Method getLoop

GPCS4/Graphics/Gcn/ControlFlowGraph/GcnLoopInfo.cpp:130–139

	}

	GcnLoop* GcnLoopInfo::getLoop(GcnCfgVertex vertex) const
	{
		GcnLoop* loop = nullptr;
		auto     iter = m_vertexMap.find(vertex);
		if (iter != m_vertexMap.end())
		{
			loop = iter->second;
		}
		return loop;
	}

	bool GcnLoopInfo::isLoopHeader(GcnCfgVertex vtx) const
	{