Robust/src/Main/Main.java

   1 package Main;
   2
   3 import java.io.FileOutputStream;
   4 import java.io.PrintStream;
   5 import java.io.Reader;
   6 import java.io.BufferedReader;
   7 import java.io.FileReader;
   8 import java.io.FileInputStream;
   9 import java.util.Hashtable;
  10 import java.util.Iterator;
  11 import java.util.Set;
  12 import java.util.Vector;
  13
  14 import IR.Tree.ParseNode;
  15 import IR.Tree.BuildIR;
  16 import IR.Tree.SemanticCheck;
  17 import IR.Flat.BuildCodeMultiCore;
  18 import IR.Flat.BuildFlat;
  19 import IR.Flat.BuildCode;
  20 import IR.Flat.Inliner;
  21 import IR.ClassDescriptor;
  22 import IR.State;
  23 import IR.TaskDescriptor;
  24 import IR.TypeUtil;
  25 import Analysis.Scheduling.MCImplSynthesis;
  26 import Analysis.Scheduling.Schedule;
  27 import Analysis.Scheduling.ScheduleAnalysis;
  28 import Analysis.Scheduling.ScheduleSimulator;
  29 import Analysis.TaskStateAnalysis.TaskAnalysis;
  30 import Analysis.TaskStateAnalysis.TaskTagAnalysis;
  31 import Analysis.TaskStateAnalysis.TaskGraph;
  32 import Analysis.CallGraph.CallGraph;
  33 import Analysis.TaskStateAnalysis.FEdge;
  34 import Analysis.TaskStateAnalysis.FlagState;
  35 import Analysis.TaskStateAnalysis.TagAnalysis;
  36 import Analysis.TaskStateAnalysis.GarbageAnalysis;
  37 import Analysis.TaskStateAnalysis.ExecutionGraph;
  38 import Analysis.TaskStateAnalysis.SafetyAnalysis;
  39 import Analysis.Locality.LocalityAnalysis;
  40 import Analysis.Locality.GenerateConversions;
  41 import Analysis.Prefetch.PrefetchAnalysis;
  42 import Analysis.FlatIRGraph.FlatIRGraph;
  43 import Analysis.OwnershipAnalysis.OwnershipAnalysis;
  44 import Analysis.Disjoint.DisjointAnalysis;
  45 import Analysis.MLP.MLPAnalysis;
  46 import Analysis.Loops.*;
  47 import Analysis.Liveness;
  48 import Analysis.ArrayReferencees;
  49 import IR.MethodDescriptor;
  50 import IR.Flat.FlatMethod;
  51 import Interface.*;
  52 import Util.GraphNode;
  53 import Util.GraphNode.DFS;
  54 import Util.GraphNode.SCC;
  55
  56 public class Main {
  57
  58   /** Main method for the compiler.  */
  59
  60   public static void main(String args[]) throws Exception {
  61     String ClassLibraryPrefix="./ClassLibrary/";
  62     State state=new State();
  63     Vector sourcefiles=new Vector();
  64     state.classpath.add(".");
  65
  66     String outputdir = null;
  67     boolean isDistributeInfo = false;
  68     boolean isDisAll = false;
  69     int startnum = 0;
  70
  71     for(int i=0; i<args.length; i++) {
  72       String option=args[i];
  73       if (option.equals("-precise"))
  74         IR.Flat.BuildCode.GENERATEPRECISEGC=true;
  75       else if (option.equals("-prefetch"))
  76         state.PREFETCH=true;
  77       else if (option.equals("-dir"))
  78         IR.Flat.BuildCode.PREFIX=args[++i]+"/";
  79       else if (option.equals("-fastcheck"))
  80         state.FASTCHECK=true;
  81       else if (option.equals("-selfloop"))
  82         state.selfloops.add(args[++i]);
  83           else if (option.equals("-outputdir"))
  84         state.outputdir = args[++i];
  85       else if (option.equals("-excprefetch"))
  86         state.excprefetch.add(args[++i]);
  87       else if (option.equals("-classlibrary"))
  88         state.classpath.add(args[++i]);
  89       else if (option.equals("-inlineatomic")) {
  90         state.INLINEATOMIC=true;
  91         state.inlineatomicdepth=Integer.parseInt(args[++i]);
  92       } else if(option.equals("-numcore")) {
  93         ++i;
  94         state.CORENUM = Integer.parseInt(args[i]);
  95       } else if (option.equals("-mainclass"))
  96         state.main=args[++i];
  97       else if (option.equals("-trueprob")) {
  98         state.TRUEPROB=Double.parseDouble(args[++i]);
  99       } else if (option.equals("-printflat"))
 100         State.PRINTFLAT=true;
 101       else if (option.equals("-printscheduling"))
 102         State.PRINTSCHEDULING=true;
 103       else if (option.equals("-minimize"))
 104         state.MINIMIZE=true;
 105       else if (option.equals("-printschedulesim"))
 106         State.PRINTSCHEDULESIM=true;
 107       else if (option.equals("-printcriticalpath"))
 108           State.PRINTCRITICALPATH=true;
 109       else if (option.equals("-struct"))
 110         state.structfile=args[++i];
 111       else if (option.equals("-conscheck"))
 112         state.CONSCHECK=true;
 113       else if (option.equals("-task"))
 114         state.TASK=true;
 115       else if (option.equals("-abortreaders"))
 116         state.ABORTREADERS=true;
 117       else if (option.equals("-sandbox"))
 118         state.SANDBOX=true;
 119       else if (option.equals("-taskstate"))
 120         state.TASKSTATE=true;
 121       else if (option.equals("-tagstate"))
 122         state.TAGSTATE=true;
 123       else if (option.equals("-stmarray"))
 124         state.STMARRAY=true;
 125       else if (option.equals("-dualview"))
 126         state.DUALVIEW=true;
 127       else if (option.equals("-hybrid"))
 128         state.HYBRID=true;
 129       else if (option.equals("-flatirtasks")) {
 130         state.FLATIRGRAPH=true;
 131         state.FLATIRGRAPHTASKS=true;
 132       } else if (option.equals("-flatirusermethods")) {
 133         state.FLATIRGRAPH=true;
 134         state.FLATIRGRAPHUSERMETHODS=true;
 135       } else if (option.equals("-flatirlibmethods")) {
 136         state.FLATIRGRAPH=true;
 137         state.FLATIRGRAPHLIBMETHODS=true;
 138       } else if (option.equals("-multicore"))
 139         state.MULTICORE=true;
 140       else if (option.equals("-multicoregc"))
 141         state.MULTICOREGC=true;
 142       else if (option.equals("-ownership"))
 143         state.OWNERSHIP=true;
 144       else if (option.equals("-ownallocdepth")) {
 145         state.OWNERSHIPALLOCDEPTH=Integer.parseInt(args[++i]);
 146       } else if (option.equals("-ownwritedots")) {
 147         state.OWNERSHIPWRITEDOTS=true;
 148         if (args[++i].equals("all")) {
 149           state.OWNERSHIPWRITEALL=true;
 150         }
 151       } else if (option.equals("-ownaliasfile")) {
 152         state.OWNERSHIPALIASFILE=args[++i];
 153       } else if (option.equals("-ownaliasfiletab")) {
 154         state.OWNERSHIPALIASFILE=args[++i];
 155         state.OWNERSHIPALIASTAB=true;
 156       } else if (option.equals("-owndebugcallee")) {
 157         state.OWNERSHIPDEBUGCALLEE=args[++i];
 158       } else if (option.equals("-owndebugcaller")) {
 159         state.OWNERSHIPDEBUGCALLER=args[++i];
 160       } else if (option.equals("-owndebugcallcount")) {
 161         state.OWNERSHIPDEBUGCALLCOUNT=Integer.parseInt(args[++i]);
 162       }
 163       else if (option.equals("-disjoint"))
 164         state.DISJOINT=true;
 165       else if (option.equals("-disjoint-k")) {
 166         state.DISJOINTALLOCDEPTH=Integer.parseInt(args[++i]);
 167       } else if (option.equals("-disjoint-write-dots")) {
 168         state.DISJOINTWRITEDOTS = true;
 169         String arg = args[++i];
 170         if( arg.equals("all") ) {
 171           state.DISJOINTWRITEALL = true;
 172         } else if( arg.equals("final") ) {
 173           state.DISJOINTWRITEALL = false;
 174         } else {
 175           throw new Error("disjoint-write-dots requires argument <all/final>");
 176         }
 177       } else if (option.equals("-disjoint-alias-file")) {
 178         state.DISJOINTALIASFILE = args[++i];
 179         String arg = args[++i];
 180         if( arg.equals("normal") ) {
 181           state.DISJOINTALIASTAB = false;
 182         } else if( arg.equals("tabbed") ) {
 183           state.DISJOINTALIASTAB = true;
 184         } else {
 185           throw new Error("disjoint-alias-file requires arguments <filename> <normal/tabbed>");
 186         }
 187       } else if (option.equals("-disjoint-debug-callsite")) {
 188         state.DISJOINTDEBUGCALLEE=args[++i];
 189         state.DISJOINTDEBUGCALLER=args[++i];
 190         state.DISJOINTDEBUGCALLCOUNT=Integer.parseInt(args[++i]);
 191       }
 192       else if (option.equals("-optional"))
 193         state.OPTIONAL=true;
 194       else if (option.equals("-optimize"))
 195         state.OPTIMIZE=true;
 196       else if (option.equals("-dcopts"))
 197         state.DCOPTS=true;
 198       else if (option.equals("-arraypad"))
 199         state.ARRAYPAD=true;
 200       else if (option.equals("-delaycomp"))
 201         state.DELAYCOMP=true;
 202       else if (option.equals("-raw"))
 203         state.RAW=true;
 204       else if (option.equals("-scheduling"))
 205         state.SCHEDULING=true;
 206       else if (option.equals("-distributioninfo"))
 207         isDistributeInfo=true;
 208       else if (option.equals("-disall"))
 209         isDisAll=true;
 210       else if (option.equals("-disstart"))
 211         startnum = Integer.parseInt(args[++i]);
 212       else if (option.equals("-useprofile")) {
 213         state.USEPROFILE=true;
 214     state.profilename = args[++i];
 215       }
 216       else if (option.equals("-thread"))
 217         state.THREAD=true;
 218       else if (option.equals("-dsm"))
 219         state.DSM=true;
 220       else if (option.equals("-dsmtask"))
 221   state.DSMTASK=true;
 222       else if (option.equals("-singleTM"))
 223         state.SINGLETM=true;
 224       else if (option.equals("-readset"))
 225         state.READSET=true;
 226       else if (option.equals("-webinterface"))
 227         state.WEBINTERFACE=true;
 228       else if (option.equals("-instructionfailures"))
 229         state.INSTRUCTIONFAILURE=true;
 230       else if (option.equals("-abcclose"))
 231         state.ARRAYBOUNDARYCHECK=false;
 232
 233       else if (option.equals("-mlp")) {
 234         state.MLP            = true;
 235         state.OWNERSHIP      = true;
 236         state.MLP_NUMCORES   = Integer.parseInt( args[++i] );
 237         state.MLP_MAXSESEAGE = Integer.parseInt( args[++i] );
 238
 239       } else if (option.equals("-mlpdebug")) {
 240         state.MLPDEBUG=true;
 241
 242       } else if (option.equals("-methodeffects")) {
 243         state.METHODEFFECTS=true;
 244       }else if (option.equals("-help")) {
 245         System.out.println("-classlibrary classlibrarydirectory -- directory where classlibrary is located");
 246         System.out.println("-selfloop task -- this task doesn't self loop its parameters forever");
 247         System.out.println("-dir outputdirectory -- output code in outputdirectory");
 248         System.out.println("-struct structfile -- output structure declarations for repair tool");
 249         System.out.println("-mainclass -- main function to call");
 250         System.out.println("-dsm -- distributed shared memory support");
 251         System.out.println("-singleTM -- single machine committing transactions");
 252         System.out.println("-abortreaders -- abort readers");
 253         System.out.println("-precise -- use precise garbage collection");
 254         System.out.println("-conscheck -- turn on consistency checking");
 255         System.out.println("-task -- compiler for tasks");
 256         System.out.println("-fastcheck -- fastcheckpointing for Bristlecone");
 257         System.out.println("-thread -- threads");
 258         System.out.println("-trueprob <d> -- probability of true branch");
 259         System.out.println("-printflat -- print out flat representation");
 260         System.out.println("-instructionfailures -- insert code for instruction level failures");
 261         System.out.println("-taskstate -- do task state analysis");
 262         System.out.println("-flatirtasks -- create dot files for flat IR graphs of tasks");
 263         System.out.println("-flatirusermethods -- create dot files for flat IR graphs of user methods");
 264         System.out.println("-flatirlibmethods -- create dot files for flat IR graphs of library class methods");
 265         System.out.println("  note: -flatirusermethods or -flatirlibmethods currently generate all class method flat IR graphs");
 266         System.out.println("-ownership -- do ownership analysis");
 267         System.out.println("-ownallocdepth <d> -- set allocation depth for ownership analysis");
 268         System.out.println("-ownwritedots <all/final> -- write ownership graphs; can be all results or just final results");
 269         System.out.println("-ownaliasfile <filename> -- write a text file showing all detected aliases in program tasks");
 270         System.out.println("-optimize -- enable optimizations");
 271         System.out.println("-optional -- enable optional arguments");
 272         System.out.println("-abcclose close the array boundary check");
 273         System.out.println("-scheduling do task scheduling");
 274         System.out.println("-mlp <num cores> <max sese age> build mlp code");
 275         System.out.println("-mlpdebug if mlp, report progress and interim results");
 276         System.out.println("-multicore generate multi-core version binary");
 277         System.out.println("-numcore set the number of cores (should be used together with -multicore), defaultly set as 1");
