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Enable -fomit-frame-pointer on darwin which support dwarf2.

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2010-08-13  Jack Howarth <howarth@bromo.med.uc.edu>

	* gcc/configure.ac: Enable -fomit-frame-pointer on darwin
	which support dwarf2.
	* config/i386/i386.c (override_options): Same.

From-SVN: r163227
This commit is contained in:
Jack Howarth 2010-08-13 17:06:42 +00:00 committed by H.J. Lu
parent 7d74619b73
commit 1b2d411828
4 changed files with 16 additions and 11 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2010-08-13 Jack Howarth <howarth@bromo.med.uc.edu>
* gcc/configure.ac: Enable -fomit-frame-pointer on darwin
which support dwarf2.
* config/i386/i386.c (override_options): Same.
2010-08-13 Jie Zhang <jie@codesourcery.com>
* config/arm/arm.md (cstoredf4): Only valid when

7
gcc/config/i386/i386.c
View File

@ -3276,9 +3276,8 @@ override_options (bool main_args_p)
{
if (flag_zee == 2)
flag_zee = 1;
/* Mach-O doesn't support omitting the frame pointer for now. */
if (flag_omit_frame_pointer == 2)
flag_omit_frame_pointer = (TARGET_MACHO ? 0 : 1);
flag_omit_frame_pointer = 1;
if (flag_asynchronous_unwind_tables == 2)
flag_asynchronous_unwind_tables = 1;
if (flag_pcc_struct_return == 2)
@ -3288,10 +3287,8 @@ override_options (bool main_args_p)
{
if (flag_zee == 2)
flag_zee = 0;
/* Mach-O doesn't support omitting the frame pointer for now. */
if (flag_omit_frame_pointer == 2)
flag_omit_frame_pointer =
(TARGET_MACHO ? 0 : !(USE_IX86_FRAME_POINTER || optimize_size));
flag_omit_frame_pointer = !(USE_IX86_FRAME_POINTER || optimize_size);
if (flag_asynchronous_unwind_tables == 2)
flag_asynchronous_unwind_tables = !USE_IX86_FRAME_POINTER;
if (flag_pcc_struct_return == 2)

9
gcc/configure vendored
View File

@ -10716,8 +10716,9 @@ if test "${enable_frame_pointer+set}" = set; then :
else
case $target_os in
linux*)
# Enable -fomit-frame-pointer by default for Linux.
linux* | darwin[8912]*)
# Enable -fomit-frame-pointer by default for Linux and Darwin with
# DWARF2.
enable_frame_pointer=no
;;
*)
@ -17129,7 +17130,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 17132 "configure"
#line 17133 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -17235,7 +17236,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 17238 "configure"
#line 17239 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H

5
gcc/configure.ac
View File

@ -1584,8 +1584,9 @@ AC_ARG_ENABLE(frame-pointer,
[ --enable-frame-pointer enable -fno-omit-frame-pointer by default for 32bit x86], [],
[
case $target_os in
linux*)
# Enable -fomit-frame-pointer by default for Linux.
linux* | darwin[[8912]]*)
# Enable -fomit-frame-pointer by default for Linux and Darwin with
# DWARF2.
enable_frame_pointer=no
;;
*)