RFR: 8346106: Verify.checkEQ: testing utility for recursive value verification

[Vladimir Kozlov]

On Thu, 12 Dec 2024 15:42:29 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

> In testing, we often generate "golden" values, and then compare the results with it. This requires comparison loops etc in every test. I would like to create a dedicated facility for this, to simplify testing in the future. This is also preparation for [JDK-8344942](https://bugs.openjdk.org/browse/JDK-8344942), the Template framework.
> 
> I have written code like this in various tests before, see:
> `test/hotspot/jtreg/compiler/loopopts/superword/TestAlignVectorFuzzer.java`
> `./test/hotspot/jtreg/compiler/loopopts/superword/TestMemorySegment.java`
> `test/hotspot/jtreg/compiler/loopopts/superword/TestIndependentPacksWithCyclicDependency.java`.
> 
> It is now time to make a proper facility, so I can save time when writing tests in the future.
> 
> A related PR, for value generation: https://github.com/openjdk/jdk/pull/22716

Okay.

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Marked as reviewed by kvn (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/22715#pullrequestreview-2500425730