Exemplo n.º 1
0
        public MOPAlgorithm(List <BlockInfo <T> > blocksInfo, ControlFlowGraph.ControlFlowGraph graph,
                            Func <IEnumerable <BlockInfo <T> >, BlockInfo <T>, BlockInfo <T> > meetOperator, bool isForward,
                            IEnumerable <T> initValueEntryExit, IEnumerable <T> initValueOthers,
                            TransferFunction <BlockInfo <T> > function)
        {
            BlocksInfo    = blocksInfo;
            Graph         = graph;
            MeetOperator  = meetOperator;
            IsForward     = isForward;
            InitEntryExit = new HashSet <T>(initValueEntryExit);
            InitOther     = new HashSet <T>(initValueOthers);
            Function      = function;
            ways          = new LinkedList <LinkedList <BlockInfo <T> > >();

            int countBlocks = Graph.blocks.Count;

            for (int i = 0; i < countBlocks; i++)
            {
                BlocksInfo[i].IN  = InitEntryExit;
                BlocksInfo[i].OUT = InitOther;
            }

            if (IsForward)
            {
                BlocksInfo[0].OUT = InitEntryExit;
            }
            else
            {
                BlocksInfo[countBlocks - 1].IN = InitEntryExit;
            }
        }
Exemplo n.º 2
0
        //Конструктор
        public DetectReversibleEdges(ControlFlowGraph.ControlFlowGraph cfg)
        {
            var dom = new DominatorsFinder(cfg);

            dominators = dom.Find();

            var spt = new SpanTree(cfg);

            edges = spt.buildSpanTree();
        }
Exemplo n.º 3
0
        //Конструктор
        public DetectReversibleEdges(ControlFlowGraph.ControlFlowGraph cfg)
        {
            var dom = new DominatorsFinder(cfg);

            dominators = dom.Find();

            var spt = new SpanTree(cfg);

            edges = spt.buildSpanTree();

            foreach (var e in edges)
            {
                isReversible[e] = dominators.Keys.Contains(e.v1.num) &&
                                  dominators[e.v1.num].Contains(e.v2.num);
            }
        }
Exemplo n.º 4
0
        public static void Main(string[] args)
        {
            string FileName = @"../../../data/DeadOrAliveOptimizationTest.txt";

            if (args.Length > 0)
            {
                FileName = args[0];
            }
            try {
                string Text = File.ReadAllText(FileName);

                Scanner scanner = new Scanner();
                scanner.SetSource(Text, 0);

                Parser parser = new Parser(scanner);

                var b = parser.Parse();
                if (!b)
                {
                    Console.WriteLine("Ошибка");
                }
                else
                {
                    Console.WriteLine("Синтаксическое дерево построено");
                    var r = parser.root;

                    FillParentVisitor generateParrent = new FillParentVisitor();
                    r.Visit(generateParrent);

                    {
                        ThreeAddressCodeVisitor treeCod2e = new ThreeAddressCodeVisitor();
                        r.Visit(treeCod2e);
                        //var blocks = new Block(treeCod2e).GenerateBlocks();

                        AutoThreeCodeOptimiser ap2p = new AutoThreeCodeOptimiser();
                        ap2p.Add(new DeadOrAliveOptimizationAdapter());

                        var blockwss = ap2p.Apply(treeCod2e);
                        Console.WriteLine(ThreeAddressCodeVisitor.ToString(blockwss));
                    }


                    //Console.WriteLine(r.ToString());

