RFR: 8281375: Accelerate bitCount operation for AVX2 and AVX512 target. [v8]

[Sandhya Viswanathan]

On Sat, 5 Mar 2022 01:36:09 GMT, Paul Sandoz <psandoz at openjdk.org> wrote:

>> Jatin Bhateja has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8281375: Review comments resolved.
>
> Running some tests.

Thanks a lot @PaulSandoz.

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PR: https://git.openjdk.java.net/jdk/pull/7373