[Relay] [Error] fuse does not work on trivial usecase of tuplegetitem

[MarisaKirisame]

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[MarisaKirisame]

@masahi @tqchen @vinx13 do you three has any idea how to fix this?

[masahi]

I'll take a look.

[masahi]

@MarisaKirisame ok, the cause was this line. Currently, when we make a new subfusion in the fusion pass, the fused function is always "Primitive" function. For this test case, if you replace that line with

func = FunctionSetAttr(func, "Primitive", tvm::Integer(0));

it will work. Now the question is how to decide if the new fused function should be primitive or not.

[tqchen]

@MarisaKirisame it is better to continue the discussion with a new thread on https://discuss.tvm.ai/ with a development tag