From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25830 invoked by alias); 10 Jun 2011 17:56:51 -0000 Received: (qmail 25822 invoked by uid 22791); 10 Jun 2011 17:56:51 -0000 X-SWARE-Spam-Status: No, hits=-1.8 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,SPF_HELO_PASS,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from smtp-out.google.com (HELO smtp-out.google.com) (216.239.44.51) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 10 Jun 2011 17:56:37 +0000 Received: from wpaz24.hot.corp.google.com (wpaz24.hot.corp.google.com [172.24.198.88]) by smtp-out.google.com with ESMTP id p5AHuaiH004743 for ; Fri, 10 Jun 2011 10:56:36 -0700 Received: from gxk27 (gxk27.prod.google.com [10.202.11.27]) by wpaz24.hot.corp.google.com with ESMTP id p5AHuB7I031089 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Fri, 10 Jun 2011 10:56:35 -0700 Received: by gxk27 with SMTP id 27so2477181gxk.29 for ; Fri, 10 Jun 2011 10:56:35 -0700 (PDT) MIME-Version: 1.0 Received: by 10.151.42.9 with SMTP id u9mr3440681ybj.244.1307728595227; Fri, 10 Jun 2011 10:56:35 -0700 (PDT) Received: by 10.151.26.21 with HTTP; Fri, 10 Jun 2011 10:56:35 -0700 (PDT) In-Reply-To: References: <20110610174509.076F8C4159@rong.mtv.corp.google.com> Date: Fri, 10 Jun 2011 18:17:00 -0000 Message-ID: Subject: Re: [google] limit excessive load/store motions (issue4563044) From: Rong Xu To: Diego Novillo Cc: reply@codereview.appspotmail.com, gcc-patches@gcc.gnu.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-System-Of-Record: true 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: 2011-06/txt/msg00869.txt.bz2 This is for google/main for now. This is a port from my work in 4.4.3. I may need to rework the register pressure estimation (try to see if I can reuse the function in trunk) before submitting to trunk. -Rong On Fri, Jun 10, 2011 at 10:52 AM, Diego Novillo wrote: > On Fri, Jun 10, 2011 at 10:45, Rong Xu wrote: >> Use a counter to avoid excessive load/store motions in tree and RTL leve= l. >> This recovers some of the performance loss in FDO mode for openssl. > > Rong, is this for trunk or google/main? =A0If it's for trunk, please > make sure you mark it as such. > > OK for google/main for now. > > > Diego. >