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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-04-19 10:45:07 -0700 |
|---|---|---|
| committer | Sunil K Pandey <skpgkp2@gmail.com> | 2022-09-28 19:02:45 -0700 |
| commit | 286c89f8c7af058e5b788f634321eee99d9b1f04 (patch) | |
| tree | c62f96e2383da225b415d88871d4c52913679da7 /sysdeps/x86_64/multiarch/ifunc-avx2.h | |
| parent | d0aac8b4833c725d0682108066a210bbb7cf3bf4 (diff) | |
| download | glibc-286c89f8c7af058e5b788f634321eee99d9b1f04.tar.gz | |
x86-64: Require BMI2 for strchr-avx2.S [BZ #29611]
Since strchr-avx2.S updated by
commit 1f745ecc2109890886b161d4791e1406fdfc29b8
Author: noah <goldstein.w.n@gmail.com>
Date: Wed Feb 3 00:38:59 2021 -0500
x86-64: Refactor and improve performance of strchr-avx2.S
uses sarx:
c4 e2 72 f7 c0 sarx %ecx,%eax,%eax
for strchr-avx2 family functions, require BMI2 in ifunc-impl-list.c and
ifunc-avx2.h.
This fixes BZ #29611.
(cherry picked from commit 83c5b368226c34a2f0a5287df40fc290b2b34359)
Diffstat (limited to 'sysdeps/x86_64/multiarch/ifunc-avx2.h')
| -rw-r--r-- | sysdeps/x86_64/multiarch/ifunc-avx2.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sysdeps/x86_64/multiarch/ifunc-avx2.h b/sysdeps/x86_64/multiarch/ifunc-avx2.h index 12cff8451f..d423d3b304 100644 --- a/sysdeps/x86_64/multiarch/ifunc-avx2.h +++ b/sysdeps/x86_64/multiarch/ifunc-avx2.h @@ -30,11 +30,11 @@ IFUNC_SELECTOR (void) const struct cpu_features* cpu_features = __get_cpu_features (); if (CPU_FEATURES_ARCH_P (cpu_features, AVX2_Usable) + && CPU_FEATURES_CPU_P (cpu_features, BMI2) && CPU_FEATURES_ARCH_P (cpu_features, AVX_Fast_Unaligned_Load)) { if (CPU_FEATURES_ARCH_P (cpu_features, AVX512VL_Usable) - && CPU_FEATURES_ARCH_P (cpu_features, AVX512BW_Usable) - && CPU_FEATURES_CPU_P (cpu_features, BMI2)) + && CPU_FEATURES_ARCH_P (cpu_features, AVX512BW_Usable)) return OPTIMIZE (evex); if (CPU_FEATURES_CPU_P (cpu_features, RTM)) |