JDK-8263587 : C2: JVMS not cloned when needs_clone_jvms() is true
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 16,17
- Priority: P2
- Status: Resolved
- Resolution: Fixed
- CPU: ppc
- Submitted: 2021-03-15
- Updated: 2021-10-06
- Resolved: 2021-03-16
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| JDK 16 | JDK 17 |
|---|---|
| 16.0.2Fixed | 17 b14Fixed  |
Related Reports
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Description
We have observed assertions and crashes on PPC64 when running compiler/c2/Test6603011.java: assert((mcall == __null) || (mcall->jvms() == __null) || (mcall->jvms()->debug_start() + mcall->_jvmadj == mcall->tf()->domain()->cnt())) failed Or SIGSEGV in product build: # V [libjvm.so+0x5a5bc4] OopFlow::build_oop_map(Node*, int, PhaseRegAlloc*, int*)+0x494 JDK-8257211 has introduced new clone_jvms functions which miss needs_clone_jvms() checks. The crashes occur on PPC64, because Call nodes like MachCallDynamicJava require the ConstantTableBase as additional input edge at mach_constant_base_node_input(). The different input edge layout requires JVMS cloning which is indicated by needs_clone_jvms().
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