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  1. JDK
  2. JDK-8269575

C2: assert(false) failed: graph should be schedulable after JDK-8252372

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    • Subcomponent:
    • Resolved In Build:
      b30
    • Verification:
      Verified

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        Description

        Attached Fuzzer test fails:

        $ linux-x86_64-server-fastdebug/images/jdk/bin/java -Xcomp -XX:CompileOnly=Test Test

        # A fatal error has been detected by the Java Runtime Environment:
        #
        # Internal Error (/home/shade/trunks/jdk/src/hotspot/share/opto/lcm.cpp:1190), pid=2187087, tid=2187100
        # assert(false) failed: graph should be schedulable

        Current CompileTask:
        C2: 235 6 b 4 Test::mainTest (745 bytes)

        Stack: [0x00007f21c9e64000,0x00007f21c9f65000], sp=0x00007f21c9f5fb70, free space=1006k
        Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
        V [libjvm.so+0x1229004] PhaseCFG::schedule_local(Block*, GrowableArray<int>&, VectorSet&, long*)+0xe04
        V [libjvm.so+0xd2ead8] PhaseCFG::global_code_motion()+0xc38
        V [libjvm.so+0xd320d1] PhaseCFG::do_global_code_motion()+0x51
        V [libjvm.so+0xa1c44b] Compile::Code_Gen()+0x2ab
        V [libjvm.so+0xa2948b] Compile::Compile(ciEnv*, ciMethod*, int, bool, bool, bool, bool, bool, DirectiveSet*)+0x13bb
        V [libjvm.so+0x857106] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x646
        V [libjvm.so+0xa3ae19] CompileBroker::invoke_compiler_on_method(CompileTask*)+0xf19
        V [libjvm.so+0xa3bae8] CompileBroker::compiler_thread_loop()+0x598
        V [libjvm.so+0x19bf45c] JavaThread::thread_main_inner()+0x28c
        V [libjvm.so+0x19c4f24] Thread::call_run()+0x104
        V [libjvm.so+0x1556d2c] thread_native_entry(Thread*)+0x10c

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                Assignee:
                roland Roland Westrelin
                Reporter:
                shade Aleksey Shipilev
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                  Updated:
                  Resolved: