Implement simple fast-path code for functions containing this property stores and global variables.

src/full-codegen.cc

 // Copyright 2009 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 444 matching lines @@
                                          Handle<Script> script,
                                          bool is_eval) {
   if (!script->IsUndefined() && !script->source()->IsUndefined()) {
     int len = String::cast(script->source())->length();
     Counters::total_full_codegen_source_size.Increment(len);
   }
   CodeGenerator::MakeCodePrologue(fun);
   const int kInitialBufferSize = 4 * KB;
   MacroAssembler masm(NULL, kInitialBufferSize);
   FullCodeGenerator cgen(&masm, script, is_eval);
-  cgen.Generate(fun);
+  cgen.Generate(fun, PRIMARY);
   if (cgen.HasStackOverflow()) {
     ASSERT(!Top::has_pending_exception());
     return Handle<Code>::null();
   }
   Code::Flags flags = Code::ComputeFlags(Code::FUNCTION, NOT_IN_LOOP);
   return CodeGenerator::MakeCodeEpilogue(fun, &masm, flags, script);
 }
 
 
 int FullCodeGenerator::SlotOffset(Slot* slot) {
@@ skipping 678 matching lines @@
 }
 
 
 int FullCodeGenerator::TryCatch::Exit(int stack_depth) {
   // The macros used here must preserve the result register.
   __ Drop(stack_depth);
   __ PopTryHandler();
   return 0;
 }
 
-
 #undef __
 
 
 } }  // namespace v8::internal