Merge pull request #10548 from mikesinouye/mbff

mbff: expose visibility of some idempotent helper functions

Author: maliberty

src/dbSta/include/db_sta/dbNetwork.hh

@@ -405,6 +405,44 @@ class dbNetwork : public ConcreteNetwork
   double dbuToMeters(int dist) const;
   int metersToDbu(double dist) const;
 
+  ////////////////////////////////////////////////////////////////
+  // Sequential / Flop / Scan flop utility functions
+  // clock pin functions
+  bool isClockPin(odb::dbITerm* iterm) const;
+  bool clockOn(odb::dbInst* inst) const;
+
+  // d pin functions
+  bool isDPin(odb::dbITerm* iterm) const;
+  int getNumD(odb::dbInst* inst) const;
+
+  // q(n) pin functions
+  bool isQPin(odb::dbITerm* iterm) const;
+  bool isInvertingQPin(odb::dbITerm* iterm) const;
+  int getNumQ(odb::dbInst* inst) const;
+
+  // clear/preset pin functions
+  bool hasClear(odb::dbInst* inst) const;
+  bool isClearPin(odb::dbITerm* iterm) const;
+  bool hasPreset(odb::dbInst* inst) const;
+  bool isPresetPin(odb::dbITerm* iterm) const;
+
+  // scan cell/pin functions
+  bool isScanCell(odb::dbInst* inst) const;
+  bool isScanIn(odb::dbITerm* iterm) const;
+  odb::dbITerm* getScanIn(odb::dbInst* inst) const;
+  bool isScanEnable(odb::dbITerm* iterm) const;
+  odb::dbITerm* getScanEnable(odb::dbInst* inst) const;
+  LibertyPort* getLibertyScanEnable(const LibertyCell* lib_cell) const;
+  LibertyPort* getLibertyScanIn(const LibertyCell* lib_cell) const;
+  LibertyPort* getLibertyScanOut(const LibertyCell* lib_cell) const;
+
+  // supply pin functions
+  bool isSupplyPin(odb::dbITerm* iterm) const;
+  bool isValidFlop(odb::dbInst* FF) const;
+  bool isValidTray(odb::dbInst* tray) const;
+
+  ////////////////////////////////////////////////////////////////
+
   // hierarchy handler, set in openroad tested in network child traverserser
 
   void setHierarchy() { db_->setHierarchy(true); }
@@ -483,6 +521,7 @@ class dbNetwork : public ConcreteNetwork
   static constexpr unsigned DBIDTAG_WIDTH = 0x4;
 
  private:
+  const LibertyCell* getLibertyCell(const Cell* cell) const;
   void addDriverToCacheIfPresent(const Net* net, const Pin* drvr);
   void removeDriverFromCache(const Net* net);
   void removeDriverFromCache(const Net* net, const Pin* drvr);

src/dbSta/include/db_sta/dbSta.hh

@@ -11,6 +11,7 @@
 #include <vector>
 
 #include "db_sta/DelayFmt.hh"  // IWYU pragma: keep
+#include "db_sta/dbNetwork.hh"
 #include "odb/PtrSetMap.h"
 #include "odb/db.h"
 #include "odb/dbBlockCallBackObj.h"
@@ -258,10 +259,4 @@ class dbSta : public Sta, public odb::dbDatabaseObserver
   bool drvr_vertices_level_valid_ = false;
 };
 
-// Utilities for TestCell
-
-sta::LibertyPort* getLibertyScanEnable(const LibertyCell* lib_cell);
-sta::LibertyPort* getLibertyScanIn(const LibertyCell* lib_cell);
-sta::LibertyPort* getLibertyScanOut(const LibertyCell* lib_cell);
-
 }  // namespace sta