grt: use all APs for non-core cells

Signed-off-by: Eder Monteiro <[email protected]>

Author: eder-matheus

src/grt/src/GlobalRouter.cpp

@@ -934,8 +934,12 @@ bool GlobalRouter::findPinAccessPointPositions(
       access_points.insert(
           access_points.begin(), bpin_pas.begin(), bpin_pas.end());
     }
-  } else {
+  } else if (pin.isCorePin()) {
     access_points = pin.getITerm()->getPrefAccessPoints();
+  } else {
+    for (const auto& [pin, aps] : pin.getITerm()->getAccessPoints()) {
+      access_points.insert(access_points.end(), aps.begin(), aps.end());
+    }
   }
 
   if (access_points.empty()) {

src/grt/src/Pin.cpp

@@ -185,4 +185,22 @@ odb::Point Pin::getPositionNearInstEdge(const odb::Rect& pin_box,
   return pin_pos;
 }
 
+bool Pin::isCorePin() const
+{
+  if (is_port_) {
+    return false;
+  }
+
+  if (connected_to_pad_or_macro_) {
+    return false;
+  }
+
+  odb::dbInst* inst = iterm->getInst();
+  if (inst->getMaster()->isCore()) {
+    return true;
+  }
+
+  return false;
+}
+
 }  // namespace grt

src/grt/src/Pin.h

@@ -66,6 +66,7 @@ class Pin
   bool isDriver();
   odb::Point getPositionNearInstEdge(const odb::Rect& pin_box,
                                      const odb::Point& rect_middle) const;
+  bool isCorePin() const;
 
  private:
   void determineEdge(const odb::Rect& bounds,