Robust/src/IR/Flat/BuildCode.java

   1 package IR.Flat;
   2 import IR.Tree.FlagExpressionNode;
   3 import IR.Tree.DNFFlag;
   4 import IR.Tree.DNFFlagAtom;
   5 import IR.Tree.TagExpressionList;
   6 import IR.*;
   7 import java.util.*;
   8 import java.io.*;
   9
  10 import Util.Relation;
  11 import Analysis.TaskStateAnalysis.FlagState;
  12 import Analysis.TaskStateAnalysis.FlagComparator;
  13 import Analysis.TaskStateAnalysis.OptionalTaskDescriptor;
  14 import Analysis.TaskStateAnalysis.Predicate;
  15 import Analysis.TaskStateAnalysis.SafetyAnalysis;
  16 import Analysis.TaskStateAnalysis.TaskIndex;
  17 import Analysis.Locality.LocalityAnalysis;
  18 import Analysis.Locality.LocalityBinding;
  19 import Analysis.Prefetch.*;
  20
  21 public class BuildCode {
  22     State state;
  23     Hashtable temptovar;
  24     Hashtable paramstable;
  25     Hashtable tempstable;
  26     Hashtable fieldorder;
  27     Hashtable flagorder;
  28     int tag=0;
  29     String localsprefix="___locals___";
  30     String paramsprefix="___params___";
  31     String oidstr="___nextobject___";
  32     String nextobjstr="___nextobject___";
  33     String localcopystr="___localcopy___";
  34     public static boolean GENERATEPRECISEGC=false;
  35     public static String PREFIX="";
  36     public static String arraytype="ArrayObject";
  37     public static int flagcount = 0;
  38     Virtual virtualcalls;
  39     TypeUtil typeutil;
  40     protected int maxtaskparams=0;
  41     private int maxcount=0;
  42     ClassDescriptor[] cdarray;
  43     TypeDescriptor[] arraytable;
  44     LocalityAnalysis locality;
  45     Hashtable<TempDescriptor, TempDescriptor> backuptable;
  46     Hashtable<LocalityBinding, TempDescriptor> reverttable;
  47     SafetyAnalysis sa;
  48
  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     outmethod.println("printf(\"numTransAbort= %d\\n\", numTransAbort);");
 265     outmethod.println("printf(\"numTransCommit= %d\\n\", numTransCommit);");
 266         outmethod.println("}");
 267
 268     }
 269
 270     /* This method outputs code for each task. */
 271
 272     private void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
 273         /* Compile task based program */
 274         outtaskdefs.println("#include \"task.h\"");
 275         outtaskdefs.println("#include \"methodheaders.h\"");
 276         Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
 277         while(taskit.hasNext()) {
 278             TaskDescriptor td=(TaskDescriptor)taskit.next();
 279             FlatMethod fm=state.getMethodFlat(td);
 280             generateFlatMethod(fm, null, outmethod);
 281             generateTaskDescriptor(outtaskdefs, fm, td);
 282         }
 283
 284         //Output task descriptors
 285         taskit=state.getTaskSymbolTable().getDescriptorsIterator();
 286         outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
 287         boolean first=true;
 288         while(taskit.hasNext()) {
 289             TaskDescriptor td=(TaskDescriptor)taskit.next();
 290             if (first)
 291                 first=false;
 292             else
 293                 outtaskdefs.println(",");
 294             outtaskdefs.print("&task_"+td.getSafeSymbol());
 295         }
 296         outtaskdefs.println("};");
 297
 298         outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
 299     }
 300
 301     /* This method outputs most of the methods.c file.  This includes
 302      * some standard includes and then an array with the sizes of
 303      * objets and array that stores supertype and then the code for
 304      * the Java methods.. */
 305
 306     protected void outputMethods(PrintWriter outmethod) {
 307         outmethod.println("#include \"methodheaders.h\"");
 308         outmethod.println("#include \"virtualtable.h\"");
 309         outmethod.println("#include \"runtime.h\"");
 310         if (state.DSM) {
 311             outmethod.println("#include \"localobjects.h\"");
 312         }
 313         if(state.MULTICORE) {
 314             outmethod.println("#include \"task.h\"");
 315         }
 316         if (state.THREAD||state.DSM)
 317             outmethod.println("#include <thread.h>");
 318         if (state.main!=null) {
 319             outmethod.println("#include <string.h>");
 320         }
 321         if (state.CONSCHECK) {
 322             outmethod.println("#include \"checkers.h\"");
 323         }
 324         //Store the sizes of classes & array elements
 325         generateSizeArray(outmethod);
 326
 327         //Store table of supertypes
 328         generateSuperTypeTable(outmethod);
 329
 330         //Store the layout of classes
 331         generateLayoutStructs(outmethod);
 332
 333         /* Generate code for methods */
 334         if (state.DSM) {
 335             for(Iterator<LocalityBinding> lbit=locality.getLocalityBindings().iterator();lbit.hasNext();) {
 336                 LocalityBinding lb=lbit.next();
 337                 MethodDescriptor md=lb.getMethod();
 338                 FlatMethod fm=state.getMethodFlat(md);
 339                 if (!md.getModifiers().isNative()) {
 340                         generateFlatMethod(fm, lb, outmethod);
 341                 }
 342             }
 343         } else {
 344             Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
 345             while(classit.hasNext()) {
 346                 ClassDescriptor cn=(ClassDescriptor)classit.next();
 347                 Iterator methodit=cn.getMethods();
 348                 while(methodit.hasNext()) {
 349                     /* Classify parameters */
 350                     MethodDescriptor md=(MethodDescriptor)methodit.next();
 351                     FlatMethod fm=state.getMethodFlat(md);
 352                     if (!md.getModifiers().isNative()) {
 353                         generateFlatMethod(fm, null, outmethod);
 354                     }
 355                 }
 356             }
 357         }
 358     }
 359
 360     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     protected void outputClassDeclarations(PrintWriter outclassdefs) {
 403         if (state.THREAD||state.DSM)
 404             outclassdefs.println("#include <pthread.h>");
 405         if(state.OPTIONAL)
 406             outclassdefs.println("#include \"optionalstruct.h\"");
 407         outclassdefs.println("struct "+arraytype+";");
 408         /* Start by declaring all structs */
 409         Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
 410         while(it.hasNext()) {
 411             ClassDescriptor cn=(ClassDescriptor)it.next();
 412             outclassdefs.println("struct "+cn.getSafeSymbol()+";");
 413         }
 414         outclassdefs.println("");
 415         //Print out definition for array type
 416         outclassdefs.println("struct "+arraytype+" {");
 417         outclassdefs.println("  int type;");
 418         if (state.THREAD) {
 419             outclassdefs.println("  pthread_t tid;");
 420             outclassdefs.println("  void * lockentry;");
 421             outclassdefs.println("  int lockcount;");
 422         }
 423         if (state.TASK) {
 424             outclassdefs.println("  int flag;");
 425             if(!state.MULTICORE) {
 426                 outclassdefs.println("  void * flagptr;");
 427             } else {
 428                 outclassdefs.println("  int isolate;"); // indicate if this object is shared or not
 429                 outclassdefs.println("  int version;");
 430                 outclassdefs.println("  struct ___Object___ * original;");
 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     protected void buildVirtualTables(PrintWriter outvirtual) {
 622         Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
 623         while(classit.hasNext()) {
 624             ClassDescriptor cd=(ClassDescriptor)classit.next();
 625             if (virtualcalls.getMethodCount(cd)>maxcount)
 626                 maxcount=virtualcalls.getMethodCount(cd);
 627         }
 628         MethodDescriptor[][] virtualtable=null;
 629         LocalityBinding[][] lbvirtualtable=null;
 630         if (state.DSM)
 631             lbvirtualtable=new LocalityBinding[state.numClasses()+state.numArrays()][maxcount];
 632         else
 633             virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
 634
 635         /* Fill in virtual table */
 636         classit=state.getClassSymbolTable().getDescriptorsIterator();
 637         while(classit.hasNext()) {
 638             ClassDescriptor cd=(ClassDescriptor)classit.next();
 639             if (state.DSM)
 640                 fillinRow(cd, lbvirtualtable, cd.getId());
 641             else
 642                 fillinRow(cd, virtualtable, cd.getId());
 643         }
 644
 645         ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
 646         Iterator arrayit=state.getArrayIterator();
 647         while(arrayit.hasNext()) {
 648             TypeDescriptor td=(TypeDescriptor)arrayit.next();
 649             int id=state.getArrayNumber(td);
 650             if (state.DSM)
 651                 fillinRow(objectcd, lbvirtualtable, id+state.numClasses());
 652             else
 653                 fillinRow(objectcd, virtualtable, id+state.numClasses());
 654         }
 655
 656         outvirtual.print("void * virtualtable[]={");
 657         boolean needcomma=false;
 658         for(int i=0;i<state.numClasses()+state.numArrays();i++) {
 659             for(int j=0;j<maxcount;j++) {
 660                 if (needcomma)
 661                     outvirtual.print(", ");
 662                 if (state.DSM&&lbvirtualtable[i][j]!=null) {
 663                     LocalityBinding lb=lbvirtualtable[i][j];
 664                     MethodDescriptor md=lb.getMethod();
 665                     outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
 666                 } else if (!state.DSM&&virtualtable[i][j]!=null) {
 667                     MethodDescriptor md=virtualtable[i][j];
 668                     outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
 669                 } else {
 670                     outvirtual.print("0");
 671                 }
 672                 needcomma=true;
 673             }
 674             outvirtual.println("");
 675         }
 676         outvirtual.println("};");
 677         outvirtual.close();
 678     }
 679
 680     private void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
 681         /* Get inherited methods */
 682         if (cd.getSuperDesc()!=null)
 683             fillinRow(cd.getSuperDesc(), virtualtable, rownum);
 684         /* Override them with our methods */
 685         for(Iterator it=cd.getMethods();it.hasNext();) {
 686             MethodDescriptor md=(MethodDescriptor)it.next();
 687             if (md.isStatic()||md.getReturnType()==null)
 688                 continue;
 689             int methodnum=virtualcalls.getMethodNumber(md);
 690             virtualtable[rownum][methodnum]=md;
 691         }
 692     }
 693
 694     private void fillinRow(ClassDescriptor cd, LocalityBinding[][] virtualtable, int rownum) {
 695         /* Get inherited methods */
 696         if (cd.getSuperDesc()!=null)
