C2 VerifyIterativeGVN: verify CFG consistency (MultiBranchNode::required_outcnt() == outcnt())

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    • Type: Enhancement
    • Resolution: Unresolved
    • Priority: P4
    • tbd
    • Affects Version/s: 21
    • Component/s: hotspot

      This is a subtask of JDK-8298951.

      Recently, we have had a series of malformed control flow bugs.
      They only get triggered in Compile::final_graph_reshaping.
      I want to find more of them, and find them already after IGVN.

        1. X1.jasm
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            Assignee:
            Unassigned
            Reporter:
            Emanuel Peter
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              Created:
              Updated: