Merge pull request The-OpenROAD-Project#4117 from The-OpenROAD-Projec…

…t-staging/pdn-obs-fix pdn: correct the instance obstruction calculation
AcKoucher · Oct 10, 2023 · 0dff30d · 0dff30d
2 parents 3187676 + bebcca3
commit 0dff30d
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/src/pdn/src/grid.cpp b/src/pdn/src/grid.cpp
@@ -1347,10 +1347,12 @@ ShapeTreeMap InstanceGrid::getInstanceObstructions(
   for (auto* ob : master->getObstructions()) {
     odb::Rect obs_rect = ob->getBox();
 
-    // add min spacing
+    // add max of min spacing and the halo
     auto* layer = ob->getTechLayer();
-    obs_rect.bloat(layer->getSpacing(), obs_rect);
+    odb::Rect spacing_rect;
+    obs_rect.bloat(layer->getSpacing(), spacing_rect);
     obs_rect = applyHalo(obs_rect, halo, true, true, true);
+    obs_rect.merge(spacing_rect);
 
     transform.apply(obs_rect);
     auto shape = std::make_shared<Shape>(layer, obs_rect, Shape::BLOCK_OBS);