{"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"\"qpx.qvfsubs\""}]}
                    "qpx.qvfsubs" => "__builtin_qpx_qvfsubs",
                    "qpx.qvfsub" => "__builtin_qpx_qvfsub",
                    "qpx.qvftstnan" => "__builtin_qpx_qvftstnan",