2 import IR.Tree.FlagExpressionNode;
3 import IR.Tree.DNFFlag;
4 import IR.Tree.DNFFlagAtom;
5 import IR.Tree.TagExpressionList;
10 import Analysis.TaskStateAnalysis.FlagState;
11 import Analysis.TaskStateAnalysis.FlagComparator;
12 import Analysis.TaskStateAnalysis.OptionalTaskDescriptor;
13 import Analysis.TaskStateAnalysis.Predicate;
14 import Analysis.TaskStateAnalysis.SafetyAnalysis;
15 import Analysis.TaskStateAnalysis.TaskIndex;
16 import Analysis.Locality.LocalityAnalysis;
17 import Analysis.Locality.LocalityBinding;
18 import Analysis.Prefetch.*;
20 public class BuildCode {
23 Hashtable paramstable;
28 String localsprefix="___locals___";
29 String paramsprefix="___params___";
30 String oidstr="___nextobject___";
31 String nextobjstr="___nextobject___";
32 String localcopystr="___localcopy___";
33 public static boolean GENERATEPRECISEGC=false;
34 public static String PREFIX="";
35 public static String arraytype="ArrayObject";
36 public static int flagcount = 0;
39 private int maxtaskparams=0;
40 private int maxcount=0;
41 ClassDescriptor[] cdarray;
42 TypeDescriptor[] arraytable;
43 LocalityAnalysis locality;
44 Hashtable<TempDescriptor, TempDescriptor> backuptable;
45 Hashtable<LocalityBinding, TempDescriptor> reverttable;
48 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa) {
49 this(st, temptovar, typeutil, null, sa);
52 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality) {
53 this(st, temptovar, typeutil, locality, null);
56 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality, SafetyAnalysis sa) {
59 this.temptovar=temptovar;
60 paramstable=new Hashtable();
61 tempstable=new Hashtable();
62 fieldorder=new Hashtable();
63 flagorder=new Hashtable();
64 this.typeutil=typeutil;
65 virtualcalls=new Virtual(state,locality);
67 this.locality=locality;
68 this.backuptable=new Hashtable<TempDescriptor, TempDescriptor>();
69 this.reverttable=new Hashtable<LocalityBinding, TempDescriptor>();
73 /** The buildCode method outputs C code for all the methods. The Flat
74 * versions of the methods must already be generated and stored in
75 * the State object. */
77 public void buildCode() {
78 /* Create output streams to write to */
79 PrintWriter outclassdefs=null;
80 PrintWriter outstructs=null;
81 PrintWriter outrepairstructs=null;
82 PrintWriter outmethodheader=null;
83 PrintWriter outmethod=null;
84 PrintWriter outvirtual=null;
85 PrintWriter outtask=null;
86 PrintWriter outtaskdefs=null;
87 PrintWriter outoptionalarrays=null;
88 PrintWriter optionalheaders=null;
91 outstructs=new PrintWriter(new FileOutputStream(PREFIX+"structdefs.h"), true);
92 outmethodheader=new PrintWriter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
93 outclassdefs=new PrintWriter(new FileOutputStream(PREFIX+"classdefs.h"), true);
94 outmethod=new PrintWriter(new FileOutputStream(PREFIX+"methods.c"), true);
95 outvirtual=new PrintWriter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
97 outtask=new PrintWriter(new FileOutputStream(PREFIX+"task.h"), true);
98 outtaskdefs=new PrintWriter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
100 outoptionalarrays=new PrintWriter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
101 optionalheaders=new PrintWriter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
104 if (state.structfile!=null) {
105 outrepairstructs=new PrintWriter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
107 } catch (Exception e) {
112 /* Build the virtual dispatch tables */
113 buildVirtualTables(outvirtual);
115 /* Output includes */
116 outmethodheader.println("#ifndef METHODHEADERS_H");
117 outmethodheader.println("#define METHODHEADERS_H");
118 outmethodheader.println("#include \"structdefs.h\"");
120 outmethodheader.println("#include \"dstm.h\"");
122 /* Output Structures */
123 outputStructs(outstructs);
125 // Output the C class declarations
126 // These could mutually reference each other
127 outputClassDeclarations(outclassdefs);
129 // Output function prototypes and structures for parameters
