{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"\"read.warpid\""}]}
                    "read.warpid" => "__builtin_ptx_read_warpid",
                    "read.smid" => "__builtin_ptx_read_smid",
                    _ => unimplemented!("***** unsupported LLVM intrinsic {full_name}"),