https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68811
--- Comment #6 from Jan Hubicka <hubicka at ucw dot cz> --- > Thanks. > > I now get: > > lto1: internal compiler error: in lto_fixup_prevailing_decls, at > lto/lto.c:2533 > 0x1017ce37 lto_fixup_prevailing_decls > ../../gcc/gcc/lto/lto.c:2533 Fun, I wonder why I did not hit it. The issue is that we try to fixup decl that was prevailed. I suppose we can just drop that sanity check. We check this twice - doing that before symtab merging should be enough. Honza