{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"\"xtest\""}]}
                    "xtest" => "__builtin_ia32_xtest",
                    "xsusldtrk" => "__builtin_ia32_xsusldtrk",
                    _ => unimplemented!("***** unsupported LLVM intrinsic {full_name}"),