From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id D7DED385801E; Mon, 24 Jan 2022 13:17:31 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D7DED385801E From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/100499] [9/10/11/12 Regression] Different results with -fpeel-loops -ftree-loop-vectorize options Date: Mon, 24 Jan 2022 13:17:31 +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: 10.2.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: 9.5 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: assigned_to bug_status 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: Mon, 24 Jan 2022 13:17:32 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100499 Richard Biener changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|amker at gcc dot gnu.org |rguenth at gcc dot = gnu.org Status|NEW |ASSIGNED --- Comment #37 from Richard Biener --- >>From PR103063: /* { dg-do run } */ int a =3D 0; unsigned char b =3D 0; int main() { a - 6; for (; a >=3D -13; a =3D a - 8) while((unsigned char)(b-- * 6)) ; if (b !=3D 127) __builtin_abort(); return 0; }=