diff --git a/include/llvm/CodeGen/MachineOperand.h b/include/llvm/CodeGen/MachineOperand.h
index 6d4c98919ac..b0f7cc69f9c 100644
--- a/include/llvm/CodeGen/MachineOperand.h
+++ b/include/llvm/CodeGen/MachineOperand.h
@@ -68,11 +68,9 @@ private:
   /// This is only valid on definitions of registers.
   bool IsDead : 1;
 
-  /// IsEarlyClobber flag - this is only valid for MO_Register operands in
-  /// an inline asm.
-
-  /// IsEarlyClobber - True if this operand is marked earlyclobber in an
-  /// inline asm.  See gcc doc for description of earlyclobber.
+  /// IsEarlyClobber - True if this MO_Register operand is marked earlyclobber
+  /// in an inline asm.  Flag is not valid for any other case.   See gcc doc
+  /// for description of earlyclobber.
   bool IsEarlyClobber : 1;
 
   /// SubReg - Subregister number, only valid for MO_Register.  A value of 0
@@ -318,8 +316,7 @@ public:
   /// the specified value.  If an operand is known to be an register already,
   /// the setReg method should be used.
   void ChangeToRegister(unsigned Reg, bool isDef, bool isImp = false,
-                        bool isKill = false, bool isDead = false,
-                        bool isEarlyClobber = false);
+                        bool isKill = false, bool isDead = false);
   
   //===--------------------------------------------------------------------===//
   // Construction methods.
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index d54e7613f3b..7f2a7b6a077 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -104,11 +104,11 @@ void MachineOperand::ChangeToImmediate(int64_t ImmVal) {
 /// the specified value.  If an operand is known to be an register already,
 /// the setReg method should be used.
 void MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp,
-                                      bool isKill, bool isDead,
-                                      bool isEarlyClobber) {
+                                      bool isKill, bool isDead) {
   // If this operand is already a register operand, use setReg to update the 
   // register's use/def lists.
   if (isRegister()) {
+    assert(!isEarlyClobber());
     setReg(Reg);
   } else {
     // Otherwise, change this to a register and set the reg#.
@@ -127,7 +127,7 @@ void MachineOperand::ChangeToRegister(unsigned Reg, bool isDef, bool isImp,
   IsImp = isImp;
   IsKill = isKill;
   IsDead = isDead;
-  IsEarlyClobber = isEarlyClobber;
+  IsEarlyClobber = false;
   SubReg = 0;
 }