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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/109638] unsigned > 1 ? 0 : n is not optimized
 to n == 1
Date: Wed, 26 Apr 2023 21:03:54 +0000
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 13.0
X-Bugzilla-Keywords: missed-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109638

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This should do it, I think:

(simplify
 (cond (lt @1 integer_onep@2) integer_zerop @1)
 (if (TYPE_UNSIGNED (type))
  (convert (eq @1 @2))))=