Path: blob/master/tools/memory-model/litmus-tests/CoWR+poonceonce+Once.litmus
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C CoWR+poonceonce+Once
(*
* Result: Never
*
* Test of write-read coherence, that is, whether or not a write to a
* given variable and a later read from that same variable are ordered.
*)
{}
P0(int *x)
{
int r0;
WRITE_ONCE(*x, 1);
r0 = READ_ONCE(*x);
}
P1(int *x)
{
WRITE_ONCE(*x, 2);
}
exists (x=1 /\ 0:r0=2)