about LNO

[Ziang Hu <hu@xxxxxxxxxxxxxxxxxxx>]

Hi, 

I tried to test the effect of LNO with Pro64. The code is as follows:

     ...     
     for (i=0; i<1000; i++)
        for (j=0; j<1000; j++)
            a[i][j] = a[i][j] + a[i-1][j];
     ...

With -O3, no loop interchange happened.

How about LNO with C programs ?

Thanks

Ziang