{"ast_node_type":"variable","tokens":[{"end":70,"kind":"keyword","start":0,"text":"let"}]}
            let cmp = fx.lib_call("memcmp", params, returns, args)[0];
            // Here we assume that the `memcmp` provided by the target is a NOP for size 0.
            ret.write_cvalue(fx, CValue::by_val(cmp, ret.layout()));