Test R03

PPC R03
"PodRR Fre PodWW Wse Rfe"
(* Allowed by PLDI/Forbid by CAV *)
{0:r2=y; 0:r4=x; 1:r2=x; 1:r4=y; 2:r2=y;}

 P0           | P1           | P2           ;
 lwz r1,0(r2) | li r1,1      | li r1,2      ;
 sync         | stw r1,0(r2) | stw r1,0(r2) ;
 lwz r3,0(r4) | lwsync       |              ;
              | li r3,1      |              ;
              | stw r3,0(r4) |              ;
Observed
    0:r1=2; 0:r3=0; y=2;