From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7935 invoked by alias); 10 May 2010 08:50:14 -0000 Received: (qmail 7884 invoked by uid 22791); 10 May 2010 08:50:11 -0000 X-SWARE-Spam-Status: No, hits=-5.5 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_HI,SPF_HELO_PASS,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 10 May 2010 08:50:00 +0000 Received: from int-mx05.intmail.prod.int.phx2.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.18]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o4A8nn8v012830 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 10 May 2010 04:49:50 -0400 Received: from [10.36.10.147] (vpn2-10-147.ams2.redhat.com [10.36.10.147]) by int-mx05.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o4A8nlRC005420; Mon, 10 May 2010 04:49:48 -0400 Message-ID: <4BE7C8AB.4030209@redhat.com> Date: Mon, 10 May 2010 08:50:00 -0000 From: Nick Clifton User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.9) Gecko/20100330 Fedora/3.0.4-1.fc12 Thunderbird/3.0.4 MIME-Version: 1.0 To: Bernd Schmidt CC: GCC Patches Subject: Re: ARM patch: Thumb2 reorg References: <4BD80169.7070206@codesourcery.com> In-Reply-To: <4BD80169.7070206@codesourcery.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes 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: 2010-05/txt/msg00632.txt.bz2 Hi Bernd, > This introduces a Thumb2-specific reorg pass. > > * config/arm/arm.c (thumb2_reorg): New function. > (arm_reorg): Call it. > * config/arm/thumb2.md (define_peephole2 for flag clobbering > arithmetic operations): Delete. Approved - please apply. Note - for the record I have had an offline conversation with Bernd about this patch and I now agree that, despite the possibility pointed out by Richard that it could introduce performance regressions in certain cases, it is still worthwhile overall. Cheers Nick