From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 45940 invoked by alias); 25 Sep 2015 17:26:14 -0000 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 Received: (qmail 45931 invoked by uid 89); 25 Sep 2015 17:26:14 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-3.5 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD,SPF_HELO_PASS autolearn=ham version=3.3.2 X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-GCM-SHA384 encrypted) ESMTPS; Fri, 25 Sep 2015 17:26:08 +0000 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 391768E71B for ; Fri, 25 Sep 2015 17:26:07 +0000 (UTC) Received: from [10.3.112.10] ([10.3.112.10]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t8PHQ5sP002482; Fri, 25 Sep 2015 13:26:06 -0400 Subject: Re: patch for PR61578 To: Jeff Law , gcc-patches References: <56045FF8.6070106@redhat.com> <56057CE0.2050103@redhat.com> From: Vladimir Makarov Message-ID: <560583AD.70407@redhat.com> Date: Fri, 25 Sep 2015 17:59:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 MIME-Version: 1.0 In-Reply-To: <56057CE0.2050103@redhat.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes X-SW-Source: 2015-09/txt/msg02008.txt.bz2 On 09/25/2015 12:57 PM, Jeff Law wrote: > On 09/24/2015 02:41 PM, Vladimir Makarov wrote: >> The following patch solves the 2nd case of >> >> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61578 >> >> I did a lot of benchmarking of different heuristics in hard reg cost >> propagation in IRA. This is the best what I found. The patch improves >> stably code size of SPEC2000 and its score although it is not that >> significant. >> >> The patch was tested and bootstrapped on x86-64. >> >> Committed as rev. 228097. >> >> 2015-09-24 Vladimir Makarov >> >> PR target/61578 >> * ira-color.c (update_allocno_cost): Add parameter. >> (update_costs_from_allocno): Decrease conflict cost. Pass >> the new >> parameter. > FWIW, I did a quick scan for some of those old BZs. None were > improved. Sigh. > Thanks for checking them, Jeff. I don't think the work on PR61578 has been finished. I guess people will present other cases which should be improved and may be their solutions will solve the other PRs.