dbSta: correct dbNetwork::parent for the non-hier case

It was returning the dbModule parent mod instance of the top instance even when hierarchy was off. Fixes The-OpenROAD-Project/OpenROAD-flow-scripts#2485 Signed-off-by: Matt Liberty <[email protected]>
The-OpenROAD-Project · Oct 21, 2024 · 8211bd8 · 8211bd8
1 parent 9ca8405
commit 8211bd8
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/dbSta/src/dbNetwork.cc b/src/dbSta/src/dbNetwork.cc
@@ -843,6 +843,9 @@ Instance* dbNetwork::parent(const Instance* instance) const
   if (instance == top_instance_) {
     return nullptr;
   }
+  if (!hasHierarchy()) {
+    return top_instance_;
+  }
   dbInst* db_inst;
   dbModInst* mod_inst;
   staToDb(instance, db_inst, mod_inst);