Robust/src/IR/Flat/BuildCode.java

   1 package IR.Flat;
   2 import IR.Tree.FlagExpressionNode;
   3 import IR.Tree.DNFFlag;
   4 import IR.Tree.DNFFlagAtom;
   5 import IR.Tree.TagExpressionList;
   6 import IR.*;
   7 import java.util.*;
   8 import java.io.*;
   9
  10 import Util.Relation;
  11 import Analysis.TaskStateAnalysis.FlagState;
  12 import Analysis.TaskStateAnalysis.FlagComparator;
  13 import Analysis.TaskStateAnalysis.OptionalTaskDescriptor;
  14 import Analysis.TaskStateAnalysis.Predicate;
  15 import Analysis.TaskStateAnalysis.SafetyAnalysis;
  16 import Analysis.TaskStateAnalysis.TaskIndex;
  17 import Analysis.Locality.LocalityAnalysis;
  18 import Analysis.Locality.LocalityBinding;
  19 import Analysis.Prefetch.*;
  20
  21 public class BuildCode {
  22     State state;
  23     Hashtable temptovar;
  24     Hashtable paramstable;
  25     Hashtable tempstable;
  26     Hashtable fieldorder;
  27     Hashtable flagorder;
  28     int tag=0;
  29     String localsprefix="___locals___";
  30     String paramsprefix="___params___";
  31     String oidstr="___nextobject___";
  32     String nextobjstr="___nextobject___";
  33     String localcopystr="___localcopy___";
  34     public static boolean GENERATEPRECISEGC=false;
  35     public static String PREFIX="";
  36     public static String arraytype="ArrayObject";
  37     public static int flagcount = 0;
  38     Virtual virtualcalls;
  39     TypeUtil typeutil;
  40     protected int maxtaskparams=0;
  41     private int maxcount=0;
  42     ClassDescriptor[] cdarray;
  43     TypeDescriptor[] arraytable;
  44     LocalityAnalysis locality;
  45     Hashtable<TempDescriptor, TempDescriptor> backuptable;
  46     Hashtable<LocalityBinding, TempDescriptor> reverttable;
  47     SafetyAnalysis sa;
  48     PrefetchAnalysis pa;
  49
  50     public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa, PrefetchAnalysis pa) {
  51         this(st, temptovar, typeutil, null, sa, pa);
  52     }
  53
  54     public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality, PrefetchAnalysis pa) {
  55         this(st, temptovar, typeutil, locality, null, pa);
  56     }
  57
  58     public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality, SafetyAnalysis sa, PrefetchAnalysis pa) {
  59         this.sa=sa;
  60         this.pa=pa;
  61         state=st;
  62         this.temptovar=temptovar;
  63         paramstable=new Hashtable();
  64         tempstable=new Hashtable();
  65         fieldorder=new Hashtable();
  66         flagorder=new Hashtable();
  67         this.typeutil=typeutil;
  68         virtualcalls=new Virtual(state,locality);
  69         if (locality!=null) {
  70             this.locality=locality;
  71             this.backuptable=new Hashtable<TempDescriptor, TempDescriptor>();
  72             this.reverttable=new Hashtable<LocalityBinding, TempDescriptor>();
  73         }
  74     }
  75
  76     /** The buildCode method outputs C code for all the methods.  The Flat
  77      * versions of the methods must already be generated and stored in
  78      * the State object. */
  79
  80     public void buildCode() {
  81         /* Create output streams to write to */
  82         PrintWriter outclassdefs=null;
  83         PrintWriter outstructs=null;
  84         PrintWriter outrepairstructs=null;
  85         PrintWriter outmethodheader=null;
  86         PrintWriter outmethod=null;
  87         PrintWriter outvirtual=null;
  88         PrintWriter outtask=null;
  89         PrintWriter outtaskdefs=null;
  90         PrintWriter outoptionalarrays=null;
  91         PrintWriter optionalheaders=null;
  92
  93         try {
  94             outstructs=new PrintWriter(new FileOutputStream(PREFIX+"structdefs.h"), true);
  95             outmethodheader=new PrintWriter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
  96             outclassdefs=new PrintWriter(new FileOutputStream(PREFIX+"classdefs.h"), true);
  97             outmethod=new PrintWriter(new FileOutputStream(PREFIX+"methods.c"), true);
  98             outvirtual=new PrintWriter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
  99             if (state.TASK) {
 100                 outtask=new PrintWriter(new FileOutputStream(PREFIX+"task.h"), true);
 101                 outtaskdefs=new PrintWriter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
 102                 if (state.OPTIONAL){
 103                     outoptionalarrays=new PrintWriter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
 104                     optionalheaders=new PrintWriter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
 105                 }
 106             }
 107             if (state.structfile!=null) {
 108                 outrepairstructs=new PrintWriter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
 109             }
 110         } catch (Exception e) {
 111             e.printStackTrace();
 112             System.exit(-1);
 113         }
 114
 115         /* Build the virtual dispatch tables */
 116         buildVirtualTables(outvirtual);
 117
 118         /* Output includes */
 119         outmethodheader.println("#ifndef METHODHEADERS_H");
 120         outmethodheader.println("#define METHODHEADERS_H");
 121         outmethodheader.println("#include \"structdefs.h\"");
 122         if (state.DSM)
 123             outmethodheader.println("#include \"dstm.h\"");
 124
 125         /* Output Structures */
 126         outputStructs(outstructs);
 127
 128         // Output the C class declarations
 129         // These could mutually reference each other
 130         outputClassDeclarations(outclassdefs);
 131
 132         // Output function prototypes and structures for parameters
 133         Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
 134         while(it.hasNext()) {
 135             ClassDescriptor cn=(ClassDescriptor)it.next();
 136             generateCallStructs(cn, outclassdefs, outstructs, outmethodheader);
 137         }
 138         outclassdefs.close();
 139
 140         if (state.TASK) {
 141             /* Map flags to integers */
 142             /* The runtime keeps track of flags using these integers */
 143             it=state.getClassSymbolTable().getDescriptorsIterator();
 144             while(it.hasNext()) {
 145                 ClassDescriptor cn=(ClassDescriptor)it.next();
 146                 mapFlags(cn);
 147             }
 148             /* Generate Tasks */
 149             generateTaskStructs(outstructs, outmethodheader);
 150
 151             /* Outputs generic task structures if this is a task
 152                program */
 153             outputTaskTypes(outtask);
 154         }
 155
 156         /* Build the actual methods */
 157         outputMethods(outmethod);
 158
 159         if (state.TASK) {
 160             /* Output code for tasks */
 161             outputTaskCode(outtaskdefs, outmethod);
 162             outtaskdefs.close();
 163             /* Record maximum number of task parameters */
 164             outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
 165         } else if (state.main!=null) {
 166             /* Generate main method */
 167             outputMainMethod(outmethod);
 168         }
 169
 170         /* Generate information for task with optional parameters */
 171         if (state.TASK&&state.OPTIONAL){
 172             generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
 173             outoptionalarrays.close();
 174         }
 175
 176         /* Output structure definitions for repair tool */
 177         if (state.structfile!=null) {
 178             buildRepairStructs(outrepairstructs);
 179             outrepairstructs.close();
 180         }
 181
 182         /* Close files */
 183         outmethodheader.println("#endif");
 184         outmethodheader.close();
 185         outmethod.close();
 186         outstructs.println("#endif");
 187         outstructs.close();
 188     }
 189
 190     /* This code just generates the main C method for java programs.
 191      * The main C method packs up the arguments into a string array
 192      * and passes it to the java main method. */
 193
 194     private void outputMainMethod(PrintWriter outmethod) {
 195         outmethod.println("int main(int argc, const char *argv[]) {");
 196         outmethod.println("  int i;");
 197     outmethod.println("#ifdef TRANSSTATS \n");
 198     outmethod.println("handle();\n");
 199     outmethod.println("#endif\n");
 200         if (state.THREAD||state.DSM) {
 201             outmethod.println("initializethreads();");
 202         }
 203         if (state.DSM) {
 204             outmethod.println("if (dstmStartup(argv[1])) {");
 205             if (GENERATEPRECISEGC) {
 206                 outmethod.println("  struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-2);");
 207             } else {
 208                 outmethod.println("  struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-2);");
 209             }
 210         } else {
 211             if (GENERATEPRECISEGC) {
 212                 outmethod.println("  struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
 213             } else {
 214                 outmethod.println("  struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
 215             }
 216         }
 217         if (state.DSM) {
 218             outmethod.println("  for(i=2;i<argc;i++) {");
 219         } else
 220             outmethod.println("  for(i=1;i<argc;i++) {");
 221         outmethod.println("    int length=strlen(argv[i]);");
 222         if (GENERATEPRECISEGC) {
 223             outmethod.println("    struct ___String___ *newstring=NewString(NULL, argv[i], length);");
 224         } else {
 225             outmethod.println("    struct ___String___ *newstring=NewString(argv[i], length);");
 226         }
 227         if (state.DSM)
 228             outmethod.println("    ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-2]=newstring;");
 229         else
 230             outmethod.println("    ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
 231         outmethod.println("  }");
 232
 233
 234         MethodDescriptor md=typeutil.getMain();
 235         ClassDescriptor cd=typeutil.getMainClass();
 236
 237         outmethod.println("   {");
 238         if (GENERATEPRECISEGC) {
 239             if (state.DSM) {
 240                 outmethod.print("       struct "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
 241             } else
 242                 outmethod.print("       struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
 243             outmethod.println("1, NULL,"+"stringarray};");
 244             if (state.DSM)
 245                 outmethod.println("     "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
 246             else
 247                 outmethod.println("     "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
 248         } else {
 249             if (state.DSM)
 250                 outmethod.println("     "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
 251             else
 252                 outmethod.println("     "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
 253         }
 254         outmethod.println("   }");
 255
 256         if (state.DSM) {
 257             outmethod.println("}");
 258         }
 259
 260         if (state.THREAD||state.DSM) {
 261             outmethod.println("pthread_mutex_lock(&gclistlock);");
 262             outmethod.println("threadcount--;");
 263             outmethod.println("pthread_cond_signal(&gccond);");
 264             outmethod.println("pthread_mutex_unlock(&gclistlock);");
 265             if (state.THREAD)
 266                 outmethod.println("pthread_exit(NULL);");
 267         }
 268
 269     outmethod.println("#ifdef TRANSSTATS \n");
 270     outmethod.println("printf(\"******  Transaction Stats   ******\\n\");");
 271     outmethod.println("printf(\"numTransAbort= %d\\n\", numTransAbort);");
 272     outmethod.println("printf(\"numTransCommit= %d\\n\", numTransCommit);");
 273     outmethod.println("printf(\"nchashSearch= %d\\n\", nchashSearch);");
 274     outmethod.println("printf(\"nmhashSearch= %d\\n\", nmhashSearch);");
 275     outmethod.println("printf(\"nprehashSearch= %d\\n\", nprehashSearch);");
 276     outmethod.println("printf(\"nRemoteReadSend= %d\\n\", nRemoteSend);");
 277     outmethod.println("#endif\n");
 278         outmethod.println("}");
 279
 280     }
 281
 282     /* This method outputs code for each task. */
 283
 284     private void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
 285         /* Compile task based program */
 286         outtaskdefs.println("#include \"task.h\"");
 287         outtaskdefs.println("#include \"methodheaders.h\"");
 288         Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
 289         while(taskit.hasNext()) {
 290             TaskDescriptor td=(TaskDescriptor)taskit.next();
 291             FlatMethod fm=state.getMethodFlat(td);
 292             generateFlatMethod(fm, null, outmethod);
 293             generateTaskDescriptor(outtaskdefs, fm, td);
 294         }
 295
 296         //Output task descriptors
 297         taskit=state.getTaskSymbolTable().getDescriptorsIterator();
 298         outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
 299         boolean first=true;
 300         while(taskit.hasNext()) {
 301             TaskDescriptor td=(TaskDescriptor)taskit.next();
 302             if (first)
 303                 first=false;
 304             else
 305                 outtaskdefs.println(",");
 306             outtaskdefs.print("&task_"+td.getSafeSymbol());
 307         }
 308         outtaskdefs.println("};");
 309
 310         outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
 311     }
 312
 313     /* This method outputs most of the methods.c file.  This includes
 314      * some standard includes and then an array with the sizes of
 315      * objets and array that stores supertype and then the code for
 316      * the Java methods.. */
 317
 318     protected void outputMethods(PrintWriter outmethod) {
 319         outmethod.println("#include \"methodheaders.h\"");
 320         outmethod.println("#include \"virtualtable.h\"");
 321         outmethod.println("#include \"runtime.h\"");
 322         if (state.DSM) {
 323             outmethod.println("#include \"addPrefetchEnhance.h\"");
 324             outmethod.println("#include \"localobjects.h\"");
 325         }
 326         if(state.MULTICORE) {
 327             outmethod.println("#include \"task.h\"");
 328         }
 329         if (state.THREAD||state.DSM)
 330             outmethod.println("#include <thread.h>");
 331         if (state.main!=null) {
 332             outmethod.println("#include <string.h>");
 333         }
 334         if (state.CONSCHECK) {
 335             outmethod.println("#include \"checkers.h\"");
 336         }
 337         //Store the sizes of classes & array elements
 338         generateSizeArray(outmethod);
 339
 340         //Store table of supertypes
 341         generateSuperTypeTable(outmethod);
 342
 343         //Store the layout of classes
 344         generateLayoutStructs(outmethod);
 345
 346         /* Generate code for methods */
 347         if (state.DSM) {
 348             for(Iterator<LocalityBinding> lbit=locality.getLocalityBindings().iterator();lbit.hasNext();) {
 349                 LocalityBinding lb=lbit.next();
 350                 MethodDescriptor md=lb.getMethod();
 351                 FlatMethod fm=state.getMethodFlat(md);
 352                 if (!md.getModifiers().isNative()) {
 353                     System.out.println("***"+fm);
 354                         generateFlatMethod(fm, lb, outmethod);
 355                 }
 356             }
 357         } else {
 358             Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
 359             while(classit.hasNext()) {
 360                 ClassDescriptor cn=(ClassDescriptor)classit.next();
 361                 Iterator methodit=cn.getMethods();
 362                 while(methodit.hasNext()) {
 363                     /* Classify parameters */
 364                     MethodDescriptor md=(MethodDescriptor)methodit.next();
 365                     FlatMethod fm=state.getMethodFlat(md);
 366                     if (!md.getModifiers().isNative()) {
 367                         generateFlatMethod(fm, null, outmethod);
 368                     }
 369                 }
 370             }
 371         }
 372     }
 373
 374     protected void outputStructs(PrintWriter outstructs) {
 375         outstructs.println("#ifndef STRUCTDEFS_H");
 376         outstructs.println("#define STRUCTDEFS_H");
 377         outstructs.println("#include \"classdefs.h\"");
 378
 379         /* Output #defines that the runtime uses to determine type
 380          * numbers for various objects it needs */
 381         outstructs.println("#define MAXCOUNT "+maxcount);
 382         if (state.DSM) {
 383             LocalityBinding lb=new LocalityBinding(typeutil.getRun(), false);
 384             lb.setGlobalThis(LocalityAnalysis.GLOBAL);
 385             outstructs.println("#define RUNMETHOD "+virtualcalls.getLocalityNumber(lb));
 386         }
 387
 388         outstructs.println("#define STRINGARRAYTYPE "+
 389                            (state.getArrayNumber(
 390                                                  (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
 391
 392         outstructs.println("#define OBJECTARRAYTYPE "+
 393                            (state.getArrayNumber(
 394                                                  (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
 395
 396
 397         outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
 398         outstructs.println("#define CHARARRAYTYPE "+
 399                            (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
 400
 401         outstructs.println("#define BYTEARRAYTYPE "+
