// Just create a constant to replace its uses.
  tensorflow::Tensor scalar_tensor(tensorflow::DT_FLOAT, {});
  scalar_tensor.scalar<float>()() = 0.0f;
  auto flow = builder.create<TF::ConstOp>(
      ta.getLoc(), tensorflow::ConvertTensor(scalar_tensor, &builder).value());
  ta.getFlow().replaceAllUsesWith(flow);
  ta.erase();
  (*stats)[local_var].accumulate_on_write = false;

  TFE_TensorHandle* scalar = TestScalarTensorHandle(tfe_context_, five);
  TF_Tensor* scalarTensor = TFE_TensorHandleResolve(scalar, status_);
  CHECK_EQ(TF_OK, TF_GetCode(status_)) << TF_Message(status_);
  CheckOutputShapes(fill_op,
                    /* input_shapes*/ {unknown_shape(), unknown_shape()},
                    /* input_tensors*/ {tensor_1X1X6, scalarTensor},
                    /*expected_shape*/ make_shape({1, 1, 6}));