mirror of
https://github.com/autc04/Retro68.git
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57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
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/* Test generic __atomic routines for proper function calling.
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memory model. */
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/* { dg-options "-w" } */
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/* { dg-do run } */
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/* Test that the generioc atomic builtins execute as expected..
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sync-mem-generic-aux.c supplies a functional external entry point for
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the 4 generic functions. */
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#include <stdlib.h>
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#include <stdbool.h>
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extern void abort();
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typedef struct test {
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int array[10];
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} test_struct;
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test_struct zero = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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test_struct ones = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
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test_struct a,b;
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int size = sizeof (test_struct);
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/* Test for consistency on sizes 1, 2, 4, 8, 16 and 32. */
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int
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main ()
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{
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test_struct c;
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__atomic_store (&a, &zero, __ATOMIC_RELAXED);
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if (memcmp (&a, &zero, size))
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abort ();
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__atomic_exchange (&a, &ones, &c, __ATOMIC_SEQ_CST);
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if (memcmp (&c, &zero, size))
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abort ();
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if (memcmp (&a, &ones, size))
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abort ();
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__atomic_load (&a, &b, __ATOMIC_RELAXED);
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if (memcmp (&b, &ones, size))
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abort ();
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if (!__atomic_compare_exchange (&a, &b, &zero, false, __ATOMIC_SEQ_CST, __ATOMIC_ACQUIRE))
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abort();
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if (memcmp (&a, &zero, size))
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abort ();
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if (__atomic_compare_exchange (&a, &b, &ones, false, __ATOMIC_SEQ_CST, __ATOMIC_ACQUIRE))
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abort();
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if (memcmp (&b, &zero, size))
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abort ();
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return 0;
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}
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