Test 3.LB+ctrl+addr+wsi+lwsync

PPC 3.LB+ctrl+addr+wsi+lwsync
"DpCtrldW Rfe DpAddrdW Wsi Rfe LwSyncdRW Rfe"
Prefetch=
Com=Rf Rf Rf
Orig=DpCtrldW Rfe DpAddrdW Wsi Rfe LwSyncdRW Rfe
{
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) ;
 cmpw r1,r1   | xor r3,r1,r1  | lwsync       ;
 beq  LC00    | li r4,1       | li r3,1      ;
 LC00:        | stwx r4,r3,r5 | stw r3,0(r4) ;
 li r3,1      | li r6,2       |              ;
 stw r3,0(r4) | stw r6,0(r5)  |              ;
exists
(z=2 /\ 0:r1=1 /\ 1:r1=1 /\ 2:r1=2)