From 52fbe7dbfd57f4e884992b6596d54aadb070bd41 Mon Sep 17 00:00:00 2001
From: Gav Wood <i@gavwood.com>
Date: Tue, 27 May 2014 14:02:15 +0200
Subject: [PATCH] Start of pinhole optimiser. Minor fix for debugger.

---
 Assembly.cpp | 2 ++
 Assembly.h   | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/Assembly.cpp b/Assembly.cpp
index 3614bfc48..aebe71850 100644
--- a/Assembly.cpp
+++ b/Assembly.cpp
@@ -144,6 +144,8 @@ AssemblyItem const& Assembly::append(AssemblyItem const& _i)
 
 void Assembly::optimise()
 {
+	std::vector<pair<  vector<int>,  function< vector<AssemblyItem>(vector<AssemblyItem>) >  >> rules;
+//	rules.insert(make_pair({(int)Instruction::ADD, (int)Instruction::ADD, -(int)Push}, []() {}));
 }
 
 bytes Assembly::assemble() const
diff --git a/Assembly.h b/Assembly.h
index 26392d141..5194d23fa 100644
--- a/Assembly.h
+++ b/Assembly.h
@@ -51,11 +51,15 @@ public:
 
 	int deposit() const;
 
+	bool operator==(int _mask) const { return -_mask == (int)m_type || (m_type == Operation && _mask == (int)m_data); }
+
 private:
 	AssemblyItemType m_type;
 	u256 m_data;
 };
 
+inline bool operator==(int _i, AssemblyItem _ai) { return _ai.operator==(_i); }
+
 class Assembly
 {
 public: