https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61510
--- Comment #1 from Jan Hubicka <hubicka at gcc dot gnu.org> --- What happens at the line 1054 of cgraphunit.c. = cgraph_get_node (DECL_ABSTRACT_ORIGIN (decl)); origin_node->used_as_abstract_origin = true; Do you really get into case where abstract origin is NULL? Honza