rs6000.c (rs6000_default_long_calls, [...]): New.
* config/rs6000/rs6000.c (rs6000_default_long_calls, rs6000_longcall_switch, rs6000_set_default_type_attributes): New. (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Set it. (rs6000_override_options): Handle -m(no-)longcall. (init_cumulative_args, output_mi_thunk): Check for both longcall and shortcall attributes on the function. (rs6000_attribute_table): Add "shortcall". (rs6000_handle_longcall_attribute): Update comment. (altivec_expand_unop_builtin, altivec_expand_binop_builtin, altivec_expand_ternop_builtin): Add default clauses to switches to silence warnings. * config/rs6000/rs6000.h: Declare rs6000_longcall_switch and rs6000_default_long_calls. Define REGISTER_TARGET_PRAGMAS. (TARGET_OPTIONS): Add longcall and no-longcall. * config/rs6000/rs6000.md (call_nonlocal_sysv, call_value_nonlocal_sysv): Split by alternatives. One pair accepts only SYMBOL_REFs and rejects if CALL_LONG is set in the call cookie. The other pair accepts only LR/CTR and has no restriction. * config.gcc (rs6000-*-* | powerpc*-*-* trailer stanza): Set c_target_objs, cxx_target_objs; add t-rs6000-c-rule to tmake_file. * config/rs6000/rs6000-c.c: New file. * config/rs6000/t-rs6000-c-rule: New file. * config/rs6000/rs6000-protos.c: Add multiple-include guard. Prototype rs6000_pragma_longcall. * doc/extend.texi: Document shortcall attribute. * doc/invoke.texi: Document -mlongcall, -mno-longcall. From-SVN: r53382
This commit is contained in:
Zack Weinberg
parent
4c476cf33a
commit
a5c76ee6e2
10 changed files with 338 additions and 88 deletions
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@ -1,3 +1,38 @@
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2002-05-11 Zack Weinberg <zack@codesourcery.com>
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* config/rs6000/rs6000.c (rs6000_default_long_calls,
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rs6000_longcall_switch, rs6000_set_default_type_attributes): New.
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(TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Set it.
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(rs6000_override_options): Handle -m(no-)longcall.
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(init_cumulative_args, output_mi_thunk): Check for both
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longcall and shortcall attributes on the function.
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(rs6000_attribute_table): Add "shortcall".
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(rs6000_handle_longcall_attribute): Update comment.
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(altivec_expand_unop_builtin, altivec_expand_binop_builtin,
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altivec_expand_ternop_builtin): Add default clauses to switches
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to silence warnings.
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* config/rs6000/rs6000.h: Declare rs6000_longcall_switch and
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rs6000_default_long_calls. Define REGISTER_TARGET_PRAGMAS.
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(TARGET_OPTIONS): Add longcall and no-longcall.
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* config/rs6000/rs6000.md (call_nonlocal_sysv,
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call_value_nonlocal_sysv): Split by alternatives. One pair
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accepts only SYMBOL_REFs and rejects if CALL_LONG is set in
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the call cookie. The other pair accepts only LR/CTR and has
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no restriction.
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* config.gcc (rs6000-*-* | powerpc*-*-* trailer stanza):
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Set c_target_objs, cxx_target_objs; add t-rs6000-c-rule to
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tmake_file.
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* config/rs6000/rs6000-c.c: New file.
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* config/rs6000/t-rs6000-c-rule: New file.
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* config/rs6000/rs6000-protos.c: Add multiple-include guard.
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Prototype rs6000_pragma_longcall.
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* doc/extend.texi: Document shortcall attribute.
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* doc/invoke.texi: Document -mlongcall, -mno-longcall.
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2002-05-12 Marek Michalkiewicz <marekm@amelek.gda.pl>
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* config/avr/avr.c (avr_mcu_types): Update supported devices.
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@ -205,38 +240,38 @@ Thu May 9 14:52:45 CEST 2002 Jan Hubicka <jh@suse.cz>
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* final.c (end_final): Use C trees to output data structures for profiling.
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* Makefile.in (LIBGCC_DEPS): Added missing dependency on gcov-io.h
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(profile.o): New dependency profile.h
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(final.o): New dependency profile.h
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* profile.h: New file. New global structure profile_info.
