[LLVMbugs] [Bug 1216] NEW: JITResolver shouldn't outlive its ExecutionEngine

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=1216

           Summary: JITResolver shouldn't outlive its ExecutionEngine
           Product: libraries
           Version: trunk
          Platform: PC
               URL: http://xzrq.net/reee/reee.cpp
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Target-Independent JIT
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: ppergame at gmail.com


JIT uses the instance of JITResolver stored in a static variable in
getJITResolver(). This means that JITResolver::ExternalFnToStubMap is not
cleared between consecutive, independent JIT invocations.

When the ExecutionEngine is deleted, the stub goes away via JITMemoryManager,
but the reference remains. The next ExecutionEngine tries to reuse the invalid
stubs and segfaults.



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