Test WRC+pora+ctrlrr

PPC WRC+pora+ctrlrr
"RfePR PodRWRA RfeAR DpCtrldRRR FreRP"
Cycle=RfeAR DpCtrldRRR FreRP RfePR PodRWRA
Prefetch=0:x=T,2:x=T
Com=Rf Rf Fr
Orig=RfePR PodRWRA RfeAR DpCtrldRRR FreRP
{ ok=1;
0:r2=x;
1:r2=x; 1:r4=y; 1:r6=ok;
2:r2=y; 2:r4=x;
}
 P0           | P1               | P2             ;
 li r1,1      | lwarx r1,r0,r2   | lwarx r1,r0,r2 ;
 stw r1,0(r2) | li r3,1          | cmpw r1,r1     ;
              | lwarx %sta,r0,r4 | beq  LC00      ;
              | stwcx. r3,r0,r4  | LC00:          ;
              | bne  Fail1       | lwarx r3,r0,r4 ;
              | b   Exit1        |                ;
              | Fail1:           |                ;
              | li r5,0          |                ;
              | stw r5,0(r6)     |                ;
              | Exit1:           |                ;
exists
(ok=1 /\ 1:r1=1 /\ 2:r1=1 /\ 2:r3=0)