diff --git a/mlir/include/mlir/IR/Block.h b/mlir/include/mlir/IR/Block.h
--- a/mlir/include/mlir/IR/Block.h
+++ b/mlir/include/mlir/IR/Block.h
@@ -18,7 +18,7 @@
 
 namespace mlir {
 /// `Block` represents an ordered list of `Operation`s.
-class Block : public IRObjectWithUseList,
+class Block : public IRObjectWithUseList<BlockOperand>,
               public llvm::ilist_node_with_parent<Block, Region> {
 public:
   explicit Block() {}
diff --git a/mlir/include/mlir/IR/Operation.h b/mlir/include/mlir/IR/Operation.h
--- a/mlir/include/mlir/IR/Operation.h
+++ b/mlir/include/mlir/IR/Operation.h
@@ -237,9 +237,6 @@
   // Results
   //===--------------------------------------------------------------------===//
 
-  /// Return true if there are no users of any results of this operation.
-  bool use_empty();
-
   unsigned getNumResults() { return numResults; }
 
   Value getResult(unsigned idx) { return getOpResult(idx); }
@@ -639,32 +636,6 @@
   return os;
 }
 
-/// This class implements use iterator for the Operation. This iterates over all
-/// uses of all results of an Operation.
-class UseIterator final
-    : public llvm::iterator_facade_base<UseIterator, std::forward_iterator_tag,
-                                        Operation *> {
-public:
-  /// Initialize UseIterator for op, specify end to return iterator to last use.
-  explicit UseIterator(Operation *op, bool end = false);
-
-  UseIterator &operator++();
-  Operation *operator->() { return use->getOwner(); }
-  Operation *operator*() { return use->getOwner(); }
-
-  bool operator==(const UseIterator &other) const;
-  bool operator!=(const UseIterator &other) const;
-
-private:
-  void skipOverResultsWithNoUsers();
-
-  /// The operation whose uses are being iterated over.
-  Operation *op;
-  /// The result of op who's uses are being iterated over.
-  Operation::result_iterator res;
-  /// The use of the result.
-  Value::use_iterator use;
-};
 } // end namespace mlir
 
 namespace llvm {
diff --git a/mlir/include/mlir/IR/UseDefLists.h b/mlir/include/mlir/IR/UseDefLists.h
--- a/mlir/include/mlir/IR/UseDefLists.h
+++ b/mlir/include/mlir/IR/UseDefLists.h
@@ -24,7 +24,8 @@
 class Operation;
 class Value;
 template <typename OperandType> class ValueUseIterator;
-template <typename OperandType> class ValueUserIterator;
+template <typename OperandType> class FilteredValueUseIterator;
+template <typename UseIteratorT, typename OperandType> class ValueUserIterator;
 
 //===----------------------------------------------------------------------===//
 // IRObjectWithUseList
@@ -36,49 +37,145 @@
     assert(use_empty() && "Cannot destroy a value that still has uses!");
   }
 
-  /// Returns true if this value has no uses.
-  bool use_empty() const { return firstUse == nullptr; }
+  /// Drop all uses of this object from their respective owners.
+  void dropAllUses() {
+    while (!use_empty())
+      use_begin()->drop();
+  }
 
-  /// Returns true if this value has exactly one use.
-  inline bool hasOneUse() const;
+  /// Replace all uses of 'this' value with the new value, updating anything in
+  /// the IR that uses 'this' to use the other value instead.  When this returns
+  /// there are zero uses of 'this'.
+  void replaceAllUsesWith(typename OperandType::ValueType newValue) {
+    assert(this != OperandType::getUseList(newValue) &&
+           "cannot RAUW a value with itself");
+    while (!use_empty())
+      use_begin()->set(newValue);
+  }
+
+  //===--------------------------------------------------------------------===//
+  // Uses
+  //===--------------------------------------------------------------------===//
 
-  using use_iterator = ValueUseIterator<IROperand>;
+  using use_iterator = ValueUseIterator<OperandType>;
   using use_range = iterator_range<use_iterator>;
 
-  inline use_iterator use_begin() const;
-  inline use_iterator use_end() const;
+  use_iterator use_begin() const { return use_iterator(firstUse); }
+  use_iterator use_end() const { return use_iterator(nullptr); }
 
   /// Returns a range of all uses, which is useful for iterating over all uses.
-  inline use_range getUses() const;
+  use_range getUses() const { return {use_begin(), use_end()}; }
 
