Implement handlified String::Equals and Name::Equals.

src/x64/lithium-codegen-x64.cc

 // Copyright 2013 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 5318 matching lines @@
   Handle<String> type_name = instr->type_literal();
   int left_block = instr->TrueDestination(chunk_);
   int right_block = instr->FalseDestination(chunk_);
   int next_block = GetNextEmittedBlock();
 
   Label::Distance true_distance = left_block == next_block ? Label::kNear
                                                            : Label::kFar;
   Label::Distance false_distance = right_block == next_block ? Label::kNear
                                                              : Label::kFar;
   Condition final_branch_condition = no_condition;
-  if (type_name->Equals(heap()->number_string())) {
+  Factory* factory = isolate()->factory();
+  if (String::Equals(type_name, factory->number_string())) {
     __ JumpIfSmi(input, true_label, true_distance);
     __ CompareRoot(FieldOperand(input, HeapObject::kMapOffset),
                    Heap::kHeapNumberMapRootIndex);
 
     final_branch_condition = equal;
 
-  } else if (type_name->Equals(heap()->string_string())) {
+  } else if (String::Equals(type_name, factory->string_string())) {
     __ JumpIfSmi(input, false_label, false_distance);
     __ CmpObjectType(input, FIRST_NONSTRING_TYPE, input);
     __ j(above_equal, false_label, false_distance);
     __ testb(FieldOperand(input, Map::kBitFieldOffset),
              Immediate(1 << Map::kIsUndetectable));
     final_branch_condition = zero;
 
-  } else if (type_name->Equals(heap()->symbol_string())) {
+  } else if (String::Equals(type_name, factory->symbol_string())) {
     __ JumpIfSmi(input, false_label, false_distance);
     __ CmpObjectType(input, SYMBOL_TYPE, input);
     final_branch_condition = equal;
 
-  } else if (type_name->Equals(heap()->boolean_string())) {
+  } else if (String::Equals(type_name, factory->boolean_string())) {
     __ CompareRoot(input, Heap::kTrueValueRootIndex);
     __ j(equal, true_label, true_distance);
     __ CompareRoot(input, Heap::kFalseValueRootIndex);
     final_branch_condition = equal;
 
-  } else if (FLAG_harmony_typeof && type_name->Equals(heap()->null_string())) {
+  } else if (FLAG_harmony_typeof &&
+             String::Equals(type_name, factory->null_string())) {
     __ CompareRoot(input, Heap::kNullValueRootIndex);
     final_branch_condition = equal;
 
-  } else if (type_name->Equals(heap()->undefined_string())) {
+  } else if (String::Equals(type_name, factory->undefined_string())) {
     __ CompareRoot(input, Heap::kUndefinedValueRootIndex);
     __ j(equal, true_label, true_distance);
     __ JumpIfSmi(input, false_label, false_distance);
     // Check for undetectable objects => true.
     __ movp(input, FieldOperand(input, HeapObject::kMapOffset));
     __ testb(FieldOperand(input, Map::kBitFieldOffset),
              Immediate(1 << Map::kIsUndetectable));
     final_branch_condition = not_zero;
 
-  } else if (type_name->Equals(heap()->function_string())) {
+  } else if (String::Equals(type_name, factory->function_string())) {
     STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2);
     __ JumpIfSmi(input, false_label, false_distance);
     __ CmpObjectType(input, JS_FUNCTION_TYPE, input);
     __ j(equal, true_label, true_distance);
     __ CmpInstanceType(input, JS_FUNCTION_PROXY_TYPE);
     final_branch_condition = equal;
 
-  } else if (type_name->Equals(heap()->object_string())) {
+  } else if (String::Equals(type_name, factory->object_string())) {
     __ JumpIfSmi(input, false_label, false_distance);
     if (!FLAG_harmony_typeof) {
       __ CompareRoot(input, Heap::kNullValueRootIndex);
       __ j(equal, true_label, true_distance);
     }
     __ CmpObjectType(input, FIRST_NONCALLABLE_SPEC_OBJECT_TYPE, input);
     __ j(below, false_label, false_distance);
     __ CmpInstanceType(input, LAST_NONCALLABLE_SPEC_OBJECT_TYPE);
     __ j(above, false_label, false_distance);
     // Check for undetectable objects => false.
@@ skipping 289 matching lines @@
   __ bind(deferred->exit());
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64