RFR: 8342393: Promote commutative vector IR node sharing [v10]

[Jatin Bhateja]

On Thu, 16 Jan 2025 23:40:09 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> Jatin Bhateja has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Review suggestions incorporated
>
> I suggest to go first with changes as they are - vector specific.  (We have to submit our testing to make sure they are safe first).
> Scalar implementation will have to be investigated more carefully to make sure we will not get performance regression.
> We can rename the flag and its accessors to general name, refactor some code as @eme64 suggested later when we do scalar work.

Hi @vnkozlov , @iwanowww , @eme64 , Please let me know if this looks good.

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PR Comment: https://git.openjdk.org/jdk/pull/22863#issuecomment-2610673173