gcc/testsuite/gcc.dg/tree-ssa/loop-40.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-ch2-details" } */
   3
   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" } } */