From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andreas Schwab <schwab@suse.de>
Date: Mon, 21 Nov 2005 16:48:31 +0000
Subject: Re: Fix asm constraint in put_user
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David Mosberger-Tang <David.Mosberger@acm.org> writes:

> If memory services, you should use the "o" constraint instead.=20

That doesn't work.

> Note that there is no "memory" clobber, so if you change from "m" to "r"
> constraint, GCC won't know that the location at "addr" is being stored
> to.

There is nothing worth clobbering here.  The memory written to is
completely separate to anything GCC knows about.  The old version didn't
clobber either.

Andreas.

--=20
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstra=DFe 5, 90409 N=FCrnberg, Germany
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