From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 70828 invoked by alias); 26 Oct 2015 15:25:23 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 70784 invoked by uid 55); 26 Oct 2015 15:25:19 -0000 From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/67443] [5/6 regression] DSE removes required store instruction Date: Mon, 26 Oct 2015 15:25:00 -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: 5.2.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 5.3 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2015-10/txt/msg02130.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67443 --- Comment #22 from Richard Biener --- Author: rguenth Date: Mon Oct 26 15:24:45 2015 New Revision: 229372 URL: https://gcc.gnu.org/viewcvs?rev=229372&root=gcc&view=rev Log: 2015-10-26 Richard Biener Dominik Vogt PR middle-end/67443 * alias.c (ao_ref_from_mem): Remove promoted subreg handling. Properly prune ref->ref for accesses outside of ref. * gcc.target/s390/pr67443.c: New testcase. Added: trunk/gcc/testsuite/gcc.target/s390/pr67443.c Modified: trunk/gcc/ChangeLog trunk/gcc/alias.c trunk/gcc/testsuite/ChangeLog