gcc/testsuite/gcc.dg/tree-ssa/copy-headers-4.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-ch2-details" } */
   3
   4 int *a, *b;
   5 int test(int n, int k)
   6 {
   7   int it = 0;
   8   do
   9     {
  10       if (it % k == 1)
  11         a[it] = 0;
  12       else
  13         b[it] = 1;
  14     }
  15   while (++it < n);
  16 }
  17
  18 /* { dg-final { scan-tree-dump-not "is not do-while loop" "ch2" } } */