Test safe534

PPC safe534
"SyncsWW Rfe DpdR Fri Rfe SyncsRW Rfe SyncdRR Fre"
Cycle=SyncsWW Rfe DpdR Fri Rfe SyncsRW Rfe SyncdRR Fre
Relax=
Safe=Fri Fre DpdR ACSyncsRW ACSyncdRR BCSyncsWW
{
0:r2=y; 0:r5=x;
1:r2=x;
2:r2=x; 2:r4=y;
3:r2=y;
}
 P0            | P1           | P2           | P3           ;
 lwz r1,0(r2)  | lwz r1,0(r2) | lwz r1,0(r2) | li r1,1      ;
 xor r3,r1,r1  | sync         | sync         | stw r1,0(r2) ;
 lwzx r4,r3,r5 | li r3,2      | lwz r3,0(r4) | sync         ;
 li r6,1       | stw r3,0(r2) |              | li r3,2      ;
 stw r6,0(r5)  |              |              | stw r3,0(r2) ;
Observed
    0:r1=1; 0:r4=0; 1:r1=0; 2:r1=1; 2:r3=0; x=1; y=2;
and 0:r1=1; 0:r4=2; 1:r1=0; 2:r1=1; 2:r3=0; x=1; y=2;
and 0:r1=1; 0:r4=0; 1:r1=0; 2:r1=1; 2:r3=0; x=2; y=2;
and 0:r1=1; 0:r4=0; 1:r1=1; 2:r1=1; 2:r3=0; x=2; y=2;
and 0:r1=1; 0:r4=0; 1:r1=0; 2:r1=2; 2:r3=0; x=2; y=2;
and 0:r1=1; 0:r4=0; 1:r1=1; 2:r1=2; 2:r3=0; x=2; y=2;