message: Minor refactor: move unused_min / unused_max variables to the smallest scope possible.
diff: @@ -500,9 +500,9 @@ inline void LstmStepHybrid(
  // For each batch and cell: compute input_weight * input.
  // Skip if input is all zeros.
  if (!tensor_utils::IsZeroVector(input_ptr, n_batch * n_input)) {
  - float unused_min, unused_max;
  for (int b = 0; b < n_batch; ++b) {
  const int offset = b * n_input;
  + float unused_min, unused_max;
  tensor_utils::SymmetricQuantizeFloats(
  input_ptr + offset, n_input, quantized_input_ptr + offset,
  &unused_min, &unused_max, &scaling_factors[b]);
  @@ -549,9 +549,9 @@ inline void LstmStepHybrid(
  // Skip if auxiliary input is not available or all zeros.
  if (aux_input_ptr != nullptr &&
  !tensor_utils::IsZeroVector(aux_input_ptr, n_batch * n_aux_input)) {
  - float unused_min, unused_max;
  for (int b = 0; b < n_batch; ++b) {
  const int offset = b * n_aux_input;
  + float unused_min, unused_max;
  tensor_utils::SymmetricQuantizeFloats(
  aux_input_ptr + offset, n_aux_input, quantized_aux_input_ptr + offset,
  &unused_min, &unused_max, &scaling_factors[b]);
  @@ -597,9 +597,9 @@ inline void LstmStepHybrid(
  if (!tensor_utils::IsZeroVector(output_state_ptr, n_batch * n_output)) {
  // Save quantization and matmul computation for all zero input.
  - float unused_min, unused_max;
  for (int b = 0; b < n_batch; ++b) {
  const int offset = b * n_output;
  + float unused_min, unused_max;
  tensor_utils::SymmetricQuantizeFloats(output_state_ptr + offset, n_output,
  quantized_output_state_ptr + offset,
  &unused_min, &unused_max,
  @@ -761,9 +761,9 @@ inline void LstmStepHybrid(
  }
  if (!tensor_utils::IsZeroVector(output_gate_scratch, n_batch * n_cell)) {
  // Save quantization and matmul computation for all zero input.
  - float unused_min, unused_max;
  for (int b = 0; b < n_batch; ++b) {
  const int offset = b * n_cell;
  + float unused_min, unused_max;
  tensor_utils::SymmetricQuantizeFloats(
  output_gate_scratch + offset, n_cell,
  quantized_cell_state_ptr + offset, &unused_min, &unused_max,
  