 697             fillinRow(cd.getSuperDesc(), virtualtable, rownum);
 698         /* Override them with our methods */
 699         if (locality.getClassBindings(cd)!=null)
 700             for(Iterator<LocalityBinding> lbit=locality.getClassBindings(cd).iterator();lbit.hasNext();) {
 701                 LocalityBinding lb=lbit.next();
 702                 MethodDescriptor md=lb.getMethod();
 703                 //Is the method static or a constructor
 704                 if (md.isStatic()||md.getReturnType()==null)
 705                     continue;
 706                 int methodnum=virtualcalls.getLocalityNumber(lb);
 707                 virtualtable[rownum][methodnum]=lb;
 708             }
 709     }
 710
 711
 712     /** Generate array that contains the sizes of class objects.  The
 713      * object allocation functions in the runtime use this
 714      * information. */
 715
 716     private void generateSizeArray(PrintWriter outclassdefs) {
 717         outclassdefs.print("int numTransAbort = 0;");
 718         outclassdefs.print("int numTransCommit = 0;");
 719         outclassdefs.print("int classsize[]={");
 720         Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
 721         cdarray=new ClassDescriptor[state.numClasses()];
 722         while(it.hasNext()) {
 723             ClassDescriptor cd=(ClassDescriptor)it.next();
 724             cdarray[cd.getId()]=cd;
 725         }
 726         boolean needcomma=false;
 727         for(int i=0;i<state.numClasses();i++) {
 728             if (needcomma)
 729                 outclassdefs.print(", ");
 730             outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
 731             needcomma=true;
 732         }
 733
 734         arraytable=new TypeDescriptor[state.numArrays()];
 735
 736         Iterator arrayit=state.getArrayIterator();
 737         while(arrayit.hasNext()) {
 738             TypeDescriptor td=(TypeDescriptor)arrayit.next();
 739             int id=state.getArrayNumber(td);
 740             arraytable[id]=td;
 741         }
 742
 743         for(int i=0;i<state.numArrays();i++) {
 744             if (needcomma)
 745                 outclassdefs.print(", ");
 746             TypeDescriptor tdelement=arraytable[i].dereference();
 747             if (tdelement.isArray()||tdelement.isClass())
 748                 outclassdefs.print("sizeof(void *)");
 749             else
 750                 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
 751             needcomma=true;
 752         }
 753
 754         outclassdefs.println("};");
 755     }
 756
 757     /** Constructs params and temp objects for each method or task.
 758      * These objects tell the compiler which temps need to be
 759      * allocated.  */
 760
 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     protected void mapFlags(ClassDescriptor cn) {
 969         ClassDescriptor sp=cn.getSuperDesc();
 970         if (sp!=null)
 971             mapFlags(sp);
 972         int max=0;
 973         if (!flagorder.containsKey(cn)) {
 974             Hashtable flags=new Hashtable();
 975             flagorder.put(cn,flags);
 976             if (sp!=null) {
 977                 Hashtable superflags=(Hashtable)flagorder.get(sp);
 978                 Iterator superflagit=superflags.keySet().iterator();
 979                 while(superflagit.hasNext()) {
 980                     FlagDescriptor fd=(FlagDescriptor)superflagit.next();
 981                     Integer number=(Integer)superflags.get(fd);
 982                     flags.put(fd, number);
 983                     if ((number.intValue()+1)>max)
 984                         max=number.intValue()+1;
 985                 }
 986             }
 987
 988             Iterator flagit=cn.getFlags();
 989             while(flagit.hasNext()) {
 990                 FlagDescriptor fd=(FlagDescriptor)flagit.next();
 991                 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
 992                     flags.put(fd, new Integer(max++));
 993             }
 994         }
 995     }
 996
 997
 998     /** This function outputs (1) structures that parameters are
 999      * passed in (when PRECISE GC is enabled) and (2) function
1000      * prototypes for the methods */
1001
1002     protected void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
1003         /* Output class structure */
1004         classdefout.println("struct "+cn.getSafeSymbol()+" {");
1005         classdefout.println("  int type;");
1006         if (state.THREAD) {
1007             classdefout.println("  pthread_t tid;");
1008             classdefout.println("  void * lockentry;");
1009             classdefout.println("  int lockcount;");
1010         }
1011
1012         if (state.TASK) {
1013             classdefout.println("  int flag;");
1014             if((!state.MULTICORE) || (cn.getSymbol().equals("TagDescriptor"))) {
1015                 classdefout.println("  void * flagptr;");
1016             } else if (state.MULTICORE){
1017                 classdefout.println("  int isolate;"); // indicate if this object is shared or not
1018                 classdefout.println("  int version;");
1019                 classdefout.println("  struct ___Object___ * original;");
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     protected Hashtable<FlatNode, Integer> assignLabels(FlatMethod fm) {
1338         HashSet tovisit=new HashSet();
1339         HashSet visited=new HashSet();
1340         int labelindex=0;
1341         Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
1342         tovisit.add(fm.getNext(0));
1343
1344         /*Assign labels first.  A node needs a label if the previous
1345          * node has two exits or this node is a join point. */
1346
1347         while(!tovisit.isEmpty()) {
1348             FlatNode fn=(FlatNode)tovisit.iterator().next();
1349             tovisit.remove(fn);
1350             visited.add(fn);
1351             for(int i=0;i<fn.numNext();i++) {
1352                 FlatNode nn=fn.getNext(i);
1353                 if(i>0) {
1354                     //1) Edge >1 of node
1355                     nodetolabel.put(nn,new Integer(labelindex++));
1356                 }
1357                 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1358                     tovisit.add(nn);
1359                 } else {
1360                     //2) Join point
1361                     nodetolabel.put(nn,new Integer(labelindex++));
1362                 }
1363             }
1364         }
1365         return nodetolabel;
1366     }
1367
1368
1369     /** Generate text string that corresponds to the TempDescriptor td. */
1370     protected String generateTemp(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1371         MethodDescriptor md=fm.getMethod();
1372         TaskDescriptor task=fm.getTask();
1373         TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1374
1375         if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1376             return td.getSafeSymbol();
1377         }
1378
1379         if (objecttemps.isLocalPtr(td)) {
1380             return localsprefix+"."+td.getSafeSymbol();
1381         }
1382
1383         if (objecttemps.isParamPtr(td)) {
1384             return paramsprefix+"->"+td.getSafeSymbol();
1385         }
1386         throw new Error();
1387     }
1388
1389     protected void generateFlatNode(FlatMethod fm, LocalityBinding lb, FlatNode fn, PrintWriter output) {
1390         switch(fn.kind()) {
1391         case FKind.FlatAtomicEnterNode:
1392             generateFlatAtomicEnterNode(fm, lb, (FlatAtomicEnterNode) fn, output);
1393             return;
1394         case FKind.FlatAtomicExitNode:
1395             generateFlatAtomicExitNode(fm, lb, (FlatAtomicExitNode) fn, output);
1396             return;
1397         case FKind.FlatGlobalConvNode:
1398             generateFlatGlobalConvNode(fm, lb, (FlatGlobalConvNode) fn, output);
1399             return;
1400         case FKind.FlatTagDeclaration:
1401             generateFlatTagDeclaration(fm, lb, (FlatTagDeclaration) fn,output);
1402             return;
1403         case FKind.FlatCall:
1404             generateFlatCall(fm, lb, (FlatCall) fn,output);
1405             return;
1406         case FKind.FlatFieldNode:
1407             generateFlatFieldNode(fm, lb, (FlatFieldNode) fn,output);
1408             return;
1409         case FKind.FlatElementNode:
1410             generateFlatElementNode(fm, lb, (FlatElementNode) fn,output);
1411             return;
1412         case FKind.FlatSetElementNode:
1413             generateFlatSetElementNode(fm, lb, (FlatSetElementNode) fn,output);
1414             return;
1415         case FKind.FlatSetFieldNode:
1416             generateFlatSetFieldNode(fm, lb, (FlatSetFieldNode) fn,output);
1417             return;
1418         case FKind.FlatNew:
1419             generateFlatNew(fm, lb, (FlatNew) fn,output);
1420             return;
1421         case FKind.FlatOpNode:
1422             generateFlatOpNode(fm, lb, (FlatOpNode) fn,output);
1423             return;
1424         case FKind.FlatCastNode:
1425             generateFlatCastNode(fm, lb, (FlatCastNode) fn,output);
1426             return;
1427         case FKind.FlatLiteralNode:
1428             generateFlatLiteralNode(fm, lb, (FlatLiteralNode) fn,output);
1429             return;
1430         case FKind.FlatReturnNode:
1431             generateFlatReturnNode(fm, lb, (FlatReturnNode) fn,output);
1432             return;
1433         case FKind.FlatNop:
1434             output.println("/* nop */");
1435             return;
1436         case FKind.FlatBackEdge:
1437             if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1438                 if(state.DSM&&locality.getAtomic(lb).get(fn).intValue()>0) {
1439                     output.println("checkcollect2(&"+localsprefix+",trans);");
1440                 } else
1441                     output.println("checkcollect(&"+localsprefix+");");
1442             } else
1443                 output.println("/* nop */");
1444             return;
1445         case FKind.FlatCheckNode:
1446             generateFlatCheckNode(fm, lb, (FlatCheckNode) fn, output);
1447             return;
1448         case FKind.FlatFlagActionNode:
1449             generateFlatFlagActionNode(fm, lb, (FlatFlagActionNode) fn, output);
1450             return;
1451         case FKind.FlatPrefetchNode:
1452             generateFlatPrefetchNode(fm,lb, (FlatPrefetchNode) fn, output);
1453             return;
1454         }
1455         throw new Error();
1456     }
1457
1458     public void generateFlatPrefetchNode(FlatMethod fm, LocalityBinding lb, FlatPrefetchNode fpn, PrintWriter output) {
1459         if (state.PREFETCH) {
1460             Vector oids = new Vector();
1461             Vector fieldoffset = new Vector();
1462             Vector endoffset = new Vector();
1463             int tuplecount = 0;  //Keeps track of number of prefetch tuples that need to be generated
1464             for(Iterator it = fpn.hspp.iterator();it.hasNext();) {
1465                 PrefetchPair pp = (PrefetchPair) it.next();
1466                 Integer statusbase = locality.getNodePreTempInfo(lb,fpn).get(pp.base);
