From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeffrey A Law <law@cygnus.com>
To: Richard Henderson <rth@cygnus.com>
Cc: Hasdi R Hashim <hasdi@umich.edu>, egcs@cygnus.com
Subject: Re: Adding New Registers 
Date: Fri, 13 Feb 1998 23:13:00 -0000
Message-id: <28222.887440522@hurl.cygnus.com>
References: <19980213152758.41081@dot.cygnus.com>
X-SW-Source: 1998-02/msg00648.html

  In message < 19980213152758.41081@dot.cygnus.com >you write:
  > On Fri, Feb 13, 1998 at 11:54:26AM +0000, Hasdi R Hashim wrote:
  > > 	I am in the middle of adding new special purpose registers to an
  > > existing target architecture. It should be able to accept 8-byte
  > > structure. I added a new register class and a new constraint characters,
  > > 'x'. I only accepts BLKmode but at this point it can accept any mode
  > [...]
  > > 	../x.c: In function `xmain':
  > > 	../x.c:7: `asm' operand requires impossible reload
  > 
  > I didn't think that BLKmode was a reasonable thing to put on a 
  > register...  You might try accepting DImode or CSImode or whatnot
  > instead.
Correct.  BLKmode registers are a no-no.

jeff