loop unroll question

[Revital Eres]

Hello,

For mainline on power-pc 4 with the option -O3 -funroll-loops, 
the following loop is not unrolled, but in GCC 3.4 it is. 
Also for mainline the bct is not inserted, but again in GCC 3.4 
it is.

void
example_new(int a[],int b[],int c[], int j) 
{
    int i;

    for(i=0 ; i<=j ; i++) 
       {
          c[i]=a[i]+b[i];
       }
    return;
}

If the condition is changed to < (instead of <=) the unrolling is 
done as expected and bct is inserted.

Thanks,
Revital