Test R+rfi-ctrl-pos-fri+dmb.sy

AArch64 R+rfi-ctrl-pos-fri+dmb.sy
"Rfi DpCtrldR PosRR Fri Wse DMB.SYdWR Fre"
Cycle=Rfi DpCtrldR PosRR Fri Wse DMB.SYdWR Fre
Relax=
Safe=Rfi Fri Fre Wse PosRR DMB.SYdWR DpCtrldR
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Ws Fr
Orig=Rfi DpCtrldR PosRR Fri Wse DMB.SYdWR Fre
{
0:X1=x; 0:X4=y;
1:X1=y; 1:X3=x;
}
 P0           | P1          ;
 MOV W0,#1    | MOV W0,#2   ;
 STR W0,[X1]  | STR W0,[X1] ;
 LDR W2,[X1]  | DMB SY      ;
 CBNZ W2,LC00 | LDR W2,[X3] ;
 LC00:        |             ;
 LDR W3,[X4]  |             ;
 LDR W5,[X4]  |             ;
 MOV W6,#1    |             ;
 STR W6,[X4]  |             ;
Observed
    y=1; x=1; 1:X2=1; 0:X5=0; 0:X3=2; 0:X2=1;
and y=1; x=1; 1:X2=0; 0:X5=0; 0:X3=2; 0:X2=1;