From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 6F0363858C52; Tue, 17 Oct 2023 14:35:24 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6F0363858C52 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1697553324; bh=uKErBfXp+oMJ4P0cepOf+VwIHFPG6aNwJGRBsi1clqk=; h=From:To:Subject:Date:In-Reply-To:References:From; b=aIi9YX5cQgC9T3tHHFRoedzi2m7bqQkeFFpxfU3Np7syzz4yK+1HstyjHSUWDx+Ow ka7xVkkQpAI21I0b65ihE2RejWVxeh0zbF9IfmlOx79D01JFzdtNtwYeQBtss23SPF SizbF058Bkgg4BgnAw8bM/Qet6pmO1BsLIIGXO6s= From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/110243] [13/14 Regression] Wrong code at -O3 on x86_64-linux-gnu since r13-3875-g9e11ceef165 Date: Tue, 17 Oct 2023 14:35:23 +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: 14.0 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: 13.3 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110243 --- Comment #8 from Richard Biener --- See https://gcc.gnu.org/pipermail/gcc-patches/2023-June/621989.html for the prototype patch. I still think it might be too aggressive, an alternative I didn't yet implement is turning everything in split_offset to unsigned arith as IVOPTs does elsewhere anyway.=