 402                            (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
 403
 404         outstructs.println("#define BYTEARRAYARRAYTYPE "+
 405                            (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
 406
 407         outstructs.println("#define NUMCLASSES "+state.numClasses());
 408         if (state.TASK) {
 409             outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
 410             outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
 411             outstructs.println("#define TAGARRAYTYPE "+
 412                                (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
 413         }
 414     }
 415
 416     protected void outputClassDeclarations(PrintWriter outclassdefs) {
 417         if (state.THREAD||state.DSM)
 418             outclassdefs.println("#include <pthread.h>");
 419         if(state.OPTIONAL)
 420             outclassdefs.println("#include \"optionalstruct.h\"");
 421         outclassdefs.println("struct "+arraytype+";");
 422         /* Start by declaring all structs */
 423         Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
 424         while(it.hasNext()) {
 425             ClassDescriptor cn=(ClassDescriptor)it.next();
 426             outclassdefs.println("struct "+cn.getSafeSymbol()+";");
 427         }
 428         outclassdefs.println("");
 429         //Print out definition for array type
 430         outclassdefs.println("struct "+arraytype+" {");
 431         outclassdefs.println("  int type;");
 432         if (state.THREAD) {
 433             outclassdefs.println("  pthread_t tid;");
 434             outclassdefs.println("  void * lockentry;");
 435             outclassdefs.println("  int lockcount;");
 436         }
 437         if (state.TASK) {
 438             outclassdefs.println("  int flag;");
 439             if(!state.MULTICORE) {
 440                 outclassdefs.println("  void * flagptr;");
 441             } else {
 442                 outclassdefs.println("  int isolate;"); // indicate if this object is shared or not
 443                 outclassdefs.println("  int version;");
 444                 outclassdefs.println("  struct ___Object___ * original;");
 445             }
 446             if(state.OPTIONAL){
 447                 outclassdefs.println("  int numfses;");
 448                 outclassdefs.println("  int * fses;");
 449             }
 450         }
 451         printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs);
 452
 453         outclassdefs.println("  int ___length___;");
 454         outclassdefs.println("};\n");
 455         outclassdefs.println("extern int classsize[];");
 456         outclassdefs.println("extern int hasflags[];");
 457         outclassdefs.println("extern unsigned int * pointerarray[];");
 458         outclassdefs.println("extern int supertypes[];");
 459     }
 460
 461     /** Prints out definitions for generic task structures */
 462
 463     private void outputTaskTypes(PrintWriter outtask) {
 464         outtask.println("#ifndef _TASK_H");
 465         outtask.println("#define _TASK_H");
 466         outtask.println("struct parameterdescriptor {");
 467         outtask.println("int type;");
 468         outtask.println("int numberterms;");
 469         outtask.println("int *intarray;");
 470         outtask.println("void * queue;");
 471         outtask.println("int numbertags;");
 472         outtask.println("int *tagarray;");
 473         outtask.println("};");
 474
 475         outtask.println("struct taskdescriptor {");
 476         outtask.println("void * taskptr;");
 477         outtask.println("int numParameters;");
 478         outtask.println("  int numTotal;");
 479         outtask.println("struct parameterdescriptor **descriptorarray;");
 480         outtask.println("char * name;");
 481         outtask.println("};");
 482         outtask.println("extern struct taskdescriptor * taskarray[];");
 483         outtask.println("extern numtasks;");
 484         outtask.println("#endif");
 485     }
 486
 487
 488     private void buildRepairStructs(PrintWriter outrepairstructs) {
 489         Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
 490         while(classit.hasNext()) {
 491             ClassDescriptor cn=(ClassDescriptor)classit.next();
 492             outrepairstructs.println("structure "+cn.getSymbol()+" {");
 493             outrepairstructs.println("  int __type__;");
 494             if (state.TASK) {
 495                 outrepairstructs.println("  int __flag__;");
 496                 if(!state.MULTICORE) {
 497                     outrepairstructs.println("  int __flagptr__;");
 498                 }
 499             }
 500             printRepairStruct(cn, outrepairstructs);
 501             outrepairstructs.println("}\n");
 502         }
 503
 504         for(int i=0;i<state.numArrays();i++) {
 505             TypeDescriptor tdarray=arraytable[i];
 506             TypeDescriptor tdelement=tdarray.dereference();
 507             outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
 508             outrepairstructs.println("  int __type__;");
 509             printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
 510             outrepairstructs.println("  int length;");
 511             /*
 512               // Need to add support to repair tool for this
 513               if (tdelement.isClass()||tdelement.isArray())
 514                 outrepairstructs.println("  "+tdelement.getRepairSymbol()+" * elem[this.length];");
 515             else
 516                 outrepairstructs.println("  "+tdelement.getRepairSymbol()+" elem[this.length];");
 517             */
 518             outrepairstructs.println("}\n");
 519         }
 520     }
 521
 522     private void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
 523         ClassDescriptor sp=cn.getSuperDesc();
 524         if (sp!=null)
 525             printRepairStruct(sp, output);
 526
 527         Vector fields=(Vector)fieldorder.get(cn);
 528
 529         for(int i=0;i<fields.size();i++) {
 530             FieldDescriptor fd=(FieldDescriptor)fields.get(i);
 531             if (fd.getType().isArray()) {
 532                 output.println("  "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
 533             } else if (fd.getType().isClass())
 534                 output.println("  "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
 535             else if (fd.getType().isFloat())
 536                 output.println("  int "+fd.getSymbol()+"; /* really float */");
 537             else
 538                 output.println("  "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
 539         }
 540     }
 541
 542     /** This method outputs TaskDescriptor information */
 543     private void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
 544         for (int i=0;i<task.numParameters();i++) {
 545             VarDescriptor param_var=task.getParameter(i);
 546             TypeDescriptor param_type=task.getParamType(i);
 547             FlagExpressionNode param_flag=task.getFlag(param_var);
 548             TagExpressionList param_tag=task.getTag(param_var);
 549
 550             int dnfterms;
 551             if (param_flag==null) {
 552                 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
 553                 output.println("0x0, 0x0 };");
 554                 dnfterms=1;
 555             } else {
 556                 DNFFlag dflag=param_flag.getDNF();
 557                 dnfterms=dflag.size();
 558
 559                 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
 560                 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
 561                 for(int j=0;j<dflag.size();j++) {
 562                     if (j!=0)
 563                         output.println(",");
 564                     Vector term=dflag.get(j);
 565                     int andmask=0;
 566                     int checkmask=0;
 567                     for(int k=0;k<term.size();k++) {
 568                         DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
 569                         FlagDescriptor fd=dfa.getFlag();
 570                         boolean negated=dfa.getNegated();
 571                         int flagid=1<<((Integer)flags.get(fd)).intValue();
 572                         andmask|=flagid;
 573                         if (!negated)
 574                             checkmask|=flagid;
 575                     }
 576                     output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
 577                 }
 578                 output.println("};");
 579             }
 580
 581             output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
 582             //BUG...added next line to fix, test with any task program
 583             if (param_tag!=null)
 584                 for(int j=0;j<param_tag.numTags();j++) {
 585                     if (j!=0)
 586                         output.println(",");
 587                     /* for each tag we need */
 588                     /* which slot it is */
 589                     /* what type it is */
 590                     TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
 591                     TempDescriptor tmp=param_tag.getTemp(j);
 592                     int slot=fm.getTagInt(tmp);
 593                     output.println(slot+", "+state.getTagId(tvd.getTag()));
 594                 }
 595             output.println("};");
 596
 597             output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
 598             output.println("/* type */"+param_type.getClassDesc().getId()+",");
 599             output.println("/* number of DNF terms */"+dnfterms+",");
 600             output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
 601             output.println("0,");
 602             //BUG, added next line to fix and else statement...test
 603             //with any task program
 604             if (param_tag!=null)
 605                 output.println("/* number of tags */"+param_tag.numTags()+",");
 606             else
 607                 output.println("/* number of tags */ 0,");
 608             output.println("parametertag_"+i+"_"+task.getSafeSymbol());
 609             output.println("};");
 610         }
 611
 612
 613         output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
 614         for (int i=0;i<task.numParameters();i++) {
 615             if (i!=0)
 616                 output.println(",");
 617             output.print("&parameter_"+i+"_"+task.getSafeSymbol());
 618         }
 619         output.println("};");
 620
 621         output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
 622         output.println("&"+task.getSafeSymbol()+",");
 623         output.println("/* number of parameters */" +task.numParameters() + ",");
 624         int numtotal=task.numParameters()+fm.numTags();
 625         output.println("/* number total parameters */" +numtotal + ",");
 626         output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
 627         output.println("\""+task.getSymbol()+"\"");
 628         output.println("};");
 629     }
 630
 631
 632     /** The buildVirtualTables method outputs the virtual dispatch
 633      * tables for methods. */
 634
 635     protected void buildVirtualTables(PrintWriter outvirtual) {
 636         Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
 637         while(classit.hasNext()) {
 638             ClassDescriptor cd=(ClassDescriptor)classit.next();
 639             if (virtualcalls.getMethodCount(cd)>maxcount)
 640                 maxcount=virtualcalls.getMethodCount(cd);
 641         }
 642         MethodDescriptor[][] virtualtable=null;
 643         LocalityBinding[][] lbvirtualtable=null;
 644         if (state.DSM)
 645             lbvirtualtable=new LocalityBinding[state.numClasses()+state.numArrays()][maxcount];
 646         else
 647             virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
 648
 649         /* Fill in virtual table */
 650         classit=state.getClassSymbolTable().getDescriptorsIterator();
 651         while(classit.hasNext()) {
 652             ClassDescriptor cd=(ClassDescriptor)classit.next();
 653             if (state.DSM)
 654                 fillinRow(cd, lbvirtualtable, cd.getId());
 655             else
 656                 fillinRow(cd, virtualtable, cd.getId());
 657         }
 658
 659         ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
 660         Iterator arrayit=state.getArrayIterator();
 661         while(arrayit.hasNext()) {
 662             TypeDescriptor td=(TypeDescriptor)arrayit.next();
 663             int id=state.getArrayNumber(td);
 664             if (state.DSM)
 665                 fillinRow(objectcd, lbvirtualtable, id+state.numClasses());
 666             else
 667                 fillinRow(objectcd, virtualtable, id+state.numClasses());
 668         }
 669
 670         outvirtual.print("void * virtualtable[]={");
 671         boolean needcomma=false;
 672         for(int i=0;i<state.numClasses()+state.numArrays();i++) {
 673             for(int j=0;j<maxcount;j++) {
 674                 if (needcomma)
 675                     outvirtual.print(", ");
 676                 if (state.DSM&&lbvirtualtable[i][j]!=null) {
 677                     LocalityBinding lb=lbvirtualtable[i][j];
 678                     MethodDescriptor md=lb.getMethod();
 679                     outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
 680                 } else if (!state.DSM&&virtualtable[i][j]!=null) {
 681                     MethodDescriptor md=virtualtable[i][j];
 682                     outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
 683                 } else {
 684                     outvirtual.print("0");
 685                 }
 686                 needcomma=true;
 687             }
 688             outvirtual.println("");
 689         }
 690         outvirtual.println("};");
 691         outvirtual.close();
 692     }
 693
 694     private void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
 695         /* Get inherited methods */
 696         if (cd.getSuperDesc()!=null)
 697             fillinRow(cd.getSuperDesc(), virtualtable, rownum);
 698         /* Override them with our methods */
 699         for(Iterator it=cd.getMethods();it.hasNext();) {
 700             MethodDescriptor md=(MethodDescriptor)it.next();
 701             if (md.isStatic()||md.getReturnType()==null)
 702                 continue;
 703             int methodnum=virtualcalls.getMethodNumber(md);
 704             virtualtable[rownum][methodnum]=md;
 705         }
 706     }
 707
 708     private void fillinRow(ClassDescriptor cd, LocalityBinding[][] virtualtable, int rownum) {
 709         /* Get inherited methods */
 710         if (cd.getSuperDesc()!=null)
 711             fillinRow(cd.getSuperDesc(), virtualtable, rownum);
 712         /* Override them with our methods */
 713         if (locality.getClassBindings(cd)!=null)
 714             for(Iterator<LocalityBinding> lbit=locality.getClassBindings(cd).iterator();lbit.hasNext();) {
 715                 LocalityBinding lb=lbit.next();
 716                 MethodDescriptor md=lb.getMethod();
 717                 //Is the method static or a constructor
 718                 if (md.isStatic()||md.getReturnType()==null)
 719                     continue;
 720                 int methodnum=virtualcalls.getLocalityNumber(lb);
 721                 virtualtable[rownum][methodnum]=lb;
 722             }
 723     }
 724
 725
 726     /** Generate array that contains the sizes of class objects.  The
 727      * object allocation functions in the runtime use this
 728      * information. */
 729
 730     private void generateSizeArray(PrintWriter outclassdefs) {
 731       outclassdefs.print("extern struct prefetchCountStats * evalPrefetch;\n");
 732       outclassdefs.print("#ifdef TRANSSTATS \n");
 733       outclassdefs.print("extern int numTransAbort;\n");
 734       outclassdefs.print("extern int numTransCommit;\n");
 735       outclassdefs.print("extern int nchashSearch;\n");
 736       outclassdefs.print("extern int nmhashSearch;\n");
 737       outclassdefs.print("extern int nprehashSearch;\n");
 738       outclassdefs.print("extern int nRemoteSend;\n");
 739       outclassdefs.print("extern void handle();\n");
 740       outclassdefs.print("#endif\n");
 741       outclassdefs.print("int numprefetchsites = " + pa.prefetchsiteid + ";\n");
 742
 743       outclassdefs.print("int classsize[]={");
 744         Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
 745         cdarray=new ClassDescriptor[state.numClasses()];
 746         while(it.hasNext()) {
 747             ClassDescriptor cd=(ClassDescriptor)it.next();
 748             cdarray[cd.getId()]=cd;
 749         }
 750         boolean needcomma=false;
 751         for(int i=0;i<state.numClasses();i++) {
 752             if (needcomma)
 753                 outclassdefs.print(", ");
 754             outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
 755             needcomma=true;
 756         }
 757
 758         arraytable=new TypeDescriptor[state.numArrays()];
 759
 760         Iterator arrayit=state.getArrayIterator();
 761         while(arrayit.hasNext()) {
 762             TypeDescriptor td=(TypeDescriptor)arrayit.next();
 763             int id=state.getArrayNumber(td);
 764             arraytable[id]=td;
 765         }
 766
 767         for(int i=0;i<state.numArrays();i++) {
 768             if (needcomma)
 769                 outclassdefs.print(", ");
 770             TypeDescriptor tdelement=arraytable[i].dereference();
 771             if (tdelement.isArray()||tdelement.isClass())
 772                 outclassdefs.print("sizeof(void *)");
 773             else
 774                 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
 775             needcomma=true;
 776         }
 777
 778         outclassdefs.println("};");
 779     }
 780
 781     /** Constructs params and temp objects for each method or task.
