Beispiel #1
1
  protected void computeEdgeAndThreadNo() {
    Iterator it = iterator();
    int numberOfEdge = 0;
    while (it.hasNext()) {
      List succList = (List) getSuccsOf(it.next());

      numberOfEdge = numberOfEdge + succList.size();
    }
    numberOfEdge = numberOfEdge + startToThread.size();

    System.err.println("**number of edges: " + numberOfEdge);

    System.err.println("**number of threads: " + (startToThread.size() + 1));

    /*	Set keySet = startToThread.keySet();
    Iterator keyIt = keySet.iterator();
    while (keyIt.hasNext()){
    List list = (List)startToThread.get(keyIt.next());
    System.out.println("********start thread:");
    Iterator itit = list.iterator();
    while (itit.hasNext()){
    System.out.println(it.next());
    }
    }
    */

  }
Beispiel #2
0
  protected void testPegChain(Chain chain) {
    System.out.println("******** chain********");
    Iterator it = chain.iterator();
    while (it.hasNext()) {
      /*Object o = it.next();
      System.out.println(o);
      if (!(o instanceof JPegStmt))  System.out.println("not instanceof JPegStmt: "+o);
      JPegStmt s = (JPegStmt)o;
      */
      JPegStmt stmt = (JPegStmt) it.next();
      System.out.println(stmt.toString());
      /*if (stmt.getName().equals("start")){

      System.out.println("find start method in : " + stmt.toString() );
      List list =(List)startToThread.get(stmt);
      Iterator chainIt = list.iterator();
      while (chainIt.hasNext()){
      Chain chain = (Chain)chainIt.next();
      Iterator subit = chain.iterator();
      while (subit.hasNext()){
      System.out.println("**" + ((JPegStmt)subit.next()).toString());
      }
      }
      System.out.println("$$$$$$returing to main chain");
      }
      */
    }
  }
Beispiel #3
0
  private void insertAfter(JPegStmt node, JPegStmt after) {
    // System.out.println("node: "+node);
    // System.out.println("after: "+after);
    //		System.out.println("succs of node: "+getSuccsOf(node));

    // this must be done first because the succs of node will be chanaged lately
    List succOfAfter = new ArrayList();
    succOfAfter.addAll(getSuccsOf(node));
    unitToSuccs.put(after, succOfAfter);

    Iterator succsIt = getSuccsOf(node).iterator();
    while (succsIt.hasNext()) {
      Object succ = succsIt.next();
      List pred = getPredsOf(succ);
      pred.remove(node);
      pred.add(after);
    }

    List succOfNode = new ArrayList();
    succOfNode.add(after);
    unitToSuccs.put(node, succOfNode);

    List predOfAfter = new ArrayList();
    predOfAfter.add(node);
    unitToPreds.put(after, predOfAfter);

    //	buildPredecessor(Chain pegChain);
  }
Beispiel #4
0
  protected void testStartToThread() {
    System.out.println("=====test startToThread ");
    Set maps = startToThread.entrySet();
    for (Iterator iter = maps.iterator(); iter.hasNext(); ) {
      Map.Entry entry = (Map.Entry) iter.next();
      JPegStmt key = (JPegStmt) entry.getKey();
      Tag tag = (Tag) key.getTags().get(0);
      System.out.println("---key=  " + tag + " " + key);
      /*	    List list = (List)entry.getValue();
      if (list.size()>0){

      System.out.println("**thread set:");
      Iterator it = list.iterator();
      while (it.hasNext()){
      Chain chain =(Chain)it.next();
      Iterator chainIt = chain.iterator();

      System.out.println("the size of chain is: "+chain.size());
      while (chainIt.hasNext()){
      JPegStmt stmt = (JPegStmt)chainIt.next();
      System.out.println(stmt);
      }
      }
      }
      */
    }
    System.out.println("=========startToThread--ends--------");
  }
Beispiel #5
0
 protected void testList(List list) {
   //		System.out.println("test list");
   Iterator listIt = list.iterator();
   while (listIt.hasNext()) {
     System.out.println(listIt.next());
   }
 }
Beispiel #6
0
 // helper function
 protected void testIterator() {
   System.out.println("********begin test iterator*******");
   Iterator testIt = iterator();
   while (testIt.hasNext()) {
     System.out.println(testIt.next());
   }
   System.out.println("********end test iterator*******");
   System.out.println("=======size is: " + size());
 }
Beispiel #7
0
 protected void testSet(Set set, String name) {
   System.out.println("$test set " + name);
   Iterator setIt = set.iterator();
   while (setIt.hasNext()) {
     Object s = setIt.next();
     // JPegStmt s = (JPegStmt)setIt.next();
     // Tag tag = (Tag)s.getTags().get(0);
     System.out.println(s);
   }
 }
Beispiel #8
0
 protected void testSynch() {
   Iterator<List> it = synch.iterator();
   System.out.println("========test synch======");
   while (it.hasNext()) {
     // JPegStmt s = (JPegStmt)it.next();
     // Tag tag = (Tag)s.getTags().get(0);
     // System.out.println(tag+" "+s);
     System.out.println(it.next());
   }
   System.out.println("========end test synch======");
 }
Beispiel #9
0
 protected void testUnitToPeg(HashMap unitToPeg) {
   System.out.println("=====test unitToPeg ");
   Set maps = unitToPeg.entrySet();
   for (Iterator iter = maps.iterator(); iter.hasNext(); ) {
     Map.Entry entry = (Map.Entry) iter.next();
     System.out.println("---key=  " + entry.getKey());
     JPegStmt s = (JPegStmt) entry.getValue();
     System.out.println("--value= " + s);
   }
   System.out.println("=========unitToPeg--ends--------");
 }
Beispiel #10
0
  protected void testJoinStmtToThread() {
    System.out.println("=====test JoinStmtToThread");
    Set maps = threadNameToStart.entrySet();
    for (Iterator iter = maps.iterator(); iter.hasNext(); ) {
      Map.Entry entry = (Map.Entry) iter.next();
      Object key = entry.getKey();

