Test WRW+WR+addr+rfi-addr

PPC WRW+WR+addr+rfi-addr
"Rfe DpAddrdW Wse Rfi DpAddrdR Fre"
Prefetch=0:x=T,1:y=W,2:y=F,2:x=T
Com=Rf Ws Fr
Orig=Rfe DpAddrdW Wse Rfi DpAddrdR Fre
{
0:r2=x;
1:r2=x; 1:r5=y;
2:r2=y; 2:r6=x;
}
 P0           | P1            | P2            ;
 li r1,1      | lwz r1,0(r2)  | li r1,2       ;
 stw r1,0(r2) | xor r3,r1,r1  | stw r1,0(r2)  ;
              | li r4,1       | lwz r3,0(r2)  ;
              | stwx r4,r3,r5 | xor r4,r3,r3  ;
              |               | lwzx r5,r4,r6 ;
exists
(y=2 /\ 1:r1=1 /\ 2:r3=2 /\ 2:r5=0)