Julia 1.9 error: @turbo for empty iterator

[kongdd]

using LoopVectorization

Nu = 0
@turbo for i ∈ 3:2
  Nu += 1
end

Nu

ERROR: DivideError: integer division error
Stacktrace:
  [1] div
    @ .\int.jl:295 [inlined]
  [2] div
    @ .\div.jl:308 [inlined]
  [3] div
    @ .\div.jl:363 [inlined]
  [4] cld
    @ .\div.jl:320 [inlined]
  [5] evaluate_cost_unroll(ls::LoopVectorization.LoopSet, order::Vector{Symbol}, vloopsym::Symbol, max_cost::Float64, sld::Vector{Vector{Symbol}})
    @ LoopVectorization C:\Users\hydro\.julia\packages\LoopVectorization\5ukqQ\src\modeling\determinestrategy.jl:214 
  [6] choose_unroll_order(ls::LoopVectorization.LoopSet, lowest_cost::Float64, sld::Vector{Vector{Symbol}}, v::Int64)

    @ LoopVectorization C:\Users\hydro\.julia\packages\LoopVectorization\5ukqQ\src\modeling\determinestrategy.jl:1644

  [7] choose_order_cost(ls::LoopVectorization.LoopSet, v::Int64)
    @ LoopVectorization C:\Users\hydro\.julia\packages\LoopVectorization\5ukqQ\src\modeling\determinestrategy.jl:1821

  [8] choose_order_cost
    @ C:\Users\hydro\.julia\packages\LoopVectorization\5ukqQ\src\modeling\determinestrategy.jl:1809 [inlined]        
  [9] lower
    @ C:\Users\hydro\.julia\packages\LoopVectorization\5ukqQ\src\codegen\lowering.jl:1290 [inlined]
 [10] lower_and_split_loops(ls::LoopVectorization.LoopSet, inline::Int64)
    @ LoopVectorization C:\Users\hydro\.julia\packages\LoopVectorization\5ukqQ\src\codegen\split_loops.jl:141        
 [11] avx_body(ls::LoopVectorization.LoopSet, UNROLL::Tuple{Bool, Int8, Int8, Int8, Bool, Int64, Int64, Int64, Int64, UInt64, Int64, Bool})
    @ LoopVectorization C:\Users\hydro\.julia\packages\LoopVectorization\5ukqQ\src\reconstruct_loopset.jl:1014       
 [12] #s221#85
    @ C:\Users\hydro\.julia\packages\LoopVectorization\5ukqQ\src\reconstruct_loopset.jl:1162 [inlined]
 [13] var"#s221#85"(::Any, ::Any, ::Any, ::Any, ::Any, ::Any, ::Any, vargs#::Any, ::Any, #unused#::Type, #unused#::Type, #unused#::Type, #unused#::Type, #unused#::Type, #unused#::Any, var#arguments#::Any)
    @ LoopVectorization .\none:0
 [14] (::Core.GeneratedFunctionStub)(::Any, ::Vararg{Any})
    @ Core .\boot.jl:602
 [15] top-level scope

[kongdd]

NaNStatistics.jl come across this issue, at: #brenhinkeller/NaNStatistics.jl/issues/35

https://github.com/brenhinkeller/NaNStatistics.jl/blob/9427bd419f67beefe117a36205ad8db26a09ff0f/src/Sorting/quicksort.jl#L85-L87

[chriselrod]

@turbo check_empty=true

julia> @turbo check_empty=true for i ∈ 3:2
         Nu += 1
       end

[kongdd]

Got it. Thank u very much!