https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66589
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- I don't why sometimes it shows up as enabled and other times it does not.
[Bug target/66589] AVX instruction set extension is not enabled by default for bdver2
pinskia at gcc dot gnu.org via Gcc-bugs Fri, 06 Aug 2021 17:24:31 -0700
