From 82fa3560372bd89ad0985644a76cdd14f6701ec2 Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Wed, 23 Jul 2014 23:58:03 +0200
Subject: Added hashing to RTLIL::SigSpec relational and equal operators

---
 kernel/rtlil.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'kernel/rtlil.h')

diff --git a/kernel/rtlil.h b/kernel/rtlil.h
index 95de5f8c6..c25f71855 100644
--- a/kernel/rtlil.h
+++ b/kernel/rtlil.h
@@ -505,13 +505,18 @@ struct RTLIL::SigSpecIterator {
 
 struct RTLIL::SigSpec {
 private:
+	int width_;
+	unsigned long hash_;
 	std::vector<RTLIL::SigChunk> chunks_; // LSB at index 0
 	std::vector<RTLIL::SigBit> bits_; // LSB at index 0
-	int width_;
 
 	void pack() const;
 	void unpack() const;
-	bool packed() const;
+	void hash() const;
+
+	inline bool packed() const {
+		return bits_.empty();
+	}
 
 	inline void inline_unpack() const {
 		if (!chunks_.empty())
-- 
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