[jdk21u-dev] RFR: 8321599: Data loss in AVX3 Base64 decoding

[Oli Gillespie]

On Thu, 4 Jan 2024 09:48:48 GMT, Oli Gillespie <ogillespie at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit [13c11487](https://github.com/openjdk/jdk/commit/13c11487f7126a370d9ce8e62f661ea83eedefe6) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Scott Gibbons on 4 Jan 2024 and was reviewed by Sandhya Viswanathan and Vladimir Kozlov.
> 
> Thanks!

Confirmed that `make test TEST="compiler/intrinsics/base64/TestBase64.java"` fails with the new test but without the fix, and passes with the fix (on an AWS c6i instance type to trigger the problematic path).

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/122#issuecomment-1876957108