//   [H, W, ..., filter_in_depth, G, out_depth / G].
      auto new_shape = llvm::to_vector<6>(filter_shape);
      new_shape.back() = feature_group_count;
      new_shape.push_back(filter_shape.back() / feature_group_count);
      Type filter_element_ty = filter_ty.getElementType();
      auto ty =
          tensorflow::GetTypeFromTFTensorShape(new_shape, filter_element_ty);