On Mon, 17 Jun 2024 18:12:16 GMT, Vladimir Kozlov <k...@openjdk.org> wrote:
> What causes regression in P256 "(~-8-14%)"? From what I see, you re-arranged
> code to not execute some code ("reducePositive()") when it is not needed. How
> this affects P256?
Actually, the other way around; reducePositive is now an unconditionally
executed for both pure java and the intrinsic paths. Perhaps that's what is
misleading, it was only the mult() intrinsic that was taking advantage of this
'skip reduction' before. (pure java did not benefit from removing reduction, so
I kept it. Now 'keeping it' for both paths)
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PR Comment: https://git.openjdk.org/jdk/pull/19728#issuecomment-2174201539
