RFR: 8282874: Bad performance on gather/scatter API caused by different IntSpecies of indexMap

[Joshua Zhu]

On Fri, 11 Mar 2022 09:02:18 GMT, Jie Fu <jiefu at openjdk.org> wrote:

> > Check a simple reproducer at http://cr.openjdk.java.net/~jzhu/8282874/CheckAssembly.java. We can verify its performance via execution time.
> 
> Thanks @JoshuaZhuwj for your clarification. So we can create a jtreg test based on CheckAssembly.java, right?
> 
> If you are busy to do so, we'd like to have a try. What do you think?

Of course. Thanks @DamonFool 
I think it would be better to sync with Paul on how to design tests for "polluted" profiles of vectors mentioned before instead of a single jtreg test for this case.

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PR: https://git.openjdk.java.net/jdk/pull/7757