1C CoRR+poonceonce+Once
2
3(*
4 * Result: Never
5 *
6 * Test of read-read coherence, that is, whether or not two successive
7 * reads from the same variable are ordered.
8 *)
9
10{
11	int x;
12}
13
14P0(int *x)
15{
16	WRITE_ONCE(*x, 1);
17}
18
19P1(int *x)
20{
21	int r0;
22	int r1;
23
24	r0 = READ_ONCE(*x);
25	r1 = READ_ONCE(*x);
26}
27
28exists (1:r0=1 /\ 1:r1=0)
29