1  /* { dg-do compile } */
       2  /* { dg-options "-O3 -Warray-bounds -fno-tree-vectorize -fdump-tree-cunroll-details" } */
       3  int a[3];
       4  int b[4];
       5  int
       6  foo (int n)
       7  {
       8    int i;
       9    for (i=0;i<n;i++)
      10      if (b[i]==2)
      11       a[i]++;
      12  }
      13  /* { dg-final { scan-tree-dump-times "Forced statement unreachable" 2 "cunroll" } } */