 782      * These objects tell the compiler which temps need to be
 783      * allocated.  */
 784
 785     protected void generateTempStructs(FlatMethod fm, LocalityBinding lb) {
 786         MethodDescriptor md=fm.getMethod();
 787         TaskDescriptor task=fm.getTask();
 788         Set<TempDescriptor> saveset=lb!=null?locality.getTempSet(lb):null;
 789         ParamsObject objectparams=md!=null?new ParamsObject(md,tag++):new ParamsObject(task, tag++);
 790
 791         if (lb!=null)
 792             paramstable.put(lb, objectparams);
 793         else if (md!=null)
 794             paramstable.put(md, objectparams);
 795         else
 796             paramstable.put(task, objectparams);
 797
 798         for(int i=0;i<fm.numParameters();i++) {
 799             TempDescriptor temp=fm.getParameter(i);
 800             TypeDescriptor type=temp.getType();
 801             if (type.isPtr()&&GENERATEPRECISEGC)
 802                 objectparams.addPtr(temp);
 803             else
 804                 objectparams.addPrim(temp);
 805             if(lb!=null&&saveset.contains(temp)) {
 806                 backuptable.put(temp, temp.createNew());
 807             }
 808         }
 809
 810         for(int i=0;i<fm.numTags();i++) {
 811             TempDescriptor temp=fm.getTag(i);
 812             if (GENERATEPRECISEGC)
 813                 objectparams.addPtr(temp);
 814             else
 815                 objectparams.addPrim(temp);
 816         }
 817
 818         TempObject objecttemps=md!=null?new TempObject(objectparams,md,tag++):new TempObject(objectparams, task, tag++);
 819         if (lb!=null)
 820             tempstable.put(lb, objecttemps);
 821         else if (md!=null)
 822             tempstable.put(md, objecttemps);
 823         else
 824             tempstable.put(task, objecttemps);
 825
 826         for(Iterator nodeit=fm.getNodeSet().iterator();nodeit.hasNext();) {
 827             FlatNode fn=(FlatNode)nodeit.next();
 828             TempDescriptor[] writes=fn.writesTemps();
 829             for(int i=0;i<writes.length;i++) {
 830                 TempDescriptor temp=writes[i];
 831                 TypeDescriptor type=temp.getType();
 832                 if (type.isPtr()&&GENERATEPRECISEGC)
 833                     objecttemps.addPtr(temp);
 834                 else
 835                     objecttemps.addPrim(temp);
 836                 if(lb!=null&&saveset.contains(temp)&&
 837                    !backuptable.containsKey(temp))
 838                     backuptable.put(temp, temp.createNew());
 839             }
 840         }
 841
 842         /* Create backup temps */
 843         if (lb!=null) {
 844             for(Iterator<TempDescriptor> tmpit=backuptable.values().iterator();tmpit.hasNext();) {
 845                 TempDescriptor tmp=tmpit.next();
 846                 TypeDescriptor type=tmp.getType();
 847                 if (type.isPtr()&&GENERATEPRECISEGC)
 848                     objecttemps.addPtr(tmp);
 849                 else
 850                     objecttemps.addPrim(tmp);
 851             }
 852             /* Create temp to hold revert table */
 853             if (lb.getHasAtomic()||lb.isAtomic()) {
 854                 TempDescriptor reverttmp=new TempDescriptor("revertlist", typeutil.getClass(TypeUtil.ObjectClass));
 855                 if (GENERATEPRECISEGC)
 856                     objecttemps.addPtr(reverttmp);
 857                 else
 858                     objecttemps.addPrim(reverttmp);
 859                 reverttable.put(lb, reverttmp);
 860             }
 861         }
 862     }
 863
 864     /** This method outputs the following information about classes
 865      * and arrays:
 866      * (1) For classes, what are the locations of pointers.
 867      * (2) For arrays, does the array contain pointers or primitives.
 868      * (3) For classes, does the class contain flags.
 869      */
 870
 871     private void generateLayoutStructs(PrintWriter output) {
 872         Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
 873         while(it.hasNext()) {
 874             ClassDescriptor cn=(ClassDescriptor)it.next();
 875             output.println("unsigned int "+cn.getSafeSymbol()+"_pointers[]={");
 876             Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
 877             int count=0;
 878             while(allit.hasNext()) {
 879                 FieldDescriptor fd=(FieldDescriptor)allit.next();
 880                 TypeDescriptor type=fd.getType();
 881                 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
 882                     continue;
 883                 if (type.isPtr())
 884                     count++;
 885             }
 886             output.print(count);
 887             allit=cn.getFieldTable().getAllDescriptorsIterator();
 888             while(allit.hasNext()) {
 889                 FieldDescriptor fd=(FieldDescriptor)allit.next();
 890                 TypeDescriptor type=fd.getType();
 891                 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
 892                     continue;
 893                 if (type.isPtr()) {
 894                     output.println(",");
 895                     output.print("((unsigned int)&(((struct "+cn.getSafeSymbol() +" *)0)->"+fd.getSafeSymbol()+"))");
 896                 }
 897             }
 898             output.println("};");
 899         }
 900         output.println("unsigned int * pointerarray[]={");
 901         boolean needcomma=false;
 902         for(int i=0;i<state.numClasses();i++) {
 903             ClassDescriptor cn=cdarray[i];
 904             if (needcomma)
 905                 output.println(",");
 906             needcomma=true;
 907             output.print(cn.getSafeSymbol()+"_pointers");
 908         }
 909
 910         for(int i=0;i<state.numArrays();i++) {
 911             if (needcomma)
 912                 output.println(", ");
 913             TypeDescriptor tdelement=arraytable[i].dereference();
 914             if (tdelement.isArray()||tdelement.isClass())
 915                 output.print("((unsigned int *)1)");
 916             else
 917                 output.print("0");
 918             needcomma=true;
 919         }
 920
 921         output.println("};");
 922         needcomma=false;
 923         output.println("int hasflags[]={");
 924         for(int i=0;i<state.numClasses();i++) {
 925             ClassDescriptor cn=cdarray[i];
 926             if (needcomma)
 927                 output.println(", ");
 928             needcomma=true;
 929             if (cn.hasFlags())
 930                 output.print("1");
 931             else
 932                 output.print("0");
 933         }
 934         output.println("};");
 935     }
 936
 937     /** Print out table to give us supertypes */
 938     private void generateSuperTypeTable(PrintWriter output) {
 939         output.println("int supertypes[]={");
 940         boolean needcomma=false;
 941         for(int i=0;i<state.numClasses();i++) {
 942             ClassDescriptor cn=cdarray[i];
 943             if (needcomma)
 944                 output.println(",");
 945             needcomma=true;
 946             if (cn.getSuperDesc()!=null) {
 947                 ClassDescriptor cdsuper=cn.getSuperDesc();
 948                 output.print(cdsuper.getId());
 949             } else
 950                 output.print("-1");
 951         }
 952         output.println("};");
 953     }
 954
 955     /** Force consistent field ordering between inherited classes. */
 956
 957     private void printClassStruct(ClassDescriptor cn, PrintWriter classdefout) {
 958
 959         ClassDescriptor sp=cn.getSuperDesc();
 960         if (sp!=null)
 961             printClassStruct(sp, classdefout);
 962
 963         if (!fieldorder.containsKey(cn)) {
 964             Vector fields=new Vector();
 965             fieldorder.put(cn,fields);
 966             if (sp==null&&!state.TASK) {
 967                 fields.add(cn.getFieldTable().get("cachedCode"));
 968             }
 969             Iterator fieldit=cn.getFields();
 970             while(fieldit.hasNext()) {
 971                 FieldDescriptor fd=(FieldDescriptor)fieldit.next();
 972                 if ((sp==null||!sp.getFieldTable().contains(fd.getSymbol()))&&
 973                     (!fd.getSymbol().equals("cachedCode")||state.TASK))
 974                     fields.add(fd);
 975             }
 976         }
 977         Vector fields=(Vector)fieldorder.get(cn);
 978
 979         for(int i=0;i<fields.size();i++) {
 980             FieldDescriptor fd=(FieldDescriptor)fields.get(i);
 981             if (fd.getType().isClass()||fd.getType().isArray())
 982                 classdefout.println("  struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
 983             else
 984                 classdefout.println("  "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
 985         }
 986     }
 987
 988
 989     /* Map flags to integers consistently between inherited
 990      * classes. */
 991
 992     protected void mapFlags(ClassDescriptor cn) {
 993         ClassDescriptor sp=cn.getSuperDesc();
 994         if (sp!=null)
 995             mapFlags(sp);
 996         int max=0;
 997         if (!flagorder.containsKey(cn)) {
 998             Hashtable flags=new Hashtable();
 999             flagorder.put(cn,flags);
1000             if (sp!=null) {
1001                 Hashtable superflags=(Hashtable)flagorder.get(sp);
1002                 Iterator superflagit=superflags.keySet().iterator();
1003                 while(superflagit.hasNext()) {
1004                     FlagDescriptor fd=(FlagDescriptor)superflagit.next();
1005                     Integer number=(Integer)superflags.get(fd);
1006                     flags.put(fd, number);
1007                     if ((number.intValue()+1)>max)
1008                         max=number.intValue()+1;
1009                 }
1010             }
1011
1012             Iterator flagit=cn.getFlags();
1013             while(flagit.hasNext()) {
1014                 FlagDescriptor fd=(FlagDescriptor)flagit.next();
1015                 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
1016                     flags.put(fd, new Integer(max++));
1017             }
1018         }
1019     }
1020
1021
1022     /** This function outputs (1) structures that parameters are
1023      * passed in (when PRECISE GC is enabled) and (2) function
1024      * prototypes for the methods */
1025
1026     protected void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
1027         /* Output class structure */
1028         classdefout.println("struct "+cn.getSafeSymbol()+" {");
1029         classdefout.println("  int type;");
1030         if (state.THREAD) {
1031             classdefout.println("  pthread_t tid;");
1032             classdefout.println("  void * lockentry;");
1033             classdefout.println("  int lockcount;");
1034         }
1035
1036         if (state.TASK) {
1037             classdefout.println("  int flag;");
1038             if((!state.MULTICORE) || (cn.getSymbol().equals("TagDescriptor"))) {
1039                 classdefout.println("  void * flagptr;");
1040             } else if (state.MULTICORE){
1041                 classdefout.println("  int isolate;"); // indicate if this object is shared or not
1042                 classdefout.println("  int version;");
1043                 classdefout.println("  struct ___Object___ * original;");
1044             }
1045             if (state.OPTIONAL){
1046                 classdefout.println("  int numfses;");
1047                 classdefout.println("  int * fses;");
1048             }
1049         }
1050         printClassStruct(cn, classdefout);
1051         classdefout.println("};\n");
1052
1053         if (state.DSM) {
1054             /* Cycle through LocalityBindings */
1055             HashSet<MethodDescriptor> nativemethods=new HashSet<MethodDescriptor>();
1056             Set<LocalityBinding> lbset=locality.getClassBindings(cn);
1057             if (lbset!=null) {
1058                 for(Iterator<LocalityBinding> lbit=lbset.iterator();lbit.hasNext();) {
1059                     LocalityBinding lb=lbit.next();
1060                     MethodDescriptor md=lb.getMethod();
1061                     if (md.getModifiers().isNative()) {
1062                         //make sure we only print a native method once
1063                         if (nativemethods.contains(md)) {
1064                             FlatMethod fm=state.getMethodFlat(md);
1065                             generateTempStructs(fm, lb);
1066                             continue;
1067                         } else
1068                             nativemethods.add(md);
1069                     }
1070                     generateMethod(cn, md, lb, headersout, output);
1071                 }
1072             }
1073             for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1074                 MethodDescriptor md=(MethodDescriptor)methodit.next();
1075                 if (md.getModifiers().isNative()&&!nativemethods.contains(md)) {
1076                     //Need to build param structure for library code
1077                     FlatMethod fm=state.getMethodFlat(md);
1078                     generateTempStructs(fm, null);
1079                     generateMethodParam(cn, md, null, output);
1080                 }
1081             }
1082
1083         } else
1084             for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1085                 MethodDescriptor md=(MethodDescriptor)methodit.next();
1086                 generateMethod(cn, md, null, headersout, output);
1087             }
1088     }
1089
1090     private void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter output) {
1091         /* Output parameter structure */
1092         if (GENERATEPRECISEGC) {
1093             ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1094             if (state.DSM&&lb!=null)
1095                 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1096             else
1097                 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1098             output.println("  int size;");
1099             output.println("  void * next;");
1100             for(int i=0;i<objectparams.numPointers();i++) {
1101                 TempDescriptor temp=objectparams.getPointer(i);
1102                 output.println("  struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1103             }
1104             output.println("};\n");
1105         }
1106     }
1107
1108
1109     private void generateMethod(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter headersout, PrintWriter output) {
1110         FlatMethod fm=state.getMethodFlat(md);
1111         generateTempStructs(fm, lb);
1112
1113         ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1114         TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md);
1115
1116         generateMethodParam(cn, md, lb, output);
1117
1118         /* Output temp structure */
1119         if (GENERATEPRECISEGC) {
1120             if (state.DSM)
1121                 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1122             else
1123                 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1124             output.println("  int size;");
1125             output.println("  void * next;");
1126             for(int i=0;i<objecttemps.numPointers();i++) {
1127                 TempDescriptor temp=objecttemps.getPointer(i);
1128                 if (temp.getType().isNull())
1129                     output.println("  void * "+temp.getSafeSymbol()+";");
1130                 else
1131                     output.println("  struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1132             }
1133             output.println("};\n");
1134         }
1135
1136         /********* Output method declaration ***********/
1137
1138         /* First the return type */
1139         if (md.getReturnType()!=null) {
1140             if (md.getReturnType().isClass()||md.getReturnType().isArray())
1141                 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1142             else
1143                 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1144         } else
1145             //catch the constructor case
1146             headersout.print("void ");
1147
1148         /* Next the method name */
1149         if (state.DSM) {
1150             headersout.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1151         } else
1152             headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1153
1154         boolean printcomma=false;
