MIPS: Refine '[es6] Introduce a dedicated JSIteratorResult type.'

src/full-codegen/mips/full-codegen-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_MIPS
 
 // Note on Mips implementation:
 //
 // The result_register() for mips is the 'v0' register, which is defined
 // by the ABI to contain function return values. However, the first
@@ skipping 2262 matching lines @@
 
   __ bind(&allocate);
   __ Push(Smi::FromInt(JSIteratorResult::kSize));
   __ CallRuntime(Runtime::kAllocateInNewSpace, 1);
 
   __ bind(&done_allocate);
   __ lw(a1, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
   __ lw(a1, FieldMemOperand(a1, GlobalObject::kNativeContextOffset));
   __ lw(a1, ContextOperand(a1, Context::ITERATOR_RESULT_MAP_INDEX));
   __ pop(a2);
-  __ li(a3, Operand(isolate()->factory()->ToBoolean(done)));
-  __ li(t0, Operand(isolate()->factory()->empty_fixed_array()));
+  __ LoadRoot(a3,
+              done ? Heap::kTrueValueRootIndex : Heap::kFalseValueRootIndex);
+  __ LoadRoot(t0, Heap::kEmptyFixedArrayRootIndex);
   __ sw(a1, FieldMemOperand(v0, HeapObject::kMapOffset));
   __ sw(t0, FieldMemOperand(v0, JSObject::kPropertiesOffset));
   __ sw(t0, FieldMemOperand(v0, JSObject::kElementsOffset));
   __ sw(a2, FieldMemOperand(v0, JSIteratorResult::kValueOffset));
   __ sw(a3, FieldMemOperand(v0, JSIteratorResult::kDoneOffset));
   STATIC_ASSERT(JSIteratorResult::kSize == 5 * kPointerSize);
 }
 
 
 void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) {
@@ skipping 2196 matching lines @@
   DCHECK_EQ(2, args->length());
   VisitForStackValue(args->at(0));
   VisitForStackValue(args->at(1));
 
   Label runtime, done;
 
   __ Allocate(JSIteratorResult::kSize, v0, a2, a3, &runtime, TAG_OBJECT);
   __ lw(a1, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
   __ lw(a1, FieldMemOperand(a1, GlobalObject::kNativeContextOffset));
   __ lw(a1, ContextOperand(a1, Context::ITERATOR_RESULT_MAP_INDEX));
-  __ pop(a3);
-  __ pop(a2);
-  __ li(t0, Operand(isolate()->factory()->empty_fixed_array()));
+  __ Pop(a2, a3);
+  __ LoadRoot(t0, Heap::kEmptyFixedArrayRootIndex);
   __ sw(a1, FieldMemOperand(v0, HeapObject::kMapOffset));
   __ sw(t0, FieldMemOperand(v0, JSObject::kPropertiesOffset));
   __ sw(t0, FieldMemOperand(v0, JSObject::kElementsOffset));
   __ sw(a2, FieldMemOperand(v0, JSIteratorResult::kValueOffset));
   __ sw(a3, FieldMemOperand(v0, JSIteratorResult::kDoneOffset));
   STATIC_ASSERT(JSIteratorResult::kSize == 5 * kPointerSize);
   __ jmp(&done);
 
   __ bind(&runtime);
   __ CallRuntime(Runtime::kCreateIterResultObject, 2);
@@ skipping 825 matching lines @@
          reinterpret_cast<uint32_t>(
              isolate->builtins()->OsrAfterStackCheck()->entry()));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS