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| author | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-10-20 10:26:46 -0700 |
|---|---|---|
| committer | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-10-20 11:29:05 -0700 |
| commit | c25eb94aed942761aabdcd05239b7e76dcdde098 (patch) | |
| tree | 4001a5b831b5943a0e37e86c174ccff0b23fd3c5 /manual/stdio-fp.c | |
| parent | a885fc2d6897d3baa438e2594a92f0125f1258a9 (diff) | |
| download | glibc-c25eb94aed942761aabdcd05239b7e76dcdde098.zip glibc-c25eb94aed942761aabdcd05239b7e76dcdde098.tar.gz glibc-c25eb94aed942761aabdcd05239b7e76dcdde098.tar.bz2 | |
x86: Remove AVX512-BVMI2 instruction from strrchr-evex.S
commit b412213eee0afa3b51dfe92b736dfc7c981309f5
Author: Noah Goldstein <goldstein.w.n@gmail.com>
Date: Tue Oct 18 17:44:07 2022 -0700
x86: Optimize strrchr-evex.S and implement with VMM headers
Added `vpcompress{b|d}` to the page-cross logic with is an
AVX512-VBMI2 instruction. This is not supported on SKX. Since the
page-cross logic is relatively cold and the benefit is minimal
revert the page-cross case back to the old logic which is supported
on SKX.
Tested on x86-64.
Diffstat (limited to 'manual/stdio-fp.c')
0 files changed, 0 insertions, 0 deletions