Test WRW+2W+po+lwsync+A

PPC WRW+2W+po+lwsync+A
"RfeAP PodRW Wse LwSyncdWW WsePA"
Cycle=RfeAP PodRW Wse LwSyncdWW WsePA
Prefetch=0:x=F,1:y=W,2:y=F,2:x=W
Com=Rf Ws Ws
Orig=RfeAP PodRW Wse LwSyncdWW WsePA
{ ok=1;
0:r2=x; 0:r4=ok;
1:r2=x; 1:r4=y;
2:r2=y; 2:r4=x;
}
 P0               | P1           | P2           ;
 li r1,2          | lwz r1,0(r2) | li r1,2      ;
 lwarx %sta,r0,r2 | li r3,1      | stw r1,0(r2) ;
 stwcx. r1,r0,r2  | stw r3,0(r4) | lwsync       ;
 bne  Fail0       |              | li r3,1      ;
 b   Exit0        |              | stw r3,0(r4) ;
 Fail0:           |              |              ;
 li r3,0          |              |              ;
 stw r3,0(r4)     |              |              ;
 Exit0:           |              |              ;
exists
(ok=1 /\ x=2 /\ y=2 /\ 1:r1=2)