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| C R+poonceonces
|
| (*
| * Result: Sometimes
| *
| * This is the unordered (thus lacking smp_mb()) version of one of the
| * classic counterintuitive litmus tests that illustrates the effects of
| * store propagation delays.
| *)
|
| {}
|
| P0(int *x, int *y)
| {
| WRITE_ONCE(*x, 1);
| WRITE_ONCE(*y, 1);
| }
|
| P1(int *x, int *y)
| {
| int r0;
|
| WRITE_ONCE(*y, 2);
| r0 = READ_ONCE(*x);
| }
|
| exists (y=2 /\ 1:r0=0)
|
|