i386.c (ix86_frame_pointer_required): New.
* config/i386/i386.c (ix86_frame_pointer_required): New.
(ix86_setup_frame_addresses): New.
(struct machine_funciton): Add accesses_prev_frame.
* config/i386/i386.h (FRAME_POINTER_REQUIRED): Call
ix86_frame_pointer_required.
(SUBTARGET_FRAME_POINTER_REQUIRED): New.
(SETUP_FRAME_ADDRESSES): New.
* config/i386/i386-protos.h: Update.
* config/i386/sco5.h (SUBTARGET_FRAME_POINTER_REQUIRED): Rename
from FRAME_POINTER_REQUIRED.
* config/i386/svr3gas.h: Likewise.
* config/i386/sysv3.h: Likewise.
* config/i386/v3gas.h: Likewise.
From-SVN: r39545
This commit is contained in:
Richard Henderson
parent
0020b823d6
commit
6fca22eb3b
120
gcc/ChangeLog
120
gcc/ChangeLog
@ -1,3 +1,19 @@
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2001-02-08 Richard Henderson <rth@redhat.com>
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* config/i386/i386.c (ix86_frame_pointer_required): New.
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(ix86_setup_frame_addresses): New.
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(struct machine_funciton): Add accesses_prev_frame.
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* config/i386/i386.h (FRAME_POINTER_REQUIRED): Call
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ix86_frame_pointer_required.
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(SUBTARGET_FRAME_POINTER_REQUIRED): New.
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(SETUP_FRAME_ADDRESSES): New.
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* config/i386/i386-protos.h: Update.
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* config/i386/sco5.h (SUBTARGET_FRAME_POINTER_REQUIRED): Rename
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from FRAME_POINTER_REQUIRED.
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* config/i386/svr3gas.h: Likewise.
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* config/i386/sysv3.h: Likewise.
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* config/i386/v3gas.h: Likewise.
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2001-02-08 Richard Henderson <rth@redhat.com>
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* config/sparc/sparc.c (function_arg_record_value_3): Fix
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@ -91,19 +107,19 @@ Thu Feb 8 11:21:28 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
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2001-01-30 Bruce Korb <bkorb@gnu.org>
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fixinc/fixincl.c(process): Emit error message only if appropriate :)
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(load_file): do not rely on load_file_data() to close file pointer
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fixinc/fixlib.c(load_file_data): do not close passed in file pointer
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fixinc/fixincl.c(process): Emit error message only if appropriate :)
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(load_file): do not rely on load_file_data() to close file pointer
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fixinc/fixlib.c(load_file_data): do not close passed in file pointer
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fixinc/inclhack.def(irix_limits_const): add test_text
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2001-02-06 Neil Booth <neil@daikokuya.demon.co.uk>
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* cppexp.c (parse_defined): Improve diagnostics for invalid
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syntax.
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* cppexp.c (parse_defined): Improve diagnostics for invalid
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syntax.
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2001-02-06 Neil Booth <neil@daikokuya.demon.co.uk>
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* cppmacro.c (cpp_get_token): Avoid pasting after a builtin.
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* cppmacro.c (cpp_get_token): Avoid pasting after a builtin.
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2001-02-06 Mark Mitchell <mark@codesourcery.com>
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@ -155,13 +171,13 @@ Mon Feb 5 21:56:16 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
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2001-02-05 Chandrakala Chavva <cchavva@redhat.com>
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* final.c: Move the declaration of profile_label_no to ...
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* output.h: ... here.
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* function.c (expand_function_start): Call PROFILE_HOOK.
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* config/rs6000/aix.h: Define PROFILE_HOOK.
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* config/rs6000/rs6000-protos.h: output_profile_hook new.
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* config/rs6000/rs6000.c (output_profile_hook): Define.
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(output_prolog): Do nothing for ABI_AIX as it is taken care by
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output_profile_hook.
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* output.h: ... here.
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* function.c (expand_function_start): Call PROFILE_HOOK.
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* config/rs6000/aix.h: Define PROFILE_HOOK.
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* config/rs6000/rs6000-protos.h: output_profile_hook new.
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* config/rs6000/rs6000.c (output_profile_hook): Define.
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(output_prolog): Do nothing for ABI_AIX as it is taken care by
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output_profile_hook.
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tm.texi : Explain new macro PROFILE_HOOK.
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2001-02-06 Hans-Peter Nilsson <hp@axis.com>
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@ -176,7 +192,7 @@ Mon Feb 5 21:56:16 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
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* Makefile.in (gcc_gxx_target_include_dir): Use $(target_alias).
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2001-02-05 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
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David Edelsohn <edelsohn@gnu.org>
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David Edelsohn <edelsohn@gnu.org>
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* config/rs6000/rs6000.c (rs6000_return_addr): Use PIC
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code for AIX, even without flag_pic.
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@ -317,13 +333,13 @@ Sun Feb 4 15:52:44 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
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2001-02-03 Neil Booth <neil@daikokuya.demon.co.uk>
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* cpphash.h: Rename _ALIGN POOL_ALIGN.
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* cpplex.c (new_chunk, _cpp_pool_reserve): Update.
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* cpphash.h: Rename _ALIGN POOL_ALIGN.
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* cpplex.c (new_chunk, _cpp_pool_reserve): Update.
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2001-02-03 Neil Booth <neil@daikokuya.demon.co.uk>
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* cpphash.h: Rename ALIGN _ALIGN.
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* cpplex.c (new_chunk, _cpp_pool_reserve): Update.
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* cpphash.h: Rename ALIGN _ALIGN.
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* cpplex.c (new_chunk, _cpp_pool_reserve): Update.
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Fri Feb 2 23:15:29 2001 Christopher Faylor <cgf@cygnus.com>
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@ -433,16 +449,16 @@ Fri Feb 2 20:03:50 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
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2001-02-01 Neil Booth <neil@daikokuya.demon.co.uk>
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* cpphash.h (struct cpp_buffer): Move saved_flags from cpp_reader.
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* cpplex.c (_cpp_lex_token): New token picks up the saved flags,
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and AVOID_LPASTE is cleared on meeting an unescaped newline.
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* cppmacro.c (builtin_macro): Set builtin flags here.
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(paste_all_tokens): Preserve AVOID_LPASTE on pasted token.
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(replace_args): Clarify intent.
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(cpp_get_token): Macro expansion tokens get the saved flags.
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Update.
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* cppmain.c (scan_buffer): Remove now-redundant print.printed
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check.
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* cpphash.h (struct cpp_buffer): Move saved_flags from cpp_reader.
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* cpplex.c (_cpp_lex_token): New token picks up the saved flags,
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and AVOID_LPASTE is cleared on meeting an unescaped newline.
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* cppmacro.c (builtin_macro): Set builtin flags here.
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(paste_all_tokens): Preserve AVOID_LPASTE on pasted token.
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(replace_args): Clarify intent.
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(cpp_get_token): Macro expansion tokens get the saved flags.
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Update.
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* cppmain.c (scan_buffer): Remove now-redundant print.printed
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check.
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2001-02-01 Jeffrey Oldham <oldham@codesourcery.com>
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@ -520,14 +536,14 @@ Thu Feb 1 07:22:41 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
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2001-01-31 Neil Booth <neil@daikokuya.demon.co.uk>
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* cpplib.c (T_ELIF): Move to STDC89, not that it matters.
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(_cpp_handle_directive): Suggest not using #elif with -Wtraditional.
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* cpplib.c (T_ELIF): Move to STDC89, not that it matters.
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(_cpp_handle_directive): Suggest not using #elif with -Wtraditional.
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2001-01-31 Neil Booth <neil@daikokuya.demon.co.uk>
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* cpphash.h (struct cpp_reader): New saved_flags.
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* cppmacro.c (cpp_get_token): Use saved_flags to remember
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to avoid a paste after a pasted token.
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* cpphash.h (struct cpp_reader): New saved_flags.
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* cppmacro.c (cpp_get_token): Use saved_flags to remember
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to avoid a paste after a pasted token.
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2001-01-31 Alexandre Oliva <aoliva@redhat.com>
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@ -568,10 +584,10 @@ Thu Feb 1 07:22:41 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
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2001-01-30 Neil Booth <neil@daikokuya.demon.co.uk>
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* c-decl.c (c_expand_body): Check TYPE_SIZE_UNIT (ret_type)
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is not NULL.
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* toplev.c (decode_W_option): Update warn_larger_than
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unconditionally for each processed switch.