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* final.h (count_edges_instrumented_now): Declare.
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(current_function_cfg_checksum): Declare.
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(function_list): New structure.
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(functions_head, functions_tail): New static variables.
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(end_final): Emits more data, removed some -ax stuff.
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(final): Stores function names and chcksums.
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* gcov-io.h (__write_gcov_string): New function.
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(__read_gcov_string): New function.
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* gcov.c (read_profile): New function.
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(create_program_flow_graph): Uses read_profile instead of reading
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(profile.o): New dependency profile.h
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(final.o): New dependency profile.h
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* profile.h: New file. New global structure profile_info.
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* final.h (count_edges_instrumented_now): Declare.
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(current_function_cfg_checksum): Declare.
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(function_list): New structure.
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(functions_head, functions_tail): New static variables.
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(end_final): Emits more data, removed some -ax stuff.
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(final): Stores function names and chcksums.
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* gcov-io.h (__write_gcov_string): New function.
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(__read_gcov_string): New function.
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* gcov.c (read_profile): New function.
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(create_program_flow_graph): Uses read_profile instead of reading
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da_file.
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(read_files): Removed da_file checking, it's done by read_profile now.
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* libgcc2.c (bb_function_info): New structure.
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(bb): New field in structure, removed some -ax stuff.
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(__bb_exit_func): Changed structure of da_file.
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* profile.c (count_edges_instrumented_now): New global variable.
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(current_function_cfg_checksum): New global variable.
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(max_counter_in_program): New global variable.
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(get_exec_counts): New function.
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(compute_checksum): New function.
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(instrument_edges): Sets count_edges_instrumented_now.
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(compute_branch_probabilities): Uses get_exec_counts instead of
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(read_files): Removed da_file checking, it's done by read_profile now.
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* libgcc2.c (bb_function_info): New structure.
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(bb): New field in structure, removed some -ax stuff.
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(__bb_exit_func): Changed structure of da_file.
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* profile.c (count_edges_instrumented_now): New global variable.
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(current_function_cfg_checksum): New global variable.
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(max_counter_in_program): New global variable.
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(get_exec_counts): New function.
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(compute_checksum): New function.
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(instrument_edges): Sets count_edges_instrumented_now.
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(compute_branch_probabilities): Uses get_exec_counts instead of
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reading da_file.
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(branch_prob): Calls compute_checksum and writes extra data to bbg_file.
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(init_branch_prob): Removed da_file checking, done in get_exec_counts
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(branch_prob): Calls compute_checksum and writes extra data to bbg_file.
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(init_branch_prob): Removed da_file checking, done in get_exec_counts
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now.
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(end_branch_prob): Removed da_file checking, done in get_exec_counts
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(end_branch_prob): Removed da_file checking, done in get_exec_counts
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now.
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* gcov.texi: Updated information about gcov file format.
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* gcov.texi: Updated information about gcov file format.
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2002-05-09 Kazu Hirata <kazu@cs.umass.edu>
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@ -347,7 +382,7 @@ doc:
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* config/arm/t-arm-elf (MULTILIB): Do not allow big-endian/
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little-endian multilibs to override arm/thumb multilibs.
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Do not build hardware floating point multilibs, nor apcs-26
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Do not build hardware floating point multilibs, nor apcs-26
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multilibs for the Thumb.
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2002-05-08 Mark Mitchell <mark@codesourcery.com>
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@ -496,7 +531,7 @@ Tue May 7 10:06:22 2002 Jeffrey A Law (law@redhat.com)
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2002-05-07 Aldy Hernandez <aldyh@redhat.com>
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* config/rs6000/rs6000.c (bdesc_2arg): Fix vmax typos.
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* config/rs6000/rs6000.c (bdesc_2arg): Fix vmax typos.
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2002-05-06 David S. Miller <davem@redhat.com>
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@ -3650,6 +3650,9 @@ powerpc*-*-* | rs6000-*-*)
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fi
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;;
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esac
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c_target_objs="rs6000-c.o"
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cxx_target_objs="rs6000-c.o"
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tmake_file="${tmake_file} rs6000/t-rs6000-c-rule"
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;;
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sparc*-*-*)
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case ".$with_cpu" in
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71
gcc/config/rs6000/rs6000-c.c
Normal file
71
gcc/config/rs6000/rs6000-c.c
Normal file
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@ -0,0 +1,71 @@
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/* Subroutines for the C front end on the POWER and PowerPC architectures.
