Test RWC+lwsyncpr+lwsync

PPC RWC+lwsyncpr+lwsync
"Rfe LwSyncdRRPR FreRP LwSyncdWR Fre"
Cycle=Rfe LwSyncdRRPR FreRP LwSyncdWR Fre
Prefetch=0:x=T,1:y=T,2:x=T
Com=Rf Fr Fr
Orig=Rfe LwSyncdRRPR FreRP LwSyncdWR Fre
{
0:r2=x;
1:r2=x; 1:r4=y;
2:r2=y; 2:r4=x;
}
 P0           | P1             | P2           ;
 li r1,1      | lwz r1,0(r2)   | li r1,1      ;
 stw r1,0(r2) | lwsync         | stw r1,0(r2) ;
              | lwarx r3,r0,r4 | lwsync       ;
              |                | lwz r3,0(r4) ;
exists
(1:r1=1 /\ 1:r3=0 /\ 2:r3=0)