Test WRC+popa+ctrlra

PPC WRC+popa+ctrlra
"Rfe PodRWPA RfeAR DpCtrldRRA FreAP"
Cycle=RfeAR DpCtrldRRA FreAP Rfe PodRWPA
Prefetch=0:x=T,2:x=T
Com=Rf Rf Fr
Orig=Rfe PodRWPA RfeAR DpCtrldRRA FreAP
{ ok=1;
0:r2=x;
1:r2=x; 1:r4=y; 1:r6=ok;
2:r2=y; 2:r4=x; 2:r6=ok;
}
 P0           | P1               | P2              ;
 li r1,1      | lwz r1,0(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        | stwcx. r3,r0,r4 ;
              | Fail1:           | bne  Fail2      ;
              | li r5,0          | b   Exit2       ;
              | stw r5,0(r6)     | Fail2:          ;
              | Exit1:           | li r5,0         ;
              |                  | stw r5,0(r6)    ;
              |                  | Exit2:          ;
exists
(ok=1 /\ 1:r1=1 /\ 2:r1=1 /\ 2:r3=0)