Support for MIPS in architecture independent files....

src/mips/stub-cache-mips.cc

+#include "v8.h"
+
+#include "ic-inl.h"
+#include "codegen-inl.h"
+#include "stub-cache.h"
+
+namespace v8 {
+namespace internal {
+
+#define __ ACCESS_MASM(masm)
+
+
+//static void ProbeTable(MacroAssembler* masm,
+//                       Code::Flags flags,
+//                       StubCache::Table table,
+//                       Register name,
+//                       Register offset) {
+//  UNIMPLEMENTED_();
+//  ExternalReference key_offset(SCTableReference::keyReference(table));
+//  ExternalReference value_offset(SCTableReference::valueReference(table));
+//
+//  Label miss;
+//
+//  // Save the offset on the stack.
+//  __ push(offset);
+//
+//  // Check that the key in the entry matches the name.
+////  __ mov(ip, Operand(key_offset));
+////  __ ldr(ip, MemOperand(ip, offset, LSL, 1));
+////  __ cmp(name, Operand(ip));
+////  __ b(ne, &miss);
+//  __ li(ip, Operand(key_offset));
+//  __ sll(t0, offset, 1);    // Don't clobber t0 we use it again below.
+//  __ addu(t1, ip, t0);
+//  __ lw(ip, MemOperand(t1));
+//  __ bcond(ne, &miss, name, Operand(ip));
+//  __ nop(); // NOP_ADDED
+//
+//  // Get the code entry from the cache.
+////  __ mov(ip, Operand(value_offset));
+////  __ ldr(offset, MemOperand(ip, offset, LSL, 1));
+//  __ li(ip, Operand(value_offset));
+////  __ sll(t0, offset, 1);  // Done a few instructions above.
+//  __ addu(t1, ip, t0);
+//  __ lw(offset, MemOperand(t1));
+//
+//  // Check that the flags match what we're looking for.
+////  __ ldr(offset, FieldMemOperand(offset, Code::kFlagsOffset));
+////  __ and_(offset, offset, Operand(~Code::kFlagsNotUsedInLookup));
+////  __ cmp(offset, Operand(flags));
+////  __ b(ne, &miss);
+//  __ lw(offset, FieldMemOperand(offset, Code::kFlagsOffset));
+//  __ and_(offset, offset, Operand(~Code::kFlagsNotUsedInLookup));
+//  __ bcond(ne, &miss, offset, Operand(flags));
+//  __ nop(); // NOP_ADDED
+//
+//  // Restore offset and re-load code entry from cache.
+//  __ pop(offset);
+////  __ mov(ip, Operand(value_offset));
+////  __ ldr(offset, MemOperand(ip, offset, LSL, 1));
+//  __ li(ip, Operand(value_offset));
+////  __ sll(t0, offset, 1);  // Done a few instructions above.
+//  __ addu(t1, ip, t0);
+//  __ lw(ip, MemOperand(t1));
+//
+//  // Jump to the first instruction in the code stub.
+////  __ add(offset, offset, Operand(Code::kHeaderSize - kHeapObjectTag));
+//  __ addu(offset, offset, Operand(Code::kHeaderSize - kHeapObjectTag));
+//  __ Jump(offset);
+//  __ nop(); // NOP_ADDED
+//
+//  // Miss: Restore offset and fall through.
+//  __ bind(&miss);
+//  __ pop(offset);
+//}
+
+
+void StubCache::GenerateProbe(MacroAssembler* masm,
+                              Code::Flags flags,
+                              Register receiver,
+                              Register name,
+                              Register scratch,
+                              Register extra) {
+  UNIMPLEMENTED_();
+//  Label miss;
+//
+//  // Make sure that code is valid. The shifting code relies on the
+//  // entry size being 8.
+//  ASSERT(sizeof(Entry) == 8);
+//
+//  // Make sure the flags does not name a specific type.
+//  ASSERT(Code::ExtractTypeFromFlags(flags) == 0);
+////
+//  // Make sure that there are no register conflicts.
+//  ASSERT(!scratch.is(receiver));
+//  ASSERT(!scratch.is(name));
+//
+//  // Check that the receiver isn't a smi.
+////  __ tst(receiver, Operand(kSmiTagMask));
+////  __ b(eq, &miss);
+//  __ andi(scratch, receiver, Operand(kSmiTagMask));
+//  __ bcond(eq, &miss, scratch, Operand(zero_reg));
+//  __ nop(); // NOP_ADDED
+//
+//  // Get the map of the receiver and compute the hash.
+////  __ ldr(scratch, FieldMemOperand(name, String::kLengthOffset));
+////  __ ldr(ip, FieldMemOperand(receiver, HeapObject::kMapOffset));
+////  __ add(scratch, scratch, Operand(ip));
+////  __ eor(scratch, scratch, Operand(flags));
+////  __ and_(scratch,
+////          scratch,
+////          Operand((kPrimaryTableSize - 1) << kHeapObjectTagSize));
+//  __ lw(scratch, FieldMemOperand(name, String::kLengthOffset));
+//  __ lw(ip, FieldMemOperand(receiver, HeapObject::kMapOffset));
+//  __ addu(scratch, scratch, Operand(ip));
+//  __ xor_(scratch, scratch, Operand(flags));
+//  __ and_(scratch,
+//          scratch,
+//          Operand((kPrimaryTableSize - 1) << kHeapObjectTagSize));
+//
+//  // Probe the primary table.
+//  ProbeTable(masm, flags, kPrimary, name, scratch);
+//
+//  // Primary miss: Compute hash for secondary probe.
+////  __ sub(scratch, scratch, Operand(name));
+////  __ add(scratch, scratch, Operand(flags));
+////  __ and_(scratch,
+////          scratch,
+////          Operand((kSecondaryTableSize - 1) << kHeapObjectTagSize));
+//  __ subu(scratch, scratch, Operand(name));
+//  __ addu(scratch, scratch, Operand(flags));
+//  __ and_(scratch,
+//          scratch,
+//          Operand((kSecondaryTableSize - 1) << kHeapObjectTagSize));
+//
+//  // Probe the secondary table.
+//  ProbeTable(masm, flags, kSecondary, name, scratch);
+//
+//  // Cache miss: Fall-through and let caller handle the miss by
+//  // entering the runtime system.
+//  __ bind(&miss);
+}
+
+
+void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm,
+                                                       int index,
+                                                       Register prototype) {
+  UNIMPLEMENTED_();
+//  // Load the global or builtins object from the current context.
+////  __ ldr(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX)));
+//  __ lw(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX)));
+//  // Load the global context from the global or builtins object.
+////  __ ldr(prototype,
+////         FieldMemOperand(prototype, GlobalObject::kGlobalContextOffset));
+//  __ lw(prototype,
+//         FieldMemOperand(prototype, GlobalObject::kGlobalContextOffset));
+//  // Load the function from the global context.
+////  __ ldr(prototype, MemOperand(prototype, Context::SlotOffset(index)));
+//  __ lw(prototype, MemOperand(prototype, Context::SlotOffset(index)));
+//  // Load the initial map.  The global functions all have initial maps.
+////  __ ldr(prototype,
+////         FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset));
+//  __ lw(prototype,
+//         FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset));
+//  // Load the prototype from the initial map.
+//  __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset));
+}
+
+
+// Load a fast property out of a holder object (src). In-object properties
+// are loaded directly otherwise the property is loaded from the properties
+// fixed array.
+void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm,
+                                            Register dst, Register src,
+                                            JSObject* holder, int index) {
+  UNIMPLEMENTED_();
+//  // Adjust for the number of properties stored in the holder.
+//  index -= holder->map()->inobject_properties();
+//  if (index < 0) {
+//    // Get the property straight out of the holder.
+//    int offset = holder->map()->instance_size() + (index * kPointerSize);
+////    __ ldr(dst, FieldMemOperand(src, offset));
+//    __ lw(dst, FieldMemOperand(src, offset));
+//  } else {
+//    // Calculate the offset into the properties array.
+//    int offset = index * kPointerSize + FixedArray::kHeaderSize;
+////    __ ldr(dst, FieldMemOperand(src, JSObject::kPropertiesOffset));
+////    __ ldr(dst, FieldMemOperand(dst, offset));
+//    __ lw(dst, FieldMemOperand(src, JSObject::kPropertiesOffset));
+//    __ lw(dst, FieldMemOperand(dst, offset));
+//  }
+}
+
+
+void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm,
+                                           Register receiver,
+                                           Register scratch,
+                                           Label* miss_label) {
+  UNIMPLEMENTED_();
+//  // Check that the receiver isn't a smi.
+////  __ tst(receiver, Operand(kSmiTagMask));
+////  __ b(eq, miss_label);
+//  __ andi(scratch, receiver, Operand(kSmiTagMask));
+//  __ bcond(eq, miss_label, scratch, Operand(zero_reg));
+//  __ nop(); // NOP_ADDED
+//
+//  // Check that the object is a JS array.
