RFR: 8309531: Incorrect result with unwrapped iotaShuffle. [v6]

[Xiaohong Gong]

On Mon, 3 Jul 2023 07:51:20 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

>> Patch fixes following two issues in iotaShuffle inline expander with unwrapped indices.
>>  1) Disable intrinsification if effective index do not lie within byte value range.
>>  2) Use GT predicate while computing comparison mask for all the indices above vector length.
>> 
>> No performance degradation seen with existing slice/unslice operations which internally calls wrapped iotaShuffle.
>> 
>> This interim patch addresses incorrectness around iotaShuffle till we introduce modified shuffle implementations
>> with JDK-8310691.
>> 
>> Kindly review and share feedback.
>> 
>> Best Regards,
>> Jatin
>
> Jatin Bhateja has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Review comments resolution.

AArch64 tests pass on linux. So LGTM!

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Marked as reviewed by xgong (Committer).

PR Review: https://git.openjdk.org/jdk/pull/14700#pullrequestreview-1510696799