From mboxrd@z Thu Jan  1 00:00:00 1970
From: Guy Martin <gmsoft@tuxicoman.be>
Subject: Re: can't find a register in class 'R1_REGS' while reloading 'asm'
Date: Sun, 7 Nov 2010 17:50:42 +0100
Message-ID: <20101107175042.627060c2@zombie>
References: <20100207002335.GP24051@bombadil.infradead.org>
 <20100208032035.645A14EF1@hiauly1.hia.nrc.ca>
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Cc: kyle@mcmartin.ca (Kyle McMartin), dave.anglin@nrc-cnrc.gc.ca,
	cavokz@gmail.com, linux-parisc@vger.kernel.org
To: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Any update on this ?

I'm still running into the issue with gcc 4.4.4 and linux 2.6.37-rc1.

Regards,
  Guy

On Sun, 7 Feb 2010 22:20:34 -0500 (EST)
"John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:

> > On Mon, Dec 07, 2009 at 10:01:14PM -0500, John David Anglin wrote:
> > > -	volatile unsigned int *a;
> > > +	volatile register unsigned int *a asm ("r20") =
> > > __ldcw_align(x); 
> > 
> > I'm reticent about moving the assignment around the mb(), should I
> > edit this to return the assignment and apply, or apply as is?
> 
> I don't believe the __ldcw_align operation involves a memory read or
> write.  It's just adjusting a pointer.  Thus moving it past the mb()
> shouldn't matter.  That said, I been wrong before...
> 
> Dave