From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <libc-hacker-return-9077-listarch-libc-hacker=sources.redhat.com@sourceware.org>
Received: (qmail 24086 invoked by alias); 24 Sep 2006 20:18:14 -0000
Received: (qmail 24069 invoked by uid 22791); 24 Sep 2006 20:18:14 -0000
X-Spam-Check-By: sourceware.org
Received: from e5.ny.us.ibm.com (HELO e5.ny.us.ibm.com) (32.97.182.145)
    by sourceware.org (qpsmtpd/0.31) with ESMTP; Sun, 24 Sep 2006 20:18:13 +0000
Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236])
	by e5.ny.us.ibm.com (8.13.8/8.12.11) with ESMTP id k8OKIAis002759
	for <libc-hacker@sources.redhat.com>; Sun, 24 Sep 2006 16:18:10 -0400
Received: from d01av02.pok.ibm.com (d01av02.pok.ibm.com [9.56.224.216])
	by d01relay04.pok.ibm.com (8.13.6/8.13.6/NCO v8.1.1) with ESMTP id k8OKIAj0271186
	for <libc-hacker@sources.redhat.com>; Sun, 24 Sep 2006 16:18:10 -0400
Received: from d01av02.pok.ibm.com (loopback [127.0.0.1])
	by d01av02.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id k8OKIAAD001152
	for <libc-hacker@sources.redhat.com>; Sun, 24 Sep 2006 16:18:10 -0400
Received: from [9.10.242.60] (9-10-242-60.rchland.ibm.com [9.10.242.60])
	by d01av02.pok.ibm.com (8.12.11.20060308/8.12.11) with ESMTP id k8OKI8Lp001100;
	Sun, 24 Sep 2006 16:18:09 -0400
Message-ID: <4516E681.8000903@us.ibm.com>
Date: Sun, 24 Sep 2006 20:18:00 -0000
From: Steven Munroe <munroesj@us.ibm.com>
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.13) Gecko/20060411
MIME-Version: 1.0
To: Jakub Jelinek <jakub@redhat.com>
CC: Ulrich Drepper <drepper@redhat.com>,
        Glibc hackers <libc-hacker@sources.redhat.com>
Subject: Re: [PATCH] Update ppc ulps
References: <20060924101331.GV4556@sunsite.mff.cuni.cz>
In-Reply-To: <20060924101331.GV4556@sunsite.mff.cuni.cz>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
Mailing-List: contact libc-hacker-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Subscribe: <mailto:libc-hacker-subscribe@sourceware.org>
List-Archive: <http://sourceware.org/ml/libc-hacker/>
List-Post: <mailto:libc-hacker@sourceware.org>
List-Help: <mailto:libc-hacker-help@sourceware.org>, <http://sourceware.org/ml/#faqs>
Sender: libc-hacker-owner@sourceware.org
X-SW-Source: 2006-09/txt/msg00048.txt.bz2

Jakub Jelinek wrote:

>Hi!
>
>I'm getting on both ppc and ppc64 2.125 ulp error on clog10 (> 2ulp
>allowed), 0.75ulp on y0 1/8 and 1ulp on imag csinh (-2-3i).
>
>  
>
Which gcc are you using? I found that gcc-4.2 or gcc-4.1.1 with the 
reassociation patch backport causes upls errors in ppc that are not 
there for just gcc-4.1.1.

I have not had time to tract this down to a simple test case that I can 
hand to the gcc folks.