https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70285
--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> --- (In reply to Jason Merrill from comment #5) > I'm not sure how it makes sense to represent this; lowered bit-field types > really complicate matters. But it looks like I can follow the pattern from cp_genericize_r.