From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6965 invoked by alias); 31 Oct 2002 05:14:29 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 6783 invoked from network); 31 Oct 2002 05:14:27 -0000 Received: from unknown (HELO mailout5-0.nyroc.rr.com) (24.92.226.169) by sources.redhat.com with SMTP; 31 Oct 2002 05:14:27 -0000 Received: from twcny.rr.com (syr-66-66-30-119.twcny.rr.com [66.66.30.119]) by mailout5-0.nyroc.rr.com (8.11.6/RoadRunner 1.20) with ESMTP id g9V5ELc23208; Thu, 31 Oct 2002 00:14:21 -0500 (EST) Message-ID: <3DC0BC2C.2070007@twcny.rr.com> Date: Wed, 30 Oct 2002 21:14:00 -0000 From: Nathanael Nerode User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.2a) Gecko/20020910 X-Accept-Language: en-us, en MIME-Version: 1.0 To: user42@zip.com.au, gcc-gnats@gcc.gnu.org, gcc-patches@gcc.gnu.org, gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org Subject: PATCH: Re: optimization/6162: gcc 3.0.4: certain i386 asm reloader ice Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-SW-Source: 2002-10/txt/msg01881.txt.bz2 Here's a documentation fix. I suspect this is enough to allow the PR to be closed, given that * this asm syntax is a gcc extension, I believe, and as such we can specify it to behave however we like. * the behavior isn't going to change any time in the near future. * in general the problem can be worked around if people are aware of it. http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6162 PR optimization/6162 * md.texi: Document restriction on commutative operand specification. Index: md.texi =================================================================== RCS file: /cvs/gcc/gcc/gcc/doc/md.texi,v retrieving revision 1.51 diff -u -r1.51 md.texi --- md.texi 15 Sep 2002 22:48:05 -0000 1.51 +++ md.texi 31 Oct 2002 05:09:57 -0000 @@ -1256,6 +1256,8 @@ @dots{}) @end smallexample @end ifset +GCC can only handle one commutative pair in an asm; if you use more, +the compiler may fail. @cindex @samp{#} in constraint @item #