Test IRWIW+poacquireonce+pooncerelease+ReleaseRelease

LISA IRWIW+poacquireonce+pooncerelease+ReleaseRelease
"RfeReleaseAcquire PodRWAcquireOnce WseOnceRelease RfeReleaseOnce PodRWOnceRelease WseReleaseRelease"
Cycle=PodRWAcquireOnce WseOnceRelease RfeReleaseOnce PodRWOnceRelease WseReleaseRelease RfeReleaseAcquire
Relax=WseOnceRelease RfeReleaseAcquire RfeReleaseOnce WseReleaseRelease
Safe=PodRWAcquireOnce PodRWOnceRelease
Prefetch=1:x=F,1:y=W,3:y=F,3:x=W
Com=Rf Ws Rf Ws
Orig=RfeReleaseAcquire PodRWAcquireOnce WseOnceRelease RfeReleaseOnce PodRWOnceRelease WseReleaseRelease
{
}
 P0             | P1              | P2             | P3             ;
 w[release] x 2 | r[acquire] r0 x | w[release] y 2 | r[once] r0 y   ;
                | w[once] y 1     |                | w[release] x 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;