From owner-freebsd-current@FreeBSD.ORG Wed May 9 19:30:15 2007 Return-Path: X-Original-To: current@freebsd.org Delivered-To: freebsd-current@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 8BBCF16A402; Wed, 9 May 2007 19:30:15 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (troutmask.apl.washington.edu [128.208.78.105]) by mx1.freebsd.org (Postfix) with ESMTP id 6F2B613C43E; Wed, 9 May 2007 19:30:15 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (localhost.apl.washington.edu [127.0.0.1]) by troutmask.apl.washington.edu (8.14.1/8.13.8) with ESMTP id l49JRA2E097697; Wed, 9 May 2007 12:27:10 -0700 (PDT) (envelope-from sgk@troutmask.apl.washington.edu) Received: (from sgk@localhost) by troutmask.apl.washington.edu (8.14.1/8.13.8/Submit) id l49JRAoK097696; Wed, 9 May 2007 12:27:10 -0700 (PDT) (envelope-from sgk) Date: Wed, 9 May 2007 12:27:10 -0700 From: Steve Kargl To: Luoqi Chen Message-ID: <20070509192710.GA97664@troutmask.apl.washington.edu> References: <336D7181C830FF4E8B176A94FFB3F8D83356BD@ex01.briontech.com> <200705091202.04699.luoqi@freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200705091202.04699.luoqi@freebsd.org> User-Agent: Mutt/1.4.2.2i Cc: current@freebsd.org Subject: Re: rint() bug X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 May 2007 19:30:15 -0000 On Wed, May 09, 2007 at 12:02:03PM -0700, Luoqi Chen wrote: > On Wednesday 09 May 2007 07:55:38 -0700 Steve Kargl wrote: > > On Wed, May 09, 2007 at 02:16:32AM -0700, Luoqi Chen wrote: > > > Does anyone know about this particular bug (and have a plan to fix it)? > > > http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4831589 > > > > On i386 and amd64, FreeBSD uses assembly code contributed > > by David Schultz. On platforms that use fdlibm code, the > > bug was fixed 17 months ago. cvsweb is a wonderful tool. > > > > http://www.freebsd.org/cgi/cvsweb.cgi/src/lib/msun/src/s_rint.c > > Thanks, Steve. I forgot to check with the CVS, I was looking at 6-R branch, > which still doesn't have Bruce's fix (I guess I should have posted my > question to -stable instead). Any time table for a merge? > > I looked at the latest msun/amd64, there was no assembly version for rint(). > Since C99 is not supported everywhere (4.x systems, e.g.), I still have to > use rint() for portability. Does anyone plan to write a piece of assembly code > for rint() on amd64? Besides the bug, the C version is noticeably slower. > David Schultz (das) wrote a amd64 version of lrint(). If you can use that, then you should consider doing so. lrint() is in 6-stable. As to merging changes into 6-stable, I have no idea if or when that may happen. -- Steve