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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [atomic-exchange-3.c] - Rev 753
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/* Test __atomic routines for existence and proper execution on 4 byte values with each valid memory model. */ /* { dg-do run } */ /* { dg-require-effective-target sync_int_long } */ /* Test the execution of the __atomic_X builtin for an int. */ extern void abort(void); int 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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