From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 31598 invoked by alias); 26 May 2005 23:52:20 -0000 Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org Received: (qmail 31581 invoked by uid 22791); 26 May 2005 23:52:11 -0000 Received: from amdext4.amd.com (HELO amdext4.amd.com) (163.181.251.6) by sourceware.org (qpsmtpd/0.30-dev) with ESMTP; Thu, 26 May 2005 23:52:11 +0000 Received: from SAUSGW01.amd.com (sausgw01.amd.com [163.181.250.21]) by amdext4.amd.com (8.12.11/8.12.11/AMD) with ESMTP id j4QNo9NL016232; Thu, 26 May 2005 18:52:10 -0500 Received: from 163.181.250.1 by SAUSGW01.amd.com with ESMTP (AMD SMTP Relay (Email Firewall v6.1.0)); Thu, 26 May 2005 18:52:00 -0500 X-Server-Uuid: 8C3DB987-180B-4465-9446-45C15473FD3E Received: from sausexmb1.amd.com (SAUSEXMB1.amd.com [163.181.3.156]) by amdint2.amd.com (8.12.8/8.12.8/AMD) with ESMTP id j4QNpxc7004865; Thu, 26 May 2005 18:51:59 -0500 (CDT) Content-class: urn:content-classes:message MIME-Version: 1.0 Subject: RE: Sine and Cosine Accuracy Date: Fri, 27 May 2005 00:39:00 -0000 Message-ID: <84EA05E2CA77634C82730353CBE3A843028F45BE@SAUSEXMB1.amd.com> From: "Menezes, Evandro" To: "Scott Robert Ladd" , "Richard Henderson" cc: gcc@gcc.gnu.org X-WSS-ID: 6E88BEAA2UO2500271-01-01 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-SW-Source: 2005-05/txt/msg01464.txt.bz2 Scott,=20 > For a wide variety of applications, the hardware intrinsics=20 > provide both faster and more accurate results, when compared=20 > to the library functions. This is not true. Compare results on an x86 systems with those on an x86_6= 4 or ppc. As I said before, shortcuts were taken in x87 that sacrificed ac= curacy for the sake of speed initially and later of compatibility. HTH --=20 _______________________________________________________ Evandro Menezes AMD Austin, TX