Test LB+addr+poap

PPC LB+addr+poap
"DpAddrdW RfePA PodRWAP Rfe"
Cycle=RfePA PodRWAP Rfe DpAddrdW
Prefetch=
Com=Rf Rf
Orig=DpAddrdW RfePA PodRWAP Rfe
{ ok=1;
0:r2=x; 0:r5=y;
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      ;
 stwx r4,r3,r5 | li r3,1         ;
               | stw r3,0(r4)    ;
               | b   Exit1       ;
               | Fail1:          ;
               | li r5,0         ;
               | stw r5,0(r6)    ;
               | Exit1:          ;
exists
(ok=1 /\ 0:r1=1 /\ 1:r1=1)