Test Z6.3+pooncerelease+fencembonceonce+poacquireacquire

LISA Z6.3+pooncerelease+fencembonceonce+poacquireacquire
"PodWWOnceRelease WseReleaseOnce FenceMbdWWOnceOnce RfeOnceAcquire PodRRAcquireAcquire FreAcquireOnce"
Cycle=PodRRAcquireAcquire FreAcquireOnce PodWWOnceRelease WseReleaseOnce FenceMbdWWOnceOnce RfeOnceAcquire
Relax=FreAcquireOnce RfeOnceAcquire WseReleaseOnce
Safe=PodRRAcquireAcquire FenceMbdWWOnceOnce PodWWOnceRelease
Prefetch=0:x=F,0:y=W,1:y=F,1:z=W,2:z=F,2:x=T
Com=Ws Rf Fr
Orig=PodWWOnceRelease WseReleaseOnce FenceMbdWWOnceOnce RfeOnceAcquire PodRRAcquireAcquire FreAcquireOnce
{
}
 P0             | P1          | P2              ;
 w[once] x 1    | w[once] y 2 | r[acquire] r0 z ;
 w[release] y 1 | f[mb]       | r[acquire] r1 x ;
                | w[once] z 1 |                 ;
Observed
    y=2; 2:r1=0; 2:r0=1;