Optimize %ClassOf() on IA-32 and use it instead of the...

src/runtime.cc

 // Copyright 2006-2009 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 395 matching lines @@
 
 static Object* Runtime_ClassOf(Arguments args) {
   NoHandleAllocation ha;
   ASSERT(args.length() == 1);
   Object* obj = args[0];
   if (!obj->IsJSObject()) return Heap::null_value();
   return JSObject::cast(obj)->class_name();
 }
 
 
-static Object* Runtime_HasStringClass(Arguments args) {
-  return Heap::ToBoolean(args[0]->HasSpecificClassOf(Heap::String_symbol()));
-}
-
-
-static Object* Runtime_HasDateClass(Arguments args) {
-  return Heap::ToBoolean(args[0]->HasSpecificClassOf(Heap::Date_symbol()));
-}
-
-
-static Object* Runtime_HasArrayClass(Arguments args) {
-  return Heap::ToBoolean(args[0]->HasSpecificClassOf(Heap::Array_symbol()));
-}
-
-
-static Object* Runtime_HasFunctionClass(Arguments args) {
-  return Heap::ToBoolean(
-             args[0]->HasSpecificClassOf(Heap::function_class_symbol()));
-}
-
-
-static Object* Runtime_HasNumberClass(Arguments args) {
-  return Heap::ToBoolean(args[0]->HasSpecificClassOf(Heap::Number_symbol()));
-}
-
-
-static Object* Runtime_HasBooleanClass(Arguments args) {
-  return Heap::ToBoolean(args[0]->HasSpecificClassOf(Heap::Boolean_symbol()));
-}
-
-
-static Object* Runtime_HasArgumentsClass(Arguments args) {
-  return Heap::ToBoolean(
-             args[0]->HasSpecificClassOf(Heap::Arguments_symbol()));
-}
-
-
-static Object* Runtime_HasRegExpClass(Arguments args) {
-  return Heap::ToBoolean(args[0]->HasSpecificClassOf(Heap::RegExp_symbol()));
-}
-
-
 static Object* Runtime_IsInPrototypeChain(Arguments args) {
   NoHandleAllocation ha;
   ASSERT(args.length() == 2);
   // See ECMA-262, section 15.3.5.3, page 88 (steps 5 - 8).
   Object* O = args[0];
   Object* V = args[1];
   while (true) {
     Object* prototype = V->GetPrototype();
     if (prototype->IsNull()) return Heap::false_value();
     if (O == prototype) return Heap::true_value();
@@ skipping 7032 matching lines @@
   } else {
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     Counters::gc_last_resort_from_js.Increment();
     Heap::CollectAllGarbage();
   }
 }
 
 
 } }  // namespace v8::internal