+////  __ CompareObjectType(receiver, scratch, scratch, JS_ARRAY_TYPE);
+////  __ b(ne, miss_label);
+//  __ GetObjectType(receiver, scratch, scratch);
+//  __ bcond(ne, miss_label, scratch, Operand(JS_ARRAY_TYPE));
+//  __ nop(); // NOP_ADDED
+//
+//  // Load length directly from the JS array.
+////  __ ldr(r0, FieldMemOperand(receiver, JSArray::kLengthOffset));
+//  __ lw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset));
+//  __ Ret();
+//  __ nop(); // NOP_ADDED
+}
+
+
+// Generate code to check if an object is a string.  If the object is
+// a string, the map's instance type is left in the scratch1 register.
+//static void GenerateStringCheck(MacroAssembler* masm,
+//                                Register receiver,
+//                                Register scratch1,
+//                                Register scratch2,
+//                                Label* smi,
+//                                Label* non_string_object) {
+//  // Check that the receiver isn't a smi.
+//  __ tst(receiver, Operand(kSmiTagMask));
+//  __ b(eq, smi);
+//
+//  // Check that the object is a string.
+//  __ ldr(scratch1, FieldMemOperand(receiver, HeapObject::kMapOffset));
+//  __ ldrb(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset));
+//  __ and_(scratch2, scratch1, Operand(kIsNotStringMask));
+//  // The cast is to resolve the overload for the argument of 0x0.
+//  __ cmp(scratch2, Operand(static_cast<int32_t>(kStringTag)));
+//  __ b(ne, non_string_object);
+//}
+
+
+// Generate code to load the length from a string object and return the length.
+// If the receiver object is not a string or a wrapped string object the
+// execution continues at the miss label. The register containing the
+// receiver is potentially clobbered.
+void StubCompiler::GenerateLoadStringLength2(MacroAssembler* masm,
+                                             Register receiver,
+                                             Register scratch1,
+                                             Register scratch2,
+                                             Label* miss) {
+  UNIMPLEMENTED_();
+  __ break_(0x249);
+//  Label check_string, check_wrapper;
+//
+//  __ bind(&check_string);
+//  // Check if the object is a string leaving the instance type in the
+//  // scratch1 register.
+//  GenerateStringCheck(masm, receiver, scratch1, scratch2,
+//                      miss, &check_wrapper);
+//
+//  // Load length directly from the string.
+//  __ and_(scratch1, scratch1, Operand(kStringSizeMask));
+//  __ add(scratch1, scratch1, Operand(String::kHashShift));
+//  __ ldr(r0, FieldMemOperand(receiver, String::kLengthOffset));
+//  __ mov(r0, Operand(r0, LSR, scratch1));
+//  __ mov(r0, Operand(r0, LSL, kSmiTagSize));
+//  __ Ret();
+//
+//  // Check if the object is a JSValue wrapper.
+//  __ bind(&check_wrapper);
+//  __ cmp(scratch1, Operand(JS_VALUE_TYPE));
+//  __ b(ne, miss);
+//
+//  // Unwrap the value in place and check if the wrapped value is a string.
+//  __ ldr(receiver, FieldMemOperand(receiver, JSValue::kValueOffset));
+//  __ b(&check_string);
+}
+
+
+void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm,
+                                                 Register receiver,
+                                                 Register scratch1,
+                                                 Register scratch2,
+                                                 Label* miss_label) {
+  UNIMPLEMENTED_();
+////  __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label);
+////  __ mov(r0, scratch1);
+////  __ Ret();
+//  __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label);
+//  __ mov(v0, scratch1);
+//  __ Ret();
+//  __ nop(); // NOP_ADDED
+}
+
+
+// Generate StoreField code, value is passed in r0 register.
+// After executing generated code, the receiver_reg and name_reg
+// may be clobbered.
+void StubCompiler::GenerateStoreField(MacroAssembler* masm,
+                                      Builtins::Name storage_extend,
+                                      JSObject* object,
+                                      int index,
+                                      Map* transition,
+                                      Register receiver_reg,
+                                      Register name_reg,
+                                      Register scratch,
+                                      Label* miss_label) {
+  UNIMPLEMENTED_();
+//  // a0 : value
+//  Label exit;
+//
+//  // Check that the receiver isn't a smi.
+////  __ tst(receiver_reg, Operand(kSmiTagMask));
+////  __ b(eq, miss_label);
+//  __ andi(t0, receiver_reg, Operand(kSmiTagMask));
+//  __ bcond(eq, miss_label, t0, Operand(zero_reg));
+//  __ nop(); // NOP_ADDED
+//
+//  // Check that the map of the receiver hasn't changed.
+////  __ ldr(scratch, FieldMemOperand(receiver_reg, HeapObject::kMapOffset));
+////  __ cmp(scratch, Operand(Handle<Map>(object->map())));
+////  __ b(ne, miss_label);
+//  __ lw(scratch, FieldMemOperand(receiver_reg, HeapObject::kMapOffset));
+//  __ bcond(ne, miss_label, scratch, Operand(Handle<Map>(object->map())));
+//  __ nop(); // NOP_ADDED
+//
+//  // Perform global security token check if needed.
+//  if (object->IsJSGlobalProxy()) {
+//    __ CheckAccessGlobalProxy(receiver_reg, scratch, miss_label);
+//  }
+//
+//  // Stub never generated for non-global objects that require access
+//  // checks.
+//  ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
+//
+//  // Perform map transition for the receiver if necessary.
+//  if ((transition != NULL) && (object->map()->unused_property_fields() == 0)) {
+//    // The properties must be extended before we can store the value.
+//    // We jump to a runtime call that extends the properties array.
+////    __ mov(r2, Operand(Handle<Map>(transition)));
+//    __ li(a2, Operand(Handle<Map>(transition)));
+//    // Please note, if we implement keyed store for arm we need
+//    // to call the Builtins::KeyedStoreIC_ExtendStorage.
+//    Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_ExtendStorage));
+//    __ Jump(ic, RelocInfo::CODE_TARGET);
+//    __ nop(); // NOP_ADDED
+//    return;
+//  }
+//
+//  if (transition != NULL) {
+//    // Update the map of the object; no write barrier updating is
+//    // needed because the map is never in new space.
+////    __ mov(ip, Operand(Handle<Map>(transition)));
+////    __ str(ip, FieldMemOperand(receiver_reg, HeapObject::kMapOffset));
+//    __ li(ip, Operand(Handle<Map>(transition)));
+//    __ sw(ip, FieldMemOperand(receiver_reg, HeapObject::kMapOffset));
+//  }
+//
+//  // Adjust for the number of properties stored in the object. Even in the
+//  // face of a transition we can use the old map here because the size of the
+//  // object and the number of in-object properties is not going to change.
+//  index -= object->map()->inobject_properties();
+//
+//  if (index < 0) {
+//    // Set the property straight into the object.
+//    int offset = object->map()->instance_size() + (index * kPointerSize);
+////    __ str(r0, FieldMemOperand(receiver_reg, offset));
+//    __ sw(a0, FieldMemOperand(receiver_reg, offset));
+//
+//    // Skip updating write barrier if storing a smi.
+////    __ tst(r0, Operand(kSmiTagMask));
+////    __ b(eq, &exit);
+//    __ andi(t0, a0, Operand(kSmiTagMask));
+//    __ bcond(eq, &exit, t0, Operand(zero_reg));
+//    __ nop();   // NOP_ADDED
+//
+//    // Update the write barrier for the array address.
+//    // Pass the value being stored in the now unused name_reg.
+////    __ mov(name_reg, Operand(offset));
+//    __ li(name_reg, Operand(offset));
+//    __ RecordWrite(receiver_reg, name_reg, scratch);
+//  } else {
+//    // Write to the properties array.
+//    int offset = index * kPointerSize + FixedArray::kHeaderSize;
+//    // Get the properties array
+////    __ ldr(scratch, FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset));
+////    __ str(r0, FieldMemOperand(scratch, offset));
+//    __ lw(scratch, FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset));
+//    __ sw(a0, FieldMemOperand(scratch, offset));
+//
+//    // Skip updating write barrier if storing a smi.
+////    __ tst(r0, Operand(kSmiTagMask));
+////    __ b(eq, &exit);
+//    __ andi(t0, a0, Operand(kSmiTagMask));
+//    __ bcond(eq, &exit, t0, Operand(zero_reg));
+//    __ nop();   // NOP_ADDED
+//
+//    // Update the write barrier for the array address.
+//    // Ok to clobber receiver_reg and name_reg, since we return.
+////    __ mov(name_reg, Operand(offset));
+//    __ li(name_reg, Operand(offset));
+//    __ RecordWrite(scratch, name_reg, receiver_reg);
+//  }
+//
+//  // Return the value (register v0).
