Merge pull request #10207 from The-OpenROAD-Project-staging/grt-bug-skipping-edges

grt: fix bug skipping edges in maze route 3D

Author: eder-matheus

src/grt/README.md

@@ -282,6 +282,7 @@ global_route_debug
     [-rst]
     [-tree2D]
     [-tree3D]
+	[-edges3D]
     [-saveSttInput file_name]
     [-net net_name]
 ```
@@ -294,6 +295,7 @@ global_route_debug
 | `-rst` | Show the Rectilinear Steiner Tree generated by `grt`. |
 | `-tree2D` | Show the Rectilinear Steiner Tree generated by `grt` after the overflow iterations. |
 | `-tree3D` | Show the 3D Rectilinear Steiner Tree post-layer assignment. |
+| `-edges3D` | Show each edge being rerouted post-layer assignment. |
 | `-saveSttInput` | File name to save `stt` input of a net. |
 | `-net` | The name of the net name to be displayed. |
 

src/grt/include/grt/GlobalRouter.h

@@ -276,6 +276,7 @@ class GlobalRouter
   void setDebugRectilinearSTree(bool rectilinearSTree);
   void setDebugTree2D(bool tree2D);
   void setDebugTree3D(bool tree3D);
+  void setDebugEdges3D(bool edges3D);
   void setSttInputFilename(const char* file_name);
 
   void saveSttInputFile(Net* net);

src/grt/src/GlobalRouter.cpp

@@ -5801,6 +5801,10 @@ void GlobalRouter::setDebugTree3D(bool tree3D)
 {
   fastroute_->setDebugTree3D(tree3D);
 }
+void GlobalRouter::setDebugEdges3D(bool edges3D)
+{
+  fastroute_->setDebugEdges3D(edges3D);
+}
 void GlobalRouter::setSttInputFilename(const char* file_name)
 {
   fastroute_->setSttInputFilename(file_name);

src/grt/src/GlobalRouter.i

@@ -225,7 +225,8 @@ void set_global_route_debug_cmd(const odb::dbNet *net,
                                 bool steinerTree,
                                 bool rectilinearSTree,
                                 bool tree2D,
-                                bool tree3D)
+                                bool tree3D,
+                                bool edges3D)
 {
   if (!gui::Gui::enabled()) {
     return;
@@ -241,6 +242,7 @@ void set_global_route_debug_cmd(const odb::dbNet *net,
   getGlobalRouter()->setDebugRectilinearSTree(rectilinearSTree);
   getGlobalRouter()->setDebugTree2D(tree2D);
   getGlobalRouter()->setDebugTree3D(tree3D);
+  getGlobalRouter()->setDebugEdges3D(edges3D);
 }
 
 void set_global_route_debug_stt_input_filename(const char* file_name)

src/grt/src/GlobalRouter.tcl

@@ -403,29 +403,31 @@ sta::define_cmd_args "global_route_debug" {
   [-rst]      # Show the Rectilinear Steiner Tree generated by FastRoute
   [-tree2D]   # Show the Rectilinear Steiner Tree generated by FastRoute after overflow iterations
   [-tree3D]   # Show The Rectilinear Steiner Tree 3D after layer assignment
+  [-edges3D]  # Show edges being rerouted during maze route 3D
   [-saveSttInput file_name] # Save the stt input for a net on file_name
   [-net name]
 }
 
 proc global_route_debug { args } {
   sta::parse_key_args "global_route_debug" args \
     keys {-saveSttInput -net} \
-    flags {-st -rst -tree2D -tree3D}
+    flags {-st -rst -tree2D -tree3D -edges3D}
 
   sta::check_argc_eq0 "global_route_debug" $args
 
   set st [info exists flags(-st)]
   set rst [info exists flags(-rst)]
   set tree2D [info exists flags(-tree2D)]
   set tree3D [info exists flags(-tree3D)]
+  set edges3D [info exists flags(-edges3D)]
   set db_block [ord::get_db_block]
 
   if { [info exists keys(-net)] } {
     set net [$db_block findNet $keys(-net)]
     if { $net == "NULL" } {
       utl::error GRT 231 "Net name not found."
     }
-    grt::set_global_route_debug_cmd $net $st $rst $tree2D $tree3D
+    grt::set_global_route_debug_cmd $net $st $rst $tree2D $tree3D $edges3D
     if { [info exists keys(-saveSttInput)] } {
       set file_name $keys(-saveSttInput)
       grt::set_global_route_debug_stt_input_filename $file_name

src/grt/src/fastroute/include/FastRoute.h

@@ -62,6 +62,7 @@ struct DebugSetting
   bool rectilinearSTree = false;
   bool tree2D = false;
   bool tree3D = false;
+  bool edges3D = false;
   std::unique_ptr<AbstractFastRouteRenderer> renderer;
   std::string sttInputFileName;
 
@@ -265,6 +266,7 @@ class FastRouteCore
   void setDebugRectilinearSTree(bool rectiliniarSTree);
   void setDebugTree2D(bool tree2D);
   void setDebugTree3D(bool tree3D);
+  void setDebugEdges3D(bool edges3D);
   void setSttInputFilename(const char* file_name);
   std::string getSttInputFileName();
   const odb::dbNet* getDebugNet();

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

@@ -2217,6 +2217,10 @@ void FastRouteCore::setDebugTree3D(bool tree3D)
 {
   debug_->tree3D = tree3D;
 }
+void FastRouteCore::setDebugEdges3D(bool edges3D)
+{
+  debug_->edges3D = edges3D;
+}
 void FastRouteCore::setDebugNet(const odb::dbNet* net)
 {
   debug_->net = net;