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