      System.out.println("---key=  " + key);

      System.out.println("value: " + entry.getValue());
    }
    System.out.println("=========JoinStmtToThread--ends--------");
  }
Beispiel #11
0
  protected void addTag() {
    // add tag for each stmt
    Iterator it = iterator();
    //		int count = 0;

    while (it.hasNext()) {
      JPegStmt stmt = (JPegStmt) it.next();
      int count = Counter.getTagNo();
      //			count++;
      StringTag t = new StringTag(Integer.toString(count));
      stmt.addTag(t);
    }
  }
Beispiel #12
0
  protected void testThreadNameToStart() {
    System.out.println("=====test ThreadNameToStart");
    Set maps = threadNameToStart.entrySet();
    for (Iterator iter = maps.iterator(); iter.hasNext(); ) {
      Map.Entry entry = (Map.Entry) iter.next();
      Object key = entry.getKey();

      System.out.println("---key=  " + key);
      JPegStmt stmt = (JPegStmt) entry.getValue();
      Tag tag1 = (Tag) stmt.getTags().get(0);
      System.out.println("value: " + tag1 + " " + stmt);
    }
    System.out.println("=========ThreadNameToStart--ends--------");
  }
Beispiel #13
0
  private boolean removeBeginNode() {
    List heads = getHeads();
    if (heads.size() != 1) {
      // System.out.println("heads: "+heads);
      // System.out.println("Error: the size of heads is not equal to 1!");
      return false;
      //	    System.exit(1);
    } else {
      JPegStmt head = (JPegStmt) heads.get(0);
      // System.out.println("test head: "+head);
      if (!head.getName().equals("begin")) {
        System.err.println("Error: the head is not begin node!");
        System.exit(1);
      }
      // remove begin node from heads list
      heads.remove(0);
      // set the preds list of the succs of head to a new list and put succs of head into heads
      Iterator succOfHeadIt = getSuccsOf(head).iterator();
      while (succOfHeadIt.hasNext()) {

        JPegStmt succOfHead = (JPegStmt) succOfHeadIt.next();

        unitToPreds.put(succOfHead, new ArrayList());
        // put succs of head into heads
        heads.add(succOfHead);
      }
      // remove begin node from inlinee Peg
      if (!mainPegChain.remove(head)) {
        System.err.println("fail to remove begin node in from mainPegChain!");
        System.exit(1);
      }
      if (!allNodes.contains(head)) {
        System.err.println("fail to find begin node in FlowSet allNodes!");
        System.exit(1);
      } else {
        allNodes.remove(head);
      }

      // remove begin node from unitToSuccs
      if (unitToSuccs.containsKey(head)) {
        unitToSuccs.remove(head);
      }
    }

    return true;
  }
Beispiel #14
0
  public String toString() {
    Iterator it = iterator();
    StringBuffer buf = new StringBuffer();
    while (it.hasNext()) {
      JPegStmt u = (JPegStmt) it.next();
      buf.append("u is: " + u + "\n");
      List l = new ArrayList();
      l.addAll(getPredsOf(u));
      buf.append("preds: " + l + "\n");
      // buf.append(u.toString() + '\n');
      l = new ArrayList();
      l.addAll(getSuccsOf(u));
      buf.append("succs: " + l + "\n");
    }

    return buf.toString();
  }
Beispiel #15
0
  /**
   * given a DelayabilityAnalysis and the computations of each unit, calculates the latest
   * computation-point for each expression.<br>
   * the <code>equivRhsMap</code> could be calculated on the fly, but it is <b>very</b> likely that
   * it already exists (as similar maps are used for calculating Earliestness, Delayed,...<br>
   * the shared set allows more efficient set-operations, when they the computation is merged with
   * other analyses/computations.
   *
   * @param dg a ExceptionalUnitGraph
   * @param delayed the delayability-analysis of the same graph.
   * @param equivRhsMap all computations of the graph
   * @param set the shared flowSet
   */
  public LatestComputation(
      UnitGraph unitGraph, DelayabilityAnalysis delayed, Map equivRhsMap, BoundedFlowSet set) {
    unitToLatest = new HashMap<Unit, FlowSet>(unitGraph.size() + 1, 0.7f);

    Iterator unitIt = unitGraph.iterator();
    while (unitIt.hasNext()) {
      /* create a new Earliest-list for each unit */
      Unit currentUnit = (Unit) unitIt.next();

      /* basically the latest-set is:
       * (delayed) INTERSECT (comp UNION (UNION_successors ~Delayed)) =
       * (delayed) MINUS ((INTERSECTION_successors Delayed) MINUS comp).
       */

      FlowSet delaySet = (FlowSet) delayed.getFlowBefore(currentUnit);

      /* Calculate (INTERSECTION_successors Delayed) */
      FlowSet succCompSet = (FlowSet) set.topSet();
      List succList = unitGraph.getSuccsOf(currentUnit);
      Iterator succIt = succList.iterator();
      while (succIt.hasNext()) {
        Unit successor = (Unit) succIt.next();
        succCompSet.intersection((FlowSet) delayed.getFlowBefore(successor), succCompSet);
      }
      /* remove the computation of this set: succCompSet is then:
       * ((INTERSECTION_successors Delayed) MINUS comp) */
      if (equivRhsMap.get(currentUnit) != null) succCompSet.remove(equivRhsMap.get(currentUnit));

      /* make the difference: */
      FlowSet latest = (FlowSet) delaySet.emptySet();
      delaySet.difference(succCompSet, latest);

      unitToLatest.put(currentUnit, latest);
    }
  }
  /**
   * Computes the analysis given a UnitGraph computed from a method body. It is recommended that a
   * ExceptionalUnitGraph (or similar) be provided for correct results in the case of exceptional
   * control flow.
   *
   * @param g a graph on which to compute the analysis.
   * @see ExceptionalUnitGraph
   */
  public SimpleLiveLocals(UnitGraph graph) {
    if (Options.v().time()) Timers.v().liveTimer.start();

    if (Options.v().verbose())
      G.v()
          .out
          .println(
              "["
                  + graph.getBody().getMethod().getName()
                  + "]     Constructing SimpleLiveLocals...");

    SimpleLiveLocalsAnalysis analysis = new SimpleLiveLocalsAnalysis(graph);

    if (Options.v().time()) Timers.v().livePostTimer.start();

    // Build unitToLocals map
    {
      unitToLocalsAfter = new HashMap<Unit, List>(graph.size() * 2 + 1, 0.7f);
      unitToLocalsBefore = new HashMap<Unit, List>(graph.size() * 2 + 1, 0.7f);

      Iterator unitIt = graph.iterator();

      while (unitIt.hasNext()) {
        Unit s = (Unit) unitIt.next();

        FlowSet set = (FlowSet) analysis.getFlowBefore(s);
        unitToLocalsBefore.put(s, Collections.unmodifiableList(set.toList()));

        set = (FlowSet) analysis.getFlowAfter(s);
        unitToLocalsAfter.put(s, Collections.unmodifiableList(set.toList()));
      }
    }

    if (Options.v().time()) Timers.v().livePostTimer.end();

    if (Options.v().time()) Timers.v().liveTimer.end();
  }
Beispiel #17
0
  private void insertBefore(JPegStmt node, JPegStmt enter) {

    // build preds of before

    List predOfBefore = new ArrayList();
    predOfBefore.addAll(getPredsOf(node));
    unitToPreds.put(enter, predOfBefore);

    //	System.out.println("put into unitToPreds enter: "+enter);
    //	System.out.println("put into unitToPreds value: "+predOfBefore);
    Iterator predsIt = getPredsOf(node).iterator();

    // build succs of former preds of node
    while (predsIt.hasNext()) {
      Object pred = predsIt.next();

      List succ = getSuccsOf(pred);
      succ.remove(node);
      succ.add(enter);
      //	    System.out.println("in unitToPred pred: "+pred);
      //	    System.out.println("in unitToPred value is: "+succ);
    }

    List succOfBefore = new ArrayList();
    succOfBefore.add(node);
    unitToSuccs.put(enter, succOfBefore);
    //	System.out.println("put into unitToSuccs enter: "+enter);
    // System.out.println("put into unitToSuccs value: "+succOfBefore);

    List predOfNode = new ArrayList();
    predOfNode.add(enter);
    unitToPreds.put(node, predOfNode);
    // System.out.println("put into unitToPreds enter: "+node);
    // System.out.println("put into unitToPreds value: "+predOfNode);
    // buildPreds();

  }
Beispiel #18
0
  /** Prints the given <code>JimpleBody</code> to the specified <code>PrintWriter</code>. */
  private void printLocalsInBody(Body body, UnitPrinter up) {
    // Print out local variables
    {
      Map typeToLocals = new DeterministicHashMap(body.getLocalCount() * 2 + 1, 0.7f);

      // Collect locals
      {
        Iterator localIt = body.getLocals().iterator();

        while (localIt.hasNext()) {
          Local local = (Local) localIt.next();

          List localList;

          Type t = local.getType();

          if (typeToLocals.containsKey(t)) localList = (List) typeToLocals.get(t);
          else {
            localList = new ArrayList();
            typeToLocals.put(t, localList);
          }

          localList.add(local);
        }
      }

      // Print locals
      {
        Iterator typeIt = typeToLocals.keySet().iterator();

        while (typeIt.hasNext()) {
          Type type = (Type) typeIt.next();

