feat[venom]: new DFTPass algorithm
#4255
Merged
Conversation
This file contains 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 commit adds a small heuristic for cleaning the input stack from cfg_in, which is to pop the shallowest items first. it also cleans up the code a little bit and adds stronger preconditions to the code. a further optimization would be to try to align the output stack as best as possible at the jnz, but that belongs in the DFT pass.
![github-advanced-security[bot]](https://avatars.githubusercontent.com/in/57789?s=60&v=4){kind=small}
vyper/venom/passes/dft.py
Outdated
| if write_effect in last_write_effects and last_write_effects[write_effect] != inst: | ||
| self.barriers[inst].add(last_write_effects[write_effect]) | ||
| if write_effect in last_read_effects: | ||
| self.barriers[inst].add(last_read_effects[write_effect]) |
There was a problem hiding this comment.
maybe some way to do it without the loop? e.g.
self.barriers[inst] |= (write_effects & last_read_effects)
This was referenced Nov 21, 2024
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Outdated suggestions cannot be applied.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.
What I did
How I did it
How to verify it
Commit message
Description for the changelog
Cute Animal Picture