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| C WRC+poonceonces+Once
|
| (*
| * Result: Sometimes
| *
| * This litmus test is an extension of the message-passing pattern,
| * where the first write is moved to a separate process. Note that this
| * test has no ordering at all.
| *)
|
| {}
|
| P0(int *x)
| {
| WRITE_ONCE(*x, 1);
| }
|
| P1(int *x, int *y)
| {
| int r0;
|
| r0 = READ_ONCE(*x);
| WRITE_ONCE(*y, 1);
| }
|
| P2(int *x, int *y)
| {
| int r0;
| int r1;
|
| r0 = READ_ONCE(*y);
| r1 = READ_ONCE(*x);
| }
|
| exists (1:r0=1 /\ 2:r0=1 /\ 2:r1=0)
|
|
