88     bool makeIVComparisonInvariant(ICmpInst *ICmp, Instruction *IVOperand);
89     void eliminateIVComparison(ICmpInst *ICmp, Instruction *IVOperand);
196 bool SimplifyIndvar::makeIVComparisonInvariant(ICmpInst *ICmp,  in makeIVComparisonInvariant()  argument
199   ICmpInst::Predicate Pred = ICmp->getPredicate();  in makeIVComparisonInvariant()
200   if (IVOperand != ICmp->getOperand(0)) {  in makeIVComparisonInvariant()
202     assert(IVOperand == ICmp->getOperand(1) && "Can't find IVOperand");  in makeIVComparisonInvariant()
209   const Loop *ICmpLoop = LI->getLoopFor(ICmp->getParent());  in makeIVComparisonInvariant()
210   const SCEV *S = SE->getSCEVAtScope(ICmp->getOperand(IVOperIdx), ICmpLoop);  in makeIVComparisonInvariant()
211   const SCEV *X = SE->getSCEVAtScope(ICmp->getOperand(1 - IVOperIdx), ICmpLoop);  in makeIVComparisonInvariant()
228   CheapExpansions[S] = ICmp->getOperand(IVOperIdx);  in makeIVComparisonInvariant()
229   CheapExpansions[X] = ICmp->getOperand(1 - IVOperIdx);  in makeIVComparisonInvariant()
257   LLVM_DEBUG(dbgs() << "INDVARS: Simplified comparison: " << *ICmp << '\n');  in makeIVComparisonInvariant()
258   ICmp->setPredicate(InvariantPredicate);  in makeIVComparisonInvariant()
259   ICmp->setOperand(0, NewLHS);  in makeIVComparisonInvariant()
260   ICmp->setOperand(1, NewRHS);  in makeIVComparisonInvariant()
266 void SimplifyIndvar::eliminateIVComparison(ICmpInst *ICmp,  in eliminateIVComparison()  argument
269   ICmpInst::Predicate Pred = ICmp->getPredicate();  in eliminateIVComparison()
271   if (IVOperand != ICmp->getOperand(0)) {  in eliminateIVComparison()
273     assert(IVOperand == ICmp->getOperand(1) && "Can't find IVOperand");  in eliminateIVComparison()
280   const Loop *ICmpLoop = LI->getLoopFor(ICmp->getParent());  in eliminateIVComparison()
281   const SCEV *S = SE->getSCEVAtScope(ICmp->getOperand(IVOperIdx), ICmpLoop);  in eliminateIVComparison()
282   const SCEV *X = SE->getSCEVAtScope(ICmp->getOperand(1 - IVOperIdx), ICmpLoop);  in eliminateIVComparison()
287   for (auto *U : ICmp->users())  in eliminateIVComparison()
291     ICmp->replaceAllUsesWith(ConstantInt::getBool(ICmp->getContext(), *Ev));  in eliminateIVComparison()
292     DeadInsts.emplace_back(ICmp);  in eliminateIVComparison()
293     LLVM_DEBUG(dbgs() << "INDVARS: Eliminated comparison: " << *ICmp << '\n');  in eliminateIVComparison()
294   } else if (makeIVComparisonInvariant(ICmp, IVOperand)) {  in eliminateIVComparison()
303     assert(ICmp->getPredicate() == OriginalPred && "Predicate changed?");  in eliminateIVComparison()
304     LLVM_DEBUG(dbgs() << "INDVARS: Turn to unsigned comparison: " << *ICmp  in eliminateIVComparison()
306     ICmp->setPredicate(ICmpInst::getUnsignedPredicate(OriginalPred));  in eliminateIVComparison()
366   ICmpInst *ICmp = new ICmpInst(Rem, ICmpInst::ICMP_EQ, N, D);  in replaceRemWithNumeratorOrZero()  local
368       SelectInst::Create(ICmp, ConstantInt::get(T, 0), N, "iv.rem", Rem);  in replaceRemWithNumeratorOrZero()
606   if (ICmpInst *ICmp = dyn_cast<ICmpInst>(UseInst)) {  in eliminateIVUser()  local
607     eliminateIVComparison(ICmp, IVOperand);  in eliminateIVUser()
1571     if (auto *ICmp = dyn_cast<ICmpInst>(User)) {  in widenWithVariantUse()  local
1572       auto Pred = ICmp->getPredicate();  in widenWithVariantUse()
1581       ICmpUsers.push_back(ICmp);  in widenWithVariantUse()