{"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"Nvptx(NvptxInlineAsmRegClass::reg16)"}]}
            Nvptx(NvptxInlineAsmRegClass::reg16) => "h",
            Mips(MipsInlineAsmRegClass::freg) => "f",
            Nvptx(NvptxInlineAsmRegClass::reg32) => "r",