1155         if (GENERATEPRECISEGC) {
1156             if (state.DSM) {
1157                 headersout.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1158             } else
1159                 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1160             printcomma=true;
1161         }
1162
1163         if (state.DSM&&lb.isAtomic()&&!md.getModifiers().isNative()) {
1164             if (printcomma)
1165                 headersout.print(", ");
1166             headersout.print("transrecord_t * trans");
1167             printcomma=true;
1168         }
1169
1170         /*  Output parameter list*/
1171         for(int i=0;i<objectparams.numPrimitives();i++) {
1172             TempDescriptor temp=objectparams.getPrimitive(i);
1173             if (printcomma)
1174                 headersout.print(", ");
1175             printcomma=true;
1176             if (temp.getType().isClass()||temp.getType().isArray())
1177                 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1178             else
1179                 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1180         }
1181         headersout.println(");\n");
1182     }
1183
1184
1185     /** This function outputs (1) structures that parameters are
1186      * passed in (when PRECISE GC is enabled) and (2) function
1187      * prototypes for the tasks */
1188
1189     private void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1190         /* Cycle through tasks */
1191         Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1192
1193         while(taskit.hasNext()) {
1194             /* Classify parameters */
1195             TaskDescriptor task=(TaskDescriptor)taskit.next();
1196             FlatMethod fm=state.getMethodFlat(task);
1197             generateTempStructs(fm, null);
1198
1199             ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1200             TempObject objecttemps=(TempObject) tempstable.get(task);
1201
1202             /* Output parameter structure */
1203             if (GENERATEPRECISEGC) {
1204                 output.println("struct "+task.getSafeSymbol()+"_params {");
1205
1206                 output.println("  int size;");
1207                 output.println("  void * next;");
1208                 for(int i=0;i<objectparams.numPointers();i++) {
1209                     TempDescriptor temp=objectparams.getPointer(i);
1210                     output.println("  struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1211                 }
1212
1213                 output.println("};\n");
1214                 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1215                     maxtaskparams=objectparams.numPointers()+fm.numTags();
1216                 }
1217             }
1218
1219             /* Output temp structure */
1220             if (GENERATEPRECISEGC) {
1221                 output.println("struct "+task.getSafeSymbol()+"_locals {");
1222                 output.println("  int size;");
1223                 output.println("  void * next;");
1224                 for(int i=0;i<objecttemps.numPointers();i++) {
1225                     TempDescriptor temp=objecttemps.getPointer(i);
1226                     if (temp.getType().isNull())
1227                         output.println("  void * "+temp.getSafeSymbol()+";");
1228                     else if(temp.getType().isTag())
1229                         output.println("  struct "+
1230                                        (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1231                     else
1232                         output.println("  struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1233                 }
1234                 output.println("};\n");
1235             }
1236
1237             /* Output task declaration */
1238             headersout.print("void " + task.getSafeSymbol()+"(");
1239
1240             boolean printcomma=false;
1241             if (GENERATEPRECISEGC) {
1242                 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1243             } else
1244                 headersout.print("void * parameterarray[]");
1245             headersout.println(");\n");
1246         }
1247     }
1248
1249     /***** Generate code for FlatMethod fm. *****/
1250
1251     private void generateFlatMethod(FlatMethod fm, LocalityBinding lb, PrintWriter output) {
1252         if (State.PRINTFLAT)
1253             System.out.println(fm.printMethod());
1254         MethodDescriptor md=fm.getMethod();
1255
1256         TaskDescriptor task=fm.getTask();
1257
1258         ClassDescriptor cn=md!=null?md.getClassDesc():null;
1259
1260         ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:md!=null?md:task);
1261         generateHeader(fm, lb, md!=null?md:task,output);
1262         TempObject objecttemp=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1263         if (state.DSM&&lb.getHasAtomic()) {
1264             output.println("transrecord_t * trans;");
1265         }
1266
1267         if (GENERATEPRECISEGC) {
1268             if (md!=null&&state.DSM)
1269                 output.print("   struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1270             else if (md!=null&&!state.DSM)
1271                 output.print("   struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1272             else
1273                 output.print("   struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
1274
1275             output.print(objecttemp.numPointers()+",");
1276             output.print(paramsprefix);
1277             for(int j=0;j<objecttemp.numPointers();j++)
1278                 output.print(", NULL");
1279             output.println("};");
1280         }
1281
1282         for(int i=0;i<objecttemp.numPrimitives();i++) {
1283             TempDescriptor td=objecttemp.getPrimitive(i);
1284             TypeDescriptor type=td.getType();
1285             if (type.isNull())
1286                 output.println("   void * "+td.getSafeSymbol()+";");
1287             else if (type.isClass()||type.isArray())
1288                 output.println("   struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1289             else
1290                 output.println("   "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1291         }
1292
1293         /* Assign labels to FlatNode's if necessary.*/
1294
1295         Hashtable<FlatNode, Integer> nodetolabel=assignLabels(fm);
1296
1297         /* Check to see if we need to do a GC if this is a
1298          * multi-threaded program...*/
1299
1300         if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1301             if (state.DSM&&lb.isAtomic())
1302                 output.println("checkcollect2(&"+localsprefix+",trans);");
1303             else
1304                 output.println("checkcollect(&"+localsprefix+");");
1305         }
1306
1307         /* Do the actual code generation */
1308         FlatNode current_node=null;
1309         HashSet tovisit=new HashSet();
1310         HashSet visited=new HashSet();
1311         tovisit.add(fm.getNext(0));
1312         while(current_node!=null||!tovisit.isEmpty()) {
1313             if (current_node==null) {
1314                 current_node=(FlatNode)tovisit.iterator().next();
1315                 tovisit.remove(current_node);
1316             }
1317             visited.add(current_node);
1318             if (nodetolabel.containsKey(current_node))
1319                 output.println("L"+nodetolabel.get(current_node)+":");
1320             if (state.INSTRUCTIONFAILURE) {
1321                 if (state.THREAD||state.DSM) {
1322                     output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
1323                 }
1324                 else
1325                     output.println("if ((--instructioncount)==0) injectinstructionfailure();");
1326             }
1327             if (current_node.numNext()==0) {
1328                 output.print("   ");
1329                 generateFlatNode(fm, lb, current_node, output);
1330                 if (current_node.kind()!=FKind.FlatReturnNode) {
1331                     output.println("   return;");
1332                 }
1333                 current_node=null;
1334             } else if(current_node.numNext()==1) {
1335                 output.print("   ");
1336                 generateFlatNode(fm, lb, current_node, output);
1337                 FlatNode nextnode=current_node.getNext(0);
1338                 if (visited.contains(nextnode)) {
1339                     output.println("goto L"+nodetolabel.get(nextnode)+";");
1340                     current_node=null;
1341                 } else
1342                     current_node=nextnode;
1343             } else if (current_node.numNext()==2) {
1344                 /* Branch */
1345                 output.print("   ");
1346                 generateFlatCondBranch(fm, lb, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
1347                 if (!visited.contains(current_node.getNext(1)))
1348                     tovisit.add(current_node.getNext(1));
1349                 if (visited.contains(current_node.getNext(0))) {
1350                     output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
1351                     current_node=null;
1352                 } else
1353                     current_node=current_node.getNext(0);
1354             } else throw new Error();
1355         }
1356         output.println("}\n\n");
1357     }
1358
1359     /** This method assigns labels to FlatNodes */
1360
1361     protected Hashtable<FlatNode, Integer> assignLabels(FlatMethod fm) {
1362         HashSet tovisit=new HashSet();
1363         HashSet visited=new HashSet();
1364         int labelindex=0;
1365         Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
1366         tovisit.add(fm.getNext(0));
1367
1368         /*Assign labels first.  A node needs a label if the previous
1369          * node has two exits or this node is a join point. */
1370
1371         while(!tovisit.isEmpty()) {
1372             FlatNode fn=(FlatNode)tovisit.iterator().next();
1373             tovisit.remove(fn);
1374             visited.add(fn);
1375             for(int i=0;i<fn.numNext();i++) {
1376                 FlatNode nn=fn.getNext(i);
1377                 if(i>0) {
1378                     //1) Edge >1 of node
1379                     nodetolabel.put(nn,new Integer(labelindex++));
1380                 }
1381                 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1382                     tovisit.add(nn);
1383                 } else {
1384                     //2) Join point
1385                     nodetolabel.put(nn,new Integer(labelindex++));
1386                 }
1387             }
1388         }
1389         return nodetolabel;
1390     }
1391
1392
1393     /** Generate text string that corresponds to the TempDescriptor td. */
1394     protected String generateTemp(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1395         MethodDescriptor md=fm.getMethod();
1396         TaskDescriptor task=fm.getTask();
1397         TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1398
1399         if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1400             return td.getSafeSymbol();
1401         }
1402
1403         if (objecttemps.isLocalPtr(td)) {
1404             return localsprefix+"."+td.getSafeSymbol();
1405         }
1406
1407         if (objecttemps.isParamPtr(td)) {
1408             return paramsprefix+"->"+td.getSafeSymbol();
1409         }
1410         throw new Error();
1411     }
1412
1413     protected void generateFlatNode(FlatMethod fm, LocalityBinding lb, FlatNode fn, PrintWriter output) {
1414         switch(fn.kind()) {
1415         case FKind.FlatAtomicEnterNode:
1416             generateFlatAtomicEnterNode(fm, lb, (FlatAtomicEnterNode) fn, output);
1417             return;
1418         case FKind.FlatAtomicExitNode:
1419             generateFlatAtomicExitNode(fm, lb, (FlatAtomicExitNode) fn, output);
1420             return;
1421         case FKind.FlatGlobalConvNode:
1422             generateFlatGlobalConvNode(fm, lb, (FlatGlobalConvNode) fn, output);
1423             return;
1424         case FKind.FlatTagDeclaration:
1425             generateFlatTagDeclaration(fm, lb, (FlatTagDeclaration) fn,output);
1426             return;
1427         case FKind.FlatCall:
1428             generateFlatCall(fm, lb, (FlatCall) fn,output);
1429             return;
1430         case FKind.FlatFieldNode:
1431             generateFlatFieldNode(fm, lb, (FlatFieldNode) fn,output);
1432             return;
1433         case FKind.FlatElementNode:
1434             generateFlatElementNode(fm, lb, (FlatElementNode) fn,output);
1435             return;
1436         case FKind.FlatSetElementNode:
1437             generateFlatSetElementNode(fm, lb, (FlatSetElementNode) fn,output);
1438             return;
1439         case FKind.FlatSetFieldNode:
1440             generateFlatSetFieldNode(fm, lb, (FlatSetFieldNode) fn,output);
1441             return;
1442         case FKind.FlatNew:
1443             generateFlatNew(fm, lb, (FlatNew) fn,output);
1444             return;
1445         case FKind.FlatOpNode:
1446             generateFlatOpNode(fm, lb, (FlatOpNode) fn,output);
1447             return;
1448         case FKind.FlatCastNode:
1449             generateFlatCastNode(fm, lb, (FlatCastNode) fn,output);
1450             return;
1451         case FKind.FlatLiteralNode:
1452             generateFlatLiteralNode(fm, lb, (FlatLiteralNode) fn,output);
1453             return;
1454         case FKind.FlatReturnNode:
1455             generateFlatReturnNode(fm, lb, (FlatReturnNode) fn,output);
1456             return;
1457         case FKind.FlatNop:
1458             output.println("/* nop */");
1459             return;
1460         case FKind.FlatBackEdge:
1461             if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1462                 if(state.DSM&&locality.getAtomic(lb).get(fn).intValue()>0) {
1463                     output.println("checkcollect2(&"+localsprefix+",trans);");
1464                 } else
1465                     output.println("checkcollect(&"+localsprefix+");");
1466             } else
1467                 output.println("/* nop */");
1468             return;
1469         case FKind.FlatCheckNode:
1470             generateFlatCheckNode(fm, lb, (FlatCheckNode) fn, output);
1471             return;
1472         case FKind.FlatFlagActionNode:
1473             generateFlatFlagActionNode(fm, lb, (FlatFlagActionNode) fn, output);
1474             return;
1475         case FKind.FlatPrefetchNode:
1476             generateFlatPrefetchNode(fm,lb, (FlatPrefetchNode) fn, output);
1477             return;
1478         }
1479         throw new Error();
1480     }
1481
1482     public void generateFlatPrefetchNode(FlatMethod fm, LocalityBinding lb, FlatPrefetchNode fpn, PrintWriter output) {
1483         if (state.PREFETCH) {
1484             Vector oids = new Vector();
1485             Vector fieldoffset = new Vector();
1486             Vector endoffset = new Vector();
1487             int tuplecount = 0;  //Keeps track of number of prefetch tuples that need to be generated
1488             for(Iterator it = fpn.hspp.iterator();it.hasNext();) {
1489                 PrefetchPair pp = (PrefetchPair) it.next();
1490                 Integer statusbase = locality.getNodePreTempInfo(lb,fpn).get(pp.base);
1491                 /* Find prefetches that can generate oid */
1492                 if(statusbase == LocalityAnalysis.GLOBAL) {
1493                     generateTransCode(fm, lb, pp, oids, fieldoffset, endoffset, tuplecount, locality.getAtomic(lb).get(fpn).intValue()>0, false);
1494                     tuplecount++;
1495                 } else if (statusbase == LocalityAnalysis.LOCAL) {
1496                     generateTransCode(fm,lb,pp,oids,fieldoffset,endoffset,tuplecount,false,true);
1497                 } else {
1498                     continue;
1499                 }
1500             }
1501             if (tuplecount==0)
1502                 return;
1503             output.println("{");
1504             output.println("/* prefetch */");
1505         output.println("/* prefetchid_" + fpn.siteid + " */");
1506             output.println("void * prefptr;");
1507             output.println("int tmpindex;");
1508
1509         output.println("if((evalPrefetch["+fpn.siteid+"].operMode) || (evalPrefetch["+fpn.siteid+"].retrycount <= 0)) {");
1510             /*Create C code for oid array */
1511             output.print("   unsigned int oidarray_[] = {");
1512             boolean needcomma=false;
1513             for (Iterator it = oids.iterator();it.hasNext();) {
