Merge pull request #8216 from The-OpenROAD-Project-staging/mpl-refactor-place-children

mpl: refactor placeChildren

Author: maliberty

src/mpl/src/SimulatedAnnealingCore.cpp

@@ -238,9 +238,9 @@ float SimulatedAnnealingCore<T>::getNormFencePenalty() const
 }
 
 template <class T>
-void SimulatedAnnealingCore<T>::getMacros(std::vector<T>& macros) const
+std::vector<T> SimulatedAnnealingCore<T>::getMacros() const
 {
-  macros = macros_;
+  return macros_;
 }
 
 // Private functions

src/mpl/src/SimulatedAnnealingCore.h

@@ -83,7 +83,7 @@ class SimulatedAnnealingCore
   float getNormGuidancePenalty() const;
   float getFencePenalty() const;
   float getNormFencePenalty() const;
-  void getMacros(std::vector<T>& macros) const;
+  std::vector<T> getMacros() const;
 
   virtual void initialize() = 0;
   virtual void run() = 0;