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| author | Uros Bizjak <uros@gcc.gnu.org> | 2012-07-03 09:24:10 +0200 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2012-07-03 09:24:10 +0200 |
| commit | 68a12ef35b38746594c034a71d74dd6d68b775c0 (patch) | |
| tree | 8849e6d14281c455d4dfeb286d419086995bcc7f /libitm | |
| parent | 43283548c184deca6ba9df2f31fe38e9a12738f2 (diff) | |
| download | gcc-68a12ef35b38746594c034a71d74dd6d68b775c0.tar.gz | |
xmmintrin.h (_mm_sfence): Use __builtin_ia32_pause.
gcc/
2012-07-03 Uros Bizjak <ubizjak@gmail.com>
* config/i386/xmmintrin.h (_mm_sfence): Use __builtin_ia32_pause.
libgomp/
2012-07-03 Uros Bizjak <ubizjak@gmail.com>
* config/linux/x86/futex.h (cpu_relax): Use __builtin_ia32_pause.
* testsuite/libgomp.c/sort-1.c (busy_wait): Ditto.
libitm/
2012-07-03 Uros Bizjak <ubizjak@gmail.com>
* config/x86/target.h (cpu_relax): Use __builtin_ia32_pause.
From-SVN: r189194
Diffstat (limited to 'libitm')
| -rw-r--r-- | libitm/ChangeLog | 4 | ||||
| -rw-r--r-- | libitm/config/x86/target.h | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/libitm/ChangeLog b/libitm/ChangeLog index 0ccdf42c592..2d10d5e8f97 100644 --- a/libitm/ChangeLog +++ b/libitm/ChangeLog @@ -1,3 +1,7 @@ +2012-07-31 Uros Bizjak <ubizjak@gmail.com> + + * config/x86/target.h (cpu_relax): Use __builtin_ia32_pause. + 2012-05-21 Patrick Marlier <patrick.marlier@gmail.com> * eh_cpp.cc: Fix __cxa_end_catch declaration. diff --git a/libitm/config/x86/target.h b/libitm/config/x86/target.h index 5c7e6fbee88..73b6585ae70 100644 --- a/libitm/config/x86/target.h +++ b/libitm/config/x86/target.h @@ -63,7 +63,7 @@ typedef struct gtm_jmpbuf static inline void cpu_relax (void) { - __asm volatile ("rep; nop" : : : "memory"); + __builtin_ia32_pause (); } } // namespace GTM |