[jdk25u] Integrated: 8367333: C2: Vector math operation intrinsification failure

[Aleksey Shipilev]

On Thu, 25 Sep 2025 11:42:20 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Avoids the `fatal` VM crash when using Vector code. Fixes recent regression in JDK 25.
> 
> Additional testing:
>  - [x] New test fails (crashes VM) without the fix in both release and fastdebug modes, works with the fix
>  - [x] Linux x86_64 server fastdebug, `all`

This pull request has now been integrated.

Changeset: 6c751f29
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk25u/commit/6c751f29e4319dd6b25ff92368a7b8bca22ddeec
Stats:     169 lines in 3 files changed: 169 ins; 0 del; 0 mod

8367333: C2: Vector math operation intrinsification failure
8367969: C2: compiler/vectorapi/TestVectorMathLib.java fails without UnlockDiagnosticVMOptions

Reviewed-by: eastigeevich, phh
Backport-of: aa36799acb5834d730400fb073a9a3a8ee3c28ef

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PR: https://git.openjdk.org/jdk25u/pull/243