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-rw-r--r--passes/extract/extract.cc146
1 files changed, 109 insertions, 37 deletions
diff --git a/passes/extract/extract.cc b/passes/extract/extract.cc
index db9afcc6..1b39ab25 100644
--- a/passes/extract/extract.cc
+++ b/passes/extract/extract.cc
@@ -150,6 +150,7 @@ namespace
}
}
+ // graph.print();
return true;
}
@@ -206,8 +207,10 @@ struct ExtractPass : public Pass {
ExtractPass() : Pass("extract", "find subcircuits and replace them with cells") { }
virtual void help()
{
+ // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" extract -map <map_file> [options] [selection]\n");
+ log(" extract -mine <out_file> [options] [selection]\n");
log("\n");
log("This pass looks for subcircuits that are isomorphic to any of the modules\n");
log("in the given map file and replaces them with instances of this modules. The\n");
@@ -245,6 +248,24 @@ struct ExtractPass : public Pass {
log("This pass does not operate on modules with uprocessed processes in it.\n");
log("(I.e. the 'proc' pass should be used first to convert processes to netlists.)\n");
log("\n");
+ log("This pass can also be used for mining for frequent subcircuits. In this mode\n");
+ log("the following options are to be used instead of the -map option.\n");
+ log("\n");
+ log(" -mine <out_file>\n");
+ log(" mine for frequent subcircuits and write them to the given ilang file\n");
+ log("\n");
+ log(" -mine_cells_span <min> <max>\n");
+ log(" only mine for subcircuits with the specified number of cells\n");
+ log(" default value: 3 10\n");
+ log("\n");
+ log(" -mine_min_freq <num>\n");
+ log(" only mine for subcircuits with at least the specified number of matches\n");
+ log(" default value: 10\n");
+ log("\n");
+ log(" -mine_limit_matches_per_module <num>\n");
+ log(" when calculating the number of matches for a subcircuit, don't count\n");
+ log(" more than the specified number of matches per module\n");
+ log("\n");
log("This pass operates on whole modules or selected cells from modules. Other\n");
log("selected entities (wires, etc.) are ignored.\n");
log("\n");
@@ -257,18 +278,41 @@ struct ExtractPass : public Pass {
log_push();
SubCircuit::Solver solver;
- std::vector<SubCircuit::Solver::Result> results;
std::string filename;
bool constports = false;
bool nodefaultswaps = false;
+ bool mine_mode = false;
+ int mine_cells_min = 3;
+ int mine_cells_max = 10;
+ int mine_min_freq = 10;
+ int mine_limit_mod = -1;
+
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++) {
if (args[argidx] == "-map" && argidx+1 < args.size()) {
filename = args[++argidx];
continue;
}
+ if (args[argidx] == "-mine" && argidx+1 < args.size()) {
+ filename = args[++argidx];
+ mine_mode = true;
+ continue;
+ }
+ if (args[argidx] == "-mine_cells_span" && argidx+2 < args.size()) {
+ mine_cells_min = atoi(args[++argidx].c_str());
+ mine_cells_max = atoi(args[++argidx].c_str());
+ continue;
+ }
+ if (args[argidx] == "-mine_min_freq" && argidx+1 < args.size()) {
+ mine_min_freq = atoi(args[++argidx].c_str());
+ continue;
+ }
+ if (args[argidx] == "-mine_limit_matches_per_module" && argidx+1 < args.size()) {
+ mine_limit_mod = atoi(args[++argidx].c_str());
+ continue;
+ }
if (args[argidx] == "-verbose") {
solver.setVerbose();
continue;
@@ -343,28 +387,32 @@ struct ExtractPass : public Pass {
if (filename.empty())
log_cmd_error("Missing option -map <verilog_or_ilang_file>.\n");
- FILE *f = fopen(filename.c_str(), "rt");
- if (f == NULL)
- log_cmd_error("Can't open map file `%s'.\n", filename.c_str());
-
- RTLIL::Design *map = new RTLIL::Design;
- Frontend::frontend_call(map, f, filename, (filename.size() > 3 && filename.substr(filename.size()-3) == ".il") ? "ilang" : "verilog");
+ RTLIL::Design *map = NULL;
- fclose(f);
+ if (!mine_mode)
+ {
+ FILE *f = fopen(filename.c_str(), "rt");
+ if (f == NULL)
