3719     ConstantSDNode *CstLow = nullptr, *CstHigh = nullptr;  in computeKnownBits()  local
3722         CstHigh =  in computeKnownBits()
3724     if (CstLow && CstHigh) {  in computeKnownBits()
3726         std::swap(CstLow, CstHigh);  in computeKnownBits()
3729       const APInt &ValueHigh = CstHigh->getAPIntValue();  in computeKnownBits()
4123     ConstantSDNode *CstLow = nullptr, *CstHigh = nullptr;  in ComputeNumSignBits()  local
4126         CstHigh =  in ComputeNumSignBits()
4128     if (CstLow && CstHigh) {  in ComputeNumSignBits()
4130         std::swap(CstLow, CstHigh);  in ComputeNumSignBits()
4131       if (CstLow->getAPIntValue().sle(CstHigh->getAPIntValue())) {  in ComputeNumSignBits()
4133         Tmp2 = CstHigh->getAPIntValue().getNumSignBits();  in ComputeNumSignBits()