https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97521
--- Comment #21 from Andrew Stubbs <ams at gcc dot gnu.org> --- (In reply to Richard Biener from comment #19) > GCN also uses MODE_INT for the mask mode and thus may be similarly affected. > Andrew - are the bits in the mask dense? Thus for a V4SImode compare > would the mask occupy only the lowest 4 bits of the DImode mask? Yes, that's correct.