3121   int unused_property_fields = new_map->unused_property_fields() - 1;  in CopyWithField()  local
3122   if (unused_property_fields < 0) {  in CopyWithField()
3123     unused_property_fields += JSObject::kFieldsAdded;  in CopyWithField()
3125   new_map->set_unused_property_fields(unused_property_fields);  in CopyWithField()
3163   int target_unused = target->unused_property_fields();  in InstancesNeedRewriting()
3265         (old_map->unused_property_fields() > 0 &&  in MigrateFastToFast()
3274     if (old_map->unused_property_fields() > 0) {  in MigrateFastToFast()
3287     int grow_by = new_map->unused_property_fields() + 1;  in MigrateFastToFast()
3316   int unused = new_map->unused_property_fields();  in MigrateFastToFast()
3684         int unused_property_fields = new_map->unused_property_fields() - 1;  in CopyGeneralizeAllRepresentations()  local
3685         if (unused_property_fields < 0) {  in CopyGeneralizeAllRepresentations()
3686           unused_property_fields += JSObject::kFieldsAdded;  in CopyGeneralizeAllRepresentations()
3688         new_map->set_unused_property_fields(unused_property_fields);  in CopyGeneralizeAllRepresentations()
5964                                  int unused_property_fields,  in MigrateSlowToFast()  argument
6020     DCHECK_LE(unused_property_fields, inobject_props);  in MigrateSlowToFast()
6035       number_of_fields + unused_property_fields - inobject_props;  in MigrateSlowToFast()
6039     unused_property_fields = inobject_props - number_of_fields;  in MigrateSlowToFast()
6097   new_map->set_unused_property_fields(unused_property_fields);  in MigrateSlowToFast()
8998                                 int unused_property_fields) {  in CopyInitialMap()  argument
9020   result->set_unused_property_fields(unused_property_fields);  in CopyInitialMap()
9030               in_object_properties - unused_property_fields);  in CopyInitialMap()
9043     result->set_unused_property_fields(map->unused_property_fields());  in CopyDropDescriptors()
9244   int unused_property_fields = parent->unused_property_fields();  in InstallDescriptors()  local
9247     unused_property_fields = parent->unused_property_fields() - 1;  in InstallDescriptors()
9248     if (unused_property_fields < 0) {  in InstallDescriptors()
9249       unused_property_fields += JSObject::kFieldsAdded;  in InstallDescriptors()
9252   child->set_unused_property_fields(unused_property_fields);  in InstallDescriptors()
9343                           initial_map->unused_property_fields());  in AsLanguageMode()
12487   int slack = map->unused_property_fields();  in GetMinInobjectSlack()
12497   map->set_unused_property_fields(map->unused_property_fields() - slack);  in ShrinkInstanceSize()
12513   int slack = unused_property_fields();  in CompleteInobjectSlackTracking()
13141                           constructor_initial_map->unused_property_fields();  in GetDerivedMap()
13148       int unused_property_fields = in_object_properties - pre_allocated;  in GetDerivedMap()  local
13151                               in_object_properties, unused_property_fields);  in GetDerivedMap()
13974   if (unused_property_fields() == 0) return;  in StartInobjectSlackTracking()