{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"\"addcarryx.u32\""}]}
                    "addcarryx.u32" => "__builtin_ia32_addcarryx_u32",
                    "addcarry.u64" => "__builtin_ia32_addcarry_u64",
                    "addcarryx.u64" => "__builtin_ia32_addcarryx_u64",