https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65414
--- Comment #12 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #11) > I am almost 100% sure it was caused by > e2a16b9122d238b8877640b5f6ef1599e195fae0 (revision 221372). I am checking > if reverting this patch from the current upstream will not crash. yes reverting that patch fixes the bootstrap for me.