RFR: 8267125: AES Galois CounterMode (GCM) interleaved implementation using AVX512 + VAES instructions [v3]

[Smita Kamath]

> I would like to submit AES-GCM optimization for x86_64 architectures supporting AVX3+VAES (Evex encoded AES). This optimization interleaves AES and GHASH operations.
> Performance gain of ~1.5x - 2x for message sizes 8k and above.

Smita Kamath has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains four commits:

 - merge master
 - 8267125:Updated intrinsic signature to remove copies of counter, state and subkeyHtbl
 - Merge master
 - JDK-8267125: AES Galois CounterMode (GCM) interleaved implementation using AVX512 + VAES instructions

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Changes: https://git.openjdk.java.net/jdk/pull/4019/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4019&range=02
  Stats: 935 lines in 21 files changed: 926 ins; 0 del; 9 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4019.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4019/head:pull/4019

PR: https://git.openjdk.java.net/jdk/pull/4019