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Copyright (C) 2002
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Free Software Foundation, Inc.
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Contributed by Zack Weinberg <zack@codesourcery.com>
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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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.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "config.h"
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#include "system.h"
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#include "cpplib.h"
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#include "tree.h"
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#include "c-lex.h"
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#include "errors.h"
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#include "tm_p.h"
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/* Handle the machine specific pragma longcall. Its syntax is
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# pragma longcall ( TOGGLE )
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where TOGGLE is either 0 or 1.
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rs6000_default_long_calls is set to the value of TOGGLE, changing
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whether or not new function declarations receive a longcall
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attribute by default. */
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#define SYNTAX_ERROR(msgid) do { \
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warning (msgid); \
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warning ("ignoring malformed #pragma longcall"); \
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return; \
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} while (0)
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void
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rs6000_pragma_longcall (pfile)
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cpp_reader *pfile ATTRIBUTE_UNUSED;
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{
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tree x, n;
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/* If we get here, generic code has already scanned the directive
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leader and the word "longcall". */
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if (c_lex (&x) != CPP_OPEN_PAREN)
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SYNTAX_ERROR ("missing open paren");
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if (c_lex (&n) != CPP_NUMBER)
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SYNTAX_ERROR ("missing number");
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if (c_lex (&x) != CPP_CLOSE_PAREN)
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SYNTAX_ERROR ("missing close paren");
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if (n != integer_zero_node && n != integer_one_node)
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SYNTAX_ERROR ("number must be 0 or 1");
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if (c_lex (&x) != CPP_EOF)
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warning ("junk at end of #pragma longcall");
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rs6000_default_long_calls = (n == integer_one_node);
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}
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@ -19,6 +19,9 @@ along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef GCC_RS6000_PROTOS_H
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#define GCC_RS6000_PROTOS_H
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/* Declare functions in rs6000.c */
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#ifdef RTX_CODE
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@ -186,3 +189,9 @@ extern void rs6000_emit_epilogue PARAMS ((int));
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extern void debug_stack_info PARAMS ((rs6000_stack_t *));
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extern void machopic_output_stub PARAMS ((FILE *, const char *, const char *));
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#ifdef GCC_CPPLIB_H
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extern void rs6000_pragma_longcall PARAMS ((cpp_reader *));
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#endif
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#endif /* rs6000-protos.h */
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|
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@ -124,6 +124,13 @@ char toc_label_name[10];
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/* Alias set for saves and restores from the rs6000 stack. */
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static int rs6000_sr_alias_set;
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/* Call distance, overridden by -mlongcall and #pragma longcall(1).
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The only place that looks at this is rs6000_set_default_type_attributes;
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everywhere else should rely on the presence or absence of a longcall
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attribute on the function declaration. */
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int rs6000_default_long_calls;
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const char *rs6000_longcall_switch;
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static void rs6000_add_gc_roots PARAMS ((void));
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static int num_insns_constant_wide PARAMS ((HOST_WIDE_INT));
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static rtx expand_block_move_mem PARAMS ((enum machine_mode, rtx, rtx));
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|
@ -146,6 +153,7 @@ static bool rs6000_assemble_integer PARAMS ((rtx, unsigned int, int));
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static int rs6000_ra_ever_killed PARAMS ((void));
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static tree rs6000_handle_longcall_attribute PARAMS ((tree *, tree, tree, int, bool *));
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const struct attribute_spec rs6000_attribute_table[];
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static void rs6000_set_default_type_attributes PARAMS ((tree));
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static void rs6000_output_function_prologue PARAMS ((FILE *, HOST_WIDE_INT));
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static void rs6000_output_function_epilogue PARAMS ((FILE *, HOST_WIDE_INT));
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static rtx rs6000_emit_set_long_const PARAMS ((rtx,
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|
@ -235,6 +243,8 @@ static const char alt_reg_names[][8] =
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/* Initialize the GCC target structure. */
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#undef TARGET_ATTRIBUTE_TABLE
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#define TARGET_ATTRIBUTE_TABLE rs6000_attribute_table
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#undef TARGET_SET_DEFAULT_TYPE_ATTRIBUTES
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#define TARGET_SET_DEFAULT_TYPE_ATTRIBUTES rs6000_set_default_type_attributes
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|
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#undef TARGET_ASM_ALIGNED_DI_OP
|
||||
#define TARGET_ASM_ALIGNED_DI_OP DOUBLE_INT_ASM_OP
|
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|
|
@ -546,6 +556,22 @@ rs6000_override_options (default_cpu)
|
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/* Handle -mvrsave= option. */
|
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rs6000_parse_vrsave_option ();
|
||||
|
||||
/* Handle -m(no-)longcall option. This is a bit of a cheap hack,
|
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using TARGET_OPTIONS to handle a toggle switch, but we're out of
|
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bits in target_flags so TARGET_SWITCHES cannot be used.
