[vectorIntrinsics+compress] RFR: 8274889: Intrinsify Vector.expand/compress APIs for X86

[Sandhya Viswanathan]

On Thu, 7 Oct 2021 09:18:07 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

> - Common C2 compiler entry point for compress/expand APIs.
> - Inline expansion handling and C2 graph creation.
> - For X86 current backed support is added for AVX512 which offers direct compress/expand instructions.
> 
> Patch has been co-contributed by  Joshua Zhu  (@Alibaba)

@jatin-bhateja Thanks for looking into this. Unfortunately some of this overlaps with Joshua's submission. Please co-ordinate with Joshua.

-------------

PR: https://git.openjdk.java.net/panama-vector/pull/146