From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13493 invoked by alias); 27 Sep 2002 15:08:32 -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 13414 invoked from network); 27 Sep 2002 15:08:29 -0000 Received: from unknown (HELO mail.oek.dk) (62.61.154.25) by sources.redhat.com with SMTP; 27 Sep 2002 15:08:29 -0000 Received: from k801.oek.dk ([10.211.8.8]) by mail.oek.dk with esmtp (Exim 3.35 #1 (Debian)) id 17uwjE-0002jF-00; Fri, 27 Sep 2002 17:08:28 +0200 Subject: Re: Optimization and Warning documentation From: David Rasmussen To: gcc@gcc.gnu.org Cc: luda_s@sina.com In-Reply-To: <20020927125536.23083gmx1@mx018-rz3.gmx.net> References: <20020927125536.23083gmx1@mx018-rz3.gmx.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Date: Fri, 27 Sep 2002 08:29:00 -0000 Message-Id: <1033139308.4064.5.camel@k801.oek.dk> Mime-Version: 1.0 X-SW-Source: 2002-09/txt/msg01106.txt.bz2 On Fri, 2002-09-27 at 14:56, =E9=99=86=E4=BB=B2=E8=BE=BE wrote: > Deardavid.rasmussen=C2=A3=C2=A1 > You can download the gcc manual from http://gcc.gnu.org. > You can look up them in the comand option section of the gcc manual. > =C2=A1=C2=A1=C2=A1=C2=A1 The problem is that many things are not stated explicitly. For example, does -w really enable _all_ warnings, every last one of them? And does any of the optimizations (O2, O3) include -foptimize-sibling-calls for example? It is not stated explicitly what options -O3 implies. /David