From mboxrd@z Thu Jan  1 00:00:00 1970
Path: main.gmane.org!not-for-mail
From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: (elisp)Numbers
Date: Thu, 23 Oct 2003 14:38:07 -0400
Sender: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org
Message-ID: <E1ACkLX-0004jL-Sf@fencepost.gnu.org>
References: <200310210229.h9L2TGl12085@raven.dms.auburn.edu>
	<E1ACFFJ-0004gJ-6Y@fencepost.gnu.org>
	<9743-Wed22Oct2003174239+0200-eliz@elta.co.il>
Reply-To: rms@gnu.org
NNTP-Posting-Host: deer.gmane.org
X-Trace: sea.gmane.org 1066934937 9283 80.91.224.253 (23 Oct 2003 18:48:57 GMT)
X-Complaints-To: usenet@sea.gmane.org
NNTP-Posting-Date: Thu, 23 Oct 2003 18:48:57 +0000 (UTC)
Cc: teirllm@dms.auburn.edu, emacs-devel@gnu.org
Original-X-From: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Thu Oct 23 20:48:53 2003
Return-path: <emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org>
Original-Received: from quimby.gnus.org ([80.91.224.244])
	by deer.gmane.org with esmtp (Exim 3.35 #1 (Debian))
	id 1ACkVx-0001Li-00
	for <emacs-devel@deer.gmane.org>; Thu, 23 Oct 2003 20:48:53 +0200
Original-Received: from monty-python.gnu.org ([199.232.76.173])
	by quimby.gnus.org with esmtp (Exim 3.35 #1 (Debian))
	id 1ACkVx-000111-00
	for <emacs-devel@quimby.gnus.org>; Thu, 23 Oct 2003 20:48:53 +0200
Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org)
	by monty-python.gnu.org with esmtp (Exim 4.24)
	id 1ACkST-0003k1-Ln
	for emacs-devel@quimby.gnus.org; Thu, 23 Oct 2003 14:45:17 -0400
Original-Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.24)
	id 1ACkQS-0003DL-LU
	for emacs-devel@gnu.org; Thu, 23 Oct 2003 14:43:12 -0400
Original-Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.24)
	id 1ACkPw-00034y-BO
	for emacs-devel@gnu.org; Thu, 23 Oct 2003 14:43:11 -0400
Original-Received: from [199.232.76.164] (helo=fencepost.gnu.org)
	by monty-python.gnu.org with esmtp (Exim 4.24) id 1ACkPv-00034o-L2
	for emacs-devel@gnu.org; Thu, 23 Oct 2003 14:42:39 -0400
Original-Received: from rms by fencepost.gnu.org with local (Exim 4.24)
	id 1ACkLX-0004jL-Sf; Thu, 23 Oct 2003 14:38:07 -0400
Original-To: Eli Zaretskii <eliz@elta.co.il>
In-reply-to: <9743-Wed22Oct2003174239+0200-eliz@elta.co.il>
X-BeenThere: emacs-devel@gnu.org
X-Mailman-Version: 2.1.2
Precedence: list
List-Id: Emacs development discussions.  <emacs-devel.gnu.org>
List-Unsubscribe: <http://mail.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://mail.gnu.org/pipermail/emacs-devel>
List-Post: <mailto:emacs-devel@gnu.org>
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Subscribe: <http://mail.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=subscribe>
Errors-To: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org
Xref: main.gmane.org gmane.emacs.devel:17378
X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:17378

    If you say "gcc -S" and look at the code, don't you see the FSQRT
    instruction being followed by tests on bits in the FPU status word,
    followed by the call to `sqrt' from the library?

i don't see that on the x87 code here.
anyway, it does not signal the exception.
can someone try to debug this?

also, i compile with -O0.  should that really open-code sqrt?