{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"\"perm\""}]}
                    "perm" => "__builtin_amdgcn_perm",
                    "msad.u8" => "__builtin_amdgcn_msad_u8",
                    "permlane16.var" => "__builtin_amdgcn_permlane16_var",