Test LB+addrap+po

PPC LB+addrap+po
"DpAddrdWAP Rfe PodRW RfePA"
Cycle=RfePA DpAddrdWAP Rfe PodRW
Prefetch=
Com=Rf Rf
Orig=DpAddrdWAP Rfe PodRW RfePA
{ ok=1;
0:r2=x; 0:r5=y; 0:r7=ok;
1:r2=y; 1:r4=x;
}
 P0              | P1           ;
 lwarx r1,r0,r2  | lwz r1,0(r2) ;
 stwcx. r1,r0,r2 | li r3,1      ;
 bne  Fail0      | stw r3,0(r4) ;
 xor r3,r1,r1    |              ;
 li r4,1         |              ;
 stwx r4,r3,r5   |              ;
 b   Exit0       |              ;
 Fail0:          |              ;
 li r6,0         |              ;
 stw r6,0(r7)    |              ;
 Exit0:          |              ;
exists
(ok=1 /\ 0:r1=1 /\ 1:r1=1)