Turn Load/StoreGlobal into a handler.

src/x64/stub-cache-x64.cc

 // 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 3048 matching lines @@
 Handle<Code> LoadStubCompiler::CompileLoadGlobal(
     Handle<JSObject> object,
     Handle<GlobalObject> global,
     Handle<PropertyCell> cell,
     Handle<Name> name,
     bool is_dont_delete) {
   Label success, miss;
   // TODO(verwaest): Directly store to rax. Currently we cannot do this, since
   // rax is used as receiver(), which we would otherwise clobber before a
   // potential miss.
-
-  __ CheckMap(receiver(), Handle<Map>(object->map()), &miss, DO_SMI_CHECK);
-  HandlerFrontendHeader(
-      object, receiver(), Handle<JSObject>::cast(global), name, &miss);
+  HandlerFrontendHeader(object, receiver(), global, name, &miss);
 
   // Get the value from the cell.
   __ Move(rbx, cell);
   __ movq(rbx, FieldOperand(rbx, PropertyCell::kValueOffset));
 
   // Check for deleted property if property can actually be deleted.
   if (!is_dont_delete) {
     __ CompareRoot(rbx, Heap::kTheHoleValueRootIndex);
     __ j(equal, &miss);
   } else if (FLAG_debug_code) {
     __ CompareRoot(rbx, Heap::kTheHoleValueRootIndex);
     __ Check(not_equal, kDontDeleteCellsCannotContainTheHole);
   }
 
   HandlerFrontendFooter(name, &success, &miss);
   __ bind(&success);
 
   Counters* counters = isolate()->counters();
   __ IncrementCounter(counters->named_load_global_stub(), 1);
   __ movq(rax, rbx);
   __ ret(0);
 
   // Return the generated code.
-  return GetICCode(kind(), Code::NORMAL, name);
+  return GetCode(kind(), Code::NORMAL, name);
 }
 
 
 Handle<Code> BaseLoadStoreStubCompiler::CompilePolymorphicIC(
     MapHandleList* receiver_maps,
     CodeHandleList* handlers,
     Handle<Name> name,
     Code::StubType type,
     IcCheckType check) {
   Label miss;
@@ skipping 72 matching lines @@
   // -----------------------------------
   TailCallBuiltin(masm, Builtins::kKeyedLoadIC_MissForceGeneric);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64