check_rr_graph: fix bug when checking multi-connections between nodes #1579
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Outdated suggestions cannot be applied.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.
Signed-off-by: Alessandro Comodi [email protected]
Description
There seems to be a bug in check_rr_graph related to the check on the multiple connections between RR nodes.
While dealing with f4pga/f4pga-arch-defs#1711 to fix the RR graph due to the presence of only one node for all the possible sides of a pin, I encountered the VPR error below:
Given that the comment prior to the check say that this pair of nodes can have multiple connections, I spotted a possible bug in the if statement.
Types of changes
Checklist: