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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 15:56:36 -0800 |
| commit | 87a18fc33ab428f842ddd844b63691e19ea76e2d (patch) | |
| tree | 9771c7813a60ce0324e1571f8c280332d5a71c85 | |
| parent | de28bb3c612daedb08fa975325c1a293fbca07a9 (diff) | |
| download | glibc-87a18fc33ab428f842ddd844b63691e19ea76e2d.tar.gz glibc-87a18fc33ab428f842ddd844b63691e19ea76e2d.tar.xz glibc-87a18fc33ab428f842ddd844b63691e19ea76e2d.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 b0ae7ed0da..bfe1a4ce53 100644 --- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c +++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c @@ -293,7 +293,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, __strlen_avx2_rtm) IFUNC_IMPL_ADD (array, i, strlen, (HAS_ARCH_FEATURE (AVX512VL_Usable) - && HAS_ARCH_FEATURE (AVX512BW_Usable)), + && HAS_ARCH_FEATURE (AVX512BW_Usable) + && HAS_CPU_FEATURE (BMI2)), __strlen_evex) IFUNC_IMPL_ADD (array, i, strlen, 1, __strlen_sse2)) @@ -308,7 +309,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, __strnlen_avx2_rtm) IFUNC_IMPL_ADD (array, i, strnlen, (HAS_ARCH_FEATURE (AVX512VL_Usable) - && HAS_ARCH_FEATURE (AVX512BW_Usable)), + && HAS_ARCH_FEATURE (AVX512BW_Usable) + && HAS_CPU_FEATURE (BMI2)), __strnlen_evex) IFUNC_IMPL_ADD (array, i, strnlen, 1, __strnlen_sse2)) |