Skip to content

Hotfix on a corner case of tileable rr_graph direct connections #3319

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Oct 27, 2025
Merged

Hotfix on a corner case of tileable rr_graph direct connections #3319

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions vpr/src/route/rr_graph_generation/tileable_rr_graph/tileable_rr_graph_gsb.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1761,6 +1761,10 @@ void build_direct_connections_for_one_gsb(const RRGraphView& rr_graph,

/* directs[i].sub_tile_offset is added to from_capacity(z) to get the target_capacity */
int to_subtile_cap = z + directs[i].sub_tile_offset;
/* If the destination subtile is out of range, there is no qualified IPINs */
if (to_subtile_cap < 0 || to_subtile_cap >= to_grid_type->capacity) {
continue;
}
/* Iterate over all sub_tiles to get the sub_tile which the target_cap belongs to. */
const t_sub_tile* to_sub_tile = nullptr;
for (const t_sub_tile& sub_tile : to_grid_type->sub_tiles) {
Expand Down