vpr: base: add option for dumping merged netlist

Signed-off-by: Pawel Czarnecki <[email protected]>

Author: lpawelcz

vpr/src/base/SetupVPR.cpp

@@ -623,6 +623,7 @@ static void SetupAnalysisOpts(const t_options& Options, t_analysis_opts& analysi
     }
 
     analysis_opts.gen_post_synthesis_netlist = Options.Generate_Post_Synthesis_Netlist;
+    analysis_opts.gen_post_synthesis_merged_netlist = Options.Generate_Post_Synthesis_Merged_Netlist;
 
     analysis_opts.timing_report_npaths = Options.timing_report_npaths;
     analysis_opts.timing_report_detail = Options.timing_report_detail;

vpr/src/base/read_options.cpp

@@ -2532,6 +2532,13 @@ argparse::ArgumentParser create_arg_parser(std::string prog_name, t_options& arg
         .default_value("off")
         .show_in(argparse::ShowIn::HELP_ONLY);
 
+    analysis_grp.add_argument<bool, ParseOnOff>(args.Generate_Post_Synthesis_Merged_Netlist, "--gen_post_synthesis_merged_netlist")
+        .help(
+            "Generates the post-synthesis netlist with merged top module ports"
+            " Used for post-implementation simulation and verification")
+        .default_value("off")
+        .show_in(argparse::ShowIn::HELP_ONLY);
+
     analysis_grp.add_argument(args.timing_report_npaths, "--timing_report_npaths")
         .help("Controls how many timing paths are reported.")
         .default_value("100")

vpr/src/base/read_options.h

@@ -208,6 +208,7 @@ struct t_options {
     /* Analysis options */
     argparse::ArgValue<bool> full_stats;
     argparse::ArgValue<bool> Generate_Post_Synthesis_Netlist;
+    argparse::ArgValue<bool> Generate_Post_Synthesis_Merged_Netlist;
     argparse::ArgValue<int> timing_report_npaths;
     argparse::ArgValue<e_timing_report_detail> timing_report_detail;
     argparse::ArgValue<bool> timing_report_skew;

vpr/src/base/vpr_api.cpp

@@ -1282,6 +1282,11 @@ void vpr_analysis(t_vpr_setup& vpr_setup, const t_arch& Arch, const RouteStatus&
                            vpr_setup.AnalysisOpts);
         }
 
+        //Write the post-syntesis merged netlist
+        if (vpr_setup.AnalysisOpts.gen_post_synthesis_merged_netlist) {
+            merged_netlist_writer(atom_ctx.nlist.netlist_name().c_str(), analysis_delay_calc);
+        }
+
         //Do power analysis
         if (vpr_setup.PowerOpts.do_power) {
             vpr_power_estimation(vpr_setup, Arch, *timing_info, route_status);

vpr/src/base/vpr_types.h

@@ -1256,6 +1256,7 @@ struct t_analysis_opts {
     e_stage_action doAnalysis;
 
     bool gen_post_synthesis_netlist;
+    bool gen_post_synthesis_merged_netlist;
     e_post_synth_netlist_unconn_handling post_synth_netlist_unconn_input_handling;
     e_post_synth_netlist_unconn_handling post_synth_netlist_unconn_output_handling;