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  1. JDK
  2. JDK-8235981

Introduce a flag to enable JVM intrinsics

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    Details

    • Type: Enhancement
    • Status: Closed
    • Priority: P3
    • Resolution: Duplicate
    • Affects Version/s: 15
    • Fix Version/s: 15
    • Component/s: hotspot
    • Labels:

      Description

      Introduce a way to enable JVM intrinsics from command-line.

      Right now, there's no way to introduce experimental intrinsics which are turned off by default and let users enable them on their side.

      There's -XX:DisableIntrinsic= present to *disable* intrinsics. Instead of introducing -XX:EnableIntrinsic= equivalent, it would be nice to have a new option which supersede both and supports both enabling and disabling arbitrary set of intrinsics. As an example:
        -XX:ControlIntrinsic=+_dabs,-_fabs,-_getClass

      It makes sense to require -XX:+UnlockExperimentalVMOptions when enabling intrinsics.

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              Assignee:
              xliu Xin Liu
              Reporter:
              vlivanov Vladimir Ivanov
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