From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 17216 invoked by alias); 24 Aug 2011 07:38:20 -0000 Received: (qmail 17031 invoked by uid 22791); 24 Aug 2011 07:38:18 -0000 X-SWARE-Spam-Status: No, hits=-1.6 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,SPF_FAIL X-Spam-Check-By: sourceware.org Received: from smtp-vbr16.xs4all.nl (HELO smtp-vbr16.xs4all.nl) (194.109.24.36) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 24 Aug 2011 07:37:52 +0000 Received: from [192.168.1.68] (teejay.xs4all.nl [213.84.119.160]) (authenticated bits=0) by smtp-vbr16.xs4all.nl (8.13.8/8.13.8) with ESMTP id p7O7bnuX020836 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 24 Aug 2011 09:37:50 +0200 (CEST) (envelope-from vries@codesourcery.com) Message-ID: <4E54AA90.1020809@codesourcery.com> Date: Wed, 24 Aug 2011 09:00:00 -0000 From: Tom de Vries User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.18) Gecko/20110617 Lightning/1.0b2 Thunderbird/3.1.11 MIME-Version: 1.0 To: Ian Lance Taylor CC: Richard Guenther , Steven Bosscher , gcc-patches@gcc.gnu.org Subject: Re: [PATCH, PR43864] Gimple level duplicate block cleanup. References: <4DEF4408.4040001@codesourcery.com> <4DF24C2C.7080808@codesourcery.com> <4E1C3A19.8060706@codesourcery.com> <4E232ADD.3020803@codesourcery.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org X-SW-Source: 2011-08/txt/msg01969.txt.bz2 On 07/22/2011 05:36 PM, Richard Guenther wrote: > That said - I'm reasonably happy with the pass now, but it's rather large > (this review took 40min again ...) so I appreciate a second look from > somebody else. > Ian, Do you have a moment to give a second look to a gimple CFG optimization? The optimization removes duplicate basic blocks and reduces code size by 1-2%. The latest patch is posted at http://gcc.gnu.org/ml/gcc-patches/2011-08/msg01602.html. Thanks, - Tom