From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 1236 invoked by alias); 4 Jan 2011 11:58:42 -0000 Received: (qmail 1227 invoked by uid 22791); 4 Jan 2011 11:58:42 -0000 X-SWARE-Spam-Status: No, hits=-2.9 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; Tue, 04 Jan 2011 11:58:38 +0000 From: "irar at il dot ibm.com" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/47139] [4.6 Regression] ice in process_use, at tree-vect-stmts.c:290 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: normal X-Bugzilla-Who: irar at il dot ibm.com X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: irar at il dot ibm.com X-Bugzilla-Target-Milestone: 4.6.0 X-Bugzilla-Changed-Fields: Status CC AssignedTo 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: Tue, 04 Jan 2011 11:58:00 -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: 2011-01/txt/msg00260.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47139 Ira Rosen changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED CC| |irar at il dot ibm.com AssignedTo|unassigned at gcc dot |irar at il dot ibm.com |gnu.org | --- Comment #3 from Ira Rosen 2011-01-04 11:58:35 UTC --- This shouldn't be recognized as reduction, because the value of the one before last iteration is used outside the loop. I'll add this check to reduction detection. Ira