6336   auto KnownStart = computeKnownBits(Start, DL, 0, &AC, nullptr, &DT);  in getRangeForUnknownRecurrence()  local
6338   assert(KnownStart.getBitWidth() == BitWidth &&  in getRangeForUnknownRecurrence()
6358     auto KnownEnd = KnownBits::ashr(KnownStart,  in getRangeForUnknownRecurrence()
6360     if (KnownStart.isNonNegative())  in getRangeForUnknownRecurrence()
6363                                         KnownStart.getMaxValue() + 1);  in getRangeForUnknownRecurrence()
6364     if (KnownStart.isNegative())  in getRangeForUnknownRecurrence()
6366       return ConstantRange::getNonEmpty(KnownStart.getMinValue(),  in getRangeForUnknownRecurrence()
6376     auto KnownEnd = KnownBits::lshr(KnownStart,  in getRangeForUnknownRecurrence()
6379                                       KnownStart.getMaxValue() + 1);  in getRangeForUnknownRecurrence()
6383     auto KnownEnd = KnownBits::shl(KnownStart,  in getRangeForUnknownRecurrence()
6385     if (TotalShift.ult(KnownStart.countMinLeadingZeros()))  in getRangeForUnknownRecurrence()
6386       return ConstantRange(KnownStart.getMinValue(),  in getRangeForUnknownRecurrence()