98     bool makeIVComparisonInvariant(ICmpInst *ICmp, Instruction *IVOperand);
99     void eliminateIVComparison(ICmpInst *ICmp, Instruction *IVOperand);
202 bool SimplifyIndvar::makeIVComparisonInvariant(ICmpInst *ICmp,  in makeIVComparisonInvariant()  argument
208   ICmpInst::Predicate Pred = ICmp->getPredicate();  in makeIVComparisonInvariant()
209   if (IVOperand != ICmp->getOperand(0)) {  in makeIVComparisonInvariant()
211     assert(IVOperand == ICmp->getOperand(1) && "Can't find IVOperand");  in makeIVComparisonInvariant()
218   const Loop *ICmpLoop = LI->getLoopFor(ICmp->getParent());  in makeIVComparisonInvariant()
219   const SCEV *S = SE->getSCEVAtScope(ICmp->getOperand(IVOperIdx), ICmpLoop);  in makeIVComparisonInvariant()
220   const SCEV *X = SE->getSCEVAtScope(ICmp->getOperand(1 - IVOperIdx), ICmpLoop);  in makeIVComparisonInvariant()
221   auto LIP = SE->getLoopInvariantPredicate(Pred, S, X, L, ICmp);  in makeIVComparisonInvariant()
239   LLVM_DEBUG(dbgs() << "INDVARS: Simplified comparison: " << *ICmp << '\n');  in makeIVComparisonInvariant()
240   ICmp->setPredicate(InvariantPredicate);  in makeIVComparisonInvariant()
241   ICmp->setOperand(0, NewLHS);  in makeIVComparisonInvariant()
242   ICmp->setOperand(1, NewRHS);  in makeIVComparisonInvariant()
249 void SimplifyIndvar::eliminateIVComparison(ICmpInst *ICmp,  in eliminateIVComparison()  argument
252   ICmpInst::Predicate Pred = ICmp->getPredicate();  in eliminateIVComparison()
254   if (IVOperand != ICmp->getOperand(0)) {  in eliminateIVComparison()
256     assert(IVOperand == ICmp->getOperand(1) && "Can't find IVOperand");  in eliminateIVComparison()
263   const Loop *ICmpLoop = LI->getLoopFor(ICmp->getParent());  in eliminateIVComparison()
264   const SCEV *S = SE->getSCEVAtScope(ICmp->getOperand(IVOperIdx), ICmpLoop);  in eliminateIVComparison()
265   const SCEV *X = SE->getSCEVAtScope(ICmp->getOperand(1 - IVOperIdx), ICmpLoop);  in eliminateIVComparison()
270   for (auto *U : ICmp->users())  in eliminateIVComparison()
274     SE->forgetValue(ICmp);  in eliminateIVComparison()
275     ICmp->replaceAllUsesWith(ConstantInt::getBool(ICmp->getContext(), *Ev));  in eliminateIVComparison()
276     DeadInsts.emplace_back(ICmp);  in eliminateIVComparison()
277     LLVM_DEBUG(dbgs() << "INDVARS: Eliminated comparison: " << *ICmp << '\n');  in eliminateIVComparison()
278   } else if (makeIVComparisonInvariant(ICmp, IVOperand)) {  in eliminateIVComparison()
287     assert(ICmp->getPredicate() == OriginalPred && "Predicate changed?");  in eliminateIVComparison()
288     LLVM_DEBUG(dbgs() << "INDVARS: Turn to unsigned comparison: " << *ICmp  in eliminateIVComparison()
290     ICmp->setPredicate(ICmpInst::getUnsignedPredicate(OriginalPred));  in eliminateIVComparison()
352   ICmpInst *ICmp = new ICmpInst(Rem->getIterator(), ICmpInst::ICMP_EQ, N, D);  in replaceRemWithNumeratorOrZero()  local
354       SelectInst::Create(ICmp, ConstantInt::get(T, 0), N, "iv.rem", Rem->getIterator());  in replaceRemWithNumeratorOrZero()
596   if (ICmpInst *ICmp = dyn_cast<ICmpInst>(UseInst)) {  in eliminateIVUser()  local
597     eliminateIVComparison(ICmp, IVOperand);  in eliminateIVUser()
1704     if (auto *ICmp = dyn_cast<ICmpInst>(User)) {  in widenWithVariantUse()  local
1705       auto Pred = ICmp->getPredicate();  in widenWithVariantUse()
1714       ICmpUsers.push_back(ICmp);  in widenWithVariantUse()