%0, %1 = "tf.Unique"(%arg0) : (tensor<5xf32>) -> (tensor<?xf32>, tensor<?xi32>)
    func.return %0, %1 : tensor<?xf32> , tensor<?xi32>
  }

  // CHECK-LABEL: @erfinv
  func.func @erfinv(%input: tensor<4xf32>) -> tensor<4xf32> {
    // CHECK-NOT: tf.Erfinv
    %0 = "tf.Erfinv"(%input) : (tensor<4xf32>) -> tensor<4xf32>
    func.return %0 : tensor<4xf32>
  }

  // CHECK-LABEL: @ndtri

    if (pos != string::npos) {
      result = result.substr(pos + 1);
    }
  }
  return result;
}

string GetFilename(StringPiece path) {
  size_t slash_pos = path.rfind('/');
  if (slash_pos == path.npos) slash_pos = -1;
  size_t dot_pos = path.rfind('.');
  return string(path.substr(slash_pos + 1, dot_pos - (slash_pos + 1)));
}

string ToGuard(StringPiece path) {
  string guard;