          List localList = (List) typeToLocals.get(type);
          Object[] locals = localList.toArray();
          up.type(type);
          up.literal(" ");

          for (int k = 0; k < locals.length; k++) {
            if (k != 0) up.literal(", ");

            up.local((Local) locals[k]);
          }

          up.literal(";");
          up.newline();
        }
      }

      if (!typeToLocals.isEmpty()) {
        up.newline();
      }
    }
  }
Beispiel #19
0
  public void testMonitor() {
    System.out.println("=====test monitor size: " + monitor.size());
    Set maps = monitor.entrySet();
    for (Iterator iter = maps.iterator(); iter.hasNext(); ) {
      Map.Entry entry = (Map.Entry) iter.next();
      String key = (String) entry.getKey();

      System.out.println("---key=  " + key);
      FlowSet list = (FlowSet) entry.getValue();
      if (list.size() > 0) {

        System.out.println("**set:  " + list.size());
        Iterator it = list.iterator();
        while (it.hasNext()) {
          Object obj = it.next();
          if (obj instanceof JPegStmt) {
            JPegStmt stmt = (JPegStmt) obj;
            Tag tag1 = (Tag) stmt.getTags().get(0);
            System.out.println(tag1 + " " + stmt);
          } else {
            System.out.println("---list---");
            Iterator listIt = ((List) obj).iterator();
            while (listIt.hasNext()) {
              Object oo = listIt.next();
              if (oo instanceof JPegStmt) {
                JPegStmt unit = (JPegStmt) oo;
                Tag tag = (Tag) unit.getTags().get(0);
                System.out.println(tag + " " + unit);
              } else System.out.println(oo);
            }
            System.out.println("---list--end-");
          }
        }
      }
    }
    System.out.println("=========monitor--ends--------");
  }
Beispiel #20
0
  public void computeMonitorObjs() {
    Set maps = monitor.entrySet();
    for (Iterator iter = maps.iterator(); iter.hasNext(); ) {
      Map.Entry entry = (Map.Entry) iter.next();

      FlowSet fs = (FlowSet) entry.getValue();
      Iterator it = fs.iterator();
      while (it.hasNext()) {
        Object obj = it.next();
        if (!monitorObjs.contains(obj)) monitorObjs.add(obj);
      }
    }
  }
Beispiel #21
0
 protected void buildPreds() {
   buildPredecessor(mainPegChain);
   Set maps = getStartToThread().entrySet();
   for (Iterator iter = maps.iterator(); iter.hasNext(); ) {
     Map.Entry entry = (Map.Entry) iter.next();
     List runMethodChainList = (List) entry.getValue();
     Iterator it = runMethodChainList.iterator();
     while (it.hasNext()) {
       Chain chain = (Chain) it.next();
       //	System.out.println("chain is null: "+(chain == null));
       buildPredecessor(chain);
     }
   }
 }
Beispiel #22
0
  public void testWaitingNodes() {
    System.out.println("------waiting---begin");
    Set maps = waitingNodes.entrySet();
    for (Iterator iter = maps.iterator(); iter.hasNext(); ) {
      Map.Entry entry = (Map.Entry) iter.next();
      System.out.println("---key=  " + entry.getKey());
      FlowSet fs = (FlowSet) entry.getValue();
      if (fs.size() > 0) {

        System.out.println("**waiting nodes set:");
        Iterator it = fs.iterator();
        while (it.hasNext()) {
          JPegStmt unit = (JPegStmt) it.next();

          System.out.println(unit.toString());
        }
      }
    }
    System.out.println("------------waitingnodes---ends--------");
  }
Beispiel #23
0
  public boolean addPeg(PegGraph pg, Chain chain) {
    if (!pg.removeBeginNode()) return false;
    //		System.out.println("adding one peg into another");

    //		System.out.println("after removeBeginNode===");
    //	pg.testPegChain();
    // System.out.println(pg);

    // put every node of peg into this
    Iterator mainIt = pg.mainIterator();

    while (mainIt.hasNext()) {
      JPegStmt s = (JPegStmt) mainIt.next();
      //			System.out.println("add to mainPegChain: "+s);
      mainPegChain.addLast(s);
      //			if (chain.contains(s)){
      //				System.err.println("error! chain contains: "+s);
      //				System.exit(1);
      //			}
      //			else
      //				chain.addLast(s);

    }
    Iterator it = pg.iterator();
    while (it.hasNext()) {
      JPegStmt s = (JPegStmt) it.next();
      // System.out.println("add to allNodes: "+s);
      if (allNodes.contains(s)) {
        System.err.println("error! allNodes contains: " + s);
        System.exit(1);
      } else allNodes.add(s);
    }
    //	testPegChain();
    //	testIterator();
    unitToSuccs.putAll(pg.getUnitToSuccs());
    unitToPreds.putAll(pg.getUnitToPreds());
    //	testUnitToSucc();
    // testUnitToPred();
    //		buildMaps(pg); // RLH
    return true;
  }
Beispiel #24
0
  protected void testUnitToSucc() {
    System.out.println("=====test unitToSucc ");
    Set maps = unitToSuccs.entrySet();
    for (Iterator iter = maps.iterator(); iter.hasNext(); ) {
      Map.Entry entry = (Map.Entry) iter.next();
      JPegStmt key = (JPegStmt) entry.getKey();
      Tag tag = (Tag) key.getTags().get(0);
      System.out.println("---key=  " + tag + " " + key);
      List list = (List) entry.getValue();
      if (list.size() > 0) {

