Test W+RWC+po+addr+lwsync

PPC W+RWC+po+addr+lwsync
"PodWW Rfe DpAddrdR Fre LwSyncdWR Fre"
Cycle=Rfe DpAddrdR Fre LwSyncdWR Fre PodWW
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r5=z;
2:r2=z; 2:r4=x;
}
 P0           | P1            | P2           ;
 li r1,1      | lwz r1,0(r2)  | li r1,1      ;
 stw r1,0(r2) | xor r3,r1,r1  | stw r1,0(r2) ;
 li r3,1      | lwzx r4,r3,r5 | lwsync       ;
 stw r3,0(r4) |               | lwz r3,0(r4) ;
exists
(1:r1=1 /\ 1:r4=0 /\ 2:r3=0)