PATCH: Re: optimization/6162: gcc 3.0.4: certain i386 asm reloader ice

[Nathanael Nerode <neroden@twcny.rr.com>]

The following reply was made to PR optimization/6162; it has been noted by GNATS.

From: Nathanael Nerode <neroden@twcny.rr.com>
To: user42@zip.com.au, gcc-gnats@gcc.gnu.org, gcc-patches@gcc.gnu.org,
   gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org
Cc:  
Subject: PATCH: Re: optimization/6162: gcc 3.0.4: certain i386 asm reloader
 ice
Date: Thu, 31 Oct 2002 00:14:20 -0500

 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 #