https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82735
--- Comment #12 from Hongtao.liu <crazylht at gmail dot com> --- (In reply to Jakub Jelinek from comment #10) > Last touched in PR99563. > I guess for the explicit user vzeroupper we need to add the clobbers/sets > earlier than in the vzeroupper pass, but ideally in a way that doesn't force > save/restore of registers that aren't really needed in the function. Yes, if we want to add the clobbers/sets earlier(than CSE1), vzeroupper pass should be able to remove those unnecessary clobbers/sets.
