diff --git a/include/llvm/Instructions.h b/include/llvm/Instructions.h
index cbcc0974e49..3a88b990749 100644
--- a/include/llvm/Instructions.h
+++ b/include/llvm/Instructions.h
@@ -467,6 +467,9 @@ public:
   /// @brief Return the predicate for this instruction.
   Predicate getPredicate() const { return Predicate(SubclassData); }
 
+  /// @brief Set the predicate for this instruction to the specified value.
+  void setPredicate(Predicate P) { SubclassData = P; }
+  
   /// For example, EQ -> NE, UGT -> ULE, SLT -> SGE, etc.
   /// @returns the inverse predicate for the instruction's current predicate. 
   /// @brief Return the inverse of the instruction's predicate.
@@ -609,6 +612,9 @@ public:
   /// @brief Return the predicate for this instruction.
   Predicate getPredicate() const { return Predicate(SubclassData); }
 
+  /// @brief Set the predicate for this instruction to the specified value.
+  void setPredicate(Predicate P) { SubclassData = P; }
+
   /// For example, OEQ -> UNE, UGT -> OLE, OLT -> UGE, etc.
   /// @returns the inverse predicate for the instructions current predicate. 
   /// @brief Return the inverse of the predicate