From 4992aa21c05a8476ea38d4fc2b207231b04d5b92 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Bylica?= <pawel.bylica@imapp.pl>
Date: Thu, 14 May 2015 10:50:37 +0200
Subject: [PATCH] Remove unused code

---
 libevmjit/Stack.cpp | 90 ---------------------------------------------
 libevmjit/Stack.h   |  3 --
 2 files changed, 93 deletions(-)

diff --git a/libevmjit/Stack.cpp b/libevmjit/Stack.cpp
index 7cf514dea..b47567f17 100644
--- a/libevmjit/Stack.cpp
+++ b/libevmjit/Stack.cpp
@@ -23,96 +23,6 @@ Stack::Stack(llvm::IRBuilder<>& _builder, RuntimeManager& _runtimeManager):
 	m_stack(_builder, "stack")
 {}
 
-llvm::Function* Stack::getPushFunc()
-{
-	auto& func = m_push;
-	if (!func)
-	{
-		llvm::Type* argTypes[] = {Type::RuntimePtr, Type::Word};
-		func = llvm::Function::Create(llvm::FunctionType::get(Type::Void, argTypes, false), llvm::Function::ExternalLinkage, "stack.push", getModule());
-		llvm::Type* extArgTypes[] = {Type::RuntimePtr, Type::WordPtr};
-		auto extPushFunc = llvm::Function::Create(llvm::FunctionType::get(Type::Void, extArgTypes, false), llvm::Function::ExternalLinkage, "stack_push", getModule());
-
-		auto rt = &func->getArgumentList().front();
-		rt->setName("rt");
-		auto value = rt->getNextNode();
-		value->setName("value");
-
-		InsertPointGuard guard{m_builder};
-		auto entryBB = llvm::BasicBlock::Create(m_builder.getContext(), {}, func);
-		m_builder.SetInsertPoint(entryBB);
-		auto a = m_builder.CreateAlloca(Type::Word);
-		m_builder.CreateStore(value, a);
-		createCall(extPushFunc, {rt, a});
-		m_builder.CreateRetVoid();
-	}
-	return func;
-}
-
-llvm::Function* Stack::getSetFunc()
-{
-	auto& func = m_set;
-	if (!func)
-	{
-		llvm::Type* argTypes[] = {Type::RuntimePtr, Type::Size, Type::Word};
-		func = llvm::Function::Create(llvm::FunctionType::get(Type::Void, argTypes, false), llvm::Function::ExternalLinkage, "stack.set", getModule());
-		llvm::Type* extArgTypes[] = {Type::RuntimePtr, Type::Size, Type::WordPtr};
-		auto extSetFunc = llvm::Function::Create(llvm::FunctionType::get(Type::Void, extArgTypes, false), llvm::Function::ExternalLinkage, "stack_set", getModule());
-
-		auto rt = &func->getArgumentList().front();
-		rt->setName("rt");
-		auto index = rt->getNextNode();
-		index->setName("index");
-		auto value = index->getNextNode();
-		value->setName("value");
-
-		InsertPointGuard guard{m_builder};
-		auto entryBB = llvm::BasicBlock::Create(m_builder.getContext(), {}, func);
-		m_builder.SetInsertPoint(entryBB);
-		auto a = m_builder.CreateAlloca(Type::Word);
-		m_builder.CreateStore(value, a);
-		createCall(extSetFunc, {rt, index, a});
-		m_builder.CreateRetVoid();
-	}
-	return func;
-}
-
-llvm::Function* Stack::getPopFunc()
-{
-	auto& func = m_pop;
-	if (!func)
-	{
-		llvm::Type* argTypes[] = {Type::RuntimePtr, Type::Size, Type::BytePtr};
-		func = llvm::Function::Create(llvm::FunctionType::get(Type::Void, argTypes, false), llvm::Function::ExternalLinkage, "stack.pop", getModule());
-		llvm::Type* extArgTypes[] = {Type::RuntimePtr, Type::Size};
-		auto extPopFunc = llvm::Function::Create(llvm::FunctionType::get(Type::Bool, extArgTypes, false), llvm::Function::ExternalLinkage, "stack_pop", getModule());
-
-		auto rt = &func->getArgumentList().front();
-		rt->setName("rt");
-		auto index = rt->getNextNode();
-		index->setName("index");
-		auto jmpBuf = index->getNextNode();
-		jmpBuf->setName("jmpBuf");
-
-		InsertPointGuard guard{m_builder};
-		auto entryBB = llvm::BasicBlock::Create(m_builder.getContext(), {}, func);
-		auto underflowBB = llvm::BasicBlock::Create(m_builder.getContext(), "Underflow", func);
-		auto returnBB = llvm::BasicBlock::Create(m_builder.getContext(), "Return", func);
-
-		m_builder.SetInsertPoint(entryBB);
-		auto ok = createCall(extPopFunc, {rt, index});
-		m_builder.CreateCondBr(ok, returnBB, underflowBB); //TODO: Add branch weight
-
-		m_builder.SetInsertPoint(underflowBB);
-		m_runtimeManager.abort(jmpBuf);
-		m_builder.CreateUnreachable();
-
-		m_builder.SetInsertPoint(returnBB);
-		m_builder.CreateRetVoid();
-	}
-	return func;
-}
-
 llvm::Function* Stack::getGetFunc()
 {
 	auto& func = m_get;
diff --git a/libevmjit/Stack.h b/libevmjit/Stack.h
index 3c526f0d3..6f7ad1c0b 100644
--- a/libevmjit/Stack.h
+++ b/libevmjit/Stack.h
@@ -24,10 +24,7 @@ public:
 	void free() { m_stack.free(); }
 
 private:
-	llvm::Function* getPopFunc();
-	llvm::Function* getPushFunc();
 	llvm::Function* getGetFunc();
-	llvm::Function* getSetFunc();
 
 	RuntimeManager& m_runtimeManager;