Add optimized compiler support for generic global loads....

src/hydrogen.h

 // Copyright 2010 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 672 matching lines @@
                               HSubgraph* true_graph,
                               HSubgraph* false_graph);
 
   void Push(HValue* value) { environment()->Push(value); }
   HValue* Pop() { return environment()->Pop(); }
   HValue* Top() const { return environment()->Top(); }
   void Drop(int n) { environment()->Drop(n); }
   void Bind(Variable* var, HValue* value) { environment()->Bind(var, value); }
 
   void VisitForValue(Expression* expr);
+  void VisitForTypeofValue(Expression* expr);
   void VisitForEffect(Expression* expr);
   void VisitForControl(Expression* expr,
                        HBasicBlock* true_block,
                        HBasicBlock* false_block,
                        bool invert_true,
                        bool invert_false);
 
   // Visit an expression in a 'condition' context, i.e., in a control
   // context but not a subexpression of logical and, or, or not.
   void VisitCondition(Expression* expr,
@@ skipping 35 matching lines @@
   HSubgraph* CreateGotoSubgraph(HEnvironment* env);
   HSubgraph* CreateBranchSubgraph(HEnvironment* env);
   HSubgraph* CreateLoopHeaderSubgraph(HEnvironment* env);
   HSubgraph* CreateInlinedSubgraph(HEnvironment* outer,
                                    Handle<JSFunction> target,
                                    FunctionLiteral* function);
 
   // Helpers for flow graph construction.
   void LookupGlobalPropertyCell(VariableProxy* expr,
                                 LookupResult* lookup,
-                                bool is_store);
+                                bool is_store,
+                                bool* use_generic);
 
   bool TryArgumentsAccess(Property* expr);
   bool TryCallApply(Call* expr);
   bool TryInline(Call* expr);
   bool TryMathFunctionInline(Call* expr);
   void TraceInline(Handle<JSFunction> target, bool result);
 
   void HandleGlobalVariableAssignment(VariableProxy* proxy,
                                       HValue* value,
                                       int position);
-  void HandleGlobalVariableLoad(VariableProxy* expr);
+  void HandleGlobalVariableLoad(VariableProxy* expr, bool inside_typeof);
   void HandlePropertyAssignment(Assignment* expr);
   void HandleCompoundAssignment(Assignment* expr);
   void HandlePolymorphicLoadNamedField(Property* expr,
                                        HValue* object,
                                        ZoneMapList* types,
                                        Handle<String> name);
   void HandlePolymorphicStoreNamedField(Assignment* expr,
                                         HValue* object,
                                         HValue* value,
                                         ZoneMapList* types,
@@ skipping 282 matching lines @@
   const char* filename_;
   HeapStringAllocator string_allocator_;
   StringStream trace_;
   int indent_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_