-  using user_iterator = ValueUserIterator<IROperand>;
-  using user_range = iterator_range<user_iterator>;
+  /// Returns true if this value has exactly one use.
+  bool hasOneUse() const {
+    return firstUse && firstUse->getNextOperandUsingThisValue() == nullptr;
+  }
 
-  inline user_iterator user_begin() const;
-  inline user_iterator user_end() const;
+  /// Returns true if this value has no uses.
+  bool use_empty() const { return firstUse == nullptr; }
 
-  /// Returns a range of all users.
-  inline user_range getUsers() const;
+  //===--------------------------------------------------------------------===//
+  // Users
+  //===--------------------------------------------------------------------===//
 
-  /// Replace all uses of 'this' value with the new value, updating anything in
-  /// the IR that uses 'this' to use the other value instead.  When this returns
-  /// there are zero uses of 'this'.
-  void replaceAllUsesWith(IRObjectWithUseList *newValue);
+  using user_iterator = ValueUserIterator<use_iterator, OperandType>;
+  using user_range = iterator_range<user_iterator>;
 
-  /// Drop all uses of this object from their respective owners.
-  void dropAllUses();
+  user_iterator user_begin() const { return user_iterator(use_begin()); }
+  user_iterator user_end() const { return user_iterator(use_end()); }
+
+  /// Returns a range of all users.
+  user_range getUsers() const { return {user_begin(), user_end()}; }
 
 protected:
   IRObjectWithUseList() {}
 
-  /// Return the first IROperand that is using this value, for use by custom
+  /// Return the first operand that is using this value, for use by custom
   /// use/def iterators.
-  IROperand *getFirstUse() { return firstUse; }
-  const IROperand *getFirstUse() const { return firstUse; }
+  OperandType *getFirstUse() const { return firstUse; }
 
 private:
-  friend class IROperand;
-  IROperand *firstUse = nullptr;
+  template <typename DerivedT, typename IRValueTy> friend class IROperand;
+  OperandType *firstUse = nullptr;
+};
+
+//===----------------------------------------------------------------------===//
+// IRMultiObjectWithUseList
+//===----------------------------------------------------------------------===//
+
+/// This class represents multiple IR objects with a single use list. This class
+/// provides wrapper functionality for manipulating the uses of a single object.
+template <typename OperandType>
+class IRMultiObjectWithUseList : public IRObjectWithUseList<OperandType> {
+public:
+  using BaseType = IRObjectWithUseList<OperandType>;
+  using ValueType = typename OperandType::ValueType;
+
+  /// Drop all uses of `value` from their respective owners.
+  void dropAllUses(ValueType value) {
+    assert(this == OperandType::getUseList(value) &&
+           "value not attached to this use list");
+    for (OperandType &use : llvm::make_early_inc_range(getUses(value)))
+      use.drop();
+  }
+  using BaseType::dropAllUses;
+
+  /// Replace all uses of `oldValue` with the new value, updating anything in
+  /// the IR that uses 'this' to use the other value instead.  When this returns
+  /// there are zero uses of 'this'.
+  void replaceAllUsesWith(ValueType oldValue, ValueType newValue) {
+    assert(this == OperandType::getUseList(oldValue) &&
+           "value not attached to this use list");
+    assert(this != OperandType::getUseList(newValue) &&
+           "cannot RAUW a value with itself");
+    for (OperandType &use : llvm::make_early_inc_range(getUses(oldValue)))
+      use.set(newValue);
+  }
+
+  //===--------------------------------------------------------------------===//
+  // Uses
+  //===--------------------------------------------------------------------===//
+
+  using filtered_use_iterator = FilteredValueUseIterator<OperandType>;
+  using filtered_use_range = iterator_range<filtered_use_iterator>;
+
+  filtered_use_iterator use_begin(ValueType value) const {
+    return filtered_use_iterator(this->getFirstUse(), value);
+  }
+  filtered_use_iterator use_end(ValueType) const { return use_end(); }
+  filtered_use_range getUses(ValueType value) const {
+    return {use_begin(value), use_end(value)};
+  }
+  bool hasOneUse(ValueType value) const {
+    return mlir::has_single_element(getUses(value));
+  }
+  bool use_empty(ValueType value) const {
+    return use_begin(value) == use_end(value);
+  }
+  using BaseType::getUses;
+  using BaseType::hasOneUse;
+  using BaseType::use_begin;
+  using BaseType::use_empty;
+  using BaseType::use_end;
+
+  //===--------------------------------------------------------------------===//
+  // Users
+  //===--------------------------------------------------------------------===//
+
+  using filtered_user_iterator =
+      ValueUserIterator<filtered_use_iterator, OperandType>;
+  using filtered_user_range = iterator_range<filtered_user_iterator>;
+
+  filtered_user_iterator user_begin(ValueType value) const {
+    return {use_begin(value)};
+  }
+  filtered_user_iterator user_end(ValueType value) const { return {use_end()}; }
+  filtered_user_range getUsers(ValueType value) const {
+    return {user_begin(value), user_end(value)};
+  }
+  using BaseType::getUsers;
+  using BaseType::user_begin;
+  using BaseType::user_end;
 };
 
