https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67005
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- Yeah, though "somewhere" would be all the time if we and up removing an edge. I've meant to see whether we can restrict it to "removed an edge with IRREDUCIBLE_LOOP flag set, but then we'd have to compute that first and we only do that for 'aggressive' aka CDDCE. Didn't get around to play with that ;) (note the ICE appears after CDDCE only, but I would need to convince myself that regular DCE can't trigger the same issue - I think it can't)
