tcc-65816/test/strange/dg/transparent-union-5.c
2017-06-09 13:52:12 +02:00

38 lines
519 B
C

/* PR 24255 */
/* { dg-do run } */
/* { dg-options "-O" } */
extern void abort (void);
union wait { int w_status; };
typedef union
{
union wait *uptr;
int *iptr;
} WAIT_STATUS __attribute__ ((__transparent_union__));
int status;
union wait wstatus;
void __attribute__((noinline))
test1 (WAIT_STATUS s)
{
if (s.iptr != &status)
abort ();
}
void __attribute__((noinline))
test2 (WAIT_STATUS s)
{
if (s.uptr != &wstatus)
abort ();
}
int main()
{
test1 (&status);
test2 (&wstatus);
return 0;
}