Speedup global_proxy.* attributes/accessors (specialize GlobalProxy access).

src/crankshaft/hydrogen.h

 // Copyright 2012 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_CRANKSHAFT_HYDROGEN_H_
 #define V8_CRANKSHAFT_HYDROGEN_H_
 
 #include "src/accessors.h"
 #include "src/allocation.h"
 #include "src/ast/ast-type-bounds.h"
@@ skipping 2342 matching lines @@
   void PushArgumentsFromEnvironment(int count);
 
   void SetUpScope(DeclarationScope* scope);
   void VisitStatements(ZoneList<Statement*>* statements);
 
 #define DECLARE_VISIT(type) virtual void Visit##type(type* node);
   AST_NODE_LIST(DECLARE_VISIT)
 #undef DECLARE_VISIT
 
  private:
-  // Helpers for flow graph construction.
-  enum GlobalPropertyAccess {
-    kUseCell,
-    kUseGeneric
-  };
-  GlobalPropertyAccess LookupGlobalProperty(Variable* var, LookupIterator* it,
-                                            PropertyAccessType access_type);
+  bool LookupGlobalPropertyCell(Variable* var, LookupIterator* it,
+                                PropertyAccessType access_type);
+
+  bool LookupGlobalPropertyCell(LookupIterator* it,
+                                PropertyAccessType access_type);
+
+  void LoadFromCell(LookupIterator* it, BailoutId ast_id);
 
   void EnsureArgumentsArePushedForAccess();
   bool TryArgumentsAccess(Property* expr);
 
   // Shared code for .call and .apply optimizations.
   void HandleIndirectCall(Call* expr, HValue* function, int arguments_count);
   // Try to optimize indirect calls such as fun.apply(receiver, arguments)
   // or fun.call(...).
   bool TryIndirectCall(Call* expr);
   void BuildFunctionApply(Call* expr);
@@ skipping 653 matching lines @@
   }
 
  private:
   HOptimizedGraphBuilder* builder_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CRANKSHAFT_HYDROGEN_H_