Return-Path: Delivered-To: apmail-harmony-commits-archive@www.apache.org Received: (qmail 761 invoked from network); 30 Oct 2008 12:32:05 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 30 Oct 2008 12:32:05 -0000 Received: (qmail 12427 invoked by uid 500); 30 Oct 2008 12:32:10 -0000 Delivered-To: apmail-harmony-commits-archive@harmony.apache.org Received: (qmail 12408 invoked by uid 500); 30 Oct 2008 12:32:10 -0000 Mailing-List: contact commits-help@harmony.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@harmony.apache.org Delivered-To: mailing list commits@harmony.apache.org Received: (qmail 12394 invoked by uid 99); 30 Oct 2008 12:32:10 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 30 Oct 2008 05:32:10 -0700 X-ASF-Spam-Status: No, hits=-2000.0 required=10.0 tests=ALL_TRUSTED X-Spam-Check-By: apache.org Received: from [140.211.11.140] (HELO brutus.apache.org) (140.211.11.140) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 30 Oct 2008 12:31:03 +0000 Received: from brutus (localhost [127.0.0.1]) by brutus.apache.org (Postfix) with ESMTP id 4CE49234C252 for ; Thu, 30 Oct 2008 05:31:44 -0700 (PDT) Message-ID: <1602782670.1225369904313.JavaMail.jira@brutus> Date: Thu, 30 Oct 2008 05:31:44 -0700 (PDT) From: "Xiaoming Gu (JIRA)" To: commits@harmony.apache.org Subject: [jira] Updated: (HARMONY-5826) [drlvm][jit][opt][performance] Magic for java.math.Multiplication.unsignedMultAdd2 In-Reply-To: <2034667058.1210762195670.JavaMail.jira@brutus> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org [ https://issues.apache.org/jira/browse/HARMONY-5826?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Xiaoming Gu updated HARMONY-5826: --------------------------------- Attachment: H5826-V4.patch This message is for V4 patch. In this patch LIR local constant/copy propagation is added in Ia32EarlyPropagation.cpp. Previous propagation only works for operands that are defined only once in a function. With local propagation, two unnecessary MUL are both gone. If we call "early_prop, peephole" two more times in server.emconf, other unnecessary instructions (XOR and ADD) are gone too. With some testings on crypto.rsa, I find only partial improvement got compared with the patch about api magic. I'm studying the reason now. > [drlvm][jit][opt][performance] Magic for java.math.Multiplication.unsignedMultAdd2 > ---------------------------------------------------------------------------------- > > Key: HARMONY-5826 > URL: https://issues.apache.org/jira/browse/HARMONY-5826 > Project: Harmony > Issue Type: Improvement > Components: DRLVM > Reporter: Aleksey Shipilev > Attachments: H5826-V2.patch, H5826-V3.patch, H5826-V4.patch, vm-jit-math-unsignedMultAdd2-magic-rc1.patch > > > Implementation of magic for java.math.Multiplication.unsignedMultAdd2, extracted in HARMONY-5825. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.