{"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"\"qpx.qvfsub\""}]}
                    "qpx.qvfsub" => "__builtin_qpx_qvfsub",
                    "qpx.qvfsel" => "__builtin_qpx_qvfsel",
                    "qpx.qvfsubs" => "__builtin_qpx_qvfsubs",