Teach TurboFan to call vector-based ICs.

src/type-feedback-vector.h

Index: src/type-feedback-vector.h
diff --git a/src/type-feedback-vector.h b/src/type-feedback-vector.h
index b6fadba73ea0623ea62ee852f15eda9af3394207..18b1c1974b616501edaf349d1e2a91b60fb054ae 100644
--- a/src/type-feedback-vector.h
+++ b/src/type-feedback-vector.h
@@ -49,6 +49,42 @@ class TypeFeedbackVector : public FixedArray {
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(TypeFeedbackVector);
 };
+
+// A FeedbackNode is the combination of a TypeFeedbackVector and a slot.
+// Derived classes customize the update and retrieval of feedback.
+class FeedbackNode {
+ public:
+  FeedbackNode(Handle<TypeFeedbackVector> vector, int slot)
+      : vector_(vector), slot_(slot) {}
+  virtual ~FeedbackNode() {}
+
+  Handle<TypeFeedbackVector> vector() const { return vector_; }
+  int slot() const { return slot_; }
+
+ private:
+  Handle<TypeFeedbackVector> vector_;
+  int slot_;
+};
+
+
+bool operator==(FeedbackNode const&, FeedbackNode const&);
+bool operator!=(FeedbackNode const&, FeedbackNode const&);
+
+size_t hash_value(FeedbackNode const&);
+
+
+class LoadICFeedbackNode : public FeedbackNode {
+ public:
+  LoadICFeedbackNode(Handle<TypeFeedbackVector> vector, int slot)
+      : FeedbackNode(vector, slot) {}
+};
+
+
+class KeyedLoadICFeedbackNode : public FeedbackNode {
+ public:
+  KeyedLoadICFeedbackNode(Handle<TypeFeedbackVector> vector, int slot)
+      : FeedbackNode(vector, slot) {}
+};
 }
 }  // namespace v8::internal