Test MP+dmb.sy+addr-rfi-[fr-rf]-ctrl-pos

AArch64 MP+dmb.sy+addr-rfi-[fr-rf]-ctrl-pos
"DMB.SYdWW Rfe DpAddrdW Rfi FrLeave RfBack DpCtrldR PosRR Fre"
Cycle=Rfi FrLeave RfBack DpCtrldR PosRR Fre DMB.SYdWW Rfe DpAddrdW
Relax=
Safe=Rfi Rfe Fre PosRR DMB.SYdWW DpAddrdW DpCtrldR [FrLeave,RfBack]
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr Rf
Orig=DMB.SYdWW Rfe DpAddrdW Rfi FrLeave RfBack DpCtrldR PosRR Fre
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X4=z; 1:X8=x;
2:X1=z;
}
 P0          | P1                  | P2          ;
 MOV W0,#1   | LDR W0,[X1]         | MOV W0,#2   ;
 STR W0,[X1] | EOR W2,W0,W0        | STR W0,[X1] ;
 DMB SY      | MOV W3,#1           |             ;
 MOV W2,#1   | STR W3,[X4,W2,SXTW] |             ;
 STR W2,[X3] | LDR W5,[X4]         |             ;
             | LDR W6,[X4]         |             ;
             | CBNZ W6,LC00        |             ;
             | LC00:               |             ;
             | LDR W7,[X8]         |             ;
             | LDR W9,[X8]         |             ;
Observed
    z=2; y=1; x=1; 1:X9=0; 1:X7=1; 1:X6=1; 1:X5=1; 1:X0=1;
and z=1; y=1; x=1; 1:X9=0; 1:X7=1; 1:X6=1; 1:X5=1; 1:X0=1;
and z=2; y=1; x=1; 1:X9=0; 1:X7=1; 1:X6=1; 1:X5=1; 1:X0=0;
and z=1; y=1; x=1; 1:X9=0; 1:X7=1; 1:X6=1; 1:X5=1; 1:X0=0;