1514                 if (needcomma)
1515                     output.print(", ");
1516                 output.print(it.next());
1517                 needcomma=true;
1518             }
1519             output.println("};");
1520
1521             /*Create C code for endoffset values */
1522             output.print("   unsigned short endoffsetarry_[] = {");
1523             needcomma=false;
1524             for (Iterator it = endoffset.iterator();it.hasNext();) {
1525                 if (needcomma)
1526                     output.print(", ");
1527                 output.print(it.next());
1528                 needcomma=true;
1529             }
1530             output.println("};");
1531
1532             /*Create C code for Field Offset Values */
1533             output.print("   short fieldarry_[] = {");
1534             needcomma=false;
1535             for (Iterator it = fieldoffset.iterator();it.hasNext();) {
1536                 if (needcomma)
1537                     output.print(", ");
1538                 output.print(it.next());
1539                 needcomma=true;
1540             }
1541             output.println("};");
1542             /* make the prefetch call to Runtime */
1543         output.println("   if(!evalPrefetch["+fpn.siteid+"].operMode) {");
1544             output.println("     evalPrefetch["+fpn.siteid+"].retrycount = RETRYINTERVAL;");
1545             output.println("   }");
1546             output.println("   prefetch("+fpn.siteid+" ,"+tuplecount+", oidarray_, endoffsetarry_, fieldarry_);");
1547             output.println(" } else {");
1548             output.println("   evalPrefetch["+fpn.siteid+"].retrycount--;");
1549             output.println(" }");
1550             output.println("}");
1551         }
1552     }
1553
1554     public void generateTransCode(FlatMethod fm, LocalityBinding lb,PrefetchPair pp, Vector oids, Vector fieldoffset, Vector endoffset, int tuplecount, boolean inside, boolean localbase) {
1555         short offsetcount = 0;
1556         int breakindex=0;
1557         if (inside) {
1558             breakindex=1;
1559         } else if (localbase) {
1560             for(;breakindex<pp.desc.size();breakindex++) {
1561                 Descriptor desc=pp.getDescAt(breakindex);
1562                 if (desc instanceof FieldDescriptor) {
1563                     FieldDescriptor fd=(FieldDescriptor)desc;
1564                     if (fd.isGlobal()) {
1565                         break;
1566                     }
1567                 }
1568             }
1569             breakindex++;
1570         }
1571
1572         if (breakindex>pp.desc.size()) //all local
1573             return;
1574
1575         TypeDescriptor lasttype=pp.base.getType();
1576         String basestr=generateTemp(fm, pp.base, lb);
1577         String teststr="";
1578         boolean maybenull=fm.getMethod().isStatic()||
1579             !pp.base.equals(fm.getParameter(0));
1580
1581         for(int i=0;i<breakindex;i++) {
1582             String indexcheck="";
1583
1584             Descriptor desc=pp.getDescAt(i);
1585             if (desc instanceof FieldDescriptor) {
1586                 FieldDescriptor fd=(FieldDescriptor)desc;
1587                 if (maybenull) {
1588                     if (!teststr.equals(""))
1589                         teststr+="&&";
1590                     teststr+="((prefptr="+basestr+")!=NULL)";
1591                     basestr="((struct "+lasttype.getSafeSymbol()+" *)prefptr)->"+fd.getSafeSymbol();
1592                 } else {
1593                     basestr=basestr+"->"+fd.getSafeSymbol();
1594                     maybenull=true;
1595                 }
1596                 lasttype=fd.getType();
1597             } else {
1598                 IndexDescriptor id=(IndexDescriptor)desc;
1599                 indexcheck="((tmpindex=";
1600                 for(int j=0;j<id.tddesc.size();j++) {
1601                     indexcheck+=generateTemp(fm, id.getTempDescAt(j), lb)+"+";
1602                 }
1603                 indexcheck+=id.offset+")>=0)&&(tmpindex<((struct ArrayObject *)prefptr)->___length___)";
1604
1605                 if (!teststr.equals(""))
1606                     teststr+="&&";
1607                 teststr+="((prefptr="+basestr+")!= NULL) &&"+indexcheck;
1608                 basestr="((void **)(((char *) &(((struct ArrayObject *)prefptr)->___length___))+sizeof(int)))[tmpindex]";
1609                 maybenull=true;
1610                 lasttype=lasttype.dereference();
1611             }
1612         }
1613
1614         String oid;
1615         if (teststr.equals("")) {
1616             oid="((unsigned int)"+basestr+")";
1617         } else {
1618             oid="((unsigned int)(("+teststr+")?"+basestr+":NULL))";
1619         }
1620         oids.add(oid);
1621
1622         for(int i = breakindex; i < pp.desc.size(); i++) {
1623             String newfieldoffset;
1624             Object desc = pp.getDescAt(i);
1625             if(desc instanceof FieldDescriptor) {
1626                 FieldDescriptor fd=(FieldDescriptor)desc;
1627                 newfieldoffset = new String("(unsigned int)(&(((struct "+ lasttype.getSafeSymbol()+" *)0)->"+ fd.getSafeSymbol()+ "))");
1628                 lasttype=fd.getType();
1629             } else {
1630                 newfieldoffset = "";
1631                 IndexDescriptor id=(IndexDescriptor)desc;
1632                 for(int j = 0; j < id.tddesc.size(); j++) {
1633                     newfieldoffset += generateTemp(fm, id.getTempDescAt(j), lb) + "+";
1634                 }
1635                 newfieldoffset += id.offset.toString();
1636                 lasttype=lasttype.dereference();
1637             }
1638             fieldoffset.add(newfieldoffset);
1639         }
1640
1641         int base=(tuplecount>0)?((Short)endoffset.get(tuplecount-1)).intValue():0;
1642         base+=pp.desc.size()-breakindex;
1643         endoffset.add(new Short((short)base));
1644     }
1645
1646
1647
1648     public void generateFlatGlobalConvNode(FlatMethod fm, LocalityBinding lb, FlatGlobalConvNode fgcn, PrintWriter output) {
1649             if (lb!=fgcn.getLocality())
1650                     return;
1651             /* Have to generate flat globalconv */
1652             if (fgcn.getMakePtr()) {
1653                     output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)transRead(trans, (unsigned int) "+generateTemp(fm, fgcn.getSrc(),lb)+");");
1654             } else {
1655                     /* Need to convert to OID */
1656                     output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)COMPOID("+generateTemp(fm, fgcn.getSrc(),lb)+");");
1657             }
1658     }
1659
1660     public void generateFlatAtomicEnterNode(FlatMethod fm,  LocalityBinding lb, FlatAtomicEnterNode faen, PrintWriter output) {
1661             /* Check to see if we need to generate code for this atomic */
1662             if (locality.getAtomic(lb).get(faen.getPrev(0)).intValue()>0)
1663                     return;
1664             /* Backup the temps. */
1665             for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1666                     TempDescriptor tmp=tmpit.next();
1667                     output.println(generateTemp(fm, backuptable.get(tmp),lb)+"="+generateTemp(fm,tmp,lb)+";");
1668             }
1669             output.println("goto transstart"+faen.getIdentifier()+";");
1670
1671             /******* Print code to retry aborted transaction *******/
1672             output.println("transretry"+faen.getIdentifier()+":");
1673
1674             /* Restore temps */
1675             for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1676                     TempDescriptor tmp=tmpit.next();
1677                     output.println(generateTemp(fm, tmp,lb)+"="+generateTemp(fm,backuptable.get(tmp),lb)+";");
1678             }
1679
1680             /********* Need to revert local object store ********/
1681             String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1682
1683         output.println("while ("+revertptr+") {");
1684         output.println("struct ___Object___ * tmpptr;");
1685         output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1686         output.println("REVERT_OBJ("+revertptr+");");
1687         output.println(revertptr+"=tmpptr;");
1688         output.println("}");
1689
1690         /******* Tell the runtime to start the transaction *******/
1691
1692         output.println("transstart"+faen.getIdentifier()+":");
1693         output.println("trans=transStart();");
1694     }
1695
1696     public void generateFlatAtomicExitNode(FlatMethod fm,  LocalityBinding lb, FlatAtomicExitNode faen, PrintWriter output) {
1697         /* Check to see if we need to generate code for this atomic */
1698         if (locality.getAtomic(lb).get(faen).intValue()>0)
1699             return;
1700         //store the revert list before we lose the transaction object
1701         String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1702         output.println(revertptr+"=trans->revertlist;");
1703         output.println("if (transCommit(trans)) {");
1704         /* Transaction aborts if it returns true */
1705         output.println("goto transretry"+faen.getAtomicEnter().getIdentifier()+";");
1706         output.println("} else {");
1707         /* Need to commit local object store */
1708         output.println("while ("+revertptr+") {");
1709         output.println("struct ___Object___ * tmpptr;");
1710         output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1711         output.println("COMMIT_OBJ("+revertptr+");");
1712         output.println(revertptr+"=tmpptr;");
1713         output.println("}");
1714         output.println("}");
1715     }
1716
1717     private void generateFlatCheckNode(FlatMethod fm,  LocalityBinding lb, FlatCheckNode fcn, PrintWriter output) {
1718         if (state.CONSCHECK) {
1719             String specname=fcn.getSpec();
1720             String varname="repairstate___";
1721             output.println("{");
1722             output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1723
1724             TempDescriptor[] temps=fcn.getTemps();
1725             String[] vars=fcn.getVars();
1726             for(int i=0;i<temps.length;i++) {
1727                 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i],lb)+";");
1728             }
1729
1730             output.println("if (doanalysis"+specname+"("+varname+")) {");
1731             output.println("free"+specname+"_state("+varname+");");
1732             output.println("} else {");
1733             output.println("/* Bad invariant */");
1734             output.println("free"+specname+"_state("+varname+");");
1735             output.println("abort_task();");
1736             output.println("}");
1737             output.println("}");
1738         }
1739     }
1740
1741     private void generateFlatCall(FlatMethod fm, LocalityBinding lb, FlatCall fc, PrintWriter output) {
1742         MethodDescriptor md=fc.getMethod();
1743         ParamsObject objectparams=(ParamsObject)paramstable.get(state.DSM?locality.getBinding(lb, fc):md);
1744         ClassDescriptor cn=md.getClassDesc();
1745         output.println("{");
1746         if (GENERATEPRECISEGC) {
1747             if (state.DSM) {
1748                 LocalityBinding fclb=locality.getBinding(lb, fc);
1749                 output.print("       struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1750             } else
1751                 output.print("       struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1752
1753             output.print(objectparams.numPointers());
1754             output.print(", & "+localsprefix);
1755             if (md.getThis()!=null) {
1756                 output.print(", ");
1757                 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis(),lb));
1758             }
1759             if (fc.getThis()!=null&&md.getThis()==null) {
1760                 System.out.println("WARNING!!!!!!!!!!!!");
1761                 System.out.println("Source code calls static method"+md+"on an object in "+fm.getMethod()+"!");
1762             }
1763
1764
1765             for(int i=0;i<fc.numArgs();i++) {
1766                 Descriptor var=md.getParameter(i);
1767                 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1768                 if (objectparams.isParamPtr(paramtemp)) {
1769                     TempDescriptor targ=fc.getArg(i);
1770                     output.print(", ");
1771                     TypeDescriptor td=md.getParamType(i);
1772                     if (td.isTag())
1773                         output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()  +" *)"+generateTemp(fm, targ,lb));
1774                     else
1775                         output.print("(struct "+md.getParamType(i).getSafeSymbol()  +" *)"+generateTemp(fm, targ,lb));
1776                 }
1777             }
1778             output.println("};");
1779         }
1780         output.print("       ");
1781
1782
1783         if (fc.getReturnTemp()!=null)
1784             output.print(generateTemp(fm,fc.getReturnTemp(),lb)+"=");
1785
1786         /* Do we need to do virtual dispatch? */
1787         if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
1788             //no
1789             if (state.DSM) {
1790                 LocalityBinding fclb=locality.getBinding(lb, fc);
1791                 output.print(cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1792             } else {
1793                 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1794             }
1795         } else {
1796             //yes
1797             output.print("((");
1798             if (md.getReturnType().isClass()||md.getReturnType().isArray())
1799                 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1800             else
1801                 output.print(md.getReturnType().getSafeSymbol()+" ");
1802             output.print("(*)(");
1803
1804             boolean printcomma=false;
1805             if (GENERATEPRECISEGC) {
1806                 if (state.DSM) {
1807                     LocalityBinding fclb=locality.getBinding(lb, fc);
1808                     output.print("struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1809                 } else
1810                     output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1811                 printcomma=true;
1812             }
1813
1814             for(int i=0;i<objectparams.numPrimitives();i++) {
1815                 TempDescriptor temp=objectparams.getPrimitive(i);
1816                 if (printcomma)
1817                     output.print(", ");
1818                 printcomma=true;
1819                 if (temp.getType().isClass()||temp.getType().isArray())
1820                     output.print("struct " + temp.getType().getSafeSymbol()+" * ");
1821                 else
1822                     output.print(temp.getType().getSafeSymbol());
1823             }
1824
1825             if (state.DSM&&locality.getBinding(lb,fc).isAtomic()&&!fc.getMethod().getModifiers().isNative()) {
1826                 LocalityBinding fclb=locality.getBinding(lb, fc);
1827                 if (printcomma)
1828                     output.print(", ");
1829                 output.print("transrecord_t *");
1830                 printcomma=true;
1831             }
1832
1833             if (state.DSM) {
1834                 LocalityBinding fclb=locality.getBinding(lb, fc);
1835                 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getLocalityNumber(fclb)+"])");
1836             } else
1837                 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
1838         }
1839
1840         output.print("(");
1841         boolean needcomma=false;
1842         if (GENERATEPRECISEGC) {
1843             output.print("&__parameterlist__");
1844             needcomma=true;
1845         }
1846
1847         if (state.DSM&&locality.getBinding(lb,fc).isAtomic()&&!fc.getMethod().getModifiers().isNative()) {
1848             if (needcomma)
1849                 output.print(",");
1850             output.print("trans");
1851             needcomma=true;
1852         }
1853
1854         if (!GENERATEPRECISEGC) {
1855             if (fc.getThis()!=null) {
1856                 TypeDescriptor ptd=md.getThis().getType();
1857                 if (needcomma)
1858                     output.print(",");
1859                 if (ptd.isClass()&&!ptd.isArray())
1860                     output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1861                 output.print(generateTemp(fm,fc.getThis(),lb));