 278         System.out.println("-interrupt generate raw version binary with interruption (should be used togethere with -raw)");
 279         System.out.println("-rawconfig config raw simulator as 4xn (should be used together with -raw)");
 280         System.out.println("-rawpath print out execute path information for raw version (should be used together with -raw)");
 281         System.out.println("-useprofile use profiling data for scheduling (should be used together with -raw)");
 282         System.out.println("-threadsimulate generate multi-thread simulate version binary");
 283         System.out.println("-rawuseio use standard io to output profiling data (should be used together with -raw and -profile), it only works with single core version");
 284         System.out.println("-printscheduling -- print out scheduling graphs");
 285         System.out.println("-printschedulesim -- print out scheduling simulation result graphs");
 286         System.out.println("-webinterface -- enable web interface");
 287         System.out.println("-help -- print out help");
 288         System.exit(0);
 289       } else {
 290         sourcefiles.add(args[i]);
 291       }
 292     }
 293
 294     //add default classpath
 295     if (state.classpath.size()==1)
 296       state.classpath.add(ClassLibraryPrefix);
 297
 298     BuildIR bir=new BuildIR(state);
 299     TypeUtil tu=new TypeUtil(state, bir);
 300
 301
 302     SemanticCheck sc=new SemanticCheck(state,tu);
 303
 304     for(int i=0;i<sourcefiles.size();i++)
 305       loadClass(state, bir,(String)sourcefiles.get(i));
 306
 307     //Stuff the runtime wants to see
 308     sc.getClass("String");
 309     sc.getClass("Math");
 310     sc.getClass("File");
 311     sc.getClass("Socket");
 312     sc.getClass("ServerSocket");
 313     sc.getClass("FileInputStream");
 314     sc.getClass("FileOutputStream");
 315     if (state.TASK) {
 316       sc.getClass("TagDescriptor");
 317     }
 318     if (state.THREAD||state.DSM||state.SINGLETM) {
 319       sc.getClass("Thread");
 320     }
 321
 322     sc.semanticCheck();
 323
 324     tu.createFullTable();
 325
 326     BuildFlat bf=new BuildFlat(state,tu);
 327     bf.buildFlat();
 328     SafetyAnalysis sa=null;
 329     PrefetchAnalysis pa=null;
 330     MLPAnalysis mlpa=null;
 331     if (state.INLINEATOMIC) {
 332       Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
 333       while(classit.hasNext()) {
 334         ClassDescriptor cn=(ClassDescriptor)classit.next();
 335         Iterator methodit=cn.getMethods();
 336         while(methodit.hasNext()) {
 337           // do inlining
 338           MethodDescriptor md=(MethodDescriptor)methodit.next();
 339           FlatMethod fm=state.getMethodFlat(md);
 340           Inliner.inlineAtomic(state, tu, fm, state.inlineatomicdepth);
 341         }
 342       }
 343     }
 344
 345
 346     if (state.OPTIMIZE) {
 347       CallGraph callgraph=new CallGraph(state);
 348       CopyPropagation cp=new CopyPropagation();
 349       DeadCode dc=new DeadCode();
 350       GlobalFieldType gft=new GlobalFieldType(callgraph, state, tu.getMain());
 351       CSE cse=new CSE(gft, tu);
 352       localCSE lcse=new localCSE(gft, tu);
 353       LoopOptimize lo=new LoopOptimize(gft, tu);
 354       Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
 355       while(classit.hasNext()) {
 356         ClassDescriptor cn=(ClassDescriptor)classit.next();
 357         Iterator methodit=cn.getMethods();
 358         while(methodit.hasNext()) {
 359           /* Classify parameters */
 360           MethodDescriptor md=(MethodDescriptor)methodit.next();
 361           FlatMethod fm=state.getMethodFlat(md);
 362           cp.optimize(fm);
 363           dc.optimize(fm);
 364           lo.optimize(fm);
 365           cp.optimize(fm);
 366           dc.optimize(fm);
 367           lcse.doAnalysis(fm);
 368           cse.doAnalysis(fm);
 369           cp.optimize(fm);
 370           dc.optimize(fm);
 371           cp.optimize(fm);
 372           dc.optimize(fm);
 373         }
 374       }
 375     }
 376
 377     if (state.FLATIRGRAPH) {
 378       FlatIRGraph firg = new FlatIRGraph(state,
 379                                          state.FLATIRGRAPHTASKS,
 380                                          state.FLATIRGRAPHUSERMETHODS,
 381                                          state.FLATIRGRAPHLIBMETHODS);
 382     }