 //===----------------------------------------------------------------------===//
@@ -86,19 +183,24 @@
 //===----------------------------------------------------------------------===//
 
 /// A reference to a value, suitable for use as an operand of an operation.
-class IROperand {
+/// IRValueTy is the root type to use for values this tracks. Derived operand
+/// types are expected to provide the following:
+///  * static IRObjectWithUseList *getUseList(IRValueTy value);
+///    - Provide the use list that is attached to the given value.
+template <typename DerivedT, typename IRValueTy> class IROperand {
 public:
+  using ValueType = IRValueTy;
+
   IROperand(Operation *owner) : owner(owner) {}
-  IROperand(Operation *owner, IRObjectWithUseList *value)
-      : value(value), owner(owner) {
+  IROperand(Operation *owner, ValueType value) : value(value), owner(owner) {
     insertIntoCurrent();
   }
 
   /// Return the current value being used by this operand.
-  IRObjectWithUseList *get() const { return value; }
+  ValueType get() const { return value; }
 
   /// Set the current value being used by this operand.
-  void set(IRObjectWithUseList *newValue) {
+  void set(ValueType newValue) {
     // It isn't worth optimizing for the case of switching operands on a single
     // value.
     removeFromCurrent();
@@ -123,7 +225,7 @@
   /// Return the next operand on the use-list of the value we are referring to.
   /// This should generally only be used by the internal implementation details
   /// of the SSA machinery.
-  IROperand *getNextOperandUsingThisValue() { return nextUse; }
+  DerivedT *getNextOperandUsingThisValue() { return nextUse; }
 
   /// We support a move constructor so IROperand's can be in vectors, but this
   /// shouldn't be used by general clients.
@@ -143,15 +245,15 @@
   }
 
 private:
-  /// The value used as this operand.  This can be null when in a
-  /// "dropAllUses" state.
-  IRObjectWithUseList *value = nullptr;
+  /// The value used as this operand. This can be null when in a 'dropAllUses'
+  /// state.
+  ValueType value = {};
 
   /// The next operand in the use-chain.
-  IROperand *nextUse = nullptr;
+  DerivedT *nextUse = nullptr;
 
   /// This points to the previous link in the use-chain.
-  IROperand **back = nullptr;
+  DerivedT **back = nullptr;
 
   /// The operation owner of this operand.
   Operation *const owner;
@@ -169,11 +271,12 @@
   }
 
   void insertIntoCurrent() {
-    back = &value->firstUse;
-    nextUse = value->firstUse;
+    auto *useList = DerivedT::getUseList(value);
+    back = &useList->firstUse;
+    nextUse = useList->firstUse;
     if (nextUse)
       nextUse->back = &nextUse;
-    value->firstUse = this;
+    useList->firstUse = static_cast<DerivedT *>(this);
   }
 };
 
@@ -232,62 +335,96 @@
 class ValueUseIterator
     : public std::iterator<std::forward_iterator_tag, OperandType> {
 public:
-  ValueUseIterator() = default;
-  explicit ValueUseIterator(OperandType *current) : current(current) {}
-  OperandType *operator->() const { return current; }
-  OperandType &operator*() const { return *current; }
+  template <typename T>
+  ValueUseIteratorImpl(const ValueUseIteratorImpl<T, OperandType> &other)
+      : current(other.getOperand()) {}
+  ValueUseIteratorImpl(OperandType *current = nullptr) : current(current) {}
 
   Operation *getUser() const { return current->getOwner(); }
+  OperandType *getOperand() const { return current; }
+
+  OperandType &operator*() const { return *current; }
 
