From owner-cvs-src@FreeBSD.ORG  Fri Apr  8 06:14:28 2005
Return-Path: <owner-cvs-src@FreeBSD.ORG>
Delivered-To: cvs-src@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 3974416A4CE; Fri,  8 Apr 2005 06:14:28 +0000 (GMT)
Received: from cs.rice.edu (cs.rice.edu [128.42.1.30])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 04D9943D2D; Fri,  8 Apr 2005 06:14:28 +0000 (GMT)
	(envelope-from alc@cs.rice.edu)
Received: from localhost (calypso.cs.rice.edu [128.42.1.127])
	by cs.rice.edu (Postfix) with ESMTP id 949E24A9A8;
	Fri,  8 Apr 2005 01:14:27 -0500 (CDT)
Received: from cs.rice.edu ([128.42.1.30])
 by localhost (calypso.cs.rice.edu [128.42.1.127]) (amavisd-new, port 10024)
 with LMTP id 19932-01-5; Fri,  8 Apr 2005 01:14:27 -0500 (CDT)
Received: by cs.rice.edu (Postfix, from userid 19572)
	id F36A04A9A0; Fri,  8 Apr 2005 01:14:26 -0500 (CDT)
Date: Fri, 8 Apr 2005 01:14:26 -0500
From: Alan Cox <alc@cs.rice.edu>
To: Alan Cox <alc@FreeBSD.org>
Message-ID: <20050408061426.GH20275@cs.rice.edu>
References: <200504080515.j385FtbX016388@repoman.freebsd.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <200504080515.j385FtbX016388@repoman.freebsd.org>
User-Agent: Mutt/1.4.2i
X-Virus-Scanned: by amavis-2.2.1 at cs.rice.edu
cc: cvs-src@FreeBSD.org
cc: src-committers@FreeBSD.org
cc: cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/lib/libc/amd64/string Makefile.inc bcmp.S
	memcmp.S
X-BeenThere: cvs-src@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: CVS commit messages for the src tree <cvs-src.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src>,
	<mailto:cvs-src-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src>
List-Post: <mailto:cvs-src@freebsd.org>
List-Help: <mailto:cvs-src-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src>,
	<mailto:cvs-src-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 08 Apr 2005 06:14:28 -0000

On Fri, Apr 08, 2005 at 05:15:55AM +0000, Alan Cox wrote:
> alc         2005-04-08 05:15:55 UTC
> 
>   FreeBSD src repository
> 
>   Modified files:
>     lib/libc/amd64/string Makefile.inc 
>   Added files:
>     lib/libc/amd64/string bcmp.S memcmp.S 
>   Log:
>   Add machine-specific, optimized implementations of bcmp and memcmp.
>   
>   PR: 73111
>   Submitted by: Ville-Pertti Keinonen <will@iki.fi> (taken from NetBSD)
>   MFC after: 3 weeks
>   
>   Revision  Changes    Path
>   1.2       +1 -1      src/lib/libc/amd64/string/Makefile.inc
>   1.1       +25 -0     src/lib/libc/amd64/string/bcmp.S (new)
>   1.1       +41 -0     src/lib/libc/amd64/string/memcmp.S (new)

It is worth noting that by default the current version of gcc
automatically inlines its own implementation of these functions.  That
implementation is slower than this new libc implementation for strings
of non-trivial length.

Alan