On Thu, 10 Nov 2022 20:11:46 GMT, Jamil Nimeh <jni...@openjdk.org> wrote:

>> This PR delivers ChaCha20 intrinsics that accelerate the core block function 
>> that generates key stream from the key, counter and nonce.  Intrinsics have 
>> been written for the following platforms and instruction sets:
>> 
>> - x86_64: AVX, AVX2 and AVX512
>> - aarch64: platforms that support the advanced SIMD instructions
>> 
>> Note: Microbenchmark results moved to a comment in the PR so we don't have 
>> to see it in every email.
>> 
>> Special thanks to the folks who have made many helpful comments while this 
>> PR was in draft form.
>
> Jamil Nimeh has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   replace hi/lo word shuffles and left-right shift/or operations for vpshufd 
> on byte-aligned rotations

Marked as reviewed by sviswanathan (Reviewer).

The x86_64 code looks good to me.

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PR: https://git.openjdk.org/jdk/pull/7702

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