1 files changed, 9 insertions, 8 deletions
diff --git a/include/llvm/CodeGen/LiveVariables.h b/include/llvm/CodeGen/LiveVariables.h
index 26c0362..172fb75 100644
--- a/include/llvm/CodeGen/LiveVariables.h
+++ b/include/llvm/CodeGen/LiveVariables.h
@@ -29,9 +29,12 @@
 #ifndef LLVM_CODEGEN_LIVEVARIABLES_H
 #define LLVM_CODEGEN_LIVEVARIABLES_H
 
+#include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
+#include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/ADT/BitVector.h"
 #include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/SparseBitVector.h"
 
@@ -146,16 +149,14 @@ private:   // Intermediate data structures
   bool HandlePhysRegKill(unsigned Reg, MachineInstr *MI);
 
   void HandlePhysRegUse(unsigned Reg, MachineInstr *MI);
-  void HandlePhysRegDef(unsigned Reg, MachineInstr *MI);
+  void HandlePhysRegDef(unsigned Reg, MachineInstr *MI,
+                        SmallVector<unsigned, 4> &Defs);
+  void UpdatePhysRegDefs(MachineInstr *MI, SmallVector<unsigned, 4> &Defs);
 
   /// FindLastPartialDef - Return the last partial def of the specified register.
-  /// Also returns the sub-register that's defined.
-  MachineInstr *FindLastPartialDef(unsigned Reg, unsigned &PartDefReg);
-
-  /// hasRegisterUseBelow - Return true if the specified register is used after
-  /// the current instruction and before it's next definition.
-  bool hasRegisterUseBelow(unsigned Reg, MachineBasicBlock::iterator I,
-                           MachineBasicBlock *MBB);
+  /// Also returns the sub-registers that're defined by the instruction.
+  MachineInstr *FindLastPartialDef(unsigned Reg,
+                                   SmallSet<unsigned,4> &PartDefRegs);
 
   /// analyzePHINodes - Gather information about the PHI nodes in here. In
   /// particular, we want to map the variable information of a virtual