Test IRIW+lwsync+lwsyncar+PA

PPC IRIW+lwsync+lwsyncar+PA
"Rfe LwSyncdRR FrePA RfeAA LwSyncdRRAR FreRP"
Cycle=RfeAA LwSyncdRRAR FreRP Rfe LwSyncdRR FrePA
Prefetch=0:x=T,1:y=T,2:y=T,3:x=T
Com=Rf Fr Rf Fr
Orig=Rfe LwSyncdRR FrePA RfeAA LwSyncdRRAR FreRP
{ ok=1;
0:r2=x;
1:r2=x; 1:r4=y;
2:r2=y; 2:r4=ok;
3:r2=y; 3:r4=x; 3:r6=ok;
}
 P0           | P1           | P2               | P3              ;
 li r1,1      | lwz r1,0(r2) | li r1,1          | lwarx r1,r0,r2  ;
 stw r1,0(r2) | lwsync       | lwarx %sta,r0,r2 | stwcx. r1,r0,r2 ;
              | lwz r3,0(r4) | stwcx. r1,r0,r2  | bne  Fail3      ;
              |              | bne  Fail2       | lwsync          ;
              |              | b   Exit2        | lwarx r3,r0,r4  ;
              |              | Fail2:           | b   Exit3       ;
              |              | li r3,0          | Fail3:          ;
              |              | stw r3,0(r4)     | li r5,0         ;
              |              | Exit2:           | stw r5,0(r6)    ;
              |              |                  | Exit3:          ;
exists
(ok=1 /\ 1:r1=1 /\ 1:r3=0 /\ 3:r1=1 /\ 3:r3=0)