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| author | H.J. Lu <hjl.tools@gmail.com> | 2022-02-07 05:55:15 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2022-02-08 15:58:56 -0800 |
| commit | 3d9f171bfb5325bd5f427e9fc386453358c6e840 (patch) | |
| tree | 5caeddafa6cb494bbe102c34f7f2ee630f5d83cf /math/libm-test-cos.inc | |
| parent | dc98eeeb952f59bdbd51da0409e732756fe30170 (diff) | |
| download | glibc-3d9f171bfb5325bd5f427e9fc386453358c6e840.tar.gz glibc-3d9f171bfb5325bd5f427e9fc386453358c6e840.tar.xz glibc-3d9f171bfb5325bd5f427e9fc386453358c6e840.zip | |
x86-64: Optimize bzero
memset with zero as the value to set is by far the majority value (99%+ for Python3 and GCC). bzero can be slightly more optimized for this case by using a zero-idiom xor for broadcasting the set value to a register (vector or GPR). Co-developed-by: Noah Goldstein <goldstein.w.n@gmail.com>
Diffstat (limited to 'math/libm-test-cos.inc')
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