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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-03-05 07:15:03 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-03-29 07:40:17 -0700 |
| commit | 1b968b6b9b3aac702ac2f133e0dd16cfdbb415ee (patch) | |
| tree | 03329adc8a73b1fbfafad45ff41e8706c799d5c0 /sysdeps/x86_64/multiarch/ifunc-impl-list.c | |
| parent | 63ad43566f7a25d140dc723598aeb441ad657eed (diff) | |
| download | glibc-1b968b6b9b3aac702ac2f133e0dd16cfdbb415ee.tar.gz glibc-1b968b6b9b3aac702ac2f133e0dd16cfdbb415ee.tar.xz glibc-1b968b6b9b3aac702ac2f133e0dd16cfdbb415ee.zip | |
x86-64: Add memset family functions with 256-bit EVEX
Update ifunc-memset.h/ifunc-wmemset.h to select the function optimized with 256-bit EVEX instructions using YMM16-YMM31 registers to avoid RTM abort with usable AVX512VL and AVX512BW since VZEROUPPER isn't needed at function exit.
Diffstat (limited to 'sysdeps/x86_64/multiarch/ifunc-impl-list.c')
| -rw-r--r-- | sysdeps/x86_64/multiarch/ifunc-impl-list.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c index e1c39d58d6..aac8e601df 100644 --- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c +++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c @@ -161,6 +161,14 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, CPU_FEATURE_USABLE (AVX2), __memset_chk_avx2_unaligned_erms) IFUNC_IMPL_ADD (array, i, __memset_chk, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __memset_chk_evex_unaligned) + IFUNC_IMPL_ADD (array, i, __memset_chk, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __memset_chk_evex_unaligned_erms) + IFUNC_IMPL_ADD (array, i, __memset_chk, CPU_FEATURE_USABLE (AVX512F), __memset_chk_avx512_unaligned_erms) IFUNC_IMPL_ADD (array, i, __memset_chk, @@ -186,6 +194,14 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, CPU_FEATURE_USABLE (AVX2), __memset_avx2_unaligned_erms) IFUNC_IMPL_ADD (array, i, memset, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __memset_evex_unaligned) + IFUNC_IMPL_ADD (array, i, memset, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __memset_evex_unaligned_erms) + IFUNC_IMPL_ADD (array, i, memset, CPU_FEATURE_USABLE (AVX512F), __memset_avx512_unaligned_erms) IFUNC_IMPL_ADD (array, i, memset, @@ -556,6 +572,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, CPU_FEATURE_USABLE (AVX2), __wmemset_avx2_unaligned) IFUNC_IMPL_ADD (array, i, wmemset, + CPU_FEATURE_USABLE (AVX512VL), + __wmemset_evex_unaligned) + IFUNC_IMPL_ADD (array, i, wmemset, CPU_FEATURE_USABLE (AVX512F), __wmemset_avx512_unaligned)) @@ -724,6 +743,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, CPU_FEATURE_USABLE (AVX2), __wmemset_chk_avx2_unaligned) IFUNC_IMPL_ADD (array, i, __wmemset_chk, + CPU_FEATURE_USABLE (AVX512VL), + __wmemset_chk_evex_unaligned) + IFUNC_IMPL_ADD (array, i, __wmemset_chk, CPU_FEATURE_USABLE (AVX512F), __wmemset_chk_avx512_unaligned)) #endif |