diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/ifunc-memcmp.h')
| -rw-r--r-- | sysdeps/x86_64/multiarch/ifunc-memcmp.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/sysdeps/x86_64/multiarch/ifunc-memcmp.h b/sysdeps/x86_64/multiarch/ifunc-memcmp.h index bf5ab8eb7f..34e0a1295f 100644 --- a/sysdeps/x86_64/multiarch/ifunc-memcmp.h +++ b/sysdeps/x86_64/multiarch/ifunc-memcmp.h @@ -23,17 +23,24 @@ extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (ssse3) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (sse4_1) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_movbe) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (evex_movbe) 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) + if (CPU_FEATURES_ARCH_P (cpu_features, AVX2_Usable) && CPU_FEATURES_CPU_P (cpu_features, MOVBE) && CPU_FEATURES_ARCH_P (cpu_features, AVX_Fast_Unaligned_Load)) - return OPTIMIZE (avx2_movbe); + { + if (CPU_FEATURES_ARCH_P (cpu_features, AVX512VL_Usable) + && CPU_FEATURES_ARCH_P (cpu_features, AVX512BW_Usable)) + return OPTIMIZE (evex_movbe); + + if (!CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER)) + return OPTIMIZE (avx2_movbe); + } if (CPU_FEATURES_CPU_P (cpu_features, SSE4_1)) return OPTIMIZE (sse4_1); |