Test 3.LB+lwsync+addr+po

PPC 3.LB+lwsync+addr+po
"LwSyncdRW Rfe DpAddrdW Rfe PodRW Rfe"
Cycle=Rfe PodRW Rfe LwSyncdRW Rfe DpAddrdW
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r5=z;
2:r2=z; 2:r4=x;
}
 P0           | P1            | P2           ;
 lwz r1,0(r2) | lwz r1,0(r2)  | lwz r1,0(r2) ;
 lwsync       | xor r3,r1,r1  | li r3,1      ;
 li r3,1      | li r4,1       | stw r3,0(r4) ;
 stw r3,0(r4) | stwx r4,r3,r5 |              ;
exists
(0:r1=1 /\ 1:r1=1 /\ 2:r1=1)