projects / platform / upstream / glibc.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: f31a5a8) | patch
x86-64: Require BMI2 for AVX2 (raw|w)memchr implementations
authorAurelien Jarno <aurelien@aurel32.net>
Mon, 3 Oct 2022 21:46:11 +0000 (23:46 +0200)
committerAurelien Jarno <aurelien@aurel32.net>
Mon, 3 Oct 2022 21:46:11 +0000 (23:46 +0200)
commite3e7fab7fe5186d18ca2046d99ba321c27db30ad
tree8e96e9e34a099f46d74876fe8a840511625e302etree | snapshot
parentf31a5a884ed84bd37032729d4d1eb9d06c9f3c29commit | diff
x86-64: Require BMI2 for AVX2 (raw|w)memchr implementations

The AVX2 memchr, rawmemchr and wmemchr implementations use the 'bzhi'
and 'sarx' instructions, which belongs to the BMI2 CPU feature.

Fixes: acfd088a1963 ("x86: Optimize memchr-avx2.S")
Partially resolves: BZ #29611

Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
sysdeps/x86_64/multiarch/ifunc-impl-list.c diff | blob | history
Domain: System / Toolchain;