Improve shape inference in the cat pipeline #37080
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p-zubieta
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Aug 26, 2020
`cat` is frequently called with poor inference, since one only has to concatenate a couple of different container types before inference punts on the result type. While this does not make the return type in mixed container types fully inferrable, it does improve the analysis of the shape.
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KristofferC
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Sep 1, 2020
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catis frequently called with poor inference, since one only has to concatenate a couple of different container types before inference punts on the result type. While this does not make the return type in mixed container types fully inferrable, it does improve the analysis of the shape.Because it doesn't fully fix the inference problems, it's not obvious this is a testable improvement except at the aggregate level of backedges. Given that the issues are not fully fixed, the
T::Typeto::Type{T}changes don't really seem to be necessary, and I could back those out if desired.