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 [thread overview]
Message-ID: <28222.887440522@hurl.cygnus.com> (raw)
In-Reply-To: <19980213152758.41081@dot.cygnus.com>
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
prev parent reply other threads:[~1998-02-13 23:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-02-12 20:07 cross compiler Tudor Hulubei
1998-02-13 2:04 ` Jeffrey A Law
1998-02-13 10:31 ` H.J. Lu
1998-02-13 10:31 ` Jeffrey A Law
1998-02-13 17:41 ` Richard Henderson
1998-02-13 10:31 ` Adding New Registers Hasdi R Hashim
1998-02-13 17:41 ` Richard Henderson
1998-02-13 23:13 ` Jeffrey A Law [this message]
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