diff --git a/lib/CodeGen/RegAlloc/PhyRegAlloc.h b/lib/CodeGen/RegAlloc/PhyRegAlloc.h
index d58feb60607..e30cc8f9cc9 100644
--- a/lib/CodeGen/RegAlloc/PhyRegAlloc.h
+++ b/lib/CodeGen/RegAlloc/PhyRegAlloc.h
@@ -69,6 +69,10 @@ class PhyRegAlloc {
   // AddedInstrMap - Used to store instrns added in this phase
   std::map<const MachineInstr *, AddedInstrns> AddedInstrMap;
 
+  // ScratchRegsUsed - Contains scratch register uses for a particular MI.
+  typedef std::multimap<const MachineInstr*, int> ScratchRegsUsedTy;
+  ScratchRegsUsedTy ScratchRegsUsed;
+
   AddedInstrns AddedInstrAtEntry;       // to store instrns added at entry
   LoopInfo *LoopDepthCalc;              // to calculate loop depths 
 
diff --git a/lib/Target/SparcV9/RegAlloc/PhyRegAlloc.h b/lib/Target/SparcV9/RegAlloc/PhyRegAlloc.h
index d58feb60607..e30cc8f9cc9 100644
--- a/lib/Target/SparcV9/RegAlloc/PhyRegAlloc.h
+++ b/lib/Target/SparcV9/RegAlloc/PhyRegAlloc.h
@@ -69,6 +69,10 @@ class PhyRegAlloc {
   // AddedInstrMap - Used to store instrns added in this phase
   std::map<const MachineInstr *, AddedInstrns> AddedInstrMap;
 
+  // ScratchRegsUsed - Contains scratch register uses for a particular MI.
+  typedef std::multimap<const MachineInstr*, int> ScratchRegsUsedTy;
+  ScratchRegsUsedTy ScratchRegsUsed;
+
   AddedInstrns AddedInstrAtEntry;       // to store instrns added at entry
   LoopInfo *LoopDepthCalc;              // to calculate loop depths