5923   auto KnownStart = computeKnownBits(Start, DL, 0, &AC, nullptr, &DT);  in getRangeForUnknownRecurrence()  local
5925   assert(KnownStart.getBitWidth() == BitWidth &&  in getRangeForUnknownRecurrence()
5945     auto KnownEnd = KnownBits::ashr(KnownStart,  in getRangeForUnknownRecurrence()
5947     if (KnownStart.isNonNegative())  in getRangeForUnknownRecurrence()
5950                                         KnownStart.getMaxValue() + 1);  in getRangeForUnknownRecurrence()
5951     if (KnownStart.isNegative())  in getRangeForUnknownRecurrence()
5953       return ConstantRange::getNonEmpty(KnownStart.getMinValue(),  in getRangeForUnknownRecurrence()
5963     auto KnownEnd = KnownBits::lshr(KnownStart,  in getRangeForUnknownRecurrence()
5966                                       KnownStart.getMaxValue() + 1);  in getRangeForUnknownRecurrence()
5970     auto KnownEnd = KnownBits::shl(KnownStart,  in getRangeForUnknownRecurrence()
5972     if (TotalShift.ult(KnownStart.countMinLeadingZeros()))  in getRangeForUnknownRecurrence()
5973       return ConstantRange(KnownStart.getMinValue(),  in getRangeForUnknownRecurrence()