diff --git a/src/compiler/node.cc b/src/compiler/node.cc
index f4e7b17..16dc2db 100644
--- a/src/compiler/node.cc
+++ b/src/compiler/node.cc
@@ -296,12 +296,44 @@
   return mask == 3;
 }
 
+bool Node::OwnedByAddressingOperand() const {
+  for (Use* use = first_use_; use; use = use->next) {
+    Node* from = use->from();
+    if (from->opcode() != IrOpcode::kLoad &&
+        // If {from} is store, make sure it does not use {this} as value
+        (from->opcode() != IrOpcode::kStore || from->InputAt(2) == this) &&
+        from->opcode() != IrOpcode::kInt32Add &&
+        from->opcode() != IrOpcode::kInt64Add) {
+      return false;
+    }
+  }
+  return true;
+}
 
 void Node::Print() const {
   OFStream os(stdout);
   os << *this << std::endl;
+  for (Node* input : this->inputs()) {
+    os << "  " << *input << std::endl;
+  }
 }
 
+std::ostream& operator<<(std::ostream& os, const Node& n) {
+  os << n.id() << ": " << *n.op();
+  if (n.InputCount() > 0) {
+    os << "(";
+    for (int i = 0; i < n.InputCount(); ++i) {
+      if (i != 0) os << ", ";
+      if (n.InputAt(i)) {
+        os << n.InputAt(i)->id();
+      } else {
+        os << "null";
+      }
+    }
+    os << ")";
+  }
+  return os;
+}
 
 Node::Node(NodeId id, const Operator* op, int inline_count, int inline_capacity)
     : op_(op),
@@ -378,25 +410,6 @@
 }
 #endif
 
-
-std::ostream& operator<<(std::ostream& os, const Node& n) {
-  os << n.id() << ": " << *n.op();
-  if (n.InputCount() > 0) {
-    os << "(";
-    for (int i = 0; i < n.InputCount(); ++i) {
-      if (i != 0) os << ", ";
-      if (n.InputAt(i)) {
-        os << n.InputAt(i)->id();
-      } else {
-        os << "null";
-      }
-    }
-    os << ")";
-  }
-  return os;
-}
-
-
 Node::InputEdges::iterator Node::InputEdges::iterator::operator++(int n) {
   iterator result(*this);
   ++(*this);
@@ -404,9 +417,6 @@
 }
 
 
-bool Node::InputEdges::empty() const { return begin() == end(); }
-
-
 Node::Inputs::const_iterator Node::Inputs::const_iterator::operator++(int n) {
   const_iterator result(*this);
   ++(*this);
@@ -414,9 +424,6 @@
 }
 
 
-bool Node::Inputs::empty() const { return begin() == end(); }
-
-
 Node::UseEdges::iterator Node::UseEdges::iterator::operator++(int n) {
   iterator result(*this);
   ++(*this);