message: Minor change to one comment.
diff: @@ -220,7 +220,7 @@ bool IsReductionFromOrToContiguousDimensions(const HloInstruction& reduce) {
  }
  // For column reduction, the tile block is tize_size_y x tile_size_x, and we
  - // are reducing along tile_size_y. tile_size_y needs to be
  + // are reducing along tile_size_y. Only tile_size_y needs to be
  // large enough to make the tiling implementation efficient.
  return dims_in_elem[1] >= kWarpSize;
  }
  