https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83488
--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> --- And, if we run out of easy move ideas, we could make a copy of the ISA_64BIT so that we'd have it in both flag sets (and keep it synced) and move all AVX512 related stuff to isa_flags2 and everything else to isa_flags.