RFR: 8343068: C2: CastX2P Ideal transformation not always applied [v2]

[Roland Westrelin]

On Mon, 28 Oct 2024 06:20:59 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

> Shouldn't this be caught by `VerifyIterativeGVN` after [JDK-8298952 ](https://bugs.openjdk.org/browse/JDK-8298952)?

That one only checks `Value`. In this case, the transformation that's not applied is performed by `Ideal`.

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PR Comment: https://git.openjdk.org/jdk/pull/21714#issuecomment-2454582028