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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/111110] (A CMP B) != 0 and (A CMP B) == true
 patterns produce an extra (A CMP B) rather than reusing it
Date: Wed, 23 Aug 2023 23:16:32 +0000
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X-Bugzilla-Type: changed
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: missed-optimization
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: WONTFIX
X-Bugzilla-Priority: P3
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Message-ID: <bug-111110-4-rnZMh3ouZS@http.gcc.gnu.org/bugzilla/>
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111110

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |WONTFIX

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So this won't work even though it is the right thing to do because when we =
are
folding `if (a !=3D 1)` and a is defined by a comparison, we want to get ba=
ck the
comparison.
Now you could say this is problem in how we fold GIMPLE_COND but it is what=
 it
is right now.=