Fast compiler: Load globals variables directly from property cells....

src/data-flow.cc

 // 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 145 matching lines @@
 }
 
 
 void AstLabeler::VisitSlot(Slot* expr) {
   UNREACHABLE();
 }
 
 
 void AstLabeler::VisitVariableProxy(VariableProxy* expr) {
   expr->set_num(next_number_++);
+  Variable* var = expr->var();
+  if (var->is_global() && !var->is_this()) {
+    info_->set_has_globals(true);
+  }
 }
 
 
 void AstLabeler::VisitLiteral(Literal* expr) {
   UNREACHABLE();
 }
 
 
 void AstLabeler::VisitRegExpLiteral(RegExpLiteral* expr) {
   UNREACHABLE();
@@ skipping 83 matching lines @@
 void AstLabeler::VisitThisFunction(ThisFunction* expr) {
   UNREACHABLE();
 }
 
 
 void AstLabeler::VisitDeclaration(Declaration* decl) {
   UNREACHABLE();
 }
 
 } }  // namespace v8::internal