Documentation/litmus-tests/atomic/Atomic-RMW-ops-are-atomic-WRT-atomic_set.litmus

   1 C Atomic-RMW-ops-are-atomic-WRT-atomic_set
   2
   3 (*
   4  * Result: Never
   5  *
   6  * Test that atomic_set() cannot break the atomicity of atomic RMWs.
   7  * NOTE: This requires herd7 7.56 or later which supports "(void)expr".
   8  *)
   9
  10 {
  11         atomic_t v = ATOMIC_INIT(1);
  12 }
  13
  14 P0(atomic_t *v)
  15 {
  16         (void)atomic_add_unless(v, 1, 0);
  17 }
  18
  19 P1(atomic_t *v)
  20 {
  21         atomic_set(v, 0);
  22 }
  23
  24 exists
  25 (v=2)