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

PPC 3.LB+data+wsi+addr+lwsync
"DpDatadW Wsi Rfe DpAddrdW Rfe LwSyncdRW Rfe"
Prefetch=
Com=Rf Rf Rf
Orig=DpDatadW Wsi Rfe DpAddrdW 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) ;
 xor r3,r1,r1 | xor r3,r1,r1  | lwsync       ;
 addi r3,r3,1 | li r4,1       | li r3,1      ;
 stw r3,0(r4) | stwx r4,r3,r5 | stw r3,0(r4) ;
 li r5,2      |               |              ;
 stw r5,0(r4) |               |              ;
exists
(y=2 /\ 0:r1=1 /\ 1:r1=2 /\ 2:r1=1)