3431   std::optional<NonTrivialUnswitchCandidate> Best;  in findBestNonTrivialUnswitchCandidate()  local
3458     if (!Best || CandidateCost < Best->Cost) {  in findBestNonTrivialUnswitchCandidate()
3459       Best = Candidate;  in findBestNonTrivialUnswitchCandidate()
3460       Best->Cost = CandidateCost;  in findBestNonTrivialUnswitchCandidate()
3463   assert(Best && "Must be!");  in findBestNonTrivialUnswitchCandidate()
3464   return *Best;  in findBestNonTrivialUnswitchCandidate()
3517   NonTrivialUnswitchCandidate Best = findBestNonTrivialUnswitchCandidate(  in unswitchBestCondition()  local
3520   assert(Best.TI && "Failed to find loop unswitch candidate");  in unswitchBestCondition()
3521   assert(Best.Cost && "Failed to compute cost");  in unswitchBestCondition()
3523   if (*Best.Cost >= UnswitchThreshold) {  in unswitchBestCondition()
3524     LLVM_DEBUG(dbgs() << "Cannot unswitch, lowest cost found: " << *Best.Cost  in unswitchBestCondition()
3530   if (Best.hasPendingInjection()) {  in unswitchBestCondition()
3531     Best = injectPendingInvariantConditions(Best, L, DT, LI, AC, MSSAU);  in unswitchBestCondition()
3534   assert(!Best.hasPendingInjection() &&  in unswitchBestCondition()
3537   if (Best.TI != PartialIVCondBranch)  in unswitchBestCondition()
3541   if (auto *SI = dyn_cast<SelectInst>(Best.TI)) {  in unswitchBestCondition()
3548     Best.TI = turnSelectIntoBranch(SI, DT, LI, MSSAU, &AC);  in unswitchBestCondition()
3551     if (isGuard(Best.TI))  in unswitchBestCondition()
3552       Best.TI =  in unswitchBestCondition()
3553           turnGuardIntoBranch(cast<IntrinsicInst>(Best.TI), L, DT, LI, MSSAU);  in unswitchBestCondition()
3554     InsertFreeze = shouldInsertFreeze(L, *Best.TI, DT, AC);  in unswitchBestCondition()
3557   LLVM_DEBUG(dbgs() << "  Unswitching non-trivial (cost = " << Best.Cost  in unswitchBestCondition()
3558                     << ") terminator: " << *Best.TI << "\n");  in unswitchBestCondition()
3559   unswitchNontrivialInvariants(L, *Best.TI, Best.Invariants, PartialIVInfo, DT,  in unswitchBestCondition()