|
||||
Assumption here is that rs6000_longcall_switch points into the
|
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text of the complete option, rather than being a copy, so we can
|
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scan back for the presence or absence of the no- modifier. */
|
||||
if (rs6000_longcall_switch)
|
||||
{
|
||||
const char *base = rs6000_longcall_switch;
|
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while (base[-1] != 'm') base--;
|
||||
|
||||
if (*rs6000_longcall_switch != '\0')
|
||||
error ("invalid option `%s'", base);
|
||||
rs6000_default_long_calls = (base[0] != 'n');
|
||||
}
|
||||
|
||||
#ifdef TARGET_REGNAMES
|
||||
/* If the user desires alternate register names, copy in the
|
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alternate names now. */
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|
@ -2541,8 +2567,10 @@ init_cumulative_args (cum, fntype, libname, incoming)
|
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|
||||
cum->orig_nargs = cum->nargs_prototype;
|
||||
|
||||
/* Check for longcall's */
|
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if (fntype && lookup_attribute ("longcall", TYPE_ATTRIBUTES (fntype)))
|
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/* Check for a longcall attribute. */
|
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if (fntype
|
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&& lookup_attribute ("longcall", TYPE_ATTRIBUTES (fntype))
|
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&& !lookup_attribute ("shortcall", TYPE_ATTRIBUTES (fntype)))
|
||||
cum->call_cookie = CALL_LONG;
|
||||
|
||||
if (TARGET_DEBUG_ARG)
|
||||
|
|
@ -3565,6 +3593,8 @@ altivec_expand_unop_builtin (icode, arglist, target)
|
|||
return NULL_RTX;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if (target == 0
|
||||
|
|
@ -3654,6 +3684,8 @@ altivec_expand_binop_builtin (icode, arglist, target)
|
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return NULL_RTX;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if (target == 0
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|
|
@ -3828,6 +3860,8 @@ altivec_expand_ternop_builtin (icode, arglist, target)
|
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return NULL_RTX;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if (target == 0
|
||||
|
|
@ -9871,8 +9905,11 @@ output_mi_thunk (file, thunk_fndecl, delta, function)
|
|||
fname = XSTR (XEXP (DECL_RTL (function), 0), 0);
|
||||
|
||||
if (current_file_function_operand (XEXP (DECL_RTL (function), 0), VOIDmode)
|
||||
&& ! lookup_attribute ("longcall",
|
||||
TYPE_ATTRIBUTES (TREE_TYPE (function))))
|
||||
&& (! lookup_attribute ("longcall",
|
||||
TYPE_ATTRIBUTES (TREE_TYPE (function)))
|
||||
|| lookup_attribute ("shortcall",
|
||||
TYPE_ATTRIBUTES (TREE_TYPE (function)))))
|
