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inference: apply tmerge limit elementwise to the Union #50927

Merged
merged 3 commits into from
Sep 15, 2023
Merged

inference: apply tmerge limit elementwise to the Union #50927

merged 3 commits into from
Sep 15, 2023

Commits on Sep 12, 2023

  1. inference: apply tmerge limit elementwise to the Union 

    This allows forming larger unions, as long as each element in the Union
is both relatively distinct and relatively simple. For example:

    tmerge(Base.BitSigned, Nothing) == Union{Nothing, Int128, Int16, Int32, Int64, Int8}
    tmerge(Tuple{Base.BitSigned, Int}, Nothing) == Union{Nothing, Tuple{Any, Int64}}
    tmerge(AbstractVector{Int}, Vector) == AbstractVector

Disables a test from dc8d885.

Co-authored-by: Oscar Smith <oscardssmith@gmail.com>
    @pchintalapudi @oscardssmith @vtjnash
    2 people authored and vtjnash committed Sep 12, 2023
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  2. fix problems exposed by previous commit and do a few small optimizations

    @vtjnash
    vtjnash committed Sep 12, 2023
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Commits on Sep 13, 2023

  1. make drastic changes to make this algorithm more commutative and simpler

    @vtjnash
    vtjnash committed Sep 13, 2023
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