Test rfe002

PPC rfe002
"DpdW Wse Rfe DpdW Rfe"
Cycle=DpdW Wse Rfe DpdW Rfe
Relax=Rfe
Safe=Wse DpdW
{
0:r2=x; 0:r5=y;
1:r2=y; 1:r5=x;
2:r2=x;
}
 P0            | P1            | P2           ;
 lwz r1,0(r2)  | lwz r1,0(r2)  | li r1,2      ;
 xor r3,r1,r1  | xor r3,r1,r1  | stw r1,0(r2) ;
 li r4,1       | li r4,1       |              ;
 stwx r4,r3,r5 | stwx r4,r3,r5 |              ;
exists
(x=2 /\ 0:r1=2 /\ 1:r1=1)