[jdk25u] RFR: 8365926: RISC-V: Performance regression in renaissance (chi-square)

[Fei Yang]

Hi all,

This pull request contains a backport of commit [5c1865a4](https://github.com/openjdk/jdk/commit/5c1865a4fcd5da80ddcc506f4e41aada0fb93970) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Robbin Ehn on 12 Sep 2025 and was reviewed by Fei Yang and Hamlin Li.

Thanks!

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Commit messages:
 - Backport 5c1865a4fcd5da80ddcc506f4e41aada0fb93970

Changes: https://git.openjdk.org/jdk25u/pull/207/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk25u&pr=207&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8365926
  Stats: 86 lines in 3 files changed: 68 ins; 0 del; 18 mod
  Patch: https://git.openjdk.org/jdk25u/pull/207.diff
  Fetch: git fetch https://git.openjdk.org/jdk25u.git pull/207/head:pull/207

PR: https://git.openjdk.org/jdk25u/pull/207