Test safe031

PPC safe031
"SyncdWW Rfe SyncdRW Rfe DpdW Wse"
Cycle=SyncdWW Rfe SyncdRW Rfe DpdW Wse
Relax=
Safe=Wse DpdW BCSyncdWW BCSyncdRW
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r5=z;
2:r2=z; 2:r4=x;
}
 P0           | P1            | P2           ;
 lwz r1,0(r2) | lwz r1,0(r2)  | li r1,2      ;
 sync         | xor r3,r1,r1  | stw r1,0(r2) ;
 li r3,1      | li r4,1       | sync         ;
 stw r3,0(r4) | stwx r4,r3,r5 | li r3,1      ;
              |               | stw r3,0(r4) ;
exists
(z=2 /\ 0:r1=1 /\ 1:r1=1)