Unboxed Tuple in a single STG variable

[Csaba Hruska]

Hello,

Can an STG variable (Id) store a whole unboxed tuple value?
Or is it required to decompose a returned unboxed value immediately by
using an StgCase expression?
If so, then is it correct that the STG variables can store values only from
the following types: Addr, Float, Double, Int, Word, Ptr (for boxed
values)? (and no multi-value values)

Thanks,
Csaba
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