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Enable empty list of values as attribute #5559

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Merged
merged 13 commits into from
Sep 26, 2023
Merged

Enable empty list of values as attribute #5559

merged 13 commits into from
Sep 26, 2023

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@gramalingam
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This PR makes two fixes:

  • The existing checker does not allow an attribute to have an empty list (of ints, or floats, or strings, etc.) as a value. The PR removes this check. It is better for op-specific checks to check for this where required.
  • There are similar checks in the shape-inference method of the Constant op, which are also removed.

This allows a Constant op to construct an empty 1D tensor of ints or floats, for example, conveniently.

@gramalingam gramalingam requested review from a team as code owners September 1, 2023 03:16
github-advanced-security[bot]
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@justinchuby
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Just wondering: Do we know definitively which field is set (to know the dtype) when they are empty?

@gramalingam
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Just wondering: Do we know definitively which field is set (to know the dtype) when they are empty?

Yes ... AttributeProto has a type field. (Further, the operator spec also constrains the type of a named attribute: eg., for Constant, value_ints is required to be ints type.)

@titaiwangms titaiwangms mentioned this pull request Sep 1, 2023
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@justinchuby
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I see!

@justinchuby justinchuby added the module: checker onnx.checker label Sep 1, 2023
@gramalingam
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70f477a 
Signed-off-by: Ganesan Ramalingam <[email protected]>
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5715952 
Signed-off-by: Ganesan Ramalingam <[email protected]>
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Merge branch 'main' into empty-list-check
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xadupre
xadupre reviewed Sep 5, 2023
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@justinchuby justinchuby requested a review from xadupre September 11, 2023 19:11
xadupre
xadupre reviewed Sep 12, 2023
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xadupre
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@gramalingam
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@xadupre : any further comments on this PR? Thanks!

@gramalingam gramalingam added this pull request to the merge queue Sep 26, 2023
Merged via the queue into onnx:main with commit d14f721 Sep 26, 2023
@gramalingam gramalingam deleted the empty-list-check branch September 26, 2023 16:12
@gramalingam gramalingam added this to the 1.15 milestone Sep 26, 2023
@abock abock mentioned this pull request Oct 6, 2023
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@justinchuby justinchuby justinchuby approved these changes

@titaiwangms titaiwangms titaiwangms approved these changes

@xadupre xadupre xadupre approved these changes

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module: checker onnx.checker

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@gramalingam @justinchuby @titaiwangms @xadupre