Fix memory corruption in Etesian::Area, separate it's creation.

* In Etesian::Slice::createDiodeUnder(), delete the Instance *after*
    removing the tile referring it. This was working, unless we
    active the debug mode which tries to print the Tile's instance.
* In EtesianEngine::place(), no longer call toHurricane() at the
    end of the placement. Must now be done as a separate step.
    Exported to Python interface.
      This fix is related to the spare buffer removal memory
    corruption

etesian/src/EtesianEngine.cpp

@@ -1418,9 +1418,7 @@ namespace Etesian {
     cmess1 << "  o  Detailed Placement." << endl;
     detailedPlace(detailedIterations, detailedEffort, detailedOptions);
 
-    Breakpoint::stop( 100, "Before adding feeds." );
-    cmess2 << "  o  Adding feed cells." << endl;
-    toHurricane();
+  //toHurricane();
   //addFeeds();
 
     cmess1 << "  o  Placement finished." << endl;

etesian/src/GraphicEtesianEngine.cpp

@@ -101,6 +101,7 @@ namespace Etesian {
     EtesianEngine* etesian = getForFramework( CreateEngine );
     etesian->resetPlacement();
     etesian->place();
+    etesian->toHurricane();
   }
 
 

etesian/src/Placement.cpp

@@ -17,6 +17,7 @@
 #include "hurricane/Error.h"
 #include "hurricane/Warning.h"
 #include "hurricane/DataBase.h"
+#include "hurricane/DebugSession.h"
 #include "hurricane/UpdateSession.h"
 #include "hurricane/DeepNet.h"
 #include "hurricane/Plug.h"
@@ -43,6 +44,7 @@ namespace Etesian {
   using Hurricane::DeepNet;
   using Hurricane::Plug;
   using Hurricane::RoutingPad;
+  using Hurricane::DebugSession;
   using Hurricane::UpdateSession;
   using CRL::AllianceFramework;
   using CRL::CatalogExtension;
@@ -327,8 +329,8 @@ namespace Etesian {
     DbU::Unit  width   = (*iCandidate).getWidth(); 
     diodeInst = (*iCandidate).getInstance();
     Transformation transf = diodeInst->getTransformation();
-    diodeInst->destroy();
     _tiles.erase( iCandidate );
+    diodeInst->destroy();
 
     Occurrence rpOccurrence = rp->getPlugOccurrence();
     Path       instancePath = rpOccurrence.getPath();
@@ -683,6 +685,10 @@ namespace Etesian {
       return;
     }
 
+  //Breakpoint::stop( 100, "Before adding feeds." );
+    cmess2 << "  o  Adding feed cells." << endl;
+
+  //DebugSession::open( 145, 150 );
     UpdateSession::open();
 
     if (_area) delete _area;
@@ -759,6 +765,7 @@ namespace Etesian {
     _area->addFeeds();
 
     UpdateSession::close();
+  //DebugSession::close();
 
     if (_viewer) _viewer->getCellWidget()->refresh();
   }

etesian/src/PyEtesianEngine.cpp

@@ -76,6 +76,7 @@ extern "C" {
   DirectVoidMethod(EtesianEngine,etesian,resetPlacement)
   DirectVoidMethod(EtesianEngine,etesian,clearColoquinte)
   DirectVoidMethod(EtesianEngine,etesian,flattenPower)
+  DirectVoidMethod(EtesianEngine,etesian,toHurricane)
   DirectGetUIntAttribute  (PyEtesianEngine_doHFNS          ,doHFNS          ,PyEtesianEngine,EtesianEngine)
   DirectSetLongAttribute  (PyEtesianEngine_setFixedAbHeight,setFixedAbHeight,PyEtesianEngine,EtesianEngine)
   DirectSetLongAttribute  (PyEtesianEngine_setFixedAbWidth ,setFixedAbWidth ,PyEtesianEngine,EtesianEngine)
@@ -267,6 +268,8 @@ extern "C" {
                             , "Build abstract interface in top cell for supply & blockages." }
     , { "doHFNS"            , (PyCFunction)PyEtesianEngine_doHFNS            , METH_NOARGS
                             , "Perform the high fanout net synthesis." }
+    , { "toHurricane"       , (PyCFunction)PyEtesianEngine_toHurricane       , METH_NOARGS
+                            , "Build the Hurricane post-placement manipulation structure." }
     , { "destroy"           , (PyCFunction)PyEtesianEngine_destroy           , METH_NOARGS
                             , "Destroy the associated hurricane object. The python object remains." }
     , {NULL, NULL, 0, NULL} /* sentinel */

etesian/src/etesian/Placement.h

@@ -132,6 +132,8 @@ namespace Etesian {
   class Tile {
     public:
       inline                   Tile          ( DbU::Unit xMin, DbU::Unit width, const Occurrence& );
+      inline                   Tile          ( const Tile& );
+      inline                  ~Tile          ();
       inline       bool        isFixed       () const;
       inline       DbU::Unit   getXMin       () const;
       inline       DbU::Unit   getXMax       () const;
@@ -140,6 +142,7 @@ namespace Etesian {
       inline       Instance*   getInstance   () const;
       inline const Occurrence& getOccurrence () const;
       inline       void        translate     ( DbU::Unit );
+      inline       Tile&       operator=     ( const Tile& );
       inline       std::string _getString    () const;
                    Record*     _getRecord    () const;
     private:
@@ -149,7 +152,26 @@ namespace Etesian {
   };
 
   inline Tile::Tile ( DbU::Unit xMin, DbU::Unit width, const Occurrence& occurrence )
-    : _xMin(xMin), _width(width), _occurrence(occurrence)
+    : _xMin(xMin)
+    , _width(width)
+    , _occurrence(occurrence)
+  { }
+
+  inline Tile::Tile ( const Tile& other )
+    : _xMin(other._xMin)
+    , _width(other._width)
+    , _occurrence(other._occurrence)
+  { }
+
+  inline Tile& Tile::operator= ( const Tile& other )
+  {
+    _xMin       = other._xMin;
+    _width      = other._width;
+    _occurrence = other._occurrence;
+    return *this;
+  }
+
+  inline Tile::~Tile ()
   { }
 
   inline       DbU::Unit   Tile::getXMin       () const { return _xMin; }