[aarch64-port-dev ] RFR: 8189107 - AARCH64: create intrinsic for pow

[Andrew Haley]

On 09/21/2018 09:55 AM, Andrew Dinn wrote:

> Ok, use of Horner form was one of the things I was going to ask you to
> restore. I did actually ask Joe Darcy about the use of Estrin form. If
> he can provide an argument that it is ok to employ it then we can think
> about reinstating the vector computation as an upgrade at a later date.
> I am not surprised its removal makes only a small difference, given how
> little of the computation it represents.

I've run the crlibm difficult rounding tests on the patch, with no
regressions, so I'm pretty happy about using the Estrin form. Of
course it's possible that there will be problems elsewhere, but it's
not likely IMO.

-- 
Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
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