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

[Eric Liu]

> Conflicts were resolved in
> 
>         src/hotspot/cpu/aarch64/aarch64_sve.ad
>         src/hotspot/cpu/aarch64/aarch64_sve_ad.m4
>         src/hotspot/cpu/x86/assembler_x86.hpp
>         src/hotspot/cpu/x86/x86.ad
>         test/hotspot/gtest/aarch64/asmtest.out.h
>         test/jdk/jdk/incubator/vector/config.sh

Eric Liu has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 798 commits:

 - Merge panama-vector:master
   
   Conflicts were resolved in
   
           src/hotspot/cpu/aarch64/aarch64_sve.ad
           src/hotspot/cpu/aarch64/aarch64_sve_ad.m4
           src/hotspot/cpu/x86/assembler_x86.hpp
           src/hotspot/cpu/x86/x86.ad
           test/hotspot/gtest/aarch64/asmtest.out.h
           test/jdk/jdk/incubator/vector/config.sh
   
   Change-Id: I7c25771498e4b1cbd70b74b3511fc0ed08418742
 - Merge panama-vector:master
   
   Reviewed-by: njian
 - Update asmtest.out.h due to incorrect merge
   
   Reviewed-by: eliu
 - Merge panama-vector:vectorIntrinsics+compress
   
   Reviewed-by: jbhateja
 - Compress JavaDoc.
   
   Reviewed-by: sviswanathan
 - Merge panama-vector:vectorIntrinsics
   
   Reviewed-by: eliu
 - 8276083: Incremental patch to further optimize new compress/expand APIs over X86
   
   Reviewed-by: psandoz
 - 8275231: Intrinsify VectorMask.compress API for X86 target.
   
   Reviewed-by: sviswanathan
 - Merge panama-vector:vectorIntrinsics
   
   Reviewed-by: sviswanathan
 - 8275255: AArch64: Backend support for compress VectorAPI
   
   Reviewed-by: njian
 - ... and 788 more: https://git.openjdk.java.net/panama-vector/compare/4f607f2a...3635cdc1

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

Changes: https://git.openjdk.java.net/panama-vector/pull/170/files
 Webrev: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=170&range=01
  Stats: 75945 lines in 195 files changed: 75815 ins; 33 del; 97 mod
  Patch: https://git.openjdk.java.net/panama-vector/pull/170.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-vector pull/170/head:pull/170

PR: https://git.openjdk.java.net/panama-vector/pull/170