RFR: 8265816: Handle new VectorMaskCast node for x86

Fri Apr 23 20:53:25 UTC 2021

On Fri, 23 Apr 2021 20:41:10 GMT, Nils Eliasson <neliasso at openjdk.org> wrote:

>> To eliminate unnecessary vector mask conversion during unboxing a
>> VectorMaskCast node was added as part of JDK-8264104 for aarch64. This patch handles the x86 side of it.
>> 
>> Please review.
>> 
>> Best Regards,
>> Sandhya
>
> Looks good!

@neliasso Thanks a lot for the review.

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PR: https://git.openjdk.java.net/jdk/pull/3645