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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-04-19 07:07:21 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2022-01-27 15:31:17 -0800 |
| commit | f996f678b908a4a0e73816da89d47869e50c370f (patch) | |
| tree | 7167eb699f5002baf2c17aa196c2de2ef55b0ad9 | |
| parent | bee0b69a58e341b70b2f9db6078ae047827ff209 (diff) | |
| download | glibc-f996f678b908a4a0e73816da89d47869e50c370f.tar.gz glibc-f996f678b908a4a0e73816da89d47869e50c370f.tar.xz glibc-f996f678b908a4a0e73816da89d47869e50c370f.zip | |
x86-64: Require BMI2 for __strlen_evex and __strnlen_evex
Since __strlen_evex and __strnlen_evex added by
commit 1fd8c163a83d96ace1ff78fa6bac7aee084f6f77
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Mar 5 06:24:52 2021 -0800
x86-64: Add ifunc-avx2.h functions with 256-bit EVEX
use sarx:
c4 e2 6a f7 c0 sarx %edx,%eax,%eax
require BMI2 for __strlen_evex and __strnlen_evex in ifunc-impl-list.c.
ifunc-avx2.h already requires BMI2 for EVEX implementation.
(cherry picked from commit 55bf411b451c13f0fb7ff3d3bf9a820020b45df1)
| -rw-r--r-- | sysdeps/x86_64/multiarch/ifunc-impl-list.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c index 11e9e25820..e5af769869 100644 --- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c +++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c @@ -295,7 +295,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, __strlen_avx2_rtm) IFUNC_IMPL_ADD (array, i, strlen, (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW)), + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), __strlen_evex) IFUNC_IMPL_ADD (array, i, strlen, 1, __strlen_sse2)) @@ -312,7 +313,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, __strnlen_avx2_rtm) IFUNC_IMPL_ADD (array, i, strnlen, (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW)), + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), __strnlen_evex) IFUNC_IMPL_ADD (array, i, strnlen, 1, __strnlen_sse2)) |