[vsipl++] [patch] enable use of refcount policy for ext_data

[Mark Mitchell]

Jules Bergmann wrote:

> With this patch, our performance (blue line) is closer to IPP for small
> vector sizes.

Great!

For very small vectors (16 elements), I bet we can eventually beat IPP
by (when we're compiling with GCC) using GCC's vector extensions, and
thereby avoiding the function-call overhead.

-- 
Mark Mitchell
CodeSourcery, LLC
mark at codesourcery.com
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