From b6f624b56bc3adee55743c4bd383414ea5b07c72 Mon Sep 17 00:00:00 2001
From: whitequark <whitequark@whitequark.org>
Date: Thu, 16 Apr 2020 21:49:49 +0000
Subject: [PATCH] rtlil: add AttrObject::has_attribute.

---
 kernel/rtlil.cc | 5 +++++
 kernel/rtlil.h  | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/kernel/rtlil.cc b/kernel/rtlil.cc
index 9ecad056f..8af941c85 100644
--- a/kernel/rtlil.cc
+++ b/kernel/rtlil.cc
@@ -273,6 +273,11 @@ bool RTLIL::Const::is_fully_undef() const
 	return true;
 }
 
+bool RTLIL::AttrObject::has_attribute(RTLIL::IdString id) const
+{
+	return attributes.count(id);
+}
+
 void RTLIL::AttrObject::set_bool_attribute(RTLIL::IdString id, bool value)
 {
 	if (value)
diff --git a/kernel/rtlil.h b/kernel/rtlil.h
index fe9e21c31..f3b1c9ae7 100644
--- a/kernel/rtlil.h
+++ b/kernel/rtlil.h
@@ -656,6 +656,8 @@ struct RTLIL::AttrObject
 {
 	dict<RTLIL::IdString, RTLIL::Const> attributes;
 
+	bool has_attribute(RTLIL::IdString id) const;
+
 	void set_bool_attribute(RTLIL::IdString id, bool value=true);
 	bool get_bool_attribute(RTLIL::IdString id) const;
 
-- 
2.30.2