diff --git a/lib/CodeGen/MachineFunction.cpp b/lib/CodeGen/MachineFunction.cpp
index 14ba360..d0773ff 100644
--- a/lib/CodeGen/MachineFunction.cpp
+++ b/lib/CodeGen/MachineFunction.cpp
@@ -73,6 +73,9 @@
 // MachineFunction implementation
 //===---------------------------------------------------------------------===//
 
+// Out of line virtual method.
+MachineFunctionInfo::~MachineFunctionInfo() {}
+
 void ilist_traits<MachineBasicBlock>::deleteNode(MachineBasicBlock *MBB) {
   MBB->getParent()->DeleteMachineBasicBlock(MBB);
 }