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author | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-03-23 16:57:38 -0500 |
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committer | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-03-25 11:46:13 -0500 |
commit | d154758e618ec9324f5d339c46db0aa27e8b1226 (patch) | |
tree | 1ab03f58b477730088bdb512e15b315196403047 /sysdeps/x86_64/multiarch/strlen-avx2.S | |
parent | 670b54bc585ea4a94f3b2e9272ba44aa6b730b73 (diff) | |
download | glibc-d154758e618ec9324f5d339c46db0aa27e8b1226.tar.gz glibc-d154758e618ec9324f5d339c46db0aa27e8b1226.tar.xz glibc-d154758e618ec9324f5d339c46db0aa27e8b1226.zip |
x86: Optimize str{n}casecmp TOLOWER logic in strcmp-sse42.S
Slightly faster method of doing TOLOWER that saves an instruction. Also replace the hard coded 5-byte no with .p2align 4. On builds with CET enabled this misaligned entry to strcasecmp. geometric_mean(N=40) of all benchmarks New / Original: .920 All string/memory tests pass. Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Diffstat (limited to 'sysdeps/x86_64/multiarch/strlen-avx2.S')
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