PPC aclwdrr009
"Fre SyncsWR Fre LwSyncdWW Wse Rfe LwSyncdRR"
Cycle=Fre SyncsWR Fre LwSyncdWW Wse Rfe LwSyncdRR
Relax=ACLwSyncdRR
Safe=Fre Wse SyncsWR LwSyncdWW
{
0:r2=y;
1:r2=y; 1:r4=x;
2:r2=x;
3:r2=x; 3:r4=y;
}
P0 | P1 | P2 | P3 ;
li r1,1 | li r1,2 | li r1,2 | lwz r1,0(r2) ;
stw r1,0(r2) | stw r1,0(r2) | stw r1,0(r2) | lwsync ;
sync | lwsync | | lwz r3,0(r4) ;
lwz r3,0(r2) | li r3,1 | | ;
| stw r3,0(r4) | | ;
exists
(x=2 /\ y=2 /\ 0:r3=1 /\ 3:r1=2 /\ 3:r3=0)