File: atomic-store-5.c

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gcc-arm-none-eabi 15%3A14.2.rel1-1
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/* Test __atomic routines for existence and proper execution on 16 byte 
   values with each valid memory model.  */
/* { dg-do run } */
/* { dg-require-effective-target sync_int_128_runtime } */
/* { dg-options "-mcx16" { target { i?86-*-* x86_64-*-* } } } */

/* Test the execution of the __atomic_store_n builtin for a 16 byte value.  */

extern void abort(void);

__int128_t v, count;

int
main ()
{
  v = 0;
  count = 0;

  __atomic_store_n (&v, count + 1, __ATOMIC_RELAXED);
  if (v != ++count)
    abort ();

  __atomic_store_n (&v, count + 1, __ATOMIC_RELEASE);
  if (v != ++count)
    abort ();

  __atomic_store_n (&v, count + 1, __ATOMIC_SEQ_CST);
  if (v != ++count)
    abort ();

  /* Now test the generic variant.  */
  count++;

  __atomic_store (&v, &count, __ATOMIC_RELAXED);
  if (v != count++)
    abort ();

  __atomic_store (&v, &count, __ATOMIC_RELEASE);
  if (v != count++)
    abort ();

  __atomic_store (&v, &count, __ATOMIC_SEQ_CST);
  if (v != count)
    abort ();


  return 0;
}