1467                 /* Find prefetches that can generate oid */
1468                 if(statusbase == LocalityAnalysis.GLOBAL) {
1469                     generateTransCode(fm, lb, pp, oids, fieldoffset, endoffset, tuplecount, locality.getAtomic(lb).get(fpn).intValue()>0, false);
1470                     tuplecount++;
1471                 } else if (statusbase == LocalityAnalysis.LOCAL) {
1472                     generateTransCode(fm,lb,pp,oids,fieldoffset,endoffset,tuplecount,false,true);
1473                 } else {
1474                     continue;
1475                 }
1476             }
1477             if (tuplecount==0)
1478                 return;
1479             output.println("{");
1480             output.println("/* prefetch */");
1481             output.println("void * prefptr;");
1482             output.println("int tmpindex;");
1483             /*Create C code for oid array */
1484             output.print("   unsigned int oidarray_[] = {");
1485             boolean needcomma=false;
1486             for (Iterator it = oids.iterator();it.hasNext();) {
1487                 if (needcomma)
1488                     output.print(", ");
1489                 output.print(it.next());
1490                 needcomma=true;
1491             }
1492             output.println("};");
1493
1494             /*Create C code for endoffset values */
1495             output.print("   unsigned short endoffsetarry_[] = {");
1496             needcomma=false;
1497             for (Iterator it = endoffset.iterator();it.hasNext();) {
1498                 if (needcomma)
1499                     output.print(", ");
1500                 output.print(it.next());
1501                 needcomma=true;
1502             }
1503             output.println("};");
1504
1505             /*Create C code for Field Offset Values */
1506             output.print("   short fieldarry_[] = {");
1507             needcomma=false;
1508             for (Iterator it = fieldoffset.iterator();it.hasNext();) {
1509                 if (needcomma)
1510                     output.print(", ");
1511                 output.print(it.next());
1512                 needcomma=true;
1513             }
1514             output.println("};");
1515             /* make the prefetch call to Runtime */
1516             output.println("   prefetch("+tuplecount+", oidarray_, endoffsetarry_, fieldarry_);");
1517             output.println("}");
1518         }
1519     }
1520
1521     public void generateTransCode(FlatMethod fm, LocalityBinding lb,PrefetchPair pp, Vector oids, Vector fieldoffset, Vector endoffset, int tuplecount, boolean inside, boolean localbase) {
1522         short offsetcount = 0;
1523         int breakindex=0;
1524         if (inside) {
1525             breakindex=1;
1526         } else if (localbase) {
1527             for(;breakindex<pp.desc.size();breakindex++) {
1528                 Descriptor desc=pp.getDescAt(breakindex);
1529                 if (desc instanceof FieldDescriptor) {
1530                     FieldDescriptor fd=(FieldDescriptor)desc;
1531                     if (fd.isGlobal()) {
1532                         break;
1533                     }
1534                 }
1535             }
1536             breakindex++;
1537         }
1538
1539         if (breakindex>pp.desc.size()) //all local
1540             return;
1541
1542         TypeDescriptor lasttype=pp.base.getType();
1543         String basestr=generateTemp(fm, pp.base, lb);
1544         String teststr="";
1545         boolean maybenull=fm.getMethod().isStatic()||
1546             !pp.base.equals(fm.getParameter(0));
1547
1548         for(int i=0;i<breakindex;i++) {
1549             String indexcheck="";
1550
1551             Descriptor desc=pp.getDescAt(i);
1552             if (desc instanceof FieldDescriptor) {
1553                 FieldDescriptor fd=(FieldDescriptor)desc;
1554                 if (maybenull) {
1555                     if (!teststr.equals(""))
1556                         teststr+="&&";
1557                     teststr+="((prefptr="+basestr+")!=NULL)";
1558                     basestr="((struct "+lasttype.getSafeSymbol()+" *)prefptr)->"+fd.getSafeSymbol();
1559                 } else {
1560                     basestr=basestr+"->"+fd.getSafeSymbol();
1561                     maybenull=true;
1562                 }
1563                 lasttype=fd.getType();
1564             } else {
1565                 IndexDescriptor id=(IndexDescriptor)desc;
1566                 indexcheck="((tmpindex=";
1567                 for(int j=0;j<id.tddesc.size();j++) {
1568                     indexcheck+=generateTemp(fm, id.getTempDescAt(j), lb)+"+";
1569                 }
1570                 indexcheck+=id.offset+")>=0)&&(tmpindex<((struct ArrayObject *)prefptr)->___length___)";
1571
1572                 if (!teststr.equals(""))
1573                     teststr+="&&";
1574                 teststr+="((prefptr="+basestr+")!= NULL) &&"+indexcheck;
1575                 basestr="((void **)(((char *) &(((struct ArrayObject *)prefptr)->___length___))+sizeof(int)))[tmpindex]";
1576                 maybenull=true;
1577                 lasttype=lasttype.dereference();
1578             }
1579         }
1580
1581         String oid;
1582         if (teststr.equals("")) {
1583             oid="((unsigned int)"+basestr+")";
1584         } else {
1585             oid="((unsigned int)(("+teststr+")?"+basestr+":NULL))";
1586         }
1587         oids.add(oid);
1588
1589         for(int i = breakindex; i < pp.desc.size(); i++) {
1590             String newfieldoffset;
1591             Object desc = pp.getDescAt(i);
1592             if(desc instanceof FieldDescriptor) {
1593                 FieldDescriptor fd=(FieldDescriptor)desc;
1594                 newfieldoffset = new String("(unsigned int)(&(((struct "+ lasttype.getSafeSymbol()+" *)0)->"+ fd.getSafeSymbol()+ "))");
1595                 lasttype=fd.getType();
1596             } else {
1597                 newfieldoffset = "";
1598                 IndexDescriptor id=(IndexDescriptor)desc;
1599                 for(int j = 0; j < id.tddesc.size(); j++) {
1600                     newfieldoffset += generateTemp(fm, id.getTempDescAt(j), lb) + "+";
1601                 }
1602                 newfieldoffset += id.offset.toString();
1603                 lasttype=lasttype.dereference();
1604             }
1605             fieldoffset.add(newfieldoffset);
1606         }
1607
1608         int base=(tuplecount>0)?((Short)endoffset.get(tuplecount-1)).intValue():0;
1609         base+=pp.desc.size()-breakindex;
1610         endoffset.add(new Short((short)base));
1611     }
1612
1613
1614
1615     public void generateFlatGlobalConvNode(FlatMethod fm, LocalityBinding lb, FlatGlobalConvNode fgcn, PrintWriter output) {
1616             if (lb!=fgcn.getLocality())
1617                     return;
1618             /* Have to generate flat globalconv */
1619             if (fgcn.getMakePtr()) {
1620                     output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)transRead(trans, (unsigned int) "+generateTemp(fm, fgcn.getSrc(),lb)+");");
1621             } else {
1622                     /* Need to convert to OID */
1623                     output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)COMPOID("+generateTemp(fm, fgcn.getSrc(),lb)+");");
1624             }
1625     }
1626
1627     public void generateFlatAtomicEnterNode(FlatMethod fm,  LocalityBinding lb, FlatAtomicEnterNode faen, PrintWriter output) {
1628             /* Check to see if we need to generate code for this atomic */
1629             if (locality.getAtomic(lb).get(faen.getPrev(0)).intValue()>0)
1630                     return;
1631             /* Backup the temps. */
1632             for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1633                     TempDescriptor tmp=tmpit.next();
1634                     output.println(generateTemp(fm, backuptable.get(tmp),lb)+"="+generateTemp(fm,tmp,lb)+";");
1635             }
1636             output.println("goto transstart"+faen.getIdentifier()+";");
1637
1638             /******* Print code to retry aborted transaction *******/
1639             output.println("transretry"+faen.getIdentifier()+":");
1640
1641             /* Restore temps */
1642             for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1643                     TempDescriptor tmp=tmpit.next();
1644                     output.println(generateTemp(fm, tmp,lb)+"="+generateTemp(fm,backuptable.get(tmp),lb)+";");
1645             }
1646
1647             /********* Need to revert local object store ********/
1648             String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1649
1650         output.println("while ("+revertptr+") {");
1651         output.println("struct ___Object___ * tmpptr;");
1652         output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1653         output.println("REVERT_OBJ("+revertptr+");");
1654         output.println(revertptr+"=tmpptr;");
1655         output.println("}");
1656
1657         /******* Tell the runtime to start the transaction *******/
1658
1659         output.println("transstart"+faen.getIdentifier()+":");
1660         output.println("trans=transStart();");
1661     }
1662
1663     public void generateFlatAtomicExitNode(FlatMethod fm,  LocalityBinding lb, FlatAtomicExitNode faen, PrintWriter output) {
1664         /* Check to see if we need to generate code for this atomic */
1665         if (locality.getAtomic(lb).get(faen).intValue()>0)
1666             return;
1667         //store the revert list before we lose the transaction object
1668         String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1669         output.println(revertptr+"=trans->revertlist;");
1670         output.println("if (transCommit(trans)) {");
1671         /* Transaction aborts if it returns true */
1672         output.println("goto transretry"+faen.getAtomicEnter().getIdentifier()+";");
1673         output.println("} else {");
1674         /* Need to commit local object store */
1675         output.println("while ("+revertptr+") {");
1676         output.println("struct ___Object___ * tmpptr;");
1677         output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1678         output.println("COMMIT_OBJ("+revertptr+");");
1679         output.println(revertptr+"=tmpptr;");
1680         output.println("}");
1681         output.println("}");
1682     }
1683
1684     private void generateFlatCheckNode(FlatMethod fm,  LocalityBinding lb, FlatCheckNode fcn, PrintWriter output) {
1685         if (state.CONSCHECK) {
1686             String specname=fcn.getSpec();
1687             String varname="repairstate___";
1688             output.println("{");
1689             output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1690
1691             TempDescriptor[] temps=fcn.getTemps();
1692             String[] vars=fcn.getVars();
1693             for(int i=0;i<temps.length;i++) {
1694                 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i],lb)+";");
1695             }
1696
1697             output.println("if (doanalysis"+specname+"("+varname+")) {");
1698             output.println("free"+specname+"_state("+varname+");");
1699             output.println("} else {");
1700             output.println("/* Bad invariant */");
1701             output.println("free"+specname+"_state("+varname+");");
1702             output.println("abort_task();");
1703             output.println("}");
1704             output.println("}");
1705         }
1706     }
1707
1708     private void generateFlatCall(FlatMethod fm, LocalityBinding lb, FlatCall fc, PrintWriter output) {
1709         MethodDescriptor md=fc.getMethod();
1710         ParamsObject objectparams=(ParamsObject)paramstable.get(state.DSM?locality.getBinding(lb, fc):md);
1711         ClassDescriptor cn=md.getClassDesc();
1712         output.println("{");
1713         if (GENERATEPRECISEGC) {
1714             if (state.DSM) {
1715                 LocalityBinding fclb=locality.getBinding(lb, fc);
1716                 output.print("       struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1717             } else
1718                 output.print("       struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1719
1720             output.print(objectparams.numPointers());
1721             output.print(", & "+localsprefix);
1722             if (md.getThis()!=null) {
1723                 output.print(", ");
1724                 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis(),lb));
1725             }
1726             if (fc.getThis()!=null&&md.getThis()==null) {
1727                 System.out.println("WARNING!!!!!!!!!!!!");
1728                 System.out.println("Source code calls static method"+md+"on an object in "+fm.getMethod()+"!");
1729             }
1730
1731
1732             for(int i=0;i<fc.numArgs();i++) {
1733                 Descriptor var=md.getParameter(i);
1734                 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1735                 if (objectparams.isParamPtr(paramtemp)) {
1736                     TempDescriptor targ=fc.getArg(i);
1737                     output.print(", ");
1738                     TypeDescriptor td=md.getParamType(i);
1739                     if (td.isTag())
1740                         output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()  +" *)"+generateTemp(fm, targ,lb));
1741                     else
1742                         output.print("(struct "+md.getParamType(i).getSafeSymbol()  +" *)"+generateTemp(fm, targ,lb));
1743                 }
1744             }
1745             output.println("};");
1746         }
1747         output.print("       ");
1748
1749
1750         if (fc.getReturnTemp()!=null)
1751             output.print(generateTemp(fm,fc.getReturnTemp(),lb)+"=");
1752
1753         /* Do we need to do virtual dispatch? */
1754         if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
1755             //no
1756             if (state.DSM) {
1757                 LocalityBinding fclb=locality.getBinding(lb, fc);
1758                 output.print(cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1759             } else {
1760                 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1761             }
1762         } else {
1763             //yes
1764             output.print("((");
1765             if (md.getReturnType().isClass()||md.getReturnType().isArray())
1766                 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1767             else
1768                 output.print(md.getReturnType().getSafeSymbol()+" ");
1769             output.print("(*)(");
1770
1771             boolean printcomma=false;
1772             if (GENERATEPRECISEGC) {
1773                 if (state.DSM) {
1774                     LocalityBinding fclb=locality.getBinding(lb, fc);
1775                     output.print("struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1776                 } else
1777                     output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1778                 printcomma=true;
1779             }
1780
1781             for(int i=0;i<objectparams.numPrimitives();i++) {
1782                 TempDescriptor temp=objectparams.getPrimitive(i);
1783                 if (printcomma)
1784                     output.print(", ");
1785                 printcomma=true;
1786                 if (temp.getType().isClass()||temp.getType().isArray())
1787                     output.print("struct " + temp.getType().getSafeSymbol()+" * ");
1788                 else
1789                     output.print(temp.getType().getSafeSymbol());
1790             }
1791
1792             if (state.DSM&&locality.getBinding(lb,fc).isAtomic()&&!fc.getMethod().getModifiers().isNative()) {
1793                 LocalityBinding fclb=locality.getBinding(lb, fc);
1794                 if (printcomma)
1795                     output.print(", ");
1796                 output.print("transrecord_t *");
1797                 printcomma=true;
1798             }
1799
1800             if (state.DSM) {
1801                 LocalityBinding fclb=locality.getBinding(lb, fc);
1802                 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getLocalityNumber(fclb)+"])");
1803             } else
1804                 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
1805         }
1806
1807         output.print("(");
1808         boolean needcomma=false;
1809         if (GENERATEPRECISEGC) {
1810             output.print("&__parameterlist__");
1811             needcomma=true;
1812         }
1813
1814         if (state.DSM&&locality.getBinding(lb,fc).isAtomic()&&!fc.getMethod().getModifiers().isNative()) {
1815             if (needcomma)
1816                 output.print(",");
1817             output.print("trans");
1818             needcomma=true;
1819         }
1820
1821         if (!GENERATEPRECISEGC) {
1822             if (fc.getThis()!=null) {
1823                 TypeDescriptor ptd=md.getThis().getType();
1824                 if (needcomma)
1825                     output.print(",");
1826                 if (ptd.isClass()&&!ptd.isArray())
1827                     output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1828                 output.print(generateTemp(fm,fc.getThis(),lb));
1829                 needcomma=true;
1830             }
1831         }
1832
1833         for(int i=0;i<fc.numArgs();i++) {
1834             Descriptor var=md.getParameter(i);
1835             TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1836             if (objectparams.isParamPrim(paramtemp)) {
1837                 TempDescriptor targ=fc.getArg(i);
1838                 if (needcomma)
1839                     output.print(", ");
1840
1841                 TypeDescriptor ptd=md.getParamType(i);
1842                 if (ptd.isClass()&&!ptd.isArray())
1843                     output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1844                 output.print(generateTemp(fm, targ,lb));
1845                 needcomma=true;
1846             }
1847         }
1848         output.println(");");
1849         output.println("   }");
1850     }
1851
1852     private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
1853         Set subclasses=typeutil.getSubClasses(thiscd);
1854         if (subclasses==null)
1855             return true;
1856         for(Iterator classit=subclasses.iterator();classit.hasNext();) {
1857             ClassDescriptor cd=(ClassDescriptor)classit.next();
1858             Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
1859             for(Iterator matchit=possiblematches.iterator();matchit.hasNext();) {
1860                 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
1861                 if (md.matches(matchmd))
1862                     return false;
1863             }
1864         }
1865         return true;
1866     }
1867
1868     private void generateFlatFieldNode(FlatMethod fm, LocalityBinding lb, FlatFieldNode ffn, PrintWriter output) {
1869         if (state.DSM) {
1870             Integer status=locality.getNodePreTempInfo(lb,ffn).get(ffn.getSrc());
1871             if (status==LocalityAnalysis.GLOBAL) {
1872                 String field=ffn.getField().getSafeSymbol();
1873                 String src=generateTemp(fm, ffn.getSrc(),lb);
1874                 String dst=generateTemp(fm, ffn.getDst(),lb);
1875
1876                 if (ffn.getField().getType().isPtr()) {
1877
1878                     //TODO: Uncomment this when we have runtime support
1879                     //if (ffn.getSrc()==ffn.getDst()) {
1880                     //output.println("{");
1881                     //output.println("void * temp="+src+";");
1882                     //output.println("if (temp&0x1) {");
1883                     //output.println("temp=(void *) transRead(trans, (unsigned int) temp);");
1884                     //output.println(src+"->"+field+"="+temp+";");
1885                     //output.println("}");
1886                     //output.println(dst+"=temp;");
1887                     //output.println("}");
1888                     //} else {
1889                     output.println(dst+"="+ src +"->"+field+ ";");
1890                     //output.println("if ("+dst+"&0x1) {");
1891                     output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1892                     //output.println(src+"->"+field+"="+src+"->"+field+";");
1893                     //output.println("}");
1894                     //}
1895                 } else {
1896                     output.println(dst+"="+ src+"->"+field+";");
1897                 }
1898             } else if (status==LocalityAnalysis.LOCAL) {
1899                 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1900             } else if (status==LocalityAnalysis.EITHER) {
1901                 //Code is reading from a null pointer
1902                 output.println("if ("+generateTemp(fm, ffn.getSrc(),lb)+") {");
1903                 output.println("#ifndef RAW");
1904                 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
1905                 output.println("#endif");
1906                 //This should throw a suitable null pointer error
1907                 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1908             } else
1909                 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
1910         } else
1911             output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1912     }
1913
1914
1915     private void generateFlatSetFieldNode(FlatMethod fm, LocalityBinding lb, FlatSetFieldNode fsfn, PrintWriter output) {
1916         if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
1917             throw new Error("Can't set array length");
1918         if (state.DSM && locality.getAtomic(lb).get(fsfn).intValue()>0) {
1919             Integer statussrc=locality.getNodePreTempInfo(lb,fsfn).get(fsfn.getSrc());
1920             Integer statusdst=locality.getNodeTempInfo(lb).get(fsfn).get(fsfn.getDst());
1921             boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
1922
1923             String src=generateTemp(fm,fsfn.getSrc(),lb);
1924             String dst=generateTemp(fm,fsfn.getDst(),lb);
1925             if (srcglobal) {
1926                 output.println("{");
1927                 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
1928             }
1929             if (statusdst.equals(LocalityAnalysis.GLOBAL)) {
1930                 String glbdst=dst;
1931                 //mark it dirty
1932                 output.println("*((unsigned int *)&("+dst+"->___localcopy___))|=DIRTY;");
1933                 if (srcglobal) {
1934                     output.println("*((unsigned int *)&("+glbdst+"->"+ fsfn.getField().getSafeSymbol()+"))=srcoid;");
1935                 } else
1936                     output.println(glbdst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1937             } else if (statusdst.equals(LocalityAnalysis.LOCAL)) {
1938                 /** Check if we need to copy */
1939                 output.println("if(!"+dst+"->"+localcopystr+") {");
1940                 /* Link object into list */
1941                 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1942                 output.println(revertptr+"=trans->revertlist;");
1943                 if (GENERATEPRECISEGC)
1944                     output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
1945                 else
1946                     output.println("COPY_OBJ("+dst+");");
1947                 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
1948                 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
1949                 output.println("}");
1950                 if (srcglobal)
1951                     output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
1952                 else
1953                     output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1954             } else if (statusdst.equals(LocalityAnalysis.EITHER)) {
1955                 //writing to a null...bad
1956                 output.println("if ("+dst+") {");
1957                 output.println("#ifndef RAW");
1958                 output.println("printf(\"BIG ERROR 2\\n\");exit(-1);}");
1959                 output.println("#endif");
1960                 if (srcglobal)
1961                     output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
1962                 else
1963                     output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1964             }
1965             if (srcglobal) {
1966                 output.println("}");
1967             }
1968         } else {
1969             output.println(generateTemp(fm, fsfn.getDst(),lb)+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc(),lb)+";");
1970         }
1971     }
1972
1973     private void generateFlatElementNode(FlatMethod fm, LocalityBinding lb, FlatElementNode fen, PrintWriter output) {
1974         TypeDescriptor elementtype=fen.getSrc().getType().dereference();
1975         String type="";
1976
1977         if (elementtype.isArray()||elementtype.isClass())
1978             type="void *";
1979         else
1980             type=elementtype.getSafeSymbol()+" ";
1981
1982         if (fen.needsBoundsCheck()) {
1983             output.println("if ("+generateTemp(fm, fen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fen.getIndex(),lb)+" >= "+generateTemp(fm,fen.getSrc(),lb) + "->___length___)");
1984             output.println("failedboundschk();");
1985         }
1986         if (state.DSM) {
1987             Integer status=locality.getNodePreTempInfo(lb,fen).get(fen.getSrc());
1988             if (status==LocalityAnalysis.GLOBAL) {
1989                 String dst=generateTemp(fm, fen.getDst(),lb);
1990
1991                 if (elementtype.isPtr()) {
1992                     output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
1993                     output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1994                 } else {
1995                     output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
1996                 }
1997             } else if (status==LocalityAnalysis.LOCAL) {
1998                 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
1999             } else if (status==LocalityAnalysis.EITHER) {
2000                 //Code is reading from a null pointer
2001                 output.println("if ("+generateTemp(fm, fen.getSrc(),lb)+") {");
2002                 output.println("#ifndef RAW");
2003                 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
2004                 output.println("#endif");
2005                 //This should throw a suitable null pointer error
2006                 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2007             } else
2008                 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
2009         } else {
2010             output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2011         }
2012     }
2013
2014     private void generateFlatSetElementNode(FlatMethod fm, LocalityBinding lb, FlatSetElementNode fsen, PrintWriter output) {
2015         //TODO: need dynamic check to make sure this assignment is actually legal
2016         //Because Object[] could actually be something more specific...ie. Integer[]
2017
2018         TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2019         String type="";
2020
2021         if (elementtype.isArray()||elementtype.isClass())
2022             type="void *";
2023         else
2024             type=elementtype.getSafeSymbol()+" ";
2025
2026
2027         if (fsen.needsBoundsCheck()) {
2028             output.println("if ("+generateTemp(fm, fsen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fsen.getIndex(),lb)+" >= "+generateTemp(fm,fsen.getDst(),lb) + "->___length___)");
2029             output.println("failedboundschk();");
2030         }
2031
2032         if (state.DSM && locality.getAtomic(lb).get(fsen).intValue()>0) {
2033             Integer statussrc=locality.getNodePreTempInfo(lb,fsen).get(fsen.getSrc());
2034             Integer statusdst=locality.getNodePreTempInfo(lb,fsen).get(fsen.getDst());
2035             boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
2036             boolean dstglobal=statusdst==LocalityAnalysis.GLOBAL;
2037             boolean dstlocal=statusdst==LocalityAnalysis.LOCAL;
2038
2039             if (dstglobal) {
2040                 output.println("*((unsigned int *)&("+generateTemp(fm,fsen.getDst(),lb)+"->___localcopy___))|=DIRTY;");
2041             } else if (dstlocal) {
2042                 /** Check if we need to copy */
2043                 String dst=generateTemp(fm, fsen.getDst(),lb);
2044                 output.println("if(!"+dst+"->"+localcopystr+") {");
2045                 /* Link object into list */
2046                 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2047                 output.println(revertptr+"=trans->revertlist;");
2048                 if (GENERATEPRECISEGC)
2049                     output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
2050                 else
2051                     output.println("COPY_OBJ("+dst+");");
2052                 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
2053                 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
2054                 output.println("}");
2055             } else throw new Error("Unknown array type");
2056             if (srcglobal) {
2057                 output.println("{");
2058                 String src=generateTemp(fm, fsen.getSrc(), lb);
2059                 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
2060                 output.println("((int*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]=srcoid;");
2061                 output.println("}");
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         } else
2066             output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2067     }
2068
2069     private void generateFlatNew(FlatMethod fm, LocalityBinding lb, FlatNew fn, PrintWriter output) {
2070         if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2071             //Stash pointer in case of GC
2072             String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2073             output.println(revertptr+"=trans->revertlist;");
2074         }
2075         if (fn.getType().isArray()) {
2076             int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2077             if (fn.isGlobal()) {
2078                 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarrayglobal(trans, "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2079             } else if (GENERATEPRECISEGC) {
2080                 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray(&"+localsprefix+", "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2081             } else {
2082                 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2083             }
2084         } else {
2085             if (fn.isGlobal()) {
2086                 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newglobal(trans, "+fn.getType().getClassDesc().getId()+");");
2087             } else if (GENERATEPRECISEGC) {
2088                 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new(&"+localsprefix+", "+fn.getType().getClassDesc().getId()+");");
2089             } else {
2090                 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2091             }
2092         }
2093         if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2094             String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2095             output.println("trans->revertlist="+revertptr+";");
2096         }
2097     }
2098
2099     private void generateFlatTagDeclaration(FlatMethod fm, LocalityBinding lb, FlatTagDeclaration fn, PrintWriter output) {
2100         if (GENERATEPRECISEGC) {
2101             output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag(&"+localsprefix+", "+state.getTagId(fn.getType())+");");
2102         } else {
2103             output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag("+state.getTagId(fn.getType())+");");
2104         }
2105     }
2106
2107     private void generateFlatOpNode(FlatMethod fm, LocalityBinding lb, FlatOpNode fon, PrintWriter output) {
2108         if (fon.getRight()!=null) {
2109             if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2110                 if (fon.getLeft().getType().isLong())
2111                     output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2112                 else
2113                     output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned int)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2114
2115             } else
2116                 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+fon.getOp().toString()+generateTemp(fm,fon.getRight(),lb)+";");
2117         } else if (fon.getOp().getOp()==Operation.ASSIGN)
2118             output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2119         else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2120             output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2121         else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2122             output.println(generateTemp(fm, fon.getDest(),lb)+" = -"+generateTemp(fm, fon.getLeft(),lb)+";");
2123         else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2124             output.println(generateTemp(fm, fon.getDest(),lb)+" = !"+generateTemp(fm, fon.getLeft(),lb)+";");
2125         else if (fon.getOp().getOp()==Operation.COMP)
2126             output.println(generateTemp(fm, fon.getDest(),lb)+" = ~"+generateTemp(fm, fon.getLeft(),lb)+";");
2127         else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2128             output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+"->fses==NULL;");
2129         } else
2130             output.println(generateTemp(fm, fon.getDest(),lb)+fon.getOp().toString()+generateTemp(fm, fon.getLeft(),lb)+";");
2131     }
2132
2133     private void generateFlatCastNode(FlatMethod fm, LocalityBinding lb, FlatCastNode fcn, PrintWriter output) {
2134         /* TODO: Do type check here */
2135         if (fcn.getType().isArray()) {
2136             throw new Error();
2137         } else if (fcn.getType().isClass())
2138             output.println(generateTemp(fm,fcn.getDst(),lb)+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc(),lb)+";");
2139         else
2140             output.println(generateTemp(fm,fcn.getDst(),lb)+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc(),lb)+";");
2141     }
2142
2143     private void generateFlatLiteralNode(FlatMethod fm, LocalityBinding lb, FlatLiteralNode fln, PrintWriter output) {
2144         if (fln.getValue()==null)
2145             output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2146         else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2147             if (GENERATEPRECISEGC) {
2148                 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2149                     //Stash pointer in case of GC
2150                     String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2151                     output.println(revertptr+"=trans->revertlist;");
2152                 }
2153                 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(&"+localsprefix+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2154                 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2155                     //Stash pointer in case of GC
2156                     String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2157                     output.println("trans->revertlist="+revertptr+";");
2158                 }
2159             } else {
2160                 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2161             }
2162         } else if (fln.getType().isBoolean()) {
2163             if (((Boolean)fln.getValue()).booleanValue())
2164                 output.println(generateTemp(fm, fln.getDst(),lb)+"=1;");
2165             else
2166                 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2167         } else if (fln.getType().isChar()) {
2168             String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2169             output.println(generateTemp(fm, fln.getDst(),lb)+"='"+st+"';");
2170         } else if (fln.getType().isLong()) {
2171             output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+"LL;");
2172         } else
2173             output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+";");
2174     }
2175
2176     protected void generateFlatReturnNode(FlatMethod fm, LocalityBinding lb, FlatReturnNode frn, PrintWriter output) {
2177         if (frn.getReturnTemp()!=null) {
2178             if (frn.getReturnTemp().getType().isPtr())
2179                 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2180             else
2181                 output.println("return "+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2182         } else {
2183             output.println("return;");
2184         }
2185     }
2186
2187     protected void generateFlatCondBranch(FlatMethod fm, LocalityBinding lb, FlatCondBranch fcb, String label, PrintWriter output) {
2188         output.println("if (!"+generateTemp(fm, fcb.getTest(),lb)+") goto "+label+";");
2189     }
2190
2191     /** This method generates header information for the method or
2192      * task referenced by the Descriptor des. */
2193
2194     private void generateHeader(FlatMethod fm, LocalityBinding lb, Descriptor des, PrintWriter output) {
2195         /* Print header */
2196         ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:des);
2197         MethodDescriptor md=null;
2198         TaskDescriptor task=null;
2199         if (des instanceof MethodDescriptor)
2200             md=(MethodDescriptor) des;
2201         else
2202             task=(TaskDescriptor) des;
2203
2204         ClassDescriptor cn=md!=null?md.getClassDesc():null;
2205
2206         if (md!=null&&md.getReturnType()!=null) {
2207             if (md.getReturnType().isClass()||md.getReturnType().isArray())
2208                 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2209             else
2210                 output.print(md.getReturnType().getSafeSymbol()+" ");
2211         } else
2212             //catch the constructor case
2213             output.print("void ");
2214         if (md!=null) {
2215             if (state.DSM) {
2216                 output.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2217             } else
2218                 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2219         } else
2220             output.print(task.getSafeSymbol()+"(");
2221
2222         boolean printcomma=false;
2223         if (GENERATEPRECISEGC) {
2224             if (md!=null) {
2225                 if (state.DSM) {
2226                     output.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2227                 } else
2228                     output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2229             } else
2230                 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2231             printcomma=true;
2232         }
2233
2234         if (state.DSM&&lb.isAtomic()) {
2235             if (printcomma)
2236                 output.print(", ");
2237             output.print("transrecord_t * trans");
2238             printcomma=true;
2239         }
2240
2241         if (md!=null) {
2242             /* Method */
2243             for(int i=0;i<objectparams.numPrimitives();i++) {
2244                 TempDescriptor temp=objectparams.getPrimitive(i);
2245                 if (printcomma)
2246                     output.print(", ");
2247                 printcomma=true;
2248                 if (temp.getType().isClass()||temp.getType().isArray())
2249                     output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2250                 else
2251                     output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2252             }
2253             output.println(") {");
2254         } else if (!GENERATEPRECISEGC) {
2255             /* Imprecise Task */
2256             output.println("void * parameterarray[]) {");
2257             /* Unpack variables */
2258             for(int i=0;i<objectparams.numPrimitives();i++) {
2259                 TempDescriptor temp=objectparams.getPrimitive(i);
2260                 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2261             }
2262             for(int i=0;i<fm.numTags();i++) {
2263                 TempDescriptor temp=fm.getTag(i);
2264                 int offset=i+objectparams.numPrimitives();
2265                 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2266             }
2267
2268             if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2269                 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2270         } else output.println(") {");
2271     }
2272
2273     public void generateFlatFlagActionNode(FlatMethod fm, LocalityBinding lb, FlatFlagActionNode ffan, PrintWriter output) {
2274         output.println("/* FlatFlagActionNode */");
2275
2276
2277         /* Process tag changes */
2278         Relation tagsettable=new Relation();
2279         Relation tagcleartable=new Relation();
2280
2281         Iterator tagsit=ffan.getTempTagPairs();
2282         while (tagsit.hasNext()) {
2283             TempTagPair ttp=(TempTagPair) tagsit.next();
2284             TempDescriptor objtmp=ttp.getTemp();
2285             TagDescriptor tag=ttp.getTag();
2286             TempDescriptor tagtmp=ttp.getTagTemp();
2287             boolean tagstatus=ffan.getTagChange(ttp);
2288             if (tagstatus) {
2289                 tagsettable.put(objtmp, tagtmp);
2290             } else {
2291                 tagcleartable.put(objtmp, tagtmp);
2292             }
2293         }
2294
2295
2296         Hashtable flagandtable=new Hashtable();
2297         Hashtable flagortable=new Hashtable();
2298
2299         /* Process flag changes */
2300         Iterator flagsit=ffan.getTempFlagPairs();
2301         while(flagsit.hasNext()) {
2302             TempFlagPair tfp=(TempFlagPair)flagsit.next();
2303             TempDescriptor temp=tfp.getTemp();
2304             Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2305             FlagDescriptor flag=tfp.getFlag();
2306             if (flag==null) {
2307                 //Newly allocate objects that don't set any flags case
2308                 if (flagortable.containsKey(temp)) {
2309                     throw new Error();
2310                 }
2311                 int mask=0;
2312                 flagortable.put(temp,new Integer(mask));
2313             } else {
2314                 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2315                 boolean flagstatus=ffan.getFlagChange(tfp);
2316                 if (flagstatus) {
2317                     int mask=0;
2318                     if (flagortable.containsKey(temp)) {
2319                         mask=((Integer)flagortable.get(temp)).intValue();
2320                     }
2321                     mask|=flagid;
2322                     flagortable.put(temp,new Integer(mask));
2323                 } else {
2324                     int mask=0xFFFFFFFF;
2325                     if (flagandtable.containsKey(temp)) {
2326                         mask=((Integer)flagandtable.get(temp)).intValue();
2327                     }
2328                     mask&=(0xFFFFFFFF^flagid);
2329                     flagandtable.put(temp,new Integer(mask));
2330                 }
2331             }
2332         }
2333
2334
2335         HashSet flagtagset=new HashSet();
2336         flagtagset.addAll(flagortable.keySet());
2337         flagtagset.addAll(flagandtable.keySet());
2338         flagtagset.addAll(tagsettable.keySet());
2339         flagtagset.addAll(tagcleartable.keySet());
2340
2341         Iterator ftit=flagtagset.iterator();
2342         while(ftit.hasNext()) {
2343             TempDescriptor temp=(TempDescriptor)ftit.next();
2344
2345
2346             Set tagtmps=tagcleartable.get(temp);
2347             if (tagtmps!=null) {
2348                 Iterator tagit=tagtmps.iterator();
2349                 while(tagit.hasNext()) {
2350                     TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2351                     if (GENERATEPRECISEGC)
2352                         output.println("tagclear(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2353                     else
2354                         output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2355                 }
2356             }
2357
2358             tagtmps=tagsettable.get(temp);
2359             if (tagtmps!=null) {
2360                 Iterator tagit=tagtmps.iterator();
2361                 while(tagit.hasNext()) {
2362                     TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2363                     if (GENERATEPRECISEGC)
2364                         output.println("tagset(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2365                     else
2366                         output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp, lb)+", "+generateTemp(fm,tagtmp, lb)+");");
2367                 }
2368             }
2369
2370             int ormask=0;
2371             int andmask=0xFFFFFFF;
2372
2373             if (flagortable.containsKey(temp))
2374                 ormask=((Integer)flagortable.get(temp)).intValue();
2375             if (flagandtable.containsKey(temp))
2376                 andmask=((Integer)flagandtable.get(temp)).intValue();
2377             generateFlagOrAnd(ffan, fm, lb, temp, output, ormask, andmask);
2378             generateObjectDistribute(ffan, fm, lb, temp, output);
2379         }
2380     }
2381
2382     protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp,
2383                                      PrintWriter output, int ormask, int andmask) {
2384         if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2385             output.println("flagorandinit("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2386         } else {
2387             output.println("flagorand("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2388         }
2389     }
2390
2391     protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp, PrintWriter output) {
2392         output.println("enqueueObject("+generateTemp(fm, temp, lb)+");");
2393     }
2394
2395     void generateOptionalHeader(PrintWriter headers) {
2396
2397          //GENERATE HEADERS
2398          headers.println("#include \"task.h\"\n\n");
2399          headers.println("#ifndef _OPTIONAL_STRUCT_");
2400          headers.println("#define _OPTIONAL_STRUCT_");
2401
2402          //STRUCT PREDICATEMEMBER
2403          headers.println("struct predicatemember{");
2404          headers.println("int type;");
2405          headers.println("int numdnfterms;");
2406          headers.println("int * flags;");
2407          headers.println("int numtags;");
2408          headers.println("int * tags;\n};\n\n");
2409
2410          //STRUCT OPTIONALTASKDESCRIPTOR
2411          headers.println("struct optionaltaskdescriptor{");
2412          headers.println("struct taskdescriptor * task;");
2413          headers.println("int index;");
2414          headers.println("int numenterflags;");
2415          headers.println("int * enterflags;");
2416          headers.println("int numpredicatemembers;");
2417          headers.println("struct predicatemember ** predicatememberarray;");
2418          headers.println("};\n\n");
2419
2420          //STRUCT TASKFAILURE
2421          headers.println("struct taskfailure {");
2422          headers.println("struct taskdescriptor * task;");
2423          headers.println("int index;");
2424          headers.println("int numoptionaltaskdescriptors;");
2425          headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2426
2427          //STRUCT FSANALYSISWRAPPER
2428          headers.println("struct fsanalysiswrapper{");
2429          headers.println("int  flags;");
2430          headers.println("int numtags;");
2431          headers.println("int * tags;");
2432          headers.println("int numtaskfailures;");
2433          headers.println("struct taskfailure ** taskfailurearray;");
2434          headers.println("int numoptionaltaskdescriptors;");
2435          headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2436
2437          //STRUCT CLASSANALYSISWRAPPER
2438          headers.println("struct classanalysiswrapper{");
2439          headers.println("int type;");
2440          headers.println("int numotd;");
2441          headers.println("struct optionaltaskdescriptor ** otdarray;");
2442          headers.println("int numfsanalysiswrappers;");
2443          headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
2444
2445          headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
2446
2447          Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
2448          while(taskit.hasNext()) {
2449              TaskDescriptor td=(TaskDescriptor)taskit.next();
2450              headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
2451          }
2452
2453     }
2454
2455     //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
2456     int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
2457         int predicateindex = 0;
2458         //iterate through the classes concerned by the predicate
2459         Set c_vard = predicate.vardescriptors;
2460         Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
2461         int current_slot=0;
2462
2463         for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext();){
2464             VarDescriptor vard = (VarDescriptor)vard_it.next();
2465             TypeDescriptor typed = vard.getType();
2466
2467             //generate for flags
2468             HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
2469             output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2470             int numberterms=0;
2471             if (fen_hashset!=null){
2472                 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext();){
2473                     FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
2474                     if (fen!=null) {
2475                         DNFFlag dflag=fen.getDNF();
2476                         numberterms+=dflag.size();
2477
2478                         Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
2479
2480                         for(int j=0;j<dflag.size();j++) {
2481                             if (j!=0)
2482                                 output.println(",");
2483                             Vector term=dflag.get(j);
2484                             int andmask=0;
2485                             int checkmask=0;
2486                             for(int k=0;k<term.size();k++) {
2487                                 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
2488                                 FlagDescriptor fd=dfa.getFlag();
2489                                 boolean negated=dfa.getNegated();
2490                                 int flagid=1<<((Integer)flags.get(fd)).intValue();
2491                                 andmask|=flagid;
2492                                 if (!negated)
2493                                     checkmask|=flagid;
2494                             }
2495                             output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
2496                         }
2497                     }
2498                 }
2499             }
2500             output.println("};\n");
2501
2502             //generate for tags
2503             TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
2504             output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2505             int numtags = 0;
2506             if (tagel!=null){
2507                 for(int j=0;j<tagel.numTags();j++) {
2508                     if (j!=0)
2509                         output.println(",");
2510                     TempDescriptor tmp=tagel.getTemp(j);
2511                     if (!slotnumber.containsKey(tmp)) {
2512                         Integer slotint=new Integer(current_slot++);
2513                         slotnumber.put(tmp,slotint);
2514                     }
2515                     int slot=slotnumber.get(tmp).intValue();
2516                     output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
2517                 }
2518                 numtags = tagel.numTags();
2519             }
2520             output.println("};");
2521
2522             //store the result into a predicatemember struct
2523             output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2524             output.println("/*type*/"+typed.getClassDesc().getId()+",");
2525             output.println("/* number of dnf terms */"+numberterms+",");
2526             output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2527             output.println("/* number of tag */"+numtags+",");
2528             output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2529             output.println("};\n");
2530             predicateindex++;
2531         }
2532
2533
2534         //generate an array that stores the entire predicate
2535         output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2536         for( int j = 0; j<predicateindex; j++){
2537             if( j != predicateindex-1)output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2538             else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2539         }
2540         output.println("};\n");
2541         return predicateindex;
2542     }
2543
2544
2545      void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
2546          generateOptionalHeader(headers);
2547          //GENERATE STRUCTS
2548          output.println("#include \"optionalstruct.h\"\n\n");
2549          output.println("#include \"stdlib.h\"\n");
2550
2551          HashSet processedcd = new HashSet();
2552          int maxotd=0;
2553          Enumeration e = safeexecution.keys();
2554          while (e.hasMoreElements()) {
2555              int numotd=0;
2556              //get the class
2557              ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
2558              Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp);//will be used several times
2559
2560              //Generate the struct of optionals
2561              Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2562              numotd = c_otd.size();
2563              if(maxotd<numotd) maxotd = numotd;
2564              if( !c_otd.isEmpty() ){
2565                  for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2566                      OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2567
2568                      //generate the int arrays for the predicate
2569                      Predicate predicate = otd.predicate;
2570                      int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
2571                      TreeSet<Integer> fsset=new TreeSet<Integer>();
2572                      //iterate through possible FSes corresponding to
2573                      //the state when entering
2574
2575                      for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext();){
2576                          FlagState fs = (FlagState)fses.next();
2577                          int flagid=0;
2578                          for(Iterator flags = fs.getFlags(); flags.hasNext();){
2579                              FlagDescriptor flagd = (FlagDescriptor)flags.next();
2580                              int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2581                              flagid|=id;
2582                          }
2583                          fsset.add(new Integer(flagid));
2584                          //tag information not needed because tag
2585                          //changes are not tolerated.
