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  1. JDK
  2. JDK-8263189

C2: assert(!had_error) failed: bad dominance

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    • Subcomponent:
    • Introduced In Build:
      b27
    • Introduced In Version:
      16
    • Resolved In Build:
      b15
    • Verification:
      Verified

      Description

      The attached fuzzer test fails starts to fail after JDK-8256655 with the following assertion:

      To reproduce:
      java -Xcomp -XX:-TieredCompilation -XX:CompileOnly=Test Test.java
      java -Xcomp -XX:-TieredCompilation -XX:CompileOnly=Reduced Reduced.java

      #
      # A fatal error has been detected by the Java Runtime Environment:
      #
      # Internal Error (/opt/mach5/mesos/work_dir/slaves/28992c6d-c35d-42fa-8099-898223bf183b-S1640/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/7a42df58-80a3-4376-b469-ed090a308636/runs/e3e50449-b968-490c-9564-c40c69f04761/workspace/open/src/hotspot/share/opto/loopnode.cpp:4916), pid=8886, tid=8899
      # assert(!had_error) failed: bad dominance
      #
      # JRE version: Java(TM) SE Runtime Environment (17.0+12) (fastdebug build 17-ea+12-LTS-906)
      # Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 17-ea+12-LTS-906, compiled mode, sharing, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
      # Problematic frame:
      # V [libjvm.so+0x12c9bb2] PhaseIdealLoop::compute_lca_of_uses(Node*, Node*, bool)+0x6e2
      ..........
      Command Line: -Xmx1G -Xcomp -Xbatch -XX:-TieredCompilation -XX:CompileOnly=Test -XX:CompileCommand=quiet Test
      ..........
      Current thread (0x00007fd3f0492fa0): JavaThread "C2 CompilerThread0" daemon [_thread_in_native, id=8899, stack(0x00007fd3cb4fd000,0x00007fd3cb5fe000)]


      Current CompileTask:
      C2: 504 4 b Test::vMeth (266 bytes)

      Stack: [0x00007fd3cb4fd000,0x00007fd3cb5fe000], sp=0x00007fd3cb5f81c0, free space=1004k
      Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)
      V [libjvm.so+0x12c9bb2] PhaseIdealLoop::compute_lca_of_uses(Node*, Node*, bool)+0x6e2
      V [libjvm.so+0x12ca5d0] PhaseIdealLoop::build_loop_late_post_work(Node*, bool)+0x1d0
      V [libjvm.so+0x12cabaa] PhaseIdealLoop::build_loop_late(VectorSet&, Node_List&, Node_Stack&)+0xba
      V [libjvm.so+0x12d14a7] PhaseIdealLoop::build_and_optimize(LoopOptsMode)+0x507
      V [libjvm.so+0xa13421] PhaseIdealLoop::verify(PhaseIterGVN&)+0x341
      V [libjvm.so+0xa0561f] Compile::process_for_post_loop_opts_igvn(PhaseIterGVN&)+0x1f
      V [libjvm.so+0xa0f7a0] Compile::Optimize()+0x15f0
      V [libjvm.so+0xa114b5] Compile::Compile(ciEnv*, ciMethod*, int, bool, bool, bool, bool, DirectiveSet*)+0x1905
      V [libjvm.so+0x83ceca] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x1ea
      V [libjvm.so+0xa212d1] CompileBroker::invoke_compiler_on_method(CompileTask*)+0xf21
      V [libjvm.so+0xa21f78] CompileBroker::compiler_thread_loop()+0x5a8
      V [libjvm.so+0x1843131] JavaThread::thread_main_inner()+0x271
      V [libjvm.so+0x184afa0] Thread::call_run()+0x100
      V [libjvm.so+0x1536a06] thread_native_entry(Thread*)+0x116

        Attachments

        1. FuzzerUtils.java
          13 kB
        2. hs_err_pid8886.log
          169 kB
        3. Reduced.java
          0.9 kB
        4. Test.java
          8 kB

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              Assignee:
              roland Roland Westrelin
              Reporter:
              chagedorn Christian Hagedorn
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                Dates

                Created:
                Updated:
                Resolved: