1 /* { dg-do compile } */
2 /* { dg-options "-O2 -fdump-tree-ch2-details" } */
3 
mymax2(int * it,int * end)4 int mymax2(int *it, int *end)
5 {
6   int max = *it;
7   while (++it != end)
8     if (*it > max)
9       max = *it;
10   return max;
11 }
12 
13 /* { dg-final { scan-tree-dump "Duplicating header" "ch2" } } */
14