Support abc9_box on ordinary modules in abc_new
#4737
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
`$extern:...` modules inserted by `techmap -extern` are special in the regard that they have a private ID (starting with a dollar sign) but are not an internal cell. Support those modules in xaiger export.
Previously the `abc9_box` mode was reserved to modules with the `blackbox` or `whitebox` attribute. Allow `abc9_box` on ordinary modules when doing hierarchical synthesis.
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Outdated suggestions cannot be applied.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 are the reasons/motivation for this change?
To preserve boundaries of arithmetic operators, we want to isolate them into a new module which will become part of the design hierarchy. Ordinarily this would mean segmenting the timing paths for the technology mapper within ABC, but with new changes to
abc_newwe support having those be abc9 boxes with their propagation arcs described to the mapper.Internally this calls the new
portarcscommand (PR #4736) once the module to be boxed has been technology-mapped.In addition this PR allows applying different ABC scripts per module.