Test IRWIW+ctrlonceonce+poacquirerelease+OnceRelease

LISA IRWIW+ctrlonceonce+poacquirerelease+OnceRelease
"RfeOnceOnce DpCtrldWOnceOnce WseOnceRelease RfeReleaseAcquire PodRWAcquireRelease WseReleaseOnce"
Cycle=PodRWAcquireRelease WseReleaseOnce RfeOnceOnce DpCtrldWOnceOnce WseOnceRelease RfeReleaseAcquire
Relax=WseOnceRelease RfeReleaseAcquire WseReleaseOnce
Safe=PodRWAcquireRelease RfeOnceOnce DpCtrldWOnceOnce
Prefetch=1:x=F,1:y=W,3:y=F,3:x=W
Com=Rf Ws Rf Ws
Orig=RfeOnceOnce DpCtrldWOnceOnce WseOnceRelease RfeReleaseAcquire PodRWAcquireRelease WseReleaseOnce
{
}
 P0          | P1               | P2             | P3              ;
 w[once] x 2 | r[once] r0 x     | w[release] y 2 | r[acquire] r0 y ;
             | mov r1 (eq r0 0) |                | w[release] x 1  ;
             | b[] r1 LC00      |                |                 ;
             | LC00:            |                |                 ;
             | w[once] y 1      |                |                 ;
Observed
    y=2; x=2; 3:r0=2; 1:r0=2;
and y=2; x=2; 3:r0=1; 1:r0=2;
and y=1; x=2; 3:r0=1; 1:r0=2;