Test AddrRW

PPC AddrRW
"Wse SyncdWW Rfe DpAddrdW Rfi PodRW"
Prefetch=0:x=F,1:x=W
Com=Rf Ws
Orig=Wse SyncdWW Rfe DpAddrdW Rfi PodRW
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r5=z; 1:r8=x;
}
 P0           | P1            ;
 li r1,2      | lwz r1,0(r2)  ;
 stw r1,0(r2) | xor r3,r1,r1  ;
 sync         | li r4,1       ;
 li r3,1      | stwx r4,r3,r5 ;
 stw r3,0(r4) | lwz r6,0(r5)  ;
              | li r7,1       ;
              | stw r7,0(r8)  ;
exists
(x=2 /\ 1:r1=1 /\ 1:r6=1)