{"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"\"copy.u.w\""}]}
                    "copy.u.w" => "__builtin_msa_copy_u_w",
                    "copy.u.h" => "__builtin_msa_copy_u_h",
                    "ctcmsa" => "__builtin_msa_ctcmsa",