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  1. JDK
  2. JDK-8287851

C2 crash: assert(t->meet(t0) == t) failed: Not monotonic

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    • b30
    • x86_64
    • linux

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      Description

        Test: java/lang/CompressExpandTest.java🎲

        #
        # A fatal error has been detected by the Java Runtime Environment:
        #
        # Internal Error (/opt/mach5/mesos/work_dir/slaves/779adf21-f3e5-4e6a-a889-8cc0f9bc6fbb-S67136/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/773331be-64c1-481f-954d-74fc36042879/runs/8d35a6c8-425c-411b-a870-816c78e5c42e/workspace/open/src/hotspot/share/opto/phaseX.cpp:1741), pid=13050, tid=13067
        # assert(t->meet(t0) == t) failed: Not monotonic
        #
        # JRE version: Java(TM) SE Runtime Environment (19.0+26) (fastdebug build 19-ea+26-1963)
        # Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 19-ea+26-1963, mixed mode, tiered, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
        # Problematic frame:
        # V [libjvm.so+0x17effde] PhaseCCP::analyze()+0x27e

        --------------- T H R E A D ---------------

        Current thread (0x00007fb2fc507f30): JavaThread "C2 CompilerThread0" daemon [_thread_in_native, id=13067, stack(0x00007fb2e0a9c000,0x00007fb2e0b9d000)]


        Current CompileTask:
        C2: 5680 1092 4 AbstractCompressExpandTest::testContiguousMasksInt (125 bytes)

        Stack: [0x00007fb2e0a9c000,0x00007fb2e0b9d000], sp=0x00007fb2e0b97f60, free space=1007k
        Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
        V [libjvm.so+0x17effde] PhaseCCP::analyze()+0x27e
        V [libjvm.so+0xb01f3f] Compile::Optimize()+0x96f
        V [libjvm.so+0xb04780] Compile::Compile(ciEnv*, ciMethod*, int, Options, DirectiveSet*)+0x1520
        V [libjvm.so+0x91b92a] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x62a
        V [libjvm.so+0xb132e8] CompileBroker::invoke_compiler_on_method(CompileTask*)+0xbb8
        V [libjvm.so+0xb142d8] CompileBroker::compiler_thread_loop()+0x6f8
        V [libjvm.so+0x1a9de9c] JavaThread::thread_main_inner()+0x23c
        V [libjvm.so+0x1aa93e0] Thread::call_run()+0x100
        V [libjvm.so+0x175b574] thread_native_entry(Thread*)+0x104

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                jbhateja Jatin Bhateja
                dholmes David Holmes
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                  Created:
                  Updated:
                  Resolved: