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