{"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"InlineAsmRegClass::RiscV(RiscVInlineAsmRegClass::vreg)"}]}
        InlineAsmRegClass::RiscV(RiscVInlineAsmRegClass::vreg) => {
        InlineAsmRegClass::RiscV(RiscVInlineAsmRegClass::freg) => "f",
            unreachable!("clobber-only")