[jdk17u-dev] RFR: 8339741: RISC-V: C ABI breakage for integer on stack

[Robbin Ehn]

Hi all,

This pull request contains a backport of commit [bfe7f920](https://github.com/openjdk/jdk/commit/bfe7f9205b56483b4364130a3a87c58c3fc82998) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Robbin Ehn on 11 Sep 2024 and was reviewed by Fei Yang and Ludovic Henry.

Not clean, locally tested the new jtreg test.

Thanks!

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Commit messages:
 - Backport bfe7f9205b56483b4364130a3a87c58c3fc82998

Changes: https://git.openjdk.org/jdk17u-dev/pull/2912/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2912&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8339741
  Stats: 156 lines in 4 files changed: 150 ins; 0 del; 6 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2912.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2912/head:pull/2912

PR: https://git.openjdk.org/jdk17u-dev/pull/2912