Test LB+addrpa+poaa

PPC LB+addrpa+poaa
"DpAddrdWPA RfeAA PodRWAA RfeAP"
Cycle=RfeAA PodRWAA RfeAP DpAddrdWPA
Prefetch=
Com=Rf Rf
Orig=DpAddrdWPA RfeAA PodRWAA RfeAP
{ ok=1;
0:r2=x; 0:r5=y; 0:r7=ok;
1:r2=y; 1:r4=x; 1:r6=ok;
}
 P0               | P1               ;
 lwz r1,0(r2)     | lwarx r1,r0,r2   ;
 xor r3,r1,r1     | stwcx. r1,r0,r2  ;
 li r4,1          | bne  Fail1       ;
 lwarx %sta,r3,r5 | li r3,1          ;
 stwcx. r4,r3,r5  | lwarx %sta,r0,r4 ;
 bne  Fail0       | stwcx. r3,r0,r4  ;
 b   Exit0        | bne  Fail1       ;
 Fail0:           | b   Exit1        ;
 li r6,0          | Fail1:           ;
 stw r6,0(r7)     | li r5,0          ;
 Exit0:           | stw r5,0(r6)     ;
                  | Exit1:           ;
exists
(ok=1 /\ 0:r1=1 /\ 1:r1=1)