Lines Matching defs:KnownUndef

3018   APInt KnownUndef, KnownZero;
3020       SimplifyDemandedVectorElts(Op, DemandedElts, KnownUndef, KnownZero, TLO);
3060   APInt KnownUndef = APInt::getZero(NumElts);
3072         KnownUndef.setBit(i);
3074   return KnownUndef;
3078     SDValue Op, const APInt &OriginalDemandedElts, APInt &KnownUndef,
3087   KnownUndef = KnownZero = APInt::getZero(NumElts);
3101     KnownUndef.setAllBits();
3111     KnownUndef.setAllBits();
3142       KnownUndef.setAllBits();
3159         APInt SrcUndef = KnownUndef.zextOrTrunc(NumSrcElts);
3166     KnownUndef.setHighBits(NumElts - 1);
3181       return SimplifyDemandedVectorElts(Src, DemandedElts, KnownUndef,
3235             KnownUndef.setBits(i * Scale, (i + 1) * Scale);
3257             KnownUndef.setBit(i);
3288             KnownUndef.setBit(i);
3299         KnownUndef.setBit(i);
3318       KnownUndef.insertBits(SubUndef, i * NumSubElts);
3364     if (SimplifyDemandedVectorElts(Src, DemandedSrcElts, KnownUndef, KnownZero,
3367     KnownUndef.insertBits(SubUndef, Idx);
3399     KnownUndef = SrcUndef.extractBits(NumElts, Idx);
3428       if (SimplifyDemandedVectorElts(Vec, DemandedVecElts, KnownUndef,
3432       KnownUndef.setBitVal(Idx, Scl.isUndef());
3442     // Without knowing the insertion index we can't set KnownUndef/KnownZero.
3469     KnownUndef = UndefLHS & UndefRHS;
3541         KnownUndef.setBit(i);
3544           KnownUndef.setBit(i);
3549           KnownUndef.setBit(i);
3567     KnownUndef = SrcUndef.zextOrTrunc(NumElts);
3578       if (DemandedElts.isSubsetOf(KnownUndef))
3580       KnownUndef.clearAllBits();
3642     KnownUndef = getKnownUndefForVectorBinop(Op, TLO.DAG, UndefLHS, UndefRHS);
3645     // TODO - use KnownUndef to relax the demandedelts?
3669     KnownUndef = UndefLHS & UndefRHS; // TODO: use getKnownUndefForVectorBinop?
3672     // TODO - use KnownUndef to relax the demandedelts?
3692     if (SimplifyDemandedVectorElts(Op0, DemandedElts0, KnownUndef, KnownZero,
3696     KnownUndef &= DemandedElts0;
3702     if (DemandedElts.isSubsetOf(SrcZero | KnownZero | SrcUndef | KnownUndef))
3710     KnownUndef &= SrcUndef;
3711     KnownUndef &= ~KnownZero;
3722     if (SimplifyDemandedVectorElts(Op.getOperand(0), DemandedElts, KnownUndef,
3733       if (DemandedElts.isSubsetOf(KnownUndef))
3735       KnownUndef.clearAllBits();
3742     if (SimplifyDemandedVectorElts(Op.getOperand(0), DemandedElts, KnownUndef,
3749       if (SimplifyDemandedVectorEltsForTargetNode(Op, DemandedElts, KnownUndef,
3762   assert((KnownUndef & KnownZero) == 0 && "Elements flagged as undef AND zero");
3766   if (DemandedElts.isSubsetOf(KnownUndef))
3829     SDValue Op, const APInt &DemandedElts, APInt &KnownUndef, APInt &KnownZero,