1  /* Test generic __atomic routines for proper function calling.
       2     memory model.  */
       3  /* { dg-options "-w" } */
       4  /* { dg-do run } */
       5  /* { dg-additional-sources "atomic-generic-aux.c" } */
       6  
       7  /* Test that the generioc atomic builtins execute as expected..
       8     sync-mem-generic-aux.c supplies a functional external entry point for 
       9     the 4 generic functions.  */
      10  
      11  #include <stdlib.h>
      12  #include <stdbool.h>
      13  #include <string.h>
      14  
      15  extern void abort();
      16  
      17  typedef struct test {
      18    int array[10];
      19  } test_struct;
      20  
      21  test_struct zero = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
      22  test_struct ones = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
      23  test_struct a,b;
      24  
      25  int size = sizeof (test_struct);
      26  /* Test for consistency on sizes 1, 2, 4, 8, 16 and 32.  */
      27  int
      28  main ()
      29  {
      30    test_struct c;
      31  
      32    __atomic_store (&a, &zero, __ATOMIC_RELAXED);
      33    if (memcmp (&a, &zero, size))
      34      abort ();
      35  
      36    __atomic_exchange (&a, &ones, &c, __ATOMIC_SEQ_CST);
      37    if (memcmp (&c, &zero, size))
      38      abort ();
      39    if (memcmp (&a, &ones, size))
      40      abort ();
      41  
      42    __atomic_load (&a, &b, __ATOMIC_RELAXED);
      43    if (memcmp (&b, &ones, size))
      44      abort ();
      45  
      46    if (!__atomic_compare_exchange (&a, &b, &zero, false, __ATOMIC_SEQ_CST, __ATOMIC_ACQUIRE))
      47      abort();
      48    if (memcmp (&a, &zero, size))
      49      abort ();
      50  
      51    if (__atomic_compare_exchange (&a, &b, &ones, false, __ATOMIC_SEQ_CST, __ATOMIC_ACQUIRE))
      52      abort();
      53    if (memcmp (&b, &zero, size))
      54      abort ();
      55  
      56    return 0;
      57  }
      58