        System.out.println("**succ set: size: " + list.size());
        Iterator it = list.iterator();
        while (it.hasNext()) {
          JPegStmt stmt = (JPegStmt) it.next();
          Tag tag1 = (Tag) stmt.getTags().get(0);
          System.out.println(tag1 + " " + stmt);
        }
      }
    }
    System.out.println("=========unitToSucc--ends--------");
  }
Beispiel #25
0
  private void buildHeadsAndTails() {

    List tailList = new ArrayList();
    List headList = new ArrayList();

    // Build the sets
    {
      Iterator unitIt = mainPegChain.iterator();

      while (unitIt.hasNext()) {
        JPegStmt s = (JPegStmt) unitIt.next();

        List succs = unitToSuccs.get(s);
        if (succs.size() == 0) tailList.add(s);
        if (!unitToPreds.containsKey(s)) {
          System.err.println("unitToPreds does not contain key: " + s);
          System.exit(1);
        }
        List preds = unitToPreds.get(s);
        if (preds.size() == 0) headList.add(s);
        // System.out.println("head is:");
      }
    }
    tails = (List) tailList;
    heads = (List) headList;
    //	tails = Collections.unmodifiableList(tailList);
    // heads = Collections.unmodifiableList(headList);

    Iterator tmpIt = heads.iterator();

    while (tmpIt.hasNext()) {
      Object temp = tmpIt.next();
      // System.out.println(temp);
    }

    buildPredecessor(mainPegChain);
  }
  SimpleLiveLocalsAnalysis(UnitGraph g) {
    super(g);

    if (Options.v().time()) Timers.v().liveSetupTimer.start();

    emptySet = new ArraySparseSet();

    // Create kill sets.
    {
      unitToKillSet = new HashMap<Unit, FlowSet>(g.size() * 2 + 1, 0.7f);

      Iterator unitIt = g.iterator();

      while (unitIt.hasNext()) {
        Unit s = (Unit) unitIt.next();

        FlowSet killSet = emptySet.clone();

        Iterator boxIt = s.getDefBoxes().iterator();

        while (boxIt.hasNext()) {
          ValueBox box = (ValueBox) boxIt.next();

          if (box.getValue() instanceof Local) killSet.add(box.getValue(), killSet);
        }

        unitToKillSet.put(s, killSet);
      }
    }

    // Create generate sets
    {
      unitToGenerateSet = new HashMap<Unit, FlowSet>(g.size() * 2 + 1, 0.7f);

      Iterator unitIt = g.iterator();

      while (unitIt.hasNext()) {
        Unit s = (Unit) unitIt.next();

        FlowSet genSet = emptySet.clone();

        Iterator boxIt = s.getUseBoxes().iterator();

        while (boxIt.hasNext()) {
          ValueBox box = (ValueBox) boxIt.next();

          if (box.getValue() instanceof Local) genSet.add(box.getValue(), genSet);
        }

        unitToGenerateSet.put(s, genSet);
      }
    }

    if (Options.v().time()) Timers.v().liveSetupTimer.end();

    if (Options.v().time()) Timers.v().liveAnalysisTimer.start();

    doAnalysis();

    if (Options.v().time()) Timers.v().liveAnalysisTimer.end();
  }
  /**
   * This method pushes all newExpr down to be the stmt directly before every invoke of the init
   * only if they are in the types list
   */
  public void internalTransform(Body b, String phaseName, Map options) {
    JimpleBody body = (JimpleBody) b;

    if (Options.v().verbose())
      G.v().out.println("[" + body.getMethod().getName() + "] Folding Jimple constructors...");

    Chain units = body.getUnits();
    List<Unit> stmtList = new ArrayList<Unit>();
    stmtList.addAll(units);

    Iterator<Unit> it = stmtList.iterator();
    Iterator<Unit> nextStmtIt = stmtList.iterator();
    // start ahead one
    nextStmtIt.next();

    SmartLocalDefs localDefs = SmartLocalDefsPool.v().getSmartLocalDefsFor(body);
    UnitGraph graph = localDefs.getGraph();
    LocalUses localUses = new SimpleLocalUses(graph, localDefs);

    /* fold in NewExpr's with specialinvoke's */
    while (it.hasNext()) {
      Stmt s = (Stmt) it.next();

      if (!(s instanceof AssignStmt)) continue;

      /* this should be generalized to ArrayRefs */
      // only deal with stmts that are an local = newExpr
      Value lhs = ((AssignStmt) s).getLeftOp();
      if (!(lhs instanceof Local)) continue;

      Value rhs = ((AssignStmt) s).getRightOp();
      if (!(rhs instanceof NewExpr)) continue;

