// Can we prove constant true or false for this condition?
const SCEV *LHSS = getSCEVOnFirstIteration(LHS, L, SE, FirstIterSCEV);
const SCEV *RHSS = getSCEVOnFirstIteration(RHS, L, SE, FirstIterSCEV);
- // Only query for liveness of in-loop edge if another successor is also
- // in-loop.
- // TODO: isKnownPredicateAt is more powerful, but it's too compile time
- // consuming. So we avoid using it here.
- if (L->contains(Term->getSuccessor(1)) &&
- SE.isKnownPredicate(Pred, LHSS, RHSS))
- MarkLiveEdge(BB, Term->getSuccessor(0));
+ // Only query for liveness of in-loop edge if another successor is also
+ // in-loop.
+ // TODO: isKnownPredicateAt is more powerful, but it's too compile time
+ // consuming. So we avoid using it here.
+ if (L->contains(Term->getSuccessor(1)) &&
+ SE.isKnownPredicate(Pred, LHSS, RHSS))
+ MarkLiveEdge(BB, Term->getSuccessor(0));
else if (L->contains(Term->getSuccessor(0)) &&
SE.isKnownPredicate(ICmpInst::getInversePredicate(Pred), LHSS,
- RHSS))
- MarkLiveEdge(BB, Term->getSuccessor(1));
+ RHSS)) MarkLiveEdge(BB, Term->getSuccessor(1));
else
MarkAllSuccessorsLive(BB);
}