||||
|
||||
{
|
||||
fprintf (file, "\tb %s", prefix);
|
||||
assemble_name (file, fname);
|
||||
|
|
@ -10852,12 +10889,13 @@ rs6000_initialize_trampoline (addr, fnaddr, cxt)
|
|||
const struct attribute_spec rs6000_attribute_table[] =
|
||||
{
|
||||
/* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */
|
||||
{ "longcall", 0, 0, false, true, true, rs6000_handle_longcall_attribute },
|
||||
{ NULL, 0, 0, false, false, false, NULL }
|
||||
{ "longcall", 0, 0, false, true, true, rs6000_handle_longcall_attribute },
|
||||
{ "shortcall", 0, 0, false, true, true, rs6000_handle_longcall_attribute },
|
||||
{ NULL, 0, 0, false, false, false, NULL }
|
||||
};
|
||||
|
||||
/* Handle a "longcall" attribute; arguments as in struct
|
||||
attribute_spec.handler. */
|
||||
/* Handle a "longcall" or "shortcall" attribute; arguments as in
|
||||
struct attribute_spec.handler. */
|
||||
|
||||
static tree
|
||||
rs6000_handle_longcall_attribute (node, name, args, flags, no_add_attrs)
|
||||
|
|
@ -10879,6 +10917,20 @@ rs6000_handle_longcall_attribute (node, name, args, flags, no_add_attrs)
|
|||
return NULL_TREE;
|
||||
}
|
||||
|
||||
/* Set longcall attributes on all functions declared when
|
||||
rs6000_default_long_calls is true. */
|
||||
static void
|
||||
rs6000_set_default_type_attributes (type)
|
||||
tree type;
|
||||
{
|
||||
if (rs6000_default_long_calls
|
||||
&& (TREE_CODE (type) == FUNCTION_TYPE
|
||||
|| TREE_CODE (type) == METHOD_TYPE))
|
||||
TYPE_ATTRIBUTES (type) = tree_cons (get_identifier ("longcall"),
|
||||
NULL_TREE,
|
||||
TYPE_ATTRIBUTES (type));
|
||||
}
|
||||
|
||||
/* Return a reference suitable for calling a function with the
|
||||
longcall attribute. */
|
||||
|
||||
|
|
|
|||
|
|
@ -432,6 +432,9 @@ extern enum processor_type rs6000_cpu;
|
|||
N_("Specify size of long double (64 or 128 bits)") }, \
|
||||
{"vrsave=", &rs6000_altivec_vrsave_string, \
|
||||
N_("Specify yes/no if VRSAVE instructions should be generated for AltiVec") }, \
|
||||
{"longcall", &rs6000_longcall_switch, \
|
||||
N_("Avoid all range limits on call instructions") }, \
|
||||
{"no-longcall", &rs6000_longcall_switch, "" }, \
|
||||
SUBTARGET_OPTIONS \
|
||||
}
|
||||
|
||||
|
|
@ -462,6 +465,8 @@ extern int rs6000_long_double_type_size;
|
|||
extern int rs6000_altivec_abi;
|
||||
extern const char *rs6000_altivec_vrsave_string;
|
||||
extern int rs6000_altivec_vrsave;
|
||||
extern const char *rs6000_longcall_switch;
|
||||
extern int rs6000_default_long_calls;
|
||||
|
||||
#define TARGET_LONG_DOUBLE_128 (rs6000_long_double_type_size == 128)
|
||||
#define TARGET_ALTIVEC_ABI rs6000_altivec_abi
|
||||
|
|
@ -483,6 +488,11 @@ extern int rs6000_altivec_vrsave;
|
|||
/* Define this to change the optimizations performed by default. */
|
||||
#define OPTIMIZATION_OPTIONS(LEVEL,SIZE) optimization_options(LEVEL,SIZE)
|
||||
|
||||