      // check if very next statement is invoke -->
      // this indicates there is no control flow between
      // new and invoke and should do nothing
      if (nextStmtIt.hasNext()) {
        Stmt next = (Stmt) nextStmtIt.next();
        if (next instanceof InvokeStmt) {
          InvokeStmt invoke = (InvokeStmt) next;

          if (invoke.getInvokeExpr() instanceof SpecialInvokeExpr) {
            SpecialInvokeExpr invokeExpr = (SpecialInvokeExpr) invoke.getInvokeExpr();
            if (invokeExpr.getBase() == lhs) {
              break;
            }
          }
        }
      }

      // check if new is in the types list - only process these
      if (!types.contains(((NewExpr) rhs).getType())) continue;

      List lu = localUses.getUsesOf(s);
      Iterator luIter = lu.iterator();
      boolean MadeNewInvokeExpr = false;

      while (luIter.hasNext()) {
        Unit use = ((UnitValueBoxPair) (luIter.next())).unit;
        if (!(use instanceof InvokeStmt)) continue;
        InvokeStmt is = (InvokeStmt) use;
        if (!(is.getInvokeExpr() instanceof SpecialInvokeExpr)
            || lhs != ((SpecialInvokeExpr) is.getInvokeExpr()).getBase()) continue;

        // make a new one here
        AssignStmt constructStmt =
            Jimple.v()
                .newAssignStmt(((DefinitionStmt) s).getLeftOp(), ((DefinitionStmt) s).getRightOp());
        constructStmt.setRightOp(Jimple.v().newNewExpr(((NewExpr) rhs).getBaseType()));
        MadeNewInvokeExpr = true;

        // redirect jumps
        use.redirectJumpsToThisTo(constructStmt);
        // insert new one here
        units.insertBefore(constructStmt, use);

        constructStmt.addTag(s.getTag("SourceLnPosTag"));
      }
      if (MadeNewInvokeExpr) {
        units.remove(s);
      }
    }
  }
Beispiel #28
0
  protected void buildSuccsForInlining(JPegStmt stmt, Chain chain, PegGraph inlinee) {
    // System.out.println("entering buildSuccsForInlining...");
    Tag tag = (Tag) stmt.getTags().get(0);
    // System.out.println("stmt is: "+tag+" "+stmt);
    /*connect heads of inlinee with the preds of invokeStmt and
     * delete stmt from the succs list from the preds
     */

    Iterator predIt = getPredsOf(stmt).iterator();
    // System.out.println("preds list: "+getPredsOf(stmt));
    // System.out.println("preds size: "+getPredsOf(stmt).size());
    Iterator headsIt = inlinee.getHeads().iterator();
    {
      // System.out.println("heads: "+inlinee.getHeads());
      while (predIt.hasNext()) {
        JPegStmt pred = (JPegStmt) predIt.next();
        // System.out.println("pred: "+pred);
        List succList = (List) getSuccsOf(pred);
        // System.out.println("succList of pred: "+succList);
        int pos = succList.indexOf(stmt);
        // System.out.println("remove : "+stmt + " from succList: \n"+succList+ "\n of pred" );
        // remove invokeStmt
        succList.remove(pos);

        while (headsIt.hasNext()) {
          succList.add(headsIt.next());
        }
        unitToSuccs.put(pred, succList);
      }

      {
        while (headsIt.hasNext()) {
          Object head = headsIt.next();
          List predsOfHeads = new ArrayList();
          predsOfHeads.addAll(getPredsOf(head));
          unitToPreds.put(head, predsOfHeads);
        }
      }
      /*
      {
      predIt = getPredsOf(stmt).iterator();
      while (predIt.hasNext()){
      JPegStmt s = (JPegStmt)predIt.next();
      if (unitToSuccs.containsKey(s)){
      Iterator succIt = ((List) unitToSuccs.get(s)).iterator();
      while(succIt.hasNext()){

      //Object successor =  succIt.next();
       JPegStmt successor = (JPegStmt)succIt.next();
       List predList = (List) unitToPreds.get(successor);
       if (predList != null) {
       try {
       predList.add(s);

       } catch(NullPointerException e) {
       System.out.println(s + "successor: " + successor);
       throw e;
       }
       }
       }
       }
       }




       }*/

    }

    /*connect tails of inlinee with the succ of invokeStmt and
     * delete stmt from the
     */

    Iterator tailsIt = inlinee.getTails().iterator();
    {
      // System.out.println("tails: "+inlinee.getTails());
      while (tailsIt.hasNext()) {
        Iterator succIt = getSuccsOf(stmt).iterator();
        JPegStmt tail = (JPegStmt) tailsIt.next();
        List succList = null;
        if (unitToSuccs.containsKey(tail)) {
          // System.out.println("error: unitToSucc containsKey: "+tail);
          succList = (List) getSuccsOf(tail);
          // System.out.println("succList: "+succList);
        } else {

          succList = new ArrayList();
        }
        while (succIt.hasNext()) {
          JPegStmt succ = (JPegStmt) succIt.next();
          succList.add(succ);
          // System.out.println("succ: "+succ);
          // remove stmt from the preds list of the succs of itself.
          List predListOfSucc = getPredsOf(succ);
          if (predListOfSucc == null) {
            System.err.println("Error: predListOfSucc is null!");
            System.exit(1);
          } else {
            if (predListOfSucc.size() != 0) {

              int pos = predListOfSucc.indexOf(stmt);
              if (pos > 0 || pos == 0) {

                //	System.out.println("remove stmt: "+stmt+" from the preds list"+predListOfSucc+"
                // of the succ");
                predListOfSucc.remove(pos);
              }

