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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/95929] Failure to optimize tautological
 comparisons of comparisons to a single one
Date: Tue, 22 Aug 2023 16:53:40 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95929

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |pinskia at gcc dot =
gnu.org
             Status|NEW                         |ASSIGNED

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
r14-3110-g7fb65f102851 (handling of a?~t:t -> (-(a))^t) basically fixes thi=
s.

The only thing left is removing of `bool =3D -bool`:
In:
  _1 =3D a_5(D) !=3D 0;
  _2 =3D b_3(D) !=3D 0;
  _13 =3D -_2;
  _12 =3D _1 ^ _13;=