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From: "gabravier at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/94919] New: Failure to recognize max pattern
Date: Sat, 02 May 2020 09:51:38 +0000
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X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 11.0
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94919

            Bug ID: 94919
           Summary: Failure to recognize max pattern
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gabravier at gmail dot com
  Target Milestone: ---

int f(int x, int y)
{
    return ((x ^ y) & -(x >=3D y)) ^ y;
}

This can be optimized to `x >=3D y ? x : y`. LLVM makes this transformation=
, but
GCC does not.=