{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"\"altivec.vextsd2q\""}]}
                    "altivec.vextsd2q" => "__builtin_altivec_vextsd2q",
                    "altivec.vextsb2w" => "__builtin_altivec_vextsb2w",
                    "altivec.vextsh2d" => "__builtin_altivec_vextsh2d",