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| 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/strncpy-evex.S | |
| parent | 1fd8c163a83d96ace1ff78fa6bac7aee084f6f77 (diff) | |
| download | glibc-525bc2a32c9710df40371f951217c6ae7a923aee.tar.gz glibc-525bc2a32c9710df40371f951217c6ae7a923aee.tar.xz glibc-525bc2a32c9710df40371f951217c6ae7a923aee.zip | |
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/strncpy-evex.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strncpy-evex.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/strncpy-evex.S b/sysdeps/x86_64/multiarch/strncpy-evex.S new file mode 100644 index 0000000000..40e391f0da --- /dev/null +++ b/sysdeps/x86_64/multiarch/strncpy-evex.S @@ -0,0 +1,3 @@ +#define USE_AS_STRNCPY +#define STRCPY __strncpy_evex +#include "strcpy-evex.S" |