[vectorIntrinsics] RFR: Merge panama-vector:master [v2]

[Ningsheng Jian]

> Tested with tier1 and jdk/incubator/vector.

Ningsheng Jian has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 688 commits:

 - Merge panama-vector/master into vectorIntrinsics
 - 8259536: Add cast nodes between interger types implementation for Arm SVE
   
   Reviewed-by: njian, xgong
 - 8260668: vectorIntrinsics windows build problem
   
   Reviewed-by: ihse, psandoz
 - Merge panama-vector:master
 - 8259604: Change the implementation of loadV_partial and storeV_partial in Aarch64-SVE backend
   
   Co-authored-by: He Xuejin <hexuejin2 at huawei.com>
   Reviewed-by: njian
 - 8258072: Add Reinterpret nodes implementation for Arm SVE
   
   Co-authored-by: He Xuejin <hexuejin2 at huawei.com>
   Reviewed-by: njian, xgong
 - Merge panama-vector:master
   
   Reviewed-by: sviswanathan
 - Add utf8 decoding benchmarks
   
   Reviewed-by: sviswanathan
 - Merge panama-vector:master
   
   Reviewed-by: sviswanathan
 - Load/store short vectors from/to char[]
   
   Reviewed-by: sviswanathan
 - ... and 678 more: https://git.openjdk.java.net/panama-vector/compare/9d59dec2...f37f6a16

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Changes: https://git.openjdk.java.net/panama-vector/pull/36/files
 Webrev: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=36&range=01
  Stats: 486207 lines in 312 files changed: 485771 ins; 177 del; 259 mod
  Patch: https://git.openjdk.java.net/panama-vector/pull/36.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-vector pull/36/head:pull/36

PR: https://git.openjdk.java.net/panama-vector/pull/36