Method compileBasicBlock

src/cpp-ethereum/evmjit/libevmjit/Compiler.cpp:213–936

void Compiler::compileBasicBlock(BasicBlock& _basicBlock, RuntimeManager& _runtimeManager,
								 Arith256& _arith, Memory& _memory, Ext& _ext, GasMeter& _gasMeter)
{
	m_builder.SetInsertPoint(_basicBlock.llvm());
	LocalStack stack{m_builder, _runtimeManager};

	for (auto it = _basicBlock.begin(); it != _basicBlock.end(); ++it)
	{
		auto inst = Instruction(*it);

		_gasMeter.count(inst);

		switch (inst)
		{

		case Instruction::ADD:
		{
			auto lhs = stack.pop();
			auto rhs = stack.pop();
			auto result = m_builder.CreateAdd(lhs, rhs);
			stack.push(result);
			break;
		}

		case Instruction::SUB:
		{
			auto lhs = stack.pop();
			auto rhs = stack.pop();
			auto result = m_builder.CreateSub(lhs, rhs);
			stack.push(result);
			break;
		}

		case Instruction::MUL:
		{
			auto lhs = stack.pop();
			auto rhs = stack.pop();
			auto res = m_builder.CreateMul(lhs, rhs);
			stack.push(res);
			break;
		}

		case Instruction::DIV:
		{
			auto d = stack.pop();
			auto n = stack.pop();
			auto divByZero = m_builder.CreateICmpEQ(n, Constant::get(0));
			n = m_builder.CreateSelect(divByZero, Constant::get(1), n); // protect against hardware signal
			auto r = m_builder.CreateUDiv(d, n);
			r = m_builder.CreateSelect(divByZero, Constant::get(0), r);
			stack.push(r);
			break;
		}

		case Instruction::SDIV:
		{
			auto d = stack.pop();
			auto n = stack.pop();