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diff --git a/contrib/llvm/lib/ExecutionEngine/JIT/JITDwarfEmitter.h b/contrib/llvm/lib/ExecutionEngine/JIT/JITDwarfEmitter.h
new file mode 100644
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--- /dev/null
+++ b/contrib/llvm/lib/ExecutionEngine/JIT/JITDwarfEmitter.h
@@ -0,0 +1,73 @@
+//===------ JITDwarfEmitter.h - Write dwarf tables into memory ------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines a JITDwarfEmitter object that is used by the JIT to
+// write dwarf tables to memory.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_EXECUTION_ENGINE_JIT_DWARFEMITTER_H
+#define LLVM_EXECUTION_ENGINE_JIT_DWARFEMITTER_H
+
+namespace llvm {
+
+class Function;
+class JITCodeEmitter;
+class MachineFunction;
+class MachineModuleInfo;
+class MachineMove;
+class MCAsmInfo;
+class TargetData;
+class TargetMachine;
+class TargetRegisterInfo;
+
+class JITDwarfEmitter {
+  const TargetData* TD;
+  JITCodeEmitter* JCE;
+  const TargetRegisterInfo* RI;
+  const MCAsmInfo *MAI;
+  MachineModuleInfo* MMI;
+  JIT& Jit;
+  bool stackGrowthDirection;
+
+  unsigned char* EmitExceptionTable(MachineFunction* MF,
+                                    unsigned char* StartFunction,
+                                    unsigned char* EndFunction) const;
+
+  void EmitFrameMoves(intptr_t BaseLabelPtr,
+                      const std::vector<MachineMove> &Moves) const;
+
+  unsigned char* EmitCommonEHFrame(const Function* Personality) const;
+
+  unsigned char* EmitEHFrame(const Function* Personality,
+                             unsigned char* StartBufferPtr,
+                             unsigned char* StartFunction,
+                             unsigned char* EndFunction,
+                             unsigned char* ExceptionTable) const;
+
+public:
+
+  JITDwarfEmitter(JIT& jit);
+
+  unsigned char* EmitDwarfTable(MachineFunction& F,
+                                JITCodeEmitter& JCE,
+                                unsigned char* StartFunction,
+                                unsigned char* EndFunction,
+                                unsigned char* &EHFramePtr);
+
+
+  void setModuleInfo(MachineModuleInfo* Info) {
+    MMI = Info;
+  }
+};
+
+
+} // end namespace llvm
+
+#endif // LLVM_EXECUTION_ENGINE_JIT_DWARFEMITTER_H