grt: clang-tidy

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

Author: eder-matheus

src/grt/include/grt/GlobalRouter.h

@@ -149,7 +149,7 @@ class GlobalRouter : public ant::GlobalRouteSource
   void readGuides(const char* file_name);
   void loadGuidesFromDB();
   void saveGuidesFromFile(std::unordered_map<odb::dbNet*, Guides>& guides);
-  void saveGuides(std::vector<odb::dbNet*> nets);
+  void saveGuides(const std::vector<odb::dbNet*>& nets);
   void writeSegments(const char* file_name);
   void readSegments(const char* file_name);
   bool netIsCovered(odb::dbNet* db_net, std::string& pins_not_covered);

src/grt/src/GlobalRouter.cpp

@@ -330,6 +330,7 @@ void GlobalRouter::globalRoute(bool save_guides,
     }
     if (save_guides) {
       std::vector<odb::dbNet*> nets;
+      nets.reserve(block_->getNets().size());
       for (odb::dbNet* db_net : block_->getNets()) {
         nets.push_back(db_net);
       }
@@ -2405,7 +2406,7 @@ void GlobalRouter::saveGuidesFromFile(
   }
 }
 
-void GlobalRouter::saveGuides(std::vector<odb::dbNet*> nets)
+void GlobalRouter::saveGuides(const std::vector<odb::dbNet*>& nets)
 {
   int offset_x = grid_origin_.x();
   int offset_y = grid_origin_.y();
@@ -4817,6 +4818,7 @@ std::vector<Net*> GlobalRouter::updateDirtyRoutes(bool save_guides)
   std::vector<Net*> dirty_nets;
   if (!dirty_nets_.empty()) {
     std::vector<odb::dbNet*> modified_nets;
+    modified_nets.reserve(dirty_nets.size());
     for (const Net* net : dirty_nets) {
       modified_nets.push_back(net->getDbNet());
     }