                    /*Opt2Visitor opt2 = new Opt2Visitor();
                     *                  r.Visit(opt2);
                     *
                     * PrettyPrintVisitor ppvis = new PrettyPrintVisitor();
                     * r.Visit(ppvis);
                     * Console.WriteLine(ppvis.Text);
                     *
                     * Console.WriteLine("\nAssignCountVisitor");
                     * AssignCountVisitor vis1 = new AssignCountVisitor();
                     * r.Visit(vis1);
                     * Console.WriteLine(vis1.Count);
                     *
                     * Console.WriteLine("\nStatementCountVisitor");
                     * StatementCountVisitor vis2 = new StatementCountVisitor();
                     * r.Visit(vis2);
                     * Console.WriteLine(vis2.Count);
                     *
                     * Console.WriteLine("\nMaxCountExprOpsVisitor");
                     *                  MaxCountExprOpsVisitor vis3 = new MaxCountExprOpsVisitor();
                     *                  r.Visit(vis3);
                     *                  Console.WriteLine(vis3.Max);
                     *
                     *                  Console.WriteLine("\nNestedCyclesVisitor");
                     *                  NestedCyclesVisitor vis4 = new NestedCyclesVisitor();
                     *                  r.Visit(vis4);
                     *                  Console.WriteLine(vis4.HasNestedCycles);
                     *
                     *                  Console.WriteLine("\nCycleNestedToIfVisitor");
                     *                  CycleNestedToIfVisitor vis5 = new CycleNestedToIfVisitor();
                     *                  r.Visit(vis5);
                     *                  Console.WriteLine(vis5.HasCycleNestedToIf);
                     *
                     * Console.WriteLine("\nIfNestedToCycleVisitor");
                     * IfNestedToCycleVisitor vis6 = new IfNestedToCycleVisitor();
                     * r.Visit(vis6);
                     * Console.WriteLine(vis6.HasIfNestedToCycle);
                     *
                     * Console.WriteLine("\nMaxDepthOfNestedCyclesVisitor");
                     * MaxDepthOfNestedCyclesVisitor vis7 = new MaxDepthOfNestedCyclesVisitor();
                     * r.Visit(vis7);
                     * Console.WriteLine(vis7.Max);*/

                    Console.WriteLine("\nGenerate Three address code");

                    ThreeAddressCodeVisitor treeCode = new ThreeAddressCodeVisitor();
                    r.Visit(treeCode);
                    var blocks           = new Block(treeCode).GenerateBlocks();
                    CFG controlFlowGraph = new CFG(blocks);

                    Console.WriteLine("\nГлубина графа:\n" + GraphDepth.GetGraphDepth(controlFlowGraph));
                    Console.WriteLine(treeCode.ToString());

                    // выполнение оптимизации для программы, не разбитой на блоки
                    //DeadOrAliveOptimization.DeleteDeadVariables(treeCode.GetCode());
                    // вычисление множеств Def и Use для всего графа потоков данных

                    /*var DefUse = new DefUseBlocks(controlFlowGraph);
                     *
                     * var InOut = new InOutActiveVariables(DefUse, controlFlowGraph);
                     *
                     * ControlFlowOptimisations.DeadOrAliveOnGraph(InOut, controlFlowGraph);
                     *
                     * var DefUse = new DefUseBlocks(controlFlowGraph);
                     *
                     * GraphToDOTHelper.SaveAsDOT("C:\\Users\\vladr\\Desktop\\graph.dot", controlFlowGraph);
                     * var InOut = new InOutActiveVariables(DefUse, controlFlowGraph);
                     *
                     * //ControlFlowOptimisations.DeadOrAliveOnGraph(InOut, controlFlowGraph);
                     * Console.WriteLine("\nafter DeleteDeadVariables for graph\n");
                     * foreach (var block in controlFlowGraph.blocks)
                     *  foreach (var line in block)
                     *      Console.WriteLine(line);
                     *
                     * Console.Write("");*/
                    //DeadOrAliveOptimization.



                    /* SimpleLang.Compiler.ILCodeGenerator gen = new SimpleLang.Compiler.ILCodeGenerator();
                     * gen.Generate(treeCode.GetCode());
                     *
                     *                   gen.PrintCommands();
                     * Console.WriteLine("\nExecute:");
                     * gen.Execute();
                     *
                     * Console.Write("");*/

                    //DeadOrAliveOptimization.

