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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/107880] bool tautology missed optimisation
Date: Sat, 26 Nov 2022 18:06:04 +0000
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X-Bugzilla-Component: tree-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107880

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2022-11-26

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
We get in optimized:
  _9 =3D ~a_4(D);
  _10 =3D b_3(D) | _9;
  _7 =3D ~b_3(D);
  _8 =3D a_4(D) | _7;
  _1 =3D _8 =3D=3D _10;
  _2 =3D b_3(D) =3D=3D a_4(D);
  _6 =3D _1 =3D=3D _2;=