}
};
-EXTERN_TEMPLATE_INSTANTIATION(class RegionBase<RegionTraits<MachineFunction>>);
-EXTERN_TEMPLATE_INSTANTIATION(class RegionNodeBase<RegionTraits<MachineFunction>>);
-EXTERN_TEMPLATE_INSTANTIATION(class RegionInfoBase<RegionTraits<MachineFunction>>);
-
+extern template class RegionBase<RegionTraits<MachineFunction>>;
+extern template class RegionNodeBase<RegionTraits<MachineFunction>>;
+extern template class RegionInfoBase<RegionTraits<MachineFunction>>;
}
#endif