From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21015 invoked by alias); 14 Jul 2011 11:20:42 -0000 Received: (qmail 21005 invoked by uid 22791); 14 Jul 2011 11:20:41 -0000 X-SWARE-Spam-Status: No, hits=-1.7 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from smtp.ispras.ru (HELO smtp.ispras.ru) (83.149.198.202) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 14 Jul 2011 11:20:27 +0000 Received: from [10.10.3.52] (winnie.ispras.ru [83.149.198.236]) by smtp.ispras.ru (Postfix) with ESMTP id 220AD5D4051; Thu, 14 Jul 2011 15:13:01 +0400 (MSD) Message-ID: <4E1ED106.6030600@ispras.ru> Date: Thu, 14 Jul 2011 11:29:00 -0000 From: Andrey Belevantsev User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:5.0) Gecko/20110624 Thunderbird/5.0 MIME-Version: 1.0 To: Bernd Schmidt CC: GCC Patches , Eric Botcazou , Steve Ellcey , "Vladimir N. Makarov" Subject: Re: Correct fix for scheduler bug PR11320 References: <4E1EBEFE.3080002@codesourcery.com> In-Reply-To: <4E1EBEFE.3080002@codesourcery.com> Content-Type: text/plain; charset=KOI8-R; 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: 2011-07/txt/msg01133.txt.bz2 Hello Bernd, FWIW, we have discussed your change with Alexander and we think you are right about the scheduler changes. One question is: On 14.07.2011 14:03, Bernd Schmidt wrote: > --- gcc/sched-deps.c (revision 176195) > +++ gcc/sched-deps.c (working copy) > @@ -568,7 +568,7 @@ > (rev1==rev2 > ? reversed_comparison_code (cond2, NULL) > : GET_CODE (cond2)) > - && XEXP (cond1, 0) == XEXP (cond2, 0) > + && rtx_equal_p (XEXP (cond1, 0), XEXP (cond2, 0)) > && XEXP (cond1, 1) == XEXP (cond2, 1)) > return 1; > return 0; this hunk from conditions_mutex_p seems to be unrelated? Andrey