diff --git a/llvm/include/llvm/CodeGen/ScheduleDAG.h b/llvm/include/llvm/CodeGen/ScheduleDAG.h
--- a/llvm/include/llvm/CodeGen/ScheduleDAG.h
+++ b/llvm/include/llvm/CodeGen/ScheduleDAG.h
@@ -568,6 +568,15 @@
     bool StressSched;
 #endif
 
+    // This class is designed to be passed by reference only. Copy constructor
+    // is declared as deleted here to make the derived classes have deleted
+    // implicit-declared copy constructor, which suppresses the warnings from
+    // static analyzer when the derived classes own resources that are freed in
+    // their destructors, but don't have user-written copy constructors (rule
+    // of three).
+    ScheduleDAG(const ScheduleDAG &) = delete;
+    ScheduleDAG &operator=(const ScheduleDAG &) = delete;
+
     explicit ScheduleDAG(MachineFunction &mf);
 
     virtual ~ScheduleDAG();