From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22306 invoked by alias); 7 May 2003 02:46:01 -0000 Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-prs-owner@gcc.gnu.org Received: (qmail 22286 invoked by uid 71); 7 May 2003 02:46:01 -0000 Resent-Date: 7 May 2003 02:46:01 -0000 Resent-Message-ID: <20030507024601.22285.qmail@sources.redhat.com> Resent-From: gcc-gnats@gcc.gnu.org (GNATS Filer) Resent-Cc: gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org Resent-Reply-To: gcc-gnats@gcc.gnu.org, scott.duplichan@hp.com Received: (qmail 21759 invoked by uid 48); 7 May 2003 02:43:57 -0000 Message-Id: <20030507024357.21758.qmail@sources.redhat.com> Date: Wed, 07 May 2003 02:46:00 -0000 From: scott.duplichan@hp.com Reply-To: scott.duplichan@hp.com To: gcc-gnats@gcc.gnu.org X-Send-Pr-Version: gnatsweb-2.9.3 (1.1.1.1.2.31) Subject: optimization/10654: feature request: non-temporal store, 64-bit general purpose register X-SW-Source: 2003-05/txt/msg00435.txt.bz2 List-Id: >Number: 10654 >Category: optimization >Synopsis: feature request: non-temporal store, 64-bit general purpose register >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: support >Submitter-Id: net >Arrival-Date: Wed May 07 02:46:01 UTC 2003 >Closed-Date: >Last-Modified: >Originator: scott duplichan >Release: unknown-1.0 >Organization: >Environment: all >Description: Please forgive me if this is not the place for a feature request. Feature request: _mm_stream_si64 An intrinsic for non-temporal store of ordinary 64-bit data is needed. IA64, AMD64, and possible others support this natively. This type of store can achieve a 2X or so performance gain. >How-To-Repeat: On a system that supports native 64-bit registers, try to do a non-temporal store without using assembly language. >Fix: Implement an intrinsic function that stores a 64-bit general purpose register using a non-temporal store. >Release-Note: >Audit-Trail: >Unformatted: