Test MP+dmb.sy+data-rfi-fri-rfi-ctrlisb

AArch64 MP+dmb.sy+data-rfi-fri-rfi-ctrlisb
"DMB.SYdWW Rfe DpDatadW Rfi Fri Rfi DpCtrlIsbdR Fre"
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr
Orig=DMB.SYdWW Rfe DpDatadW Rfi Fri Rfi DpCtrlIsbdR Fre
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X3=z; 1:X8=x;
}
 P0          | P1           ;
 MOV W0,#1   | LDR W0,[X1]  ;
 STR W0,[X1] | EOR W2,W0,W0 ;
 DMB SY      | ADD W2,W2,#1 ;
 MOV W2,#1   | STR W2,[X3]  ;
 STR W2,[X3] | LDR W4,[X3]  ;
             | MOV W5,#2    ;
             | STR W5,[X3]  ;
             | LDR W6,[X3]  ;
             | CBNZ W6,LC00 ;
             | LC00:        ;
             | ISB          ;
             | LDR W7,[X8]  ;
Observed
    z=2; y=1; x=1; 1:X7=0; 1:X6=2; 1:X4=1; 1:X0=1;