676 Constant *llvm::ConstantFoldBinaryInstruction(unsigned Opcode, Constant *C1,  in ConstantFoldBinaryInstruction()  argument
683           Opcode, C1->getType(), /*AllowRHSIdentity*/ false)) {  in ConstantFoldBinaryInstruction()
684     if (C1 == Identity)  in ConstantFoldBinaryInstruction()
687       return C1;  in ConstantFoldBinaryInstruction()
689                  Opcode, C1->getType(), /*AllowRHSIdentity*/ true)) {  in ConstantFoldBinaryInstruction()
691       return C1;  in ConstantFoldBinaryInstruction()
695   if (isa<PoisonValue>(C1) || isa<PoisonValue>(C2))  in ConstantFoldBinaryInstruction()
696     return PoisonValue::get(C1->getType());  in ConstantFoldBinaryInstruction()
700   bool IsScalableVector = isa<ScalableVectorType>(C1->getType());  in ConstantFoldBinaryInstruction()
702       (!C1->getType()->isVectorTy() || IsScalableVector) &&  in ConstantFoldBinaryInstruction()
703       (isa<UndefValue>(C1) || isa<UndefValue>(C2));  in ConstantFoldBinaryInstruction()
707       if (isa<UndefValue>(C1) && isa<UndefValue>(C2))  in ConstantFoldBinaryInstruction()
710         return Constant::getNullValue(C1->getType());  in ConstantFoldBinaryInstruction()
714       return UndefValue::get(C1->getType());  in ConstantFoldBinaryInstruction()
716       if (isa<UndefValue>(C1) && isa<UndefValue>(C2)) // undef & undef -> undef  in ConstantFoldBinaryInstruction()
717         return C1;  in ConstantFoldBinaryInstruction()
718       return Constant::getNullValue(C1->getType());   // undef & X -> 0  in ConstantFoldBinaryInstruction()
721       if (isa<UndefValue>(C1) && isa<UndefValue>(C2))  in ConstantFoldBinaryInstruction()
722         return C1;  in ConstantFoldBinaryInstruction()
725       if (match(C1, m_APInt(CV)) || match(C2, m_APInt(CV)))  in ConstantFoldBinaryInstruction()
727           return UndefValue::get(C1->getType());  in ConstantFoldBinaryInstruction()
730       return Constant::getNullValue(C1->getType());  in ConstantFoldBinaryInstruction()
739       return Constant::getNullValue(C1->getType());  in ConstantFoldBinaryInstruction()
747       return Constant::getNullValue(C1->getType());  in ConstantFoldBinaryInstruction()
749       if (isa<UndefValue>(C1) && isa<UndefValue>(C2)) // undef | undef -> undef  in ConstantFoldBinaryInstruction()
750         return C1;  in ConstantFoldBinaryInstruction()
751       return Constant::getAllOnesValue(C1->getType()); // undef | X -> ~0  in ConstantFoldBinaryInstruction()
757       return Constant::getNullValue(C1->getType());  in ConstantFoldBinaryInstruction()
764       return Constant::getNullValue(C1->getType());  in ConstantFoldBinaryInstruction()
770       return Constant::getNullValue(C1->getType());  in ConstantFoldBinaryInstruction()
773       if (match(C1, m_NegZeroFP()) && isa<UndefValue>(C2))  in ConstantFoldBinaryInstruction()
781       if (isa<UndefValue>(C1) && isa<UndefValue>(C2))  in ConstantFoldBinaryInstruction()
782         return C1;  in ConstantFoldBinaryInstruction()
790       return ConstantFP::getNaN(C1->getType());  in ConstantFoldBinaryInstruction()
822       if (ConstantExpr *CE1 = dyn_cast<ConstantExpr>(C1)) {  in ConstantFoldBinaryInstruction()
866       if (ConstantExpr *CE1 = dyn_cast<ConstantExpr>(C1)) {  in ConstantFoldBinaryInstruction()
882   } else if (isa<ConstantInt>(C1)) {  in ConstantFoldBinaryInstruction()
886                  ? ConstantExpr::get(Opcode, C2, C1)  in ConstantFoldBinaryInstruction()
887                  : ConstantFoldBinaryInstruction(Opcode, C2, C1);  in ConstantFoldBinaryInstruction()
890   if (ConstantInt *CI1 = dyn_cast<ConstantInt>(C1)) {  in ConstantFoldBinaryInstruction()
928         return PoisonValue::get(C1->getType()); // too big shift is poison  in ConstantFoldBinaryInstruction()
932         return PoisonValue::get(C1->getType()); // too big shift is poison  in ConstantFoldBinaryInstruction()
936         return PoisonValue::get(C1->getType()); // too big shift is poison  in ConstantFoldBinaryInstruction()
