Test LB+addrpa+porp

PPC LB+addrpa+porp
"DpAddrdWPA RfeAR PodRWRP Rfe"
Cycle=RfeAR PodRWRP Rfe DpAddrdWPA
Prefetch=
Com=Rf Rf
Orig=DpAddrdWPA RfeAR PodRWRP Rfe
{ ok=1;
0:r2=x; 0:r5=y; 0:r7=ok;
1:r2=y; 1:r4=x;
}
 P0               | P1             ;
 lwz r1,0(r2)     | lwarx r1,r0,r2 ;
 xor r3,r1,r1     | li r3,1        ;
 li r4,1          | stw r3,0(r4)   ;
 lwarx %sta,r3,r5 |                ;
 stwcx. r4,r3,r5  |                ;
 bne  Fail0       |                ;
 b   Exit0        |                ;
 Fail0:           |                ;
 li r6,0          |                ;
 stw r6,0(r7)     |                ;
 Exit0:           |                ;
exists
(ok=1 /\ 0:r1=1 /\ 1:r1=1)