diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S b/sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S index 0d691b78a8..33c18a28e8 100644 --- a/sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S +++ b/sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S @@ -16,11 +16,20 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> -#include "sysdep.h" +/* Continue building as ISA level 2. We use this as ISA V2 default + because strcmp-sse42 uses pcmpstri (slow on some SSE4.2 + processors) and this implementation is potenially faster than + strcmp-sse42 (aside from the slower page cross case). */ +#if ISA_SHOULD_BUILD (2) -ENTRY ( __strcmp_sse2_unaligned) +# define STRCMP_ISA _sse2_unaligned +# include "strcmp-naming.h" + +# include "sysdep.h" + +ENTRY (STRCMP) movl %edi, %eax xorl %edx, %edx pxor %xmm7, %xmm7 @@ -208,6 +217,5 @@ L(cross_page): L(different): subl %ecx, %eax ret -END (__strcmp_sse2_unaligned) - +END (STRCMP) #endif |