Description
This message is to inform the user that the code is violating loop unrolling optimization rules
Explanation
If the tool could not estimate the loop-bound, then it would not be possible for the tool to generate the number of parallel ops. The following is an example that fails the optimization:
// var is from the input which goes till estimated 128
for(int i=0;i<var;i++)
{
#pragma HLS unroll
...
...
}Solution
If the user knows the loop bound, then it is advised to use it for the loop bound for the loop unrolling optimization.