gcc-4_9-branch/gcc/testsuite/gcc.target/ia64/float80-varargs-1.c

   1 /* Test for a bug with passing __float80 in varargs.  The __float80
   2    value was wrongly passed, leading to an abort.  */
   3 /* Origin: Joseph Myers <joseph@codesourcery.com> */
   4 /* { dg-do run } */
   5 /* { dg-options "" } */
   6
   7 #include <stdarg.h>
   8
   9 extern void abort (void);
  10 extern void exit (int);
  11
  12 __float80 s = 1.234L;
  13 __float80 d;
  14
  15 void vf (int a0, ...);
  16
  17 int
  18 main (void)
  19 {
  20   vf (0, s);
  21   if (d != s)
  22     abort ();
  23   exit (0);
  24 }
  25
  26 void
  27 vf (int a0, ...)
  28 {
  29   va_list ap;
  30   va_start (ap, a0);
  31   d = va_arg (ap, __float80);
  32   va_end (ap);
  33 }