for (int64_t i = 0; i < input_rank; ++i) {
    int64_t input_size = input_shape[i];
    int64_t start_index =
        constant_start_indices.getValues<IntegerAttr>()[i].getInt();
    int64_t slice_size = slice_sizes.getValues<IntegerAttr>()[i].getInt();
    normalized_sizes.push_back(slice_size == -1 ? input_size - start_index
                                                : slice_size);
  }