[Bug c++/105774] Bogus overflow in constant expression with signed char++

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105774

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
And one for short:
constexpr signed short f(void){
    signed short x = 0x7fff;
    return ++x;
}
int main() {
    constexpr auto _ = f();
}