MULALU		R1, R2, (R4, R3)     // 9231a4e0
	MULALU.S	R1, R2, (R4, R3)     // 9231b4e0

// MUL
	MUL	R2, R3, R4           // 930204e0
	MUL	R2, R4               // 940204e0
	MUL	R2, R4, R4           // 940204e0
	MUL.S	R2, R3, R4           // 930214e0
	MUL.S	R2, R4               // 940214e0
	MUL.S	R2, R4, R4           // 940214e0
	MULU	R5, R6, R7           // 960507e0
	MULU	R5, R7               // 970507e0

  EXPECT_EQ(2, product[0]);
  EXPECT_EQ(4, product[1]);
  EXPECT_EQ(6, product[2]);
  EXPECT_EQ(8, product[3]);

  // When we turn on grappler, confirm that the tf.Add has been rewritten into a
  // tf.Mul.
  // This capability of checking the executed op names is currently only enabled
  // for TFRT debug build, for performance and simplicity reasons.
  if (use_tfrt) {
    TF_Buffer* buf = TF_NewBuffer();

TEST_F(CApiGradientsTest, MultipleCallsToAddGradients) {
  const float X = 3.0f, Y = 7.0f;
  TF_Operation* x = Placeholder(graph_, s_, "x", TF_FLOAT);
  TF_Operation* y = Placeholder(graph_, s_, "y", TF_FLOAT);
  TF_Operation* xy = Mul(x, y, graph_, s_, "xy");
  TF_Output dxy_dx, dxy_dy;

  TF_Output outputs[1] = {{xy, 0}};
  TF_Output inputs[1] = {{x, 0}};
  TF_AddGradients(graph_, outputs, 1, inputs, 1, nullptr, s_, &dxy_dx);