PPC bb2 (BBTwo) "4 proc, st/st ld/ld, 2 sync barriers" { P0:r5=x ; P0:r2=2 ; P1:r6=y ; P1:r1=1 ; P2:r5=x ; P2:r6=y ; P2:r1=1 ;P2:r2=2; P3:r5=x ; P3:r6=y ; } P0 |P1 |P2 |P3 ; stw r2,0(r5) |stw r1,0(r6) |stw r1,0(r5) |lwz r1,0(r6) ; | |sync |sync ; | |stw r2,0(r6) |lwz r2,0(r5) ; locations [x;y;] ~exists (P3:r1=2 /\ P3:r2=0)