/* Target pragma. */
|
||||
#define REGISTER_TARGET_PRAGMAS(PFILE) do { \
|
||||
cpp_register_pragma (PFILE, 0, "longcall", rs6000_pragma_longcall); \
|
||||
} while (0)
|
||||
|
||||
/* Show we can debug even without a frame pointer. */
|
||||
#define CAN_DEBUG_WITHOUT_FP
|
||||
|
||||
|
|
|
|||
|
|
@ -10036,68 +10036,89 @@
|
|||
;; operands[2] is the value FUNCTION_ARG returns for the VOID argument
|
||||
;; which indicates how to set cr1
|
||||
|
||||
(define_insn "*call_nonlocal_sysv"
|
||||
[(call (mem:SI (match_operand:SI 0 "call_operand" "cl,cl,s,s"))
|
||||
(match_operand 1 "" "g,g,g,g"))
|
||||
(use (match_operand:SI 2 "immediate_operand" "O,n,O,n"))
|
||||
(clobber (match_scratch:SI 3 "=l,l,l,l"))]
|
||||
(define_insn "*call_indirect_nonlocal_sysv"
|
||||
[(call (mem:SI (match_operand:SI 0 "register_operand" "cl,cl"))
|
||||
(match_operand 1 "" "g,g"))
|
||||
(use (match_operand:SI 2 "immediate_operand" "O,n"))
|
||||
(clobber (match_scratch:SI 3 "=l,l"))]
|
||||
"DEFAULT_ABI == ABI_AIX_NODESC
|
||||
|| DEFAULT_ABI == ABI_V4
|
||||
|| DEFAULT_ABI == ABI_DARWIN"
|
||||
"*
|
||||
{
|
||||
if (INTVAL (operands[2]) & CALL_V4_SET_FP_ARGS)
|
||||
output_asm_insn (\"crxor 6,6,6\", operands);
|
||||
output_asm_insn ("crxor 6,6,6", operands);
|
||||
|
||||
else if (INTVAL (operands[2]) & CALL_V4_CLEAR_FP_ARGS)
|
||||
output_asm_insn (\"creqv 6,6,6\", operands);
|
||||
output_asm_insn ("creqv 6,6,6", operands);
|
||||
|
||||
switch (which_alternative)
|
||||
{
|
||||
default:
|
||||
abort ();
|
||||
case 0:
|
||||
case 1:
|
||||
return \"b%T0l\";
|
||||
case 2:
|
||||
case 3:
|
||||
return (DEFAULT_ABI == ABI_V4 && flag_pic) ? \"bl %z0@plt\" : \"bl %z0\";
|
||||
}
|
||||
}"
|
||||
[(set_attr "type" "jmpreg,jmpreg,branch,branch")
|
||||
(set_attr "length" "4,8,4,8")])
|
||||
return "b%T0l";
|
||||
}
|
||||
[(set_attr "type" "jmpreg,jmpreg")
|
||||
(set_attr "length" "4,8")])
|
||||
|
||||
(define_insn "*call_nonlocal_sysv"
|
||||
[(call (mem:SI (match_operand:SI 0 "symbol_ref_operand" "s,s"))
|
||||
(match_operand 1 "" "g,g"))
|
||||
(use (match_operand:SI 2 "immediate_operand" "O,n"))
|
||||
(clobber (match_scratch:SI 3 "=l,l"))]
|
||||
"(DEFAULT_ABI == ABI_AIX_NODESC
|
||||
|| DEFAULT_ABI == ABI_V4
|
||||
|| DEFAULT_ABI == ABI_DARWIN)
|
||||
&& (INTVAL (operands[2]) & CALL_LONG) == 0"
|
||||
{
|
||||
if (INTVAL (operands[2]) & CALL_V4_SET_FP_ARGS)
|
||||
output_asm_insn ("crxor 6,6,6", operands);
|
||||
|
||||
else if (INTVAL (operands[2]) & CALL_V4_CLEAR_FP_ARGS)
|
||||
output_asm_insn ("creqv 6,6,6", operands);
|
||||
|
||||
return (DEFAULT_ABI == ABI_V4 && flag_pic) ? "bl %z0@plt" : "bl %z0";
|
||||
}
|
||||
[(set_attr "type" "branch,branch")
|
||||
(set_attr "length" "4,8")])
|
||||
|
||||
(define_insn "*call_value_indirect_nonlocal_sysv"
|
||||
[(set (match_operand 0 "" "")
|
||||
(call (mem:SI (match_operand:SI 1 "register_operand" "cl,cl"))
|
||||
(match_operand 2 "" "g,g")))
|
||||
(use (match_operand:SI 3 "immediate_operand" "O,n"))
|
||||
(clobber (match_scratch:SI 4 "=l,l"))]
|
||||
"DEFAULT_ABI == ABI_AIX_NODESC
|
||||
|| DEFAULT_ABI == ABI_V4
|
||||
|| DEFAULT_ABI == ABI_DARWIN"
|
||||
{
|
||||
if (INTVAL (operands[3]) & CALL_V4_SET_FP_ARGS)
|
||||
output_asm_insn ("crxor 6,6,6", operands);
|
||||
|
||||
else if (INTVAL (operands[3]) & CALL_V4_CLEAR_FP_ARGS)
|
||||
output_asm_insn ("creqv 6,6,6", operands);
|
||||
|
||||
return "b%T1l";
|
||||
}
|
||||
[(set_attr "type" "jmpreg,jmpreg")
|
||||
(set_attr "length" "4,8")])
|
||||
|
||||
(define_insn "*call_value_nonlocal_sysv"
|
||||
[(set (match_operand 0 "" "")
|
||||
(call (mem:SI (match_operand:SI 1 "call_operand" "cl,cl,s,s"))
|
||||
(match_operand 2 "" "g,g,g,g")))
|
||||
(use (match_operand:SI 3 "immediate_operand" "O,n,O,n"))
|
||||
(clobber (match_scratch:SI 4 "=l,l,l,l"))]
|
||||
"DEFAULT_ABI == ABI_AIX_NODESC
|
||||
|| DEFAULT_ABI == ABI_V4
|
||||
|| DEFAULT_ABI == ABI_DARWIN"
|
||||
"*
|
||||
(call (mem:SI (match_operand:SI 1 "symbol_ref_operand" "s,s"))
|
||||
(match_operand 2 "" "g,g")))
|
||||
(use (match_operand:SI 3 "immediate_operand" "O,n"))
|
||||
(clobber (match_scratch:SI 4 "=l,l"))]
|
||||
"(DEFAULT_ABI == ABI_AIX_NODESC
|
||||
|| DEFAULT_ABI == ABI_V4
|
||||
|| DEFAULT_ABI == ABI_DARWIN)
|
||||
&& (INTVAL (operands[3]) & CALL_LONG) == 0"
|
||||
{
|
||||
if (INTVAL (operands[3]) & CALL_V4_SET_FP_ARGS)
|
||||
output_asm_insn (\"crxor 6,6,6\", operands);
|
||||
output_asm_insn ("crxor 6,6,6", operands);
|
||||
|
||||
else if (INTVAL (operands[3]) & CALL_V4_CLEAR_FP_ARGS)
|
||||
output_asm_insn (\"creqv 6,6,6\", operands);
|
||||
output_asm_insn ("creqv 6,6,6", operands);
|
||||
|
||||
switch (which_alternative)
|
||||
{
|
||||
default:
|
||||
abort ();
|
||||
case 0:
|
||||
case 1:
|
||||
return \"b%T1l\";
|
||||
case 2:
|
||||
case 3:
|
||||
return (DEFAULT_ABI == ABI_V4 && flag_pic) ? \"bl %z1@plt\" : \"bl %z1\";
|
||||
}
|
||||
}"
|
||||
[(set_attr "type" "jmpreg,jmpreg,branch,branch")
|
||||
(set_attr "length" "4,8,4,8")])
|
||||
return (DEFAULT_ABI == ABI_V4 && flag_pic) ? "bl %z1@plt" : "bl %z1";
|
||||
}
|
||||
[(set_attr "type" "branch,branch")
|
||||
(set_attr "length" "4,8")])
|
||||
|
||||
;; Call subroutine returning any type.
|
||||
(define_expand "untyped_call"
|
||||
|
|
|
|||
4
gcc/config/rs6000/t-rs6000-c-rule
Normal file
4
gcc/config/rs6000/t-rs6000-c-rule
Normal file
|
|
@ -0,0 +1,4 @@
|
|||
rs6000-c.o: $(srcdir)/config/rs6000/rs6000-c.c \
|
||||
$(srcdir)/config/rs6000/rs6000-protos.h \
|
||||
$(CONFIG_H) $(SYSTEM_H) $(TREE_H) $(CPPLIB_H) $(TM_P_H) c-lex.h errors.h
|
||||
$(CC) -c $(ALL_CFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
|
||||
|
|
@ -2273,12 +2273,17 @@ useful to override the effects of the @option{-mrtd} switch.
