2926   struct AttrClass {  struct
2927     const AttrClassDescriptor &Descriptor;
2928     Record *TheRecord;
2929     AttrClass *SuperClass = nullptr;
2930     std::vector<AttrClass*> SubClasses;
2931     std::vector<Record*> Attrs;
2933     AttrClass(const AttrClassDescriptor &Descriptor, Record *R)  in AttrClass()  function
2936     void emitDefaultDefines(raw_ostream &OS) const {  in emitDefaultDefines()
2944     void emitUndefs(raw_ostream &OS) const {  in emitUndefs()
2948     void emitAttrList(raw_ostream &OS) const {  in emitAttrList()
2956     void classifyAttrOnRoot(Record *Attr) {  in classifyAttrOnRoot()
2961     void emitAttrRange(raw_ostream &OS) const {  in emitAttrRange()
2968     bool classifyAttr(Record *Attr) {  in classifyAttr()
2984     Record *getFirstAttr() const {  in getFirstAttr()
2990     Record *getLastAttr() const {  in getLastAttr()