Test WWC+po+poap

PPC WWC+po+poap
"Rfe PodRW RfePA PodRWAP Wse"
Cycle=RfePA PodRWAP Wse Rfe PodRW
Prefetch=0:x=F,2:x=W
Com=Rf Rf Ws
Orig=Rfe PodRW RfePA PodRWAP Wse
{ ok=1;
0:r2=x;
1:r2=x; 1:r4=y;
2:r2=y; 2:r4=x; 2:r6=ok;
}
 P0           | P1           | P2              ;
 li r1,2      | lwz r1,0(r2) | lwarx r1,r0,r2  ;
 stw r1,0(r2) | li r3,1      | stwcx. r1,r0,r2 ;
              | stw r3,0(r4) | bne  Fail2      ;
              |              | li r3,1         ;
              |              | stw r3,0(r4)    ;
              |              | b   Exit2       ;
              |              | Fail2:          ;
              |              | li r5,0         ;
              |              | stw r5,0(r6)    ;
              |              | Exit2:          ;
exists
(ok=1 /\ x=2 /\ 1:r1=2 /\ 2:r1=1)