From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3181 invoked by alias); 30 Oct 2012 13:47:52 -0000 Received: (qmail 3053 invoked by uid 22791); 30 Oct 2012 13:47:49 -0000 X-SWARE-Spam-Status: No, hits=-4.2 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,KHOP_RCVD_TRUST,RCVD_IN_DNSWL_LOW,RCVD_IN_HOSTKARMA_YE X-Spam-Check-By: sourceware.org Received: from mail-ee0-f47.google.com (HELO mail-ee0-f47.google.com) (74.125.83.47) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 30 Oct 2012 13:47:20 +0000 Received: by mail-ee0-f47.google.com with SMTP id t10so181577eei.20 for ; Tue, 30 Oct 2012 06:47:19 -0700 (PDT) MIME-Version: 1.0 Received: by 10.14.173.195 with SMTP id v43mr72906694eel.39.1351604839678; Tue, 30 Oct 2012 06:47:19 -0700 (PDT) Received: by 10.14.213.8 with HTTP; Tue, 30 Oct 2012 06:47:19 -0700 (PDT) Date: Tue, 30 Oct 2012 13:47:00 -0000 Message-ID: Subject: Question on load motion in GCSE From: "Bin.Cheng" To: gcc@gcc.gnu.org Content-Type: text/plain; charset=ISO-8859-1 X-IsSubscribed: yes Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org X-SW-Source: 2012-10/txt/msg00454.txt.bz2 Hi, When doing load motion in GCSE, it depends on different simple memory refers in pre_ldst_table won't clobber(alias to) each other. I am assuming function simple_mem is the answer to this question, but what I don't understand is how simple_mem can make sure of this? Did I understand the load motion in a wrong way? Please help. Thanks. -- Best Regards.