Test WWC+sync+po

PPC WWC+sync+po
"Rfe SyncdRW Rfe PodRW Wse"
Cycle=Rfe PodRW Wse Rfe SyncdRW
Prefetch=0:x=F,2:x=W
Com=Rf Rf Ws
Orig=Rfe SyncdRW Rfe PodRW Wse
{
0:r2=x;
1:r2=x; 1:r4=y;
2:r2=y; 2:r4=x;
}
 P0           | P1           | P2           ;
 li r1,2      | lwz r1,0(r2) | lwz r1,0(r2) ;
 stw r1,0(r2) | sync         | li r3,1      ;
              | li r3,1      | stw r3,0(r4) ;
              | stw r3,0(r4) |              ;
exists
(x=2 /\ 1:r1=2 /\ 2:r1=1)