gcc/testsuite/gcc.dg/lto/20090706-1_0.c

   1 #include <stdarg.h>
   2
   3 extern void abort (void);
   4
   5 void foo (int size, ...)
   6 {
   7   struct
   8     {
   9       struct
  10         {
  11           char x[size];
  12         } e;
  13       unsigned r;
  14     } d;
  15   va_list ap;
  16   char c;
  17   int i;
  18
  19   va_start (ap, size);
  20   d = va_arg (ap, typeof (d));
  21   c = d.e.x[3];
  22   if (c != '3')
  23     abort ();
  24   if (d.r != 2602)
  25     abort ();
  26   va_end (ap);
  27 }
  28
  29 int main (void)
  30 {
  31   int z = 5, i;
  32   struct { struct { char a[z]; } y; unsigned r; } x;
  33
  34   x.y.a[0] = '0';
  35   x.y.a[1] = '1';
  36   x.y.a[2] = '2';
  37   x.y.a[3] = '3';
  38   x.y.a[4] = '4';
  39   x.r = 2602;
  40   foo (z, x);
  41   return 0;
  42 }