2 import IR.Tree.FlagExpressionNode;
3 import IR.Tree.DNFFlag;
4 import IR.Tree.DNFFlagAtom;
5 import IR.Tree.TagExpressionList;
6 import IR.Tree.OffsetNode;
12 import Analysis.TaskStateAnalysis.FlagState;
13 import Analysis.TaskStateAnalysis.FlagComparator;
14 import Analysis.TaskStateAnalysis.OptionalTaskDescriptor;
15 import Analysis.TaskStateAnalysis.Predicate;
16 import Analysis.TaskStateAnalysis.SafetyAnalysis;
17 import Analysis.TaskStateAnalysis.TaskIndex;
18 import Analysis.Locality.LocalityAnalysis;
19 import Analysis.Locality.LocalityBinding;
20 import Analysis.Prefetch.*;
23 public class BuildCode {
26 Hashtable paramstable;
31 String localsprefix="___locals___";
32 String paramsprefix="___params___";
33 String oidstr="___nextobject___";
34 String nextobjstr="___nextobject___";
35 String localcopystr="___localcopy___";
36 public static boolean GENERATEPRECISEGC=false;
37 public static String PREFIX="";
38 public static String arraytype="ArrayObject";
39 public static int flagcount = 0;
42 protected int maxtaskparams=0;
43 private int maxcount=0;
44 ClassDescriptor[] cdarray;
45 TypeDescriptor[] arraytable;
46 LocalityAnalysis locality;
47 Hashtable<TempDescriptor, TempDescriptor> backuptable;
48 Hashtable<LocalityBinding, TempDescriptor> reverttable;
52 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa, PrefetchAnalysis pa) {
53 this(st, temptovar, typeutil, null, sa, pa);
56 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality, PrefetchAnalysis pa) {
57 this(st, temptovar, typeutil, locality, null, pa);
60 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality, SafetyAnalysis sa, PrefetchAnalysis pa) {
64 this.temptovar=temptovar;
65 paramstable=new Hashtable();
66 tempstable=new Hashtable();
67 fieldorder=new Hashtable();
68 flagorder=new Hashtable();
69 this.typeutil=typeutil;
70 virtualcalls=new Virtual(state,locality);
72 this.locality=locality;
73 this.backuptable=new Hashtable<TempDescriptor, TempDescriptor>();
74 this.reverttable=new Hashtable<LocalityBinding, TempDescriptor>();
78 /** The buildCode method outputs C code for all the methods. The Flat
79 * versions of the methods must already be generated and stored in
80 * the State object. */
82 public void buildCode() {
83 /* Create output streams to write to */
84 PrintWriter outclassdefs=null;
85 PrintWriter outstructs=null;
86 PrintWriter outrepairstructs=null;
87 PrintWriter outmethodheader=null;
88 PrintWriter outmethod=null;
89 PrintWriter outvirtual=null;
90 PrintWriter outtask=null;
91 PrintWriter outtaskdefs=null;
92 PrintWriter outoptionalarrays=null;
93 PrintWriter optionalheaders=null;
96 outstructs=new PrintWriter(new FileOutputStream(PREFIX+"structdefs.h"), true);
97 outmethodheader=new PrintWriter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
98 outclassdefs=new PrintWriter(new FileOutputStream(PREFIX+"classdefs.h"), true);
99 outmethod=new PrintWriter(new FileOutputStream(PREFIX+"methods.c"), true);
100 outvirtual=new PrintWriter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
102 outtask=new PrintWriter(new FileOutputStream(PREFIX+"task.h"), true);
103 outtaskdefs=new PrintWriter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
104 if (state.OPTIONAL) {
105 outoptionalarrays=new PrintWriter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
106 optionalheaders=new PrintWriter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
109 if (state.structfile!=null) {
110 outrepairstructs=new PrintWriter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
112 } catch (Exception e) {
117 /* Build the virtual dispatch tables */
118 buildVirtualTables(outvirtual);
120 /* Output includes */
121 outmethodheader.println("#ifndef METHODHEADERS_H");
122 outmethodheader.println("#define METHODHEADERS_H");
123 outmethodheader.println("#include \"structdefs.h\"");
125 outmethodheader.println("#include \"dstm.h\"");
127 /* Output Structures */
128 outputStructs(outstructs);
130 // Output the C class declarations
131 // These could mutually reference each other
132 outputClassDeclarations(outclassdefs);
134 // Output function prototypes and structures for parameters
135 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
136 while(it.hasNext()) {
137 ClassDescriptor cn=(ClassDescriptor)it.next();
138 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader);
140 outclassdefs.close();
143 /* Map flags to integers */
144 /* The runtime keeps track of flags using these integers */
145 it=state.getClassSymbolTable().getDescriptorsIterator();
146 while(it.hasNext()) {
147 ClassDescriptor cn=(ClassDescriptor)it.next();
151 generateTaskStructs(outstructs, outmethodheader);
153 /* Outputs generic task structures if this is a task
155 outputTaskTypes(outtask);
158 /* Build the actual methods */
159 outputMethods(outmethod);
162 /* Output code for tasks */
163 outputTaskCode(outtaskdefs, outmethod);
165 /* Record maximum number of task parameters */
166 outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
167 } else if (state.main!=null) {
168 /* Generate main method */
169 outputMainMethod(outmethod);
172 /* Generate information for task with optional parameters */
173 if (state.TASK&&state.OPTIONAL) {
174 generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
175 outoptionalarrays.close();
178 /* Output structure definitions for repair tool */
179 if (state.structfile!=null) {
180 buildRepairStructs(outrepairstructs);
181 outrepairstructs.close();
185 outmethodheader.println("#endif");
186 outmethodheader.close();
188 outstructs.println("#endif");
192 /* This code just generates the main C method for java programs.
193 * The main C method packs up the arguments into a string array
194 * and passes it to the java main method. */
196 private void outputMainMethod(PrintWriter outmethod) {
197 outmethod.println("int main(int argc, const char *argv[]) {");
198 outmethod.println(" int i;");
199 outmethod.println("#ifdef TRANSSTATS \n");
200 outmethod.println("handle();\n");
201 outmethod.println("#endif\n");
202 if (state.THREAD||state.DSM) {
203 outmethod.println("initializethreads();");
206 outmethod.println("if (dstmStartup(argv[1])) {");
207 if (GENERATEPRECISEGC) {
208 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-2);");
210 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-2);");
213 if (GENERATEPRECISEGC) {
214 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
216 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
220 outmethod.println(" for(i=2;i<argc;i++) {");
222 outmethod.println(" for(i=1;i<argc;i++) {");
223 outmethod.println(" int length=strlen(argv[i]);");
224 if (GENERATEPRECISEGC) {
225 outmethod.println(" struct ___String___ *newstring=NewString(NULL, argv[i], length);");
227 outmethod.println(" struct ___String___ *newstring=NewString(argv[i], length);");
230 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-2]=newstring;");
232 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
233 outmethod.println(" }");
236 MethodDescriptor md=typeutil.getMain();
237 ClassDescriptor cd=typeutil.getMainClass();
239 outmethod.println(" {");
240 if (GENERATEPRECISEGC) {
242 outmethod.print(" struct "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
244 outmethod.print(" struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
245 outmethod.println("1, NULL,"+"stringarray};");
247 outmethod.println(" "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
249 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
252 outmethod.println(" "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
254 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
256 outmethod.println(" }");
259 outmethod.println("}");
262 if (state.THREAD||state.DSM) {
263 outmethod.println("pthread_mutex_lock(&gclistlock);");
264 outmethod.println("threadcount--;");
265 outmethod.println("pthread_cond_signal(&gccond);");
266 outmethod.println("pthread_mutex_unlock(&gclistlock);");
268 outmethod.println("pthread_exit(NULL);");
271 outmethod.println("#ifdef TRANSSTATS \n");
272 outmethod.println("printf(\"****** Transaction Stats ******\\n\");");
273 outmethod.println("printf(\"numTransAbort= %d\\n\", numTransAbort);");
274 outmethod.println("printf(\"numTransCommit= %d\\n\", numTransCommit);");
275 outmethod.println("printf(\"nchashSearch= %d\\n\", nchashSearch);");
276 outmethod.println("printf(\"nmhashSearch= %d\\n\", nmhashSearch);");
277 outmethod.println("printf(\"nprehashSearch= %d\\n\", nprehashSearch);");
278 outmethod.println("printf(\"nRemoteReadSend= %d\\n\", nRemoteSend);");
279 outmethod.println("printf(\"nSoftAbort= %d\\n\", nSoftAbort);");
280 outmethod.println("printf(\"bytesSent= %d\\n\", bytesSent);");
281 outmethod.println("printf(\"bytesRecv= %d\\n\", bytesRecv);");
282 outmethod.println("#endif\n");
283 outmethod.println("}");
287 /* This method outputs code for each task. */
289 private void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
290 /* Compile task based program */
291 outtaskdefs.println("#include \"task.h\"");
292 outtaskdefs.println("#include \"methodheaders.h\"");
293 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
294 while(taskit.hasNext()) {
295 TaskDescriptor td=(TaskDescriptor)taskit.next();
296 FlatMethod fm=state.getMethodFlat(td);
297 generateFlatMethod(fm, null, outmethod);
298 generateTaskDescriptor(outtaskdefs, fm, td);
301 //Output task descriptors
302 taskit=state.getTaskSymbolTable().getDescriptorsIterator();
303 outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
305 while(taskit.hasNext()) {
306 TaskDescriptor td=(TaskDescriptor)taskit.next();
310 outtaskdefs.println(",");
311 outtaskdefs.print("&task_"+td.getSafeSymbol());
313 outtaskdefs.println("};");
315 outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
318 /* This method outputs most of the methods.c file. This includes
319 * some standard includes and then an array with the sizes of
320 * objets and array that stores supertype and then the code for
321 * the Java methods.. */
323 protected void outputMethods(PrintWriter outmethod) {
324 outmethod.println("#include \"methodheaders.h\"");
325 outmethod.println("#include \"virtualtable.h\"");
326 outmethod.println("#include \"runtime.h\"");
328 outmethod.println("#include \"addPrefetchEnhance.h\"");
329 outmethod.println("#include \"localobjects.h\"");
331 if(state.MULTICORE) {
332 outmethod.println("#include \"task.h\"");
334 if (state.THREAD||state.DSM)
335 outmethod.println("#include <thread.h>");
336 if (state.main!=null) {
337 outmethod.println("#include <string.h>");
339 if (state.CONSCHECK) {
340 outmethod.println("#include \"checkers.h\"");
342 //Store the sizes of classes & array elements
343 generateSizeArray(outmethod);
345 //Store table of supertypes
346 generateSuperTypeTable(outmethod);
348 //Store the layout of classes
349 generateLayoutStructs(outmethod);
351 /* Generate code for methods */
353 for(Iterator<LocalityBinding> lbit=locality.getLocalityBindings().iterator(); lbit.hasNext();) {
354 LocalityBinding lb=lbit.next();
355 MethodDescriptor md=lb.getMethod();
356 FlatMethod fm=state.getMethodFlat(md);
357 if (!md.getModifiers().isNative()) {
358 generateFlatMethod(fm, lb, outmethod);
362 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
363 while(classit.hasNext()) {
364 ClassDescriptor cn=(ClassDescriptor)classit.next();
365 Iterator methodit=cn.getMethods();
366 while(methodit.hasNext()) {
367 /* Classify parameters */
368 MethodDescriptor md=(MethodDescriptor)methodit.next();
369 FlatMethod fm=state.getMethodFlat(md);
370 if (!md.getModifiers().isNative()) {
371 generateFlatMethod(fm, null, outmethod);
378 protected void outputStructs(PrintWriter outstructs) {
379 outstructs.println("#ifndef STRUCTDEFS_H");
380 outstructs.println("#define STRUCTDEFS_H");
381 outstructs.println("#include \"classdefs.h\"");
383 /* Output #defines that the runtime uses to determine type
384 * numbers for various objects it needs */
385 outstructs.println("#define MAXCOUNT "+maxcount);
387 LocalityBinding lb=new LocalityBinding(typeutil.getRun(), false);
388 lb.setGlobalThis(LocalityAnalysis.GLOBAL);
389 outstructs.println("#define RUNMETHOD "+virtualcalls.getLocalityNumber(lb));
392 outstructs.println("#define STRINGARRAYTYPE "+
393 (state.getArrayNumber(
394 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
396 outstructs.println("#define OBJECTARRAYTYPE "+
397 (state.getArrayNumber(
398 (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
401 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
402 outstructs.println("#define CHARARRAYTYPE "+
403 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
405 outstructs.println("#define BYTEARRAYTYPE "+
406 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
408 outstructs.println("#define BYTEARRAYARRAYTYPE "+
409 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
411 outstructs.println("#define NUMCLASSES "+state.numClasses());
413 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
414 outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
415 outstructs.println("#define TAGARRAYTYPE "+
416 (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
420 protected void outputClassDeclarations(PrintWriter outclassdefs) {
421 if (state.THREAD||state.DSM)
422 outclassdefs.println("#include <pthread.h>");
424 outclassdefs.println("#include \"optionalstruct.h\"");
425 outclassdefs.println("struct "+arraytype+";");
426 /* Start by declaring all structs */
427 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
428 while(it.hasNext()) {
429 ClassDescriptor cn=(ClassDescriptor)it.next();
430 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
432 outclassdefs.println("");
433 //Print out definition for array type
434 outclassdefs.println("struct "+arraytype+" {");
435 outclassdefs.println(" int type;");
437 outclassdefs.println(" pthread_t tid;");
438 outclassdefs.println(" void * lockentry;");
439 outclassdefs.println(" int lockcount;");
442 outclassdefs.println(" int flag;");
443 if(!state.MULTICORE) {
444 outclassdefs.println(" void * flagptr;");
446 outclassdefs.println(" int isolate;"); // indicate if this object is shared or not
447 outclassdefs.println(" int version;");
448 outclassdefs.println(" struct ___Object___ * original;");
449 //outclassdefs.println(" int numlocks;"); // array for locks
450 outclassdefs.println(" int * lock;");
453 outclassdefs.println(" int numfses;");
454 outclassdefs.println(" int * fses;");
457 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs);
459 outclassdefs.println(" int ___length___;");
460 outclassdefs.println("};\n");
461 outclassdefs.println("extern int classsize[];");
462 outclassdefs.println("extern int hasflags[];");
463 outclassdefs.println("extern unsigned int * pointerarray[];");
464 outclassdefs.println("extern int supertypes[];");
467 /** Prints out definitions for generic task structures */
469 private void outputTaskTypes(PrintWriter outtask) {
470 outtask.println("#ifndef _TASK_H");
471 outtask.println("#define _TASK_H");
472 outtask.println("struct parameterdescriptor {");
473 outtask.println("int type;");
474 outtask.println("int numberterms;");
475 outtask.println("int *intarray;");
476 outtask.println("void * queue;");
477 outtask.println("int numbertags;");
478 outtask.println("int *tagarray;");
479 outtask.println("};");
481 outtask.println("struct taskdescriptor {");
482 outtask.println("void * taskptr;");
483 outtask.println("int numParameters;");
484 outtask.println(" int numTotal;");
485 outtask.println("struct parameterdescriptor **descriptorarray;");
486 outtask.println("char * name;");
487 outtask.println("};");
488 outtask.println("extern struct taskdescriptor * taskarray[];");
489 outtask.println("extern numtasks;");
490 outtask.println("#endif");
494 private void buildRepairStructs(PrintWriter outrepairstructs) {
495 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
496 while(classit.hasNext()) {
497 ClassDescriptor cn=(ClassDescriptor)classit.next();
498 outrepairstructs.println("structure "+cn.getSymbol()+" {");
499 outrepairstructs.println(" int __type__;");
501 outrepairstructs.println(" int __flag__;");
502 if(!state.MULTICORE) {
503 outrepairstructs.println(" int __flagptr__;");
506 printRepairStruct(cn, outrepairstructs);
507 outrepairstructs.println("}\n");
510 for(int i=0; i<state.numArrays(); i++) {
511 TypeDescriptor tdarray=arraytable[i];
512 TypeDescriptor tdelement=tdarray.dereference();
513 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
514 outrepairstructs.println(" int __type__;");
515 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
516 outrepairstructs.println(" int length;");
518 // Need to add support to repair tool for this
519 if (tdelement.isClass()||tdelement.isArray())
520 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" * elem[this.length];");
522 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" elem[this.length];");
524 outrepairstructs.println("}\n");
528 private void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
529 ClassDescriptor sp=cn.getSuperDesc();
531 printRepairStruct(sp, output);
533 Vector fields=(Vector)fieldorder.get(cn);
535 for(int i=0; i<fields.size(); i++) {
536 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
537 if (fd.getType().isArray()) {
538 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
539 } else if (fd.getType().isClass())
540 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
541 else if (fd.getType().isFloat())
542 output.println(" int "+fd.getSymbol()+"; /* really float */");
544 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
548 /** This method outputs TaskDescriptor information */
549 private void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
550 for (int i=0; i<task.numParameters(); i++) {
551 VarDescriptor param_var=task.getParameter(i);
552 TypeDescriptor param_type=task.getParamType(i);
553 FlagExpressionNode param_flag=task.getFlag(param_var);
554 TagExpressionList param_tag=task.getTag(param_var);
557 if (param_flag==null) {
558 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
559 output.println("0x0, 0x0 };");
562 DNFFlag dflag=param_flag.getDNF();
563 dnfterms=dflag.size();
565 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
566 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
567 for(int j=0; j<dflag.size(); j++) {
570 Vector term=dflag.get(j);
573 for(int k=0; k<term.size(); k++) {
574 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
575 FlagDescriptor fd=dfa.getFlag();
576 boolean negated=dfa.getNegated();
577 int flagid=1<<((Integer)flags.get(fd)).intValue();
582 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
584 output.println("};");
587 output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
588 //BUG...added next line to fix, test with any task program
590 for(int j=0; j<param_tag.numTags(); j++) {
593 /* for each tag we need */
594 /* which slot it is */
595 /* what type it is */
596 TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
597 TempDescriptor tmp=param_tag.getTemp(j);
598 int slot=fm.getTagInt(tmp);
599 output.println(slot+", "+state.getTagId(tvd.getTag()));
601 output.println("};");
603 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
604 output.println("/* type */"+param_type.getClassDesc().getId()+",");
605 output.println("/* number of DNF terms */"+dnfterms+",");
606 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
607 output.println("0,");
608 //BUG, added next line to fix and else statement...test
609 //with any task program
611 output.println("/* number of tags */"+param_tag.numTags()+",");
613 output.println("/* number of tags */ 0,");
614 output.println("parametertag_"+i+"_"+task.getSafeSymbol());
615 output.println("};");
619 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
620 for (int i=0; i<task.numParameters(); i++) {
623 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
625 output.println("};");
627 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
628 output.println("&"+task.getSafeSymbol()+",");
629 output.println("/* number of parameters */" +task.numParameters() + ",");
630 int numtotal=task.numParameters()+fm.numTags();
631 output.println("/* number total parameters */" +numtotal + ",");
632 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
633 output.println("\""+task.getSymbol()+"\"");
634 output.println("};");
638 /** The buildVirtualTables method outputs the virtual dispatch
639 * tables for methods. */
641 protected void buildVirtualTables(PrintWriter outvirtual) {
642 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
643 while(classit.hasNext()) {
644 ClassDescriptor cd=(ClassDescriptor)classit.next();
645 if (virtualcalls.getMethodCount(cd)>maxcount)
646 maxcount=virtualcalls.getMethodCount(cd);
648 MethodDescriptor[][] virtualtable=null;
649 LocalityBinding[][] lbvirtualtable=null;
651 lbvirtualtable=new LocalityBinding[state.numClasses()+state.numArrays()][maxcount];
653 virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
655 /* Fill in virtual table */
656 classit=state.getClassSymbolTable().getDescriptorsIterator();
657 while(classit.hasNext()) {
658 ClassDescriptor cd=(ClassDescriptor)classit.next();
660 fillinRow(cd, lbvirtualtable, cd.getId());
662 fillinRow(cd, virtualtable, cd.getId());
665 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
666 Iterator arrayit=state.getArrayIterator();
667 while(arrayit.hasNext()) {
668 TypeDescriptor td=(TypeDescriptor)arrayit.next();
669 int id=state.getArrayNumber(td);
671 fillinRow(objectcd, lbvirtualtable, id+state.numClasses());
673 fillinRow(objectcd, virtualtable, id+state.numClasses());
676 outvirtual.print("void * virtualtable[]={");
677 boolean needcomma=false;
678 for(int i=0; i<state.numClasses()+state.numArrays(); i++) {
679 for(int j=0; j<maxcount; j++) {
681 outvirtual.print(", ");
682 if (state.DSM&&lbvirtualtable[i][j]!=null) {
683 LocalityBinding lb=lbvirtualtable[i][j];
684 MethodDescriptor md=lb.getMethod();
685 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
686 } else if (!state.DSM&&virtualtable[i][j]!=null) {
687 MethodDescriptor md=virtualtable[i][j];
688 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
690 outvirtual.print("0");
694 outvirtual.println("");
696 outvirtual.println("};");
700 private void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
701 /* Get inherited methods */
702 if (cd.getSuperDesc()!=null)
703 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
704 /* Override them with our methods */
705 for(Iterator it=cd.getMethods(); it.hasNext();) {
706 MethodDescriptor md=(MethodDescriptor)it.next();
707 if (md.isStatic()||md.getReturnType()==null)
709 int methodnum=virtualcalls.getMethodNumber(md);
710 virtualtable[rownum][methodnum]=md;
714 private void fillinRow(ClassDescriptor cd, LocalityBinding[][] virtualtable, int rownum) {
715 /* Get inherited methods */
716 if (cd.getSuperDesc()!=null)
717 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
718 /* Override them with our methods */
719 if (locality.getClassBindings(cd)!=null)
720 for(Iterator<LocalityBinding> lbit=locality.getClassBindings(cd).iterator(); lbit.hasNext();) {
721 LocalityBinding lb=lbit.next();
722 MethodDescriptor md=lb.getMethod();
723 //Is the method static or a constructor
724 if (md.isStatic()||md.getReturnType()==null)
726 int methodnum=virtualcalls.getLocalityNumber(lb);
727 virtualtable[rownum][methodnum]=lb;
732 /** Generate array that contains the sizes of class objects. The
733 * object allocation functions in the runtime use this
736 private void generateSizeArray(PrintWriter outclassdefs) {
737 outclassdefs.print("extern struct prefetchCountStats * evalPrefetch;\n");
738 outclassdefs.print("#ifdef TRANSSTATS \n");
739 outclassdefs.print("extern int numTransAbort;\n");
740 outclassdefs.print("extern int numTransCommit;\n");
741 outclassdefs.print("extern int nchashSearch;\n");
742 outclassdefs.print("extern int nmhashSearch;\n");
743 outclassdefs.print("extern int nprehashSearch;\n");
744 outclassdefs.print("extern int nRemoteSend;\n");
745 outclassdefs.print("extern int nSoftAbort;\n");
746 outclassdefs.print("extern int bytesSent;\n");
747 outclassdefs.print("extern int bytesRecv;\n");
748 outclassdefs.print("extern void handle();\n");
749 outclassdefs.print("#endif\n");
750 outclassdefs.print("int numprefetchsites = " + pa.prefetchsiteid + ";\n");
752 outclassdefs.print("int classsize[]={");
753 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
754 cdarray=new ClassDescriptor[state.numClasses()];
755 while(it.hasNext()) {
756 ClassDescriptor cd=(ClassDescriptor)it.next();
757 cdarray[cd.getId()]=cd;
759 boolean needcomma=false;
760 for(int i=0; i<state.numClasses(); i++) {
762 outclassdefs.print(", ");
763 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
767 arraytable=new TypeDescriptor[state.numArrays()];
769 Iterator arrayit=state.getArrayIterator();
770 while(arrayit.hasNext()) {
771 TypeDescriptor td=(TypeDescriptor)arrayit.next();
772 int id=state.getArrayNumber(td);
776 for(int i=0; i<state.numArrays(); i++) {
778 outclassdefs.print(", ");
779 TypeDescriptor tdelement=arraytable[i].dereference();
780 if (tdelement.isArray()||tdelement.isClass())
781 outclassdefs.print("sizeof(void *)");
783 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
787 outclassdefs.println("};");
790 /** Constructs params and temp objects for each method or task.
