LB+poonceonces.litmus

 1C LB+poonceonces
 2
 3(*
 4 * Result: Sometimes
 5 *
 6 * Can the counter-intuitive outcome for the load-buffering pattern
 7 * be prevented even with no explicit ordering?
 8 *)
 9
10{}
11
12P0(int *x, int *y)
13{
14	int r0;
15
16	r0 = READ_ONCE(*x);
17	WRITE_ONCE(*y, 1);
18}
19
20P1(int *x, int *y)
21{
22	int r0;
23
24	r0 = READ_ONCE(*y);
25	WRITE_ONCE(*x, 1);
26}
27
28exists (0:r0=1 /\ 1:r0=1)