Index: include/llvm/IR/Instructions.h
===================================================================
--- include/llvm/IR/Instructions.h
+++ include/llvm/IR/Instructions.h
@@ -1247,6 +1247,8 @@
 /// vectors of floating point values. The operands must be identical types.
 /// \brief Represents a floating point comparison operator.
 class FCmpInst: public CmpInst {
+  void anchor() override;
+
 protected:
   // Note: Instruction needs to be a friend here to call cloneImpl.
   friend class Instruction;
@@ -2188,6 +2190,8 @@
 class ExtractValueInst : public UnaryInstruction {
   SmallVector<unsigned, 4> Indices;
 
+  void anchor() override;
+
   ExtractValueInst(const ExtractValueInst &EVI);
   void init(ArrayRef<unsigned> Idxs, const Twine &NameStr);
 
@@ -2297,6 +2301,8 @@
 class InsertValueInst : public Instruction {
   SmallVector<unsigned, 4> Indices;
 
+  void anchor() override;
+
   void *operator new(size_t, unsigned) = delete;
   InsertValueInst(const InsertValueInst &IVI);
   void init(Value *Agg, Value *Val, ArrayRef<unsigned> Idxs,
Index: lib/IR/Instructions.cpp
===================================================================
--- lib/IR/Instructions.cpp
+++ lib/IR/Instructions.cpp
@@ -1820,6 +1820,8 @@
 //                             InsertValueInst Class
 //===----------------------------------------------------------------------===//
 
+void InsertValueInst::anchor() {}
+
 void InsertValueInst::init(Value *Agg, Value *Val, ArrayRef<unsigned> Idxs, 
                            const Twine &Name) {
   assert(getNumOperands() == 2 && "NumOperands not initialized?");
@@ -1852,6 +1854,8 @@
 //                             ExtractValueInst Class
 //===----------------------------------------------------------------------===//
 
+void ExtractValueInst::anchor() {}
+
 void ExtractValueInst::init(ArrayRef<unsigned> Idxs, const Twine &Name) {
   assert(getNumOperands() == 1 && "NumOperands not initialized?");
 
@@ -3577,6 +3581,8 @@
   }
 }
 
+void FCmpInst::anchor() {}
+
 
 //===----------------------------------------------------------------------===//
 //                        SwitchInst Implementation