api for finding instance parent of pin. Signed-off-by:Andy Fox <andy@…

…rushc.com> Signed-off-by: andyfox-rushc <[email protected]>
andyfox-rushc · Sep 13, 2024 · 49143da · 49143da
1 parent 7c8bc71
commit 49143da
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Showing 3 changed files with 24 additions and 17 deletions.
diff --git a/src/dbSta/include/db_sta/dbNetwork.hh b/src/dbSta/include/db_sta/dbNetwork.hh
@@ -179,9 +179,10 @@ class dbNetwork : public ConcreteNetwork
   void setTopPortDirection(dbBTerm* bterm, const dbIoType& io_type);
   ObjectId id(const Port* port) const override;
 
-  // hierarchical wiring support.
-  dbModNet* getDbModNetFromDbNet(dbNet* db_net);
+  // hierarchical support functions
   dbModule* getNetDriverParentModule(Net* net);
+  Instance* getOwningInstanceParent(Pin* pin);
+
   void hierarchicalConnect(dbITerm* source_pin,
                            dbITerm* dest_pin,
                            const char* connection_name);

diff --git a/src/dbSta/src/dbNetwork.cc b/src/dbSta/src/dbNetwork.cc
@@ -2593,8 +2593,25 @@ dbNetworkObserver::~dbNetworkObserver()
 }
 
 /*
-  Hierarchical network api connections
+  Hierarchical support api
  */
+Instance* dbNetwork::getOwningInstanceParent(Pin* pin)
+{
+  Instance* inst = instance(drvr_pin);
+  dbInst* db_inst = nullptr;
+  odb::dbModInst* mod_inst = nullptr;
+  db_network_->staToDb(inst, db_inst, mod_inst);
+  odb::dbModule* module = nullptr;
+  if (db_inst) {
+    module = db_inst->getModule();
+  } else if (mod_inst) {
+    module = mod_inst->getParent();
+  }
+  Instance* parent = (module == (block_->getTopModule()))
+                         ? db_network_->topInstance()
+                         : db_network_->dbToSta(module->getModInst());
+  return parent;
+}
 
 dbModule* dbNetwork::getNetDriverParentModule(Net* net)
 {

diff --git a/src/rsz/src/RepairHold.cc b/src/rsz/src/RepairHold.cc
@@ -537,20 +537,9 @@ void RepairHold::makeHoldDelay(Vertex* drvr,
 
   db_network_->net(drvr_pin, db_drvr_net, mod_drvr_net);
 
-  // Get the parent of the driver pin and put the new buffer there
-  Instance* inst = db_network_->instance(drvr_pin);
-  dbInst* db_inst;
-  odb::dbModInst* mod_inst;
-  db_network_->staToDb(inst, db_inst, mod_inst);
-  odb::dbModule* module = nullptr;
-  if (db_inst) {
-    module = db_inst->getModule();
-  } else if (mod_inst) {
-    module = mod_inst->getParent();
-  }
-  Instance* parent = (module == (db_network_->block()->getTopModule()))
-                         ? db_network_->topInstance()
-                         : db_network_->dbToSta(module->getModInst());
+  // Get the parent instance (owning the instance of the driver pin)
+  // and put the new buffer there
+  Instance* parent = db_network_->getOwningInstanceParent(drvr_pin);
 
   Net *in_net = nullptr, *out_net = nullptr;