From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 18B5D3858C53; Sat, 9 Dec 2023 11:00:06 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 18B5D3858C53 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1702119606; bh=tQE36dc6DdrtQ52Dje1SmWBXGUWQL8zI2B5AapWy3VE=; h=From:To:Subject:Date:In-Reply-To:References:From; b=ONSzcHT4yL+JJRZWhhuVILVyo5SeM2GGj5Wq13fiFW0sb2CRuWPvAN6Pgl20YLMzn Igg8WRoU33WXwFv4iH1sgnQ+QcsyO2bWfV29VRFffUOS7P3P/W2HLH5GlWcV6nmvS/ 4g7j1HnD5wVhIRRe8bY27lg0qQIn0k/BJ22dKE5Y= From: "ebotcazou at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/112758] [13/14 Regression] Inconsistent Bitwise AND Operation Result between int and long long int Date: Sat, 09 Dec 2023 11:00:04 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: needs-bisection, wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: ebotcazou at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned 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=3D112758 --- Comment #9 from Eric Botcazou --- > Which means punt on this optimization for WORD_REGISTER_OPERATIONS if the > outer mode is word_mode, except when sub is a MEM and load_extend_op > (inner_mode) =3D=3D ZERO_EXTEND? Yes, this sounds like a sensible approach.=