[jdk17u] RFR: 8271567: AArch64: AES Galois CounterMode (GCM) interleaved implementation using vector instructions [v2]

[Andrew Haley]

> [New PR because of the 17u updates SNAFU.]
> 
> This is a backport of the big AES/GCM patch from JDK head. It's a
> major change and it's had very little time (almost a day) to mature in
> head, so I've set things up so that there is no change at all unless
> you explicitly enable `-XX:+UseAESGCMIntrinsics`, which defaults
> to false. When we've had more time we can perhaps turn it on by default.

Andrew Haley has updated the pull request incrementally with one additional commit since the last revision:

  Use existing UseAESCTRIntrinsics flag

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

Changes:
  - all: https://git.openjdk.java.net/jdk17u/pull/216/files
  - new: https://git.openjdk.java.net/jdk17u/pull/216/files/20eb98fe..4adf21b3

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk17u&pr=216&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk17u&pr=216&range=00-01

  Stats: 7 lines in 3 files changed: 0 ins; 2 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk17u/pull/216.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u pull/216/head:pull/216

PR: https://git.openjdk.java.net/jdk17u/pull/216