cbalint13 commented on a change in pull request #6675:
URL: https://github.com/apache/incubator-tvm/pull/6675#discussion_r503732613



##########
File path: src/relay/qnn/op/requantize.cc
##########
@@ -155,17 +155,20 @@ Expr RequantizeLower(const Expr& input_tensor, const 
Expr& input_scale,
     if (!IsEqualScalar(input_scale, output_scale)) {
       int32_t fixed_point_multiplier, shift;
       std::tie(fixed_point_multiplier, shift) = 
GetFixedPointMultiplierShift(double_multiplier);
-
       const bool is_upward_rounding = (param->rounding == "UPWARD");
 
-      // When using upward rounding (i.e., x.5 rounded to x+1), leverage
-      // the FixedPointMultiply operator
-      scaled_int32_t =
-          (is_upward_rounding
-               ? FixedPointMultiply(scaled_int32_t, fixed_point_multiplier, 
shift)
-               : FixedPointMultiplyToNearest(scaled_int32_t, 
double_multiplier, input_shape));
+      if (is_upward_rounding && fixed_point_multiplier == (1 << 30)) {

Review comment:
       @anijain2305 , can add a small one line comment regarding (1<<30) ? 
These days aside from ```float32``` many other types of ```float``` floats 
around. 




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