RFR: 8351412: Add AVX-512 intrinsics for ML-KEM [v2]

[Leonid Mesnik]

On Wed, 30 Apr 2025 07:48:32 GMT, Ferenc Rakoczi <duke at openjdk.org> wrote:

>> By using the AVX-512 vector registers the speed of the computation of the ML-KEM algorithms (key generation, encapsulation, decapsulation) can be approximately doubled.
>
> Ferenc Rakoczi has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Removed debugging changes.

Can you please explain in comments how this fix has been tested? I would like to understand which tests are relevant and which flags needs to be set to test this functionality.

src/java.base/share/classes/com/sun/crypto/provider/ML_KEM.java line 2:

> 1: /*
> 2:  * Copyright (c) 2024, 2025, Oracle and/or its affiliates. All rights reserved.

Seems the file contains only copyright changes.

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PR Review: https://git.openjdk.org/jdk/pull/24953#pullrequestreview-2808697913
PR Review Comment: https://git.openjdk.org/jdk/pull/24953#discussion_r2069581842