Index: llvm/include/llvm/IR/Metadata.h
===================================================================
--- llvm/include/llvm/IR/Metadata.h
+++ llvm/include/llvm/IR/Metadata.h
@@ -775,10 +775,22 @@
 
 public:
   MDOperand() = default;
-  MDOperand(MDOperand &&) = delete;
-  MDOperand(const MDOperand &) = delete;
-  MDOperand &operator=(MDOperand &&) = delete;
-  MDOperand &operator=(const MDOperand &) = delete;
+  MDOperand(const MDOperand &&Op) {
+    MD = Op.MD;
+    track(nullptr);
+  }
+  MDOperand(const MDOperand &Op) {
+    MD = Op.MD;
+    track(nullptr);
+  }
+  MDOperand &operator=(const MDOperand &&Op) {
+    reset(Op.MD, nullptr);
+    return *this;
+  }
+  MDOperand &operator=(const MDOperand &Op) {
+    reset(Op.MD, nullptr);
+    return *this;
+  }
   ~MDOperand() { untrack(); }
 
   Metadata *get() const { return MD; }