RFR: 8359270: C2: alignment check should consider base offset when emitting arraycopy runtime call [v2]

[Fei Yang]

On Wed, 18 Jun 2025 11:04:41 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

> `compiler/c2/irTests/stringopts/TestArrayCopySelect.java` fails on various platforms with `-ea -esa -XX:CompileThreshold=100 -XX:+UnlockExperimentalVMOptions -server -XX:-TieredCompilation`:

Hi Tobias, I improved the test a bit and added some warmup to it. Now I see it is passing on three different platforms with these extra VM options. Could you please give it another try? Thanks.

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PR Comment: https://git.openjdk.org/jdk/pull/25765#issuecomment-2986975409