On Fri, Dec 21, 2007 at 01:27:20AM -0800, David Miller wrote:
>
> It's two shifts, and this gets scheduled along with the other
> instructions on many cpus so it's effectively free.
> 
> I don't see why this is even worth mentioning and discussing.

I totally agree.  Two shifts are way better than a branch.

Cheers,
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