From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 32297 invoked by alias); 14 Feb 2012 18:01:18 -0000 Received: (qmail 32227 invoked by uid 22791); 14 Feb 2012 18:01:16 -0000 X-SWARE-Spam-Status: No, hits=-1.6 required=5.0 tests=AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from relay1.mentorg.com (HELO relay1.mentorg.com) (192.94.38.131) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 14 Feb 2012 18:01:03 +0000 Received: from svr-orw-exc-10.mgc.mentorg.com ([147.34.98.58]) by relay1.mentorg.com with esmtp id 1RxMgX-0003Q7-Kk from Andrew_Stubbs@mentor.com ; Tue, 14 Feb 2012 10:01:01 -0800 Received: from SVR-IES-FEM-01.mgc.mentorg.com ([137.202.0.104]) by SVR-ORW-EXC-10.mgc.mentorg.com with Microsoft SMTPSVC(6.0.3790.4675); Tue, 14 Feb 2012 10:00:28 -0800 Received: from [172.30.11.62] (137.202.0.76) by SVR-IES-FEM-01.mgc.mentorg.com (137.202.0.104) with Microsoft SMTP Server id 14.1.289.1; Tue, 14 Feb 2012 18:00:59 +0000 Message-ID: <4F3AA159.7040707@codesourcery.com> Date: Tue, 14 Feb 2012 18:02:00 -0000 From: Andrew Stubbs User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:9.0) Gecko/20111229 Thunderbird/9.0 MIME-Version: 1.0 To: Richard Earnshaw CC: "gcc-patches@gcc.gnu.org" , "patches@linaro.org" Subject: Re: [PATCH][ARM] Improve use of conditional execution in thumb mode. References: <4F3A91A0.3040209@codesourcery.com> <4F3A9A44.2080105@arm.com> <4F3A9B68.10806@arm.com> In-Reply-To: <4F3A9B68.10806@arm.com> Content-Type: text/plain; charset="UTF-8"; format=flowed 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: 2012-02/txt/msg00734.txt.bz2 On Tue 14 Feb 2012 17:35:36 GMT, Richard Earnshaw wrote: >> Bernds checked in a patch last year (or maybe even before that) to make >> the selection of flags clobbered insns run very late (certainly after >> condexec had run), so I'm not sure why you're not seeing this. > > Hm, you mentioned some peepholes. Try removing them.... Hmmm, it seems you're right. The machine reorg pass now takes care of this. Well ... that was easy! Here's a patch to remove the obsolete peepholes. I've confirmed it works with the testcase. OK? Andrew