[Bug middle-end/108847] [10/11/12/13/14 Regression] unnecessary bitwise AND on boolean types and shifting of the "sign" bit

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108847

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
VRP starting doing this in GCC 5:
Folding statement: _5 = _4 != 0;
Folded into: _5 = (bool) _4;