RFR: 8357626: RISC-V: Tighten up template interpreter method entry code [v5]

[duke]

On Thu, 29 May 2025 03:10:47 GMT, Anjian Wen <wenanjian at openjdk.org> wrote:

>> do the same thing as x86/AArch64 but for RISCV
>> [JDK-8352415](https://bugs.openjdk.org/browse/JDK-8352415) 
>> [JDK-8356949](https://bugs.openjdk.org/browse/JDK-8356949)
>
> Anjian Wen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   delete the confusing noreg

@Anjian-Wen 
Your change (at version 81a5e970b958ee07cd555e601c4491818c3c6e35) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk/pull/25412#issuecomment-2922017818