JDK-8269752 : C2: assert(false) failed: Bad graph detected in build_loop_late
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 17,18
- Priority: P2
- Status: Closed
- Resolution: Fixed
- Submitted: 2021-07-01
- Updated: 2022-11-30
- Resolved: 2021-07-19
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.
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.
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 | JDK 18 |
|---|---|
17 b32Fixed  |
18Fixed |
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Description
The attached Java Fuzzer test starts to fail after JDK-8252372 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/35546316-ed70-4084-8244-d672e7734fd1-S57035/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/41fc080c-d2db-43a6-87b0-daa1149175bc/runs/ea6bcc43-d159-4998-ab37-df1970ab9b47/workspace/open/src/hotspot/share/opto/loopnode.cpp:5331), pid=19558, tid=19572 # assert(false) failed: Bad graph detected in build_loop_late # # JRE version: Java(TM) SE Runtime Environment (17.0+28) (fastdebug build 17-ea+28-LTS-2534) # Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 17-ea+28-LTS-2534, compiled mode, sharing, compressed oops, compressed class ptrs, g1 gc, linux-amd64) # Problematic frame: # V [libjvm.so+0x1307677] PhaseIdealLoop::build_loop_late_post_work(Node*, bool)+0x307 ............ Command Line: -Xmx1G -Xcomp -Xbatch -XX:-TieredCompilation -XX:CompileOnly=Test -XX:CompileCommand=quiet Test ............ Current thread (0x00007f440847fc40): JavaThread "C2 CompilerThread0" daemon [_thread_in_native, id=19572, stack(0x00007f43ec8f8000,0x00007f43ec9f9000)] Current CompileTask: C2: 391 5 b Test::vMeth (360 bytes) Stack: [0x00007f43ec8f8000,0x00007f43ec9f9000], sp=0x00007f43ec9f3310, free space=1004k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0x1307677] PhaseIdealLoop::build_loop_late_post_work(Node*, bool)+0x307 V [libjvm.so+0x1307b1a] PhaseIdealLoop::build_loop_late(VectorSet&, Node_List&, Node_Stack&)+0xba V [libjvm.so+0x1308487] PhaseIdealLoop::build_and_optimize(LoopOptsMode)+0x507 V [libjvm.so+0xa2a6aa] PhaseIdealLoop::optimize(PhaseIterGVN&, LoopOptsMode)+0x2da V [libjvm.so+0xa26fc5] Compile::Optimize()+0x14f5 V [libjvm.so+0xa28b48] Compile::Compile(ciEnv*, ciMethod*, int, bool, bool, bool, bool, bool, DirectiveSet*)+0x1618 V [libjvm.so+0x849aa6] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x646 V [libjvm.so+0xa397a9] CompileBroker::invoke_compiler_on_method(CompileTask*)+0xfb9 V [libjvm.so+0xa3a518] CompileBroker::compiler_thread_loop()+0x5a8 V [libjvm.so+0x18b8251] JavaThread::thread_main_inner()+0x271 V [libjvm.so+0x18bff70] Thread::call_run()+0x100 V [libjvm.so+0x158c7c4] thread_native_entry(Thread*)+0x104
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