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* c-decl.c (c_expand_body): Check TYPE_SIZE_UNIT (ret_type)
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is not NULL.
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* toplev.c (decode_W_option): Update warn_larger_than
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unconditionally for each processed switch.
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2001-01-30 John David Anglin <dave@hiauly1.hia.nrc.ca>
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@ -585,7 +601,7 @@ Thu Feb 1 07:22:41 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
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2001-01-29 lars brinkhoff <lars@nocrew.org>
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* tm.texi (PUSH_ROUNDING): Remove duplicate lines.
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* tm.texi (PUSH_ROUNDING): Remove duplicate lines.
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2001-01-29 John David Anglin <dave@hiauly1.hia.nrc.ca>
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Jeff Law <law@redhat.com>
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@ -632,8 +648,8 @@ Mon Jan 29 20:38:19 2001 Christopher Faylor <cgf@cygnus.com>
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2001-01-29 Neil Booth <neil@daikokuya.demon.co.uk>
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* cpplib.c (T_BAD_DIRECTIVE): Remove.
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(_cpp_init_stacks): Loop from 0 to N_DIRECTIVES - 1.
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* cpplib.c (T_BAD_DIRECTIVE): Remove.
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(_cpp_init_stacks): Loop from 0 to N_DIRECTIVES - 1.
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2001-01-29 Joseph S. Myers <jsm28@cam.ac.uk>
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@ -668,18 +684,18 @@ Mon Jan 29 20:38:19 2001 Christopher Faylor <cgf@cygnus.com>
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2001-01-28 Neil Booth <neil@daikokuya.demon.co.uk>
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* cpphash.c (_cpp_cleanup_hashtable, _cpp_lookup_with_hash)
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: Don't set fe_value.
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* cpplib.h (AVOID_LPASTE): New flag.
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(struct cpp_hashnode): Remove fe_value.
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* cpplex.c (cpp_avoid_paste): Don't paste '.' with a number.
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* cppmacro.c (builtin_macro): Don't set flags here.
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(replace_args): Set AVOID_LPASTE flag on first token of an
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argument, and the token following it.
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(cpp_get_token): Set AVOID_LPASTE flag on first token of a
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macro expansion, and on the token following it. Do it for
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builtins too.
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* cppmain.c (scan_buffer): Avoid pasting only flagged tokens.
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* cpphash.c (_cpp_cleanup_hashtable, _cpp_lookup_with_hash)
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: Don't set fe_value.
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* cpplib.h (AVOID_LPASTE): New flag.
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(struct cpp_hashnode): Remove fe_value.
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* cpplex.c (cpp_avoid_paste): Don't paste '.' with a number.
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* cppmacro.c (builtin_macro): Don't set flags here.
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(replace_args): Set AVOID_LPASTE flag on first token of an
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argument, and the token following it.
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(cpp_get_token): Set AVOID_LPASTE flag on first token of a
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macro expansion, and on the token following it. Do it for
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builtins too.
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* cppmain.c (scan_buffer): Avoid pasting only flagged tokens.
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2001-01-27 Richard Henderson <rth@redhat.com>
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@ -25,6 +25,8 @@ extern void order_regs_for_local_alloc PARAMS ((void));
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extern void optimization_options PARAMS ((int, int));
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extern int ix86_can_use_return_insn_p PARAMS ((void));
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extern int ix86_frame_pointer_required PARAMS ((void));
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extern void ix86_setup_frame_addresses PARAMS ((void));
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extern void ix86_asm_file_end PARAMS ((FILE *));
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extern void load_pic_register PARAMS ((void));
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@ -331,6 +331,7 @@ struct rtx_def *ix86_compare_op1 = NULL_RTX;
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struct machine_function
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{
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rtx stack_locals[(int) MAX_MACHINE_MODE][MAX_386_STACK_LOCALS];
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int accesses_prev_frame;
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};
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#define ix86_stack_locals (cfun->machine->stack_locals)
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@ -1700,6 +1701,40 @@ ix86_can_use_return_insn_p ()
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tsize = ix86_compute_frame_size (get_frame_size (), &nregs, NULL, NULL);
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return tsize == 0 && nregs == 0;
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}
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/* Value should be nonzero if functions must have frame pointers.
