{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"RiscV(RiscVInlineAsmRegClass::freg)"}]}
            RiscV(RiscVInlineAsmRegClass::freg) => "f",
            RiscV(RiscVInlineAsmRegClass::reg) => "r",
            RiscV(RiscVInlineAsmRegClass::vreg) => unreachable!("clobber-only"),