{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"Sparc(SparcInlineAsmRegClass::reg)"}]}
            Sparc(SparcInlineAsmRegClass::reg) => "r",
            }
            Sparc(SparcInlineAsmRegClass::yreg) => unreachable!("clobber-only"),