From 41b69df2cb0f554dc31f0320360e339cf2edb9d2 Mon Sep 17 00:00:00 2001
From: "Emil J. Tywoniak" <emil@tywoniak.eu>
Date: Mon, 6 Apr 2026 15:09:42 +0200
Subject: [PATCH] abc_new: stable TopoSort

---
 passes/techmap/abc_new.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/passes/techmap/abc_new.cc b/passes/techmap/abc_new.cc
index 4e279c577..0afabce11 100644
--- a/passes/techmap/abc_new.cc
+++ b/passes/techmap/abc_new.cc
@@ -18,7 +18,7 @@
  */
 
 #include "kernel/register.h"
-#include "kernel/rtlil.h"
+#include "kernel/yosys_common.h"
 #include "kernel/utils.h"
 
 USING_YOSYS_NAMESPACE
@@ -27,7 +27,8 @@ PRIVATE_NAMESPACE_BEGIN
 std::vector<Module*> order_modules(Design *design, std::vector<Module *> modules)
 {
 	std::set<Module *> modules_set(modules.begin(), modules.end());
-	TopoSort<Module*> sort;
+	using Order = IdString::compare_ptr_by_name<RTLIL::NamedObject>;
+	TopoSort<Module*, Order> sort;
 
 	for (auto m : modules) {
 		sort.node(m);