Add NodeEquivalenceMapper - #4832
Merged
Merged
Conversation
copybara-service
Bot
force-pushed
the
test_968770823
branch
2 times, most recently
from
August 25, 2026 21:24
a4f4764 to
70a6ad2
Compare
Introduces an EquivalenceMapping abstract class that determines given some `original` Node and some `variant` Node whether it knows how to transform some of the `original`'s inputs or the output of `original` such that the `variant` node type could be used in its place. For example, negating the second operand of a subtract allows using an add instead. This class will enable resource sharing to not concern itself with how a source Node or destination Node in a folding have to be modified in order to be folded, whether intermediate operations on input operands or on the output are required. PiperOrigin-RevId: 970816219
copybara-service
Bot
force-pushed
the
test_968770823
branch
from
August 25, 2026 22:06
70a6ad2 to
dab9a7a
Compare
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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Add NodeEquivalenceMapper
Introduces an EquivalenceMapping abstract class that determines given some
originalNode and somevariantNode whether it knows how to transform some of theoriginal's inputs or the output oforiginalsuch that thevariantnode type could be used in its place. For example, negating the second operand of a subtract allows using an add instead.This class will enable resource sharing to not concern itself with how a source Node or destination Node in a folding have to be modified in order to be folded, whether intermediate operations on input operands or on the output are required.