[engine] fixed a few bugs

openfpga/src/repack/repack.cpp

@@ -440,6 +440,7 @@ void add_lb_router_nets(LbRouter& lb_router,
 
   /* Cache the sink nodes/routing traces for the global nets which is specifed to be ignored on given pins */
   std::map<AtomNetId, std::vector<LbRRNodeId>> ignored_global_net_sinks;
+  std::map<AtomNetId, bool> ignored_atom_nets;
   for (int j = 0; j < lb_type->pb_type->num_pins; j++) {
     /* Get the source pb_graph pin and find the rr_node in logical block routing resource graph */
     const t_pb_graph_pin* source_pb_pin = get_pb_graph_node_pin_from_block_pin(block_id, j);
@@ -481,6 +482,7 @@ void add_lb_router_nets(LbRouter& lb_router,
       std::vector<LbRRNodeId> sink_lb_rr_nodes = find_lb_net_physical_sink_lb_rr_nodes(lb_rr_graph, sink_pb_graph_pins, device_annotation);
       VTR_ASSERT(sink_lb_rr_nodes.size() == sink_pb_graph_pins.size());
       ignored_global_net_sinks[atom_net_id].insert(ignored_global_net_sinks[atom_net_id].end(), sink_lb_rr_nodes.begin(), sink_lb_rr_nodes.end());
+      ignored_atom_nets[atom_net_id] = true;
     }
   }
 
@@ -507,6 +509,12 @@ void add_lb_router_nets(LbRouter& lb_router,
     /* Find the net mapped to this pin in clustering results*/
     AtomNetId atom_net_id = pb_pin_mapped_nets[source_pb_pin];
 
+    BasicPort curr_pin(std::string(source_pb_pin->port->name), source_pb_pin->pin_number, source_pb_pin->pin_number);
+    if ( (ignored_atom_nets[atom_net_id]) 
+      && (options.is_pin_ignore_global_nets(std::string(lb_type->pb_type->name), curr_pin))) {
+      continue;
+    }
+
     /* Check if the net information is constrained or not */
     std::string constrained_net_name = design_constraints.find_constrained_pin_net(std::string(lb_type->pb_type->name), BasicPort(std::string(source_pb_pin->port->name), source_pb_pin->pin_number, source_pb_pin->pin_number));
 
@@ -622,7 +630,7 @@ void add_lb_router_nets(LbRouter& lb_router,
 
     /* Append sink nodes from ignored global net cache */
     sink_lb_rr_nodes.insert(sink_lb_rr_nodes.end(), ignored_global_net_sinks[atom_net_id_to_route].begin(), ignored_global_net_sinks[atom_net_id_to_route].end());
-    VTR_LOGV(verbose, "Append %ld sinks from the routing traces of ignored global nets\n", ignored_global_net_sinks.size());
+    VTR_LOGV(verbose, "Append %ld sinks from the routing traces of ignored global nets\n", ignored_global_net_sinks[atom_net_id_to_route].size());
 
     /* Add the net */
     add_lb_router_net_to_route(lb_router, lb_rr_graph,

openfpga/src/repack/repack_option.cpp

@@ -68,7 +68,7 @@ void RepackOption::set_ignore_global_nets_on_pins(const std::string& content) {
     std::vector<std::string> pin_info = pin_tokenizer.split('.');
     /* Expect two contents, otherwise error out */
     if (pin_info.size() != 2) {
-      std::string err_msg = std::string("Invalid content '") + token + std::string("' to skip, expect <pb_type_name>.<pin>");
+      std::string err_msg = std::string("Invalid content '") + token + std::string("' to skip, expect <pb_type_name>.<pin>\n");
       VTR_LOG_ERROR(err_msg.c_str());
       num_parse_errors_++;
       continue;
@@ -77,7 +77,7 @@ void RepackOption::set_ignore_global_nets_on_pins(const std::string& content) {
     PortParser port_parser(pin_info[1]);
     BasicPort curr_port = port_parser.port();
     if (!curr_port.is_valid()) {
-      std::string err_msg = std::string("Invalid pin definition '") + token + std::string("', expect <pb_type_name>.<pin_name>[int:int]");
+      std::string err_msg = std::string("Invalid pin definition '") + token + std::string("', expect <pb_type_name>.<pin_name>[int:int]\n");
       VTR_LOG_ERROR(err_msg.c_str());
       num_parse_errors_++;
       continue;
@@ -87,22 +87,29 @@ void RepackOption::set_ignore_global_nets_on_pins(const std::string& content) {
     auto result = ignore_global_nets_on_pins_.find(pb_type_name);
     if (result == ignore_global_nets_on_pins_.end()) {
       /* Not found, push the port */
-      result->second.push_back(curr_port);
+      ignore_global_nets_on_pins_[pb_type_name].push_back(curr_port);
     } else {
       /* Already a list of ports. Check one by one. 
        * - It already contained, do nothing but throw a warning. 
        * - If we can merge, merge it.
        * - Otherwise, create it */
+      bool included_by_existing_port = false;
       for (BasicPort existing_port : result->second) {
         if (existing_port.mergeable(curr_port)) {
           if (!existing_port.contained(curr_port)) {
             result->second.push_back(curr_port);
-          }
+            included_by_existing_port = true;
+            break;
           } else {
-          result->second.push_back(curr_port);
+            std::string warn_msg = std::string("Pin definition '") + token + std::string("' is already included by other pin\n");
+            VTR_LOG_WARN(warn_msg.c_str());
           }
         }
       }
+      if (!included_by_existing_port) {
+        result->second.push_back(curr_port);
+      }
+    }
   }
 }
 

openfpga_flow/openfpga_shell_scripts/ignore_global_nets_on_pins_example_script.openfpga

@@ -33,7 +33,7 @@ write_fabric_hierarchy --file ./fabric_hierarchy.txt
 # Repack the netlist to physical pbs
 # This must be done before bitstream generator and testbench generation
 # Strongly recommend it is done after all the fix-up have been applied
-repack --ignore_global_nets_on_pins clb.I #--verbose
+repack --ignore_global_nets_on_pins clb.I[0:11] #--verbose
 
 # Build the bitstream
 #  - Output the fabric-independent bitstream to a file