WIP: bugfix of refactoriung, update test data.

src/db/db/dbHierNetworkProcessor.cc

@@ -1518,8 +1518,6 @@ private:
     db::ICplxTrans t1i = t1.inverted ();
     db::ICplxTrans t2i = t2.inverted ();
 
-    std::list<std::pair<ClusterInstance, ClusterInstance> > ii_interactions;
-
     // @@@ optimize for single inst?
     for (db::CellInstArray::iterator ii1 = i1element.at_end () ? i1.begin_touching (common_all.transformed (t1i), mp_layout) : i1element; ! ii1.at_end (); ++ii1) {
 
@@ -1553,6 +1551,7 @@ private:
           const db::Cell &cell2 = mp_layout->cell (i2.cell_index ());
           for (db::Cell::touching_iterator jj2 = cell2.begin_touching (common12.transformed (tt2.inverted ())); ! jj2.at_end (); ++jj2) {
 
+            std::list<std::pair<ClusterInstance, ClusterInstance> > ii_interactions;
             consider_instance_pair (common12, i1, t1, ii1, *jj2, tt2, db::CellInstArray::iterator (), ii_interactions);
 
             for (std::list<std::pair<ClusterInstance, ClusterInstance> >::iterator i = ii_interactions.begin (); i != ii_interactions.end (); ++i) {
@@ -1577,6 +1576,7 @@ private:
         const db::Cell &cell1 = mp_layout->cell (i1.cell_index ());
         for (db::Cell::touching_iterator jj1 = cell1.begin_touching (common1.transformed (tt1.inverted ())); ! jj1.at_end (); ++jj1) {
 
+          std::list<std::pair<ClusterInstance, ClusterInstance> > ii_interactions;
           consider_instance_pair (common1, *jj1, tt1, db::CellInstArray::iterator (), i2, t2, i2element, ii_interactions);
 
           for (std::list<std::pair<ClusterInstance, ClusterInstance> >::iterator i = ii_interactions.begin (); i != ii_interactions.end (); ++i) {

src/db/db/dbHierNetworkProcessor.h

@@ -734,6 +734,30 @@ private:
 
 typedef std::list<std::pair<ClusterInstance, ClusterInstance> > cluster_instance_pair_list_type;
 
+inline bool equal_array_delegates (const db::ArrayBase *a, const db::ArrayBase *b)
+{
+  if ((a == 0) != (b == 0)) {
+    return false;
+  } else if (a) {
+    static const db::array_base_ptr_cmp_f arr_less;
+    return ! arr_less (a, b) && ! arr_less (b, a);
+  } else {
+    return true;
+  }
+}
+
+inline bool less_array_delegates (const db::ArrayBase *a, const db::ArrayBase *b)
+{
+  if ((a == 0) != (b == 0)) {
+    return (a == 0) < (b == 0);
+  } else if (a) {
+    static const db::array_base_ptr_cmp_f arr_less;
+    return arr_less (a, b);
+  } else {
+    return false;
+  }
+}
+
 /**
  *  @brief A helper struct to describe a pair of cell instances with a specific relative transformation
  */
@@ -747,7 +771,8 @@ struct InstanceToInstanceInteraction
   {
     static const db::array_base_ptr_cmp_f arr_less;
     return ci1 == other.ci1 && ci2 == other.ci2 && t21.equal (other.t21) &&
-            (array1 == 0) == (array2 == 0) && array1 != 0 && ! arr_less (array1, array2) && ! arr_less (array2, array1);
+            equal_array_delegates (array1, other.array1) &&
+            equal_array_delegates (array2, other.array2);
   }
 
   bool operator< (const InstanceToInstanceInteraction &other) const
@@ -761,15 +786,12 @@ struct InstanceToInstanceInteraction
     if (! t21.equal (other.t21)) {
       return t21.less (other.t21);
     }
-    if ((array1 == 0) != (array2 == 0)) {
-      return (array1 == 0) < (array2 == 0);
-    }
-    if (array1 != 0) {
-      static const db::array_base_ptr_cmp_f arr_less;
-      return arr_less (array1, array2);
-    } else {
+    if (less_array_delegates (array1, other.array1)) {
+      return true;
+    } else if (less_array_delegates (other.array1, array1)) {
       return false;
     }
+    return less_array_delegates (array2, other.array2);
   }
 
   db::cell_index_type ci1, ci2;

src/db/unit_tests/dbLayoutToNetlistTests.cc

@@ -791,7 +791,7 @@ TEST(2_Probing)
   EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (5.3, 0.0))), "RINGO:VSS");
 
   EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (2.6, 1.0))), "RINGO:$I18");
-  EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I5");
+  EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I3");
 
   // doesn't do anything here, but we test that this does not destroy anything:
   l2n.netlist ()->combine_devices ();
@@ -833,7 +833,7 @@ TEST(2_Probing)
   EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (5.3, 0.0))), "RINGO:VSS");
 
   EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (2.6, 1.0))), "RINGO:$I18");
-  EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I5");
+  EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I3");
 }
 
 TEST(3_GlobalNetConnections)
@@ -1071,7 +1071,7 @@ TEST(3_GlobalNetConnections)
   EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (5.3, 0.0))), "RINGO:VSS");
 
   EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (2.6, 1.0))), "RINGO:$I22");
-  EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I6");
+  EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I4");
 
   // doesn't do anything here, but we test that this does not destroy anything:
   l2n.netlist ()->combine_devices ();
@@ -1113,7 +1113,7 @@ TEST(3_GlobalNetConnections)
   EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (5.3, 0.0))), "RINGO:VSS");
 
   EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (2.6, 1.0))), "RINGO:$I22");
-  EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I6");
+  EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I4");
 }
 
 TEST(4_GlobalNetDeviceExtraction)
@@ -1357,7 +1357,7 @@ TEST(4_GlobalNetDeviceExtraction)
   EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (5.3, 0.0))), "RINGO:VSS");
 
   EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (2.6, 1.0))), "RINGO:$I22");
-  EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I6");
+  EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I4");
 
   // doesn't do anything here, but we test that this does not destroy anything:
   l2n.netlist ()->combine_devices ();
@@ -1399,7 +1399,7 @@ TEST(4_GlobalNetDeviceExtraction)
   EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (5.3, 0.0))), "RINGO:VSS");
 
   EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (2.6, 1.0))), "RINGO:$I22");
-  EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I6");
+  EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I4");
 }
 
 TEST(5_DeviceExtractionWithDeviceCombination)