Reland "Add initial support for inlining."

src/compiler/node-properties-inl.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_NODE_PROPERTIES_INL_H_
 #define V8_COMPILER_NODE_PROPERTIES_INL_H_
 
 #include "src/v8.h"
 
 #include "src/compiler/common-operator.h"
@@ skipping 130 matching lines @@
                                                int index) {
   DCHECK(index < OperatorProperties::GetEffectInputCount(node->op()));
   return node->ReplaceInput(FirstEffectIndex(node) + index, effect);
 }
 
 inline void NodeProperties::RemoveNonValueInputs(Node* node) {
   node->TrimInputCount(OperatorProperties::GetValueInputCount(node->op()));
 }
 
 
+// Replace value uses of {node} with {value} and effect uses of {node} with
+// {effect}. If {effect == NULL}, then use the effect input to {node}.
+inline void NodeProperties::ReplaceWithValue(Node* node, Node* value,
+                                             Node* effect) {
+  DCHECK(!OperatorProperties::HasControlOutput(node->op()));
+  if (effect == NULL && OperatorProperties::HasEffectInput(node->op())) {
+    effect = NodeProperties::GetEffectInput(node);
+  }
+
+  // Requires distinguishing between value and effect edges.
+  UseIter iter = node->uses().begin();
+  while (iter != node->uses().end()) {
+    if (NodeProperties::IsEffectEdge(iter.edge())) {
+      DCHECK_NE(NULL, effect);
+      iter = iter.UpdateToAndIncrement(effect);
+    } else {
+      iter = iter.UpdateToAndIncrement(value);
+    }
+  }
+}
+
+
 // -----------------------------------------------------------------------------
 // Type Bounds.
 
 inline Bounds NodeProperties::GetBounds(Node* node) { return node->bounds(); }
 
 inline void NodeProperties::SetBounds(Node* node, Bounds b) {
   node->set_bounds(b);
 }
 
 
 }
 }
 }  // namespace v8::internal::compiler
 
 #endif  // V8_COMPILER_NODE_PROPERTIES_INL_H_