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

PPC 3.LB+addr+ctrl+addr+wsi
"DpAddrdW Rfe DpCtrldW Rfe DpAddrdW Wsi Rfe"
Prefetch=
Com=Rf Rf Rf
Orig=DpAddrdW Rfe DpCtrldW Rfe DpAddrdW Wsi Rfe
{
0:r2=x; 0:r5=y;
1:r2=y; 1:r4=z;
2:r2=z; 2:r5=x;
}
 P0            | P1           | P2            ;
 lwz r1,0(r2)  | lwz r1,0(r2) | lwz r1,0(r2)  ;
 xor r3,r1,r1  | cmpw r1,r1   | xor r3,r1,r1  ;
 li r4,1       | beq  LC00    | li r4,1       ;
 stwx r4,r3,r5 | LC00:        | stwx r4,r3,r5 ;
               | li r3,1      | li r6,2       ;
               | stw r3,0(r4) | stw r6,0(r5)  ;
exists
(x=2 /\ 0:r1=2 /\ 1:r1=1 /\ 2:r1=1)