[Bug middle-end/110986] [14 Regression] aarch64 has support for conditional not (and vectors can do conditional not still) after r14-3110-g7fb65f10285

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110986

--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 55728
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55728&action=edit
Fixes part of this

This patch does 2 things which I will split out.
First is it creates COND_NOT like COND_NEG to allow better code generation
earlier on.

Next it simplifies:
vector `(a ? -1 : 0) ^ b` -> `a ? ~b : b` as there might be a conditional not.

That fixes the case where the types are the same. Still need to fix up the case
where the types are different.