RFR: 8264973: AArch64: Optimize vector max/min/add reduction of two integers with NEON pairwise instructions [v2]

[Paul Sandoz]

On Mon, 10 May 2021 14:29:47 GMT, Andrew Haley <aph at openjdk.org> wrote:

>> Dong Bo has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   add assembler tests for smaxp/sminp
>
> Looking now. I can't quite understand how to run tests from panama-vector on JDK head. If the JMH test is relevant to JDK, not just panama-vector, why not add it to JDK?

@theRealAph we are still working out how best to bring the vector performance tests over to the `test/micro` area of mainline. (Some preliminary work is [here](https://github.com/openjdk/panama-vector/pull/77)). The perf tests in the `panama-vector` are under a maven project and it should be possible to build/run that project with a mainline build of the JDK (the tests should be compatible).

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PR: https://git.openjdk.java.net/jdk/pull/3683