RFR: 8376164: Optimize AES/ECB/PKCS5Padding implementation using full-message intrinsic stub and parallel RoundKey addition [v2]

[xinyangwu]

On Thu, 19 Feb 2026 03:00:39 GMT, Shawn Emery <semery at openjdk.org> wrote:

>> xinyangwu has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:
>> 
>>  - Merge branch 'openjdk:master' into aes
>>  - 8376164: Optimize AES/ECB/PKCS5Padding with parallel intrinsic
>
> src/hotspot/cpu/x86/stubGenerator_x86_64_aes.cpp line 1404:
> 
>> 1402: }
>> 1403: 
>> 1404: address StubGenerator::generate_electronicCodeBook_encryptAESCrypt_multiBlock_Parallel() {
> 
> Would be nice to have a method description (input, outputs, which registers are used on which platforms) and the overall algorithm used for multi-block encryption/decryption.

Thank you for your review. I've added input and output descriptions similar to other methods, but I noticed that those methods didn't provide the overall algorithms. I'll add them if you think it's necessary.

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PR Review Comment: https://git.openjdk.org/jdk/pull/29385#discussion_r2844654270