gcc/testsuite/gcc.dg/atomic-noinline.c

   1 /* Test generic __atomic routines for proper function calling.
   2    memory model.  */
   3 /* { dg-options "-w -fno-inline-atomics" } */
   4 /* { dg-do run } */
   5 /* { dg-additional-sources "atomic-noinline-aux.c" } */
   6
   7 /* Test that -fno-inline-atomics works as expected.
   8    atomic-generic-aux provide the expected routines which simply set the
   9    value of the first parameter to */
  10
  11 #include <stdlib.h>
  12 #include <stdbool.h>
  13
  14 extern void abort();
  15
  16 short as,bs,cs;
  17 char ac,bc,cc;
  18
  19 main ()
  20 {
  21
  22   ac = __atomic_exchange_n (&bc, cc, __ATOMIC_RELAXED);
  23   if (bc != 1)
  24     abort ();
  25
  26   as = __atomic_load_n (&bs, __ATOMIC_SEQ_CST);
  27   if (bs != 1)
  28     abort ();
  29
  30   __atomic_store_n (&ac, bc, __ATOMIC_RELAXED);
  31   if (ac != 1)
  32     abort ();
  33
  34   __atomic_compare_exchange_n (&as, &bs, cs, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
  35   if (as != 1)
  36     abort ();
  37
  38   ac = __atomic_fetch_add (&cc, 15, __ATOMIC_SEQ_CST);
  39   if (cc != 1)
  40     abort ();
  41
  42   /* This should be translated to __atomic_fetch_add for the library */
  43   as = __atomic_add_fetch (&cs, 10, __ATOMIC_RELAXED);
  44
  45   if (cs != 1)
  46     abort ();
  47
  48   /* The fake external function should return 10.  */
  49   if (__atomic_is_lock_free (4, 0) != 10)
  50     abort ();
  51
  52   /* PR 51040 was caused by arithmetic code not patching up nand_fetch properly
  53      when used an an external function.  Look for proper return value here.  */
  54   ac = 0x3C;
  55   bc = __atomic_nand_fetch (&ac, 0x0f, __ATOMIC_RELAXED);
  56   if (bc != ac)
  57     abort ();
  58
  59   return 0;
  60 }
  61
  62
  63