JDK-8269797 : C2: assert(!in->is_CFG()) failed: CFG Node with no controlling input after JDK-8252372
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 17,18
- Priority: P2
- Status: Closed
- Resolution: Duplicate
- Submitted: 2021-07-02
- Updated: 2021-07-05
- Resolved: 2021-07-05
The Version table provides details related to the release that this issue/RFE will be addressed.
Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
To download the current JDK release, click here.
| JDK 17 |
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17Resolved  |
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Description
Attached fuzzer test fails after $ ../build/linux-x86_64-server-fastdebug/images/jdk/bin/java -XX:+UnlockDiagnosticVMOptions -Xcomp -XX:CompileOnly=Test -XX:-TieredCompilation Test # A fatal error has been detected by the Java Runtime Environment: # # Internal Error (/home/shade/trunks/jdk/src/hotspot/share/opto/loopnode.cpp:4791), pid=3211328, tid=3211341 # assert(!in->is_CFG()) failed: CFG Node with no controlling input? Current thread (0x00007f600c352a30): JavaThread "C2 CompilerThread0" daemon [_thread_in_native, id=3211341, stack(0x00007f5fa8238000,0x00007f5fa8339000)] Current CompileTask: C2: 244 7 !b Test::fMeth (249 bytes) Stack: [0x00007f5fa8238000,0x00007f5fa8339000], sp=0x00007f5fa8333390, free space=1004k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0x12d7df4] PhaseIdealLoop::build_loop_early(VectorSet&, Node_List&, Node_Stack&)+0x624 V [libjvm.so+0x12e2d3a] PhaseIdealLoop::build_and_optimize(LoopOptsMode)+0x49a V [libjvm.so+0xa35515] PhaseIdealLoop::optimize(PhaseIterGVN&, LoopOptsMode)+0x2d5 V [libjvm.so+0xa3293f] Compile::Optimize()+0xd8f V [libjvm.so+0xa340dd] Compile::Compile(ciEnv*, ciMethod*, int, bool, bool, bool, bool, DirectiveSet*)+0x120d V [libjvm.so+0x86983e] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x1ee V [libjvm.so+0xa458e9] CompileBroker::invoke_compiler_on_method(CompileTask*)+0xf19 V [libjvm.so+0xa465c8] CompileBroker::compiler_thread_loop()+0x5a8 V [libjvm.so+0x19d6a51] JavaThread::thread_main_inner()+0x281 V [libjvm.so+0x19de184] Thread::call_run()+0x104 V [libjvm.so+0x155622e] thread_native_entry(Thread*)+0x10e Bisection points to reliable failure after JDK-
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