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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [atomic-compare-exchange-4.c] - Blame information for rev 801

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Line No. Rev Author Line
1 689 jeremybenn
/* Test __atomic routines for existence and proper execution on 8 byte
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   values with each valid memory model.  */
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/* { dg-do run } */
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/* { dg-require-effective-target sync_long_long_runtime } */
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/* { dg-options "" } */
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/* { dg-options "-march=pentium" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
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/* Test the execution of __atomic_compare_exchange_n builtin for a long_long.  */
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extern void abort(void);
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long long v = 0;
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long long expected = 0;
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long long max = ~0;
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long long desired = ~0;
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long long zero = 0;
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#define STRONG 0
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#define WEAK 1
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main ()
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{
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  if (!__atomic_compare_exchange_n (&v, &expected, max, STRONG , __ATOMIC_RELAXED, __ATOMIC_RELAXED))
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    abort ();
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  if (expected != 0)
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    abort ();
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  if (__atomic_compare_exchange_n (&v, &expected, 0, STRONG , __ATOMIC_ACQUIRE, __ATOMIC_RELAXED))
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    abort ();
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  if (expected != max)
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    abort ();
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  if (!__atomic_compare_exchange_n (&v, &expected, 0, STRONG , __ATOMIC_RELEASE, __ATOMIC_ACQUIRE))
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    abort ();
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  if (expected != max)
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    abort ();
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  if (v != 0)
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    abort ();
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  if (__atomic_compare_exchange_n (&v, &expected, desired, WEAK, __ATOMIC_ACQ_REL, __ATOMIC_ACQUIRE))
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    abort ();
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  if (expected != 0)
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    abort ();
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  if (!__atomic_compare_exchange_n (&v, &expected, desired, STRONG , __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST))
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    abort ();
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  if (expected != 0)
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    abort ();
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  if (v != max)
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    abort ();
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  /* Now test the generic version.  */
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  v = 0;
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  if (!__atomic_compare_exchange (&v, &expected, &max, STRONG, __ATOMIC_RELAXED, __ATOMIC_RELAXED))
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    abort ();
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  if (expected != 0)
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    abort ();
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  if (__atomic_compare_exchange (&v, &expected, &zero, STRONG , __ATOMIC_ACQUIRE, __ATOMIC_RELAXED))
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    abort ();
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  if (expected != max)
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    abort ();
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  if (!__atomic_compare_exchange (&v, &expected, &zero, STRONG , __ATOMIC_RELEASE, __ATOMIC_ACQUIRE))
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    abort ();
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  if (expected != max)
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    abort ();
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  if (v != 0)
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    abort ();
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  if (__atomic_compare_exchange (&v, &expected, &desired, WEAK, __ATOMIC_ACQ_REL, __ATOMIC_ACQUIRE))
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    abort ();
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  if (expected != 0)
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    abort ();
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  if (!__atomic_compare_exchange (&v, &expected, &desired, STRONG , __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST))
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    abort ();
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  if (expected != 0)
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    abort ();
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  if (v != max)
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    abort ();
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  return 0;
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}

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