From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19793 invoked by alias); 19 Sep 2008 17:53:53 -0000 Received: (qmail 18180 invoked by uid 48); 19 Sep 2008 17:52:31 -0000 Date: Fri, 19 Sep 2008 17:53:00 -0000 Message-ID: <20080919175231.18179.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/37573] [4.4 Regression] gcc-4.4 regression: incorrect code generation with -O1 -ftree-vectorize In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "jakub at gcc dot gnu dot org" 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: 2008-09/txt/msg02269.txt.bz2 ------- Comment #5 from jakub at gcc dot gnu dot org 2008-09-19 17:52 ------- The data dependence on the previous loop is clearly not considered, the loop is vectorized as if c on the rhs and c on the lhs were different non-overlapping arrays. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37573