Test IRWIW+addr+po

Run IRWIW+addr+po in model, using ppcmem

PPC IRWIW+addr+po
"Rfe DpAddrdW Wse Rfe PodRW Wse"
Cycle=Rfe PodRW Wse Rfe DpAddrdW Wse
{
0:r2=x;
1:r2=x; 1:r5=y;
2:r2=y;
3:r2=y; 3:r4=x;
}
 P0           | P1            | P2           | P3           ;
 li r1,2      | lwz r1,0(r2)  | li r1,2      | lwz r1,0(r2) ;
 stw r1,0(r2) | xor r3,r1,r1  | stw r1,0(r2) | li r3,1      ;
              | li r4,1       |              | stw r3,0(r4) ;
              | stwx r4,r3,r5 |              |              ;
exists
(x=2 /\ y=2 /\ 1:r1=2 /\ 3:r1=2)