|
|||
The PowerPC compiler for Windows NT currently ignores the @code{cdecl}
|
||||
attribute.
|
||||
|
||||
@item longcall
|
||||
@item longcall/shortcall
|
||||
@cindex functions called via pointer on the RS/6000 and PowerPC
|
||||
On the RS/6000 and PowerPC, the @code{longcall} attribute causes the
|
||||
compiler to always call the function via a pointer, so that functions
|
||||
which reside further than 64 megabytes (67,108,864 bytes) from the
|
||||
current location can be called.
|
||||
compiler to always call this function via a pointer, just as it would if
|
||||
the @option{-mlongcall} option had been specified. The @code{shortcall}
|
||||
attribute causes the compiler not to do this. These attributes override
|
||||
both the @option{-mlongcall} switch and the @code{#pragma longcall}
|
||||
setting.
|
||||
|
||||
@xref{RS/6000 and PowerPC Options}, for more information on when long
|
||||
calls are and are not necessary.
|
||||
|
||||
@item long_call/short_call
|
||||
@cindex indirect calls on ARM
|
||||
|
|
@ -5992,6 +5997,7 @@ for further explanation.
|
|||
|
||||
@menu
|
||||
* ARM Pragmas::
|
||||
* RS/6000 and PowerPC Pragmas::
|
||||
* Darwin Pragmas::
|
||||
* Solaris Pragmas::
|
||||
* Tru64 Pragmas::
|
||||
|
|
@ -6020,6 +6026,27 @@ Do not affect the @code{long_call} or @code{short_call} attributes of
|
|||
subsequent functions.
|
||||
@end table
|
||||
|
||||
@node RS/6000 and PowerPC Pragmas
|
||||
@subsection RS/6000 and PowerPC Pragmas
|
||||
|
||||
The RS/6000 and PowerPC targets define one pragma for controlling
|
||||
whether or not the @code{longcall} attribute is added to function
|
||||
declarations by default. This pragma overrides the @option{-mlongcall}
|
||||
option, but not the @code{longcall} and @code{shortcall} attributes.
|
||||
@xref{RS/6000 and PowerPC Options}, for more information about when long
|
||||
calls are and are not necessary.
|
||||
|
||||
@table @code
|
||||
@item longcall (1)
|
||||
@cindex pragma, longcall
|
||||
Apply the @code{longcall} attribute to all subsequent function
|
||||
declarations.
|
||||
|
||||
@item longcall (0)
|
||||
Do not apply the @code{longcall} attribute to subsequent function
|
||||
declarations.
|
||||
@end table
|
||||
|
||||
@c Describe c4x pragmas here.
|
||||
@c Describe h8300 pragmas here.
|
||||
@c Describe i370 pragmas here.
|
||||
|
|
|
|||
|
|
@ -6817,6 +6817,24 @@ All modules should be compiled with the same @option{-G @var{num}} value.
|
|||
On System V.4 and embedded PowerPC systems do (do not) emit register
|
||||
names in the assembly language output using symbolic forms.
|
||||
|
||||
@item -mlongcall
|
||||
@itemx -mno-longcall
|
||||
@opindex mlongcall
|
||||
@opindex mno-longcall
|
||||
Default to making all function calls via pointers, so that functions
|
||||
which reside further than 64 megabytes (67,108,864 bytes) from the
|
||||
current location can be called. This setting can be overridden by the
|
||||
@code{shortcall} function attribute, or by @code{#pragma longcall(0)}.
|
||||
|
||||
Some linkers are capable of detecting out-of-range calls and generating
|
||||
glue code on the fly. On these systems, long calls are unnecessary and
|
||||
generate slower code. As of this writing, the AIX linker can do this,
|
||||
as can the GNU linker for PowerPC/64. It is planned to add this feature
|
||||
to the GNU linker for 32-bit PowerPC systems as well.
|
||||
|
||||
In the future, we may cause GCC to ignore all longcall specifications
|
||||
when the linker is known to generate glue.
|
||||
|
||||
@item -pthread
|
||||
@opindex pthread
|
||||
Adds support for multithreading with the @dfn{pthreads} library.
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue