gcc/testsuite/gcc.c-torture/execute/pr38151.c

   1 /* { dg-options "-Wno-psabi" } */
   2 /* { dg-require-effective-target int32plus } */
   3 void abort (void);
   4
   5 struct S2848
   6 {
   7   unsigned int a;
   8   _Complex int b;
   9   struct
  10   {
  11   } __attribute__ ((aligned)) c;
  12 };
  13
  14 struct S2848 s2848;
  15
  16 int fails;
  17
  18 void  __attribute__((noinline))
  19 check2848va (int z, ...)
  20 {
  21   struct S2848 arg;
  22   __builtin_va_list ap;
  23
  24   __builtin_va_start (ap, z);
  25
  26   arg = __builtin_va_arg (ap, struct S2848);
  27
  28   if (s2848.a != arg.a)
  29     ++fails;
  30   if (s2848.b != arg.b)
  31     ++fails;
  32
  33   __builtin_va_end (ap);
  34 }
  35
  36 int main (void)
  37 {
  38   s2848.a = 4027477739U;
  39   s2848.b = (723419448 + -218144346 * __extension__ 1i);
  40
  41   check2848va (1, s2848);
  42
  43   if (fails)
  44     abort ();
  45
  46   return 0;
  47 }
  48