Exemplo n.º 1
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;
  }
Exemplo n.º 2
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;
  }
Exemplo n.º 3
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);
  }
Exemplo n.º 4
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);
    }
  }
Exemplo n.º 5
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);
        }
      }
    }
  }
Exemplo n.º 6
0
  // This method adds the monitorenter/exit statements into whichever pegChain contains the
  // corresponding node statement
  protected void addMonitorStmt() {
    // System.out.println("====entering addMonitorStmt");
    if (synch.size() > 0) {
      // System.out.println("synch: "+synch);
      Iterator<List> it = synch.iterator();
      while (it.hasNext()) {
        List list = it.next();

        JPegStmt node = (JPegStmt) list.get(0);
        JPegStmt enter = (JPegStmt) list.get(1);
        JPegStmt exit = (JPegStmt) list.get(2);
        //		System.out.println("monitor node: "+node);
        // System.out.println("monitor enter: "+enter);
        // System.out.println("monitor exit: "+exit);
        // add for test
        // System.out.println("allNodes contains node: "+allNodes.contains(node));
        // end add for test

        {
          if (!mainPegChain.contains(node)) {

            boolean find = false;
            // System.out.println("main chain does not contain node");
            Set maps = startToThread.entrySet();
            // System.out.println("size of startToThread: "+startToThread.size());
            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();
                //	testPegChain(chain);
                if (chain.contains(node)) {
                  find = true;
                  // System.out.println("---find it---");
                  chain.add(enter);
                  chain.add(exit);
                  break;
                }
              }
            }
            if (find == false) {
              System.err.println("fail to find stmt: " + node + " in chains!");
              System.exit(1);
            }

            // this.toString();
          } else {
            mainPegChain.add(enter);
            mainPegChain.add(exit);
          }
        }

        allNodes.add(enter);
        allNodes.add(exit);

        insertBefore(node, enter);
        insertAfter(node, exit);
      }
    }
    // add for test
    /*
    {
    // System.out.println("===main peg chain===");
     //testPegChain(mainPegChain);
      //System.out.println("===end main peg chain===");
       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();
       testPegChain(chain);
       }
       }
       }
       */
    //	System.out.println(this.toString());
    // end add for test
  }