Merge pull request verilog-to-routing#370 from SymbiFlow/read_edge_metadata

Add read edge metadata flag

Author: litghost

vpr/src/base/SetupVPR.cpp

@@ -343,6 +343,7 @@ static void SetupRouterOpts(const t_options& Options, t_router_opts* RouterOpts)
     RouterOpts->router_algorithm = Options.RouterAlgorithm;
     RouterOpts->fixed_channel_width = Options.RouteChanWidth;
     RouterOpts->min_channel_width_hint = Options.min_route_chan_width_hint;
+    RouterOpts->read_edge_metadata = Options.read_edge_metadata;
 
     //TODO document these?
     RouterOpts->trim_empty_channels = false; /* DEFAULT */

vpr/src/base/read_options.cpp

@@ -1650,6 +1650,11 @@ argparse::ArgumentParser create_arg_parser(std::string prog_name, t_options& arg
         .default_value("off")
         .show_in(argparse::ShowIn::HELP_ONLY);
 
+    route_timing_grp.add_argument<bool, ParseOnOff>(args.read_edge_metadata, "--read_edge_metadata")
+        .help("Read edge metadata from --read_rr_graph.  Edge metadata is not used in core VPR algorithms, and is typically not read to save runtime and memory. (Default: off).")
+        .default_value("off")
+        .show_in(argparse::ShowIn::HELP_ONLY);
+
     route_timing_grp.add_argument(args.router_debug_net, "--router_debug_net")
         .help(
             "Controls when router debugging is enabled.\n"

vpr/src/base/read_options.h

@@ -136,6 +136,7 @@ struct t_options {
     argparse::ArgValue<int> min_incremental_reroute_fanout;
     argparse::ArgValue<bool> disable_check_route;
     argparse::ArgValue<bool> quick_check_route;
+    argparse::ArgValue<bool> read_edge_metadata;
 
     /* Timing-driven router options only */
     argparse::ArgValue<float> astar_fac;

vpr/src/route/connection_box.h

@@ -4,11 +4,13 @@
 // This class relates IPIN rr nodes with connection box type and locations, used
 // for connection box driven map lookahead.
 
+#include <map>
+#include <string>
 #include <tuple>
-#include "vtr_strong_id.h"
+
 #include "vtr_flat_map.h"
 #include "vtr_range.h"
-#include <map>
+#include "vtr_strong_id.h"
 
 struct connection_box_tag {};
 typedef vtr::StrongId<connection_box_tag> ConnectionBoxId;