+//  __ bind(&exit);
+//  __ mov(v0, a0);
+//  __ Ret();
+//  __ nop(); // NOP_ADDED
+}
+
+
+void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) {
+  UNIMPLEMENTED_();
+//  ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC);
+//  Code* code = NULL;
+//  if (kind == Code::LOAD_IC) {
+//    code = Builtins::builtin(Builtins::LoadIC_Miss);
+//  } else {
+//    code = Builtins::builtin(Builtins::KeyedLoadIC_Miss);
+//  }
+//
+//  Handle<Code> ic(code);
+//  __ Jump(ic, RelocInfo::CODE_TARGET);
+//  __ nop();
+}
+
+
+#undef __
+#define __ ACCESS_MASM(masm())
+
+
+Register StubCompiler::CheckPrototypes(JSObject* object,
+                                       Register object_reg,
+                                       JSObject* holder,
+                                       Register holder_reg,
+                                       Register scratch,
+                                       String* name,
+                                       Label* miss) {
+  UNIMPLEMENTED_();
+//  // Check that the maps haven't changed.
+//  Register result =
+//      masm()->CheckMaps(object, object_reg, holder, holder_reg, scratch, miss);
+//
+//  // If we've skipped any global objects, it's not enough to verify
+//  // that their maps haven't changed.
+//  while (object != holder) {
+//    if (object->IsGlobalObject()) {
+//      GlobalObject* global = GlobalObject::cast(object);
+//      Object* probe = global->EnsurePropertyCell(name);
+//      if (probe->IsFailure()) {
+//        set_failure(Failure::cast(probe));
+//        return result;
+//      }
+//      JSGlobalPropertyCell* cell = JSGlobalPropertyCell::cast(probe);
+//      ASSERT(cell->value()->IsTheHole());
+////      __ mov(scratch, Operand(Handle<Object>(cell)));
+////      __ ldr(scratch,
+////             FieldMemOperand(scratch, JSGlobalPropertyCell::kValueOffset));
+////      __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
+////      __ cmp(scratch, ip);
+////      __ b(ne, miss);
+//      __ li(scratch, Operand(Handle<Object>(cell)));
+//      __ lw(scratch,
+//             FieldMemOperand(scratch, JSGlobalPropertyCell::kValueOffset));
+//      __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
+//      __ bcond(ne, miss, scratch, Operand(ip));
+//      __ nop(); // NOP_ADDED
+//    }
+//    object = JSObject::cast(object->GetPrototype());
+//  }
+//
+//  // Return the register containin the holder.
+//  return result;
+  return at;    // UNIMPLEMENTED RETURN
+}
+
+
+void StubCompiler::GenerateLoadField(JSObject* object,
+                                     JSObject* holder,
+                                     Register receiver,
+                                     Register scratch1,
+                                     Register scratch2,
+                                     int index,
+                                     String* name,
+                                     Label* miss) {
+  UNIMPLEMENTED_();
+//  // Check that the receiver isn't a smi.
+////  __ tst(receiver, Operand(kSmiTagMask));
+////  __ b(eq, miss);
+//  __ andi(t0, receiver, Operand(kSmiTagMask));
+//  __ bcond(eq, miss, t0, Operand(zero_reg));
+//  __ nop(); // NOP_ADDED
+//
+//  // Check that the maps haven't changed.
+//  Register reg =
+//      CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss);
+//  GenerateFastPropertyLoad(masm(), v0, reg, holder, index);
+//  __ Ret();
+//  __ nop(); // NOP_ADDED
+}
+
+
+void StubCompiler::GenerateLoadConstant(JSObject* object,
+                                        JSObject* holder,
+                                        Register receiver,
+                                        Register scratch1,
+                                        Register scratch2,
+                                        Object* value,
+                                        String* name,
+                                        Label* miss) {
+  UNIMPLEMENTED_();
+//  // Check that the receiver isn't a smi.
+////  __ tst(receiver, Operand(kSmiTagMask));
+////  __ b(eq, miss);
+//  __ andi(t0, receiver, Operand(kSmiTagMask));
+//  __ bcond(eq, miss, t0, Operand(zero_reg));
+//  __ nop(); // NOP_ADDED
+//
+//  // Check that the maps haven't changed.
+//  Register reg =
+//      CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss);
+//
+//  // Return the constant value.
+////  __ mov(r0, Operand(Handle<Object>(value)));
+//  __ li(v0, Operand(Handle<Object>(value)));
+//  __ Ret();
+//  __ nop(); // NOP_ADDED
+}
+
+
+void StubCompiler::GenerateLoadCallback(JSObject* object,
+                                        JSObject* holder,
+                                        Register receiver,
+                                        Register name_reg,
+                                        Register scratch1,
+                                        Register scratch2,
+                                        AccessorInfo* callback,
+                                        String* name,
+                                        Label* miss) {
+  UNIMPLEMENTED();
+  __ break_(0x470);
+//  // Check that the receiver isn't a smi.
+//  __ tst(receiver, Operand(kSmiTagMask));
+//  __ b(eq, miss);
+//
+//  // Check that the maps haven't changed.
+//  Register reg =
+//      CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss);
+//
+//  // Push the arguments on the JS stack of the caller.
+//  __ push(receiver);  // receiver
+//  __ push(reg);  // holder
+//  __ mov(ip, Operand(Handle<AccessorInfo>(callback)));  // callback data
+//  __ push(ip);
+//  __ ldr(reg, FieldMemOperand(ip, AccessorInfo::kDataOffset));
+//  __ push(reg);
+//  __ push(name_reg);  // name
+//
+//  // Do tail-call to the runtime system.
+//  ExternalReference load_callback_property =
+//      ExternalReference(IC_Utility(IC::kLoadCallbackProperty));
+//  __ TailCallRuntime(load_callback_property, 5, 1);
+}
+
+
+void StubCompiler::GenerateLoadInterceptor(JSObject* object,
+                                           JSObject* holder,
+                                           LookupResult* lookup,
+                                           Register receiver,
+                                           Register name_reg,
+                                           Register scratch1,
+                                           Register scratch2,
+                                           String* name,
+                                           Label* miss) {
+  UNIMPLEMENTED();
+  __ break_(0x505);
+//  // Check that the receiver isn't a smi.
+//  __ tst(receiver, Operand(kSmiTagMask));
+//  __ b(eq, miss);
+//
+//  // Check that the maps haven't changed.
+//  Register reg =
+//      CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss);
+//
+//  // Push the arguments on the JS stack of the caller.
+//  __ push(receiver);  // receiver
+//  __ push(reg);  // holder
+//  __ push(name_reg);  // name
+//
+//  InterceptorInfo* interceptor = holder->GetNamedInterceptor();
+//  ASSERT(!Heap::InNewSpace(interceptor));
+//  __ mov(scratch1, Operand(Handle<Object>(interceptor)));
+//  __ push(scratch1);
+//  __ ldr(scratch2, FieldMemOperand(scratch1, InterceptorInfo::kDataOffset));
+//  __ push(scratch2);
+//
+//  // Do tail-call to the runtime system.
+//  ExternalReference load_ic_property =
+//      ExternalReference(IC_Utility(IC::kLoadPropertyWithInterceptorForLoad));
+//  __ TailCallRuntime(load_ic_property, 5, 1);
+}
+
+
+Object* StubCompiler::CompileLazyCompile(Code::Flags flags) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- r1->a1: function
+//  //  -- ls->ra: return address
+//  // -----------------------------------
+//
+//  // Enter an internal frame.
+//  __ EnterInternalFrame();
+//
+//  // Preserve the function.
+//  __ push(a1);
+//
+//  // Setup aligned call. arg_count=1 as we will only push the function (a1).
+//  __ SetupAlignedCall(t0, 1);
+//
+//  // Push the function on the stack as the argument to the runtime function.
+//  __ push(a1);
+//
+//  // Call the runtime function
+//  __ CallRuntime(Runtime::kLazyCompile, 1);
+//  __ nop(); // NOP_ADDED
+//
+//  // Calculate the entry point.
+//  __ addiu(t9, v0, Operand(Code::kHeaderSize - kHeapObjectTag));
+//
+//  __ ReturnFromAlignedCall();
+//
+//  // Restore saved function. 
+//  __ pop(a1);
+//
+//  // Tear down temporary frame.
+//  __ LeaveInternalFrame();
+//
+//  // Do a tail-call of the compiled function.
+//  __ Jump(t9);
+////  __ addiu(sp, sp, -StandardFrameConstants::kRArgsSlotsSize);
+////  __ addiu(sp, sp, StandardFrameConstants::kRArgsSlotsSize);
+//  __ nop();
+//
+//  return GetCodeWithFlags(flags, "LazyCompileStub");
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* CallStubCompiler::CompileCallField(Object* object,
+                                           JSObject* holder,
+                                           int index,
+                                           String* name) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- ra: return address
+//  // -----------------------------------
+//  Label miss;
+//
+//  const int argc = arguments().immediate();
+//
+//  __ break_(0x649);
+//
+//  // Get the receiver of the function from the stack into a0.
+////  __ ldr(r0, MemOperand(sp, argc * kPointerSize));
+//  __ lw(a0, MemOperand(sp, argc * kPointerSize
+//                            + StandardFrameConstants::kRArgsSlotsSize));
+//  // Check that the receiver isn't a smi.
+////  __ tst(r0, Operand(kSmiTagMask));
+////  __ b(eq, &miss);
+//  __ andi(t0, a0, Operand(kSmiTagMask));
+//  __ bcond(eq, &miss, t0, Operand(zero_reg));
+//  __ nop(); // NOP_ADDED
+//
+//  // Do the right check and compute the holder register.
