[PATCH] x86: Update CPU feature detection
Thu Jun 18 08:09:44 GMT 2020
* H. J. Lu via Libc-alpha:
> 1. Add COMMON_CPUID_INDEX_7_ECX_1 for AVX512_BF16.
Do you expect similar changes in the future? This changes the layout of
If __x86_get_cpu_features is exported, such a change will require a new
symbol version for __x86_get_cpu_features and can therefore only be made
at a release boundary. Even then, statically linked libraries will
silently use the old layout of struct cpu_features, silently giving
incorrect results if linked against a newer glibc version.
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