RFR: 8322694: C1: Handle Constant and IfOp in NullCheckEliminator [v2]

[Tobias Hartmann]

On Tue, 16 Jan 2024 17:58:45 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

> Could there be a regression test for this enhancement?

The IR framework only supports C2, so a regression test would need to manually check the `-XX:+PrintIR` output here. I don't think that's worth it for C1.

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PR Comment: https://git.openjdk.org/jdk/pull/17191#issuecomment-1895225821