
* builtins.c (expand_builtin_setjmp): Delete. (expand_builtin) <BUILT_IN_SETJMP>: Mark as unreachable. <BUILT_IN_SETJMP_SETUP>: New case. <BUILT_IN_SETJMP_DISPATCHER>: Likewise. <BUILT_IN_SETJMP_RECEIVER>: Likewise. * builtins.def (BUILT_IN_SETJMP_SETUP): New built-in stub. (BUILT_IN_SETJMP_DISPATCHER): Likewise. (BUILT_IN_SETJMP_RECEIVER): Likewise. * gimple-low.c (struct lower_data): New field calls_builtin_setjmp. (lower_function_body): Initialize it to false. If it is set to true at the end of the processing, emit the setjmp dispatcher. (lower_stmt) <CALL_EXPR>: Invoke lower_builtin_setjmp if the callee is __builtin_setjmp and set calls_builtin_setjmp to true as well. <MODIFY_EXPR>: Fall through to above case if there is a CALL_EXPR on the rhs of the assignment. (lower_builtin_setjmp): New function. * tree.c (build_common_builtin_nodes): Build BUILT_IN_SETJMP_SETUP, BUILT_IN_SETJMP_DISPATCHER and BUILT_IN_SETJMP_RECEIVER nodes. * tree-cfg.c (make_exit_edges) <CALL_EXPR>: Use specific predicate to detect calls that can go to non-local labels. Use specific helper to create the abnormal edges associated with them. <MODIFY_EXPR>: Likewise. (make_abnormal_goto_edges): New function extracted from... (make_goto_expr_edges): ...here. Call it for computed gotos. (simple_goto_p): Minor tweak. (tree_can_make_abnormal_goto): New predicate. (tree_redirect_edge_and_branch): Return zero on all abnormal edges. (tree_purge_dead_abnormal_call_edges): New function. * tree-flow.h (tree_can_make_abnormal_goto): Declare. (tree_purge_dead_abnormal_call_edges): Likewise. (make_abnormal_goto_edges): Likewise. * tree-inline.c (expand_call_inline): Simplify statement frobbing. Purge all dead abnormal edges if the call was in the last statement. * tree-optimize.c (has_abnormal_outgoing_edge_p): New predicate. (execute_fixup_cfg): If there are non-local labels in the function, scan the basic blocks and split them at calls that can go to non-local labels or add missing abnormal call edges. Write down the CFG in the dump file. (pass_fixup_cfg): Remove TODO_dump_func flag. * unwind-sjlj.c: Poison setjmp. * doc/install.texi (enable-sjlj-exceptions): Use more general wording. * doc/tm.texi (DWARF2_UNWIND_INFO): Likewise. (TARGET_UNWIND_TABLES_DEFAULT): Fix typo. (DONT_USE_BUILTIN_SETJMP): Document it. From-SVN: r117298 |
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| boehm-gc | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgfortran | ||
| libgomp | ||
| libiberty | ||
| libjava | ||
| libmudflap | ||
| libobjc | ||
| libssp | ||
| libstdc++-v3 | ||
| maintainer-scripts | ||
| zlib | ||
| ABOUT-NLS | ||
| ChangeLog | ||
| ChangeLog.tree-ssa | ||
| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.in | ||
| COPYING | ||
| COPYING.LIB | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| ltcf-c.sh | ||
| ltcf-cxx.sh | ||
| ltcf-gcj.sh | ||
| ltconfig | ||
| ltmain.sh | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
| move-if-change | ||
| README | ||
| README.SCO | ||
| symlink-tree | ||
| ylwrap | ||
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the file COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs.html for how to report bugs usefully.