message: Fix bug in LoopTiling where a loop with trip count of 1 caused a division by zero
diff: @@ -293,7 +293,7 @@ static void adjustToDivisorsOfTripCounts(ArrayRef<AffineForOp> band,
  // Adjust the tile size to largest factor of the trip count less than
  // tSize.
  uint64_t constTripCount = mayConst.getValue();
  - if (tSizeAdjusted > constTripCount / 2)
  + if (constTripCount > 1 && tSizeAdjusted > constTripCount / 2)
  tSizeAdjusted = constTripCount / 2;
  while (constTripCount % tSizeAdjusted != 0)
  tSizeAdjusted--;
  