RFR: 8278757: [s390] Implement AES Counter Mode Intrinsic

[Lutz Schmidt]

On Thu, 7 Apr 2022 21:24:45 GMT, Tyler Steele <duke at openjdk.java.net> wrote:

>> Once again:
>> With only s390 files in the changeset, there is no way for this PR to fail linux x86 tests.
>
> @RealLucy Tier1 tests in progress :slightly_smiling_face:. I will update this comment when they complete
> 
> ---
> 
> I see only one failure, but I don't believe it's a new one. [We saw it [last time](https://github.com/openjdk/jdk/pull/7324#issuecomment-1063214518) as well]
> - compiler/c2/irTests/TestAutoVectorization2DArray.java

@backwaterred Sorry for replying late. Your test result edit slipped my attention. I'm sure you are right. We say this error before. 

With testing ok, it's _only_ about reviews now. Might prove difficult. 

Btw: did you have a look at the performance test results? They are multi-platform. And s390 doesn't look too bad. :-)

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PR: https://git.openjdk.java.net/jdk/pull/8142