-  ValueUseIterator &operator++() {
+  using llvm::iterator_facade_base<DerivedT, std::forward_iterator_tag,
+                                   OperandType>::operator++;
+  ValueUseIteratorImpl &operator++() {
     assert(current && "incrementing past end()!");
     current = (OperandType *)current->getNextOperandUsingThisValue();
     return *this;
   }
 
-  ValueUseIterator operator++(int unused) {
-    ValueUseIterator copy = *this;
-    ++*this;
-    return copy;
+  bool operator==(const ValueUseIteratorImpl &rhs) const {
+    return current == rhs.current;
   }
 
-  friend bool operator==(ValueUseIterator lhs, ValueUseIterator rhs) {
-    return lhs.current == rhs.current;
-  }
+protected:
+  OperandType *current;
+};
 
-  friend bool operator!=(ValueUseIterator lhs, ValueUseIterator rhs) {
-    return !(lhs == rhs);
-  }
+} // end namespace detail
 
-private:
-  OperandType *current;
+/// An iterator over all of the uses of an IR object.
+template <typename OperandType>
+class ValueUseIterator
+    : public detail::ValueUseIteratorImpl<ValueUseIterator<OperandType>,
+                                          OperandType> {
+public:
+  using detail::ValueUseIteratorImpl<ValueUseIterator<OperandType>,
+                                     OperandType>::ValueUseIteratorImpl;
 };
 
-inline auto IRObjectWithUseList::use_begin() const -> use_iterator {
-  return use_iterator(firstUse);
-}
+/// This class represents an iterator of the uses of a IR object that optionally
+/// filters on a specific sub-value. This allows for filtering the uses of an
+/// IRMultiObjectWithUseList.
+template <typename OperandType>
+class FilteredValueUseIterator
+    : public detail::ValueUseIteratorImpl<FilteredValueUseIterator<OperandType>,
+                                          OperandType> {
+public:
+  using BaseT =
+      detail::ValueUseIteratorImpl<FilteredValueUseIterator<OperandType>,
+                                   OperandType>;
+
+  FilteredValueUseIterator() = default;
+  FilteredValueUseIterator(const ValueUseIterator<OperandType> &it)
+      : BaseT(it), filterVal(nullptr) {}
+  FilteredValueUseIterator(OperandType *current,
+                           typename OperandType::ValueType filterVal)
+      : BaseT(current), filterVal(filterVal) {
+    findNextValid();
+  }
 
-inline auto IRObjectWithUseList::use_end() const -> use_iterator {
-  return use_iterator(nullptr);
-}
+  using BaseT::operator++;
+  FilteredValueUseIterator<OperandType> &operator++() {
+    BaseT::operator++();
+    findNextValid();
+    return *this;
+  }
+
+private:
+  void findNextValid() {
+    if (!filterVal)
+      return;
+    while (this->current && ((OperandType *)this->current)->get() != filterVal)
+      BaseT::operator++();
+  }
 
-inline auto IRObjectWithUseList::getUses() const -> use_range {
-  return {use_begin(), use_end()};
-}
+  /// An optional value to use to filter specific uses.
+  typename OperandType::ValueType filterVal;
+};
 
-/// Returns true if this value has exactly one use.
-inline bool IRObjectWithUseList::hasOneUse() const {
-  return firstUse && firstUse->getNextOperandUsingThisValue() == nullptr;
-}
+//===----------------------------------------------------------------------===//
+// ValueUserIterator
+//===----------------------------------------------------------------------===//
 
 //===----------------------------------------------------------------------===//
 // ValueUserIterator
 //===----------------------------------------------------------------------===//
 
 /// An iterator over all users of a ValueBase.
-template <typename OperandType>
+template <typename UseIteratorT, typename OperandType>
 class ValueUserIterator final
-    : public llvm::mapped_iterator<ValueUseIterator<OperandType>,
+    : public llvm::mapped_iterator<UseIteratorT,
                                    Operation *(*)(OperandType &)> {
   static Operation *unwrap(OperandType &value) { return value.getOwner(); }
 
@@ -296,24 +433,12 @@
   using reference = Operation *;
 
   /// Initializes the result type iterator to the specified result iterator.
-  ValueUserIterator(ValueUseIterator<OperandType> it)
-      : llvm::mapped_iterator<ValueUseIterator<OperandType>,
-                              Operation *(*)(OperandType &)>(it, &unwrap) {}
+  ValueUserIterator(UseIteratorT it)
+      : llvm::mapped_iterator<UseIteratorT, Operation *(*)(OperandType &)>(
+            it, &unwrap) {}
   Operation *operator->() { return **this; }
 };
 
