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Commit 36d6b9be authored by Aurelien Jarno's avatar Aurelien Jarno
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x86-64: Require BMI2 and LZCNT for AVX2 memrchr implementation



The AVX2 memrchr implementation uses the 'shlxl' instruction, which
belongs to the BMI2 CPU feature and uses the 'lzcnt' instruction, which
belongs to the LZCNT CPU feature.

Fixes: af5306a7 ("x86: Optimize memrchr-avx2.S")
Partially resolves: BZ #29611

Reviewed-by: default avatarNoah Goldstein <goldstein.w.n@gmail.com>
(cherry picked from commit 3c0c78af)
parent 94b9c1b6
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