[Relax][Transform] Handle tuple return in RemoveUnusedOutputs #17253
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Prior to this commit, the `relax.transform.RemoveUnusedOutputs` pass only marked a tuple element as used if it occurred in a `TupleGetItem` node. This ignored use cases where a tuple is used as an aggregate object, such as returning a tuple from a function. This would collect incorrect results for a Relax function that calls a subroutine, receives a tuple as the return value of the subroutine, then returns that tuple. This commit updates `RemoveUnusedOutputs` to look for usage of a tuple object, not just for usage in `TupleGetItem`. Closes apache#17247
tqchen
approved these changes
Sep 6, 2024
Lunderberg
deleted the
relax_handle_tuple_return_in_removeunusedoutputs
branch
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Prior to this commit, the
relax.transform.RemoveUnusedOutputspass only marked a tuple element as used if it occurred in aTupleGetItemnode. This ignored use cases where a tuple is used as an aggregate object, such as returning a tuple from a function. This would collect incorrect results for a Relax function that calls a subroutine, receives a tuple as the return value of the subroutine, then returns that tuple.This commit updates
RemoveUnusedOutputsto look for usage of a tuple object, not just for usage inTupleGetItem.Closes #17247