gcc/testsuite/gcc.dg/tree-ssa/loop-17.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-sccp-details" } */
   3
   4 /* To determine the number of iterations in this loop we need to fold
   5    p_4 + 4B > p_4 + 8B to false.  This transformation has caused
   6    troubles in the past due to overflow issues.  */
   7
   8 int foo (int *p)
   9 {
  10   int i = 0, *x;
  11
  12   for (x = p; x < p + 2; x++)
  13     i++;
  14
  15   return i;
  16 }
  17
  18 /* { dg-final { scan-tree-dump "set_nb_iterations_in_loop = 2" "sccp" } } */
  19 /* { dg-final { cleanup-tree-dump "sccp" } } */