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[RELAY][OP] Support MXNet-style attributes for reshape_like #6851

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merged 5 commits into from Nov 6, 2020

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altanh
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@altanh altanh commented Nov 4, 2020

This PR adds MXNet-style shape slicing attributes for reshape_like, to enable reshaping part of a shape (using part of another shape). In particular, this adds lhs_begin, lhs_end, rhs_begin, rhs_end.

cc @kevinthesun @icemelon9 @junrushao1994

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@giuseros giuseros left a comment

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Looks good overall,, only minor changes

python/tvm/relay/op/transform.py Show resolved Hide resolved
@@ -62,6 +62,9 @@ Expr MakeRepeat(Expr data, int repeats, int axis);

Expr MakeReshape(Expr data, Array<Integer> newshape);

Expr MakeReshapeLike(Expr lhs, Expr rhs, int64_t lhs_begin, Integer lhs_end, int64_t rhs_begin,
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Why {lhs,rhs}_begin is int64_t and {lhs,rhs}_end is Integer?

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I did this because the beginning index (in both cases) must always be an integer, but the end index can be None which means I must use a nullable Integer wrapper. I could make everything Integer and check that beginning is always defined. I did feel a bit weird using int64_t directly since everything else seem to use int but the value wrapped by Integer is int64_t so that's why I chose it.

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I noticed that the Attrs I defined uses int and not int64_t so I'll probably just use int since other code mostly uses it.

tests/python/relay/test_op_level3.py Show resolved Hide resolved
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Overall looks good, just one style comment

src/relay/op/tensor/transform.cc Show resolved Hide resolved
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Thanks for addressing the comments! LGTM

@junrushao junrushao merged commit df6a796 into apache:main Nov 6, 2020
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Thanks @altanh @tkonolige @electriclilies @jroesch @giuseros! It is now merged :-)

trevor-m pushed a commit to trevor-m/tvm that referenced this pull request Dec 2, 2020
)

* add MXNet-style reshape_like attrs support

* lint

* document, switch to int, add more tests, style

* add example usage in documentation

* fix doc formatting
trevor-m pushed a commit to trevor-m/tvm that referenced this pull request Dec 4, 2020
)

* add MXNet-style reshape_like attrs support

* lint

* document, switch to int, add more tests, style

* add example usage in documentation

* fix doc formatting
trevor-m pushed a commit to neo-ai/tvm that referenced this pull request Dec 4, 2020
)

* add MXNet-style reshape_like attrs support

* lint

* document, switch to int, add more tests, style

* add example usage in documentation

* fix doc formatting
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6 participants