diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/ifunc-memset.h')
| -rw-r--r-- | sysdeps/x86_64/multiarch/ifunc-memset.h | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/sysdeps/x86_64/multiarch/ifunc-memset.h b/sysdeps/x86_64/multiarch/ifunc-memset.h index c98d7577fc..7e7e9dcec1 100644 --- a/sysdeps/x86_64/multiarch/ifunc-memset.h +++ b/sysdeps/x86_64/multiarch/ifunc-memset.h @@ -27,6 +27,10 @@ extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2_unaligned_erms) extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_unaligned) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_unaligned_erms) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (evex_unaligned) + attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (evex_unaligned_erms) + attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (avx512_unaligned) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (avx512_unaligned_erms) @@ -56,10 +60,22 @@ IFUNC_SELECTOR (void) if (CPU_FEATURES_ARCH_P (cpu_features, AVX2_Usable)) { - if (CPU_FEATURES_CPU_P (cpu_features, ERMS)) - return OPTIMIZE (avx2_unaligned_erms); - else - return OPTIMIZE (avx2_unaligned); + if (CPU_FEATURES_ARCH_P (cpu_features, AVX512VL_Usable) + && CPU_FEATURES_ARCH_P (cpu_features, AVX512BW_Usable)) + { + if (CPU_FEATURES_CPU_P (cpu_features, ERMS)) + return OPTIMIZE (evex_unaligned_erms); + + return OPTIMIZE (evex_unaligned); + } + + if (!CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER)) + { + if (CPU_FEATURES_CPU_P (cpu_features, ERMS)) + return OPTIMIZE (avx2_unaligned_erms); + + return OPTIMIZE (avx2_unaligned); + } } if (CPU_FEATURES_CPU_P (cpu_features, ERMS)) |