[riscv-port-jdk11u:riscv-port] Integrated: 8293566: RISC-V: Clean up push and pop registers

[Gui Cao]

On Tue, 8 Oct 2024 08:28:21 GMT, Gui Cao <gcao at openjdk.org> wrote:

> Hi, I would like to backport [JDK-8293566](https://bugs.openjdk.org/browse/JDK-8293566) to riscv-port-jdk11u. with this patch ,it will have better readability. jdk11u not have z gc, so this backport is not clean.
> 
> ### Testing
> - [x] Run tier1 tests on SOPHON SG2042 (release)

This pull request has now been integrated.

Changeset: ef970d4c
Author:    Gui Cao <gcao at openjdk.org>
URL:       https://git.openjdk.org/riscv-port-jdk11u/commit/ef970d4c7267af52f8e667acb301826f228a6272
Stats:     35 lines in 4 files changed: 7 ins; 3 del; 25 mod

8293566: RISC-V: Clean up push and pop registers

Reviewed-by: dzhang, fyang
Backport-of: 68645ebffb28605fa2c6afef11f8265fd350b5cb

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PR: https://git.openjdk.org/riscv-port-jdk11u/pull/36