From c238f45ecfd4fa3d556ea885a53d8e864e3c7566 Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Thu, 26 Oct 2017 18:02:15 +0200
Subject: [PATCH] Fix memory corruption bug in opt_rmdff

---
 passes/opt/opt_rmdff.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/passes/opt/opt_rmdff.cc b/passes/opt/opt_rmdff.cc
index 02f3e93f5..edec42c4d 100644
--- a/passes/opt/opt_rmdff.cc
+++ b/passes/opt/opt_rmdff.cc
@@ -430,6 +430,8 @@ struct OptRmdffPass : public Pass {
 
 			assign_map.set(module);
 			dff_init_map.set(module);
+			mux_drivers.clear();
+			init_attributes.clear();
 
 			for (auto wire : module->wires())
 			{
@@ -534,6 +536,7 @@ struct OptRmdffPass : public Pass {
 
 		assign_map.clear();
 		mux_drivers.clear();
+		init_attributes.clear();
 
 		if (total_count || total_initdrv)
 			design->scratchpad_set_bool("opt.did_something", true);
-- 
2.30.2