[Bug middle-end/100798] a?~t:t and (-(!!a))^t don't produce the same assembly code

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100798

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
To produce the same code we could do a match pattern:
(simplify
 (cond @0 (bit_not @1) @1)
 (bit_xor (neg (convert @0)) @1))