https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107096
--- Comment #7 from rguenther at suse dot de <rguenther at suse dot de> --- On Mon, 10 Oct 2022, rsandifo at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107096 > > --- Comment #6 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> > --- > The PR means supporting targets where this assumption doesn't hold. > But I think we should test for it explicitly somehow. For now we > can probably assume that the assumption holds when the two mask > modes have equal size. more like precision but x86 uses QImode for two-element, four-element and eight-element masks (rather than two partial integer modes with two and four bits precision).