Closed
Description
openedon Aug 27, 2017
On 0.6.0,
foo1(t::Type, x) = Nullable{t}(sin(x))
foo2(t::Type{T}, x) where T = Nullable{t}(sin(x))
@btime foo1(Float64, 2)
408.815 ns (2 allocations: 48 bytes) # same with @allocated
@btime foo2(Float64, 2)
17.359 ns (0 allocations: 0 bytes)However, both functions are @inferred correctly, and have the same @code_llvm. Why does foo1 allocate?
Might be related to #19137
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