130 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
131 while(it.hasNext()) {
132 ClassDescriptor cn=(ClassDescriptor)it.next();
133 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader);
135 outclassdefs.close();
138 /* Map flags to integers */
139 /* The runtime keeps track of flags using these integers */
140 it=state.getClassSymbolTable().getDescriptorsIterator();
141 while(it.hasNext()) {
142 ClassDescriptor cn=(ClassDescriptor)it.next();
146 generateTaskStructs(outstructs, outmethodheader);
148 /* Outputs generic task structures if this is a task
150 outputTaskTypes(outtask);
153 /* Build the actual methods */
154 outputMethods(outmethod);
157 /* Output code for tasks */
158 outputTaskCode(outtaskdefs, outmethod);
160 /* Record maximum number of task parameters */
161 outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
162 } else if (state.main!=null) {
163 /* Generate main method */
164 outputMainMethod(outmethod);
167 /* Generate information for task with optional parameters */
168 if (state.TASK&&state.OPTIONAL){
169 generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
170 outoptionalarrays.close();
173 /* Output structure definitions for repair tool */
174 if (state.structfile!=null) {
175 buildRepairStructs(outrepairstructs);
176 outrepairstructs.close();
180 outmethodheader.println("#endif");
181 outmethodheader.close();
183 outstructs.println("#endif");
187 /* This code just generates the main C method for java programs.
188 * The main C method packs up the arguments into a string array
189 * and passes it to the java main method. */
191 private void outputMainMethod(PrintWriter outmethod) {
192 outmethod.println("int main(int argc, const char *argv[]) {");
193 outmethod.println(" int i;");
194 if (state.THREAD||state.DSM) {
195 outmethod.println("initializethreads();");
198 outmethod.println("if (dstmStartup(argv[1])) {");
199 if (GENERATEPRECISEGC) {
200 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-2);");
202 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-2);");
205 if (GENERATEPRECISEGC) {
206 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
208 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
212 outmethod.println(" for(i=2;i<argc;i++) {");
214 outmethod.println(" for(i=1;i<argc;i++) {");
215 outmethod.println(" int length=strlen(argv[i]);");
216 if (GENERATEPRECISEGC) {
217 outmethod.println(" struct ___String___ *newstring=NewString(NULL, argv[i], length);");
219 outmethod.println(" struct ___String___ *newstring=NewString(argv[i], length);");
222 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-2]=newstring;");
224 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
225 outmethod.println(" }");
228 MethodDescriptor md=typeutil.getMain();
229 ClassDescriptor cd=typeutil.getMainClass();
231 outmethod.println(" {");
232 if (GENERATEPRECISEGC) {
234 outmethod.print(" struct "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
236 outmethod.print(" struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
237 outmethod.println("1, NULL,"+"stringarray};");
239 outmethod.println(" "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
241 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
244 outmethod.println(" "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
246 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
248 outmethod.println(" }");
251 outmethod.println("}");
254 if (state.THREAD||state.DSM) {
255 outmethod.println("pthread_mutex_lock(&gclistlock);");
256 outmethod.println("threadcount--;");
257 outmethod.println("pthread_cond_signal(&gccond);");
258 outmethod.println("pthread_mutex_unlock(&gclistlock);");
260 outmethod.println("pthread_exit(NULL);");
264 outmethod.println("}");
267 /* This method outputs code for each task. */
269 private void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
270 /* Compile task based program */
271 outtaskdefs.println("#include \"task.h\"");
