diff --git a/llvm/include/llvm/Target/MRegisterInfo.h b/llvm/include/llvm/Target/MRegisterInfo.h
index 8dbb13628cac..8c74c3235a65 100644
--- a/llvm/include/llvm/Target/MRegisterInfo.h
+++ b/llvm/include/llvm/Target/MRegisterInfo.h
@@ -433,7 +433,9 @@ public:
   /// processFunctionBeforeCalleeSavedScan - This method is called immediately
   /// before PrologEpilogInserter scans the physical registers used to determine
   /// what callee saved registers should be spilled. This method is optional.
-  virtual void processFunctionBeforeCalleeSavedScan(MachineFunction &MF) const {
+  virtual void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
+                                                RegScavenger *RS = NULL) const {
+
   }
 
   /// processFunctionBeforeFrameFinalized - This method is called immediately
diff --git a/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp b/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp
index 19ba9bc9150d..1029babe99e8 100644
--- a/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -874,7 +874,8 @@ void PPCRegisterInfo::determineFrameLayout(MachineFunction &MF) const {
   MFI->setStackSize(FrameSize);
 }
 
-void PPCRegisterInfo::processFunctionBeforeCalleeSavedScan(MachineFunction &MF)
+void PPCRegisterInfo::processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
+                                                           RegScavenger *RS)
   const {
   //  Save and clear the LR state.
   PPCFunctionInfo *FI = MF.getInfo<PPCFunctionInfo>();
diff --git a/llvm/lib/Target/PowerPC/PPCRegisterInfo.h b/llvm/lib/Target/PowerPC/PPCRegisterInfo.h
index 3a46dcd01370..e23ab336f05f 100644
--- a/llvm/lib/Target/PowerPC/PPCRegisterInfo.h
+++ b/llvm/lib/Target/PowerPC/PPCRegisterInfo.h
@@ -83,7 +83,8 @@ public:
   /// frame size.
   void determineFrameLayout(MachineFunction &MF) const;
 
-  void processFunctionBeforeCalleeSavedScan(MachineFunction &MF) const;
+  void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
+                                            RegScavenger *RS = NULL) const;
   void emitPrologue(MachineFunction &MF) const;
   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;