[Bug tree-optimization/118602] Missed optimization for (0xc0 & c) == 0x80

[peter0x44 at disroot dot org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118602

--- Comment #3 from Peter Damianov <peter0x44 at disroot dot org> ---
Clang is also able to figure it out for:
bool test(char c)
{
    return ((0xe0 & c) ==  0x80);
}

And signed or unsigned doesn't make a difference.