Test LB+lwsync+poap

PPC LB+lwsync+poap
"LwSyncdRW RfePA PodRWAP Rfe"
Cycle=RfePA PodRWAP Rfe LwSyncdRW
Prefetch=
Com=Rf Rf
Orig=LwSyncdRW RfePA PodRWAP Rfe
{ ok=1;
0:r2=x; 0:r4=y;
1:r2=y; 1:r4=x; 1:r6=ok;
}
 P0           | P1              ;
 lwz r1,0(r2) | lwarx r1,r0,r2  ;
 lwsync       | stwcx. r1,r0,r2 ;
 li r3,1      | bne  Fail1      ;
 stw r3,0(r4) | 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)