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| C SB+poonceonces
|
| (*
| * Result: Sometimes
| *
| * This litmus test demonstrates that at least some ordering is required
| * to order the store-buffering pattern, where each process writes to the
| * variable that the preceding process reads.
| *)
|
| {}
|
| P0(int *x, int *y)
| {
| int r0;
|
| WRITE_ONCE(*x, 1);
| r0 = READ_ONCE(*y);
| }
|
| P1(int *x, int *y)
| {
| int r0;
|
| WRITE_ONCE(*y, 1);
| r0 = READ_ONCE(*x);
| }
|
| exists (0:r0=0 /\ 1:r0=0)
|
|