[turbofan]: Integrate basic type feedback for property accesses.

src/compiler/node-properties.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_H_
 #define V8_COMPILER_NODE_PROPERTIES_H_
 
 #include "src/compiler/node.h"
 #include "src/types.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
+class Graph;
 class Operator;
+class CommonOperatorBuilder;
 
 // A facade that simplifies access to the different kinds of inputs to a node.
 class NodeProperties FINAL {
  public:
   // ---------------------------------------------------------------------------
   // Input layout.
   // Inputs are always arranged in order as follows:
   //     0 [ values, context, frame state, effects, control ] node->InputCount()
 
   static int FirstValueIndex(Node* node) { return 0; }
@@ skipping 47 matching lines @@
 
   // ---------------------------------------------------------------------------
   // Miscellaneous mutators.
 
   static void ReplaceContextInput(Node* node, Node* context);
   static void ReplaceControlInput(Node* node, Node* control);
   static void ReplaceEffectInput(Node* node, Node* effect, int index = 0);
   static void ReplaceFrameStateInput(Node* node, int index, Node* frame_state);
   static void RemoveNonValueInputs(Node* node);
 
+  static void MergeControlToEnd(Graph* graph, CommonOperatorBuilder* common,

[Michael Starzinger, 2015/03/24 09:06:40]

Can we get a short comment explaining the intent of this method?

[titzer, 2015/03/24 10:49:32]

Done.

+                                Node* node);
+
   // Replace value uses of {node} with {value} and effect uses of {node} with
   // {effect}. If {effect == NULL}, then use the effect input to {node}. All
   // control uses will be relaxed assuming {node} cannot throw.
   static void ReplaceWithValue(Node* node, Node* value, Node* effect = nullptr,
                                Node* control = nullptr);
 
   // ---------------------------------------------------------------------------
   // Miscellaneous utilities.
 
   static Node* FindProjection(Node* node, size_t projection_index);
@@ skipping 28 matching lines @@
 
  private:
   static inline bool IsInputRange(Edge edge, int first, int count);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_NODE_PROPERTIES_H_