diff --git a/clang/include/clang/AST/APValue.h b/clang/include/clang/AST/APValue.h
--- a/clang/include/clang/AST/APValue.h
+++ b/clang/include/clang/AST/APValue.h
@@ -270,12 +270,16 @@
     APValue *Elts = nullptr;
     unsigned NumElts = 0;
     Vec() = default;
+    Vec(const Vec &) = delete;
+    Vec &operator=(const Vec &) = delete;
     ~Vec() { delete[] Elts; }
   };
   struct Arr {
     APValue *Elts;
     unsigned NumElts, ArrSize;
     Arr(unsigned NumElts, unsigned ArrSize);
+    Arr(const Arr &) = delete;
+    Arr &operator=(const Arr &) = delete;
     ~Arr();
   };
   struct StructData {
@@ -283,12 +287,16 @@
     unsigned NumBases;
     unsigned NumFields;
     StructData(unsigned NumBases, unsigned NumFields);
+    StructData(const StructData &) = delete;
+    StructData &operator=(const StructData &) = delete;
     ~StructData();
   };
   struct UnionData {
     const FieldDecl *Field;
     APValue *Value;
     UnionData();
+    UnionData(const UnionData &) = delete;
+    UnionData &operator=(const UnionData &) = delete;
     ~UnionData();
   };
   struct AddrLabelDiffData {