RFR: 8330735: RISC-V: No need to move sp to tmp register in set_last_Java_frame

[Fei Yang]

On Sat, 20 Apr 2024 12:42:20 GMT, Feilong Jiang <fjiang at openjdk.org> wrote:

> Hi, please review this refactoring to remove the unnecessary move from sp to temp register.
> 
> There is no restriction for riscv when using `sp` as an operand in instructions. So we do not have to move the sp register to a temp register before we store `last_java_sp`.
> 
> Testing:
> 
> - [x] Tier1-3 (linux-riscv64, release)

Looks fine. Thanks for the cleanup!

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Marked as reviewed by fyang (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/18875#pullrequestreview-2013678102