From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 2ED51391D726; Mon, 19 Dec 2022 08:54:54 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2ED51391D726 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1671440094; bh=e/TigAtgvYbX7XbHMfaWj6lyn2E9EChr6FBGbD7Z4JU=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Ef7+sOCqSGZZ+4vVapS284U0/bnIzaiuaMk5LF91dpQshAFaOp/jNPXBmXTX/dW7c U6Qx1LOcwFBgzE6cU2wYCoePkrZVqftOXfMXU2zHS2DjenvB16EM2usaVRRoKdTUW8 DXcQDzLI/NrIk82fjL/7Tp//EeD5wZU/2KcdtIjU= From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/108164] [12/13 Regression] wrong code with "-O3 -fno-tree-dce" on x86_64-linux-gnu since r12-5267-g540d92ae9b629eb4 Date: Mon, 19 Dec 2022 08:54:53 +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: 13.0 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: P3 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: 12.3 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status assigned_to 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108164 Richard Biener changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot = gnu.org --- Comment #5 from Richard Biener --- I will have a look. Disabling t.c:6:14: optimized: loop with 6 iterations completely unrolled (header execution count 46365075) fixes the testcase.=