4 files changed, 22 insertions, 10 deletions

diff --git a/kernel/rtlil.h b/kernel/rtlil.h
index 3a0f0ff8..2c4b26f5 100644
--- a/kernel/rtlil.h
+++ b/kernel/rtlil.h
@@ -255,12 +255,24 @@ namespace RTLIL
 		return log_id(str);
 	}
 
-	template <typename T> struct sort_by_name {
+	template <typename T> struct sort_by_name_id {
 		bool operator()(T *a, T *b) const {
 			return a->name < b->name;
 		}
 	};
 
+	template <typename T> struct sort_by_name_str {
+		bool operator()(T *a, T *b) const {
+			return strcmp(a->name.c_str(), b->name.c_str()) < 0;
+		}
+	};
+
+	struct sort_by_id_str {
+		bool operator()(RTLIL::IdString a, RTLIL::IdString b) const {
+			return strcmp(a.c_str(), b.c_str()) < 0;
+		}
+	};
+
 	// see calc.cc for the implementation of this functions
 	RTLIL::Const const_not         (const RTLIL::Const &arg1, const RTLIL::Const &arg2, bool signed1, bool signed2, int result_len);
 	RTLIL::Const const_and         (const RTLIL::Const &arg1, const RTLIL::Const &arg2, bool signed1, bool signed2, int result_len);
diff --git a/passes/fsm/fsm_expand.cc b/passes/fsm/fsm_expand.cc
index 77821326..d1364391 100644
--- a/passes/fsm/fsm_expand.cc
+++ b/passes/fsm/fsm_expand.cc
@@ -30,12 +30,12 @@ struct FsmExpand
 	RTLIL::Module *module;
 	RTLIL::Cell *fsm_cell;
 	SigMap assign_map;
-	SigSet<RTLIL::Cell*, RTLIL::sort_by_name<RTLIL::Cell>> sig2driver, sig2user;
+	SigSet<RTLIL::Cell*, RTLIL::sort_by_name_id<RTLIL::Cell>> sig2driver, sig2user;
 	CellTypes ct;
 
-	std::set<RTLIL::Cell*, RTLIL::sort_by_name<RTLIL::Cell>> merged_set;
-	std::set<RTLIL::Cell*, RTLIL::sort_by_name<RTLIL::Cell>> current_set;
-	std::set<RTLIL::Cell*, RTLIL::sort_by_name<RTLIL::Cell>> no_candidate_set;
+	std::set<RTLIL::Cell*, RTLIL::sort_by_name_id<RTLIL::Cell>> merged_set;
+	std::set<RTLIL::Cell*, RTLIL::sort_by_name_id<RTLIL::Cell>> current_set;
+	std::set<RTLIL::Cell*, RTLIL::sort_by_name_id<RTLIL::Cell>> no_candidate_set;
 
 	bool already_optimized;
 	int limit_transitions;
diff --git a/passes/opt/opt_clean.cc b/passes/opt/opt_clean.cc
index c620531e..d47e4513 100644
--- a/passes/opt/opt_clean.cc
+++ b/passes/opt/opt_clean.cc
@@ -34,7 +34,7 @@ static int count_rm_cells, count_rm_wires;
 static void rmunused_module_cells(RTLIL::Module *module, bool verbose)
 {
 	SigMap assign_map(module);
-	std::set<RTLIL::Cell*, RTLIL::sort_by_name<RTLIL::Cell>> queue, unused;
+	std::set<RTLIL::Cell*, RTLIL::sort_by_name_id<RTLIL::Cell>> queue, unused;
 
 	SigSet<RTLIL::Cell*> wire2driver;
 	for (auto &it : module->cells_) {
@@ -65,7 +65,7 @@ static void rmunused_module_cells(RTLIL::Module *module, bool verbose)
 
 	while (queue.size() > 0)
 	{
-		std::set<RTLIL::Cell*, RTLIL::sort_by_name<RTLIL::Cell>> new_queue;
+		std::set<RTLIL::Cell*, RTLIL::sort_by_name_id<RTLIL::Cell>> new_queue;
 		for (auto cell : queue)
 			unused.erase(cell);
 		for (auto cell : queue) {
diff --git a/passes/techmap/techmap.cc b/passes/techmap/techmap.cc
index a7f91e86..59173393 100644
--- a/passes/techmap/techmap.cc
+++ b/passes/techmap/techmap.cc
@@ -251,7 +251,7 @@ struct TechmapWorker
 	}
 
 	bool techmap_module(RTLIL::Design *design, RTLIL::Module *module, RTLIL::Design *map, std::set<RTLIL::Cell*> &handled_cells,
-			const std::map<RTLIL::IdString, std::set<RTLIL::IdString>> &celltypeMap, bool in_recursion)
+			const std::map<RTLIL::IdString, std::set<RTLIL::IdString, RTLIL::sort_by_id_str>> &celltypeMap, bool in_recursion)
 	{
 		std::string mapmsg_prefix = in_recursion ? "Recursively mapping" : "Mapping";
 
@@ -898,7 +898,7 @@ struct TechmapPass : public Pass {
 		}
 		map->modules_.swap(modules_new);
 
-		std::map<RTLIL::IdString, std::set<RTLIL::IdString>> celltypeMap;
+		std::map<RTLIL::IdString, std::set<RTLIL::IdString, RTLIL::sort_by_id_str>> celltypeMap;
 		for (auto &it : map->modules_) {
 			if (it.second->attributes.count("\\techmap_celltype") && !it.second->attributes.at("\\techmap_celltype").bits.empty()) {
 				char *p = strdup(it.second->attributes.at("\\techmap_celltype").decode_string().c_str());
@@ -960,7 +960,7 @@ struct FlattenPass : public Pass {
 		TechmapWorker worker;
 		worker.flatten_mode = true;
 
-		std::map<RTLIL::IdString, std::set<RTLIL::IdString>> celltypeMap;
+		std::map<RTLIL::IdString, std::set<RTLIL::IdString, RTLIL::sort_by_id_str>> celltypeMap;
 		for (auto &it : design->modules_)
 			celltypeMap[it.first].insert(it.first);