791 * These objects tell the compiler which temps need to be
794 protected void generateTempStructs(FlatMethod fm, LocalityBinding lb) {
795 MethodDescriptor md=fm.getMethod();
796 TaskDescriptor task=fm.getTask();
797 Set<TempDescriptor> saveset=lb!=null ? locality.getTempSet(lb) : null;
798 ParamsObject objectparams=md!=null ? new ParamsObject(md,tag++) : new ParamsObject(task, tag++);
801 paramstable.put(lb, objectparams);
803 paramstable.put(md, objectparams);
805 paramstable.put(task, objectparams);
807 for(int i=0; i<fm.numParameters(); i++) {
808 TempDescriptor temp=fm.getParameter(i);
809 TypeDescriptor type=temp.getType();
810 if (type.isPtr()&&GENERATEPRECISEGC)
811 objectparams.addPtr(temp);
813 objectparams.addPrim(temp);
814 if(lb!=null&&saveset.contains(temp)) {
815 backuptable.put(temp, temp.createNew());
819 for(int i=0; i<fm.numTags(); i++) {
820 TempDescriptor temp=fm.getTag(i);
821 if (GENERATEPRECISEGC)
822 objectparams.addPtr(temp);
824 objectparams.addPrim(temp);
827 TempObject objecttemps=md!=null ? new TempObject(objectparams,md,tag++) : new TempObject(objectparams, task, tag++);
829 tempstable.put(lb, objecttemps);
831 tempstable.put(md, objecttemps);
833 tempstable.put(task, objecttemps);
835 for(Iterator nodeit=fm.getNodeSet().iterator(); nodeit.hasNext();) {
836 FlatNode fn=(FlatNode)nodeit.next();
837 TempDescriptor[] writes=fn.writesTemps();
838 for(int i=0; i<writes.length; i++) {
839 TempDescriptor temp=writes[i];
840 TypeDescriptor type=temp.getType();
841 if (type.isPtr()&&GENERATEPRECISEGC)
842 objecttemps.addPtr(temp);
844 objecttemps.addPrim(temp);
845 if(lb!=null&&saveset.contains(temp)&&
846 !backuptable.containsKey(temp))
847 backuptable.put(temp, temp.createNew());
851 /* Create backup temps */
853 for(Iterator<TempDescriptor> tmpit=backuptable.values().iterator(); tmpit.hasNext();) {
854 TempDescriptor tmp=tmpit.next();
855 TypeDescriptor type=tmp.getType();
856 if (type.isPtr()&&GENERATEPRECISEGC)
857 objecttemps.addPtr(tmp);
859 objecttemps.addPrim(tmp);
861 /* Create temp to hold revert table */
862 if (lb.getHasAtomic()||lb.isAtomic()) {
863 TempDescriptor reverttmp=new TempDescriptor("revertlist", typeutil.getClass(TypeUtil.ObjectClass));
864 if (GENERATEPRECISEGC)
865 objecttemps.addPtr(reverttmp);
867 objecttemps.addPrim(reverttmp);
868 reverttable.put(lb, reverttmp);
873 /** This method outputs the following information about classes
875 * (1) For classes, what are the locations of pointers.
876 * (2) For arrays, does the array contain pointers or primitives.
877 * (3) For classes, does the class contain flags.
880 private void generateLayoutStructs(PrintWriter output) {
881 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
882 while(it.hasNext()) {
883 ClassDescriptor cn=(ClassDescriptor)it.next();
884 output.println("unsigned int "+cn.getSafeSymbol()+"_pointers[]={");
885 Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
887 while(allit.hasNext()) {
888 FieldDescriptor fd=(FieldDescriptor)allit.next();
889 TypeDescriptor type=fd.getType();
890 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
896 allit=cn.getFieldTable().getAllDescriptorsIterator();
897 while(allit.hasNext()) {
898 FieldDescriptor fd=(FieldDescriptor)allit.next();
899 TypeDescriptor type=fd.getType();
900 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
904 output.print("((unsigned int)&(((struct "+cn.getSafeSymbol() +" *)0)->"+fd.getSafeSymbol()+"))");
907 output.println("};");
909 output.println("unsigned int * pointerarray[]={");
910 boolean needcomma=false;
911 for(int i=0; i<state.numClasses(); i++) {
912 ClassDescriptor cn=cdarray[i];
916 output.print(cn.getSafeSymbol()+"_pointers");
919 for(int i=0; i<state.numArrays(); i++) {
921 output.println(", ");
922 TypeDescriptor tdelement=arraytable[i].dereference();
923 if (tdelement.isArray()||tdelement.isClass())
924 output.print("((unsigned int *)1)");
930 output.println("};");
932 output.println("int hasflags[]={");
933 for(int i=0; i<state.numClasses(); i++) {
934 ClassDescriptor cn=cdarray[i];
936 output.println(", ");
943 output.println("};");
946 /** Print out table to give us supertypes */
947 private void generateSuperTypeTable(PrintWriter output) {
948 output.println("int supertypes[]={");
949 boolean needcomma=false;
950 for(int i=0; i<state.numClasses(); i++) {
951 ClassDescriptor cn=cdarray[i];
955 if (cn.getSuperDesc()!=null) {
956 ClassDescriptor cdsuper=cn.getSuperDesc();
957 output.print(cdsuper.getId());
961 output.println("};");
964 /** Force consistent field ordering between inherited classes. */
966 private void printClassStruct(ClassDescriptor cn, PrintWriter classdefout) {
968 ClassDescriptor sp=cn.getSuperDesc();
970 printClassStruct(sp, classdefout);
972 if (!fieldorder.containsKey(cn)) {
973 Vector fields=new Vector();
974 fieldorder.put(cn,fields);
975 if (sp==null&&!state.TASK) {
976 fields.add(cn.getFieldTable().get("cachedCode"));
978 Iterator fieldit=cn.getFields();
979 while(fieldit.hasNext()) {
980 FieldDescriptor fd=(FieldDescriptor)fieldit.next();
981 if ((sp==null||!sp.getFieldTable().contains(fd.getSymbol()))&&
982 (!fd.getSymbol().equals("cachedCode")||state.TASK))
986 Vector fields=(Vector)fieldorder.get(cn);
988 for(int i=0; i<fields.size(); i++) {
989 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
990 if (fd.getType().isClass()||fd.getType().isArray())
991 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
993 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
998 /* Map flags to integers consistently between inherited
1001 protected void mapFlags(ClassDescriptor cn) {
1002 ClassDescriptor sp=cn.getSuperDesc();
1006 if (!flagorder.containsKey(cn)) {
1007 Hashtable flags=new Hashtable();
1008 flagorder.put(cn,flags);
1010 Hashtable superflags=(Hashtable)flagorder.get(sp);
1011 Iterator superflagit=superflags.keySet().iterator();
1012 while(superflagit.hasNext()) {
1013 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
1014 Integer number=(Integer)superflags.get(fd);
1015 flags.put(fd, number);
1016 if ((number.intValue()+1)>max)
1017 max=number.intValue()+1;
1021 Iterator flagit=cn.getFlags();
1022 while(flagit.hasNext()) {
1023 FlagDescriptor fd=(FlagDescriptor)flagit.next();
1024 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
1025 flags.put(fd, new Integer(max++));
1031 /** This function outputs (1) structures that parameters are
1032 * passed in (when PRECISE GC is enabled) and (2) function
1033 * prototypes for the methods */
1035 protected void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
1036 /* Output class structure */
1037 classdefout.println("struct "+cn.getSafeSymbol()+" {");
1038 classdefout.println(" int type;");
1040 classdefout.println(" pthread_t tid;");
1041 classdefout.println(" void * lockentry;");
1042 classdefout.println(" int lockcount;");
1046 classdefout.println(" int flag;");
1047 if((!state.MULTICORE) || (cn.getSymbol().equals("TagDescriptor"))) {
1048 classdefout.println(" void * flagptr;");
1049 } else if (state.MULTICORE) {
1050 classdefout.println(" int isolate;"); // indicate if this object is shared or not
1051 classdefout.println(" int version;");
1052 classdefout.println(" struct ___Object___ * original;");
1053 //classdefout.println(" int numlocks;"); // array for locks
1054 classdefout.println(" int * lock;");
1056 if (state.OPTIONAL) {
1057 classdefout.println(" int numfses;");
1058 classdefout.println(" int * fses;");
1061 printClassStruct(cn, classdefout);
1062 classdefout.println("};\n");
1065 /* Cycle through LocalityBindings */
1066 HashSet<MethodDescriptor> nativemethods=new HashSet<MethodDescriptor>();
1067 Set<LocalityBinding> lbset=locality.getClassBindings(cn);
1069 for(Iterator<LocalityBinding> lbit=lbset.iterator(); lbit.hasNext();) {
1070 LocalityBinding lb=lbit.next();
1071 MethodDescriptor md=lb.getMethod();
1072 if (md.getModifiers().isNative()) {
1073 //make sure we only print a native method once
1074 if (nativemethods.contains(md)) {
1075 FlatMethod fm=state.getMethodFlat(md);
1076 generateTempStructs(fm, lb);
1079 nativemethods.add(md);
1081 generateMethod(cn, md, lb, headersout, output);
1084 for(Iterator methodit=cn.getMethods(); methodit.hasNext();) {
1085 MethodDescriptor md=(MethodDescriptor)methodit.next();
1086 if (md.getModifiers().isNative()&&!nativemethods.contains(md)) {
1087 //Need to build param structure for library code
1088 FlatMethod fm=state.getMethodFlat(md);
1089 generateTempStructs(fm, null);
1090 generateMethodParam(cn, md, null, output);
1095 for(Iterator methodit=cn.getMethods(); methodit.hasNext();) {
1096 MethodDescriptor md=(MethodDescriptor)methodit.next();
1097 generateMethod(cn, md, null, headersout, output);
1101 private void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter output) {
1102 /* Output parameter structure */
1103 if (GENERATEPRECISEGC) {
1104 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null ? lb : md);
1105 if (state.DSM&&lb!=null)
1106 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1108 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1109 output.println(" int size;");
1110 output.println(" void * next;");
1111 for(int i=0; i<objectparams.numPointers(); i++) {
1112 TempDescriptor temp=objectparams.getPointer(i);
1113 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1115 output.println("};\n");
1120 private void generateMethod(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter headersout, PrintWriter output) {
1121 FlatMethod fm=state.getMethodFlat(md);
1122 generateTempStructs(fm, lb);
1124 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null ? lb : md);
1125 TempObject objecttemps=(TempObject) tempstable.get(lb!=null ? lb : md);
1127 generateMethodParam(cn, md, lb, output);
1129 /* Output temp structure */
1130 if (GENERATEPRECISEGC) {
1132 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1134 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1135 output.println(" int size;");
1136 output.println(" void * next;");
1137 for(int i=0; i<objecttemps.numPointers(); i++) {
1138 TempDescriptor temp=objecttemps.getPointer(i);
1139 if (temp.getType().isNull())
1140 output.println(" void * "+temp.getSafeSymbol()+";");
1142 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1144 output.println("};\n");
1147 /********* Output method declaration ***********/
1149 /* First the return type */
1150 if (md.getReturnType()!=null) {
1151 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1152 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1154 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1156 //catch the constructor case
1157 headersout.print("void ");
1159 /* Next the method name */
1161 headersout.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1163 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1165 boolean printcomma=false;
1166 if (GENERATEPRECISEGC) {
1168 headersout.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1170 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1174 if (state.DSM&&lb.isAtomic()&&!md.getModifiers().isNative()) {
1176 headersout.print(", ");
1177 headersout.print("transrecord_t * trans");
1181 /* Output parameter list*/
1182 for(int i=0; i<objectparams.numPrimitives(); i++) {
1183 TempDescriptor temp=objectparams.getPrimitive(i);
