http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60002
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #2) > + /* The FE might have information and assumptions about the other > + arguments. */ > + DECL_LANG_SPECIFIC (new_decl) = NULL; If that passes testing, it's OK.