-inline auto IRObjectWithUseList::user_begin() const -> user_iterator {
-  return user_iterator(use_begin());
-}
-
-inline auto IRObjectWithUseList::user_end() const -> user_iterator {
-  return user_iterator(use_end());
-}
-
-inline auto IRObjectWithUseList::getUsers() const -> user_range {
-  return {user_begin(), user_end()};
-}
-
 } // namespace mlir
 
 #endif
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
@@ -27,7 +27,7 @@
 
 namespace detail {
 /// The internal implementation of a Value.
-class ValueImpl : public IRObjectWithUseList {
+class ValueImpl {
 protected:
   /// This enumerates all of the SSA value kinds.
   enum class Kind {
@@ -46,7 +46,8 @@
 };
 
 /// The internal implementation of a BlockArgument.
-class BlockArgumentImpl : public ValueImpl {
+class BlockArgumentImpl : public ValueImpl,
+                          public IRObjectWithUseList<OpOperand> {
   BlockArgumentImpl(Type type, Block *owner)
       : ValueImpl(Kind::BlockArgument, type), owner(owner) {}
 
@@ -132,13 +133,6 @@
   /// place.
   void setType(Type newType) { impl->typeAndKind.setPointer(newType); }
 
-  /// Replace all uses of 'this' value with the new value, updating anything in
-  /// the IR that uses 'this' to use the other value instead.  When this returns
-  /// there are zero uses of 'this'.
-  void replaceAllUsesWith(Value newValue) const {
-    impl->replaceAllUsesWith(newValue.impl);
-  }
-
   /// If this value is the result of an operation, return the operation that
   /// defines it.
   Operation *getDefiningOp() const;
@@ -150,32 +144,52 @@
   /// Return the Region in which this Value is defined.
   Region *getParentRegion();
 
-  using use_iterator = ValueUseIterator<OpOperand>;
+  //===--------------------------------------------------------------------===//
+  // UseLists
+  //===--------------------------------------------------------------------===//
+
+  /// Provide the use list that is attached to this value.
+  IRObjectWithUseList<OpOperand> *getUseList() const;
+
+  /// Drop all uses of this object from their respective owners.
+  void dropAllUses() const;
+
+  /// Replace all uses of 'this' value with the new value, updating anything in
+  /// the IR that uses 'this' to use the other value instead.  When this returns
+  /// there are zero uses of 'this'.
+  void replaceAllUsesWith(Value newValue) const;
+
+  //===--------------------------------------------------------------------===//
+  // Uses
+
+  /// This class implements an iterator over the uses of a value.
+  using use_iterator = FilteredValueUseIterator<OpOperand>;
   using use_range = iterator_range<use_iterator>;
 
-  inline use_iterator use_begin();
-  inline use_iterator use_end();
+  use_iterator use_begin() const;
+  use_iterator use_end() const { return use_iterator(); }
 
   /// Returns a range of all uses, which is useful for iterating over all uses.
-  inline use_range getUses();
+  use_range getUses() const { return {use_begin(), use_end()}; }
 
-  using user_iterator = ValueUserIterator<IROperand>;
-  using user_range = iterator_range<user_iterator>;
+  /// Returns true if this value has exactly one use.
+  bool hasOneUse() const;
 
-  user_iterator user_begin() const { return impl->user_begin(); }
-  user_iterator user_end() const { return impl->user_end(); }
+  /// Returns true if this value has no uses.
+  bool use_empty() const;
 
-  /// Returns a range of all users.
-  user_range getUsers() const { return impl->getUsers(); }
+  //===--------------------------------------------------------------------===//
+  // Users
 
-  /// Returns true if this value has no uses.
-  bool use_empty() const { return impl->use_empty(); }
+  using user_iterator = ValueUserIterator<use_iterator, OpOperand>;
+  using user_range = iterator_range<user_iterator>;
 
-  /// Returns true if this value has exactly one use.
-  bool hasOneUse() const { return impl->hasOneUse(); }
+  user_iterator user_begin() const { return use_begin(); }
+  user_iterator user_end() const { return use_end(); }
+  user_range getUsers() const { return {user_begin(), user_end()}; }
 