1185 headersout.print(", ");
1187 if (temp.getType().isClass()||temp.getType().isArray())
1188 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1190 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1192 headersout.println(");\n");
1196 /** This function outputs (1) structures that parameters are
1197 * passed in (when PRECISE GC is enabled) and (2) function
1198 * prototypes for the tasks */
1200 private void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1201 /* Cycle through tasks */
1202 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1204 while(taskit.hasNext()) {
1205 /* Classify parameters */
1206 TaskDescriptor task=(TaskDescriptor)taskit.next();
1207 FlatMethod fm=state.getMethodFlat(task);
1208 generateTempStructs(fm, null);
1210 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1211 TempObject objecttemps=(TempObject) tempstable.get(task);
1213 /* Output parameter structure */
1214 if (GENERATEPRECISEGC) {
1215 output.println("struct "+task.getSafeSymbol()+"_params {");
1217 output.println(" int size;");
1218 output.println(" void * next;");
1219 for(int i=0; i<objectparams.numPointers(); i++) {
1220 TempDescriptor temp=objectparams.getPointer(i);
1221 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1224 output.println("};\n");
1225 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1226 maxtaskparams=objectparams.numPointers()+fm.numTags();
1230 /* Output temp structure */
1231 if (GENERATEPRECISEGC) {
1232 output.println("struct "+task.getSafeSymbol()+"_locals {");
1233 output.println(" int size;");
1234 output.println(" void * next;");
1235 for(int i=0; i<objecttemps.numPointers(); i++) {
1236 TempDescriptor temp=objecttemps.getPointer(i);
1237 if (temp.getType().isNull())
1238 output.println(" void * "+temp.getSafeSymbol()+";");
1239 else if(temp.getType().isTag())
1240 output.println(" struct "+
1241 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1243 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1245 output.println("};\n");
1248 /* Output task declaration */
1249 headersout.print("void " + task.getSafeSymbol()+"(");
1251 boolean printcomma=false;
1252 if (GENERATEPRECISEGC) {
1253 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1255 headersout.print("void * parameterarray[]");
1256 headersout.println(");\n");
1260 /***** Generate code for FlatMethod fm. *****/
1262 private void generateFlatMethod(FlatMethod fm, LocalityBinding lb, PrintWriter output) {
1263 if (State.PRINTFLAT)
1264 System.out.println(fm.printMethod());
1265 MethodDescriptor md=fm.getMethod();
1267 TaskDescriptor task=fm.getTask();
1269 ClassDescriptor cn=md!=null ? md.getClassDesc() : null;
1271 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null ? lb : md!=null ? md : task);
1272 generateHeader(fm, lb, md!=null ? md : task,output);
1273 TempObject objecttemp=(TempObject) tempstable.get(lb!=null ? lb : md!=null ? md : task);
1274 if (state.DSM&&lb.getHasAtomic()) {
1275 output.println("transrecord_t * trans;");
1278 if (GENERATEPRECISEGC) {
1279 if (md!=null&&state.DSM)
1280 output.print(" struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1281 else if (md!=null&&!state.DSM)
1282 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1284 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
1286 output.print(objecttemp.numPointers()+",");
1287 output.print(paramsprefix);
1288 for(int j=0; j<objecttemp.numPointers(); j++)
1289 output.print(", NULL");
1290 output.println("};");
1293 for(int i=0; i<objecttemp.numPrimitives(); i++) {
1294 TempDescriptor td=objecttemp.getPrimitive(i);
1295 TypeDescriptor type=td.getType();
1297 output.println(" void * "+td.getSafeSymbol()+";");
1298 else if (type.isClass()||type.isArray())
1299 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1301 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1304 /* Assign labels to FlatNode's if necessary.*/
1306 Hashtable<FlatNode, Integer> nodetolabel=assignLabels(fm);
1308 /* Check to see if we need to do a GC if this is a
1309 * multi-threaded program...*/
1311 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1312 if (state.DSM&&lb.isAtomic())
1313 output.println("if (needtocollect) checkcollect2(&"+localsprefix+",trans);");
1315 output.println("if (needtocollect) checkcollect(&"+localsprefix+");");
1318 /* Do the actual code generation */
1319 FlatNode current_node=null;
1320 HashSet tovisit=new HashSet();
1321 HashSet visited=new HashSet();
1322 tovisit.add(fm.getNext(0));
1323 while(current_node!=null||!tovisit.isEmpty()) {
1324 if (current_node==null) {
1325 current_node=(FlatNode)tovisit.iterator().next();
1326 tovisit.remove(current_node);
1328 visited.add(current_node);
1329 if (nodetolabel.containsKey(current_node))
1330 output.println("L"+nodetolabel.get(current_node)+":");
1331 if (state.INSTRUCTIONFAILURE) {
1332 if (state.THREAD||state.DSM) {
1333 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
1335 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
1337 if (current_node.numNext()==0) {
1339 generateFlatNode(fm, lb, current_node, output);
1340 if (current_node.kind()!=FKind.FlatReturnNode) {
1341 output.println(" return;");
1344 } else if(current_node.numNext()==1) {
1346 generateFlatNode(fm, lb, current_node, output);
1347 FlatNode nextnode=current_node.getNext(0);
1348 if (visited.contains(nextnode)) {
1349 output.println("goto L"+nodetolabel.get(nextnode)+";");
1352 current_node=nextnode;
1353 } else if (current_node.numNext()==2) {
1356 generateFlatCondBranch(fm, lb, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
1357 if (!visited.contains(current_node.getNext(1)))
1358 tovisit.add(current_node.getNext(1));
1359 if (visited.contains(current_node.getNext(0))) {
1360 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
1363 current_node=current_node.getNext(0);
1364 } else throw new Error();
1366 output.println("}\n\n");
1369 /** This method assigns labels to FlatNodes */
1371 protected Hashtable<FlatNode, Integer> assignLabels(FlatMethod fm) {
1372 HashSet tovisit=new HashSet();
1373 HashSet visited=new HashSet();
1375 Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
1376 tovisit.add(fm.getNext(0));
1378 /*Assign labels first. A node needs a label if the previous
1379 * node has two exits or this node is a join point. */
1381 while(!tovisit.isEmpty()) {
1382 FlatNode fn=(FlatNode)tovisit.iterator().next();
1385 for(int i=0; i<fn.numNext(); i++) {
1386 FlatNode nn=fn.getNext(i);
1388 //1) Edge >1 of node
1389 nodetolabel.put(nn,new Integer(labelindex++));
1391 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1395 nodetolabel.put(nn,new Integer(labelindex++));
1403 /** Generate text string that corresponds to the TempDescriptor td. */
1404 protected String generateTemp(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1405 MethodDescriptor md=fm.getMethod();
1406 TaskDescriptor task=fm.getTask();
1407 TempObject objecttemps=(TempObject) tempstable.get(lb!=null ? lb : md!=null ? md : task);
1409 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1410 //System.out.println("generateTemp returns " + td.getSafeSymbol());
1411 return td.getSafeSymbol();
1414 if (objecttemps.isLocalPtr(td)) {
1415 return localsprefix+"."+td.getSafeSymbol();
1418 if (objecttemps.isParamPtr(td)) {
1419 return paramsprefix+"->"+td.getSafeSymbol();
1424 protected void generateFlatNode(FlatMethod fm, LocalityBinding lb, FlatNode fn, PrintWriter output) {
1426 case FKind.FlatAtomicEnterNode:
1427 generateFlatAtomicEnterNode(fm, lb, (FlatAtomicEnterNode) fn, output);
1430 case FKind.FlatAtomicExitNode:
1431 generateFlatAtomicExitNode(fm, lb, (FlatAtomicExitNode) fn, output);
1434 case FKind.FlatGlobalConvNode:
1435 generateFlatGlobalConvNode(fm, lb, (FlatGlobalConvNode) fn, output);
1438 case FKind.FlatTagDeclaration:
1439 generateFlatTagDeclaration(fm, lb, (FlatTagDeclaration) fn,output);
1442 case FKind.FlatCall:
1443 generateFlatCall(fm, lb, (FlatCall) fn,output);
1446 case FKind.FlatFieldNode:
1447 generateFlatFieldNode(fm, lb, (FlatFieldNode) fn,output);
1450 case FKind.FlatElementNode:
1451 generateFlatElementNode(fm, lb, (FlatElementNode) fn,output);
1454 case FKind.FlatSetElementNode:
1455 generateFlatSetElementNode(fm, lb, (FlatSetElementNode) fn,output);
1458 case FKind.FlatSetFieldNode:
1459 generateFlatSetFieldNode(fm, lb, (FlatSetFieldNode) fn,output);
1463 generateFlatNew(fm, lb, (FlatNew) fn,output);
1466 case FKind.FlatOpNode:
1467 generateFlatOpNode(fm, lb, (FlatOpNode) fn,output);
1470 case FKind.FlatCastNode:
1471 generateFlatCastNode(fm, lb, (FlatCastNode) fn,output);
1474 case FKind.FlatLiteralNode:
1475 generateFlatLiteralNode(fm, lb, (FlatLiteralNode) fn,output);
1478 case FKind.FlatReturnNode:
1479 generateFlatReturnNode(fm, lb, (FlatReturnNode) fn,output);
1483 output.println("/* nop */");
1486 case FKind.FlatBackEdge:
1487 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1488 if(state.DSM&&locality.getAtomic(lb).get(fn).intValue()>0) {
1489 output.println("if (needtocollect) checkcollect2(&"+localsprefix+",trans);");
1491 output.println("if (needtocollect) checkcollect(&"+localsprefix+");");
1493 output.println("/* nop */");
1496 case FKind.FlatCheckNode:
1497 generateFlatCheckNode(fm, lb, (FlatCheckNode) fn, output);
1500 case FKind.FlatFlagActionNode:
1501 generateFlatFlagActionNode(fm, lb, (FlatFlagActionNode) fn, output);
1504 case FKind.FlatPrefetchNode:
1505 generateFlatPrefetchNode(fm,lb, (FlatPrefetchNode) fn, output);
1508 case FKind.FlatOffsetNode:
1509 generateFlatOffsetNode(fm, lb, (FlatOffsetNode)fn, output);
1515 public void generateFlatOffsetNode(FlatMethod fm, LocalityBinding lb, FlatOffsetNode fofn, PrintWriter output) {
1516 output.println("/* FlatOffsetNode */");
1517 ClassDescriptor cn = fofn.getClassDesc();
1518 FieldDescriptor fd = fofn.getField();
1519 System.out.println("ClassDescriptor cn =" + cn.toString() + " FieldDescriptor fd =" + fd.toString());
1520 System.out.println("TempDescriptor td =" + fofn.getDst().toString() + "Type of TempDescriptor =" + fofn.getDst().getType());
1521 output.println("((struct "+cn.getSafeSymbol() +" *)0)->"+ fd.getSafeSymbol()+";");
1524 public void generateFlatPrefetchNode(FlatMethod fm, LocalityBinding lb, FlatPrefetchNode fpn, PrintWriter output) {
1525 if (state.PREFETCH) {
1526 Vector oids = new Vector();
1527 Vector fieldoffset = new Vector();
1528 Vector endoffset = new Vector();
1529 int tuplecount = 0; //Keeps track of number of prefetch tuples that need to be generated
1530 for(Iterator it = fpn.hspp.iterator(); it.hasNext();) {
1531 PrefetchPair pp = (PrefetchPair) it.next();
1532 Integer statusbase = locality.getNodePreTempInfo(lb,fpn).get(pp.base);
1533 /* Find prefetches that can generate oid */
1534 if(statusbase == LocalityAnalysis.GLOBAL) {
1535 generateTransCode(fm, lb, pp, oids, fieldoffset, endoffset, tuplecount, locality.getAtomic(lb).get(fpn).intValue()>0, false);
1537 } else if (statusbase == LocalityAnalysis.LOCAL) {
1538 generateTransCode(fm,lb,pp,oids,fieldoffset,endoffset,tuplecount,false,true);
1545 System.out.println("Adding prefetch "+fpn+ " to method:" +fm);
1546 output.println("{");
1547 output.println("/* prefetch */");
1548 output.println("/* prefetchid_" + fpn.siteid + " */");
1549 output.println("void * prefptr;");
