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diff --git a/include/llvm/CodeGen/DwarfWriter.h b/include/llvm/CodeGen/DwarfWriter.h
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+++ b/include/llvm/CodeGen/DwarfWriter.h
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+//===-- llvm/CodeGen/DwarfWriter.h - Dwarf Framework ------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains support for writing Dwarf debug and exception info into
+// asm files.  For Details on the Dwarf 3 specfication see DWARF Debugging
+// Information Format V.3 reference manual http://dwarf.freestandards.org ,
+//
+// The role of the Dwarf Writer class is to extract information from the
+// MachineModuleInfo object, organize it in Dwarf form and then emit it into asm
+// the current asm file using data and high level Dwarf directives.
+// 
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CODEGEN_DWARFWRITER_H
+#define LLVM_CODEGEN_DWARFWRITER_H
+
+#include "llvm/Pass.h"
+#include "llvm/Target/TargetMachine.h"
+
+namespace llvm {
+
+class AsmPrinter;
+class DwarfDebug;
+class DwarfException;
+class MachineModuleInfo;
+class MachineFunction;
+class MachineInstr;
+class Value;
+class Module;
+class GlobalVariable;
+class TargetAsmInfo;
+class raw_ostream;
+class Instruction;
+class DICompileUnit;
+class DISubprogram;
+class DIVariable;
+
+//===----------------------------------------------------------------------===//
+// DwarfWriter - Emits Dwarf debug and exception handling directives.
+//
+
+class DwarfWriter : public ImmutablePass {
+private:
+  /// DD - Provides the DwarfWriter debug implementation.
+  ///
+  DwarfDebug *DD;
+
+  /// DE - Provides the DwarfWriter exception implementation.
+  ///
+  DwarfException *DE;
+
+public:
+  static char ID; // Pass identification, replacement for typeid
+
+  DwarfWriter();
+  virtual ~DwarfWriter();
+
+  //===--------------------------------------------------------------------===//
+  // Main entry points.
+  //
+  
+  /// BeginModule - Emit all Dwarf sections that should come prior to the
+  /// content.
+  void BeginModule(Module *M, MachineModuleInfo *MMI, raw_ostream &OS,
+                   AsmPrinter *A, const TargetAsmInfo *T);
+  
+  /// EndModule - Emit all Dwarf sections that should come after the content.
+  ///
+  void EndModule();
+  
+  /// BeginFunction - Gather pre-function debug information.  Assumes being 
+  /// emitted immediately after the function entry point.
+  void BeginFunction(MachineFunction *MF);
+  
+  /// EndFunction - Gather and emit post-function debug information.
+  ///
+  void EndFunction(MachineFunction *MF);
+
+  /// RecordSourceLine - Register a source line with debug info. Returns a
+  /// unique label ID used to generate a label and provide correspondence to
+  /// the source line list.
+  unsigned RecordSourceLine(unsigned Line, unsigned Col, DICompileUnit CU);
+
+  /// RecordRegionStart - Indicate the start of a region.
+  unsigned RecordRegionStart(GlobalVariable *V);
+
+  /// RecordRegionEnd - Indicate the end of a region.
+  unsigned RecordRegionEnd(GlobalVariable *V);
+
+  /// getRecordSourceLineCount - Count source lines.
+  unsigned getRecordSourceLineCount();
+
+  /// RecordVariable - Indicate the declaration of  a local variable.
+  ///
+  void RecordVariable(GlobalVariable *GV, unsigned FrameIndex, 
+                      const MachineInstr *MI);
+
+  /// ShouldEmitDwarfDebug - Returns true if Dwarf debugging declarations should
+  /// be emitted.
+  bool ShouldEmitDwarfDebug() const;
+
+  //// RecordInlinedFnStart - Indicate the start of a inlined function.
+  unsigned RecordInlinedFnStart(DISubprogram SP, DICompileUnit CU,
+                                unsigned Line, unsigned Col);
+
+  /// RecordInlinedFnEnd - Indicate the end of inlined subroutine.
+  unsigned RecordInlinedFnEnd(DISubprogram SP);
+
+  /// RecordVariableScope - Record scope for the variable declared by
+  /// DeclareMI. DeclareMI must describe TargetInstrInfo::DECLARE.
+  void RecordVariableScope(DIVariable &DV, const MachineInstr *DeclareMI);
+};
+
+
+} // end llvm namespace
+
+#endif