Test CoRR3

ARM CoRR3
"CoRR from C++ paper"
{
  P0:R5=x ;
  P1:R5=x ; 
}

P0        | P1        ;
mov R1,#1 | ldr R1,R5 ;
str R1,R5 | ldr R2,R5 ;
mov R2,#2 |           ;
str R2,R5 |           ;
Observed
    1:R1=1; 1:R2=0;
and 1:R1=2; 1:R2=0;
and 1:R1=2; 1:R2=1;