Test CoWW2

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PPC CoWW2
"PPC basic reject,twice (ws + po)"

{0:r1=1; 0:r2=2; 0:r5=x; 1:r1=3; 1:r2=4; 1:r5=x;}

 P0           | P1           ;
 stw r1,0(r5) | stw r1,0(r5) ;
 lwz r3,0(r5) | lwz r3,0(r5) ;
 stw r2,0(r5) | stw r2,0(r5) ;

exists (not (x=4 /\ (0:r3=3 /\ (1:r3=3 \/ 1:r3=2) \/ 0:r3=1 /\ (1:r3=3 \/ 1:r3=2 \/ 1:r3=1)) \/ x=2 /\ (1:r3=3 /\ (0:r3=4 \/ 0:r3=3 \/ 0:r3=1) \/ 1:r3=1 /\ (0:r3=4 \/ 0:r3=1))))