From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15443 invoked by alias); 4 Aug 2010 13:21:58 -0000 Received: (qmail 14415 invoked by uid 48); 4 Aug 2010 13:21:34 -0000 Date: Wed, 04 Aug 2010 13:21:00 -0000 Message-ID: <20100804132134.14414.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/45178] CDDCE doesn't eliminate conditional code in infinite loop In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "rguenth 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: 2010-08/txt/msg00219.txt.bz2 ------- Comment #2 from rguenth at gcc dot gnu dot org 2010-08-04 13:21 ------- (In reply to comment #1) > Subject: Re: New: CDDCE doesn't eliminate > conditional code in infinite loop > > Hmm, so the problem is that we produce two alternating loops and both with > unknown number of iterations? > We might teach loop discovery to preffer single infinite loop over alternation > I guess. Yeah, that might help. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2010-08-04 13:21:34 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45178