-  /// Drop all uses of this object from their respective owners.
-  void dropAllUses() const { impl->dropAllUses(); }
+  //===--------------------------------------------------------------------===//
+  // Utilities
 
   void print(raw_ostream &os);
   void dump();
@@ -201,17 +215,6 @@
   return os;
 }
 
-// Utility functions for iterating through Value uses.
-inline auto Value::use_begin() -> use_iterator {
-  return use_iterator((OpOperand *)impl->getFirstUse());
-}
-
-inline auto Value::use_end() -> use_iterator { return use_iterator(nullptr); }
-
-inline auto Value::getUses() -> iterator_range<use_iterator> {
-  return {use_begin(), use_end()};
-}
-
 /// Block arguments are values.
 class BlockArgument : public Value {
 public:
@@ -248,6 +251,9 @@
 
   /// Allow access to `create` and `destroy`.
   friend Block;
+
+  /// Allow access to 'getImpl'.
+  friend Value;
 };
 
 /// This is a value defined by a result of an operation.
diff --git a/mlir/lib/IR/Operation.cpp b/mlir/lib/IR/Operation.cpp
--- a/mlir/lib/IR/Operation.cpp
+++ b/mlir/lib/IR/Operation.cpp
@@ -533,22 +533,13 @@
 /// This drops all uses of any values defined by this operation or its nested
 /// regions, wherever they are located.
 void Operation::dropAllDefinedValueUses() {
-  for (auto &val : getOpResults())
-    val.dropAllUses();
+  dropAllUses();
 
   for (auto &region : getRegions())
     for (auto &block : region)
       block.dropAllDefinedValueUses();
 }
 
-/// Return true if there are no users of any results of this operation.
-bool Operation::use_empty() {
-  for (auto result : getResults())
-    if (!result->use_empty())
-      return false;
-  return true;
-}
-
 void Operation::setSuccessor(Block *block, unsigned index) {
   assert(index < getNumSuccessors());
   getBlockOperands()[index].set(block);
@@ -1144,50 +1135,3 @@
 
   block.push_back(buildTerminatorOp());
 }
-
-//===----------------------------------------------------------------------===//
-// UseIterator
-//===----------------------------------------------------------------------===//
-
-UseIterator::UseIterator(Operation *op, bool end)
-    : op(op), res(end ? op->result_end() : op->result_begin()) {
-  // Only initialize current use if there are results/can be uses.
-  if (op->getNumResults())
-    skipOverResultsWithNoUsers();
-}
-
-UseIterator &UseIterator::operator++() {
-  // We increment over uses, if we reach the last use then move to next
-  // result.
-  if (use != (*res)->use_end())
-    ++use;
-  if (use == (*res)->use_end()) {
-    ++res;
-    skipOverResultsWithNoUsers();
-  }
-  return *this;
-}
-
-bool UseIterator::operator==(const UseIterator &other) const {
-  if (op != other.op)
-    return false;
-  if (op->getNumResults() == 0)
-    return true;
-  return res == other.res && use == other.use;
-}
-
-bool UseIterator::operator!=(const UseIterator &other) const {
-  return !(*this == other);
-}
-
-void UseIterator::skipOverResultsWithNoUsers() {
-  while (res != op->result_end() && (*res)->use_empty())
-    ++res;
-
-  // If we are at the last result, then set use to first use of
-  // first result (sentinel value used for end).
-  if (res == op->result_end())
-    use = {};
-  else
-    use = (*res)->use_begin();
-}
diff --git a/mlir/lib/IR/Value.cpp b/mlir/lib/IR/Value.cpp
--- a/mlir/lib/IR/Value.cpp
+++ b/mlir/lib/IR/Value.cpp
@@ -69,19 +69,95 @@
 // IRObjectWithUseList implementation.
 //===----------------------------------------------------------------------===//
 
