RFR: 8254693: Add Panama feature to pass heap segments to native code [v5]

[Jorn Vernee]

On Wed, 18 Oct 2023 14:38:41 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

> I wonder if the native_invoker_size_per_arg thing still works good enough. We may exceed the computed size, now, right?

Good point. I'll have a look at enhancing the test we have for this. 

Intuitively, I think it will be okay. It's true that we generate more code to add the oops and offsets together, but at the same time, we don't have any code to shuffle the offsets.

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PR Comment: https://git.openjdk.org/jdk/pull/16201#issuecomment-1768630249