RFR: 8376794: Enable copy and mismatch Partial Inlining for AMD AVX512 targets

[Jatin Bhateja]

On Tue, 10 Feb 2026 09:57:48 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

>> Partial in-lining handles copy and mismatch for small array sizes less than -XX:ArrayOperationPartialInlineSize bytes through JIT code rather than calling optimized stubs thereby saving costly call overhead.
>> 
>> Enabling partial in-lining optimization for AMD EPYC servers supporting AVX-512 feature.
>> 
>> Following are the performance numbers on Turin at fixed frequency of 2.1GHz
>> 
>> <img width="440" height="440" alt="image" src="https://github.com/user-attachments/assets/14b55ee3-b65c-4247-8739-67f1b94dceb4" />
>> <img width="440" height="300" alt="image" src="https://github.com/user-attachments/assets/c00d6443-45a2-4277-961d-580ceea5da88" />
>> 
>> Kindly review and share your feedback.
>> 
>> Best Regards,
>> Jatin
>
> Sure, I'll report back once it passed.

Hi @TobiHartmann , Please let me know if the results of your test run are clean.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/29519#issuecomment-3888712425