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  1. JDK
  2. JDK-8238691

C2: turn subtype check into macro node

    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 15
    • Fix Version/s: 15
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b11

      Description

      This should allow subtype checks that can't be compiled as a simple pointer comparison at parse time to:

      - better constant fold
      - be candidate for predication and split if
      - have a chance of being compiled as a simple pointer comparison if type information improves

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              • Assignee:
                roland Roland Westrelin
                Reporter:
                roland Roland Westrelin
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                • Created:
                  Updated:
                  Resolved: