925                                                  ZExtInst &Zext) {  in transformZExtICmp()  argument
945       if (In->getType() != Zext.getType())  in transformZExtICmp()
946         In = Builder.CreateIntCast(In, Zext.getType(), false /*ZExt*/);  in transformZExtICmp()
948       return replaceInstUsesWith(Zext, In);  in transformZExtICmp()
959       KnownBits Known = computeKnownBits(Cmp->getOperand(0), 0, &Zext);  in transformZExtICmp()
963                            (Zext.getType()->getScalarSizeInBits() != ShAmt + 1);  in transformZExtICmp()
965           (Cmp->getOperand(0)->getType() == Zext.getType() ||  in transformZExtICmp()
979         if (Zext.getType() == In->getType())  in transformZExtICmp()
980           return replaceInstUsesWith(Zext, In);  in transformZExtICmp()
982         Value *IntCast = Builder.CreateIntCast(In, Zext.getType(), false);  in transformZExtICmp()
983         return replaceInstUsesWith(Zext, IntCast);  in transformZExtICmp()
988   if (Cmp->isEquality() && Zext.getType() == Cmp->getOperand(0)->getType()) {  in transformZExtICmp()
1000       return replaceInstUsesWith(Zext, And1);  in transformZExtICmp()
1138 Instruction *InstCombinerImpl::visitZExt(ZExtInst &Zext) {  in visitZExt()  argument
1141   if (Zext.hasOneUse() && isa<TruncInst>(Zext.user_back()) &&  in visitZExt()
1142       !isa<Constant>(Zext.getOperand(0)))  in visitZExt()
1146   if (Instruction *Result = commonCastTransforms(Zext))  in visitZExt()
1149   Value *Src = Zext.getOperand(0);  in visitZExt()
1150   Type *SrcTy = Src->getType(), *DestTy = Zext.getType();  in visitZExt()
1153   if (SrcTy->isIntOrIntVectorTy(1) && Zext.hasNonNeg())  in visitZExt()
1154     return replaceInstUsesWith(Zext, Constant::getNullValue(Zext.getType()));  in visitZExt()
1159       canEvaluateZExtd(Src, DestTy, BitsToClear, *this, &Zext)) {  in visitZExt()
1167                << Zext << '\n');  in visitZExt()
1174         replaceAllDbgUsesWith(*SrcOp, *Res, Zext, DT);  in visitZExt()
1184                              0, &Zext))  in visitZExt()
1185       return replaceInstUsesWith(Zext, Res);  in visitZExt()
1231     return transformZExtICmp(Cmp, Zext);  in visitZExt()
1261     if (Zext.getFunction() &&  in visitZExt()
1262         Zext.getFunction()->hasFnAttribute(Attribute::VScaleRange)) {  in visitZExt()
1264           Zext.getFunction()->getFnAttribute(Attribute::VScaleRange);  in visitZExt()
1269           return replaceInstUsesWith(Zext, VScale);  in visitZExt()
1275   if (!Zext.hasNonNeg()) {  in visitZExt()
1277     if (Zext.hasOneUse() &&  in visitZExt()
1280         match(Zext.user_back(), m_Shift(m_Value(), m_Specific(&Zext)))) {  in visitZExt()
1281       Zext.setNonNeg();  in visitZExt()
1282       return &Zext;  in visitZExt()
1285     if (isKnownNonNegative(Src, SQ.getWithInstruction(&Zext))) {  in visitZExt()
1286       Zext.setNonNeg();  in visitZExt()
1287       return &Zext;  in visitZExt()