Test Z6.3+lwsync+po+lwsync

Run Z6.3+lwsync+po+lwsync in model, using ppcmem

PPC Z6.3+lwsync+po+lwsync
"LwSyncdWW Wse PodWW Rfe LwSyncdRR Fre"
Cycle=Rfe LwSyncdRR Fre LwSyncdWW Wse PodWW
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r4=z;
2:r2=z; 2:r4=x;
}
 P0           | P1           | P2           ;
 li r1,1      | li r1,2      | lwz r1,0(r2) ;
 stw r1,0(r2) | stw r1,0(r2) | lwsync       ;
 lwsync       | li r3,1      | lwz r3,0(r4) ;
 li r3,1      | stw r3,0(r4) |              ;
 stw r3,0(r4) |              |              ;
exists
(y=2 /\ 2:r1=1 /\ 2:r3=0)