PPC IRIW+lwsyncar+lwsyncrr
"RfePA LwSyncdRRAR FreRP RfePR LwSyncdRRRR FreRP"
Cycle=RfePA LwSyncdRRAR FreRP RfePR LwSyncdRRRR FreRP
Prefetch=0:x=T,1:y=T,2:y=T,3:x=T
Com=Rf Fr Rf Fr
Orig=RfePA LwSyncdRRAR FreRP RfePR LwSyncdRRRR FreRP
{ ok=1;
0:r2=x;
1:r2=x; 1:r4=y; 1:r6=ok;
2:r2=y;
3:r2=y; 3:r4=x;
}
P0 | P1 | P2 | P3 ;
li r1,1 | lwarx r1,r0,r2 | li r1,1 | lwarx r1,r0,r2 ;
stw r1,0(r2) | stwcx. r1,r0,r2 | stw r1,0(r2) | lwsync ;
| bne Fail1 | | lwarx r3,r0,r4 ;
| lwsync | | ;
| lwarx r3,r0,r4 | | ;
| b Exit1 | | ;
| Fail1: | | ;
| li r5,0 | | ;
| stw r5,0(r6) | | ;
| Exit1: | | ;
exists
(ok=1 /\ 1:r1=1 /\ 1:r3=0 /\ 3:r1=1 /\ 3:r3=0)