diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/strncmp.c')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strncmp.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/strncmp.c b/sysdeps/x86_64/multiarch/strncmp.c index 0d2d657a36..02b6d0b6f5 100644 --- a/sysdeps/x86_64/multiarch/strncmp.c +++ b/sysdeps/x86_64/multiarch/strncmp.c @@ -29,12 +29,18 @@ extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (ssse3) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (sse42) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2) attribute_hidden; static inline void * IFUNC_SELECTOR (void) { const struct cpu_features* cpu_features = __get_cpu_features (); + if (!CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER) + && CPU_FEATURES_ARCH_P (cpu_features, AVX2_Usable) + && CPU_FEATURES_ARCH_P (cpu_features, AVX_Fast_Unaligned_Load)) + return OPTIMIZE (avx2); + if (CPU_FEATURES_CPU_P (cpu_features, SSE4_2) && !CPU_FEATURES_ARCH_P (cpu_features, Slow_SSE4_2)) return OPTIMIZE (sse42); |