[vectorIntrinsics+compress] RFR: 8275231: Intrinsify VectorMask.compress API for X86 target.

[Sandhya Viswanathan]

On Thu, 21 Oct 2021 14:38:00 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

> Summary of changes:
> - Inline expansion of VectorMask.compress API.
> - X86 backend support for both AVX-512 and legacy targets.

Marked as reviewed by sviswanathan (Committer).

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PR: https://git.openjdk.java.net/panama-vector/pull/156