diff --git a/clang/include/clang/Sema/AttributeList.h b/clang/include/clang/Sema/AttributeList.h
index 7a84b20af231..95968e21006a 100644
--- a/clang/include/clang/Sema/AttributeList.h
+++ b/clang/include/clang/Sema/AttributeList.h
@@ -557,6 +557,13 @@ public:
   /// Create a new pool for a factory.
   AttributePool(AttributeFactory &factory) : Factory(factory), Head(nullptr) {}
 
+  AttributePool(AttributePool &) = delete;
+
+  /// Move the given pool's allocations to this pool.
+  AttributePool(AttributePool &&pool) : Factory(pool.Factory), Head(pool.Head) {
+    pool.Head = nullptr;
+  }
+
   AttributeFactory &getFactory() const { return Factory; }
 
   void clear() {