1 /* { dg-do compile } */
2 /* { dg-options "-O2 -ftree-loop-linear" } */
3 /* { dg-require-effective-target size32plus } */
4 
foo()5 int foo()
6 {
7   int x[2][2], y[2];
8   int i, n, s;
9 
10   /* This is a reduction: there is a scalar dependence that cannot be
11      removed by rewriting IVs.  This code cannot and should not be
12      transformed into a perfect loop.  */
13   for (n = 0; n < 2; n++)
14     {
15       s = 0;
16       for (i = 0; i < 2; i++)
17         s += x[n][i]*y[i];
18       s += 1;
19     }
20 
21   return s;
22 }
23