https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29550
--- Comment #11 from Eric Gallager <egallager at gcc dot gnu.org> --- (In reply to Thomas Koenig from comment #9) > I think I will defer this until gcc-9. It's gcc-9's stage 1 now, so if this is being deferred until now, now's the time...
