Merge pull request The-OpenROAD-Project#9281 from The-OpenROAD-Project-staging/fix-res_aware_coverity_scan

grt: fix uninitialized detour penalty variable

Author: maliberty

src/grt/src/fastroute/src/FastRoute.cpp

@@ -65,7 +65,8 @@ FastRouteCore::FastRouteCore(odb::dbDatabase* db,
       logger_(log),
       stt_builder_(stt_builder),
       sta_(sta),
-      debug_(new DebugSetting())
+      debug_(new DebugSetting()),
+      detour_penalty_(0)
 {
 }
 

src/grt/src/fastroute/src/maze3D.cpp

@@ -714,12 +714,15 @@ void FastRouteCore::mazeRouteMSMDOrder3D(int expand,
     }
   }
 
+  const int kLowDetourPenalty = 5;
+  const int kHighDetourPenalty = 15;
+
   if (enable_resistance_aware_) {
-    // More flexible during repair stages
-    const int kDetourPenalty = is_incremental_grt_ ? 5 : 15;
     updateSlacks();
     netpinOrderInc();
-    setDetourPenalty(kDetourPenalty);
+    // More flexible during repair stages
+    setDetourPenalty(is_incremental_grt_ ? kLowDetourPenalty
+                                         : kHighDetourPenalty);
   }
 
   const int endIND = tree_order_pv_.size() * 0.9;