From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27169 invoked by alias); 29 Feb 2012 17:47:06 -0000 Received: (qmail 27160 invoked by uid 22791); 29 Feb 2012 17:47:06 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 29 Feb 2012 17:46:53 +0000 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/52419] Wrong expansion of misaligned vector store Date: Wed, 29 Feb 2012 17:52:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: jakub at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.7.0 X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 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 X-SW-Source: 2012-02/txt/msg02842.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52419 --- Comment #8 from Jakub Jelinek 2012-02-29 17:46:08 UTC --- Author: jakub Date: Wed Feb 29 17:45:55 2012 New Revision: 184666 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=184666 Log: PR middle-end/52419 * expr.c (expand_assignment): If doing misaligned store that doesn't cover all mode bits, perform a RMW cycle. * gcc.dg/torture/pr52419.c: New test. Added: trunk/gcc/testsuite/gcc.dg/torture/pr52419.c Modified: trunk/gcc/ChangeLog trunk/gcc/expr.c trunk/gcc/testsuite/ChangeLog