Lines Matching defs:Zext

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