gcc/testsuite/gcc.dg/pr78965.c

   1 /* PR tree-optimization/78965 */
   2 /* { dg-do run { target c99_runtime } } */
   3 /* { dg-options "-O2" } */
   4 /* { dg-add-options c99_runtime } */
   5
   6 int
   7 main ()
   8 {
   9   int a = 5, b = 6;
  10   int c = __builtin_snprintf (0, 0, "a%nb%nc", &a, &b);
  11   if (a + b + c != 6)
  12     __builtin_abort ();
  13   return 0;
  14 }