[v3] Add math-inline benchmark

[Siddhesh Poyarekar]

On Wed, 2015-09-16 at 16:26 +0100, Wilco Dijkstra wrote:
> I previously posted a patch to enable inlines in math.h which replace
> the
> GLIBC internal inlines. I also posted a patch to rename all uses of
> __isinf_ns to isinf so they also use the new inline. I am going to
> post a 
> patch remove all the math_private inlines as they are never used
> after
> these changes.
> 
> So these functions are not duplicated, and it is necessary to add a
> copy
> to benchmark the old implementation. Ie. the only duplication is 
> EXTRACT_WORDS64, which seems fairly minor.
> 
> I've updated my patch with your other comments, see attached.

Looks good to me.

Thanks,
Siddhesh