[jdk26] RFR: 8373524: C2: no reachable node should have no use

Mon Jan 5 16:30:13 UTC 2026

Hi all,

This pull request contains a backport of commit [e72f205a](https://github.com/openjdk/jdk/commit/e72f205ae312b15ebab0cbeedb73bbf86e485251) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Roland Westrelin on 19 Dec 2025 and was reviewed by Christian Hagedorn and Manuel Hässig.

Thanks!

-------------

Commit messages:
 - Backport e72f205ae312b15ebab0cbeedb73bbf86e485251

Changes: https://git.openjdk.org/jdk/pull/29042/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29042&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8373524
  Stats: 94 lines in 2 files changed: 91 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/29042.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29042/head:pull/29042

PR: https://git.openjdk.org/jdk/pull/29042