From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15758 invoked by alias); 22 Oct 2009 06:33:18 -0000 Received: (qmail 15750 invoked by uid 22791); 22 Oct 2009 06:33:18 -0000 X-SWARE-Spam-Status: No, hits=-2.4 required=5.0 tests=AWL,BAYES_00,SPF_PASS X-Spam-Check-By: sourceware.org Received: from mail-yx0-f195.google.com (HELO mail-yx0-f195.google.com) (209.85.210.195) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 22 Oct 2009 06:33:14 +0000 Received: by yxe33 with SMTP id 33so10378616yxe.0 for ; Wed, 21 Oct 2009 23:33:12 -0700 (PDT) Received: by 10.150.119.27 with SMTP id r27mr14865711ybc.206.1256193192516; Wed, 21 Oct 2009 23:33:12 -0700 (PDT) Received: from yakj.usersys.redhat.com ([85.93.118.17]) by mx.google.com with ESMTPS id 13sm485392gxk.9.2009.10.21.23.33.09 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 21 Oct 2009 23:33:11 -0700 (PDT) Message-ID: <4ADFFCA2.1010206@gnu.org> Date: Thu, 22 Oct 2009 07:16:00 -0000 From: Paolo Bonzini User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.4pre) Gecko/20091014 Fedora/3.0-2.8.b4.fc11 Lightning/1.0pre Thunderbird/3.0b4 MIME-Version: 1.0 To: Ian Lance Taylor CC: swati raina , gcc@gcc.gnu.org Subject: Re: CFG,DFG References: <896212.96703.qm@web35703.mail.mud.yahoo.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org X-SW-Source: 2009-10/txt/msg00444.txt.bz2 On 10/22/2009 01:57 AM, Ian Lance Taylor wrote: > See cfg*.[ch] and df*.[ch]. Note that df*.[ch] only applies to RTL. > There is no clean way to extract the dependency information. On trees, the SSA def-use edges could be seen as (well, are) a DFG. Paolo