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  1. JDK
  2. JDK-8257498

Remove useless skeleton predicates

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 16, 17
    • Fix Version/s: 17
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b08

      Description

      PhaseIdealLoop::eliminate_useless_predicates() is currently only able to remove useless predicates with Opaque1 nodes. We could improve this by also eliminating skeleton predicates (with Opaque4 nodes) that become useless because a loop could have been removed.

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              Assignee:
              chagedorn Christian Hagedorn
              Reporter:
              chagedorn Christian Hagedorn
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