// expected-error @+1 {{requires orig_input to be rank 4}}
  %result = "tf.MaxPoolGrad"(%orig_input, %orig_output, %grad) {
     data_format = "NHWC",
     ksize = [1, 2, 2, 1],
     padding = "VALID",
     strides = [1, 2, 2, 1]
  } : (tensor<f32>, tensor<10x12x12x64xf32>, tensor<10x12x12x64xf32>) -> tensor<10x24x24x64xf32>