3 files changed, 3 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/MachineBasicBlock.h b/include/llvm/CodeGen/MachineBasicBlock.h
index de0a4c40f1..388ca7f93b 100644
--- a/include/llvm/CodeGen/MachineBasicBlock.h
+++ b/include/llvm/CodeGen/MachineBasicBlock.h
@@ -40,6 +40,7 @@ public:
 
   MachineInstr *provideInitialHead() const { return createSentinel(); }
   MachineInstr *ensureHead(MachineInstr*) const { return createSentinel(); }
+  static void noteHead(MachineInstr*, MachineInstr*) {}
 
   void addNodeToList(MachineInstr* N);
   void removeNodeFromList(MachineInstr* N);
diff --git a/include/llvm/CodeGen/MachineFunction.h b/include/llvm/CodeGen/MachineFunction.h
index 7386b2b128..dc7fa8cb16 100644
--- a/include/llvm/CodeGen/MachineFunction.h
+++ b/include/llvm/CodeGen/MachineFunction.h
@@ -48,6 +48,7 @@ public:
   MachineBasicBlock *ensureHead(MachineBasicBlock*) const {
     return createSentinel();
   }
+  static void noteHead(MachineBasicBlock*, MachineBasicBlock*) {}
 
   void addNodeToList(MachineBasicBlock* MBB);
   void removeNodeFromList(MachineBasicBlock* MBB);
diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h
index b895242f57..7e81e02073 100644
--- a/include/llvm/CodeGen/SelectionDAG.h
+++ b/include/llvm/CodeGen/SelectionDAG.h
@@ -48,6 +48,7 @@ public:
 
   SDNode *provideInitialHead() const { return createSentinel(); }
   SDNode *ensureHead(SDNode*) const { return createSentinel(); }
+  static void noteHead(SDNode*, SDNode*) {}
 
   static void deleteNode(SDNode *) {
     assert(0 && "ilist_traits<SDNode> shouldn't see a deleteNode call!");