Test WRR+2W+lwsyncpr+sync

PPC WRR+2W+lwsyncpr+sync
"Rfe LwSyncdRRPR FreRP SyncdWW Wse"
Cycle=Rfe LwSyncdRRPR FreRP SyncdWW Wse
Prefetch=0:x=F,1:y=T,2:x=W
Com=Rf Fr Ws
Orig=Rfe LwSyncdRRPR FreRP SyncdWW 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)   | li r1,1      ;
 stw r1,0(r2) | lwsync         | stw r1,0(r2) ;
              | lwarx r3,r0,r4 | sync         ;
              |                | li r3,1      ;
              |                | stw r3,0(r4) ;
exists
(x=2 /\ 1:r1=2 /\ 1:r3=0)