From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 28602 invoked by alias); 18 May 2012 12:32:56 -0000 Received: (qmail 28592 invoked by uid 22791); 18 May 2012 12:32:54 -0000 X-SWARE-Spam-Status: No, hits=-4.2 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED 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, 18 May 2012 12:32:42 +0000 From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/53355] Autovectorization of a simple loop could be improved. Date: Fri, 18 May 2012 14:21:00 -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: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- 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: 2012-05/txt/msg01801.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53355 --- Comment #5 from Richard Guenther 2012-05-18 12:32:11 UTC --- The following testcase (extracted from PR53346, which stores zero though) shows another case of slowness void foo (int *p, int n) { int i; for (i = 0; i < n; ++i) p[i] = 1; }