I am working on the TIDM6437 and had the following questions:
1.
for(i=0;i<N;i+=4)
{
//do something
}
N values can be 0, 8, 16, 24,...,720 which means the trip count is 0, 2, 4, 6, .., 180. I use #pragma MUST_ITERATE(0, 180, 2) to improve the loop execution time. After looking at the optimizer comments it seems that the loop unroll is 2x (as intended) but the known minimum trip count is 1. Also the minimum safe trip count is 1 (after unrolling). Does this mean I cannot safely use this piece of code for N=0 i.e. no loop?
2.
for(i=0;i<N;i++)
{
//do something
}
N values can be 0, 1, 2, 3,...,7 which means the trip count is 0, 1, 2, 3, .., 7. I use #pragma MUST_ITERATE(0, 7, 1) . After looking at the optimizer comments it seems that the known minimum trip count is 1. Also the minimum safe trip count is 1. Does this mean I cannot safely use this piece of code for N=0 i.e. no loop?
Thanks
Deepak