1550 output.println("int tmpindex;");
1552 output.println("if((evalPrefetch["+fpn.siteid+"].operMode) || (evalPrefetch["+fpn.siteid+"].retrycount <= 0)) {");
1553 /*Create C code for oid array */
1554 output.print(" unsigned int oidarray_[] = {");
1555 boolean needcomma=false;
1556 for (Iterator it = oids.iterator(); it.hasNext();) {
1559 output.print(it.next());
1562 output.println("};");
1564 /*Create C code for endoffset values */
1565 output.print(" unsigned short endoffsetarry_[] = {");
1567 for (Iterator it = endoffset.iterator(); it.hasNext();) {
1570 output.print(it.next());
1573 output.println("};");
1575 /*Create C code for Field Offset Values */
1576 output.print(" short fieldarry_[] = {");
1578 for (Iterator it = fieldoffset.iterator(); it.hasNext();) {
1581 output.print(it.next());
1584 output.println("};");
1585 /* make the prefetch call to Runtime */
1586 output.println(" if(!evalPrefetch["+fpn.siteid+"].operMode) {");
1587 output.println(" evalPrefetch["+fpn.siteid+"].retrycount = RETRYINTERVAL;");
1588 output.println(" }");
1589 output.println(" prefetch("+fpn.siteid+" ,"+tuplecount+", oidarray_, endoffsetarry_, fieldarry_);");
1590 output.println(" } else {");
1591 output.println(" evalPrefetch["+fpn.siteid+"].retrycount--;");
1592 output.println(" }");
1593 output.println("}");
1597 public void generateTransCode(FlatMethod fm, LocalityBinding lb,PrefetchPair pp, Vector oids, Vector fieldoffset, Vector endoffset, int tuplecount, boolean inside, boolean localbase) {
1598 short offsetcount = 0;
1602 } else if (localbase) {
1603 for(; breakindex<pp.desc.size(); breakindex++) {
1604 Descriptor desc=pp.getDescAt(breakindex);
1605 if (desc instanceof FieldDescriptor) {
1606 FieldDescriptor fd=(FieldDescriptor)desc;
1607 if (fd.isGlobal()) {
1615 if (breakindex>pp.desc.size()) //all local
1618 TypeDescriptor lasttype=pp.base.getType();
1619 String basestr=generateTemp(fm, pp.base, lb);
1621 boolean maybenull=fm.getMethod().isStatic()||
1622 !pp.base.equals(fm.getParameter(0));
1624 for(int i=0; i<breakindex; i++) {
1625 String indexcheck="";
1627 Descriptor desc=pp.getDescAt(i);
1628 if (desc instanceof FieldDescriptor) {
1629 FieldDescriptor fd=(FieldDescriptor)desc;
1631 if (!teststr.equals(""))
1633 teststr+="((prefptr="+basestr+")!=NULL)";
1634 basestr="((struct "+lasttype.getSafeSymbol()+" *)prefptr)->"+fd.getSafeSymbol();
1636 basestr=basestr+"->"+fd.getSafeSymbol();
1639 lasttype=fd.getType();
1641 IndexDescriptor id=(IndexDescriptor)desc;
1642 indexcheck="((tmpindex=";
1643 for(int j=0; j<id.tddesc.size(); j++) {
1644 indexcheck+=generateTemp(fm, id.getTempDescAt(j), lb)+"+";
1646 indexcheck+=id.offset+")>=0)&&(tmpindex<((struct ArrayObject *)prefptr)->___length___)";
1648 if (!teststr.equals(""))
1650 teststr+="((prefptr="+basestr+")!= NULL) &&"+indexcheck;
1651 basestr="((void **)(((char *) &(((struct ArrayObject *)prefptr)->___length___))+sizeof(int)))[tmpindex]";
1653 lasttype=lasttype.dereference();
1658 if (teststr.equals("")) {
1659 oid="((unsigned int)"+basestr+")";
1661 oid="((unsigned int)(("+teststr+")?"+basestr+":NULL))";
1665 for(int i = breakindex; i < pp.desc.size(); i++) {
1666 String newfieldoffset;
1667 Object desc = pp.getDescAt(i);
1668 if(desc instanceof FieldDescriptor) {
1669 FieldDescriptor fd=(FieldDescriptor)desc;
1670 newfieldoffset = new String("(unsigned int)(&(((struct "+ lasttype.getSafeSymbol()+" *)0)->"+ fd.getSafeSymbol()+ "))");
1671 lasttype=fd.getType();
1673 newfieldoffset = "";
1674 IndexDescriptor id=(IndexDescriptor)desc;
1675 for(int j = 0; j < id.tddesc.size(); j++) {
1676 newfieldoffset += generateTemp(fm, id.getTempDescAt(j), lb) + "+";
1678 newfieldoffset += id.offset.toString();
1679 lasttype=lasttype.dereference();
1681 fieldoffset.add(newfieldoffset);
1684 int base=(tuplecount>0) ? ((Short)endoffset.get(tuplecount-1)).intValue() : 0;
1685 base+=pp.desc.size()-breakindex;
1686 endoffset.add(new Short((short)base));
1691 public void generateFlatGlobalConvNode(FlatMethod fm, LocalityBinding lb, FlatGlobalConvNode fgcn, PrintWriter output) {
1692 if (lb!=fgcn.getLocality())
1694 /* Have to generate flat globalconv */
1695 if (fgcn.getMakePtr()) {
1696 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)transRead(trans, (unsigned int) "+generateTemp(fm, fgcn.getSrc(),lb)+");");
1698 /* Need to convert to OID */
1699 if (fgcn.doConvert()) {
1700 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)COMPOID("+generateTemp(fm, fgcn.getSrc(),lb)+");");
1702 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=NULL;");
1707 public void generateFlatAtomicEnterNode(FlatMethod fm, LocalityBinding lb, FlatAtomicEnterNode faen, PrintWriter output) {
1708 /* Check to see if we need to generate code for this atomic */
1709 if (locality.getAtomic(lb).get(faen.getPrev(0)).intValue()>0)
1711 /* Backup the temps. */
1712 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator(); tmpit.hasNext();) {
1713 TempDescriptor tmp=tmpit.next();
1714 output.println(generateTemp(fm, backuptable.get(tmp),lb)+"="+generateTemp(fm,tmp,lb)+";");
1716 output.println("goto transstart"+faen.getIdentifier()+";");
1718 /******* Print code to retry aborted transaction *******/
1719 output.println("transretry"+faen.getIdentifier()+":");
1722 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator(); tmpit.hasNext();) {
1723 TempDescriptor tmp=tmpit.next();
1724 output.println(generateTemp(fm, tmp,lb)+"="+generateTemp(fm,backuptable.get(tmp),lb)+";");
1727 /********* Need to revert local object store ********/
1728 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1730 output.println("while ("+revertptr+") {");
1731 output.println("struct ___Object___ * tmpptr;");
1732 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1733 output.println("REVERT_OBJ("+revertptr+");");
1734 output.println(revertptr+"=tmpptr;");
1735 output.println("}");
1737 /******* Tell the runtime to start the transaction *******/
1739 output.println("transstart"+faen.getIdentifier()+":");
1740 output.println("trans=transStart();");
1743 public void generateFlatAtomicExitNode(FlatMethod fm, LocalityBinding lb, FlatAtomicExitNode faen, PrintWriter output) {
1744 /* Check to see if we need to generate code for this atomic */
1745 if (locality.getAtomic(lb).get(faen).intValue()>0)
1747 //store the revert list before we lose the transaction object
1748 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1749 output.println(revertptr+"=trans->revertlist;");
1750 output.println("if (transCommit(trans)) {");
1751 /* Transaction aborts if it returns true */
1752 output.println("goto transretry"+faen.getAtomicEnter().getIdentifier()+";");
1753 output.println("} else {");
1754 /* Need to commit local object store */
1755 output.println("while ("+revertptr+") {");
1756 output.println("struct ___Object___ * tmpptr;");
1757 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1758 output.println("COMMIT_OBJ("+revertptr+");");
1759 output.println(revertptr+"=tmpptr;");
1760 output.println("}");
1761 output.println("}");
1764 private void generateFlatCheckNode(FlatMethod fm, LocalityBinding lb, FlatCheckNode fcn, PrintWriter output) {
1765 if (state.CONSCHECK) {
1766 String specname=fcn.getSpec();
1767 String varname="repairstate___";
1768 output.println("{");
1769 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1771 TempDescriptor[] temps=fcn.getTemps();
1772 String[] vars=fcn.getVars();
1773 for(int i=0; i<temps.length; i++) {
1774 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i],lb)+";");
1777 output.println("if (doanalysis"+specname+"("+varname+")) {");
1778 output.println("free"+specname+"_state("+varname+");");
1779 output.println("} else {");
1780 output.println("/* Bad invariant */");
1781 output.println("free"+specname+"_state("+varname+");");
1782 output.println("abort_task();");
1783 output.println("}");
1784 output.println("}");
1788 private void generateFlatCall(FlatMethod fm, LocalityBinding lb, FlatCall fc, PrintWriter output) {
1789 MethodDescriptor md=fc.getMethod();
1790 ParamsObject objectparams=(ParamsObject)paramstable.get(state.DSM ? locality.getBinding(lb, fc) : md);
1791 ClassDescriptor cn=md.getClassDesc();
1792 output.println("{");
1793 if (GENERATEPRECISEGC) {
1795 LocalityBinding fclb=locality.getBinding(lb, fc);
1796 output.print(" struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1798 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1800 output.print(objectparams.numPointers());
1801 output.print(", & "+localsprefix);
1802 if (md.getThis()!=null) {
1804 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis(),lb));
1806 if (fc.getThis()!=null&&md.getThis()==null) {
1807 System.out.println("WARNING!!!!!!!!!!!!");
1808 System.out.println("Source code calls static method"+md+"on an object in "+fm.getMethod()+"!");
1812 for(int i=0; i<fc.numArgs(); i++) {
1813 Descriptor var=md.getParameter(i);
1814 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1815 if (objectparams.isParamPtr(paramtemp)) {
1816 TempDescriptor targ=fc.getArg(i);
1818 TypeDescriptor td=md.getParamType(i);
1820 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1822 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1825 output.println("};");
1830 if (fc.getReturnTemp()!=null)
1831 output.print(generateTemp(fm,fc.getReturnTemp(),lb)+"=");
1833 /* Do we need to do virtual dispatch? */
1834 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
1837 LocalityBinding fclb=locality.getBinding(lb, fc);
1838 output.print(cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1840 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1845 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1846 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1848 output.print(md.getReturnType().getSafeSymbol()+" ");
1849 output.print("(*)(");
1851 boolean printcomma=false;
1852 if (GENERATEPRECISEGC) {
1854 LocalityBinding fclb=locality.getBinding(lb, fc);
1855 output.print("struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1857 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1861 for(int i=0; i<objectparams.numPrimitives(); i++) {
1862 TempDescriptor temp=objectparams.getPrimitive(i);
1866 if (temp.getType().isClass()||temp.getType().isArray())
1867 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
1869 output.print(temp.getType().getSafeSymbol());
1872 if (state.DSM&&locality.getBinding(lb,fc).isAtomic()&&!fc.getMethod().getModifiers().isNative()) {
1873 LocalityBinding fclb=locality.getBinding(lb, fc);
1876 output.print("transrecord_t *");
1881 LocalityBinding fclb=locality.getBinding(lb, fc);
1882 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getLocalityNumber(fclb)+"])");
1884 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
1888 boolean needcomma=false;
1889 if (GENERATEPRECISEGC) {
1890 output.print("&__parameterlist__");
1894 if (state.DSM&&locality.getBinding(lb,fc).isAtomic()&&!fc.getMethod().getModifiers().isNative()) {
1897 output.print("trans");
1901 if (!GENERATEPRECISEGC) {
1902 if (fc.getThis()!=null) {
1903 TypeDescriptor ptd=md.getThis().getType();
1906 if (ptd.isClass()&&!ptd.isArray())
1907 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1908 output.print(generateTemp(fm,fc.getThis(),lb));
1913 for(int i=0; i<fc.numArgs(); i++) {
