Viewing file:  atomic-generic.c (1.31 KB) -rw-r--r--
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/* Test generic __atomic routines for proper function calling.
memory model. */
/* { dg-options "-w" } */
/* { dg-do run } */
/* Test that the generioc atomic builtins execute as expected..
sync-mem-generic-aux.c supplies a functional external entry point for
the 4 generic functions. */
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
extern void abort();
typedef struct test {
int array[10];
} test_struct;
test_struct zero = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
test_struct ones = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
test_struct a,b;
int size = sizeof (test_struct);
/* Test for consistency on sizes 1, 2, 4, 8, 16 and 32. */
int
main ()
{
test_struct c;
__atomic_store (&a, &zero, __ATOMIC_RELAXED);
if (memcmp (&a, &zero, size))
abort ();
__atomic_exchange (&a, &ones, &c, __ATOMIC_SEQ_CST);
if (memcmp (&c, &zero, size))
abort ();
if (memcmp (&a, &ones, size))
abort ();
__atomic_load (&a, &b, __ATOMIC_RELAXED);
if (memcmp (&b, &ones, size))
abort ();
if (!__atomic_compare_exchange (&a, &b, &zero, false, __ATOMIC_SEQ_CST, __ATOMIC_ACQUIRE))
abort();
if (memcmp (&a, &zero, size))
abort ();
if (__atomic_compare_exchange (&a, &b, &ones, false, __ATOMIC_SEQ_CST, __ATOMIC_ACQUIRE))
abort();
if (memcmp (&b, &zero, size))
abort ();
return 0;
}
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