Method processVertex

GPCS4/Graphics/Gcn/ControlFlowGraph/GcnStackifier.cpp:157–193

	}

	void GcnTokenListBuilder::processVertex(GcnCfgVertex vtx)
	{
		//LOG_DEBUG("process vertex %d", static_cast<size_t>(vtx));
		
		// Check if we need to close some loop and/or if/else scopes
		popScopes(vtx);

		// If CurBB is the target of one or more breaks, instantiate the blocks now
		auto iter = m_blockScopes.find(vtx);
		if (iter != m_blockScopes.end())
		{
			const auto& branches = iter->second;
			processBlockScopes(branches);
			m_blockScopes.erase(vtx);
		}

		// Update the loop information and start a new one if needed
		processLoopScopes(vtx);

		// Create the token for this code block and add it to the list
		auto codeToken = makeCode(vtx);
		m_insertPtr    = m_tokens->insertAfter(m_insertPtr, codeToken);
		
		// Process the successors of this block
		// First, add the delayed node to the visit stack
		m_visitStack.emplace_back(vtx, StackElement::Delayed);

		// Then, create the successor tokens for the block (direct branch, an if/else/end chain)
		processCodeTerminator(codeToken, vtx);
		// Enqueue successors on the visit stack
		// (in reverse order so they are popped in the correct order)
		auto& term = m_cfg[vtx].terminator;
		for (int i = term.successors.size() - 1; i >= 0; --i)
		{
			enqueueSuccessor(vtx, term.successors[i]);
		}
	}

	void GcnTokenListBuilder::enqueueSuccessor(GcnCfgVertex vtx, GcnCfgVertex succ)
	{