{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"\"altivec.vextsh2d\""}]}
                    "altivec.vextsh2d" => "__builtin_altivec_vextsh2d",
                    "altivec.vextsd2q" => "__builtin_altivec_vextsd2q",
                    "altivec.vextsh2w" => "__builtin_altivec_vextsh2w",