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Zero means the frame pointer need not be set up (and parms may
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be accessed via the stack pointer) in functions that seem suitable. */
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int
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ix86_frame_pointer_required ()
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{
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/* If we accessed previous frames, then the generated code expects
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to be able to access the saved ebp value in our frame. */
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if (cfun->machine->accesses_prev_frame)
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return 1;
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/* Several x86 os'es need a frame pointer for other reasons,
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usually pertaining to setjmp. */
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if (SUBTARGET_FRAME_POINTER_REQUIRED)
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return 1;
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/* In override_options, TARGET_OMIT_LEAF_FRAME_POINTER turns off
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the frame pointer by default. Turn it back on now if we've not
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got a leaf function. */
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if (TARGET_OMIT_LEAF_FRAME_POINTER && ! leaf_function_p ())
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return 1;
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return 0;
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}
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/* Record that the current function accesses previous call frames. */
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void
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ix86_setup_frame_addresses ()
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{
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cfun->machine->accesses_prev_frame = 1;
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}
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static char pic_label_name[32];
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@ -852,7 +852,16 @@ extern int ix86_arch;
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Zero means the frame pointer need not be set up (and parms
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may be accessed via the stack pointer) in functions that seem suitable.
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This is computed in `reload', in reload1.c. */
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#define FRAME_POINTER_REQUIRED (TARGET_OMIT_LEAF_FRAME_POINTER && !leaf_function_p ())
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#define FRAME_POINTER_REQUIRED ix86_frame_pointer_required ()
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/* Override this in other tm.h files to cope with various OS losage
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requiring a frame pointer. */
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#ifndef SUBTARGET_FRAME_POINTER_REQUIRED
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#define SUBTARGET_FRAME_POINTER_REQUIRED 0
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#endif
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/* Make sure we can access arbitrary call frames. */
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#define SETUP_FRAME_ADDRESSES() ix86_setup_frame_addresses ()
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/* Base register for access to arguments of the function. */
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#define ARG_POINTER_REGNUM 16
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@ -632,8 +632,8 @@ dtors_section () \
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} \
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}
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#undef FRAME_POINTER_REQUIRED
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#define FRAME_POINTER_REQUIRED \
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#undef SUBTARGET_FRAME_POINTER_REQUIRED
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#define SUBTARGET_FRAME_POINTER_REQUIRED \
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((TARGET_ELF) ? 0 : \
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(current_function_calls_setjmp || current_function_calls_longjmp))
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@ -37,8 +37,8 @@ Boston, MA 02111-1307, USA. */
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Since a frame pointer will be required in such a function, it is OK
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that the stack pointer is not restored. */
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#undef FRAME_POINTER_REQUIRED
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#define FRAME_POINTER_REQUIRED \
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#undef SUBTARGET_FRAME_POINTER_REQUIRED
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#define SUBTARGET_FRAME_POINTER_REQUIRED \
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(current_function_calls_setjmp || current_function_calls_longjmp)
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/* Modify ASM_OUTPUT_LOCAL slightly to test -msvr3-shlib, adapted to gas */
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@ -78,8 +78,8 @@ Boston, MA 02111-1307, USA. */
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Since a frame pointer will be required in such a function, it is OK
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that the stack pointer is not restored. */
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#undef FRAME_POINTER_REQUIRED
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#define FRAME_POINTER_REQUIRED \
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#undef SUBTARGET_FRAME_POINTER_REQUIRED
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#define SUBTARGET_FRAME_POINTER_REQUIRED \
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(current_function_calls_setjmp || current_function_calls_longjmp)
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/* Modify ASM_OUTPUT_LOCAL slightly to test -msvr3-shlib. */
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@ -37,8 +37,8 @@ Boston, MA 02111-1307, USA. */
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Since a frame pointer will be required in such a function, it is OK
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that the stack pointer is not restored. */
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#undef FRAME_POINTER_REQUIRED
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#define FRAME_POINTER_REQUIRED \
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#undef SUBTARGET_FRAME_POINTER_REQUIRED
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#define SUBTARGET_FRAME_POINTER_REQUIRED \
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(current_function_calls_setjmp || current_function_calls_longjmp)
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/* Modify ASM_OUTPUT_LOCAL slightly to test -msvr3-shlib, adapted to gas */
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