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  1. JDK
  2. JDK-8270540

G1: Refactor range checking in G1BlockOffsetTablePart::block_start* to asserts

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 18
    • Fix Version/s: 18
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      gc
    • Resolved In Build:
      b07

      Description

      G1BlockOffsetTablePart maintains a range limit (`_next_offset_index`) which should be in sync with `HeapRegion::_top`. We should never ask for cards corresponding to addresses ` >= HeapRegion::_top`.
       
      Therefore, we can change the range checking to asserts.

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          relates to

          Enhancement - null JDK-8271896 Remove unnecessary top address checks in BOT

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          links to

          Commit Commit openjdk/jdk/1d8d72d2

          Review Review openjdk/jdk/4794

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              Assignee:
              iwalulya Ivan Walulya
              Reporter:
              iwalulya Ivan Walulya
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