From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2917 invoked by alias); 7 Jan 2012 12:08:43 -0000 Received: (qmail 2905 invoked by uid 22791); 7 Jan 2012 12:08:42 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,TW_GJ 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; Sat, 07 Jan 2012 12:08:30 +0000 From: "gjl at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/51782] Missing address-space information leads to wrong code Date: Sat, 07 Jan 2012 12:08:00 -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-Keywords: addr-space, wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: gjl at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned 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: 2012-01/txt/msg00717.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51782 --- Comment #2 from Georg-Johann Lay 2012-01-07 12:08:25 UTC --- Created attachment 26263 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26263 a-bug.s (assembler output) read_rgb_ok uses LPM instructions to read data (okay) read_rgb_bug uses LD/LDD instructions to read data (wrong)