julia> Base.Test.@inferred digamma(3.0)
ERROR: return type Float64 does not match inferred return type Any
Stacktrace:
[1] error(::String) at ./error.jl:28
julia> Base.Test.@inferred digamma(complex(3.0))
0.9227843350984687 + 0.0im
julia> @code_warntype digamma(3.0)
Variables:
#self#::SpecialFunctions.#digamma
z@_2::Float64
x@_3::Float64
n::Int64
t::Float64
ψ::Any
x@_7::Any
y::Any
r::Any
s::Any
a6::Any
a5::Any
a4::Any
a3::Any
a2::Any
a1::Any
a0::Any
tt::Float64
#temp#@_19::Int64
ν::Int64
z@_21::Float64
#temp#@_22::Any
fy@_23::Float64
#temp#@_24::Float64
fy@_25::Float64
#temp#@_26::Bool
#temp#@_27::Int64
#temp#@_28::Float64
Body:
begin
z@_21::Float64 = z@_2::Float64
NewvarNode(:(n::Int64))
NewvarNode(:(t::Float64))
NewvarNode(:(ψ::Any))
x@_3::Float64 = z@_21::Float64
#= line 26 =#
$(Expr(:inbounds, false))
# meta: location float.jl <= 497
fy@_23::Float64 = (Base.sitofp)(Float64, 0)::Float64
# meta: pop location
$(Expr(:inbounds, :pop))
unless (Base.or_int)((Base.lt_float)(x@_3::Float64, fy@_23::Float64)::Bool, (Base.and_int)((Base.and_int)((Base.eq_float)(x@_3::Float64, fy@_23::Float64)::Bool, (Base.lt_float)(fy@_23::Float64, 9.223372036854776e18)::Bool)::Bool, (Base.sle_int)((Base.fptosi)(Int64, fy@_23::Float64)::Int64, 0)::Bool)::Bool)::Bool goto 35
#= line 27 =#
$(Expr(:inbounds, false))
# meta: location special/trig.jl cot 324
# meta: location math.jl tan 442
SSAValue(8) = $(Expr(:foreigncall, ("tan", "libopenlibm"), Float64, svec(Float64), :(:ccall), 1, :((Base.mul_float)(3.141592653589793, z@_21)::Float64)))
# meta: location math.jl nan_dom_err 323
unless (Base.and_int)((Base.ne_float)(SSAValue(8), SSAValue(8))::Bool, (Base.not_int)((Base.ne_float)((Base.mul_float)(3.141592653589793, z@_21::Float64)::Float64, (Base.mul_float)(3.141592653589793, z@_21::Float64)::Float64)::Bool)::Bool)::Bool goto 22
#temp#@_24::Float64 = (Base.Math.throw)($(Expr(:invoke, MethodInstance for DomainError(::Any, ::Any), :(Base.Math.DomainError), :((Base.mul_float)(3.141592653589793, z@_21)::Float64), "NaN result for non-NaN input."))::DomainError)::Union{}
goto 24
22:
#temp#@_24::Float64 = SSAValue(8)
24:
# meta: pop location
# meta: pop location
# meta: pop location
$(Expr(:inbounds, :pop))
ψ::Any = (Base.mul_float)((Base.neg_float)(3.141592653589793)::Float64, (Base.div_float)((Base.sitofp)(Float64, 1)::Float64, #temp#@_24::Float64)::Float64)::Float64
#= line 28 =#
z@_21::Float64 = (Base.sub_float)((Base.sitofp)(Float64, 1)::Float64, z@_21::Float64)::Float64
#= line 29 =#
x@_3::Float64 = z@_21::Float64
goto 38
35:
#= line 31 =#
ψ::Any = (Base.sitofp)(Float64, 0)::Float64
38:
#= line 33 =#
$(Expr(:inbounds, false))
# meta: location float.jl < 493
fy@_25::Float64 = (Base.sitofp)(Float64, 7)::Float64
# meta: pop location
$(Expr(:inbounds, :pop))
unless (Base.or_int)((Base.lt_float)(x@_3::Float64, fy@_25::Float64)::Bool, (Base.and_int)((Base.and_int)((Base.eq_float)(x@_3::Float64, fy@_25::Float64)::Bool, (Base.lt_float)(fy@_25::Float64, 9.223372036854776e18)::Bool)::Bool, (Base.slt_int)((Base.fptosi)(Int64, fy@_25::Float64)::Int64, 7)::Bool)::Bool)::Bool goto 90
#= line 35 =#
$(Expr(:inbounds, false))
# meta: location float.jl floor 334
# meta: location float.jl trunc 671
unless (Base.le_float)(-9.223372036854776e18, (Base.floor_llvm)(x@_3::Float64)::Float64)::Bool goto 53
#temp#@_26::Bool = (Base.lt_float)((Base.floor_llvm)(x@_3::Float64)::Float64, 9.223372036854776e18)::Bool
goto 55
53:
#temp#@_26::Bool = false
55:
unless #temp#@_26::Bool goto 60
#= line 672 =#
