From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13906 invoked by alias); 8 Apr 2011 00:16:06 -0000 Received: (qmail 13874 invoked by uid 22791); 8 Apr 2011 00:16:01 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,TW_NX 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; Fri, 08 Apr 2011 00:15:58 +0000 From: "xunxun1982 at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/48172] [4.5/4.6/4.7 Regression] incorrect vectorization of loop in GCC 4.5.* with -O3 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: wrong-code X-Bugzilla-Severity: critical X-Bugzilla-Who: xunxun1982 at gmail dot com X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.5.3 X-Bugzilla-Changed-Fields: CC 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 Date: Fri, 08 Apr 2011 00:16:00 -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 X-SW-Source: 2011-04/txt/msg00828.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48172 PcX changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |xunxun1982 at gmail dot com --- Comment #6 from PcX 2011-04-08 00:15:36 UTC --- Using mingw gcc4.5.2, the situation is not the same. I found that when I use -O3, the result is pass. When I use -O3 -march=native, the result is "COMPILER BUG: array[1025] should be 98177 but is 0".