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Date: Sun, 24 May 2009 11:46:08 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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Subject: Re: [BUG FIX] Make x86_32 uni-processor Atomic ops, Atomic
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Michael S. Zick wrote:
> 
> Note: I have seem to recall that newer gcc's optimizer presume 
> that the flags register is preserved across asm - 
> It didn't use to do that - but there is now a "cc" to deal with
> that - Have not yet audited for that, but it is high on my list.
> 

I am pretty sure that's false... if it was true we'd have failures all
over the kernel.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.