blob: 6a2bc12a1af1ad6b6bf75c5a902e01acd54f3af7 [file] [log] [blame]
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)