On 7/22/19 9:51 PM, Ben Cotton wrote:
https://fedoraproject.org/wiki/Changes/x86-64_micro-architecture_update
Along with AVX2, it makes sense to enable certain other CPU features
which are not strictly implied by AVX2, such as CMPXCHG16B, FMA, and
earlier vector extensions such as SSE 4.2. Details are still being
worked out.
And why not use FMV?? the gcc/glibc is new enough, FMV could be
implemented package by package ... using clear linux make-fmv-patch
recipe one can adapt the code to various capabilities (and of course the
patches can be contributed upstream, tweaked and customized)
Adrian