Test RWC+ctrlisyncpr+sync+A

PPC RWC+ctrlisyncpr+sync+A
"RfeAP DpCtrlIsyncdRPR FreRP SyncdWR FrePA"
Cycle=RfeAP DpCtrlIsyncdRPR FreRP SyncdWR FrePA
Prefetch=0:x=T,1:y=T,2:x=T
Com=Rf Fr Fr
Orig=RfeAP DpCtrlIsyncdRPR FreRP SyncdWR FrePA
{ ok=1;
0:r2=x; 0:r4=ok;
1:r2=x; 1:r4=y;
2:r2=y; 2:r4=x;
}
 P0               | P1             | P2           ;
 li r1,1          | lwz r1,0(r2)   | li r1,1      ;
 lwarx %sta,r0,r2 | cmpw r1,r1     | stw r1,0(r2) ;
 stwcx. r1,r0,r2  | beq  LC00      | sync         ;
 bne  Fail0       | LC00:          | lwz r3,0(r4) ;
 b   Exit0        | isync          |              ;
 Fail0:           | lwarx r3,r0,r4 |              ;
 li r3,0          |                |              ;
 stw r3,0(r4)     |                |              ;
 Exit0:           |                |              ;
exists
(ok=1 /\ 1:r1=1 /\ 1:r3=0 /\ 2:r3=0)