https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82402
--- Comment #7 from rguenther at suse dot de <rguenther at suse dot de> --- On Wed, 22 Nov 2017, jakub at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82402 > > Jakub Jelinek <jakub at gcc dot gnu.org> changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > CC| |jakub at gcc dot gnu.org > > --- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- > So shall we ignore it on them in the checking code, or make sure it is never > set? Neither. We should fix whoever fails to set it. Whether we want to at some point ignore it / remove it is another question. Looks like the culprit is somehow the vectorizer pass which ends up with a spurious MEM_23(ab) for me. I guess it doesn't really expect the loop exit to end in a call with just an abnormal outgoing edge... Let me have a look.