Index: include/llvm/Analysis/MemorySSAUpdater.h
===================================================================
--- include/llvm/Analysis/MemorySSAUpdater.h
+++ include/llvm/Analysis/MemorySSAUpdater.h
@@ -70,6 +70,11 @@
 
 public:
   MemorySSAUpdater(MemorySSA *MSSA) : MSSA(MSSA) {}
+  MemorySSAUpdater(MemorySSAUpdater &&MSSAU) : MSSA(MSSAU.MSSA) {}
+  MemorySSAUpdater& operator=(MemorySSAUpdater&& MSSAU) {
+    MSSA = MSSAU.MSSA;
+    return *this;
+  }
   /// Insert a definition into the MemorySSA IR.  RenameUses will rename any use
   /// below the new def block (and any inserted phis).  RenameUses should be set
   /// to true if the definition may cause new aliases for loads below it.  This