[jdk17u] RFR: 8274406: RunThese30M.java failed "assert(!LCA_orig->dominates(pred_block) || early->dominates(pred_block)) failed: early is high enough"

[Tobias Hartmann]

Backport of [JDK-8274406](https://bugs.openjdk.java.net/browse/JDK-8274406). Applies cleanly. Approval is pending.

Thanks,
Tobias

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Commit messages:
 - 8274406: RunThese30M.java failed "assert(!LCA_orig->dominates(pred_block) || early->dominates(pred_block)) failed: early is high enough"

Changes: https://git.openjdk.java.net/jdk17u/pull/173/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u&pr=173&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8274406
  Stats: 4 lines in 2 files changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk17u/pull/173.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u pull/173/head:pull/173

PR: https://git.openjdk.java.net/jdk17u/pull/173