// Start final link command line.
	// Note: code below knows that link.p[targ] is the target.
	var (
		link      []string
		targ      int
		ispackcmd bool
	)
	if ispkg {
		// Go library (package).
		ispackcmd = true
		link = []string{"pack", packagefile(pkg)}
		targ = len(link) - 1
		xmkdirall(filepath.Dir(link[targ]))
	} else {
		// Go command.
		elem := name
		if elem == "go" {

	if nlines := len(parts) - 1; nlines < 1 {
		fatalf("Error running %s: output contains <1 lines\n%s", cmd, cmd.Stderr)
	}
	t.cgoEnabled, _ = strconv.ParseBool(parts[0])

	if flag.NArg() > 0 && t.runRxStr != "" {
		fatalf("the -run regular expression flag is mutually exclusive with test name arguments")
	}

	t.runNames = flag.Args()

      return errors::InvalidArgument("Output permutation has incorrect size.");
    }
    for (auto& arg : args_by_src_) {
      arg.second = input_permutation[arg.second];
    }
    for (auto& arg : args_by_dst_) {
      arg.second = input_permutation[arg.second];
    }
    for (auto& result : results_) {
      result.second = output_permutation[result.second];
    }

	nargs := make([]string, 0, len(args)+len(extraArgs))
	for _, arg := range args {
		if !strings.HasPrefix(arg, "-O") {
			nargs = append(nargs, arg)
		}
	}

	// Force -O0 optimization and append extra arguments, but keep the
	// trailing "-" at the end.
	li := len(nargs) - 1
	last := nargs[li]
	nargs[li] = "-O0"
	nargs = append(nargs, extraArgs...)

      "XlaSpmdShardToFullShape",
      "XlaSvd",
      "XlaVariadicReduce",
      "XlaVariadicReduceV2",
      "XlaVariadicSort",
      "XlaWhile",
      "Zeta",
      "_Arg",
      "_ArrayToList",
      "_ListToArray",
      "_Retval"};
  return result;
}

}  // namespace testing

}

TEST(XlaCompilationTest, DontCountIdentityOps) {
  std::unique_ptr<Graph> graph(new Graph(OpRegistry::Global()));
  Scope root = Scope::NewRootScope().ExitOnError();
  {
    auto a = ops::_Arg(root.WithOpName("A"), DT_INT32, 0);
    auto b = ops::Identity(root.WithOpName("B"), a);
    auto c = ops::Identity(root.WithOpName("C"), b);
    auto r = ops::_Retval(root.WithOpName("R"), c, 0);
  }

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