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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [atomic-lockfree.c] - Blame information for rev 749

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Line No. Rev Author Line
1 689 jeremybenn 
/* Test __atomic routines for existence and execution with each valid
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   memory model.  */
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/* { dg-options "-w" } */
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/* { dg-do run } */
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/* { dg-additional-sources "atomic-lockfree-aux.c" } */
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/* Test that __atomic_{is,always}_lock_free builtins execute.
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   sync-mem-lockfree-aux.c supplies and external entry point for
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   __atomic_is_lock_free which always returns a 2. We can detect the
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   external routine was called if 2 is returned since that is not a valid
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   result normally.  */
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#include <stdlib.h>
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extern void abort();
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int r1, r2;
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/* Test for consistency on sizes 1, 2, 4, 8, 16 and 32.  */
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main ()
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{
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  r1 = __atomic_always_lock_free (sizeof(char), 0);
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  r2 = __atomic_is_lock_free (sizeof(char), 0);
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  /* If always lock free, then is_lock_free must also be true.  */
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  if (r1)
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    {
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      if (r2 != 1)
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        abort ();
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    }
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  else
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    {
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      /* If it is not lock free, then the external routine must be called.  */
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      if (r2 != 2)
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        abort ();
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    }
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  r1 = __atomic_always_lock_free (2, 0);
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  r2 = __atomic_is_lock_free (2, 0);
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  /* If always lock free, then is_lock_free must also be true.  */
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  if (r1)
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    {
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      if (r2 != 1)
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        abort ();
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    }
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  else
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    {
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      /* If it is not lock free, then the external routine must be called.  */
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      if (r2 != 2)
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        abort ();
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    }
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  r1 = __atomic_always_lock_free (4, 0);
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  r2 = __atomic_is_lock_free (4, 0);     /* Try passing in a variable.  */
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  /* If always lock free, then is_lock_free must also be true.  */
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  if (r1)
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    {
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      if (r2 != 1)
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        abort ();
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    }
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  else
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    {
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      /* If it is not lock free, then the external routine must be called.  */
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      if (r2 != 2)
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        abort ();
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    }
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  r1 = __atomic_always_lock_free (8, 0);
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  r2 = __atomic_is_lock_free (8, 0);
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  /* If always lock free, then is_lock_free must also be true.  */
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  if (r1)
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    {
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      if (r2 != 1)
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        abort ();
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    }
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  else
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    {
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      /* If it is not lock free, then the external routine must be called.  */
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      if (r2 != 2)
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        abort ();
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    }
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  r1 = __atomic_always_lock_free (16, 0);
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  r2 = __atomic_is_lock_free (16, 0);
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  /* If always lock free, then is_lock_free must also be true.  */
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  if (r1)
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    {
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      if (r2 != 1)
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        abort ();
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    }
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  else
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    {
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      /* If it is not lock free, then the external routine must be called.  */
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      if (r2 != 2)
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        abort ();
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    }
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  r1 = __atomic_always_lock_free (32, 0);
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  r2 = __atomic_is_lock_free (32, 0);
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  /* If always lock free, then is_lock_free must also be true.  */
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  if (r1)
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    {
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      if (r2 != 1)
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        abort ();
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    }
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  else
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    {
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      /* If it is not lock free, then the external routine must be called.  */
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      if (r2 != 2)
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        abort ();
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    }
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  return 0;
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}
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