2299   APInt KnownZero, KnownOne;  in isU24()  local
2301   DAG.computeKnownBits(Op, KnownZero, KnownOne);  in isU24()
2303   return (VT.getSizeInBits() - KnownZero.countLeadingOnes()) <= 24;  in isU24()
2323   APInt KnownZero, KnownOne;  in simplifyI24()  local
2325   if (TLI.SimplifyDemandedBits(Op, Demanded, KnownZero, KnownOne, TLO))  in simplifyI24()
2562       APInt KnownZero, KnownOne;  in PerformDAGCombine()  local
2568                                    KnownZero, KnownOne, TLO)) {  in PerformDAGCombine()
2777                                       APInt &KnownZero,  in computeKnownBitsForMinMax()  argument
2786   KnownZero = Op0Zero & Op1Zero;  in computeKnownBitsForMinMax()
2792   APInt &KnownZero,  in computeKnownBitsForTargetNode()  argument
2797   KnownZero = KnownOne = APInt(KnownOne.getBitWidth(), 0); // Don't know anything.  in computeKnownBitsForTargetNode()
2814                                 KnownZero, KnownOne, DAG, Depth);  in computeKnownBitsForTargetNode()
2824     KnownZero = APInt::getHighBitsSet(32, 31);  in computeKnownBitsForTargetNode()
2838       KnownZero = APInt::getHighBitsSet(BitWidth, BitWidth - Width);  in computeKnownBitsForTargetNode()