https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97860
--- Comment #7 from Martin Sebor <msebor at gcc dot gnu.org> --- What I mean is that unless error_mark_node necessarily implies (and guarantees) the bound is a constant zero (as opposed to a similarly "broken" VLA bound), simply bailing is safer than skipping it. I have no idea if the front end guarantees it but I don't see it mentioned in array_type_nelts(). If it is guaranteed then continuing is fine but it should also be documented in the comment above array_type_nelts(), and I would suggest to also mention it in the change to get_parm_array_spec.