+ log_cmd_error("Can't open map file `%s'.\n", filename.c_str());
+ map = new RTLIL::Design;
+ Frontend::frontend_call(map, f, filename, (filename.size() > 3 && filename.substr(filename.size()-3) == ".il") ? "ilang" : "verilog");
+ fclose(f);
+ }
std::map<std::string, RTLIL::Module*> needle_map, haystack_map;
log_header("Creating graphs for SubCircuit library.\n");
- for (auto &mod_it : map->modules) {
- SubCircuit::Graph mod_graph;
- std::string graph_name = "needle_" + RTLIL::unescape_id(mod_it.first);
- log("Creating needle graph %s.\n", graph_name.c_str());
- if (module2graph(mod_graph, mod_it.second, constports)) {
- solver.addGraph(graph_name, mod_graph);
- needle_map[graph_name] = mod_it.second;
+ if (!mine_mode)
+ for (auto &mod_it : map->modules) {
+ SubCircuit::Graph mod_graph;
+ std::string graph_name = "needle_" + RTLIL::unescape_id(mod_it.first);
+ log("Creating needle graph %s.\n", graph_name.c_str());
+ if (module2graph(mod_graph, mod_it.second, constports)) {
+ solver.addGraph(graph_name, mod_graph);
+ needle_map[graph_name] = mod_it.second;
+ }
}
- }
for (auto &mod_it : design->modules) {
SubCircuit::Graph mod_graph;
@@ -376,33 +424,57 @@ struct ExtractPass : public Pass {
}
}
- log_header("Running solver from SubCircuit library.\n");
+ if (!mine_mode)
+ {
+ std::vector<SubCircuit::Solver::Result> results;
+ log_header("Running solver from SubCircuit library.\n");
- for (auto &needle_it : needle_map)
- for (auto &haystack_it : haystack_map) {
- log("Solving for %s in %s.\n", needle_it.first.c_str(), haystack_it.first.c_str());
- solver.solve(results, needle_it.first, haystack_it.first, false);
- }
- log("Found %zd matches.\n", results.size());
+ for (auto &needle_it : needle_map)
+ for (auto &haystack_it : haystack_map) {
+ log("Solving for %s in %s.\n", needle_it.first.c_str(), haystack_it.first.c_str());
+ solver.solve(results, needle_it.first, haystack_it.first, false);
+ }
+ log("Found %zd matches.\n", results.size());
- if (results.size() > 0)
- {
- log_header("Substitute SubCircuits with cells.\n");
-
- for (int i = 0; i < int(results.size()); i++) {
- auto &result = results[i];
- log("\nMatch #%d: (%s in %s)\n", i, result.needleGraphId.c_str(), result.haystackGraphId.c_str());
- for (const auto &it : result.mappings) {
- log(" %s -> %s", it.first.c_str(), it.second.haystackNodeId.c_str());
- for (const auto & it2 : it.second.portMapping)
- log(" %s:%s", it2.first.c_str(), it2.second.c_str());
- log("\n");
+ if (results.size() > 0)
+ {
+ log_header("Substitute SubCircuits with cells.\n");
+
+ for (int i = 0; i < int(results.size()); i++) {
+ auto &result = results[i];
+ log("\nMatch #%d: (%s in %s)\n", i, result.needleGraphId.c_str(), result.haystackGraphId.c_str());
+ for (const auto &it : result.mappings) {
+ log(" %s -> %s", it.first.c_str(), it.second.haystackNodeId.c_str());
+ for (const auto & it2 : it.second.portMapping)
+ log(" %s:%s", it2.first.c_str(), it2.second.c_str());
+ log("\n");
+ }
+ replace(needle_map.at(result.needleGraphId), haystack_map.at(result.haystackGraphId), result);
}
- replace(needle_map.at(result.needleGraphId), haystack_map.at(result.haystackGraphId), result);
+ }
+
+ delete map;
+ }
+ else
+ {
+ std::vector<SubCircuit::Solver::MineResult> results;
+
+ log_header("Running miner from SubCircuit library.\n");
+ solver.mine(results, mine_cells_min, mine_cells_max, mine_min_freq, mine_limit_mod);
+
+ // FIXME: Create output file
+
+ for (auto &result: results) {
+ printf("\nFrequent SubCircuit with %d nodes and %d matches:\n", int(result.nodes.size()), result.totalMatchesAfterLimits);
+ printf(" primary match in %s:", result.graphId.c_str());
+ for (auto & node : result.nodes)
+ printf(" %s", node.nodeId.c_str());
+ printf("\n");
+ for (auto & it : result.matchesPerGraph)
+ printf(" matches in %s: %d\n", it.first.c_str(), it.second);
}
}
- delete map;
log_pop();
}
} ExtractPass;