{"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"PowerPC(PowerPCInlineAsmRegClass::reg_nonzero)"}]}
            PowerPC(PowerPCInlineAsmRegClass::reg_nonzero) => "b",
            PowerPC(PowerPCInlineAsmRegClass::reg) => "r",
            PowerPC(PowerPCInlineAsmRegClass::freg) => "f",