Method build

GPCS4/Graphics/Gcn/ControlFlowGraph/GcnStackifier.cpp:118–155

	}

	void GcnTokenListBuilder::build(GcnTokenList& tokens)
	{
		m_insertPtr = tokens.begin();
		m_tokens    = &tokens;

		auto entry = boost::vertex(0, m_cfg);
		
		m_visitedCounts[entry] = 0;
		m_visitStack.emplace_back(entry, StackElement::Delayed);
		m_visitStack.emplace_back(entry, StackElement::Immediate);

		while (!m_visitStack.empty())
		{
			auto& element = m_visitStack.back();
			if (element.m_kind == StackElement::Immediate)
			{
				m_visitStack.pop_back();
				processVertex(element.m_vertex);
			}
			else
			{
				auto& delayedVertices = m_delayedQueues[element.m_vertex];
				if (delayedVertices.empty())
				{
					m_visitStack.pop_back();
					continue;
				}

				auto vtx = delayedVertices.back();
				delayedVertices.pop_back();
				processVertex(vtx);
			}
		}

		popScopes(entry);

		LOG_ASSERT(m_scopeStack.empty(), "scope not all closed.");
	}

	void GcnTokenListBuilder::processVertex(GcnCfgVertex vtx)
	{