[jdk25u] RFR: 8362838: RISC-V: Incorrect matching rule leading to improper oop instruction encoding

Thu Jul 24 14:01:26 UTC 2025

Hi all,

This pull request contains a backport of commit [0ba2942c](https://github.com/openjdk/jdk/commit/0ba2942c6e7aadc3d091c40f6bd8d9f7502f5f76) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Feilong Jiang on 24 Jul 2025 and was reviewed by Fei Yang and Yadong Wang.

Thanks!

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Commit messages:
 - Backport 0ba2942c6e7aadc3d091c40f6bd8d9f7502f5f76

Changes: https://git.openjdk.org/jdk25u/pull/38/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk25u&pr=38&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8362838
  Stats: 31 lines in 1 file changed: 0 ins; 31 del; 0 mod
  Patch: https://git.openjdk.org/jdk25u/pull/38.diff
  Fetch: git fetch https://git.openjdk.org/jdk25u.git pull/38/head:pull/38

PR: https://git.openjdk.org/jdk25u/pull/38