[Pass] Add dead code elimination pass for Tilus IR#92
Merged
yaoyaoding merged 1 commit intomainfrom Mar 12, 2026
Merged
Conversation
yaoyaoding
force-pushed
the
dce
branch
2 times, most recently
from
979e70e to
7e8bff9
Compare
Implement a DCE pass that removes functional instructions whose output tensors are never consumed, and TensorItemValueStmt/TensorItemPtrStmt whose bound Vars are never referenced. Uses a two-pass approach: 1. Collect used tensors via IRVisitor with fixed-point propagation 2. Eliminate dead instructions/stmts via IRRewriter Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> Signed-off-by: Yaoyao Ding <dingyaoyao.cs@gmail.com>
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Implement a DCE pass that removes functional instructions whose output tensors are never consumed, and TensorItemValueStmt/TensorItemPtrStmt whose bound Vars are never referenced. Uses a two-pass approach: