From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14701 invoked by alias); 28 Oct 2010 19:52:36 -0000 Received: (qmail 14690 invoked by uid 22791); 28 Oct 2010 19:52:35 -0000 X-SWARE-Spam-Status: No, hits=-2.4 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,MISSING_MID 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; Thu, 28 Oct 2010 19:52:31 +0000 From: "irar at il dot ibm.com" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/46213] [4.6 Regression] gfortran.dg/aliasing_array_result_1.f90 ICE: in vectorizable_reduction, at tree-vect-loop.c:4046 with custom compiler flags 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: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: irar at il dot ibm.com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Status Last reconfirmed CC Ever Confirmed 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: Thu, 28 Oct 2010 19:52:00 -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: 2010-10/txt/msg02442.txt.bz2 Message-ID: <20101028195200.jjMJxHy2gh_Tv8gP5HLVyOQmGlPuTeyONyBUkLwDhbM@z> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46213 Ira Rosen changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2010.10.28 19:52:01 CC| |irar at il dot ibm.com, | |matz at gcc dot gnu.org Ever Confirmed|0 |1 --- Comment #2 from Ira Rosen 2010-10-28 19:52:01 UTC --- Looks like the problem is in reduction with MINUS_EXPR. The reduction here is res = a[i] - res and not res = res - a[i] which we intend to support. Ira