Improve liveness analysis by combining traversal passes #263
+34
−5
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
This reduces the number of basic block traversals in liveness_analysis() from two to one by combining bb_reset_live_kill_idx and bb_solve_locals into a single bb_reset_and_solve_locals() function. - Eliminates one complete CFG traversal per function - Reduces function call overhead from repeated traversals - Improves cache locality by visiting each basic block once It results in 10% reduction in total traversal calls during compilation.
ChAoSUnItY
approved these changes
Aug 26, 2025
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
This reduces the number of basic block traversals in liveness_analysis() from two to one by combining bb_reset_live_kill_idx and bb_solve_locals into a single bb_reset_and_solve_locals() function.
It results in 10% reduction in total traversal calls during compilation.