+//  Register reg =
+//      CheckPrototypes(JSObject::cast(object), a0, holder, a3, a2, name, &miss);
+//  GenerateFastPropertyLoad(masm(), a1, reg, holder, index);
+//
+//  // Check that the function really is a function.
+////  __ tst(r1, Operand(kSmiTagMask));
+////  __ b(eq, &miss);
+//  __ andi(t1, a1, Operand(kSmiTagMask));
+//  __ bcond(eq, &miss, t1, Operand(zero_reg));
+//  __ nop(); // NOP_ADDED
+//  // Get the map.
+////  __ CompareObjectType(r1, r2, r2, JS_FUNCTION_TYPE);
+////  __ b(ne, &miss);
+//  __ GetObjectType(a1, a2, a2);
+//  __ bcond(ne, &miss, a2, Operand(JS_FUNCTION_TYPE));
+//  __ nop(); // NOP_ADDED
+//
+//  // Patch the receiver on the stack with the global proxy if
+//  // necessary.
+//  if (object->IsGlobalObject()) {
+////    __ ldr(r3, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset));
+////    __ str(r3, MemOperand(sp, argc * kPointerSize));
+//    __ lw(a3, FieldMemOperand(a0, GlobalObject::kGlobalReceiverOffset));
+//    __ break_(0x645);
+//    __ sw(a3, MemOperand(sp, argc * kPointerSize
+//                            + StandardFrameConstants::kRArgsSlotsSize));
+//  }
+//
+//  __ break_(0x688);
+//  // Invoke the function.
+//  __ InvokeFunction(a1, arguments(), JUMP_FUNCTION);
+//  __ nop(); // NOP_ADDED
+//
+//  // Handle call cache miss.
+//  __ bind(&miss);
+//  Handle<Code> ic = ComputeCallMiss(arguments().immediate());
+//  __ Jump(ic, RelocInfo::CODE_TARGET);
+//  __ nop(); // NOP_ADDED
+//
+//  // Return the generated code.
+//  return GetCode(FIELD, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* CallStubCompiler::CompileCallConstant(Object* object,
+                                              JSObject* holder,
+                                              JSFunction* function,
+                                              String* name,
+                                              CheckType check) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- ra: return address
+//  // -----------------------------------
+//  Label miss;
+//
+//  // Get the receiver from the stack
+//  const int argc = arguments().immediate();
+//  __ break_(0x719);
+////  __ ldr(r1, MemOperand(sp, argc * kPointerSize));
+//  __ lw(a1, MemOperand(sp, argc * kPointerSize
+//                            + StandardFrameConstants::kRArgsSlotsSize));
+//
+//  // Check that the receiver isn't a smi.
+//  if (check != NUMBER_CHECK) {
+////    __ tst(r1, Operand(kSmiTagMask));
+////    __ b(eq, &miss);
+//    __ andi(t1, a1, Operand(kSmiTagMask));
+//    __ bcond(eq, &miss, t1, Operand(zero_reg));
+//    __ nop(); // NOP_ADDED
+//  }
+//
+//  // Make sure that it's okay not to patch the on stack receiver
+//  // unless we're doing a receiver map check.
+//  ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK);
+//
+//  switch (check) {
+//    case RECEIVER_MAP_CHECK:
+//      // Check that the maps haven't changed.
+//      CheckPrototypes(JSObject::cast(object), a1, holder, a3, a2, name, &miss);
+//
+//      // Patch the receiver on the stack with the global proxy if
+//      // necessary.
+//      if (object->IsGlobalObject()) {
+//        __ break_(0x745);
+////        __ ldr(r3, FieldMemOperand(r1, GlobalObject::kGlobalReceiverOffset));
+////        __ str(r3, MemOperand(sp, argc * kPointerSize));
+//        __ lw(a3, FieldMemOperand(a1, GlobalObject::kGlobalReceiverOffset));
+//        __ sw(a3, MemOperand(sp, argc * kPointerSize
+//                                  + StandardFrameConstants::kRArgsSlotsSize));
+//      }
+//      break;
+//
+//    case STRING_CHECK:
+//      // Check that the object is a two-byte string or a symbol.
+////      __ CompareObjectType(r1, r2, r2, FIRST_NONSTRING_TYPE);
+////      __ b(hs, &miss);
+//      __ GetObjectType(a1, a2, a2);
+//      __ bcond(Ugreater_equal, &miss, a2, Operand(FIRST_NONSTRING_TYPE));
+//      __ nop(); // NOP_ADDED
+//      // Check that the maps starting from the prototype haven't changed.
+//      GenerateLoadGlobalFunctionPrototype(masm(),
+//                                          Context::STRING_FUNCTION_INDEX,
+//                                          a2);
+//      CheckPrototypes(JSObject::cast(object->GetPrototype()), a2, holder, a3,
+//                      a1, name, &miss);
+//      break;
+//
+//    case NUMBER_CHECK: {
+//      Label fast;
+//      // Check that the object is a smi or a heap number.
+////      __ tst(r1, Operand(kSmiTagMask));
+////      __ b(eq, &fast);
+////      __ CompareObjectType(r1, r2, r2, HEAP_NUMBER_TYPE);
+////      __ b(ne, &miss);
+////      __ bind(&fast);
+//      __ andi(t1, a1, Operand(kSmiTagMask));
+//      __ bcond(eq, &fast, t1, Operand(zero_reg));
+//      __ nop(); // NOP_ADDED
+//      __ GetObjectType(a1, a2, a2);
+//      __ bcond(ne, &miss, a2, Operand(HEAP_NUMBER_TYPE));
+//      __ nop(); // NOP_ADDED
+//      __ bind(&fast);
+//      // Check that the maps starting from the prototype haven't changed.
+//      GenerateLoadGlobalFunctionPrototype(masm(),
+//                                          Context::NUMBER_FUNCTION_INDEX,
+//                                          a2);
+//      CheckPrototypes(JSObject::cast(object->GetPrototype()), a2, holder, a3,
+//                      a1, name, &miss);
+//      break;
+//    }
+////
+//    case BOOLEAN_CHECK: {
+//      Label fast;
+//      // Check that the object is a boolean.
+////      __ LoadRoot(ip, Heap::kTrueValueRootIndex);
+////      __ cmp(r1, ip);
+////      __ b(eq, &fast);
+////      __ LoadRoot(ip, Heap::kFalseValueRootIndex);
+////      __ cmp(r1, ip);
+////      __ b(ne, &miss);
+////      __ bind(&fast);
+//      __ LoadRoot(ip, Heap::kTrueValueRootIndex);
+//      __ bcond(eq, &fast, a1, Operand(ip));
+//      __ nop(); // NOP_ADDED
+//      __ LoadRoot(ip, Heap::kFalseValueRootIndex);
+//      __ bcond(ne, &miss, a1, Operand(ip));
+//      __ nop(); // NOP_ADDED
+//      __ bind(&fast);
+//      // Check that the maps starting from the prototype haven't changed.
+//      GenerateLoadGlobalFunctionPrototype(masm(),
+//                                          Context::BOOLEAN_FUNCTION_INDEX,
+//                                          a2);
+//      CheckPrototypes(JSObject::cast(object->GetPrototype()), a2, holder, a3,
+//                      a1, name, &miss);
+//      break;
+//    }
+//
+//    case JSARRAY_HAS_FAST_ELEMENTS_CHECK:
+//      CheckPrototypes(JSObject::cast(object), a1, holder, a3, a2, name, &miss);
+//      // Make sure object->HasFastElements().
+//      // Get the elements array of the object.
+////      __ ldr(r3, FieldMemOperand(r1, JSObject::kElementsOffset));
+//      __ lw(a3, FieldMemOperand(a1, JSObject::kElementsOffset));
+//      // Check that the object is in fast mode (not dictionary).
+////      __ ldr(r2, FieldMemOperand(r3, HeapObject::kMapOffset));
+////      __ LoadRoot(ip, Heap::kFixedArrayMapRootIndex);
+////      __ cmp(r2, ip);
+////      __ b(ne, &miss);
+//      __ lw(a2, FieldMemOperand(a3, HeapObject::kMapOffset));
+//      __ LoadRoot(ip, Heap::kFixedArrayMapRootIndex);
+//      __ bcond(ne, &miss, a2, Operand(ip));
+//      __ nop(); // NOP_ADDED
+//      break;
+////
+//    default:
+//      UNREACHABLE();
+//  }
+//
+//  // Get the function and setup the context.
+////  __ mov(r1, Operand(Handle<JSFunction>(function)));
+////  __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset));
+//  __ li(a1, Operand(Handle<JSFunction>(function)));
+//  __ lw(cp, FieldMemOperand(a1, JSFunction::kContextOffset));
+//
+//  // Jump to the cached code (tail call).
+//  ASSERT(function->is_compiled());
+//  Handle<Code> code(function->code());
+//  ParameterCount expected(function->shared()->formal_parameter_count());
+//  __ InvokeCode(code, expected, arguments(),
+//                RelocInfo::CODE_TARGET, JUMP_FUNCTION);
+//  __ nop(); // NOP_ADDED
+//
+//  // Handle call cache miss.
