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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/51781] Missed optimization for ==/!=
 comparison type-sinking
Date: Fri, 04 Jun 2021 21:55:17 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D51781

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

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

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Mine.

Psedu-match.pd code (needs expansion of some stuff but the general idea is
there)
(for (cmp ne eq)
 (cmp (convert @0) (bit_and @1 INTEGER_CST@2)
  (if (TYPE_UNSIGNED(@0) && @2 =3D=3D maskforprecissionoftype(@0))
   (cmp @0 (convert:TYPE(@0) @1))=