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authorNoah Goldstein <goldstein.w.n@gmail.com>2022-04-21 20:52:30 -0500
committerNoah Goldstein <goldstein.w.n@gmail.com>2022-04-22 23:08:43 -0500
commitc966099cdc3e0fdf92f63eac09b22fa7e5f5f02d (patch)
tree6cc2471be9d9eeff2ab39aa69f716ab4023b7b0d /nptl_db/Makefile
parentdf7e295d18ffa34f629578c0017a9881af7620f6 (diff)
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x86: Optimize {str|wcs}rchr-evex
The new code unrolls the main loop slightly without adding too much
overhead and minimizes the comparisons for the search CHAR.

Geometric Mean of all benchmarks New / Old: 0.755
See email for all results.

Full xcheck passes on x86_64 with and without multiarch enabled.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
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