2586                      }
2587
2588                      output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2589                      boolean needcomma=false;
2590                      for(Iterator<Integer> it=fsset.iterator();it.hasNext();) {
2591                          if(needcomma)
2592                              output.print(", ");
2593                          output.println(it.next());
2594                      }
2595
2596                      output.println("};\n");
2597
2598
2599                      //generate optionaltaskdescriptor that actually
2600                      //includes exit fses, predicate and the task
2601                      //concerned
2602                      output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2603                      output.println("&task_"+otd.td.getSafeSymbol()+",");
2604                      output.println("/*index*/"+otd.getIndex()+",");
2605                      output.println("/*number of enter flags*/"+fsset.size()+",");
2606                      output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2607                      output.println("/*number of members */"+predicateindex+",");
2608                      output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2609                      output.println("};\n");
2610                  }
2611              } else
2612                  continue;
2613              // if there are no optionals, there is no need to build the rest of the struct
2614
2615              output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
2616              c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2617              if( !c_otd.isEmpty() ){
2618                  boolean needcomma=false;
2619                  for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2620                      OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2621                      if(needcomma)
2622                          output.println(",");
2623                      needcomma=true;
2624                      output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2625                  }
2626              }
2627              output.println("};\n");
2628
2629              //get all the possible flagstates reachable by an object
2630              Hashtable hashtbtemp = safeexecution.get(cdtemp);
2631              int fscounter = 0;
2632              TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
2633              fsts.addAll(hashtbtemp.keySet());
2634              for(Iterator fsit=fsts.iterator();fsit.hasNext();) {
2635                  FlagState fs = (FlagState)fsit.next();
2636                  fscounter++;
2637
2638                  //get the set of OptionalTaskDescriptors corresponding
2639                  HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
2640                  //iterate through the OptionalTaskDescriptors and
2641                  //store the pointers to the optionals struct (see on
2642                  //top) into an array
2643
2644                  output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
2645                  for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext();){
2646                      OptionalTaskDescriptor mm = mos.next();
2647                      if(!mos.hasNext())
2648                          output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
2649                      else
2650                          output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2651                  }
2652
2653                  output.println("};\n");
2654
2655                  //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
2656
2657                  int flagid=0;
2658                  for(Iterator flags = fs.getFlags(); flags.hasNext();){
2659                      FlagDescriptor flagd = (FlagDescriptor)flags.next();
2660                      int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2661                      flagid|=id;
2662                  }
2663
2664                  //process tag information
2665
2666                  int tagcounter = 0;
2667                  boolean first = true;
2668                  Enumeration tag_enum = fs.getTags();
2669                  output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2670                  while(tag_enum.hasMoreElements()){
2671                      tagcounter++;
2672                      TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
2673                      if(first==true)
2674                          first = false;
2675                      else
2676                          output.println(", ");
2677                      output.println("/*tagid*/"+state.getTagId(tagd));
2678                  }
2679                  output.println("};");
2680
2681                  Set<TaskIndex> tiset=sa.getTaskIndex(fs);
2682                  for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2683                      TaskIndex ti=itti.next();
2684                      if (ti.isRuntime())
2685                          continue;
2686
2687                      Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
2688
2689                      output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
2690                      boolean needcomma=false;
2691                      for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator();otdit.hasNext();) {
2692                          OptionalTaskDescriptor otd=otdit.next();
2693                          if(needcomma)
2694                              output.print(", ");
2695                          needcomma=true;
2696                          output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2697                      }
2698                      output.println("};");
2699
2700                      output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
2701                      output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
2702                      output.print(ti.getIndex()+", ");
2703                      output.print(otdset.size()+", ");
2704                      output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
2705                      output.println("};");
2706                  }
2707
2708                  tiset=sa.getTaskIndex(fs);
2709                  boolean needcomma=false;
2710                  int runtimeti=0;
2711                  output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2712                  for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2713                      TaskIndex ti=itti.next();
2714                      if (ti.isRuntime()) {
2715                          runtimeti++;
2716                          continue;
2717                      }
2718                      if (needcomma)
2719                          output.print(", ");
2720                      needcomma=true;
2721                      output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
2722                  }
2723                  output.println("};\n");
2724
2725                  //Store the result in fsanalysiswrapper
2726
2727                  output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
2728                  output.println("/*flag*/"+flagid+",");
2729                  output.println("/* number of tags*/"+tagcounter+",");
2730                  output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2731                  output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
2732                  output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2733                  output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
2734                  output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
2735                  output.println("};\n");
2736
2737              }
2738
2739              //Build the array of fsanalysiswrappers
2740              output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
2741              boolean needcomma=false;
2742              for(int i = 0; i<fscounter; i++){
2743                  if (needcomma) output.print(",");
2744                  output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
2745                  needcomma=true;
2746              }
2747              output.println("};");
2748
2749              //Build the classanalysiswrapper referring to the previous array
2750              output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
2751              output.println("/*type*/"+cdtemp.getId()+",");
2752              output.println("/*numotd*/"+numotd+",");
2753              output.println("otdarray"+cdtemp.getSafeSymbol()+",");
2754              output.println("/* number of fsanalysiswrappers */"+fscounter+",");
2755              output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
2756              processedcd.add(cdtemp);
2757          }
2758
2759          //build an array containing every classes for which code has been build
2760          output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
2761          for(int i=0;i<state.numClasses();i++) {
2762              ClassDescriptor cn=cdarray[i];
2763              if (i>0)
2764                  output.print(", ");
2765              if (processedcd.contains(cn))
2766                  output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
2767              else
2768                  output.print("NULL");
2769          }
2770          output.println("};");
2771
2772          output.println("#define MAXOTD "+maxotd);
2773          headers.println("#endif");
2774      }
2775
2776     public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
2777         Relation r=new Relation();
2778         for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator();otdit.hasNext();) {
2779             OptionalTaskDescriptor otd=otdit.next();
2780             TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
2781             r.put(ti, otd);
2782         }
2783
2784         LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
2785         for(Iterator it=r.keySet().iterator();it.hasNext();) {
2786             Set s=r.get(it.next());
2787             for(Iterator it2=s.iterator();it2.hasNext();) {
2788                 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();
2789                 l.add(otd);
2790             }
2791         }
2792
2793         return l;
2794     }
2795
2796     protected void outputTransCode(PrintWriter output) {
2797     }
2798 }
2799
2800
2801
2802
2803
2804