+//  __ bind(&miss);
+//  Handle<Code> ic = ComputeCallMiss(arguments().immediate());
+//  __ Jump(ic, RelocInfo::CODE_TARGET);
+//  __ nop(); // NOP_ADDED
+//
+//  // Return the generated code.
+//  String* function_name = NULL;
+//  if (function->shared()->name()->IsString()) {
+//    function_name = String::cast(function->shared()->name());
+//  }
+//  return GetCode(CONSTANT_FUNCTION, function_name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* CallStubCompiler::CompileCallInterceptor(Object* object,
+                                                 JSObject* holder,
+                                                 String* name) {
+  UNIMPLEMENTED();
+  __ break_(0x782);
+//  // ----------- S t a t e -------------
+//  //  -- lr: return address
+//  // -----------------------------------
+//  Label miss;
+//
+//  // TODO(1224669): Implement.
+//
+//  // Handle call cache miss.
+//  __ bind(&miss);
+//  Handle<Code> ic = ComputeCallMiss(arguments().immediate());
+//  __ Jump(ic, RelocInfo::CODE_TARGET);
+//  __ nop(); // NOP_ADDED
+//
+//  // Return the generated code.
+  return GetCode(INTERCEPTOR, name);
+}
+
+
+Object* CallStubCompiler::CompileCallGlobal(JSObject* object,
+                                            GlobalObject* holder,
+                                            JSGlobalPropertyCell* cell,
+                                            JSFunction* function,
+                                            String* name) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- ra: return address
+//  // -----------------------------------
+//  Label miss;
+//
+//  // Get the number of arguments.
+//  const int argc = arguments().immediate();
+//
+//  // Get the receiver from the stack.
+////  __ ldr(r0, MemOperand(sp, argc * kPointerSize));
+////  __ lw(a0, MemOperand(sp, argc * kPointerSize));
+//  __ teq(fp, zero_reg, 0x111);
+//  __ lw(a0, MemOperand(sp, argc * kPointerSize));
+////                            + StandardFrameConstants::kRArgsSlotsSize));
+//
+//  // If the object is the holder then we know that it's a global
+//  // object which can only happen for contextual calls. In this case,
+//  // the receiver cannot be a smi.
+//  if (object != holder) {
+////    __ tst(r0, Operand(kSmiTagMask));
+////    __ b(eq, &miss);
+//    __ andi(t0, a0, Operand(kSmiTagMask));
+//    __ bcond(eq, &miss, t0, Operand(zero_reg));
+//    __ nop(); // NOP_ADDED
+//  }
+//
+//  // Check that the maps haven't changed.
+//  CheckPrototypes(object, a0, holder, a3, a2, name, &miss);
+//
+//  // Get the value from the cell.
+////  __ mov(r3, Operand(Handle<JSGlobalPropertyCell>(cell)));
+////  __ ldr(r1, FieldMemOperand(r3, JSGlobalPropertyCell::kValueOffset));
+//  __ li(a3, Operand(Handle<JSGlobalPropertyCell>(cell)));
+//  __ lw(a1, FieldMemOperand(a3, JSGlobalPropertyCell::kValueOffset));
+//
+//  // Check that the cell contains the same function.
+////  __ cmp(r1, Operand(Handle<JSFunction>(function)));
+////  __ b(ne, &miss);
+//  __ bcond(ne, &miss, a1, Operand(Handle<JSFunction>(function)));
+//  __ nop(); // NOP_ADDED
+//
+//  // Patch the receiver on the stack with the global proxy if
+//  // necessary.
+//  if (object->IsGlobalObject()) {
+////    __ ldr(r3, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset));
+////    __ str(r3, MemOperand(sp, argc * kPointerSize));
+//    __ lw(a3, FieldMemOperand(a0, GlobalObject::kGlobalReceiverOffset));
+//    __ sw(a3, MemOperand(sp, argc * kPointerSize));
+////                            + StandardFrameConstants::kRArgsSlotsSize));
+//  }
+//
+//  // Setup the context (function already in r1).
+////  __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset));
+//  __ lw(cp, FieldMemOperand(a1, JSFunction::kContextOffset));
+//
+//  // Jump to the cached code (tail call).
+//  __ IncrementCounter(&Counters::call_global_inline, 1, a2, a3);
+//  ASSERT(function->is_compiled());
+//  Handle<Code> code(function->code());
+//  ParameterCount expected(function->shared()->formal_parameter_count());
+//  __ InvokeCode(code, expected, arguments(),
+//                RelocInfo::CODE_TARGET, JUMP_FUNCTION);
+//  __ nop(); // NOP_ADDED
+//
+//  // Handle call cache miss.
+//  __ bind(&miss);
+//  __ IncrementCounter(&Counters::call_global_inline_miss, 1, a1, a3);
+//  Handle<Code> ic = ComputeCallMiss(arguments().immediate());
+//  __ Jump(ic, RelocInfo::CODE_TARGET);
+//  __ nop(); // NOP_ADDED
+//
+//  // Return the generated code.
+//  return GetCode(NORMAL, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* StoreStubCompiler::CompileStoreField(JSObject* object,
+                                             int index,
+                                             Map* transition,
+                                             String* name) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- a0    : value
+//  //  -- a2    : name
+//  //  -- ra    : return address
+//  //  -- [sp]  : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+//  // Get the receiver from the stack.
+////  __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
+//  __ lw(a3, MemOperand(sp, 0 * kPointerSize));
+//
+//  // name register might be clobbered.
+//  GenerateStoreField(masm(),
+//                     Builtins::StoreIC_ExtendStorage,
+//                     object,
+//                     index,
+//                     transition,
+//                     a3, a2, a1,
+//                     &miss);
+//  __ bind(&miss);
+////  __ mov(r2, Operand(Handle<String>(name)));  // restore name
+//  __ li(a2, Operand(Handle<String>(name)));  // restore name
+//  Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+//  __ Jump(ic, RelocInfo::CODE_TARGET);
+//  __ nop(); // NOP_ADDED
+//
+//  // Return the generated code.
+//  return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* StoreStubCompiler::CompileStoreCallback(JSObject* object,
+                                                AccessorInfo* callback,
+                                                String* name) {
+  UNIMPLEMENTED();
+  __ break_(0x906);
+//  // ----------- S t a t e -------------
+//  //  -- r0    : value
+//  //  -- r2    : name
+//  //  -- lr    : return address
+//  //  -- [sp]  : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+//  // Get the object from the stack.
+//  __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
+//
+//  // Check that the object isn't a smi.
+//  __ tst(r3, Operand(kSmiTagMask));
+//  __ b(eq, &miss);
+//
+//  // Check that the map of the object hasn't changed.
+//  __ ldr(r1, FieldMemOperand(r3, HeapObject::kMapOffset));
+//  __ cmp(r1, Operand(Handle<Map>(object->map())));
+//  __ b(ne, &miss);
+//
+//  // Perform global security token check if needed.
+//  if (object->IsJSGlobalProxy()) {
+//    __ CheckAccessGlobalProxy(r3, r1, &miss);
+//  }
+//
+//  // Stub never generated for non-global objects that require access
+//  // checks.
+//  ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
+//
+//  __ ldr(ip, MemOperand(sp));  // receiver
+//  __ push(ip);
+//  __ mov(ip, Operand(Handle<AccessorInfo>(callback)));  // callback info
+//  __ push(ip);
+//  __ push(r2);  // name
+//  __ push(r0);  // value
+//
+//  // Do tail-call to the runtime system.
+//  ExternalReference store_callback_property =
+//      ExternalReference(IC_Utility(IC::kStoreCallbackProperty));
+//  __ TailCallRuntime(store_callback_property, 4, 1);
+//
+//  // Handle store cache miss.
+//  __ bind(&miss);
+//  __ mov(r2, Operand(Handle<String>(name)));  // restore name
+//  Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+//  __ Jump(ic, RelocInfo::CODE_TARGET);
+//
+//  // Return the generated code.
+//  return GetCode(CALLBACKS, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver,
+                                                   String* name) {
+  UNIMPLEMENTED();
+  __ break_(0x962);
+//  // ----------- S t a t e -------------
+//  //  -- r0    : value
+//  //  -- r2    : name
+//  //  -- lr    : return address
+//  //  -- [sp]  : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+//  // Get the object from the stack.
+//  __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
+//
+//  // Check that the object isn't a smi.
+//  __ tst(r3, Operand(kSmiTagMask));
+//  __ b(eq, &miss);
+//
+//  // Check that the map of the object hasn't changed.
+//  __ ldr(r1, FieldMemOperand(r3, HeapObject::kMapOffset));
+//  __ cmp(r1, Operand(Handle<Map>(receiver->map())));
+//  __ b(ne, &miss);
+//
+//  // Perform global security token check if needed.
+//  if (receiver->IsJSGlobalProxy()) {
+//    __ CheckAccessGlobalProxy(r3, r1, &miss);
+//  }
+//
+//  // Stub never generated for non-global objects that require access
+//  // checks.
+//  ASSERT(receiver->IsJSGlobalProxy() || !receiver->IsAccessCheckNeeded());
+//
+//  __ ldr(ip, MemOperand(sp));  // receiver
+//  __ push(ip);
+//  __ push(r2);  // name
+//  __ push(r0);  // value
+//
+//  // Do tail-call to the runtime system.
+//  ExternalReference store_ic_property =
+//      ExternalReference(IC_Utility(IC::kStoreInterceptorProperty));
+//  __ TailCallRuntime(store_ic_property, 3, 1);
+//
+//  // Handle store cache miss.
+//  __ bind(&miss);
+//  __ mov(r2, Operand(Handle<String>(name)));  // restore name
+//  Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+//  __ Jump(ic, RelocInfo::CODE_TARGET);
+//
+//  // Return the generated code.
+//  return GetCode(INTERCEPTOR, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object,
+                                              JSGlobalPropertyCell* cell,
+                                              String* name) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- a0    : value
+//  //  -- a2    : name
+//  //  -- ra    : return address
+//  //  -- [sp]  : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+//  // Check that the map of the global has not changed.
+////  __ ldr(r1, MemOperand(sp, 0 * kPointerSize));
+////  __ ldr(r3, FieldMemOperand(r1, HeapObject::kMapOffset));
+////  __ cmp(r3, Operand(Handle<Map>(object->map())));
+////  __ b(ne, &miss);
+//  __ lw(a1, MemOperand(sp, 0 * kPointerSize));
+//  __ lw(a3, FieldMemOperand(a1, HeapObject::kMapOffset));
+//  __ bcond(ne, &miss, a3, Operand(Handle<Map>(object->map())));
+//  __ nop(); // NOP_ADDED
+//
+//  // Store the value in the cell.
+////  __ mov(r2, Operand(Handle<JSGlobalPropertyCell>(cell)));
+////  __ str(r0, FieldMemOperand(r2, JSGlobalPropertyCell::kValueOffset));
+//  __ li(a2, Operand(Handle<JSGlobalPropertyCell>(cell)));
+//  __ sw(a0, FieldMemOperand(a2, JSGlobalPropertyCell::kValueOffset));
+//
+//  __ IncrementCounter(&Counters::named_store_global_inline, 1, a1, a3);
+//  __ Ret();
+//  __ nop(); // NOP_ADDED
+//
+//  // Handle store cache miss.
+//  __ bind(&miss);
+////  __ IncrementCounter(&Counters::named_store_global_inline_miss, 1, r1, r3);
+////  Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+////  __ Jump(ic, RelocInfo::CODE_TARGET);
+//  __ IncrementCounter(&Counters::named_store_global_inline_miss, 1, a1, a3);
+//  Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+//  __ Jump(ic, RelocInfo::CODE_TARGET);
+//  __ nop(); // NOP_ADDED
+//
+//  // Return the generated code.
+//  return GetCode(NORMAL, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* LoadStubCompiler::CompileLoadField(JSObject* object,
+                                           JSObject* holder,
+                                           int index,
+                                           String* name) {
+  UNIMPLEMENTED();
+  __ break_(0x1063);
+//  // ----------- S t a t e -------------
+//  //  -- r2    : name
+//  //  -- lr    : return address
+//  //  -- [sp]  : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+//  __ ldr(r0, MemOperand(sp, 0));
+//
+//  GenerateLoadField(object, holder, r0, r3, r1, index, name, &miss);
+//  __ bind(&miss);
+//  GenerateLoadMiss(masm(), Code::LOAD_IC);
+//
+//  // Return the generated code.
+//  return GetCode(FIELD, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* LoadStubCompiler::CompileLoadCallback(JSObject* object,
+                                              JSObject* holder,
+                                              AccessorInfo* callback,
+                                              String* name) {
+  UNIMPLEMENTED();
+  __ break_(0x1087);
+//  // ----------- S t a t e -------------
+//  //  -- r2    : name
+//  //  -- lr    : return address
+//  //  -- [sp]  : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+//  __ ldr(r0, MemOperand(sp, 0));
+//  GenerateLoadCallback(object, holder, r0, r2, r3, r1, callback, name, &miss);
+//  __ bind(&miss);
+//  GenerateLoadMiss(masm(), Code::LOAD_IC);
+//
+//  // Return the generated code.
+//  return GetCode(CALLBACKS, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* LoadStubCompiler::CompileLoadConstant(JSObject* object,
+                                              JSObject* holder,
+                                              Object* value,
+                                              String* name) {
+  UNIMPLEMENTED();
+//  // ----------- S t a t e -------------
+//  //  -- r2    : name
+//  //  -- lr    : return address
+//  //  -- [sp] : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+////  __ ldr(r0, MemOperand(sp, 0));
+//  __ lw(a0, MemOperand(sp, 0));
+//
+////  GenerateLoadConstant(object, holder, r0, r3, r1, value, name, &miss);
+//  GenerateLoadConstant(object, holder, a0, a3, a1, value, name, &miss);
+//  __ bind(&miss);
+//  GenerateLoadMiss(masm(), Code::LOAD_IC);
+//
+//  // Return the generated code.
+//  return GetCode(CONSTANT_FUNCTION, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* object,
+                                                 JSObject* holder,
+                                                 String* name) {
+  UNIMPLEMENTED();
+  __ break_(0x1133);
+//  // ----------- S t a t e -------------
+//  //  -- r2    : name
+//  //  -- lr    : return address
+//  //  -- [sp]  : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+//  __ ldr(r0, MemOperand(sp, 0));
+//
+//  LookupResult lookup;
+//  holder->LocalLookupRealNamedProperty(name, &lookup);
+//  GenerateLoadInterceptor(object,
+//                          holder,
+//                          &lookup,
+//                          r0,
+//                          r2,
+//                          r3,
+//                          r1,
+//                          name,
+//                          &miss);
+//  __ bind(&miss);
+//  GenerateLoadMiss(masm(), Code::LOAD_IC);
+//
+//  // Return the generated code.
+//  return GetCode(INTERCEPTOR, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* LoadStubCompiler::CompileLoadGlobal(JSObject* object,
+                                            GlobalObject* holder,
+                                            JSGlobalPropertyCell* cell,
+                                            String* name,
+                                            bool is_dont_delete) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- a2    : name
+//  //  -- ra    : return address
+//  //  -- [sp]  : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+//  // Get the receiver from the stack.
+////  __ ldr(r1, MemOperand(sp, 0 * kPointerSize));
+//  __ lw(a1, MemOperand(sp, 0 * kPointerSize));
+//
+//  // If the object is the holder then we know that it's a global
+//  // object which can only happen for contextual calls. In this case,
+//  // the receiver cannot be a smi.
+//  if (object != holder) {
+////    __ tst(r1, Operand(kSmiTagMask));
+////    __ b(eq, &miss);
+//    __ andi(t0, a1, Operand(kSmiTagMask));
+//    __ bcond(eq, &miss, t0, Operand(zero_reg));
+//    __ nop();
+//  }
+//
+//  // Check that the map of the global has not changed.
+//  CheckPrototypes(object, a1, holder, a3, a0, name, &miss);
+//
+//  // Get the value from the cell.
+////  __ mov(r3, Operand(Handle<JSGlobalPropertyCell>(cell)));
+////  __ ldr(r0, FieldMemOperand(r3, JSGlobalPropertyCell::kValueOffset));
+//  __ li(a3, Operand(Handle<JSGlobalPropertyCell>(cell)));
+//  __ lw(v0, FieldMemOperand(a3, JSGlobalPropertyCell::kValueOffset));
+//
+//  // Check for deleted property if property can actually be deleted.
+//  if (!is_dont_delete) {
+////    __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
+////    __ cmp(r0, ip);
+////    __ b(eq, &miss);
+//    __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
+//    __ bcond(eq, &miss, v0, Operand(ip));
+//    __ nop(); // NOP_ADDED
+//  }
+//
+////  __ IncrementCounter(&Counters::named_load_global_inline, 1, r1, r3);
+//  __ IncrementCounter(&Counters::named_load_global_inline, 1, a1, a3);
+//  __ Ret();
+//  __ nop(); // NOP_ADDED
+//
+//  __ bind(&miss);
+////  __ IncrementCounter(&Counters::named_load_global_inline_miss, 1, r1, r3);
+//  __ IncrementCounter(&Counters::named_load_global_inline_miss, 1, a1, a3);
+//  GenerateLoadMiss(masm(), Code::LOAD_IC);
+//
+//  // Return the generated code.
+//  return GetCode(NORMAL, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadField(String* name,
+                                                JSObject* receiver,
+                                                JSObject* holder,
+                                                int index) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- ra    : return address
+//  //  -- sp[0] : key
+//  //  -- sp[4] : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+////  __ ldr(r2, MemOperand(sp, 0));
+////  __ ldr(r0, MemOperand(sp, kPointerSize));
+//  __ lw(a2, MemOperand(sp, 0));
+//  __ lw(a0, MemOperand(sp, kPointerSize));
+//
+////  __ cmp(r2, Operand(Handle<String>(name)));
+////  __ b(ne, &miss);
+//  __ bcond(ne, &miss, a2, Operand(Handle<String>(name)));
+//  __ nop(); // NOP_ADDED
+//
+////  GenerateLoadField(receiver, holder, r0, r3, r1, index, name, &miss);
+//  GenerateLoadField(receiver, holder, a0, a3, a1, index, name, &miss);
+//  __ bind(&miss);
+//  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+//
+//  return GetCode(FIELD, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadCallback(String* name,
+                                                   JSObject* receiver,
+                                                   JSObject* holder,
+                                                   AccessorInfo* callback) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- ra    : return address
+//  //  -- sp[0] : key
+//  //  -- sp[4] : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+////  __ ldr(r2, MemOperand(sp, 0));
+////  __ ldr(r0, MemOperand(sp, kPointerSize));
+//  __ lw(a2, MemOperand(sp, 0));
+//  __ lw(a0, MemOperand(sp, kPointerSize));
+//
+////  __ cmp(r2, Operand(Handle<String>(name)));
+////  __ b(ne, &miss);
+//  __ bcond(ne, &miss, a2, Operand(Handle<String>(name)));
+//  __ nop(); // NOP_ADDED
+//
+////  GenerateLoadCallback(receiver, holder, r0, r2, r3, r1, callback, name, &miss);
+//  GenerateLoadCallback(receiver, holder, a0, a2, a3, a1, callback, name, &miss);
+//  __ bind(&miss);
+//  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+//
+//  return GetCode(CALLBACKS, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadConstant(String* name,
+                                                   JSObject* receiver,
+                                                   JSObject* holder,
+                                                   Object* value) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- ra    : return address
+//  //  -- sp[0] : key
+//  //  -- sp[4] : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+//  // Check the key is the cached one
+////  __ ldr(r2, MemOperand(sp, 0));
+////  __ ldr(r0, MemOperand(sp, kPointerSize));
+//  __ lw(a2, MemOperand(sp, 0));
+//  __ lw(a0, MemOperand(sp, kPointerSize));
+//
+////  __ cmp(r2, Operand(Handle<String>(name)));
+////  __ b(ne, &miss);
+//  __ bcond(ne, &miss, a2, Operand(Handle<String>(name)));
+//  __ nop(); // NOP_ADDED
+//
+////  GenerateLoadConstant(receiver, holder, r0, r3, r1, value, name, &miss);
+//  GenerateLoadConstant(receiver, holder, a0, a3, a1, value, name, &miss);
+//  __ bind(&miss);
+//  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+//
+//  // Return the generated code.
+//  return GetCode(CONSTANT_FUNCTION, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadInterceptor(JSObject* receiver,
+                                                      JSObject* holder,
+                                                      String* name) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- ra    : return address
+//  //  -- sp[0] : key
+//  //  -- sp[4] : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+//  // Check the key is the cached one
+////  __ ldr(r2, MemOperand(sp, 0));
+////  __ ldr(r0, MemOperand(sp, kPointerSize));
+//  __ lw(a2, MemOperand(sp, 0));
+//  __ lw(a0, MemOperand(sp, kPointerSize));
+//
+////  __ cmp(r2, Operand(Handle<String>(name)));
+////  __ b(ne, &miss);
+//  __ bcond(ne, &miss, a2, Operand(Handle<String>(name)));
+//  __ nop(); // NOP_ADDED
+//
+//  LookupResult lookup;
+//  holder->LocalLookupRealNamedProperty(name, &lookup);
+//  GenerateLoadInterceptor(receiver,
+//                          holder,
+//                          &lookup,
+//                          a0,
+//                          a2,
+//                          a3,
+//                          a1,
+//                          name,
+//                          &miss);
+//  __ bind(&miss);
+//  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+//
+//  return GetCode(INTERCEPTOR, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadArrayLength(String* name) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- ra    : return address
+//  //  -- sp[0] : key
+//  //  -- sp[4] : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+//  // Check the key is the cached one
+////  __ ldr(r2, MemOperand(sp, 0));
+////  __ ldr(r0, MemOperand(sp, kPointerSize));
+//  __ lw(a2, MemOperand(sp, 0));
+//  __ lw(a0, MemOperand(sp, kPointerSize));
+//
+////  __ cmp(r2, Operand(Handle<String>(name)));
+////  __ b(ne, &miss);
+//  __ bcond(ne, &miss, a2, Operand(Handle<String>(name)));
+//  __ nop(); // NOP_ADDED
+//
+//  GenerateLoadArrayLength(masm(), a0, a3, &miss);
+//  __ bind(&miss);
+//  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+//
+//  return GetCode(CALLBACKS, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadStringLength(String* name) {
+  UNIMPLEMENTED();
+  __ break_(0x1370);
+//  // ----------- S t a t e -------------
+//  //  -- lr    : return address
+//  //  -- sp[0] : key
+//  //  -- sp[4] : receiver
+//  // -----------------------------------
+//  Label miss;
+//  __ IncrementCounter(&Counters::keyed_load_string_length, 1, r1, r3);
+//
+//  __ ldr(r2, MemOperand(sp));
+//  __ ldr(r0, MemOperand(sp, kPointerSize));  // receiver
+//
+//  __ cmp(r2, Operand(Handle<String>(name)));
+//  __ b(ne, &miss);
+//
+//  GenerateLoadStringLength2(masm(), r0, r1, r3, &miss);
+//  __ bind(&miss);
+//  __ DecrementCounter(&Counters::keyed_load_string_length, 1, r1, r3);
+//
+//  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+//
+//  return GetCode(CALLBACKS, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+// TODO(1224671): implement the fast case.
+Object* KeyedLoadStubCompiler::CompileLoadFunctionPrototype(String* name) {
+  UNIMPLEMENTED();
+  __ break_(0x1398);
+//  // ----------- S t a t e -------------
+//  //  -- lr    : return address
+//  //  -- sp[0] : key
+//  //  -- sp[4] : receiver
+//  // -----------------------------------
+//  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+//
+//  return GetCode(CALLBACKS, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
+                                                  int index,
+                                                  Map* transition,
+                                                  String* name) {
+  UNIMPLEMENTED();
+  __ break_(0x1415);
+//  // ----------- S t a t e -------------
+//  //  -- a0    : value
+//  //  -- a2    : name
+//  //  -- ra    : return address
+//  //  -- [sp]  : receiver
+//  // -----------------------------------
+//  Label miss;
+//
+//  __ IncrementCounter(&Counters::keyed_store_field, 1, a1, a3);
+//
+//  // Check that the name has not changed.
+////  __ cmp(r2, Operand(Handle<String>(name)));
+////  __ b(ne, &miss);
+//  __ bcond(ne, &miss, a2, Operand(Handle<String>(name)));
+//  __ nop(); // NOP_ADDED
+//
+//  // Load receiver from the stack.
+////  __ ldr(r3, MemOperand(sp));
+//  __ lw(a3, MemOperand(sp));
+//  // a1 is used as scratch register, a3 and a2 might be clobbered.
+//  GenerateStoreField(masm(),
+//                     Builtins::StoreIC_ExtendStorage,
+//                     object,
+//                     index,
+//                     transition,
+//                     a3, a2, a1,
+//                     &miss);
+//  __ bind(&miss);
+//
+//  __ DecrementCounter(&Counters::keyed_store_field, 1, a1, a3);
+////  __ mov(r2, Operand(Handle<String>(name)));  // restore name register.
+//  __ li(a2, Operand(Handle<String>(name)));  // restore name register.
+//  Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Miss));
+//  __ Jump(ic, RelocInfo::CODE_TARGET);
+//  __ nop(); // NOP_ADDED
+//
+//  // Return the generated code.
+//  return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+Object* ConstructStubCompiler::CompileConstructStub(
+    SharedFunctionInfo* shared) {
+  UNIMPLEMENTED();
+//#ifdef DEBUG
+////  printf("ConstructStubCompiler::CompileConstructStub\n");
+//#endif
+//  // ----------- S t a t e -------------
+//  //  -- a0    : argc
+//  //  -- a1    : constructor
+//  //  -- ra    : return address
+//  //  -- [sp]  : last argument
+//  // -----------------------------------
+//  Label generic_stub_call;
+//
+//  // Use t7 for holding undefined which is used in several places below.
+//  __ LoadRoot(t7, Heap::kUndefinedValueRootIndex);
+//
+//#ifdef ENABLE_DEBUGGER_SUPPORT
+//  // Check to see whether there are any break points in the function code. If
+//  // there are jump to the generic constructor stub which calls the actual
+//  // code for the function thereby hitting the break points.
+////  __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
+////  __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kDebugInfoOffset));
+////  __ cmp(r2, r7);
+////  __ b(ne, &generic_stub_call);
+//  __ lw(t5, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
+//  __ lw(a2, FieldMemOperand(t5, SharedFunctionInfo::kDebugInfoOffset));
+//  __ bcond(ne, &generic_stub_call, a2, Operand(t7));
+//  __ nop(); // NOP_ADDED
+//#endif
+//
+//  // Load the initial map and verify that it is in fact a map.
