311   unsigned MinShiftAmount = RHS.getMinValue().getLimitedValue(BitWidth);  in shl()  local
312   if (MinShiftAmount == 0 && ShAmtNonZero)  in shl()
313     MinShiftAmount = 1;  in shl()
315     Known.Zero.setLowBits(MinShiftAmount);  in shl()
316     if (NUW && NSW && MinShiftAmount != 0)  in shl()
334   if (MinShiftAmount == 0 && MaxShiftAmount == BitWidth - 1 &&  in shl()
353   for (unsigned ShiftAmt = MinShiftAmount; ShiftAmt <= MaxShiftAmount;  in shl()
384   unsigned MinShiftAmount = RHS.getMinValue().getLimitedValue(BitWidth);  in lshr()  local
385   if (MinShiftAmount == 0 && ShAmtNonZero)  in lshr()
386     MinShiftAmount = 1;  in lshr()
388     Known.Zero.setHighBits(MinShiftAmount);  in lshr()
399     if (FirstOne < MinShiftAmount) {  in lshr()
411   for (unsigned ShiftAmt = MinShiftAmount; ShiftAmt <= MaxShiftAmount;  in lshr()
440   unsigned MinShiftAmount = RHS.getMinValue().getLimitedValue(BitWidth);  in ashr()  local
441   if (MinShiftAmount == 0 && ShAmtNonZero)  in ashr()
442     MinShiftAmount = 1;  in ashr()
444     if (MinShiftAmount == BitWidth) {  in ashr()
459     if (FirstOne < MinShiftAmount) {  in ashr()
471   for (unsigned ShiftAmt = MinShiftAmount; ShiftAmt <= MaxShiftAmount;  in ashr()