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  1. JDK
  2. JDK-8214763

add compiler intrinsic to materialize objects

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Details

    • Enhancement
    • Status: Open
    • P2
    • Resolution: Unresolved
    • 12
    • tbd
    • hotspot

    Description

      The C2 and Graal compilers can eliminate allocations, producing virtual objects, if escape analysis determines that the objects never escape. However, in order to ensure that the objects show up in stack walks, we need a way to materialize these objects (as if they always escape).

      One way to do this is to pass the object to a native method, but a compiler intrinsic would be better.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8214584 stackwalk returns null for scalar-replaced value

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

          Bug - A problem which impairs or prevents the functions of the product. JDK-8214583 AccessController.getContext may return wrong value after JDK-8212605

          • P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Enhancement - null JDK-8214585 LiveStackFrameInfo.getLocals does not materialize virtual objects

          • P3 - Major loss of function.
          • Open

          Enhancement - null JDK-8259316 [REDO] C1/C2 compiler support for blackholes

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

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              Unassigned Unassigned
              dlong Dean Long
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              Dates

                Created:
                Updated: