1  /* Test generic __atomic routines for proper function calling.
       2     memory model.  */
       3  /* { dg-options "-w" } */
       4  /* { dg-do run } */
       5  
       6  /* Test that the generioc atomic builtins execute as expected..
       7     sync-mem-generic-aux.c supplies a functional external entry point for 
       8     the 4 generic functions.  */
       9  
      10  #include <stdlib.h>
      11  #include <stdbool.h>
      12  #include <string.h>
      13  
      14  extern void abort();
      15  
      16  typedef struct test {
      17    int array[10];
      18  } test_struct;
      19  
      20  test_struct zero = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
      21  test_struct ones = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
      22  test_struct a,b;
      23  
      24  int size = sizeof (test_struct);
      25  /* Test for consistency on sizes 1, 2, 4, 8, 16 and 32.  */
      26  int
      27  main ()
      28  {
      29    test_struct c;
      30  
      31    __atomic_store (&a, &zero, __ATOMIC_RELAXED);
      32    if (memcmp (&a, &zero, size))
      33      abort ();
      34  
      35    __atomic_exchange (&a, &ones, &c, __ATOMIC_SEQ_CST);
      36    if (memcmp (&c, &zero, size))
      37      abort ();
      38    if (memcmp (&a, &ones, size))
      39      abort ();
      40  
      41    __atomic_load (&a, &b, __ATOMIC_RELAXED);
      42    if (memcmp (&b, &ones, size))
      43      abort ();
      44  
      45    if (!__atomic_compare_exchange (&a, &b, &zero, false, __ATOMIC_SEQ_CST, __ATOMIC_ACQUIRE))
      46      abort();
      47    if (memcmp (&a, &zero, size))
      48      abort ();
      49  
      50    if (__atomic_compare_exchange (&a, &b, &ones, false, __ATOMIC_SEQ_CST, __ATOMIC_ACQUIRE))
      51      abort();
      52    if (memcmp (&b, &zero, size))
      53      abort ();
      54  
      55    return 0;
      56  }
      57