1862                 needcomma=true;
1863             }
1864         }
1865
1866         for(int i=0;i<fc.numArgs();i++) {
1867             Descriptor var=md.getParameter(i);
1868             TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1869             if (objectparams.isParamPrim(paramtemp)) {
1870                 TempDescriptor targ=fc.getArg(i);
1871                 if (needcomma)
1872                     output.print(", ");
1873
1874                 TypeDescriptor ptd=md.getParamType(i);
1875                 if (ptd.isClass()&&!ptd.isArray())
1876                     output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1877                 output.print(generateTemp(fm, targ,lb));
1878                 needcomma=true;
1879             }
1880         }
1881         output.println(");");
1882         output.println("   }");
1883     }
1884
1885     private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
1886         Set subclasses=typeutil.getSubClasses(thiscd);
1887         if (subclasses==null)
1888             return true;
1889         for(Iterator classit=subclasses.iterator();classit.hasNext();) {
1890             ClassDescriptor cd=(ClassDescriptor)classit.next();
1891             Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
1892             for(Iterator matchit=possiblematches.iterator();matchit.hasNext();) {
1893                 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
1894                 if (md.matches(matchmd))
1895                     return false;
1896             }
1897         }
1898         return true;
1899     }
1900
1901     private void generateFlatFieldNode(FlatMethod fm, LocalityBinding lb, FlatFieldNode ffn, PrintWriter output) {
1902         if (state.DSM) {
1903             Integer status=locality.getNodePreTempInfo(lb,ffn).get(ffn.getSrc());
1904             if (status==LocalityAnalysis.GLOBAL) {
1905                 String field=ffn.getField().getSafeSymbol();
1906                 String src=generateTemp(fm, ffn.getSrc(),lb);
1907                 String dst=generateTemp(fm, ffn.getDst(),lb);
1908
1909                 if (ffn.getField().getType().isPtr()) {
1910
1911                     //TODO: Uncomment this when we have runtime support
1912                     //if (ffn.getSrc()==ffn.getDst()) {
1913                     //output.println("{");
1914                     //output.println("void * temp="+src+";");
1915                     //output.println("if (temp&0x1) {");
1916                     //output.println("temp=(void *) transRead(trans, (unsigned int) temp);");
1917                     //output.println(src+"->"+field+"="+temp+";");
1918                     //output.println("}");
1919                     //output.println(dst+"=temp;");
1920                     //output.println("}");
1921                     //} else {
1922                     output.println(dst+"="+ src +"->"+field+ ";");
1923                     //output.println("if ("+dst+"&0x1) {");
1924                     output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1925                     //output.println(src+"->"+field+"="+src+"->"+field+";");
1926                     //output.println("}");
1927                     //}
1928                 } else {
1929                     output.println(dst+"="+ src+"->"+field+";");
1930                 }
1931             } else if (status==LocalityAnalysis.LOCAL) {
1932               if (ffn.getField().getType().isPtr()&&
1933                   ffn.getField().isGlobal()) {
1934                 String field=ffn.getField().getSafeSymbol();
1935                 String src=generateTemp(fm, ffn.getSrc(),lb);
1936                 String dst=generateTemp(fm, ffn.getDst(),lb);
1937                 output.println(dst+"="+ src +"->"+field+ ";");
1938                 if (locality.getAtomic(lb).get(ffn).intValue()>0)
1939                   output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1940               } else
1941                 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1942             } else if (status==LocalityAnalysis.EITHER) {
1943                 //Code is reading from a null pointer
1944                 output.println("if ("+generateTemp(fm, ffn.getSrc(),lb)+") {");
1945                 output.println("#ifndef RAW");
1946                 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
1947                 output.println("#endif");
1948                 //This should throw a suitable null pointer error
1949                 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1950             } else
1951                 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
1952         } else
1953             output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1954     }
1955
1956
1957     private void generateFlatSetFieldNode(FlatMethod fm, LocalityBinding lb, FlatSetFieldNode fsfn, PrintWriter output) {
1958         if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
1959             throw new Error("Can't set array length");
1960         if (state.DSM && locality.getAtomic(lb).get(fsfn).intValue()>0) {
1961             Integer statussrc=locality.getNodePreTempInfo(lb,fsfn).get(fsfn.getSrc());
1962             Integer statusdst=locality.getNodeTempInfo(lb).get(fsfn).get(fsfn.getDst());
1963             boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
1964
1965             String src=generateTemp(fm,fsfn.getSrc(),lb);
1966             String dst=generateTemp(fm,fsfn.getDst(),lb);
1967             if (srcglobal) {
1968                 output.println("{");
1969                 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
1970             }
1971             if (statusdst.equals(LocalityAnalysis.GLOBAL)) {
1972                 String glbdst=dst;
1973                 //mark it dirty
1974                 output.println("*((unsigned int *)&("+dst+"->___localcopy___))|=DIRTY;");
1975                 if (srcglobal) {
1976                     output.println("*((unsigned int *)&("+glbdst+"->"+ fsfn.getField().getSafeSymbol()+"))=srcoid;");
1977                 } else
1978                     output.println(glbdst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1979             } else if (statusdst.equals(LocalityAnalysis.LOCAL)) {
1980                 /** Check if we need to copy */
1981                 output.println("if(!"+dst+"->"+localcopystr+") {");
1982                 /* Link object into list */
1983                 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1984                 output.println(revertptr+"=trans->revertlist;");
1985                 if (GENERATEPRECISEGC)
1986                     output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
1987                 else
1988                     output.println("COPY_OBJ("+dst+");");
1989                 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
1990                 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
1991                 output.println("}");
1992                 if (srcglobal)
1993                     output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
1994                 else
1995                     output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1996             } else if (statusdst.equals(LocalityAnalysis.EITHER)) {
1997                 //writing to a null...bad
1998                 output.println("if ("+dst+") {");
1999                 output.println("#ifndef RAW");
2000                 output.println("printf(\"BIG ERROR 2\\n\");exit(-1);}");
2001                 output.println("#endif");
2002                 if (srcglobal)
2003                     output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
2004                 else
2005                     output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
2006             }
2007             if (srcglobal) {
2008                 output.println("}");
2009             }
2010         } else {
2011             output.println(generateTemp(fm, fsfn.getDst(),lb)+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc(),lb)+";");
2012         }
2013     }
2014
2015     private void generateFlatElementNode(FlatMethod fm, LocalityBinding lb, FlatElementNode fen, PrintWriter output) {
2016         TypeDescriptor elementtype=fen.getSrc().getType().dereference();
2017         String type="";
2018
2019         if (elementtype.isArray()||elementtype.isClass())
2020             type="void *";
2021         else
2022             type=elementtype.getSafeSymbol()+" ";
2023
2024         if (fen.needsBoundsCheck()) {
2025             output.println("if ("+generateTemp(fm, fen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fen.getIndex(),lb)+" >= "+generateTemp(fm,fen.getSrc(),lb) + "->___length___)");
2026             output.println("failedboundschk();");
2027         }
2028         if (state.DSM) {
2029             Integer status=locality.getNodePreTempInfo(lb,fen).get(fen.getSrc());
2030             if (status==LocalityAnalysis.GLOBAL) {
2031                 String dst=generateTemp(fm, fen.getDst(),lb);
2032
2033                 if (elementtype.isPtr()) {
2034                     output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2035                     output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
2036                 } else {
2037                     output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2038                 }
2039             } else if (status==LocalityAnalysis.LOCAL) {
2040                 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2041             } else if (status==LocalityAnalysis.EITHER) {
2042                 //Code is reading from a null pointer
2043                 output.println("if ("+generateTemp(fm, fen.getSrc(),lb)+") {");
2044                 output.println("#ifndef RAW");
2045                 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
2046                 output.println("#endif");
2047                 //This should throw a suitable null pointer error
2048                 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2049             } else
2050                 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
2051         } else {
2052             output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2053         }
2054     }
2055
2056     private void generateFlatSetElementNode(FlatMethod fm, LocalityBinding lb, FlatSetElementNode fsen, PrintWriter output) {
2057         //TODO: need dynamic check to make sure this assignment is actually legal
2058         //Because Object[] could actually be something more specific...ie. Integer[]
2059
2060         TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2061         String type="";
2062
2063         if (elementtype.isArray()||elementtype.isClass())
2064             type="void *";
2065         else
2066             type=elementtype.getSafeSymbol()+" ";
2067
2068
2069         if (fsen.needsBoundsCheck()) {
2070             output.println("if ("+generateTemp(fm, fsen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fsen.getIndex(),lb)+" >= "+generateTemp(fm,fsen.getDst(),lb) + "->___length___)");
2071             output.println("failedboundschk();");
2072         }
2073
2074         if (state.DSM && locality.getAtomic(lb).get(fsen).intValue()>0) {
2075             Integer statussrc=locality.getNodePreTempInfo(lb,fsen).get(fsen.getSrc());
2076             Integer statusdst=locality.getNodePreTempInfo(lb,fsen).get(fsen.getDst());
2077             boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
2078             boolean dstglobal=statusdst==LocalityAnalysis.GLOBAL;
2079             boolean dstlocal=statusdst==LocalityAnalysis.LOCAL;
2080
2081             if (dstglobal) {
2082                 output.println("*((unsigned int *)&("+generateTemp(fm,fsen.getDst(),lb)+"->___localcopy___))|=DIRTY;");
2083             } else if (dstlocal) {
2084                 /** Check if we need to copy */
2085                 String dst=generateTemp(fm, fsen.getDst(),lb);
2086                 output.println("if(!"+dst+"->"+localcopystr+") {");
2087                 /* Link object into list */
2088                 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2089                 output.println(revertptr+"=trans->revertlist;");
2090                 if (GENERATEPRECISEGC)
2091                     output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
2092                 else
2093                     output.println("COPY_OBJ("+dst+");");
2094                 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
2095                 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
2096                 output.println("}");
2097             } else throw new Error("Unknown array type");
2098             if (srcglobal) {
2099                 output.println("{");
2100                 String src=generateTemp(fm, fsen.getSrc(), lb);
2101                 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
2102                 output.println("((int*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]=srcoid;");
2103                 output.println("}");
2104             } else {
2105                 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2106             }
2107         } else
2108             output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2109     }
2110
2111     private void generateFlatNew(FlatMethod fm, LocalityBinding lb, FlatNew fn, PrintWriter output) {
2112         if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2113             //Stash pointer in case of GC
2114             String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2115             output.println(revertptr+"=trans->revertlist;");
2116         }
2117         if (fn.getType().isArray()) {
2118             int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2119             if (fn.isGlobal()) {
2120                 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarrayglobal(trans, "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2121             } else if (GENERATEPRECISEGC) {
2122                 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray(&"+localsprefix+", "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2123             } else {
2124                 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2125             }
2126         } else {
2127             if (fn.isGlobal()) {
2128                 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newglobal(trans, "+fn.getType().getClassDesc().getId()+");");
2129             } else if (GENERATEPRECISEGC) {
2130                 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new(&"+localsprefix+", "+fn.getType().getClassDesc().getId()+");");
2131             } else {
2132                 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2133             }
2134         }
2135         if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2136             String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2137             output.println("trans->revertlist="+revertptr+";");
2138         }
2139     }
2140
2141     private void generateFlatTagDeclaration(FlatMethod fm, LocalityBinding lb, FlatTagDeclaration fn, PrintWriter output) {
2142         if (GENERATEPRECISEGC) {
2143             output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag(&"+localsprefix+", "+state.getTagId(fn.getType())+");");
2144         } else {
2145             output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag("+state.getTagId(fn.getType())+");");
2146         }
2147     }
2148
2149     private void generateFlatOpNode(FlatMethod fm, LocalityBinding lb, FlatOpNode fon, PrintWriter output) {
2150         if (fon.getRight()!=null) {
2151             if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2152                 if (fon.getLeft().getType().isLong())
2153                     output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2154                 else
2155                     output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned int)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2156
2157             } else
2158                 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+fon.getOp().toString()+generateTemp(fm,fon.getRight(),lb)+";");
2159         } else if (fon.getOp().getOp()==Operation.ASSIGN)
2160             output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2161         else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2162             output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2163         else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2164             output.println(generateTemp(fm, fon.getDest(),lb)+" = -"+generateTemp(fm, fon.getLeft(),lb)+";");
