https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87843
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Jan Hubicka from comment #7) > > If we have less MEM_REFs then we probably strip them because we think they > > reference equal types. > > > > I think I already told you that given that MEM_REFs use pointer types > > to carry alignment info _those_ may not become incomplete! But I didn't > > expect that to cause wrong-code but missed optimizations. > > We do not make them incomplete. The problem actually seems to be in > early optimization where we optimize out the if conditional above. > Not sure why -ffat-lto-objects worked in this context. So can you attach preprocessed source for the affected file? And name the affected function? (dump is stripped too early)
