On Sun, 9 Aug 2026 01:34:27 GMT, Shawn Emery <[email protected]> wrote:

>> This fix allows for more accurate comparisons between intrinsics and Java 
>> performance for P256 conditional set operations by emulating production 
>> lookup EC operations.  Before this fix, benchmarks showed a 53% regression 
>> for intrinsics vs. Java due to constant propagation and dead-code removal by 
>> C2.  After this fix, a 52% performance increase is observed with intrinsics 
>> vs. Java.
>> 
>> ---------
>> - [X] I confirm that I make this contribution in accordance with the 
>> [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai).
>
> Shawn Emery has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   Emulate production operations via EC lookups

@adinn, @mrserb, and @theRealAph, this PR is the follow up fix for:
[8355216: Accelerate P-256 arithmetic on 
aarch64](https://github.com/openjdk/jdk/pull/30941#top)
which saw conditional set regression for intrinsics when compared to Java.

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

PR Comment: https://git.openjdk.org/jdk/pull/32047#issuecomment-5229884980

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