Test ISA2+dmb+fri+addr

ARM ISA2+dmb+fri+addr
"DMBdWW Rfe Fri Rfe DpAddrdR Fre"
Prefetch=2:x=T
Com=Rf Rf Fr
Orig=DMBdWW Rfe Fri Rfe DpAddrdR Fre
{
%x0=x; %y0=y;
%y1=y;
%y2=y; %x2=x;
}
 P0           | P1           | P2              ;
 MOV R0,#1    | LDR R0,[%y1] | LDR R0,[%y2]    ;
 STR R0,[%x0] | MOV R1,#2    | EOR R1,R0,R0    ;
 DMB          | STR R1,[%y1] | LDR R2,[R1,%x2] ;
 MOV R1,#1    |              |                 ;
 STR R1,[%y0] |              |                 ;
Observed
    1:R0=1; 2:R0=2; 2:R2=0; y=2;