https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113059
--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> --- The question is revert what exactly? If we revert r14-6210, we get back the other P1. Or do you mean revert r14-5355? I guess another option is move the vzeroupper pass one pass later, i.e. after pass_gcse.