RFR: 8266054: VectorAPI rotate operation optimization [v3]

[Jatin Bhateja]

On Tue, 27 Apr 2021 18:43:11 GMT, Paul Sandoz <psandoz at openjdk.org> wrote:

>> Jatin Bhateja has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8266054: Review comments resolution.
>
> I noticed the tests are only updated for int and long, is that intentional? The HotSpot changes in some cases seem to imply all integral types are supported via the use of `is_integral_type`, contradicted by the use of `is_subword_type`.
> 
> I would recommend trying to leverage Integer/Long.rotateLeft/Right implementations. They are not available for byte/short, so lets add specific methods in those cases, that should make the Java op implementation clearer.

Hi @PaulSandoz , thanks your comments have been addressed.

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PR: https://git.openjdk.java.net/jdk/pull/3720