Test ISA2+fencembonceonce+poonceonce+poacquireacquire

LISA ISA2+fencembonceonce+poonceonce+poacquireacquire
"FenceMbdWWOnceOnce RfeOnceOnce PodRWOnceOnce RfeOnceAcquire PodRRAcquireAcquire FreAcquireOnce"
Cycle=PodRRAcquireAcquire FreAcquireOnce FenceMbdWWOnceOnce RfeOnceOnce PodRWOnceOnce RfeOnceAcquire
Relax=FreAcquireOnce RfeOnceAcquire
Safe=PodRRAcquireAcquire RfeOnceOnce PodRWOnceOnce FenceMbdWWOnceOnce
Prefetch=0:x=F,0:y=W,1:y=F,1:z=W,2:z=F,2:x=T
Com=Rf Rf Fr
Orig=FenceMbdWWOnceOnce RfeOnceOnce PodRWOnceOnce RfeOnceAcquire PodRRAcquireAcquire FreAcquireOnce
{
}
 P0          | P1           | P2              ;
 w[once] x 1 | r[once] r0 y | r[acquire] r0 z ;
 f[mb]       | w[once] z 1  | r[acquire] r1 x ;
 w[once] y 1 |              |                 ;
Observed
    2:r1=0; 2:r0=1; 1:r0=1;