Robust/src/IR/Flat/BuildCode.java

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