[jdk21u-dev] RFR: 8373525: C2: assert(_base == Long) failed: Not a Long

[Goetz Lindenmaier]

I backport this for parity with 21.0.11-oracle

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Commit messages:
 - Backport a61a1d32a2bbf227081b9da6d101071ceb73076a

Changes: https://git.openjdk.org/jdk21u-dev/pull/2572/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2572&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8373525
  Stats: 117 lines in 2 files changed: 116 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2572.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2572/head:pull/2572

PR: https://git.openjdk.org/jdk21u-dev/pull/2572