2715   struct AttrClass {  struct
2716     const AttrClassDescriptor &Descriptor;
2717     Record *TheRecord;
2718     AttrClass *SuperClass = nullptr;
2719     std::vector<AttrClass*> SubClasses;
2720     std::vector<Record*> Attrs;
2722     AttrClass(const AttrClassDescriptor &Descriptor, Record *R)  in AttrClass()  function
2725     void emitDefaultDefines(raw_ostream &OS) const {  in emitDefaultDefines()
2733     void emitUndefs(raw_ostream &OS) const {  in emitUndefs()
2737     void emitAttrList(raw_ostream &OS) const {  in emitAttrList()
2745     void classifyAttrOnRoot(Record *Attr) {  in classifyAttrOnRoot()
2750     void emitAttrRange(raw_ostream &OS) const {  in emitAttrRange()
2757     bool classifyAttr(Record *Attr) {  in classifyAttr()
2773     Record *getFirstAttr() const {  in getFirstAttr()
2779     Record *getLastAttr() const {  in getLastAttr()