[Bug tree-optimization/91213] Missed optimization: (sub X Y) -> (xor X Y) when Y <= X and isPowerOf2(X + 1)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91213

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 101610 has been marked as a duplicate of this bug. ***