948       if (CI1->isZero()) return C1;  in ConstantFoldBinaryInstruction()
953   } else if (ConstantFP *CFP1 = dyn_cast<ConstantFP>(C1)) {  in ConstantFoldBinaryInstruction()
963         return ConstantFP::get(C1->getContext(), C3V);  in ConstantFoldBinaryInstruction()
966         return ConstantFP::get(C1->getContext(), C3V);  in ConstantFoldBinaryInstruction()
969         return ConstantFP::get(C1->getContext(), C3V);  in ConstantFoldBinaryInstruction()
972         return ConstantFP::get(C1->getContext(), C3V);  in ConstantFoldBinaryInstruction()
975         return ConstantFP::get(C1->getContext(), C3V);  in ConstantFoldBinaryInstruction()
978   } else if (auto *VTy = dyn_cast<VectorType>(C1->getType())) {  in ConstantFoldBinaryInstruction()
983       if (Constant *C1Splat = C1->getSplatValue()) {  in ConstantFoldBinaryInstruction()
1000         Constant *LHS = ConstantExpr::getExtractElement(C1, ExtractIdx);  in ConstantFoldBinaryInstruction()
1019   if (ConstantExpr *CE1 = dyn_cast<ConstantExpr>(C1)) {  in ConstantFoldBinaryInstruction()
1035       return ConstantFoldBinaryInstruction(Opcode, C2, C1);  in ConstantFoldBinaryInstruction()
1039   if (C1->getType()->isIntegerTy(1)) {  in ConstantFoldBinaryInstruction()
1043       return ConstantExpr::getXor(C1, C2);  in ConstantFoldBinaryInstruction()
1049       return C1;  in ConstantFoldBinaryInstruction()
1054       return C1;  in ConstantFoldBinaryInstruction()
1059       return ConstantInt::getFalse(C1->getContext());  in ConstantFoldBinaryInstruction()
1210                                                Constant *C1, Constant *C2) {  in ConstantFoldCompareInstruction()  argument
1212   if (VectorType *VT = dyn_cast<VectorType>(C1->getType()))  in ConstantFoldCompareInstruction()
1213     ResultTy = VectorType::get(Type::getInt1Ty(C1->getContext()),  in ConstantFoldCompareInstruction()
1216     ResultTy = Type::getInt1Ty(C1->getContext());  in ConstantFoldCompareInstruction()
1226   if (isa<PoisonValue>(C1) || isa<PoisonValue>(C2))  in ConstantFoldCompareInstruction()
1229   if (isa<UndefValue>(C1) || isa<UndefValue>(C2)) {  in ConstantFoldCompareInstruction()
1234     if (ICmpInst::isEquality(Predicate) || (isIntegerPredicate && C1 == C2))  in ConstantFoldCompareInstruction()
1259   if (C1->getType()->isIntegerTy(1)) {  in ConstantFoldCompareInstruction()
1263         return ConstantExpr::getXor(C1, ConstantExpr::getNot(C2));  in ConstantFoldCompareInstruction()
1264       return ConstantExpr::getXor(ConstantExpr::getNot(C1), C2);  in ConstantFoldCompareInstruction()
1266       return ConstantExpr::getXor(C1, C2);  in ConstantFoldCompareInstruction()
1272   if (isa<ConstantInt>(C1) && isa<ConstantInt>(C2)) {  in ConstantFoldCompareInstruction()
1273     const APInt &V1 = cast<ConstantInt>(C1)->getValue();  in ConstantFoldCompareInstruction()
1276   } else if (isa<ConstantFP>(C1) && isa<ConstantFP>(C2)) {  in ConstantFoldCompareInstruction()
1277     const APFloat &C1V = cast<ConstantFP>(C1)->getValueAPF();  in ConstantFoldCompareInstruction()
1280   } else if (auto *C1VTy = dyn_cast<VectorType>(C1->getType())) {  in ConstantFoldCompareInstruction()
1283     if (Constant *C1Splat = C1->getSplatValue())  in ConstantFoldCompareInstruction()
1297     Type *Ty = IntegerType::get(C1->getContext(), 32);  in ConstantFoldCompareInstruction()
1302           ConstantExpr::getExtractElement(C1, ConstantInt::get(Ty, I));  in ConstantFoldCompareInstruction()
1312   if (C1->getType()->isFPOrFPVectorTy()) {  in ConstantFoldCompareInstruction()
1313     if (C1 == C2) {  in ConstantFoldCompareInstruction()
1323     switch (evaluateICmpRelation(C1, C2)) {  in ConstantFoldCompareInstruction()
1408     if ((!isa<ConstantExpr>(C1) && isa<ConstantExpr>(C2)) ||  in ConstantFoldCompareInstruction()
1409         (C1->isNullValue() && !C2->isNullValue())) {  in ConstantFoldCompareInstruction()
1414       return ConstantExpr::getICmp(Predicate, C2, C1);  in ConstantFoldCompareInstruction()