Test MP+dmb+pos-ctrlisb+BIS

ARM MP+dmb+pos-ctrlisb+BIS
"DMBdWW Rfe PosRR DpCtrlIsbdR Fre + some store"
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr
Orig=DMBdWW Rfe DetourR DpCtrlIsbdR Fre
{
%x0=x; %y0=y;
%y1=y; %x1=x;
%y2=y;
}
 P0           | P1           | P2           ;
 MOV R0,#1    | LDR R0,[%y1] | MOV R0,#2    ;
 STR R0,[%x0] | LDR R1,[%y1] | STR R0,[%y2] ;
 DMB          | CMP R1,R1    |              ;
 MOV R1,#1    | BNE LC00     |              ;
 STR R1,[%y0] | LC00:        |              ;
              | ISB          |              ;
              | LDR R2,[%x1] |              ;
Observed
    1:R0=0; 1:R1=2; 1:R2=0; y=2;
and 1:R0=2; 1:R1=2; 1:R2=0; y=2;