message: Add a test for Scatter without atomics.
diff: @@ -225,6 +225,36 @@ ENTRY main {
  RunTest(hlo_text, &operand, &scatter_indices, &updates);
  }
  +XLA_TEST_F(ScatterTest, TensorFlowScatter_Add_NoAtomic) {
  + const string hlo_text = R"(
  +HloModule TensorFlowScatter_Add
  +
  +add_s32 (lhs: s32[], rhs: s32[]) -> s32[] {
  + lhs = s32[] parameter(0)
  + rhs = s32[] parameter(1)
  + ROOT add = s32[] add(s32[] lhs, s32[] rhs)
  +}
  +
  +ENTRY main {
  + operand = s32[3,3] parameter(0)
  + indices = s32[2] parameter(1)
  + updates = s32[2,3] parameter(2)
  + ROOT scatter = s32[3,3] scatter(operand, indices, updates),
  + to_apply=add_s32,
  + update_window_dims={1},
  + inserted_window_dims={0},
  + scatter_dims_to_operand_dims={0},
  + index_vector_dim=1,
  + use_atomic=false
  +}
  +)";
  + Literal operand =
  + LiteralUtil::CreateR2<int32>({{1, 2, 3}, {4, 5, 6}, {7, 8, 9}});
  + Literal scatter_indices = LiteralUtil::CreateR1<int32>({0, 2});
  + Literal updates = LiteralUtil::CreateR2<int32>({{10, 20, 30}, {70, 80, 90}});
  + RunTest(hlo_text, &operand, &scatter_indices, &updates);
  +}
  +
  XLA_TEST_F(ScatterTest, TensorFlowScatter_Mul) {
  const string hlo_text = R"(
  HloModule TensorFlowScatter_Mul
  