gcc/testsuite/gcc.c-torture/execute/pr64979.c

   1 /* PR target/64979 */
   2
   3 #include <stdarg.h>
   4
   5 void __attribute__((noinline, noclone))
   6 bar (int x, va_list *ap)
   7 {
   8   if (ap)
   9     {
  10       int i;
  11       for (i = 0; i < 10; i++)
  12         if (i != va_arg (*ap, int))
  13           __builtin_abort ();
  14       if (va_arg (*ap, double) != 0.5)
  15         __builtin_abort ();
  16     }
  17 }
  18
  19 void __attribute__((noinline, noclone))
  20 foo (int x, ...)
  21 {
  22   va_list ap;
  23   int n;
  24
  25   va_start (ap, x);
  26   n = va_arg (ap, int);
  27   bar (x, (va_list *) ((n == 0) ? ((void *) 0) : &ap));
  28   va_end (ap);
  29 }
  30
  31 int
  32 main ()
  33 {
  34   foo (100, 1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0.5);
  35   return 0;
  36 }