[Bug tree-optimization/111431] a & (a == 0) is not optimized to 0

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111431

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note this is an extension of the pattern:
/* X & !X -> 0.  */
(simplify
 (bit_and:c @0 (logical_inverted_value @0))

Which was moved to match via r5-4683-g5609420fbab5ca .