diff --git a/include/llvm/CodeGen/MachineBasicBlock.h b/include/llvm/CodeGen/MachineBasicBlock.h
index e89b64eea61..2ab16243752 100644
--- a/include/llvm/CodeGen/MachineBasicBlock.h
+++ b/include/llvm/CodeGen/MachineBasicBlock.h
@@ -16,6 +16,7 @@
 
 #include "llvm/CodeGen/MachineInstr.h"
 #include "Support/ilist"
+#include <iosfwd>
 
 namespace llvm {
 
@@ -127,6 +128,10 @@ public:
   iterator erase(iterator I, iterator E) { return Insts.erase(I, E); }
   MachineInstr* remove(iterator &I)      { return Insts.remove(I); }
 
+  // Debugging methods.
+  void dump() const;
+  void print(std::ostream &OS) const;
+
 private:   // Methods used to maintain doubly linked list of blocks...
   friend class ilist_traits<MachineBasicBlock>;