RFR: 8322770: Implement C2 VectorizedHashCode on AArch64

[Mikhail Ablakatov]

On Fri, 14 Jun 2024 16:15:29 GMT, snadampal <duke at openjdk.org> wrote:

>> Hi @theRealAph ! You may find the latest version here: https://github.com/mikabl-arm/jdk/commit/b3db421c795f683db1a001853990026bafc2ed4b . I gave a short explanation in the commit message, feel free to ask for more details if required. 
>> 
>> Unfortunately, it still contains critical bugs and I won't be able to take a look into the issue before the next week at best. Until it's fixed, it's not possible to run the benchmarks. Although I expect it to improve performance on longer integer arrays based on a benchmark I've written in C++ and Assembly. The results aren't comparable to the jmh results, so I won't post them here.
>
> Hi @mikabl-arm , the improvements for larger sizes look impressive, good work! 
> any timeline for getting it merged?

Hi @snadampal ! Glad that you find the change useful 😄

Thanks to @nick-arm I have some progress with fixing existing issues, so I'm looking forward to update the PR before next Tuesday.

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PR Comment: https://git.openjdk.org/jdk/pull/18487#issuecomment-2195181632