From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 5186 invoked by alias); 25 Apr 2007 02:14:19 -0000 Received: (qmail 5143 invoked by uid 48); 25 Apr 2007 02:14:08 -0000 Date: Wed, 25 Apr 2007 02:14:00 -0000 Message-ID: <20070425021408.5142.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/30567] [4.2 Regression] -O3 optimizer bug In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "dberlin 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: 2007-04/txt/msg01838.txt.bz2 ------- Comment #25 from dberlin at gcc dot gnu dot org 2007-04-25 03:14 ------- (In reply to comment #23) > This is a regression. Danny? > It actually should get assigned anything as a points-to set, so the "bad" constraints are correct. We should also always get correct aliasing even if everything was assigned ANYTHING as a variable. Sadly, we don't in 4.2.0, as this case shows. I'm not going to get a chance to look at this for at least week, I have something taking priority this week. If you want to tackle it before then, I would suggest trying to see why we decide not to give the SFT's to the variable marked with anything. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30567