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  1. JDK
  2. JDK-8232896

ZGC: Enable C2 clone intrinsic

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Details

    • Enhancement
    • Resolution: Fixed
    • P4
    • 14
    • 14
    • hotspot
    • b22

    Description

      ZGC currently disables the C2 clone intrinsic. In order to support it, BarrierSetC2::clone_at_expansion() must be overridden to perform a leaf call to the VM to walk the source object oops. The support for array object cloning is already in place. There is an ideal transformation for small clones but the fallback is missing.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8234520 ZGC: C2: Oop instance cloning causing skipped compiles

          • P3 - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8233783 Make 8232896 patch complete

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

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              neliasso Nils Eliasson (Inactive)
              eosterlund Erik Österlund
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                Updated:
                Resolved: