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28 lines
993 B
28 lines
993 B
2 years ago
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commit c51d8d383cfb92142b86d8d1822159f3bea10d16
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Author: Noah Goldstein <goldstein.w.n@gmail.com>
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Date: Thu Jun 16 15:01:08 2022 -0700
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x86: Add BMI1/BMI2 checks for ISA_V3 check
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BMI1/BMI2 are part of the ISA V3 requirements:
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https://en.wikipedia.org/wiki/X86-64
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And defined by GCC when building with `-march=x86-64-v3`
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(cherry picked from commit 8da9f346cb2051844348785b8a932ec44489e0b7)
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diff --git a/sysdeps/x86/isa-level.c b/sysdeps/x86/isa-level.c
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index 49ef4aa6122072cf..07815381122c94c3 100644
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--- a/sysdeps/x86/isa-level.c
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+++ b/sysdeps/x86/isa-level.c
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@@ -47,7 +47,8 @@
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# endif
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# if ISA_V2 && defined __AVX__ && defined __AVX2__ && defined __F16C__ \
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- && defined __FMA__ && defined __LZCNT__ && defined HAVE_X86_MOVBE
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+ && defined __FMA__ && defined __LZCNT__ && defined HAVE_X86_MOVBE \
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+ && defined __BMI__ && defined __BMI2__
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/* NB: ISAs in x86-64 ISA level v3 are used. */
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# define ISA_V3 GNU_PROPERTY_X86_ISA_1_V3
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# else
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