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x86: Add sse42 implementation to strcmp's ifunc
authorNoah Goldstein <goldstein.w.n@gmail.com>
Tue, 14 Jun 2022 22:37:28 +0000 (15:37 -0700)
committerNoah Goldstein <goldstein.w.n@gmail.com>
Wed, 15 Jun 2022 03:58:09 +0000 (20:58 -0700)
commitff439c47173565fbff4f0f78d07b0f14e4a7db05
tree6c50dc3e3914c3082174845a65808ed043e832actree | snapshot
parent035591551400cfc810b07244a015c9411e8bff7ccommit | diff
x86: Add sse42 implementation to strcmp's ifunc

This has been missing since the the ifuncs where added.

The performance of SSE4.2 is preferable to to SSE2.

Measured on Tigerlake with N = 20 runs.
Geometric Mean of all benchmarks SSE4.2 / SSE2: 0.906
sysdeps/x86_64/multiarch/strcmp.c diff | blob | blame | history
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