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[Relay]Frontend][Onnx] Remove pop that interferes with nested loops. #7781

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merged 3 commits into from Apr 4, 2021

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jwfromm
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@jwfromm jwfromm commented Apr 1, 2021

PR #7699 introduced a check for user provided shapes that arent found in the input graph. My implementation used pop, which it turns out can cause issues in nested loops. Unfortunately, its difficult to write a test case that triggers this error, but we should avoid pop in general. This PR replaces the pop based approach with a much safer way to check the same condition.

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LGTM

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Looks like the assertion that you modified is breaking CI: https://ci.tlcpack.ai/blue/organizations/jenkins/tvm/detail/PR-7781/1/pipeline @jwfromm

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jwfromm commented Apr 1, 2021

@tmoreau89 yeah that new assert actually triggers for inner nested loops. I've changed it to only check in the outermost scope of the model which should be the sweet spot.

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Thank you @jwfromm @mbrookhart the PR has been merged.

trevor-m pushed a commit to trevor-m/tvm that referenced this pull request May 6, 2021
…pache#7781)

* Remove popping that interferes with nested loops.

* Only check user inputs in the outer-most graph scope.

* Fix style.

Co-authored-by: Ubuntu <jwfromm@jwfromm-cpu-dev.itxhlkosmouevgkdrmwxfbs5qh.xx.internal.cloudapp.net>
trevor-m pushed a commit to trevor-m/tvm that referenced this pull request May 6, 2021
…pache#7781)

* Remove popping that interferes with nested loops.

* Only check user inputs in the outer-most graph scope.

* Fix style.

Co-authored-by: Ubuntu <jwfromm@jwfromm-cpu-dev.itxhlkosmouevgkdrmwxfbs5qh.xx.internal.cloudapp.net>
trevor-m pushed a commit to trevor-m/tvm that referenced this pull request May 6, 2021
…pache#7781)

* Remove popping that interferes with nested loops.

* Only check user inputs in the outer-most graph scope.

* Fix style.

Co-authored-by: Ubuntu <jwfromm@jwfromm-cpu-dev.itxhlkosmouevgkdrmwxfbs5qh.xx.internal.cloudapp.net>
trevor-m pushed a commit to neo-ai/tvm that referenced this pull request May 11, 2021
…pache#7781)

* Remove popping that interferes with nested loops.

* Only check user inputs in the outer-most graph scope.

* Fix style.

Co-authored-by: Ubuntu <jwfromm@jwfromm-cpu-dev.itxhlkosmouevgkdrmwxfbs5qh.xx.internal.cloudapp.net>
@jwfromm jwfromm deleted the pop_bad branch April 12, 2023 15:56
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3 participants