From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id D302B3835C24; Tue, 17 Aug 2021 08:59:04 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D302B3835C24 From: "aldyh at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/101938] [12 Regression] Wrong code with -fwrapv since r12-2591-g2e96b5f14e402569 Date: Tue, 17 Aug 2021 08:59:04 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 12.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: aldyh at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: aldyh at gcc dot gnu.org X-Bugzilla-Target-Milestone: 12.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Aug 2021 08:59:04 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101938 --- Comment #4 from Aldy Hernandez --- This is actually an oversight in the range-ops code. In flag_wrapv -TYPE_MIN_VALUE =3D TYPE_MIN_VALUE which is special cased in the ABS folding routine, but not in operator_abs::op1_range(). Thank you for reporting and distilling this Martin.=