[Comb] Lower comb pass boilerplate #5433
Merged
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Outdated suggestions cannot be applied.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.
Some operations in the comb dialect (e.g.
comb.truth_table
) are not directly supported by ExportVerilog. They need to be lowered into ops which are supported. There are many ways to lower these ops so we do this in a separate pass. This also allows the lowered form to participate in optimizations like the comb canonicalizers. This change is just to introduce the pass boilerplate. It currently doesn't do anything.