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  1. JDK
  2. JDK-8266618

Remove broken -XX:-OptoRemoveUseless

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    • Subcomponent:
    • Resolved In Build:
      b22

      Description

      Similar to JDK-8266542, simply running java -XX:-OptoRemoveUseless already crashes the VM:

      # To suppress the following error report, specify this argument
      # after -XX: or in .hotspotrc: SuppressErrorAt=/cfgnode.cpp:1893
      #
      # A fatal error has been detected by the Java Runtime Environment:
      #
      # Internal Error (/oracle/jdk/open/src/hotspot/share/opto/cfgnode.cpp:1893), pid=1597067, tid=1597080
      # assert(r->in(0) == __null || !r->in(0)->is_Root()) failed: not a specially hidden merge
      #
      # JRE version: Java(TM) SE Runtime Environment (17.0) (fastdebug build 17-internal+0-LTS-2021-05-04-1333554.tobias...)
      # Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 17-internal+0-LTS-2021-05-04-1333554.tobias..., mixed mode, tiered, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
      # Problematic frame:
      # V [libjvm.so+0x8b1dc4] PhiNode::Ideal(PhaseGVN*, bool)+0x6e4

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              Assignee:
              thartmann Tobias Hartmann
              Reporter:
              thartmann Tobias Hartmann
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                Updated:
                Resolved: