diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2021-03-05 06:36:50 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-03-29 07:40:17 -0700 |
| commit | 525bc2a32c9710df40371f951217c6ae7a923aee (patch) | |
| tree | efd1cd7acf189386bf9223678ccea60de70bc93b /sysdeps/x86_64/multiarch/ifunc-impl-list.c | |
| parent | 1fd8c163a83d96ace1ff78fa6bac7aee084f6f77 (diff) | |
| download | glibc-525bc2a32c9710df40371f951217c6ae7a923aee.tar.gz | |
x86-64: Add strcpy family functions with 256-bit EVEX
Update ifunc-strcpy.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 | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c index 3bf10d3714..74b20d8bd1 100644 --- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c +++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c @@ -224,6 +224,10 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, __stpncpy_ssse3) IFUNC_IMPL_ADD (array, i, stpncpy, CPU_FEATURE_USABLE (AVX2), __stpncpy_avx2) + IFUNC_IMPL_ADD (array, i, stpncpy, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __stpncpy_evex) IFUNC_IMPL_ADD (array, i, stpncpy, 1, __stpncpy_sse2_unaligned) IFUNC_IMPL_ADD (array, i, stpncpy, 1, __stpncpy_sse2)) @@ -234,6 +238,10 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, __stpcpy_ssse3) IFUNC_IMPL_ADD (array, i, stpcpy, CPU_FEATURE_USABLE (AVX2), __stpcpy_avx2) + IFUNC_IMPL_ADD (array, i, stpcpy, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __stpcpy_evex) IFUNC_IMPL_ADD (array, i, stpcpy, 1, __stpcpy_sse2_unaligned) IFUNC_IMPL_ADD (array, i, stpcpy, 1, __stpcpy_sse2)) @@ -268,6 +276,10 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL (i, name, strcat, IFUNC_IMPL_ADD (array, i, strcat, CPU_FEATURE_USABLE (AVX2), __strcat_avx2) + IFUNC_IMPL_ADD (array, i, strcat, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __strcat_evex) IFUNC_IMPL_ADD (array, i, strcat, CPU_FEATURE_USABLE (SSSE3), __strcat_ssse3) IFUNC_IMPL_ADD (array, i, strcat, 1, __strcat_sse2_unaligned) @@ -330,6 +342,10 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL (i, name, strcpy, IFUNC_IMPL_ADD (array, i, strcpy, CPU_FEATURE_USABLE (AVX2), __strcpy_avx2) + IFUNC_IMPL_ADD (array, i, strcpy, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __strcpy_evex) IFUNC_IMPL_ADD (array, i, strcpy, CPU_FEATURE_USABLE (SSSE3), __strcpy_ssse3) IFUNC_IMPL_ADD (array, i, strcpy, 1, __strcpy_sse2_unaligned) @@ -373,6 +389,10 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL (i, name, strncat, IFUNC_IMPL_ADD (array, i, strncat, CPU_FEATURE_USABLE (AVX2), __strncat_avx2) + IFUNC_IMPL_ADD (array, i, strncat, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __strncat_evex) IFUNC_IMPL_ADD (array, i, strncat, CPU_FEATURE_USABLE (SSSE3), __strncat_ssse3) IFUNC_IMPL_ADD (array, i, strncat, 1, @@ -383,6 +403,10 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL (i, name, strncpy, IFUNC_IMPL_ADD (array, i, strncpy, CPU_FEATURE_USABLE (AVX2), __strncpy_avx2) + IFUNC_IMPL_ADD (array, i, strncpy, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __strncpy_evex) IFUNC_IMPL_ADD (array, i, strncpy, CPU_FEATURE_USABLE (SSSE3), __strncpy_ssse3) IFUNC_IMPL_ADD (array, i, strncpy, 1, |