2042   APInt KnownZero, KnownOne;  in MaskedValueIsZero()  local
2043   computeKnownBits(Op, KnownZero, KnownOne, Depth);  in MaskedValueIsZero()
2050                                     APInt &KnownOne, unsigned Depth) const {  in computeKnownBits()  argument
2053   KnownZero = KnownOne = APInt(BitWidth, 0);   // Don't know anything.  in computeKnownBits()
2062     KnownOne = cast<ConstantSDNode>(Op)->getAPIntValue();  in computeKnownBits()
2063     KnownZero = ~KnownOne;  in computeKnownBits()
2067     computeKnownBits(Op.getOperand(1), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2071     KnownOne &= KnownOne2;  in computeKnownBits()
2076     computeKnownBits(Op.getOperand(1), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2082     KnownOne |= KnownOne2;  in computeKnownBits()
2085     computeKnownBits(Op.getOperand(1), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2089     APInt KnownZeroOut = (KnownZero & KnownZero2) | (KnownOne & KnownOne2);  in computeKnownBits()
2091     KnownOne = (KnownZero & KnownOne2) | (KnownOne & KnownZero2);  in computeKnownBits()
2096     computeKnownBits(Op.getOperand(1), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2103     KnownOne.clearAllBits();  in computeKnownBits()
2135     computeKnownBits(Op.getOperand(2), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2139     KnownOne &= KnownOne2;  in computeKnownBits()
2143     computeKnownBits(Op.getOperand(3), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2147     KnownOne &= KnownOne2;  in computeKnownBits()
2183       computeKnownBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2185       KnownOne  <<= ShAmt;  in computeKnownBits()
2199       computeKnownBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2201       KnownOne  = KnownOne.lshr(ShAmt);  in computeKnownBits()
2219       computeKnownBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2221       KnownOne  = KnownOne.lshr(ShAmt);  in computeKnownBits()
2229       } else if (KnownOne.intersects(SignBit)) {  in computeKnownBits()
2230         KnownOne  |= HighBits;  // New bits are known one.  in computeKnownBits()
2251     computeKnownBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2252     KnownOne &= InputDemandedBits;  in computeKnownBits()
2259       KnownOne  &= ~NewBits;  in computeKnownBits()
2260     } else if (KnownOne.intersects(InSignBit)) {   // Input sign bit known set  in computeKnownBits()
2261       KnownOne  |= NewBits;  in computeKnownBits()
2265       KnownOne  &= ~NewBits;  in computeKnownBits()
2276     KnownOne.clearAllBits();  in computeKnownBits()
2288         computeKnownBitsFromRangeMetadata(*Ranges, KnownZero, KnownOne);  in computeKnownBits()
2297     KnownOne = KnownOne.trunc(InBits);  in computeKnownBits()
2298     computeKnownBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2300     KnownOne = KnownOne.zext(BitWidth);  in computeKnownBits()
2310     KnownOne = KnownOne.trunc(InBits);  in computeKnownBits()
2311     computeKnownBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2315     bool SignBitKnownOne  = KnownOne.isNegative();  in computeKnownBits()
2318     KnownOne = KnownOne.zext(BitWidth);  in computeKnownBits()
2324       KnownOne  |= NewBits;  in computeKnownBits()
2331     KnownOne = KnownOne.trunc(InBits);  in computeKnownBits()
2332     computeKnownBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2334     KnownOne = KnownOne.zext(BitWidth);  in computeKnownBits()
2341     KnownOne = KnownOne.zext(InBits);  in computeKnownBits()
2342     computeKnownBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2344     KnownOne = KnownOne.trunc(BitWidth);  in computeKnownBits()
2350     computeKnownBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2352     KnownOne  &= (~KnownZero);  in computeKnownBits()
2426         KnownOne = KnownOne2 & LowBits;  in computeKnownBits()
2436           KnownOne |= ~LowBits;  in computeKnownBits()
2437         assert((KnownZero & KnownOne) == 0&&"Bits known to be one AND zero?");  in computeKnownBits()
2450         KnownOne = KnownOne2 & LowBits;  in computeKnownBits()
2457     computeKnownBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2462     KnownOne.clearAllBits();  in computeKnownBits()
2467     computeKnownBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);  in computeKnownBits()
2474     KnownOne = KnownOne.getHiBits(KnownOne.getBitWidth() - Index * BitWidth);  in computeKnownBits()
2478     KnownOne = KnownOne.trunc(BitWidth);  in computeKnownBits()
2491     KnownOne = Op0One & Op1One;  in computeKnownBits()
2511     TLI->computeKnownBitsForTargetNode(Op, KnownZero, KnownOne, *this, Depth);  in computeKnownBits()
2515   assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?");  in computeKnownBits()
2657         APInt KnownZero, KnownOne;  in ComputeNumSignBits()  local
2658         computeKnownBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);  in ComputeNumSignBits()
2682         APInt KnownZero, KnownOne;  in ComputeNumSignBits()  local
2683         computeKnownBits(Op.getOperand(1), KnownZero, KnownOne, Depth+1);  in ComputeNumSignBits()
2751   APInt KnownZero, KnownOne;  in ComputeNumSignBits()  local
2752   computeKnownBits(Op, KnownZero, KnownOne, Depth);  in ComputeNumSignBits()
2757   } else if (KnownOne.isNegative()) {  // sign bit is 1;  in ComputeNumSignBits()
2758     Mask = KnownOne;  in ComputeNumSignBits()
7070     APInt KnownZero(PtrWidth, 0), KnownOne(PtrWidth, 0);  in InferPtrAlignment()  local
7071     llvm::computeKnownBits(const_cast<GlobalValue *>(GV), KnownZero, KnownOne,  in InferPtrAlignment()