2165         else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2166             output.println(generateTemp(fm, fon.getDest(),lb)+" = !"+generateTemp(fm, fon.getLeft(),lb)+";");
2167         else if (fon.getOp().getOp()==Operation.COMP)
2168             output.println(generateTemp(fm, fon.getDest(),lb)+" = ~"+generateTemp(fm, fon.getLeft(),lb)+";");
2169         else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2170             output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+"->fses==NULL;");
2171         } else
2172             output.println(generateTemp(fm, fon.getDest(),lb)+fon.getOp().toString()+generateTemp(fm, fon.getLeft(),lb)+";");
2173     }
2174
2175     private void generateFlatCastNode(FlatMethod fm, LocalityBinding lb, FlatCastNode fcn, PrintWriter output) {
2176         /* TODO: Do type check here */
2177         if (fcn.getType().isArray()) {
2178             throw new Error();
2179         } else if (fcn.getType().isClass())
2180             output.println(generateTemp(fm,fcn.getDst(),lb)+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc(),lb)+";");
2181         else
2182             output.println(generateTemp(fm,fcn.getDst(),lb)+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc(),lb)+";");
2183     }
2184
2185     private void generateFlatLiteralNode(FlatMethod fm, LocalityBinding lb, FlatLiteralNode fln, PrintWriter output) {
2186         if (fln.getValue()==null)
2187             output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2188         else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2189             if (GENERATEPRECISEGC) {
2190                 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2191                     //Stash pointer in case of GC
2192                     String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2193                     output.println(revertptr+"=trans->revertlist;");
2194                 }
2195                 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(&"+localsprefix+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2196                 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2197                     //Stash pointer in case of GC
2198                     String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2199                     output.println("trans->revertlist="+revertptr+";");
2200                 }
2201             } else {
2202                 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2203             }
2204         } else if (fln.getType().isBoolean()) {
2205             if (((Boolean)fln.getValue()).booleanValue())
2206                 output.println(generateTemp(fm, fln.getDst(),lb)+"=1;");
2207             else
2208                 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2209         } else if (fln.getType().isChar()) {
2210             String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2211             output.println(generateTemp(fm, fln.getDst(),lb)+"='"+st+"';");
2212         } else if (fln.getType().isLong()) {
2213             output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+"LL;");
2214         } else
2215             output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+";");
2216     }
2217
2218     protected void generateFlatReturnNode(FlatMethod fm, LocalityBinding lb, FlatReturnNode frn, PrintWriter output) {
2219         if (frn.getReturnTemp()!=null) {
2220             if (frn.getReturnTemp().getType().isPtr())
2221                 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2222             else
2223                 output.println("return "+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2224         } else {
2225             output.println("return;");
2226         }
2227     }
2228
2229     protected void generateFlatCondBranch(FlatMethod fm, LocalityBinding lb, FlatCondBranch fcb, String label, PrintWriter output) {
2230         output.println("if (!"+generateTemp(fm, fcb.getTest(),lb)+") goto "+label+";");
2231     }
2232
2233     /** This method generates header information for the method or
2234      * task referenced by the Descriptor des. */
2235
2236     private void generateHeader(FlatMethod fm, LocalityBinding lb, Descriptor des, PrintWriter output) {
2237         /* Print header */
2238         ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:des);
2239         MethodDescriptor md=null;
2240         TaskDescriptor task=null;
2241         if (des instanceof MethodDescriptor)
2242             md=(MethodDescriptor) des;
2243         else
2244             task=(TaskDescriptor) des;
2245
2246         ClassDescriptor cn=md!=null?md.getClassDesc():null;
2247
2248         if (md!=null&&md.getReturnType()!=null) {
2249             if (md.getReturnType().isClass()||md.getReturnType().isArray())
2250                 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2251             else
2252                 output.print(md.getReturnType().getSafeSymbol()+" ");
2253         } else
2254             //catch the constructor case
2255             output.print("void ");
2256         if (md!=null) {
2257             if (state.DSM) {
2258                 output.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2259             } else
2260                 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2261         } else
2262             output.print(task.getSafeSymbol()+"(");
2263
2264         boolean printcomma=false;
2265         if (GENERATEPRECISEGC) {
2266             if (md!=null) {
2267                 if (state.DSM) {
2268                     output.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2269                 } else
2270                     output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2271             } else
2272                 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2273             printcomma=true;
2274         }
2275
2276         if (state.DSM&&lb.isAtomic()) {
2277             if (printcomma)
2278                 output.print(", ");
2279             output.print("transrecord_t * trans");
2280             printcomma=true;
2281         }
2282
2283         if (md!=null) {
2284             /* Method */
2285             for(int i=0;i<objectparams.numPrimitives();i++) {
2286                 TempDescriptor temp=objectparams.getPrimitive(i);
2287                 if (printcomma)
2288                     output.print(", ");
2289                 printcomma=true;
2290                 if (temp.getType().isClass()||temp.getType().isArray())
2291                     output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2292                 else
2293                     output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2294             }
2295             output.println(") {");
2296         } else if (!GENERATEPRECISEGC) {
2297             /* Imprecise Task */
2298             output.println("void * parameterarray[]) {");
2299             /* Unpack variables */
2300             for(int i=0;i<objectparams.numPrimitives();i++) {
2301                 TempDescriptor temp=objectparams.getPrimitive(i);
2302                 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2303             }
2304             for(int i=0;i<fm.numTags();i++) {
2305                 TempDescriptor temp=fm.getTag(i);
2306                 int offset=i+objectparams.numPrimitives();
2307                 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2308             }
2309
2310             if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2311                 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2312         } else output.println(") {");
2313     }
2314
2315     public void generateFlatFlagActionNode(FlatMethod fm, LocalityBinding lb, FlatFlagActionNode ffan, PrintWriter output) {
2316         output.println("/* FlatFlagActionNode */");
2317
2318
2319         /* Process tag changes */
2320         Relation tagsettable=new Relation();
2321         Relation tagcleartable=new Relation();
2322
2323         Iterator tagsit=ffan.getTempTagPairs();
2324         while (tagsit.hasNext()) {
2325             TempTagPair ttp=(TempTagPair) tagsit.next();
2326             TempDescriptor objtmp=ttp.getTemp();
2327             TagDescriptor tag=ttp.getTag();
2328             TempDescriptor tagtmp=ttp.getTagTemp();
2329             boolean tagstatus=ffan.getTagChange(ttp);
2330             if (tagstatus) {
2331                 tagsettable.put(objtmp, tagtmp);
2332             } else {
2333                 tagcleartable.put(objtmp, tagtmp);
2334             }
2335         }
2336
2337
2338         Hashtable flagandtable=new Hashtable();
2339         Hashtable flagortable=new Hashtable();
2340
2341         /* Process flag changes */
2342         Iterator flagsit=ffan.getTempFlagPairs();
2343         while(flagsit.hasNext()) {
2344             TempFlagPair tfp=(TempFlagPair)flagsit.next();
2345             TempDescriptor temp=tfp.getTemp();
2346             Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2347             FlagDescriptor flag=tfp.getFlag();
2348             if (flag==null) {
2349                 //Newly allocate objects that don't set any flags case
2350                 if (flagortable.containsKey(temp)) {
2351                     throw new Error();
2352                 }
2353                 int mask=0;
2354                 flagortable.put(temp,new Integer(mask));
2355             } else {
2356                 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2357                 boolean flagstatus=ffan.getFlagChange(tfp);
2358                 if (flagstatus) {
2359                     int mask=0;
2360                     if (flagortable.containsKey(temp)) {
2361                         mask=((Integer)flagortable.get(temp)).intValue();
2362                     }
2363                     mask|=flagid;
2364                     flagortable.put(temp,new Integer(mask));
2365                 } else {
2366                     int mask=0xFFFFFFFF;
2367                     if (flagandtable.containsKey(temp)) {
2368                         mask=((Integer)flagandtable.get(temp)).intValue();
2369                     }
2370                     mask&=(0xFFFFFFFF^flagid);
2371                     flagandtable.put(temp,new Integer(mask));
2372                 }
2373             }
2374         }
2375
2376
2377         HashSet flagtagset=new HashSet();
2378         flagtagset.addAll(flagortable.keySet());
2379         flagtagset.addAll(flagandtable.keySet());
2380         flagtagset.addAll(tagsettable.keySet());
2381         flagtagset.addAll(tagcleartable.keySet());
2382
2383         Iterator ftit=flagtagset.iterator();
2384         while(ftit.hasNext()) {
2385             TempDescriptor temp=(TempDescriptor)ftit.next();
2386
2387
2388             Set tagtmps=tagcleartable.get(temp);
2389             if (tagtmps!=null) {
2390                 Iterator tagit=tagtmps.iterator();
2391                 while(tagit.hasNext()) {
2392                     TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2393                     if (GENERATEPRECISEGC)
2394                         output.println("tagclear(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2395                     else
2396                         output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2397                 }
2398             }
2399
2400             tagtmps=tagsettable.get(temp);
2401             if (tagtmps!=null) {
2402                 Iterator tagit=tagtmps.iterator();
2403                 while(tagit.hasNext()) {
2404                     TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2405                     if (GENERATEPRECISEGC)
2406                         output.println("tagset(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2407                     else
2408                         output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp, lb)+", "+generateTemp(fm,tagtmp, lb)+");");
2409                 }
2410             }
2411
2412             int ormask=0;
2413             int andmask=0xFFFFFFF;
2414
2415             if (flagortable.containsKey(temp))
2416                 ormask=((Integer)flagortable.get(temp)).intValue();
2417             if (flagandtable.containsKey(temp))
2418                 andmask=((Integer)flagandtable.get(temp)).intValue();
2419             generateFlagOrAnd(ffan, fm, lb, temp, output, ormask, andmask);
2420             generateObjectDistribute(ffan, fm, lb, temp, output);
2421         }
2422     }
2423
2424     protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp,
2425                                      PrintWriter output, int ormask, int andmask) {
2426         if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2427             output.println("flagorandinit("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2428         } else {
2429             output.println("flagorand("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2430         }
2431     }
2432
2433     protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp, PrintWriter output) {
2434         output.println("enqueueObject("+generateTemp(fm, temp, lb)+");");
2435     }
2436
2437     void generateOptionalHeader(PrintWriter headers) {
2438
2439          //GENERATE HEADERS
2440          headers.println("#include \"task.h\"\n\n");
2441          headers.println("#ifndef _OPTIONAL_STRUCT_");
2442          headers.println("#define _OPTIONAL_STRUCT_");
2443
2444          //STRUCT PREDICATEMEMBER
2445          headers.println("struct predicatemember{");
2446          headers.println("int type;");
2447          headers.println("int numdnfterms;");
2448          headers.println("int * flags;");
2449          headers.println("int numtags;");
2450          headers.println("int * tags;\n};\n\n");
2451
2452          //STRUCT OPTIONALTASKDESCRIPTOR
2453          headers.println("struct optionaltaskdescriptor{");
2454          headers.println("struct taskdescriptor * task;");
2455          headers.println("int index;");
2456          headers.println("int numenterflags;");
2457          headers.println("int * enterflags;");
2458          headers.println("int numpredicatemembers;");
2459          headers.println("struct predicatemember ** predicatememberarray;");
2460          headers.println("};\n\n");
2461
2462          //STRUCT TASKFAILURE
2463          headers.println("struct taskfailure {");
2464          headers.println("struct taskdescriptor * task;");
2465          headers.println("int index;");
2466          headers.println("int numoptionaltaskdescriptors;");
2467          headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2468
2469          //STRUCT FSANALYSISWRAPPER
2470          headers.println("struct fsanalysiswrapper{");
2471          headers.println("int  flags;");
2472          headers.println("int numtags;");
2473          headers.println("int * tags;");
2474          headers.println("int numtaskfailures;");
2475          headers.println("struct taskfailure ** taskfailurearray;");
2476          headers.println("int numoptionaltaskdescriptors;");
2477          headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2478
2479          //STRUCT CLASSANALYSISWRAPPER
2480          headers.println("struct classanalysiswrapper{");
2481          headers.println("int type;");
2482          headers.println("int numotd;");
2483          headers.println("struct optionaltaskdescriptor ** otdarray;");
2484          headers.println("int numfsanalysiswrappers;");
2485          headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
2486
2487          headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
2488
2489          Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
2490          while(taskit.hasNext()) {
2491              TaskDescriptor td=(TaskDescriptor)taskit.next();
2492              headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
2493          }
2494
2495     }
2496
2497     //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
2498     int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
2499         int predicateindex = 0;
2500         //iterate through the classes concerned by the predicate
2501         Set c_vard = predicate.vardescriptors;
2502         Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
2503         int current_slot=0;
2504
2505         for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext();){
2506             VarDescriptor vard = (VarDescriptor)vard_it.next();
2507             TypeDescriptor typed = vard.getType();
