Track representations of fields

src/code-stubs-hydrogen.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 349 matching lines @@
        flags | HAllocate::CAN_ALLOCATE_IN_OLD_POINTER_SPACE);
   }
   HInstruction* object =
       AddInstruction(new(zone) HAllocate(context(),
                                          size_in_bytes,
                                          HType::JSObject(),
                                          flags));
 
   for (int i = 0; i < size; i += kPointerSize) {
     HInstruction* value =
-        AddInstruction(new(zone) HLoadNamedField(boilerplate, true, i));
+        AddInstruction(new(zone) HLoadNamedField(
+            boilerplate, true, Representation::Tagged(), i));
     AddInstruction(new(zone) HStoreNamedField(object,
                                               factory->empty_string(),
-                                              value,
-                                              true, i));
+                                              value, true,
+                                              Representation::Tagged(), i));
   }
 
   checker.ElseDeopt();
   return object;
 }
 
 
 Handle<Code> FastCloneShallowObjectStub::GenerateCode() {
   return DoGenerateCode(this);
 }
@@ skipping 68 matching lines @@
 
   BuildCopyElements(context(), elements,
                     casted_stub()->from_kind(), new_elements,
                     to_kind, array_length, elements_length);
 
   Factory* factory = isolate()->factory();
 
   AddInstruction(new(zone) HStoreNamedField(js_array,
                                             factory->elements_field_string(),
                                             new_elements, true,
+                                            Representation::Tagged(),
                                             JSArray::kElementsOffset));
 
   if_builder.End();
 
   AddInstruction(new(zone) HStoreNamedField(js_array, factory->length_string(),
-                                            map, true, JSArray::kMapOffset));
+                                            map, true,
+                                            Representation::Tagged(),
+                                            JSArray::kMapOffset));
   return js_array;
 }
 
 
 Handle<Code> TransitionElementsKindStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
 
 template <>
@@ skipping 32 matching lines @@
   current_block()->MarkAsDeoptimizing();
   return GetParameter(0);
 }
 
 
 Handle<Code> ArrayNArgumentsConstructorStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
 } }  // namespace v8::internal