diff --git a/llvm/include/llvm/iMemory.h b/llvm/include/llvm/iMemory.h
index ec04b281dbc6e3b861dece8364e9db271eded5a9..7d919196deaf3285e5cd6d72e69a0fdb401ea2d6 100644
--- a/llvm/include/llvm/iMemory.h
+++ b/llvm/include/llvm/iMemory.h
@@ -58,6 +58,16 @@ public:
   }
 
   virtual Instruction *clone() const = 0;
+
+  // Methods for support type inquiry through isa, cast, and dyn_cast:
+  static inline bool classof(const AllocationInst *) { return true; }
+  static inline bool classof(const Instruction *I) {
+    return I->getOpcode() == Instruction::Alloca ||
+           I->getOpcode() == Instruction::Malloc;
+  }
+  static inline bool classof(const Value *V) {
+    return isa<Instruction>(V) && classof(cast<Instruction>(V));
+  }
 };