{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"\"altivec.vextsw2d\""}]}
                    "altivec.vextsw2d" => "__builtin_altivec_vextsw2d",
                    "altivec.vextsh2w" => "__builtin_altivec_vextsh2w",
                    "altivec.vgbbd" => "__builtin_altivec_vgbbd",