2508
2509             //generate for flags
2510             HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
2511             output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2512             int numberterms=0;
2513             if (fen_hashset!=null){
2514                 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext();){
2515                     FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
2516                     if (fen!=null) {
2517                         DNFFlag dflag=fen.getDNF();
2518                         numberterms+=dflag.size();
2519
2520                         Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
2521
2522                         for(int j=0;j<dflag.size();j++) {
2523                             if (j!=0)
2524                                 output.println(",");
2525                             Vector term=dflag.get(j);
2526                             int andmask=0;
2527                             int checkmask=0;
2528                             for(int k=0;k<term.size();k++) {
2529                                 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
2530                                 FlagDescriptor fd=dfa.getFlag();
2531                                 boolean negated=dfa.getNegated();
2532                                 int flagid=1<<((Integer)flags.get(fd)).intValue();
2533                                 andmask|=flagid;
2534                                 if (!negated)
2535                                     checkmask|=flagid;
2536                             }
2537                             output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
2538                         }
2539                     }
2540                 }
2541             }
2542             output.println("};\n");
2543
2544             //generate for tags
2545             TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
2546             output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2547             int numtags = 0;
2548             if (tagel!=null){
2549                 for(int j=0;j<tagel.numTags();j++) {
2550                     if (j!=0)
2551                         output.println(",");
2552                     TempDescriptor tmp=tagel.getTemp(j);
2553                     if (!slotnumber.containsKey(tmp)) {
2554                         Integer slotint=new Integer(current_slot++);
2555                         slotnumber.put(tmp,slotint);
2556                     }
2557                     int slot=slotnumber.get(tmp).intValue();
2558                     output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
2559                 }
2560                 numtags = tagel.numTags();
2561             }
2562             output.println("};");
2563
2564             //store the result into a predicatemember struct
2565             output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2566             output.println("/*type*/"+typed.getClassDesc().getId()+",");
2567             output.println("/* number of dnf terms */"+numberterms+",");
2568             output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2569             output.println("/* number of tag */"+numtags+",");
2570             output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2571             output.println("};\n");
2572             predicateindex++;
2573         }
2574
2575
2576         //generate an array that stores the entire predicate
2577         output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2578         for( int j = 0; j<predicateindex; j++){
2579             if( j != predicateindex-1)output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2580             else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2581         }
2582         output.println("};\n");
2583         return predicateindex;
2584     }
2585
2586
2587      void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
2588          generateOptionalHeader(headers);
2589          //GENERATE STRUCTS
2590          output.println("#include \"optionalstruct.h\"\n\n");
2591          output.println("#include \"stdlib.h\"\n");
2592
2593          HashSet processedcd = new HashSet();
2594          int maxotd=0;
2595          Enumeration e = safeexecution.keys();
2596          while (e.hasMoreElements()) {
2597              int numotd=0;
2598              //get the class
2599              ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
2600              Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp);//will be used several times
2601
2602              //Generate the struct of optionals
2603              Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2604              numotd = c_otd.size();
2605              if(maxotd<numotd) maxotd = numotd;
2606              if( !c_otd.isEmpty() ){
2607                  for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2608                      OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2609
2610                      //generate the int arrays for the predicate
2611                      Predicate predicate = otd.predicate;
2612                      int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
2613                      TreeSet<Integer> fsset=new TreeSet<Integer>();
2614                      //iterate through possible FSes corresponding to
2615                      //the state when entering
2616
2617                      for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext();){
2618                          FlagState fs = (FlagState)fses.next();
2619                          int flagid=0;
2620                          for(Iterator flags = fs.getFlags(); flags.hasNext();){
2621                              FlagDescriptor flagd = (FlagDescriptor)flags.next();
2622                              int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2623                              flagid|=id;
2624                          }
2625                          fsset.add(new Integer(flagid));
2626                          //tag information not needed because tag
2627                          //changes are not tolerated.
2628                      }
2629
2630                      output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2631                      boolean needcomma=false;
2632                      for(Iterator<Integer> it=fsset.iterator();it.hasNext();) {
2633                          if(needcomma)
2634                              output.print(", ");
2635                          output.println(it.next());
2636                      }
2637
2638                      output.println("};\n");
2639
2640
2641                      //generate optionaltaskdescriptor that actually
2642                      //includes exit fses, predicate and the task
2643                      //concerned
2644                      output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2645                      output.println("&task_"+otd.td.getSafeSymbol()+",");
2646                      output.println("/*index*/"+otd.getIndex()+",");
2647                      output.println("/*number of enter flags*/"+fsset.size()+",");
2648                      output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2649                      output.println("/*number of members */"+predicateindex+",");
2650                      output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2651                      output.println("};\n");
2652                  }
2653              } else
2654                  continue;
2655              // if there are no optionals, there is no need to build the rest of the struct
2656
2657              output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
2658              c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2659              if( !c_otd.isEmpty() ){
2660                  boolean needcomma=false;
2661                  for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2662                      OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2663                      if(needcomma)
2664                          output.println(",");
2665                      needcomma=true;
2666                      output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2667                  }
2668              }
2669              output.println("};\n");
2670
2671              //get all the possible flagstates reachable by an object
2672              Hashtable hashtbtemp = safeexecution.get(cdtemp);
2673              int fscounter = 0;
2674              TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
2675              fsts.addAll(hashtbtemp.keySet());
2676              for(Iterator fsit=fsts.iterator();fsit.hasNext();) {
2677                  FlagState fs = (FlagState)fsit.next();
2678                  fscounter++;
2679
2680                  //get the set of OptionalTaskDescriptors corresponding
2681                  HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
2682                  //iterate through the OptionalTaskDescriptors and
2683                  //store the pointers to the optionals struct (see on
2684                  //top) into an array
2685
2686                  output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
2687                  for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext();){
2688                      OptionalTaskDescriptor mm = mos.next();
2689                      if(!mos.hasNext())
2690                          output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
2691                      else
2692                          output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2693                  }
2694
2695                  output.println("};\n");
2696
2697                  //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
2698
2699                  int flagid=0;
2700                  for(Iterator flags = fs.getFlags(); flags.hasNext();){
2701                      FlagDescriptor flagd = (FlagDescriptor)flags.next();
2702                      int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2703                      flagid|=id;
2704                  }
2705
2706                  //process tag information
2707
2708                  int tagcounter = 0;
2709                  boolean first = true;
2710                  Enumeration tag_enum = fs.getTags();
2711                  output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2712                  while(tag_enum.hasMoreElements()){
2713                      tagcounter++;
2714                      TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
2715                      if(first==true)
2716                          first = false;
2717                      else
2718                          output.println(", ");
2719                      output.println("/*tagid*/"+state.getTagId(tagd));
2720                  }
2721                  output.println("};");
2722
2723                  Set<TaskIndex> tiset=sa.getTaskIndex(fs);
2724                  for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2725                      TaskIndex ti=itti.next();
2726                      if (ti.isRuntime())
2727                          continue;
2728
2729                      Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
2730
2731                      output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
2732                      boolean needcomma=false;
2733                      for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator();otdit.hasNext();) {
2734                          OptionalTaskDescriptor otd=otdit.next();
2735                          if(needcomma)
2736                              output.print(", ");
2737                          needcomma=true;
2738                          output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2739                      }
2740                      output.println("};");
2741
2742                      output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
2743                      output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
2744                      output.print(ti.getIndex()+", ");
2745                      output.print(otdset.size()+", ");
2746                      output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
2747                      output.println("};");
2748                  }
2749
2750                  tiset=sa.getTaskIndex(fs);
2751                  boolean needcomma=false;
2752                  int runtimeti=0;
2753                  output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2754                  for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2755                      TaskIndex ti=itti.next();
2756                      if (ti.isRuntime()) {
2757                          runtimeti++;
2758                          continue;
2759                      }
2760                      if (needcomma)
2761                          output.print(", ");
2762                      needcomma=true;
2763                      output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
2764                  }
2765                  output.println("};\n");
2766
2767                  //Store the result in fsanalysiswrapper
2768
2769                  output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
2770                  output.println("/*flag*/"+flagid+",");
2771                  output.println("/* number of tags*/"+tagcounter+",");
2772                  output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2773                  output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
2774                  output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2775                  output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
2776                  output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
2777                  output.println("};\n");
2778
2779              }
2780
2781              //Build the array of fsanalysiswrappers
2782              output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
2783              boolean needcomma=false;
2784              for(int i = 0; i<fscounter; i++){
2785                  if (needcomma) output.print(",");
2786                  output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
2787                  needcomma=true;
2788              }
2789              output.println("};");
2790
2791              //Build the classanalysiswrapper referring to the previous array
2792              output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
2793              output.println("/*type*/"+cdtemp.getId()+",");
2794              output.println("/*numotd*/"+numotd+",");
2795              output.println("otdarray"+cdtemp.getSafeSymbol()+",");
2796              output.println("/* number of fsanalysiswrappers */"+fscounter+",");
2797              output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
2798              processedcd.add(cdtemp);
2799          }
2800
2801          //build an array containing every classes for which code has been build
2802          output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
2803          for(int i=0;i<state.numClasses();i++) {
2804              ClassDescriptor cn=cdarray[i];
2805              if (i>0)
2806                  output.print(", ");
2807              if (processedcd.contains(cn))
2808                  output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
2809              else
2810                  output.print("NULL");
2811          }
2812          output.println("};");
2813
2814          output.println("#define MAXOTD "+maxotd);
2815          headers.println("#endif");
2816      }
2817
2818     public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
2819         Relation r=new Relation();
2820         for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator();otdit.hasNext();) {
2821             OptionalTaskDescriptor otd=otdit.next();
2822             TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
2823             r.put(ti, otd);
2824         }
2825
2826         LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
2827         for(Iterator it=r.keySet().iterator();it.hasNext();) {
2828             Set s=r.get(it.next());
2829             for(Iterator it2=s.iterator();it2.hasNext();) {
2830                 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();
2831                 l.add(otd);
2832             }
2833         }
2834
2835         return l;
2836     }
2837
2838     protected void outputTransCode(PrintWriter output) {
2839     }
2840 }
2841
2842
2843
2844
2845
2846