https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68193
--- Comment #4 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- I agree delaying warnings would help, but you'd need to distinguish warnings relating to execution of the code that should be disabled in unevaluated code from warnings that should always be present (which include but aren't limited to pedwarns). For example, you shouldn't lose a diagnostic for an implicit function declaration just because it's in an unevaluated _Generic selection.
