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Date: Sat, 10 Nov 2001 20:01:13 -0500
From: Benjamin LaHaise <bcrl@redhat.com>
To: Anton Blanchard <anton@samba.org>
Cc: Manfred Spraul <manfred@colorfullife.com>,
        "David S. Miller" <davem@redhat.com>, jakub@redhat.com,
        torvalds@transmeta.com, alan@lxorguk.ukuu.org.uk, arjanv@redhat.com,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH] take 2 of the tr-based current
Message-ID: <20011110200113.I17437@redhat.com>
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In-Reply-To: <20011111110107.A4064@krispykreme>; from anton@samba.org on Sun, Nov 11, 2001 at 11:01:08AM +1100
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On Sun, Nov 11, 2001 at 11:01:08AM +1100, Anton Blanchard wrote:
> static inline struct Paca *get_paca(void) __attribute__ ((pure));
> static inline struct Paca *get_paca(void)
> {
> 	struct Paca *rval;
> 	__asm__ ("mfspr %0,0x113" : "=r" (rval));
> 	return rval;
> }
> 
> Alan Modra came to the rescue and found that gcc was optimising too much
> and since the function did not touch any global variables, it would
> upgrade the pure to const. This was on gcc 3.0.X.

Hmmm.  Would adding a fake global input help with that?  Something like a 
"g" (aligned_data) input.

		-ben
-- 
Fish.
-
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