+//  // a1: constructor function
+//  // t7: undefined
+////  __ ldr(r2, FieldMemOperand(r1, JSFunction::kPrototypeOrInitialMapOffset));
+////  __ tst(r2, Operand(kSmiTagMask));
+////  __ b(eq, &generic_stub_call);
+////  __ CompareObjectType(r2, r3, r4, MAP_TYPE);
+////  __ b(ne, &generic_stub_call);
+//  __ lw(a2, FieldMemOperand(a1, JSFunction::kPrototypeOrInitialMapOffset));
+//  __ andi(t0, a2, Operand(kSmiTagMask));
+//  __ bcond(eq, &generic_stub_call, t0, Operand(zero_reg));
+//  __ nop(); // NOP_ADDED
+//  __ GetObjectType(a2, a3, t0);
+//  __ bcond(ne, &generic_stub_call, t0, Operand(MAP_TYPE));
+//  __ nop(); // NOP_ADDED
+//
+//#ifdef DEBUG
+//  // Cannot construct functions this way.
+//  // a0: argc
+//  // a1: constructor function
+//  // a2: initial map
+//  // t7: undefined
+////  __ CompareInstanceType(r2, r3, JS_FUNCTION_TYPE);
+////  __ Check(ne, "Function constructed by construct stub.");
+//  __ lbu(a3, FieldMemOperand(a2, Map::kInstanceTypeOffset));
+//  __ Check(ne, "Function constructed by construct stub.", a3, Operand(JS_FUNCTION_TYPE));
+//#endif
+//
+//  // Now allocate the JSObject in new space.
+//  // a0: argc
+//  // a1: constructor function
+//  // a2: initial map
+//  // t7: undefined
+////  __ ldrb(r3, FieldMemOperand(r2, Map::kInstanceSizeOffset));
+//  __ lbu(a3, FieldMemOperand(a2, Map::kInstanceSizeOffset));
+//  __ AllocateInNewSpace(a3,
+//                        t4,
+//                        t5,
+//                        t6,
+//                        &generic_stub_call,
+//                        NO_ALLOCATION_FLAGS);
+//
+//  // Allocated the JSObject, now initialize the fields. Map is set to initial
+//  // map and properties and elements are set to empty fixed array.
+//  // a0: argc
+//  // a1: constructor function
+//  // a2: initial map
+//  // a3: object size (in words)
+//  // t4: JSObject (not tagged)
+//  // r7: undefined
+////  __ LoadRoot(r6, Heap::kEmptyFixedArrayRootIndex);
+////  __ mov(r5, r4);
+////  ASSERT_EQ(0 * kPointerSize, JSObject::kMapOffset);
+////  __ str(r2, MemOperand(r5, kPointerSize, PostIndex));
+////  ASSERT_EQ(1 * kPointerSize, JSObject::kPropertiesOffset);
+////  __ str(r6, MemOperand(r5, kPointerSize, PostIndex));
+////  ASSERT_EQ(2 * kPointerSize, JSObject::kElementsOffset);
+////  __ str(r6, MemOperand(r5, kPointerSize, PostIndex));
+//  __ LoadRoot(t6, Heap::kEmptyFixedArrayRootIndex);
+//  __ mov(t5, t4);
+//  __ sw(a2, MemOperand(t5, JSObject::kMapOffset));
+//  __ sw(t6, MemOperand(t5, JSObject::kPropertiesOffset));
+//  __ sw(t6, MemOperand(t5, JSObject::kElementsOffset));
+//  ASSERT_EQ(0 * kPointerSize, JSObject::kMapOffset);
+//  ASSERT_EQ(1 * kPointerSize, JSObject::kPropertiesOffset);
+//  ASSERT_EQ(2 * kPointerSize, JSObject::kElementsOffset);
+//
+//  __ addiu(t5, t5, Operand(3 * kPointerSize));
+//
+//  // Calculate the location of the first argument. The stack contains only the
+//  // argc arguments.
+////  __ add(r1, sp, Operand(r0, LSL, kPointerSizeLog2));
+//  __ sll(a1, a0, kPointerSizeLog2);
+//  __ addu(a1, a1, Operand(sp));
+//
+//  // We need to add the 4 args slots size because they need to be setup when we
+//  // call the real time function the first time this kind of object is
+//  // initialized (cf Builtins::Generate_JSConstructStubGeneric).
+//  // TOCHECK: This need is maybe just because I first implemented it with args
+//  // slots. Try to do it without: we should not need this as the real time
+//  // function called has the stack setup just before it is called.
+//  __ addiu(a1, a1, StandardFrameConstants::kRArgsSlotsSize);
+//
+//  // Fill all the in-object properties with undefined.
+//  // a0: argc
+//  // a1: first argument
+//  // a3: object size (in words)
+//  // t4: JSObject (not tagged)
+//  // t5: First in-object property of JSObject (not tagged)
+//  // t7: undefined
+//  // Fill the initialized properties with a constant value or a passed argument
+//  // depending on the this.x = ...; assignment in the function.
+//  for (int i = 0; i < shared->this_property_assignments_count(); i++) {
+//    if (shared->IsThisPropertyAssignmentArgument(i)) {
+//      Label not_passed, next;
+//      // Check if the argument assigned to the property is actually passed.
+//      int arg_number = shared->GetThisPropertyAssignmentArgument(i);
+////      __ cmp(r0, Operand(arg_number));
+////      __ b(le, &not_passed);
+//      __ bcond(less_equal, &not_passed, a0, Operand(arg_number));
+//      __ nop(); // NOP_ADDED
+//      // Argument passed - find it on the stack.
+////      __ ldr(r2, MemOperand(r1, (arg_number + 1) * -kPointerSize));
+////      __ str(r2, MemOperand(r5, kPointerSize, PostIndex));
+////      __ b(&next);
+////      __ bind(&not_passed);
+//      __ lw(a2, MemOperand(a1, (arg_number + 1) * -kPointerSize));
+//      __ sw(a2, MemOperand(t5));
+//      __ addiu(t5, t5, Operand(kPointerSize));
+//      __ b(&next);
+//      __ nop(); // NOP_ADDED
+//      __ bind(&not_passed);
+//      // Set the property to undefined.
+////      __ str(r7, MemOperand(r5, kPointerSize, PostIndex));
+//      __ sw(t7, MemOperand(t5));
+//      __ addiu(t5, t5, Operand(kPointerSize));
+//      __ bind(&next);
+//    } else {
+//      // Set the property to the constant value.
+//      Handle<Object> constant(shared->GetThisPropertyAssignmentConstant(i));
+////      __ mov(r2, Operand(constant));
+////      __ str(r2, MemOperand(r5, kPointerSize, PostIndex));
+//      __ li(a2, Operand(constant));
+//      __ sw(a2, MemOperand(t5));
+//      __ addiu(t5, t5, Operand(kPointerSize));
+//    }
+//  }
+//
+//  // Fill the unused in-object property fields with undefined.
+//  for (int i = shared->this_property_assignments_count();
+//       i < shared->CalculateInObjectProperties();
+//       i++) {
+////      __ str(r7, MemOperand(r5, kPointerSize, PostIndex));
+//      __ sw(t7, MemOperand(t5));
+//      __ addiu(t5, t5, Operand(kPointerSize));
+//  }
+//
+//  // a0: argc
+//  // t4: JSObject (not tagged)
+//  // Move argc to a1 and the JSObject to return to v0 and tag it.
+////  __ mov(r1, r0);
+////  __ mov(r0, r4);
+////  __ orr(r0, r0, Operand(kHeapObjectTag));
+//  __ mov(a1, a0);
+//  __ mov(v0, t4);
+//  __ or_(v0, v0, Operand(kHeapObjectTag));
+//
+//  // v0: JSObject
+//  // a1: argc
+//  // Remove caller arguments and receiver from the stack and return.
+////  __ add(sp, sp, Operand(r1, LSL, kPointerSizeLog2));
+////  __ add(sp, sp, Operand(kPointerSize));
+////  __ IncrementCounter(&Counters::constructed_objects, 1, r1, r2);
+////  __ IncrementCounter(&Counters::constructed_objects_stub, 1, r1, r2);
+////  __ Jump(lr);
+//  __ sll(t0, a1, kPointerSizeLog2);
+//  __ add(sp, sp, Operand(t0));
+//  __ addi(sp, sp, Operand(kPointerSize));
+//  __ IncrementCounter(&Counters::constructed_objects, 1, a1, a2);
+//  __ IncrementCounter(&Counters::constructed_objects_stub, 1, a1, a2);
+//  __ Jump(ra);
+//  __ nop(); // NOP_ADDED
+//
+//  // Jump to the generic stub in case the specialized code cannot handle the
+//  // construction.
+//  __ bind(&generic_stub_call);
+//  Code* code = Builtins::builtin(Builtins::JSConstructStubGeneric);
+//  Handle<Code> generic_construct_stub(code);
+//  __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET);
+//  __ nop(); // NOP_ADDED
+//
+//  // Return the generated code.
+//  return GetCode();
+  return (Object*)NULL;   // UNIMPLEMENTED RETURN
+}
+
+
+#undef __
+
+} }  // namespace v8::internal