[vectorIntrinsics+compress] RFR: Merge panama-vector:vectorIntrinsics [v2]

[Jatin Bhateja]

> Merge from vectorIntrinsics to vectorIntrinsics+compress branch.
> 
> This will bring in some bug-fixes needed for clean regressions in X86.
> 
> Best Regards,
> Jatin

Jatin Bhateja has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains eight additional commits since the last revision:

 - Merge branch 'vectorIntrinsics' of http://github.com/jatin-bhateja/panama-vector into vectorIntrinsics+compress_merge
 - 8274975: Add micro benchmark: ALIBABA selective store use case
   
   Reviewed-by: psandoz
 - 8274971: Add VectorMask.compress API
   
   Reviewed-by: psandoz, jbhateja
 - 8274889: Intrinsify Vector.expand/compress APIs for X86
   
   Co-authored-by: Jatin Bhateja <jbhateja at openjdk.org>
   Reviewed-by: eliu
 - 8274837: Intel backend support for compress VectorAPI
   
   Reviewed-by: sviswanathan
 - 8274839: Intrinsic support for compress & expand VectorAPI
   
   Reviewed-by: sviswanathan
 - 8274936: Remove compress(m, v) and expand(m, v) flavor from Vector API
   
   Reviewed-by: psandoz
 - 8274664: Add support for compress/expand api methods
   
   Reviewed-by: psandoz

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

Changes:
  - all: https://git.openjdk.java.net/panama-vector/pull/154/files
  - new: https://git.openjdk.java.net/panama-vector/pull/154/files/3caee019..3caee019

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=154&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=154&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/panama-vector/pull/154.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-vector pull/154/head:pull/154

PR: https://git.openjdk.java.net/panama-vector/pull/154