Test 3.LB+addr+wsi+addr+sync

PPC 3.LB+addr+wsi+addr+sync
"DpAddrdW Wsi Rfe DpAddrdW Rfe SyncdRW Rfe"
Prefetch=
Com=Rf Rf Rf
Orig=DpAddrdW Wsi Rfe DpAddrdW Rfe SyncdRW Rfe
{
0:r2=x; 0:r5=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  | sync         ;
 li r4,1       | li r4,1       | li r3,1      ;
 stwx r4,r3,r5 | stwx r4,r3,r5 | stw r3,0(r4) ;
 li r6,2       |               |              ;
 stw r6,0(r5)  |               |              ;
exists
(y=2 /\ 0:r1=1 /\ 1:r1=2 /\ 2:r1=1)