RFR: 8287794: Reverse*VNode::Identity problem [v5]

Xiaohong Gong xgong at openjdk.org
Thu Jul 28 09:44:55 UTC 2022


On Thu, 28 Jul 2022 09:04:02 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

>> Hi All,
>> 
>> - This bug fix patch fixes a missing case during reverse[bits|bytes] identity transformation.
>> - Unlike AARCH64(SVE), X86(AVX512) ISA has no direct instruction to reverse[bits|bytes] of a vector lane hence a predicated operation is supported through blend instruction.
>> - New IR framework based tests has been added to test transforms relevant to AVX2, AVX512 and SVE.
>> 
>> Kindly review and share your feedback.
>> 
>> Best Regards,
>> Jatin
>
> Jatin Bhateja has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8287794: Separating out SVE related test point since currently VM sve feature is enabled based on CPU feature check even if UseSVE=0.

Marked as reviewed by xgong (Committer).

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


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