 383
 384     if (state.OWNERSHIP && !state.MLP) {
 385       CallGraph callGraph = new CallGraph(state);
 386       Liveness liveness = new Liveness();
 387       ArrayReferencees ar = new ArrayReferencees(state);
 388       OwnershipAnalysis oa = new OwnershipAnalysis(state,
 389                                                    tu,
 390                                                    callGraph,
 391                                                    liveness,
 392                                                    ar,
 393                                                    state.OWNERSHIPALLOCDEPTH,
 394                                                    state.OWNERSHIPWRITEDOTS,
 395                                                    state.OWNERSHIPWRITEALL,
 396                                                    state.OWNERSHIPALIASFILE,
 397                                                    state.METHODEFFECTS);
 398     }
 399
 400     if (state.MLP) {
 401       CallGraph callGraph = new CallGraph(state);
 402       Liveness liveness = new Liveness();
 403       ArrayReferencees ar = new ArrayReferencees(state);
 404       OwnershipAnalysis oa = new OwnershipAnalysis(state,
 405                                                    tu,
 406                                                    callGraph,
 407                                                    liveness,
 408                                                    ar,
 409                                                    state.OWNERSHIPALLOCDEPTH,
 410                                                    state.OWNERSHIPWRITEDOTS,
 411                                                    state.OWNERSHIPWRITEALL,
 412                                                    state.OWNERSHIPALIASFILE,
 413                                                    state.METHODEFFECTS);
 414       mlpa = new MLPAnalysis(state,
 415                              tu,
 416                              callGraph,
 417                              oa);
 418     }
 419
 420     if (state.DISJOINT) {
 421       CallGraph        cg = new CallGraph(state);
 422       Liveness         l  = new Liveness();
 423       ArrayReferencees ar = new ArrayReferencees(state);
 424       DisjointAnalysis oa = new DisjointAnalysis(state, tu, cg, l, ar);
 425     }
 426
 427     if (state.TAGSTATE) {
 428       CallGraph callgraph=new CallGraph(state);
 429       TagAnalysis taganalysis=new TagAnalysis(state, callgraph);
 430       TaskTagAnalysis tta=new TaskTagAnalysis(state, taganalysis, tu);
 431     }
 432
 433     if (state.TASKSTATE) {
 434       CallGraph callgraph=new CallGraph(state);
 435       TagAnalysis taganalysis=new TagAnalysis(state, callgraph);
 436       TaskAnalysis ta=new TaskAnalysis(state, taganalysis, tu);
 437       ta.taskAnalysis();
 438       TaskGraph tg=new TaskGraph(state, ta);
 439       tg.createDOTfiles();
 440
 441       if (state.OPTIONAL) {
 442         ExecutionGraph et=new ExecutionGraph(state, ta);
 443         et.createExecutionGraph();
 444         sa = new SafetyAnalysis(et.getExecutionGraph(), state, ta);
 445         sa.doAnalysis();
 446         state.storeAnalysisResult(sa.getResult());
 447         state.storeOptionalTaskDescriptors(sa.getOptionalTaskDescriptors());
 448       }
 449
 450       if (state.WEBINTERFACE) {
 451         GarbageAnalysis ga=new GarbageAnalysis(state, ta);
 452         WebInterface wi=new WebInterface(state, ta, tg, ga, taganalysis);
 453         JhttpServer serve=new JhttpServer(8000,wi);
 454         serve.run();
 455       }
 456
 457       if (state.SCHEDULING) {
 458         // Use ownership analysis to get alias information
 459         CallGraph callGraph = new CallGraph(state);
 460         Liveness liveness = new Liveness();
 461         ArrayReferencees ar = new ArrayReferencees(state);
 462         OwnershipAnalysis oa = new OwnershipAnalysis(state,
 463                                                      tu,
 464                                                      callGraph,
 465                                                      liveness,
 466                                                      ar,
 467                                                      state.OWNERSHIPALLOCDEPTH,
 468                                                      state.OWNERSHIPWRITEDOTS,
 469                                                      state.OWNERSHIPWRITEALL,
 470                                                      state.OWNERSHIPALIASFILE);
 471
 472         // synthesis a layout according to target multicore processor
 473         MCImplSynthesis mcImplSynthesis = new MCImplSynthesis(state,
 474                                                               ta,
 475                                                               oa);
 476         if(isDistributeInfo) {
 477             mcImplSynthesis.distribution(isDisAll, startnum);
 478         } else {
 479             //double timeStartAnalysis = (double) System.nanoTime();
 480             mcImplSynthesis.setScheduleThreshold(20);
 481             mcImplSynthesis.setProbThreshold(0);
 482             mcImplSynthesis.setGenerateThreshold(30);
 483             Vector<Schedule> scheduling = mcImplSynthesis.synthesis();
 484
 485             //double timeEndAnalysis = (double) System.nanoTime();
 486             //double dt = (timeEndAnalysis - timeStartAnalysis)/(Math.pow( 10.0, 9.0 ) );
 487             //System.err.println("The analysis took" + dt +  "sec.");
 488         //System.exit(0);
 489
 490             // generate multicore codes
 491             if(state.MULTICORE) {
 492                 BuildCodeMultiCore bcm=new BuildCodeMultiCore(state,
 493                                                               bf.getMap(),
 494                                                               tu,
 495                                                               sa,
 496                                                               scheduling,
 497                                                               mcImplSynthesis.getCoreNum(),
 498                                                               pa);
 499                 bcm.setOwnershipAnalysis(oa);
 500                 bcm.buildCode();
 501             }
 502             scheduling.clear();
 503             scheduling = null;
 504         }
 505       }
 506     }
 507     if(!state.MULTICORE) {
 508       if (state.DSM||state.SINGLETM) {
 509         CallGraph callgraph=new CallGraph(state);
 510         if (state.PREFETCH) {
 511           //speed up prefetch generation using locality analysis results
 512           LocalityAnalysis la=new LocalityAnalysis(state, callgraph, tu);
 513           pa=new PrefetchAnalysis(state, callgraph, tu, la);
 514         }
 515         LocalityAnalysis la=new LocalityAnalysis(state, callgraph, tu);
 516         GenerateConversions gc=new GenerateConversions(la, state);
 517         BuildCode bc=new BuildCode(state, bf.getMap(), tu, la, pa, mlpa);
 518         bc.buildCode();
 519       } else {
 520         BuildCode bc=new BuildCode(state, bf.getMap(), tu, sa, pa, mlpa);
 521         bc.buildCode();
 522       }
 523     }
 524
 525     System.out.println("Lines="+state.lines);
 526     System.exit(0);
 527   }
 528
 529   public static void loadClass(State state, BuildIR bir, String sourcefile) {
 530     try {
 531       ParseNode pn=readSourceFile(state, sourcefile);
 532       bir.buildtree(pn, null);
 533     } catch (Exception e) {
 534       System.out.println("Error in sourcefile:"+sourcefile);
 535       e.printStackTrace();
 536       System.exit(-1);
 537     } catch (Error e) {
 538       System.out.println("Error in sourcefile:"+sourcefile);
 539       e.printStackTrace();
 540       System.exit(-1);
 541     }
 542   }
 543
 544   /** Reads in a source file and adds the parse tree to the state object. */
 545
 546   public static ParseNode readSourceFile(State state, String sourcefile) {
 547     try {
 548       Reader fr= new BufferedReader(new FileReader(sourcefile));
 549       Lex.Lexer l = new Lex.Lexer(fr);
 550       java_cup.runtime.lr_parser g;
 551       g = new Parse.Parser(l);
 552       ParseNode p=null;
 553       try {
 554         p=(ParseNode) g./*debug_*/parse().value;
 555       } catch (Exception e) {
 556         System.err.println("Error parsing file:"+sourcefile);
 557         e.printStackTrace();
 558         System.exit(-1);
 559       }
 560       state.addParseNode(p);
 561       if (l.numErrors()!=0) {
 562         System.out.println("Error parsing "+sourcefile);
 563         System.exit(l.numErrors());
 564       }
 565       state.lines+=l.line_num;
 566       return p;
 567
 568     } catch (Exception e) {
 569       throw new Error(e);
 570     }
 571   }
 572 }