linux-kernel - Re: [PATCH 2/8] i386: bitops: Rectify bogus "Ir" constraints

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Date:	Mon, 23 Jul 2007 10:57:27 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Satyam Sharma <ssatyam@....iitk.ac.in>
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	David Howells <dhowells@...hat.com>,
	Nick Piggin <nickpiggin@...oo.com.au>, Andi Kleen <ak@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 2/8] i386: bitops: Rectify bogus "Ir" constraints



On Mon, 23 Jul 2007, Satyam Sharma wrote:
>
> * The "I" constraint modifier is applicable only to immediate-value operands,
>   and combining it with "r" is bogus.

This is wrong too.

The whole point of a "Ir" modifier is to say that the instruction takes 
*either* an "I" or an "r".

Andrew - the ones I've looked at were all wrong. Please don't take this 
series.

		Linus
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