diff --git a/include/llvm/Constants.h b/include/llvm/Constants.h
index 988b53a284c..c307356247c 100644
--- a/include/llvm/Constants.h
+++ b/include/llvm/Constants.h
@@ -94,7 +94,7 @@ public:
   /// either getSExtValue() or getZExtValue() will yield a correctly sized and
   /// signed value for the type Ty.
   /// @brief Get a ConstantInt for a specific value.
-  static ConstantInt *get(const Type *Ty, uint64_t V);
+  static ConstantInt *get(const Type *Ty, uint64_t V, bool isSigned = false);
 
   /// Return a ConstantInt with the specified value and an implied Type. The
   /// type is the integer type that corresponds to the bit width of the value.
diff --git a/lib/VMCore/Constants.cpp b/lib/VMCore/Constants.cpp
index 1685923e433..e5417f52456 100644
--- a/lib/VMCore/Constants.cpp
+++ b/lib/VMCore/Constants.cpp
@@ -203,9 +203,9 @@ typedef DenseMap<DenseMapAPIntKeyInfo::KeyTy, ConstantInt*,
                  DenseMapAPIntKeyInfo> IntMapTy;
 static ManagedStatic<IntMapTy> IntConstants;
 
-ConstantInt *ConstantInt::get(const Type *Ty, uint64_t V) {
+ConstantInt *ConstantInt::get(const Type *Ty, uint64_t V, bool isSigned) {
   const IntegerType *ITy = cast<IntegerType>(Ty);
-  return get(APInt(ITy->getBitWidth(), V));
+  return get(APInt(ITy->getBitWidth(), V, isSigned));
 }
 
 // Get a ConstantInt from an APInt. Note that the value stored in the DenseMap