RFR: 8320697: RISC-V: Small refactoring for runtime calls [v2]

[Feilong Jiang]

On Thu, 30 Nov 2023 13:59:21 GMT, Robbin Ehn <rehn at openjdk.org> wrote:

> You have some unrelated changes in g1BarrierSet, I don't mind, but pointing that out for the record.

Thanks for the reminder, I've updated the description.

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PR Comment: https://git.openjdk.org/jdk/pull/16816#issuecomment-1833881070