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diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.h b/llvm/lib/Target/PowerPC/PPCISelLowering.h
new file mode 100644
index 00000000000..4198e2637bc
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+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.h
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+//===-- PPC32ISelLowering.cpp - PPC32 DAG Lowering Impl. --------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by Chris Lattner and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the interfaces that PPC uses to lower LLVM code into a
+// selection DAG.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TARGET_POWERPC_PPC32ISELLOWERING_H
+#define LLVM_TARGET_POWERPC_PPC32ISELLOWERING_H
+
+#include "llvm/Target/TargetLowering.h"
+
+namespace llvm {
+  class PPC32TargetLowering : public TargetLowering {
+    int VarArgsFrameIndex;            // FrameIndex for start of varargs area.
+    int ReturnAddrIndex;              // FrameIndex for return slot.
+  public:
+    PPC32TargetLowering(TargetMachine &TM);
+    
+    /// LowerArguments - This hook must be implemented to indicate how we should
+    /// lower the arguments for the specified function, into the specified DAG.
+    virtual std::vector<SDOperand>
+      LowerArguments(Function &F, SelectionDAG &DAG);
+    
+    /// LowerCallTo - This hook lowers an abstract call to a function into an
+    /// actual call.
+    virtual std::pair<SDOperand, SDOperand>
+      LowerCallTo(SDOperand Chain, const Type *RetTy, bool isVarArg,
+                  unsigned CC,
+                  bool isTailCall, SDOperand Callee, ArgListTy &Args,
+                  SelectionDAG &DAG);
+    
+    virtual SDOperand LowerVAStart(SDOperand Chain, SDOperand VAListP,
+                                   Value *VAListV, SelectionDAG &DAG);
+    
+    virtual std::pair<SDOperand,SDOperand>
+      LowerVAArg(SDOperand Chain, SDOperand VAListP, Value *VAListV,
+                 const Type *ArgTy, SelectionDAG &DAG);
+    
+    virtual std::pair<SDOperand, SDOperand>
+      LowerFrameReturnAddress(bool isFrameAddr, SDOperand Chain, unsigned Depth,
+                              SelectionDAG &DAG);
+  };
+}
+
+#endif   // LLVM_TARGET_POWERPC_PPC32ISELLOWERING_H