gcc/testsuite/gcc.dg/torture/pr53272-1.c

   1 /* { dg-do run } */
   2 /* { dg-additional-sources "pr53272-2.c" } */
   3 struct rtc_class_ops {
   4  int (*f)(void *, unsigned int enabled);
   5 };
   6
   7 struct rtc_device
   8 {
   9  void *owner;
  10  const struct rtc_class_ops *ops;
  11  int ops_lock;
  12 };
  13
  14 __attribute__ ((__noinline__, __noclone__))
  15 extern int foo(void *);
  16 __attribute__ ((__noinline__, __noclone__))
  17 extern void foobar(void *);
  18
  19 __attribute__ ((__noinline__, __noclone__))
  20 int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled)
  21 {
  22  int err;
  23  asm volatile ("");
  24
  25  err = foo(&rtc->ops_lock);
  26
  27  if (err)
  28   return err;
  29
  30  if (!rtc->ops)
  31   err = -19;
  32  else if (!rtc->ops->f)
  33   err = -22;
  34  else
  35   err = rtc->ops->f(rtc->owner, enabled);
  36
  37  foobar(&rtc->ops_lock);
  38  return err;
  39 }