Output shape = ops::Add(s.WithOpName("shape"), shape_a, shape_b);

  Output reshape_input = ops::Placeholder(s.WithOpName("reshape_input"),
                                          DT_FLOAT, ops::Placeholder::Attrs{});
  Output reshape = ops::Reshape(s.WithOpName("reshape"), reshape_input, shape);

  AddToCluster({shape.node(), reshape.node()}, "cluster_0");

  const int64_t flat_size = input_type.getNumElements();
  const int64_t width = flat_size / depth;
  SmallVector<int64_t, 4> input_new_shape({1, 1, width, depth});
  auto reshaped_input =
      InsertReshapeOp(fc_op.getLoc(), input, input_type.getElementType(),
                      input_new_shape, &rewriter);

  // Insert a reshape after the weight.