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  1. JDK
  2. JDK-8148994

Replacing MH::invokeBasic with a direct call breaks LF customization

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Details

    • b103
    • 9
    • b108
    • generic

    Description

      9b103 has a serious performance regressions of octane benchmarks (nashorn).

      Particularly a large performance regression is observed on Richards and DeltaBlue.
      it's proved that regression on Richards is caused by JDK-8072008 commit.
      Looks like DeltaBlue has the same regression source.
      Inline of the following MH methods were broken:
      - java.lang.invoke.LambdaForm$MH::guard
      - java.lang.invoke.MethodHandle::invokeBasic
      - java.lang.invoke.LambdaForm$BMH::reinvoke
      - java.lang.invoke.LambdaForm$MH::delegate

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          duplicates

          Bug - A problem which impairs or prevents the functions of the product. JDK-8150376 Nashorn performance regression in JDK9 b103

          • P3 - Major loss of function.
          • Closed
          relates to

          Enhancement - null JDK-8149040 Cleanup compiler/jsr292/NonInlinedCall tests after JDK-8148994

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

          Enhancement - null JDK-8072008 Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls

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

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              vlivanov Vladimir Ivanov
              skuksenko Sergey Kuksenko
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                Created:
                Updated:
                Resolved: