https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105650
--- Comment #5 from Sergei Trofimovich <slyfox at gcc dot gnu.org> --- (In reply to Richard Biener from comment #2) > I can't reproduce with r13-565-g941efd87e22b1b > > It might be a __builtin_unreachable () falling through to an illegal > instruction. > > Maybe somebody can bisect to a failing revision. Aha, that's slightly fresher gcc than most recent weekly snapshot. r13-550 and r13-552 both look like plausible fixes. I'll test both.