1914 Descriptor var=md.getParameter(i);
1915 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1916 if (objectparams.isParamPrim(paramtemp)) {
1917 TempDescriptor targ=fc.getArg(i);
1921 TypeDescriptor ptd=md.getParamType(i);
1922 if (ptd.isClass()&&!ptd.isArray())
1923 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1924 output.print(generateTemp(fm, targ,lb));
1928 output.println(");");
1929 output.println(" }");
1932 private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
1933 Set subclasses=typeutil.getSubClasses(thiscd);
1934 if (subclasses==null)
1936 for(Iterator classit=subclasses.iterator(); classit.hasNext();) {
1937 ClassDescriptor cd=(ClassDescriptor)classit.next();
1938 Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
1939 for(Iterator matchit=possiblematches.iterator(); matchit.hasNext();) {
1940 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
1941 if (md.matches(matchmd))
1948 private void generateFlatFieldNode(FlatMethod fm, LocalityBinding lb, FlatFieldNode ffn, PrintWriter output) {
1950 Integer status=locality.getNodePreTempInfo(lb,ffn).get(ffn.getSrc());
1951 if (status==LocalityAnalysis.GLOBAL) {
1952 String field=ffn.getField().getSafeSymbol();
1953 String src=generateTemp(fm, ffn.getSrc(),lb);
1954 String dst=generateTemp(fm, ffn.getDst(),lb);
1956 if (ffn.getField().getType().isPtr()) {
1958 //TODO: Uncomment this when we have runtime support
1959 //if (ffn.getSrc()==ffn.getDst()) {
1960 //output.println("{");
1961 //output.println("void * temp="+src+";");
1962 //output.println("if (temp&0x1) {");
1963 //output.println("temp=(void *) transRead(trans, (unsigned int) temp);");
1964 //output.println(src+"->"+field+"="+temp+";");
1965 //output.println("}");
1966 //output.println(dst+"=temp;");
1967 //output.println("}");
1969 output.println(dst+"="+ src +"->"+field+ ";");
1970 //output.println("if ("+dst+"&0x1) {");
1971 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1972 //output.println(src+"->"+field+"="+src+"->"+field+";");
1973 //output.println("}");
1976 output.println(dst+"="+ src+"->"+field+";");
1978 } else if (status==LocalityAnalysis.LOCAL) {
1979 if (ffn.getField().getType().isPtr()&&
1980 ffn.getField().isGlobal()) {
1981 String field=ffn.getField().getSafeSymbol();
1982 String src=generateTemp(fm, ffn.getSrc(),lb);
1983 String dst=generateTemp(fm, ffn.getDst(),lb);
1984 output.println(dst+"="+ src +"->"+field+ ";");
1985 if (locality.getAtomic(lb).get(ffn).intValue()>0)
1986 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1988 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1989 } else if (status==LocalityAnalysis.EITHER) {
1990 //Code is reading from a null pointer
1991 output.println("if ("+generateTemp(fm, ffn.getSrc(),lb)+") {");
1992 output.println("#ifndef RAW");
1993 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
1994 output.println("#endif");
1995 //This should throw a suitable null pointer error
1996 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1998 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
2000 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
2004 private void generateFlatSetFieldNode(FlatMethod fm, LocalityBinding lb, FlatSetFieldNode fsfn, PrintWriter output) {
2005 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
2006 throw new Error("Can't set array length");
2007 if (state.DSM && locality.getAtomic(lb).get(fsfn).intValue()>0) {
2008 Integer statussrc=locality.getNodePreTempInfo(lb,fsfn).get(fsfn.getSrc());
2009 Integer statusdst=locality.getNodeTempInfo(lb).get(fsfn).get(fsfn.getDst());
2010 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
2012 String src=generateTemp(fm,fsfn.getSrc(),lb);
2013 String dst=generateTemp(fm,fsfn.getDst(),lb);
2015 output.println("{");
2016 output.println("int srcoid=("+src+"!=NULL?((int)"+src+"->"+oidstr+"):0);");
2018 if (statusdst.equals(LocalityAnalysis.GLOBAL)) {
2021 output.println("*((unsigned int *)&("+dst+"->___localcopy___))|=DIRTY;");
2023 output.println("*((unsigned int *)&("+glbdst+"->"+ fsfn.getField().getSafeSymbol()+"))=srcoid;");
2025 output.println(glbdst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
2026 } else if (statusdst.equals(LocalityAnalysis.LOCAL)) {
2027 /** Check if we need to copy */
2028 output.println("if(!"+dst+"->"+localcopystr+") {");
2029 /* Link object into list */
2030 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2031 output.println(revertptr+"=trans->revertlist;");
2032 if (GENERATEPRECISEGC)
2033 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
2035 output.println("COPY_OBJ("+dst+");");
2036 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
2037 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
2038 output.println("}");
2040 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
2042 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
2043 } else if (statusdst.equals(LocalityAnalysis.EITHER)) {
2044 //writing to a null...bad
2045 output.println("if ("+dst+") {");
2046 output.println("#ifndef RAW");
2047 output.println("printf(\"BIG ERROR 2\\n\");exit(-1);}");
2048 output.println("#endif");
2050 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
2052 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
2055 output.println("}");
2058 output.println(generateTemp(fm, fsfn.getDst(),lb)+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc(),lb)+";");
2062 private void generateFlatElementNode(FlatMethod fm, LocalityBinding lb, FlatElementNode fen, PrintWriter output) {
2063 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
2066 if (elementtype.isArray()||elementtype.isClass())
2069 type=elementtype.getSafeSymbol()+" ";
2071 if (fen.needsBoundsCheck()) {
2072 output.println("if ("+generateTemp(fm, fen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fen.getIndex(),lb)+" >= "+generateTemp(fm,fen.getSrc(),lb) + "->___length___)");
2073 output.println("failedboundschk();");
2076 Integer status=locality.getNodePreTempInfo(lb,fen).get(fen.getSrc());
2077 if (status==LocalityAnalysis.GLOBAL) {
2078 String dst=generateTemp(fm, fen.getDst(),lb);
2080 if (elementtype.isPtr()) {
2081 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2082 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
2084 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2086 } else if (status==LocalityAnalysis.LOCAL) {
2087 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2088 } else if (status==LocalityAnalysis.EITHER) {
2089 //Code is reading from a null pointer
2090 output.println("if ("+generateTemp(fm, fen.getSrc(),lb)+") {");
2091 output.println("#ifndef RAW");
2092 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
2093 output.println("#endif");
2094 //This should throw a suitable null pointer error
2095 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2097 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
2099 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2103 private void generateFlatSetElementNode(FlatMethod fm, LocalityBinding lb, FlatSetElementNode fsen, PrintWriter output) {
2104 //TODO: need dynamic check to make sure this assignment is actually legal
2105 //Because Object[] could actually be something more specific...ie. Integer[]
2107 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2110 if (elementtype.isArray()||elementtype.isClass())
2113 type=elementtype.getSafeSymbol()+" ";
2116 if (fsen.needsBoundsCheck()) {
2117 output.println("if ("+generateTemp(fm, fsen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fsen.getIndex(),lb)+" >= "+generateTemp(fm,fsen.getDst(),lb) + "->___length___)");
2118 output.println("failedboundschk();");
2121 if (state.DSM && locality.getAtomic(lb).get(fsen).intValue()>0) {
2122 Integer statussrc=locality.getNodePreTempInfo(lb,fsen).get(fsen.getSrc());
2123 Integer statusdst=locality.getNodePreTempInfo(lb,fsen).get(fsen.getDst());
2124 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
2125 boolean dstglobal=statusdst==LocalityAnalysis.GLOBAL;
2126 boolean dstlocal=statusdst==LocalityAnalysis.LOCAL;
2129 output.println("*((unsigned int *)&("+generateTemp(fm,fsen.getDst(),lb)+"->___localcopy___))|=DIRTY;");
2130 } else if (dstlocal) {
2131 /** Check if we need to copy */
2132 String dst=generateTemp(fm, fsen.getDst(),lb);
2133 output.println("if(!"+dst+"->"+localcopystr+") {");
2134 /* Link object into list */
2135 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2136 output.println(revertptr+"=trans->revertlist;");
2137 if (GENERATEPRECISEGC)
2138 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
2140 output.println("COPY_OBJ("+dst+");");
2141 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
2142 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
2143 output.println("}");
2144 } else throw new Error("Unknown array type");
2146 output.println("{");
2147 String src=generateTemp(fm, fsen.getSrc(), lb);
2148 output.println("int srcoid=("+src+"!=NULL?((int)"+src+"->"+oidstr+"):0);");
2149 output.println("((int*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]=srcoid;");
2150 output.println("}");
2152 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2155 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2158 protected void generateFlatNew(FlatMethod fm, LocalityBinding lb, FlatNew fn, PrintWriter output) {
2159 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2160 //Stash pointer in case of GC
2161 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2162 output.println(revertptr+"=trans->revertlist;");
2164 if (fn.getType().isArray()) {
2165 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2166 if (fn.isGlobal()) {
2167 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarrayglobal(trans, "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2168 } else if (GENERATEPRECISEGC) {
2169 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray(&"+localsprefix+", "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2171 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2174 if (fn.isGlobal()) {
2175 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newglobal(trans, "+fn.getType().getClassDesc().getId()+");");
2176 } else if (GENERATEPRECISEGC) {
2177 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new(&"+localsprefix+", "+fn.getType().getClassDesc().getId()+");");
2179 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2182 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2183 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2184 output.println("trans->revertlist="+revertptr+";");
2188 private void generateFlatTagDeclaration(FlatMethod fm, LocalityBinding lb, FlatTagDeclaration fn, PrintWriter output) {
2189 if (GENERATEPRECISEGC) {
2190 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag(&"+localsprefix+", "+state.getTagId(fn.getType())+");");
2192 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag("+state.getTagId(fn.getType())+");");
2196 private void generateFlatOpNode(FlatMethod fm, LocalityBinding lb, FlatOpNode fon, PrintWriter output) {
2197 if (fon.getRight()!=null) {
2198 if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2199 if (fon.getLeft().getType().isLong())
2200 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2202 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned int)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2205 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+fon.getOp().toString()+generateTemp(fm,fon.getRight(),lb)+";");
