diff --git a/mlir/include/mlir/IR/Value.h b/mlir/include/mlir/IR/Value.h
--- a/mlir/include/mlir/IR/Value.h
+++ b/mlir/include/mlir/IR/Value.h
@@ -529,6 +529,18 @@
     return reinterpret_cast<mlir::detail::OpResultImpl *>(pointer);
   }
 };
+template <typename T>
+struct DenseMapInfo<mlir::detail::TypedValue<T>>
+    : public DenseMapInfo<mlir::Value> {
+  static mlir::detail::TypedValue<T> getEmptyKey() {
+    void *pointer = llvm::DenseMapInfo<void *>::getEmptyKey();
+    return mlir::Value::getFromOpaquePointer(pointer);
+  }
+  static mlir::detail::TypedValue<T> getTombstoneKey() {
+    void *pointer = llvm::DenseMapInfo<void *>::getTombstoneKey();
+    return mlir::Value::getFromOpaquePointer(pointer);
+  }
+};
 
 /// Allow stealing the low bits of a value.
 template <>
@@ -561,6 +573,14 @@
     return reinterpret_cast<mlir::detail::OpResultImpl *>(pointer);
   }
 };
+template <typename T>
+struct PointerLikeTypeTraits<mlir::detail::TypedValue<T>>
+    : public PointerLikeTypeTraits<mlir::Value> {
+public:
+  static inline mlir::detail::TypedValue<T> getFromVoidPointer(void *pointer) {
+    return mlir::Value::getFromOpaquePointer(pointer);
+  }
+};
 
 /// Add support for llvm style casts. We provide a cast between To and From if
 /// From is mlir::Value or derives from it.