atomic_store_explicit(&q->nodes[node].next, tmp, relaxed);
while (!success) {
-
- /**
- @Begin
- @Commit_point_clear: true
- @Label: Enqueue_Clear
- @End
- */
/**** UL & inadmissible ****/
tail = atomic_load_explicit(&q->tail, acquire);
/****FIXME: miss ****/
unsigned int ptr = get_ptr(atomic_load_explicit(&q->nodes[get_ptr(tail)].next, acquire));
pointer value = MAKE_POINTER(ptr,
get_count(tail) + 1);
- /****FIXME: miss ****/
+ /**** SPEC (sequential, testcase2.c) ****/
// Second release can be just relaxed
bool succ = false;
succ = atomic_compare_exchange_strong_explicit(&q->tail,
}
}
}
- /**** UL & Inadmissible ****/
+ /**** UL & Inadmissible (main.c) ****/
// Second release can be just relaxed
bool succ = atomic_compare_exchange_strong_explicit(&q->tail,
&tail,
@Label: Dequeue_Clear
@End
*/
- /**** Inadmissible ****/
+
+ /**** Inadmissible (main.c) ****/
head = atomic_load_explicit(&q->head, acquire);
/**
@Begin
* relaxed (it introduces a bug when there's two dequeuers and one
* enqueuer) correctness bug!!
*/
+ /**** SPEC (sequential) (testcase1.c) ****/
/**** New bug ****/
tail = atomic_load_explicit(&q->tail, acquire);
/**** SPEC Error (testcase1.c) ****/
next = atomic_load_explicit(&q->nodes[get_ptr(head)].next, acquire);
- /**
- @Begin
- @Potential_commit_point_define: true
- @Label: DequeueReadNext
- @End
- */
if (atomic_load_explicit(&q->head, relaxed) == head) {
if (get_ptr(head) == get_ptr(tail)) {
if (get_ptr(next) == 0) { // NULL
return false; // NULL
}
- /**** FIXME: miss ****/
+ /**** SPEC (sequential testcase3.c) ****/
// Second release can be just relaxed
bool succ = false;
succ = atomic_compare_exchange_strong_explicit(&q->tail,
&tail,
MAKE_POINTER(get_ptr(next), get_count(tail) + 1),
- release, relaxed);
+ release, relaxed);
if (succ) {
//printf("miss4_dequeue CAS succ\n");
}
} else {
//value = load_32(&q->nodes[get_ptr(next)].value);
value = q->nodes[get_ptr(next)].value;
- /**** inadmissibility ****/
+ /**** inadmissibility (main.c) ****/
success = atomic_compare_exchange_strong_explicit(&q->head,
&head,
MAKE_POINTER(get_ptr(next), get_count(head) + 1),
@Label: DequeueUpdateHead
@End
*/
-
- /**
- @Begin
- @Commit_point_define: success
- @Potential_commit_point_label: DequeueReadNext
- @Label: DequeueReadNextVerify
- @End
- */
if (!success)
thrd_yield();
}