                    /*CFG cfg = SimpleLang.GenericIterativeAlgorithm.Test
                     *  .DeadOrAliveOptimization(controlFlowGraph.blocks);
                     * Console.WriteLine("\nafter DeadOrAliveOptimization\n");
                     * Console.WriteLine(cfg);*/

                    /*var constPropOptimizer = new ConstantPropagationOptimizer();
                     * CFG cfg1 = constPropOptimizer.ApplyOptimization(controlFlowGraph.blocks);
                     * Console.WriteLine("\nafter ConstantPropagationOptimization\n");
                     * Console.WriteLine(cfg1);*/

                    //var reachingDefsTest = new ReachingDefsTest();
                    //reachingDefsTest.IterativeAlgorithm(controlFlowGraph.blocks);
                    //reachingDefsTest.PrintOutput();


                    //SimpleLang.Compiler.ILCodeGenerator gen = new SimpleLang.Compiler.ILCodeGenerator();
                    //gen.Generate(treeCode.GetCode());
                    //gen.PrintCommands();
                    //Console.WriteLine("\nExecute:");
                    //gen.Execute();


                    AutoThreeCodeOptimiser app = new AutoThreeCodeOptimiser();
                    app.Add(new DistributionOfConstants());
                    app.Add(new EvalConstExpr());
                    app.Add(new ApplyAlgebraicIdentities());

                    var blockws = app.Apply(treeCode);
                    Console.WriteLine(ThreeAddressCodeVisitor.ToString(blockws));

                    /*CFG cfg = new CFG(blocks);
                     * TransferFunction tf = new TransferFunction(cfg);
                     * Console.WriteLine("\nGen 1");
                     * foreach (var d in tf.Gen(blocks[0]))
                     *      Console.WriteLine(d);
                     * Console.WriteLine("\nGen");
                     * foreach (var d in tf.Gen(blocks[3]))
                     *      Console.WriteLine(d);
                     * Console.WriteLine("\nKill");
                     * foreach (var d in tf.Kill(blocks[3]))
                     *      Console.WriteLine(d);
                     *
                     * Console.WriteLine("\nTransfer function");
                     * var f = tf.BlockTransferFunction(blocks[3]);
                     * foreach (var d in f(tf.Gen(blocks[0])))
                     *      Console.WriteLine(d);
                     *
                     * var code = treeCode.GetCode();
                     * app.Apply(code);*/



                    /*Opt11Visitor opt11vis = new Opt11Visitor();
                     * ppvis.Text = "";
                     * r.Visit(opt11vis);
                     * r.Visit(ppvis);
                     * Console.WriteLine(ppvis.Text);*/


                    /*var avis = new AssignCountVisitor();
                     * parser.root.Visit(avis);
                     * Console.WriteLine("Количество присваиваний = {0}", avis.Count);
                     * Console.WriteLine("-------------------------------");
                     *
                     * var pp = new PrettyPrintVisitor();
                     * parser.root.Visit(pp);
                     * Console.WriteLine(pp.Text);*/
                }
            }
            catch (FileNotFoundException)
            {
                Console.WriteLine("Файл {0} не найден", FileName);
            }
            catch (Exception e)
            {
                Console.WriteLine("{0}", e);
            }

            Console.ReadLine();

            // ========
            // My part, don't touch !!!

            // Sorry for this troubles, I deleted bad part

            // CFG controlFlowGraph = new CFG(blocks);
            // Console.WriteLine(treeCode.ToString());
            // // выполнение оптимизации для программы, не разбитой на блоки
            // //DeadOrAliveOptimization.DeleteDeadVariables(treeCode.GetCode());
            // // вычисление множеств Def и Use для всего графа потоков данных
            // var DefUse = new DefUseBlocks(controlFlowGraph);
            //
            // var InOut = new InOutActiveVariables(DefUse, controlFlowGraph);
            //
            // ControlFlowOptimisations.DeadOrAliveOnGraph(InOut, controlFlowGraph);
            // Console.WriteLine("\nafter DeleteDeadVariables for graph\n");
            // foreach (var block in controlFlowGraph.blocks)
            //     foreach (var line in block)
            //         Console.WriteLine(line);
            // Console.Write("");

            // ========
        }