From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 18244 invoked by alias); 19 Jan 2004 22:09:00 -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 18232 invoked from network); 19 Jan 2004 22:08:58 -0000 Received: from unknown (HELO mail13.ha.ovh.net) (213.186.33.51) by sources.redhat.com with SMTP; 19 Jan 2004 22:08:58 -0000 Received: (qmail 28154 invoked by uid 503); 19 Jan 2004 22:09:15 -0000 Received: from d213-103-42-181.cust.tele2.fr (HELO ?192.168.0.108?) (laurent%guerby.net@213.103.42.181) by ns0.ovh.net with SMTP; 19 Jan 2004 22:09:15 -0000 Subject: Re: gcc 3.5 integration branch proposal From: Laurent GUERBY To: Eric Botcazou Cc: Eric Christopher , Robert Dewar , Scott Robert Ladd , Gabriel Dos Reis , Nick Burrett , Marc Espie , geoffk@apple.com, gcc@gcc.gnu.org In-Reply-To: <200401192246.52526.ebotcazou@libertysurf.fr> References: <90200277-4301-11D8-BDBD-000A95B1F520@apple.com> <200401192207.58846.ebotcazou@libertysurf.fr> <1074546942.11041.8.camel@dzur.sfbay.redhat.com> <200401192246.52526.ebotcazou@libertysurf.fr> Content-Type: text/plain Message-Id: <1074550095.28477.35.camel@pc> Mime-Version: 1.0 Date: Mon, 19 Jan 2004 22:09:00 -0000 Content-Transfer-Encoding: 7bit X-SW-Source: 2004-01/txt/msg01391.txt.bz2 On Mon, 2004-01-19 at 22:46, Eric Botcazou wrote: > I think we can both agree that all is in the balance between code quality > improvement and compilation speed degradation. FWIW, I'd gladly accept compilation being 2-3 times slower for a 5-10% gain in execution speed at high optimisation levels, from both my home user and work user point of view. At low optimisation levels, I'd love a switch that makes optimisations that are somewhat cheap relatively to -O2/3 at the compile time level, reduce generated code and debug information size for faster linking than -O0 and still allow perfect debugging ("-Od"?). BTW, people with old machines always have the choice of staying with old software too. Laurent