2206 } else if (fon.getOp().getOp()==Operation.ASSIGN)
2207 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2208 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2209 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2210 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2211 output.println(generateTemp(fm, fon.getDest(),lb)+" = -"+generateTemp(fm, fon.getLeft(),lb)+";");
2212 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2213 output.println(generateTemp(fm, fon.getDest(),lb)+" = !"+generateTemp(fm, fon.getLeft(),lb)+";");
2214 else if (fon.getOp().getOp()==Operation.COMP)
2215 output.println(generateTemp(fm, fon.getDest(),lb)+" = ~"+generateTemp(fm, fon.getLeft(),lb)+";");
2216 else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2217 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+"->fses==NULL;");
2219 output.println(generateTemp(fm, fon.getDest(),lb)+fon.getOp().toString()+generateTemp(fm, fon.getLeft(),lb)+";");
2222 private void generateFlatCastNode(FlatMethod fm, LocalityBinding lb, FlatCastNode fcn, PrintWriter output) {
2223 /* TODO: Do type check here */
2224 if (fcn.getType().isArray()) {
2226 } else if (fcn.getType().isClass())
2227 output.println(generateTemp(fm,fcn.getDst(),lb)+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc(),lb)+";");
2229 output.println(generateTemp(fm,fcn.getDst(),lb)+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc(),lb)+";");
2232 private void generateFlatLiteralNode(FlatMethod fm, LocalityBinding lb, FlatLiteralNode fln, PrintWriter output) {
2233 if (fln.getType().isOffset()) {
2234 if (fln.getValue() instanceof OffsetNode) {
2235 OffsetNode ofn = (OffsetNode) fln.getValue();
2236 output.println(generateTemp(fm, fln.getDst(),lb)+
2237 " = (short) (&((struct "+ofn.getClassDesc().getSafeSymbol() +" *)0)->"+
2238 ofn.getField().getSafeSymbol()+");");
2240 output.println("/* offset */");
2243 if (fln.getValue()==null)
2244 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2245 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2246 if (GENERATEPRECISEGC) {
2247 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2248 //Stash pointer in case of GC
2249 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2250 output.println(revertptr+"=trans->revertlist;");
2252 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(&"+localsprefix+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2253 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2254 //Stash pointer in case of GC
2255 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2256 output.println("trans->revertlist="+revertptr+";");
2259 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2261 } else if (fln.getType().isBoolean()) {
2262 if (((Boolean)fln.getValue()).booleanValue())
2263 output.println(generateTemp(fm, fln.getDst(),lb)+"=1;");
2265 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2266 } else if (fln.getType().isChar()) {
2267 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2268 output.println(generateTemp(fm, fln.getDst(),lb)+"='"+st+"';");
2269 } else if (fln.getType().isLong()) {
2270 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+"LL;");
2272 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+";");
2275 protected void generateFlatReturnNode(FlatMethod fm, LocalityBinding lb, FlatReturnNode frn, PrintWriter output) {
2276 if (frn.getReturnTemp()!=null) {
2277 if (frn.getReturnTemp().getType().isPtr())
2278 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2280 output.println("return "+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2282 output.println("return;");
2286 protected void generateFlatCondBranch(FlatMethod fm, LocalityBinding lb, FlatCondBranch fcb, String label, PrintWriter output) {
2287 output.println("if (!"+generateTemp(fm, fcb.getTest(),lb)+") goto "+label+";");
2290 /** This method generates header information for the method or
2291 * task referenced by the Descriptor des. */
2293 private void generateHeader(FlatMethod fm, LocalityBinding lb, Descriptor des, PrintWriter output) {
2295 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null ? lb : des);
2296 MethodDescriptor md=null;
2297 TaskDescriptor task=null;
2298 if (des instanceof MethodDescriptor)
2299 md=(MethodDescriptor) des;
2301 task=(TaskDescriptor) des;
2303 ClassDescriptor cn=md!=null ? md.getClassDesc() : null;
2305 if (md!=null&&md.getReturnType()!=null) {
2306 if (md.getReturnType().isClass()||md.getReturnType().isArray())
2307 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2309 output.print(md.getReturnType().getSafeSymbol()+" ");
2311 //catch the constructor case
2312 output.print("void ");
2315 output.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2317 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2319 output.print(task.getSafeSymbol()+"(");
2321 boolean printcomma=false;
2322 if (GENERATEPRECISEGC) {
2325 output.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2327 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2329 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2333 if (state.DSM&&lb.isAtomic()) {
2336 output.print("transrecord_t * trans");
2342 for(int i=0; i<objectparams.numPrimitives(); i++) {
2343 TempDescriptor temp=objectparams.getPrimitive(i);
2347 if (temp.getType().isClass()||temp.getType().isArray())
2348 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2350 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2352 output.println(") {");
2353 } else if (!GENERATEPRECISEGC) {
2354 /* Imprecise Task */
2355 output.println("void * parameterarray[]) {");
2356 /* Unpack variables */
2357 for(int i=0; i<objectparams.numPrimitives(); i++) {
2358 TempDescriptor temp=objectparams.getPrimitive(i);
2359 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2361 for(int i=0; i<fm.numTags(); i++) {
2362 TempDescriptor temp=fm.getTag(i);
2363 int offset=i+objectparams.numPrimitives();
2364 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2367 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2368 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2369 } else output.println(") {");
2372 public void generateFlatFlagActionNode(FlatMethod fm, LocalityBinding lb, FlatFlagActionNode ffan, PrintWriter output) {
2373 output.println("/* FlatFlagActionNode */");
2376 /* Process tag changes */
2377 Relation tagsettable=new Relation();
2378 Relation tagcleartable=new Relation();
2380 Iterator tagsit=ffan.getTempTagPairs();
2381 while (tagsit.hasNext()) {
2382 TempTagPair ttp=(TempTagPair) tagsit.next();
2383 TempDescriptor objtmp=ttp.getTemp();
2384 TagDescriptor tag=ttp.getTag();
2385 TempDescriptor tagtmp=ttp.getTagTemp();
2386 boolean tagstatus=ffan.getTagChange(ttp);
2388 tagsettable.put(objtmp, tagtmp);
2390 tagcleartable.put(objtmp, tagtmp);
2395 Hashtable flagandtable=new Hashtable();
2396 Hashtable flagortable=new Hashtable();
2398 /* Process flag changes */
2399 Iterator flagsit=ffan.getTempFlagPairs();
2400 while(flagsit.hasNext()) {
2401 TempFlagPair tfp=(TempFlagPair)flagsit.next();
2402 TempDescriptor temp=tfp.getTemp();
2403 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2404 FlagDescriptor flag=tfp.getFlag();
2406 //Newly allocate objects that don't set any flags case
2407 if (flagortable.containsKey(temp)) {
2411 flagortable.put(temp,new Integer(mask));
2413 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2414 boolean flagstatus=ffan.getFlagChange(tfp);
2417 if (flagortable.containsKey(temp)) {
2418 mask=((Integer)flagortable.get(temp)).intValue();
2421 flagortable.put(temp,new Integer(mask));
2423 int mask=0xFFFFFFFF;
2424 if (flagandtable.containsKey(temp)) {
2425 mask=((Integer)flagandtable.get(temp)).intValue();
2427 mask&=(0xFFFFFFFF^flagid);
2428 flagandtable.put(temp,new Integer(mask));
2434 HashSet flagtagset=new HashSet();
2435 flagtagset.addAll(flagortable.keySet());
2436 flagtagset.addAll(flagandtable.keySet());
2437 flagtagset.addAll(tagsettable.keySet());
2438 flagtagset.addAll(tagcleartable.keySet());
2440 Iterator ftit=flagtagset.iterator();
2441 while(ftit.hasNext()) {
2442 TempDescriptor temp=(TempDescriptor)ftit.next();
2445 Set tagtmps=tagcleartable.get(temp);
2446 if (tagtmps!=null) {
2447 Iterator tagit=tagtmps.iterator();
2448 while(tagit.hasNext()) {
2449 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2450 if (GENERATEPRECISEGC)
2451 output.println("tagclear(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2453 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2457 tagtmps=tagsettable.get(temp);
2458 if (tagtmps!=null) {
2459 Iterator tagit=tagtmps.iterator();
2460 while(tagit.hasNext()) {
2461 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2462 if (GENERATEPRECISEGC)
2463 output.println("tagset(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2465 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp, lb)+", "+generateTemp(fm,tagtmp, lb)+");");
2470 int andmask=0xFFFFFFF;
2472 if (flagortable.containsKey(temp))
2473 ormask=((Integer)flagortable.get(temp)).intValue();
2474 if (flagandtable.containsKey(temp))
2475 andmask=((Integer)flagandtable.get(temp)).intValue();
2476 generateFlagOrAnd(ffan, fm, lb, temp, output, ormask, andmask);
2477 generateObjectDistribute(ffan, fm, lb, temp, output);
2481 protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp,
2482 PrintWriter output, int ormask, int andmask) {
2483 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2484 output.println("flagorandinit("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2486 output.println("flagorand("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2490 protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp, PrintWriter output) {
2491 output.println("enqueueObject("+generateTemp(fm, temp, lb)+");");
2494 void generateOptionalHeader(PrintWriter headers) {
2497 headers.println("#include \"task.h\"\n\n");
2498 headers.println("#ifndef _OPTIONAL_STRUCT_");
2499 headers.println("#define _OPTIONAL_STRUCT_");
2501 //STRUCT PREDICATEMEMBER
2502 headers.println("struct predicatemember{");
2503 headers.println("int type;");
2504 headers.println("int numdnfterms;");
2505 headers.println("int * flags;");
2506 headers.println("int numtags;");
2507 headers.println("int * tags;\n};\n\n");
2509 //STRUCT OPTIONALTASKDESCRIPTOR
2510 headers.println("struct optionaltaskdescriptor{");
2511 headers.println("struct taskdescriptor * task;");
2512 headers.println("int index;");
2513 headers.println("int numenterflags;");
2514 headers.println("int * enterflags;");
2515 headers.println("int numpredicatemembers;");
2516 headers.println("struct predicatemember ** predicatememberarray;");
2517 headers.println("};\n\n");
2519 //STRUCT TASKFAILURE
2520 headers.println("struct taskfailure {");
2521 headers.println("struct taskdescriptor * task;");
2522 headers.println("int index;");
2523 headers.println("int numoptionaltaskdescriptors;");
2524 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2526 //STRUCT FSANALYSISWRAPPER
2527 headers.println("struct fsanalysiswrapper{");
2528 headers.println("int flags;");
2529 headers.println("int numtags;");
2530 headers.println("int * tags;");
