From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22431 invoked by alias); 14 Aug 2008 14:24:37 -0000 Received: (qmail 22415 invoked by uid 22791); 14 Aug 2008 14:24:35 -0000 X-Spam-Check-By: sourceware.org Received: from imag.imag.fr (HELO imag.imag.fr) (129.88.30.1) by sourceware.org (qpsmtpd/0.31) with ESMTP; Thu, 14 Aug 2008 14:23:53 +0000 Received: from pochette.imag.fr (pochette.imag.fr [129.88.34.232]) by imag.imag.fr (8.13.8/8.13.8) with ESMTP id m7EELx7M013138 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 14 Aug 2008 16:22:00 +0200 (CEST) Received: from pochette.imag.fr (localhost.imag.fr [127.0.0.1]) by pochette.imag.fr (8.13.8/8.13.8) with ESMTP id m7EENSoO017380 for ; Thu, 14 Aug 2008 16:23:28 +0200 Received: (from apache@localhost) by pochette.imag.fr (8.13.8/8.13.8/Submit) id m7EENSrJ017379 for gcc-help@gcc.gnu.org; Thu, 14 Aug 2008 16:23:28 +0200 Received: from www-cache-2.ujf-grenoble.fr (www-cache-2.ujf-grenoble.fr [193.54.238.42]) by webmail-ens.imag.fr (Horde MIME library) with HTTP; Thu, 14 Aug 2008 16:23:28 +0200 Message-ID: <20080814162328.xrdr5cwis04wsww0@webmail-ens.imag.fr> Date: Thu, 14 Aug 2008 18:05:00 -0000 From: collinr@ensisun.imag.fr To: gcc-help@gcc.gnu.org Subject: missing file in gcc-4.3.1 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes"; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: quoted-printable User-Agent: Internet Messaging Program (IMP) H3 (4.1.6) X-MI2S-Agent: webmail 2 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (imag.imag.fr [129.88.30.1]); Thu, 14 Aug 2008 16:22:00 +0200 (CEST) X-IMAG-MailScanner-Information: Please contact MI2S MIM for more information X-IMAG-MailScanner: Found to be clean X-IMAG-MailScanner-SpamCheck: X-IMAG-MailScanner-From: collinr@ensisun.imag.fr Mailing-List: contact gcc-help-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-help-owner@gcc.gnu.org X-SW-Source: 2008-08/txt/msg00144.txt.bz2 Good morning, I am working on gcc, and I am looking for information about "liveness=20=20 analysis". The manual gccint.pdf says on page 101 : "Life analysis This pass computes which pseudo-registers are live at each point in=20=20 the program, and makes the first instruction that uses a value point=20=20 at the instruction that computed the value. It then deletes=20=20 computations whose results are never used, and combines memory=20=20 references with add or subtract instructions to make autoincrement or=20=20 autodecrement addressing. The pass is located in ?flow.c?." However, I found flow.c in gcc-3.3, but not in gcc-4.3.1 Could you explain me that? Regards, R=E9mi Collin