3494     ConstantSDNode *CstLow = nullptr, *CstHigh = nullptr;  in computeKnownBits()  local
3497         CstHigh =  in computeKnownBits()
3499     if (CstLow && CstHigh) {  in computeKnownBits()
3501         std::swap(CstLow, CstHigh);  in computeKnownBits()
3504       const APInt &ValueHigh = CstHigh->getAPIntValue();  in computeKnownBits()
3863     ConstantSDNode *CstLow = nullptr, *CstHigh = nullptr;  in ComputeNumSignBits()  local
3866         CstHigh =  in ComputeNumSignBits()
3868     if (CstLow && CstHigh) {  in ComputeNumSignBits()
3870         std::swap(CstLow, CstHigh);  in ComputeNumSignBits()
3871       if (CstLow->getAPIntValue().sle(CstHigh->getAPIntValue())) {  in ComputeNumSignBits()
3873         Tmp2 = CstHigh->getAPIntValue().getNumSignBits();  in ComputeNumSignBits()