diff --git a/llvm/include/llvm/IR/Constants.h b/llvm/include/llvm/IR/Constants.h
--- a/llvm/include/llvm/IR/Constants.h
+++ b/llvm/include/llvm/IR/Constants.h
@@ -111,8 +111,12 @@
   /// either getSExtValue() or getZExtValue() will yield a correctly sized and
   /// signed value for the type Ty.
   /// Get a ConstantInt for a specific signed value.
-  static ConstantInt *getSigned(IntegerType *Ty, int64_t V);
-  static Constant *getSigned(Type *Ty, int64_t V);
+  static ConstantInt *getSigned(IntegerType *Ty, int64_t V) {
+    return get(Ty, V, true);
+  }
+  static Constant *getSigned(Type *Ty, int64_t V) {
+    return get(Ty, V, true);
+  }
 
   /// 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/llvm/lib/IR/Constants.cpp b/llvm/lib/IR/Constants.cpp
--- a/llvm/lib/IR/Constants.cpp
+++ b/llvm/lib/IR/Constants.cpp
@@ -899,14 +899,6 @@
   return get(Ty->getContext(), APInt(Ty->getBitWidth(), V, isSigned));
 }
 
-ConstantInt *ConstantInt::getSigned(IntegerType *Ty, int64_t V) {
-  return get(Ty, V, true);
-}
-
-Constant *ConstantInt::getSigned(Type *Ty, int64_t V) {
-  return get(Ty, V, true);
-}
-
 Constant *ConstantInt::get(Type *Ty, const APInt& V) {
   ConstantInt *C = get(Ty->getContext(), V);
   assert(C->getType() == Ty->getScalarType() &&