Test WWC+porp+sync

PPC WWC+porp+sync
"RfePR PodRWRP Rfe SyncdRW Wse"
Cycle=Rfe SyncdRW Wse RfePR PodRWRP
Prefetch=0:x=F,2:x=W
Com=Rf Rf Ws
Orig=RfePR PodRWRP Rfe SyncdRW Wse
{
0:r2=x;
1:r2=x; 1:r4=y;
2:r2=y; 2:r4=x;
}
 P0           | P1             | P2           ;
 li r1,2      | lwarx r1,r0,r2 | lwz r1,0(r2) ;
 stw r1,0(r2) | li r3,1        | sync         ;
              | stw r3,0(r4)   | li r3,1      ;
              |                | stw r3,0(r4) ;
exists
(x=2 /\ 1:r1=2 /\ 2:r1=1)