Additional work to get array literal allocation tracking working, even with --always-opt

src/hydrogen-instructions.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4970 matching lines @@
   int depth_;
 };
 
 
 class HFastLiteral: public HMaterializedLiteral<1> {
  public:
   HFastLiteral(HValue* context,
                Handle<JSObject> boilerplate,
                int total_size,
                int literal_index,
-               int depth)
+               int depth,
+               bool create_allocation_site_info = false)

[danno, 2013/01/10 22:58:59]

Use AllocationSiteInfoMode.

[mvstanton, 2013/01/11 13:43:01]

Done.

       : HMaterializedLiteral<1>(literal_index, depth),
         boilerplate_(boilerplate),
-        total_size_(total_size) {
+        total_size_(total_size),
+        create_allocation_site_info_(create_allocation_site_info) {
     SetOperandAt(0, context);
     SetGVNFlag(kChangesNewSpacePromotion);
   }
 
   // Maximum depth and total number of elements and properties for literal
   // graphs to be considered for fast deep-copying.
   static const int kMaxLiteralDepth = 3;
   static const int kMaxLiteralProperties = 8;
 
   HValue* context() { return OperandAt(0); }
   Handle<JSObject> boilerplate() const { return boilerplate_; }
   int total_size() const { return total_size_; }
-
+  bool create_allocation_site_info() const {
+    return create_allocation_site_info_;
+  }
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
   virtual HType CalculateInferredType();
 
   DECLARE_CONCRETE_INSTRUCTION(FastLiteral)
 
  private:
   Handle<JSObject> boilerplate_;
   int total_size_;
+  bool create_allocation_site_info_;
 };
 
 
 class HArrayLiteral: public HMaterializedLiteral<1> {
  public:
   HArrayLiteral(HValue* context,
                 Handle<HeapObject> boilerplate_object,
                 int length,
                 int literal_index,
                 int depth)
@@ skipping 418 matching lines @@
   virtual bool IsDeletable() const { return true; }
 };
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_