Small improvement to TANH/Sigmoid implementation.

Change-Id: Ia9fa7e70e15a5174a045ee5f98cf4f78e6a43ef6
feihugis · Nov 28, 2019 · 279f926 · 279f926
1 parent a858c19
commit 279f926
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/tensorflow/lite/kernels/activations.cc b/tensorflow/lite/kernels/activations.cc
@@ -312,7 +312,7 @@ void EvalUsingLookupTableTanh16Bit(struct OpData* data, const TfLiteTensor* inpu
     int32_t input_data = *ptr_input_data;
 
     if (data->input_left_shift == 1) {
-      input_data = gemmlowp::SaturatingRoundingMultiplyByPOT<1>(input_data);
+      input_data <<= 1;
     }
 
     // Scale by 3/4 to expand range [-8,8]->[-10.7,10.7].