From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id E06443858D1E; Mon, 30 Jan 2023 08:14:10 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E06443858D1E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1675066450; bh=dU9vbW/01fjLhIFNuVe+2YldjZdgDRE7wVBZobuRat4=; h=From:To:Subject:Date:In-Reply-To:References:From; b=tWY3Fog9w3Bwz0lT5KO+sU2lDDuZ9Un2RukkSgbjRnHazzjVQHwEbbbOkSM+eLYb0 fmBqXNNf9f1RqgeZ+SR+rELGBPMZOcbyUlU4yhGdNtSVyOQuP59fQgrLMmH/zGHHaK tA4qUaIYqbyUIvfw+6jSh5S5iy9LUZe86JddIp68= From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/108574] [13 Regression] wrong code at -Os and above on x86_64-linux-gnu Date: Mon, 30 Jan 2023 08:14:10 +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: P1 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: 13.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: assigned_to priority bug_status version 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=3D108574 Richard Biener changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot = gnu.org Priority|P3 |P1 Status|NEW |ASSIGNED Version|unknown |13.0 --- Comment #4 from Richard Biener --- Likely caused by r13-5348-gc29d85359add80 We do marking outgoing edge 12 -> 6 executable Looking for changed values of backedge 12->6 destination PHIs Predication says 0 and e_10 are equal on edge 11 -> 6 Setting value number of e_5 to 0 I will have a more detailed look.=