2531 headers.println("int numtaskfailures;");
2532 headers.println("struct taskfailure ** taskfailurearray;");
2533 headers.println("int numoptionaltaskdescriptors;");
2534 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2536 //STRUCT CLASSANALYSISWRAPPER
2537 headers.println("struct classanalysiswrapper{");
2538 headers.println("int type;");
2539 headers.println("int numotd;");
2540 headers.println("struct optionaltaskdescriptor ** otdarray;");
2541 headers.println("int numfsanalysiswrappers;");
2542 headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
2544 headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
2546 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
2547 while(taskit.hasNext()) {
2548 TaskDescriptor td=(TaskDescriptor)taskit.next();
2549 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
2554 //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
2555 int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
2556 int predicateindex = 0;
2557 //iterate through the classes concerned by the predicate
2558 Set c_vard = predicate.vardescriptors;
2559 Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
2562 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext();) {
2563 VarDescriptor vard = (VarDescriptor)vard_it.next();
2564 TypeDescriptor typed = vard.getType();
2566 //generate for flags
2567 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
2568 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2570 if (fen_hashset!=null) {
2571 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext();) {
2572 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
2574 DNFFlag dflag=fen.getDNF();
2575 numberterms+=dflag.size();
2577 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
2579 for(int j=0; j<dflag.size(); j++) {
2581 output.println(",");
2582 Vector term=dflag.get(j);
2585 for(int k=0; k<term.size(); k++) {
2586 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
2587 FlagDescriptor fd=dfa.getFlag();
2588 boolean negated=dfa.getNegated();
2589 int flagid=1<<((Integer)flags.get(fd)).intValue();
2594 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
2599 output.println("};\n");
2602 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
2603 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2606 for(int j=0; j<tagel.numTags(); j++) {
2608 output.println(",");
2609 TempDescriptor tmp=tagel.getTemp(j);
2610 if (!slotnumber.containsKey(tmp)) {
2611 Integer slotint=new Integer(current_slot++);
2612 slotnumber.put(tmp,slotint);
2614 int slot=slotnumber.get(tmp).intValue();
2615 output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
2617 numtags = tagel.numTags();
2619 output.println("};");
2621 //store the result into a predicatemember struct
2622 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2623 output.println("/*type*/"+typed.getClassDesc().getId()+",");
2624 output.println("/* number of dnf terms */"+numberterms+",");
2625 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2626 output.println("/* number of tag */"+numtags+",");
2627 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2628 output.println("};\n");
2633 //generate an array that stores the entire predicate
2634 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2635 for( int j = 0; j<predicateindex; j++) {
2636 if( j != predicateindex-1) output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2637 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2639 output.println("};\n");
2640 return predicateindex;
2644 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
2645 generateOptionalHeader(headers);
2647 output.println("#include \"optionalstruct.h\"\n\n");
2648 output.println("#include \"stdlib.h\"\n");
2650 HashSet processedcd = new HashSet();
2652 Enumeration e = safeexecution.keys();
2653 while (e.hasMoreElements()) {
2656 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
2657 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp); //will be used several times
2659 //Generate the struct of optionals
2660 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2661 numotd = c_otd.size();
2662 if(maxotd<numotd) maxotd = numotd;
2663 if( !c_otd.isEmpty() ) {
2664 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();) {
2665 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2667 //generate the int arrays for the predicate
2668 Predicate predicate = otd.predicate;
2669 int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
2670 TreeSet<Integer> fsset=new TreeSet<Integer>();
2671 //iterate through possible FSes corresponding to
2672 //the state when entering
2674 for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext();) {
2675 FlagState fs = (FlagState)fses.next();
2677 for(Iterator flags = fs.getFlags(); flags.hasNext();) {
2678 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2679 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2682 fsset.add(new Integer(flagid));
2683 //tag information not needed because tag
2684 //changes are not tolerated.
2687 output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2688 boolean needcomma=false;
2689 for(Iterator<Integer> it=fsset.iterator(); it.hasNext();) {
2692 output.println(it.next());
2695 output.println("};\n");
2698 //generate optionaltaskdescriptor that actually
2699 //includes exit fses, predicate and the task
2701 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2702 output.println("&task_"+otd.td.getSafeSymbol()+",");
2703 output.println("/*index*/"+otd.getIndex()+",");
2704 output.println("/*number of enter flags*/"+fsset.size()+",");
2705 output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2706 output.println("/*number of members */"+predicateindex+",");
2707 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2708 output.println("};\n");
2712 // if there are no optionals, there is no need to build the rest of the struct
2714 output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
2715 c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2716 if( !c_otd.isEmpty() ) {
2717 boolean needcomma=false;
2718 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();) {
2719 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2721 output.println(",");
2723 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2726 output.println("};\n");
2728 //get all the possible flagstates reachable by an object
2729 Hashtable hashtbtemp = safeexecution.get(cdtemp);
2731 TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
2732 fsts.addAll(hashtbtemp.keySet());
2733 for(Iterator fsit=fsts.iterator(); fsit.hasNext();) {
2734 FlagState fs = (FlagState)fsit.next();
2737 //get the set of OptionalTaskDescriptors corresponding
2738 HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
2739 //iterate through the OptionalTaskDescriptors and
2740 //store the pointers to the optionals struct (see on
2741 //top) into an array
2743 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
2744 for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext();) {
2745 OptionalTaskDescriptor mm = mos.next();
2747 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
2749 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2752 output.println("};\n");
2754 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
2757 for(Iterator flags = fs.getFlags(); flags.hasNext();) {
2758 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2759 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2763 //process tag information
2766 boolean first = true;
2767 Enumeration tag_enum = fs.getTags();
2768 output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2769 while(tag_enum.hasMoreElements()) {
2771 TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
2775 output.println(", ");
2776 output.println("/*tagid*/"+state.getTagId(tagd));
2778 output.println("};");
2780 Set<TaskIndex> tiset=sa.getTaskIndex(fs);
2781 for(Iterator<TaskIndex> itti=tiset.iterator(); itti.hasNext();) {
2782 TaskIndex ti=itti.next();
2786 Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
2788 output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
2789 boolean needcomma=false;
2790 for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator(); otdit.hasNext();) {
2791 OptionalTaskDescriptor otd=otdit.next();
2795 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2797 output.println("};");
2799 output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
2800 output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
2801 output.print(ti.getIndex()+", ");
2802 output.print(otdset.size()+", ");
2803 output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
2804 output.println("};");
2807 tiset=sa.getTaskIndex(fs);
2808 boolean needcomma=false;
2810 output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2811 for(Iterator<TaskIndex> itti=tiset.iterator(); itti.hasNext();) {
2812 TaskIndex ti=itti.next();
2813 if (ti.isRuntime()) {
2820 output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
2822 output.println("};\n");
2824 //Store the result in fsanalysiswrapper
2826 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
2827 output.println("/*flag*/"+flagid+",");
2828 output.println("/* number of tags*/"+tagcounter+",");
2829 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2830 output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
2831 output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2832 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
2833 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
2834 output.println("};\n");
2838 //Build the array of fsanalysiswrappers
2839 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
2840 boolean needcomma=false;
2841 for(int i = 0; i<fscounter; i++) {
2842 if (needcomma) output.print(",");
2843 output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
2846 output.println("};");
2848 //Build the classanalysiswrapper referring to the previous array
2849 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
2850 output.println("/*type*/"+cdtemp.getId()+",");
2851 output.println("/*numotd*/"+numotd+",");
2852 output.println("otdarray"+cdtemp.getSafeSymbol()+",");
2853 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
2854 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
2855 processedcd.add(cdtemp);
2858 //build an array containing every classes for which code has been build
2859 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
2860 for(int i=0; i<state.numClasses(); i++) {
2861 ClassDescriptor cn=cdarray[i];
2864 if (processedcd.contains(cn))
2865 output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
2867 output.print("NULL");
2869 output.println("};");
2871 output.println("#define MAXOTD "+maxotd);
2872 headers.println("#endif");
2875 public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
2876 Relation r=new Relation();
2877 for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator(); otdit.hasNext();) {
2878 OptionalTaskDescriptor otd=otdit.next();
2879 TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
2883 LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
2884 for(Iterator it=r.keySet().iterator(); it.hasNext();) {
2885 Set s=r.get(it.next());
2886 for(Iterator it2=s.iterator(); it2.hasNext();) {
2887 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();
2895 protected void outputTransCode(PrintWriter output) {