message: Fix a tfprof bug. Throws an error when the flops cannot be calculated.
diff: @@ -373,6 +373,7 @@ def _max_pool_grad_flops(graph, node):
  kernel_area = _list_product(kernel_shape)
  orig_out_shape = graph_util.tensor_shape_from_node_def_name(graph,
  node.input[1])
  + orig_out_shape.assert_is_fully_defined()
  max_pool_ops = kernel_area * orig_out_shape.num_elements()
  return ops.OpStats("flops", max_pool_ops + orig_out_shape.num_elements())
  