[vectorIntrinsics] RFR: 8283413: Add C2 mid-end and x86 back-end implementation for bit REVERSE and REVERSE_BYTES operation [v6]

[Jatin Bhateja]

On Thu, 7 Apr 2022 04:17:28 GMT, Eric Liu <eliu at openjdk.org> wrote:

>> Jatin Bhateja has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8283413: Review comments resolution.
>
> src/hotspot/share/opto/vectornode.hpp line 1703:
> 
>> 1701: 
>> 1702:   virtual int Opcode() const;
>> 1703: };
> 
> Just a little tip: Can we add Identify for BYTE type, that is ReverseBytesV(x) ->x.

Thanks @theRealELiu ,  its handled on the lines of Revers transformation during final graph reshaping.

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PR: https://git.openjdk.java.net/panama-vector/pull/182