RFR: 8351034: Add AVX-512 intrinsics for ML-DSA [v4]

[Jatin Bhateja]

On Wed, 5 Mar 2025 13:10:34 GMT, Ferenc Rakoczi <duke at openjdk.org> wrote:

>> By using the AVX-512 vector registers the speed of the computation of the ML-DSA algorithms (key generation, document signing, signature verification) can be approximately doubled.
>
> Ferenc Rakoczi has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Added alignment to loop entries.

src/hotspot/cpu/x86/stubGenerator_x86_64_dilithium.cpp line 2:

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

Please update copyright year

src/hotspot/cpu/x86/stubGenerator_x86_64_dilithium.cpp line 96:

> 94:       StubRoutines::_dilithiumMontMulByConstant = generate_dilithiumMontMulByConstant_avx512();
> 95:       StubRoutines::_dilithiumDecomposePoly = generate_dilithiumDecomposePoly_avx512();
> 96:     }

Indentation fix needed

src/hotspot/cpu/x86/stubGenerator_x86_64_sha3.cpp line 362:

> 360:   const Register roundsLeft = r11;
> 361: 
> 362:   __ align(OptoLoopAlignment);

Redundant alignment before label should be before it's bind

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PR Review Comment: https://git.openjdk.org/jdk/pull/23860#discussion_r1983463096
PR Review Comment: https://git.openjdk.org/jdk/pull/23860#discussion_r1983464620
PR Review Comment: https://git.openjdk.org/jdk/pull/23860#discussion_r1983477681