https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82735
--- Comment #14 from Hongtao.liu <crazylht at gmail dot com> --- (In reply to Hongtao.liu from comment #12) > (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. Correct typo, add the clobbers/sets earlier(than RA)