Re: [PATCH 2/5] bitops: compile time optimization for hweight_long(CONSTANT)

[H. Peter Anvin]

On 02/03/2010 07:47 AM, Peter Zijlstra wrote:
> 
> From what I know the popcnt ins on x86 is relatively new, hpa was going
> to look at supporting it using alternatives.
> 

And kernel-specific stuff like alternatives is pretty much the one thing
that gcc *can't* do for us.

	-hpa

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

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