diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/i386/xmmintrin.h | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 392dbce..8f0d5ec 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2012-07-03 Uros Bizjak <ubizjak@gmail.com> + + * config/i386/xmmintrin.h (_mm_sfence): Use __builtin_ia32_pause. + 2012-07-03 Roland McGrath <mcgrathr@google.com> * configure.ac (HAVE_AS_IX86_REP_LOCK_PREFIX): Also require that the diff --git a/gcc/config/i386/xmmintrin.h b/gcc/config/i386/xmmintrin.h index 5aefa9d..b3a8c3e 100644 --- a/gcc/config/i386/xmmintrin.h +++ b/gcc/config/i386/xmmintrin.h @@ -1225,7 +1225,7 @@ _mm_sfence (void) extern __inline void __attribute__((__gnu_inline__, __always_inline__, __artificial__)) _mm_pause (void) { - __asm__ __volatile__ ("rep; nop" : : ); + __builtin_ia32_pause (); } /* Transpose the 4x4 matrix composed of row[0-3]. */ |