[Bug tree-optimization/111542] [12/13/14/15 Regression] (a==0)&(b==0) into `(a|b) == 0` optimization sometimes gets in the way of other optimizations

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111542

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #3)
> I had assumed genmatch would generate that code that would use @0/@1 if they
> had side effects.  Maybe because I match @0 twice, it assumed we would be
> using the captures (I have not looked though).

That was fixed with r14-9350-g95b6ee96348041 .