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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [atomic-exchange-4.c] - Rev 801

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/* Test __atomic routines for existence and proper execution on 8 byte 
   values with each valid memory model.  */
/* { dg-do run } */
/* { dg-require-effective-target sync_long_long_runtime } */
/* { dg-options "" } */
/* { dg-options "-march=pentium" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
 
/* Test the execution of the __atomic_X builtin for a long_long.  */
 
extern void abort(void);
 
long long v, count, ret;
 
main ()
{
  v = 0;
  count = 0;
 
  if (__atomic_exchange_n (&v, count + 1, __ATOMIC_RELAXED) !=  count++) 
    abort ();
 
  if (__atomic_exchange_n (&v, count + 1, __ATOMIC_ACQUIRE) !=  count++) 
    abort ();
 
  if (__atomic_exchange_n (&v, count + 1, __ATOMIC_RELEASE) !=  count++) 
    abort ();
 
  if (__atomic_exchange_n (&v, count + 1, __ATOMIC_ACQ_REL) !=  count++) 
    abort ();
 
  if (__atomic_exchange_n (&v, count + 1, __ATOMIC_SEQ_CST) !=  count++) 
    abort ();
 
  /* Now test the generic version.  */
 
  count++;
 
  __atomic_exchange (&v, &count, &ret, __ATOMIC_RELAXED);
  if (ret != count - 1 || v != count)
    abort ();
  count++;
 
  __atomic_exchange (&v, &count, &ret, __ATOMIC_ACQUIRE);
  if (ret != count - 1 || v != count)
    abort ();
  count++;
 
  __atomic_exchange (&v, &count, &ret, __ATOMIC_RELEASE);
  if (ret != count - 1 || v != count)
    abort ();
  count++;
 
  __atomic_exchange (&v, &count, &ret, __ATOMIC_ACQ_REL);
  if (ret != count - 1 || v != count)
    abort ();
  count++;
 
  __atomic_exchange (&v, &count, &ret, __ATOMIC_SEQ_CST);
  if (ret != count - 1 || v != count)
    abort ();
  count++;
 
  return 0;
}
 

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