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  1. JDK
  2. JDK-8312980

C2: "malformed control flow" created during incremental inlining

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    • b21

    Description

      Generic bug title, please change it to something more descriptive once the root cause is known.

      The test java/util/concurrent/tck/JSR166TestCase.java is failing intermittently in our CI with the assertion below. I was not able to reproduce this by running the test, yet. However, the attached replay file can reduce the failure.

      To reproduce:
      $ java -XX:+ReplayCompiles -XX:+ReplayIgnoreInitErrors -XX:ReplayDataFile=r.log

      #
      # A fatal error has been detected by the Java Runtime Environment:
      #
      # Internal Error (c:\sb\prod\1690244353\workspace\open\src\hotspot\share\opto\compile.cpp:3996), pid=11052, tid=12172
      # assert(false) failed: malformed control flow

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              roland Roland Westrelin
              chagedorn Christian Hagedorn
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