+/// Provide the use list that is attached to this value.
+IRObjectWithUseList<OpOperand> *Value::getUseList() const {
+  if (BlockArgument arg = dyn_cast<BlockArgument>())
+    return arg.getImpl();
+  return cast<OpResult>().getOwner();
+}
+
+/// Drop all uses of this object from their respective owners.
+void Value::dropAllUses() const {
+  if (BlockArgument arg = dyn_cast<BlockArgument>())
+    return arg.getImpl()->dropAllUses();
+  return cast<OpResult>().getOwner()->dropAllUses(*this);
+}
+
 /// Replace all uses of 'this' value with the new value, updating anything in
 /// the IR that uses 'this' to use the other value instead.  When this returns
 /// there are zero uses of 'this'.
-void IRObjectWithUseList::replaceAllUsesWith(IRObjectWithUseList *newValue) {
-  assert(this != newValue && "cannot RAUW a value with itself");
-  while (!use_empty()) {
-    use_begin()->set(newValue);
-  }
+void Value::replaceAllUsesWith(Value newValue) const {
+  if (BlockArgument arg = dyn_cast<BlockArgument>())
+    return arg.getImpl()->replaceAllUsesWith(newValue);
+  IRMultiObjectWithUseList<OpOperand> *useList = cast<OpResult>().getOwner();
+  useList->replaceAllUsesWith(*this, newValue);
 }
 
-/// Drop all uses of this object from their respective owners.
-void IRObjectWithUseList::dropAllUses() {
-  while (!use_empty()) {
-    use_begin()->drop();
-  }
+//===--------------------------------------------------------------------===//
+// Uses
+
+auto Value::use_begin() const -> use_iterator {
+  if (BlockArgument arg = dyn_cast<BlockArgument>())
+    return arg.getImpl()->use_begin();
+  return cast<OpResult>().getOwner()->use_begin(*this);
+}
+
+/// Returns true if this value has exactly one use.
+bool Value::hasOneUse() const {
+  if (BlockArgument arg = dyn_cast<BlockArgument>())
+    return arg.getImpl()->hasOneUse();
+  return cast<OpResult>().getOwner()->hasOneUse(*this);
+}
+
+/// Returns true if this value has no uses.
+bool Value::use_empty() const {
+  if (BlockArgument arg = dyn_cast<BlockArgument>())
+    return arg.getImpl()->use_empty();
+  return cast<OpResult>().getOwner()->use_empty(*this);
+}
+
+//===----------------------------------------------------------------------===//
+// BlockOperand
+//===----------------------------------------------------------------------===//
+
+/// Provide the use list that is attached to the given block.
+IRObjectWithUseList<BlockOperand> *BlockOperand::getUseList(Block *value) {
+  return value;
+}
+
+/// Return which operand this is in the operand list.
+unsigned BlockOperand::getOperandNumber() {
+  return this - &getOwner()->getBlockOperands()[0];
+}
+
+//===----------------------------------------------------------------------===//
+// OpOperand
+//===----------------------------------------------------------------------===//
+
+/// Provide the use list that is attached to the given value.
+IRObjectWithUseList<OpOperand> *OpOperand::getUseList(Value value) {
+  return value.getUseList();
+}
+
+/// Return the current value being used by this operand.
+Value OpOperand::get() const {
+  return IROperand<OpOperand, detail::OpaqueValue>::get();
+}
+
+/// Return which operand this is in the operand list.
+unsigned OpOperand::getOperandNumber() {
+  return this - &getOwner()->getOpOperands()[0];
+}
+
+//===----------------------------------------------------------------------===//
+// detail::OpaqueValue
+//===----------------------------------------------------------------------===//
+
+/// Implicit conversion from 'Value'.
+detail::OpaqueValue::OpaqueValue(Value value)
+    : impl(value.getAsOpaquePointer()) {}
+
+/// Implicit conversion back to 'Value'.
+detail::OpaqueValue::operator Value() const {
+  return Value::getFromOpaquePointer(impl);
 }
diff --git a/mlir/lib/Transforms/ViewOpGraph.cpp b/mlir/lib/Transforms/ViewOpGraph.cpp
--- a/mlir/lib/Transforms/ViewOpGraph.cpp
+++ b/mlir/lib/Transforms/ViewOpGraph.cpp
@@ -29,13 +29,9 @@
   using GraphType = Block *;
   using NodeRef = Operation *;
 
-  using ChildIteratorType = UseIterator;
-  static ChildIteratorType child_begin(NodeRef n) {
-    return ChildIteratorType(n);
-  }
-  static ChildIteratorType child_end(NodeRef n) {
-    return ChildIteratorType(n, /*end=*/true);
-  }
+  using ChildIteratorType = Operation::user_iterator;
+  static ChildIteratorType child_begin(NodeRef n) { return n->user_begin(); }
+  static ChildIteratorType child_end(NodeRef n) { return n->user_end(); }
 
   // Operation's destructor is private so use Operation* instead and use
   // mapped iterator.