gcc/testsuite/gcc.target/i386/pr24306.c

   1 /* { dg-do run } */
   2 /* { dg-options "-msse" } */
   3
   4 extern void abort(void);
   5 typedef int __attribute__ ((vector_size (16))) foo_t;
   6
   7 struct s
   8 {
   9   foo_t f[0];
  10 } s1;
  11
  12 void
  13 check (int x, ...) __attribute__((noinline));
  14 void
  15 check (int x, ...)
  16 {
  17   int y;
  18   __builtin_va_list ap;
  19
  20   __builtin_va_start (ap, x);
  21   __builtin_va_arg (ap, struct s);
  22   y = __builtin_va_arg (ap, int);
  23
  24   if (y != 7)
  25     abort ();
  26 }
  27
  28 int main()
  29 {
  30   check (3, s1, 7);
  31   return 0;
  32 }