[Bug c/71479] error on __builtin_add_overflow with bool or enum pointer as last argument

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71479

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
BTW, for __builtin_add_overflow_p with _Bool as last argument (which isn't
rejected, going to fix that momentarily) we don't emit the expected test
whether the result is 0/1, but whether it fits 8 bits unsigned.  Also, _Complex
_Bool
or _Complex enum ... is something way too weird for the middle-end.