              //		System.out.println("remove(from PRED): ");
            }
          }
          unitToPreds.put(succ, predListOfSucc);
        }
        unitToSuccs.put(tail, succList);
        // System.out.println("put: "+tail);
        // System.out.println("succList: "+succList+ "into unitToSucc");

      }
    }

    // add Nov 1
    {
      tailsIt = inlinee.getTails().iterator();
      while (tailsIt.hasNext()) {
        JPegStmt s = (JPegStmt) tailsIt.next();
        if (unitToSuccs.containsKey(s)) {
          Iterator succIt = unitToSuccs.get(s).iterator();
          while (succIt.hasNext()) {

            // Object successor =  succIt.next();
            JPegStmt successor = (JPegStmt) succIt.next();
            List<JPegStmt> predList = unitToPreds.get(successor);
            if (predList != null && !predList.contains(s)) {
              try {
                predList.add(s);
                /*
                Tag tag = (Tag)successor.getTags().get(0);
                System.out.println("add "+s+" to predlist of "+tag+" "+successor);
                */
              } catch (NullPointerException e) {
                System.out.println(s + "successor: " + successor);
                throw e;
              }
            }
          }
        }
      }
    }
    // end add Nov 1

    // System.out.println("stmt: "+stmt);
    // remove stmt from allNodes and mainPegChain
    // System.out.println("mainPegChain contains stmt: "+mainPegChain.contains(stmt));
    //		testPegChain();

    if (!allNodes.contains(stmt)) {
      System.err.println("fail to find begin node in  allNodes!");
      System.exit(1);
    } else {
      allNodes.remove(stmt);
      // System.out.println("remove from allNode: "+stmt);
    }

    if (!chain.contains(stmt)) {
      System.err.println("Error! Chain does not contains stmt (extending point)!");
      System.exit(1);

    } else {
      if (!chain.remove(stmt)) {
        System.err.println("fail to remove invoke stmt in from Chain!");
        System.exit(1);
      }
    }
    /*
    if (!mainPegChain.contains(stmt)){
    boolean find = false;
    //System.out.println("main chain does not contain AFTER");
     Set maps = startToThread.entrySet();
     for(Iterator iter=maps.iterator(); iter.hasNext();){
     Map.Entry entry = (Map.Entry)iter.next();
     Object startNode = entry.getKey();
     Iterator runIt  = ((List)entry.getValue()).iterator();
     while (runIt.hasNext()){
     Chain chain=(Chain)runIt.next();
     if (chain.contains(stmt)) {
     find = true;
     if (!chain.remove(stmt)){
     System.err.println("fail to remove begin node in from mainPegChain!");
     System.exit(1);
     }
     break;
     }
     }
     if (find == false){
     System.err.println("fail to find stmt: "+stmt+" in chains!");
     System.exit(1);
     }
     }
     //this.toString();
      }
      else{
      if (!mainPegChain.remove(stmt)) {
      System.err.println("fail to remove begin node in from mainPegChain!");
      System.exit(1);
      }
      else{
      // System.out.println("remove(from mainchain): "+stmt);
       }
       }
       */
    // remove stmt from unitToSuccs and unitToPreds
    if (unitToSuccs.containsKey(stmt)) {
      unitToSuccs.remove(stmt);
    }
    if (unitToPreds.containsKey(stmt)) {
      unitToPreds.remove(stmt);
    }
  }
Beispiel #29
0
  /*
  private void deleteExitToException(){
  Iterator it = iterator();
  while (it.hasNext()){
  JPegStmt stmt = (JPegStmt)it.next();
  Unit unit = stmt.getUnit();
  UnitGraph unitGraph = stmt.getUnitGraph();
  if (unit instanceof ExitMonitorStmt){
  Iterator succIt = unitGraph.getSuccsOf(unit).iterator();
  while(succIt.next
  && exceHandlers.contains(un) ){
  System.out.println("====find it! unit: "+unit+"\n un: "+un);
  continue;
  }
  }
  }
  */
  private void buildPredecessor(Chain pegChain) {
    // System.out.println("==building predcessor===");

    // initialize the pred sets to empty
    {
      JPegStmt s = null;
      Iterator unitIt = pegChain.iterator();
      while (unitIt.hasNext()) {

        s = (JPegStmt) unitIt.next();

        unitToPreds.put(s, new ArrayList());
      }
    }
    //	System.out.println("==finish init of unitToPred===");
    {
      Iterator unitIt = pegChain.iterator();

      while (unitIt.hasNext()) {

        Object s = unitIt.next();
        //		System.out.println("s is: "+s);

