[jdk26] RFR: 8374043: C2: assert(_base >= VectorMask && _base <= VectorZ) failed: Not a Vector

[Tobias Hartmann]

On Mon, 26 Jan 2026 03:04:31 GMT, Xiaohong Gong <xgong at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit [38b66b12](https://github.com/openjdk/jdk/commit/38b66b12581a3745a37589e32aa0fc880d27b4d4) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Xiaohong Gong on 26 Jan 2026 and was reviewed by Quan Anh Mai and Vladimir Ivanov.
> 
> Thanks!

This is a P3 bug and since we are already at RDP 2 for JDK 26 only P1-P2 bugs (with approval) are allowed at this point: https://openjdk.org/jeps/3

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PR Comment: https://git.openjdk.org/jdk/pull/29404#issuecomment-3798149572