RFR: 8287794: Reverse*VNode::Identity problem [v2]

[Xiaohong Gong]

On Mon, 25 Jul 2022 07:48:37 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

>> Oh, right! What I mean is the case like:
>> 
>> VectorBlend (ReverseBytesV X) (ReverseBytesV (ReverseBytesV X)) MASK   ==> VectorBlend (ReverseBytesV X) X MASK 
>> 
>> which is the same case with `test_reversebytes_long_transform2` for non-predicated systems.
>
> As already [discussed](https://github.com/openjdk/panama-vector/pull/182#discussion_r927419799),  we can handle this as a separate PR along with other complimentary operations. This bug fix patch is fixing a specific issue.

Agree, thanks!

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PR: https://git.openjdk.org/jdk/pull/9623