        // Modify preds set for each successor for this statement
        if (unitToSuccs.containsKey(s)) {
          List succList = unitToSuccs.get(s);
          Iterator succIt = succList.iterator();
          //		    System.out.println("unitToSuccs contains "+s);
          //		    System.out.println("succList is: "+succList);
          while (succIt.hasNext()) {

            // Object successor =  succIt.next();
            JPegStmt successor = (JPegStmt) succIt.next();
            //			System.out.println("successor is: "+successor);
            List<Object> predList = unitToPreds.get(successor);
            //			System.out.println("predList is: "+predList);
            if (predList != null && !predList.contains(s)) {
              try {
                predList.add(s);
                /*
                Tag tag1 = (Tag)((JPegStmt)s).getTags().get(0);
                System.out.println("add "+tag1+" "+s+" to predListof");
                Tag tag2 = (Tag)((JPegStmt)successor).getTags().get(0);
                System.out.println(tag2+" "+successor);
                */
              } catch (NullPointerException e) {
                System.out.println(s + "successor: " + successor);
                throw e;
              }
              // if (((JPegStmt)successor).getName().equals("start")){
              if (successor instanceof StartStmt) {
                List runMethodChainList = startToThread.get(successor);
                if (runMethodChainList == null) {
                  throw new RuntimeException("null runmehtodchain: \n" + successor.getUnit());
                }
                Iterator possibleMethodIt = runMethodChainList.iterator();
                while (possibleMethodIt.hasNext()) {

                  Chain subChain = (Chain) possibleMethodIt.next();

                  buildPredecessor(subChain);
                }
              }
            } else {
              System.err.println("predlist of " + s + " is null");
              //							System.exit(1);
            }
            //			unitToPreds.put(successor, predList);

          }

        } else {
          System.err.println("unitToSuccs does not contains key" + s);
          System.exit(1);
        }
      }
    }
  }
Beispiel #30
0
  private void buildSuccessor(Chain pegChain) {

    // Add regular successors
    {
      HashMap unitToPeg = (HashMap) unitToPegMap.get(pegChain);
      Iterator pegIt = pegChain.iterator();
      JPegStmt currentNode, nextNode;
      currentNode = pegIt.hasNext() ? (JPegStmt) pegIt.next() : null;
      // June 19 add for begin node
      if (currentNode != null) {
        // System.out.println("currentNode: "+currentNode);
        // if the unit is "begin" node
        nextNode = pegIt.hasNext() ? (JPegStmt) pegIt.next() : null;

        if (currentNode.getName().equals("begin")) {
          List<JPegStmt> successors = new ArrayList<JPegStmt>();
          successors.add(nextNode);
          unitToSuccs.put(currentNode, successors);

          currentNode = nextNode;
        }
        // end June 19 add for begin node

        while (currentNode != null) {
          //		    System.out.println("currentNode: "+currentNode);
          /* If unitToSuccs contains currentNode, it is the point to inline methods,
           * we need not compute its successors again
           */

          if (unitToSuccs.containsKey(currentNode) && !currentNode.getName().equals("wait")) {
            currentNode = pegIt.hasNext() ? (JPegStmt) pegIt.next() : null;
            continue;
          }
          List<JPegStmt> successors = new ArrayList<JPegStmt>();
          Unit unit = currentNode.getUnit();

          UnitGraph unitGraph = currentNode.getUnitGraph();
          List unitSucc = unitGraph.getSuccsOf(unit);
          Iterator succIt = unitSucc.iterator();
          while (succIt.hasNext()) {
            Unit un = (Unit) succIt.next();

            // Don't build the edge from "monitor exit" to exception handler

            if (unit instanceof ExitMonitorStmt && exceHandlers.contains(un)) {
              // System.out.println("====find it! unit: "+unit+"\n un: "+un);
              continue;
            } else if (unitToPeg.containsKey(un)) {
              JPegStmt pp = (JPegStmt) (unitToPeg.get(un));
              if (pp != null && !successors.contains(pp)) successors.add(pp);
            }
          } // end while

          if (currentNode.getName().equals("wait")) {
            while (!(currentNode.getName().equals("notified-entry"))) {
              currentNode = pegIt.hasNext() ? (JPegStmt) pegIt.next() : null;
            }
            unitToSuccs.put(currentNode, successors);
            // System.out.println("put key: "+currentNode+" into unitToSucc");
          } else {
            unitToSuccs.put(currentNode, successors);
          }
          if (currentNode.getName().equals("start")) {

            //						System.out.println("-----build succ for start----");

            if (startToThread.containsKey(currentNode)) {
              List runMethodChainList = startToThread.get(currentNode);
              Iterator possibleMethodIt = runMethodChainList.iterator();
              while (possibleMethodIt.hasNext()) {

                Chain subChain = (Chain) possibleMethodIt.next();
                if (subChain != null) {
                  // System.out.println("build succ for subChain");
                  // buildSuccessor(subGraph, subChain, addExceptionEdges);
                  buildSuccessor(subChain);
                } else System.out.println("*********subgraph is null!!!");
              }
            }
          }

          currentNode = pegIt.hasNext() ? (JPegStmt) pegIt.next() : null;
        } // while

        // June 19 add for begin node
      }
      // end June 19 add for begin node
    }
  }