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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/40987] ifcvt sometimes goes wrong for integer
 modes > 64bit
Date: Fri, 02 Jun 2023 01:02:09 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: rtl-optimization
X-Bugzilla-Version: 4.3.4
X-Bugzilla-Keywords: patch, wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: FIXED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 4.9.0
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X-Bugzilla-Changed-Fields: resolution bug_status target_milestone
Message-ID: <bug-40987-4-cXlhFXhflK@http.gcc.gnu.org/bugzilla/>
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References: <bug-40987-4@http.gcc.gnu.org/bugzilla/>
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D40987

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED
   Target Milestone|---                         |4.9.0

--- Comment #14 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Looks like this was fixed with r0-127324-ge15eb172b0dd (aka PR 59545).
Basically a signed integer overflow inside the compiler was causing the wro=
ng
code happening.=