From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 8655 invoked by alias); 30 Aug 2004 10:17:56 -0000 Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org Received: (qmail 8562 invoked from network); 30 Aug 2004 10:17:54 -0000 Received: from unknown (HELO Cantor.suse.de) (195.135.220.2) by sourceware.org with SMTP; 30 Aug 2004 10:17:54 -0000 Received: from extimap.suse.de (extimap.suse.de [195.135.220.6]) (using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits)) (No client certificate requested) by Cantor.suse.de (Postfix) with ESMTP id 495ACB3A4C8; Mon, 30 Aug 2004 12:17:05 +0200 (CEST) Received: from stevenb.home.suse.de (70-90.ipact.nl [82.210.90.70]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (Client did not present a certificate) by extimap.suse.de (Postfix) with ESMTP id DE1CF1CC4; Mon, 30 Aug 2004 12:17:04 +0200 (CEST) From: Steven Bosscher Organization: SUSE Labs To: "Giovanni Bajo" Subject: Re: GCC 3.5 Status (2004-08-29) Date: Mon, 30 Aug 2004 10:26:00 -0000 User-Agent: KMail/1.5.4 Cc: References: <4132641E.3030206@codesourcery.com> <200408300908.32374.stevenb@suse.de> <02df01c48e78$c1d50780$8f432597@bagio> In-Reply-To: <02df01c48e78$c1d50780$8f432597@bagio> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200408301217.06743.stevenb@suse.de> X-SW-Source: 2004-08/txt/msg01471.txt.bz2 On Monday 30 August 2004 12:04, Giovanni Bajo wrote: > Thanks for the update. Do you think it is feasable to have a special > version of DCE/CCP (or a special flag in them) so that they don't destroy > user variables, to be used at -O0? We discussed that, yes. You could look into how CCP propagates things like addresses and so on, and figure out other things that cause us to lose the user's variable. DCE is not a real problem. If CCP would just not turn so many statements into dead code, it would work ;-) Gr. Steven