#temp#@_27::Int64 = (Base.fptosi)(Int64, (Base.floor_llvm)(x@_3::Float64)::Float64)::Int64
goto 63
60:
#= line 674 =#
#temp#@_27::Int64 = (Base.throw)($(Expr(:invoke, MethodInstance for InexactError(::Symbol, ::Any, ::Any), :(Base.InexactError), :(:trunc), Int64, :((Base.floor_llvm)(x@_3)::Float64)))::InexactError)::Union{}
63:
# meta: pop location
# meta: pop location
$(Expr(:inbounds, :pop))
n::Int64 = (Base.sub_int)(7, #temp#@_27::Int64)::Int64
#= line 36 =#
$(Expr(:inbounds, false))
# meta: location range.jl colon 5
# meta: pop location
$(Expr(:inbounds, :pop))
SSAValue(11) = (Base.select_value)((Base.sle_int)(1, (Base.sub_int)(n::Int64, 1)::Int64)::Bool, (Base.sub_int)(n::Int64, 1)::Int64, (Base.sub_int)(1, 1)::Int64)::Int64
#temp#@_19::Int64 = 1
75:
unless (Base.not_int)((#temp#@_19::Int64 === (Base.add_int)(SSAValue(11), 1)::Int64)::Bool)::Bool goto 85
SSAValue(12) = #temp#@_19::Int64
SSAValue(13) = (Base.add_int)(#temp#@_19::Int64, 1)::Int64
ν::Int64 = SSAValue(12)
#temp#@_19::Int64 = SSAValue(13)
#= line 37 =#
ψ::Any = (Base.sub_float)(ψ::Float64, (Base.div_float)((Base.sitofp)(Float64, 1)::Float64, (Base.add_float)(z@_21::Float64, (Base.sitofp)(Float64, ν::Int64)::Float64)::Float64)::Float64)::Float64
83:
goto 75
85:
#= line 39 =#
ψ::Any = (Base.sub_float)(ψ::Float64, (Base.div_float)((Base.sitofp)(Float64, 1)::Float64, z@_21::Float64)::Float64)::Float64
#= line 40 =#
z@_21::Float64 = (Base.add_float)(z@_21::Float64, (Base.sitofp)(Float64, n::Int64)::Float64)::Float64
90:
#= line 42 =#
t::Float64 = (Base.div_float)((Base.sitofp)(Float64, 1)::Float64, z@_21::Float64)::Float64
#= line 43 =#
$(Expr(:inbounds, false))
# meta: location math.jl log 442
SSAValue(10) = $(Expr(:foreigncall, ("log", "libopenlibm"), Float64, svec(Float64), :(:ccall), 1, :(z@_21)))
# meta: location math.jl nan_dom_err 323
unless (Base.and_int)((Base.ne_float)(SSAValue(10), SSAValue(10))::Bool, (Base.not_int)((Base.ne_float)(z@_21::Float64, z@_21::Float64)::Bool)::Bool)::Bool goto 101
#temp#@_28::Float64 = (Base.Math.throw)($(Expr(:invoke, MethodInstance for DomainError(::Any, ::Any), :(Base.Math.DomainError), :(z@_21), "NaN result for non-NaN input."))::DomainError)::Union{}
goto 103
101:
#temp#@_28::Float64 = SSAValue(10)
103:
# meta: pop location
# meta: pop location
$(Expr(:inbounds, :pop))
ψ::Any = (Base.add_float)(ψ::Float64, (Base.sub_float)(#temp#@_28::Float64, (Base.mul_float)(0.5, t::Float64)::Float64)::Float64)::Float64
#= line 44 =#
t::Float64 = (Base.mul_float)(t::Float64, t::Float64)::Float64
#= line 46 =#
SSAValue(2) = ψ::Float64
SSAValue(3) = t::Float64
tt::Float64 = t::Float64
# meta: location math.jl
#= line 139 =#
goto 117
117:
Base.Math.t = tt::Float64
#temp#@_22::Any = (Base.Math.muladd)(Base.Math.t, (Base.Math.muladd)(Base.Math.t, (Base.Math.muladd)(Base.Math.t, (Base.Math.muladd)(Base.Math.t, (Base.Math.muladd)(Base.Math.t, (Base.Math.muladd)(Base.Math.t, (Base.Math.muladd)(Base.Math.t, -0.4432598039215686, 0.08333333333333333)::Any, -0.021092796092796094)::Any, 0.007575757575757576)::Any, -0.004166666666666667)::Any, 0.003968253968253968)::Any, -0.008333333333333333)::Any, 0.08333333333333333)::Any
120:
# meta: pop location
SSAValue(5) = (SSAValue(3) * #temp#@_22::Any)::Any
SSAValue(6) = (SSAValue(2) - SSAValue(5))::Any
ψ::Any = SSAValue(6)
return SSAValue(6)
end::AnyThe same function is type-stable in Julia 0.6, so it has probably to do with some change in Julia base code.
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