272 outtaskdefs.println("#include \"methodheaders.h\"");
273 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
274 while(taskit.hasNext()) {
275 TaskDescriptor td=(TaskDescriptor)taskit.next();
276 FlatMethod fm=state.getMethodFlat(td);
277 generateFlatMethod(fm, null, outmethod);
278 generateTaskDescriptor(outtaskdefs, fm, td);
281 //Output task descriptors
282 taskit=state.getTaskSymbolTable().getDescriptorsIterator();
283 outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
285 while(taskit.hasNext()) {
286 TaskDescriptor td=(TaskDescriptor)taskit.next();
290 outtaskdefs.println(",");
291 outtaskdefs.print("&task_"+td.getSafeSymbol());
293 outtaskdefs.println("};");
295 outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
298 /* This method outputs most of the methods.c file. This includes
299 * some standard includes and then an array with the sizes of
300 * objets and array that stores supertype and then the code for
301 * the Java methods.. */
303 private void outputMethods(PrintWriter outmethod) {
304 outmethod.println("#include \"methodheaders.h\"");
305 outmethod.println("#include \"virtualtable.h\"");
306 outmethod.println("#include <runtime.h>");
308 outmethod.println("#include \"localobjects.h\"");
310 if (state.THREAD||state.DSM)
311 outmethod.println("#include <thread.h>");
312 if (state.main!=null) {
313 outmethod.println("#include <string.h>");
315 if (state.CONSCHECK) {
316 outmethod.println("#include \"checkers.h\"");
318 //Store the sizes of classes & array elements
319 generateSizeArray(outmethod);
321 //Store table of supertypes
322 generateSuperTypeTable(outmethod);
324 //Store the layout of classes
325 generateLayoutStructs(outmethod);
327 /* Generate code for methods */
329 for(Iterator<LocalityBinding> lbit=locality.getLocalityBindings().iterator();lbit.hasNext();) {
330 LocalityBinding lb=lbit.next();
331 MethodDescriptor md=lb.getMethod();
332 FlatMethod fm=state.getMethodFlat(md);
333 if (!md.getModifiers().isNative()) {
334 generateFlatMethod(fm, lb, outmethod);
338 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
339 while(classit.hasNext()) {
340 ClassDescriptor cn=(ClassDescriptor)classit.next();
341 Iterator methodit=cn.getMethods();
342 while(methodit.hasNext()) {
343 /* Classify parameters */
344 MethodDescriptor md=(MethodDescriptor)methodit.next();
345 FlatMethod fm=state.getMethodFlat(md);
346 if (!md.getModifiers().isNative()) {
347 generateFlatMethod(fm, null, outmethod);
354 private void outputStructs(PrintWriter outstructs) {
355 outstructs.println("#ifndef STRUCTDEFS_H");
356 outstructs.println("#define STRUCTDEFS_H");
357 outstructs.println("#include \"classdefs.h\"");
359 /* Output #defines that the runtime uses to determine type
360 * numbers for various objects it needs */
361 outstructs.println("#define MAXCOUNT "+maxcount);
363 LocalityBinding lb=new LocalityBinding(typeutil.getRun(), false);
364 lb.setGlobalThis(LocalityAnalysis.GLOBAL);
365 outstructs.println("#define RUNMETHOD "+virtualcalls.getLocalityNumber(lb));
368 outstructs.println("#define STRINGARRAYTYPE "+
369 (state.getArrayNumber(
370 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
372 outstructs.println("#define OBJECTARRAYTYPE "+
373 (state.getArrayNumber(
374 (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
377 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
378 outstructs.println("#define CHARARRAYTYPE "+
379 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
381 outstructs.println("#define BYTEARRAYTYPE "+
382 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
384 outstructs.println("#define BYTEARRAYARRAYTYPE "+
385 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
387 outstructs.println("#define NUMCLASSES "+state.numClasses());
389 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
390 outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
391 outstructs.println("#define TAGARRAYTYPE "+
392 (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
396 private void outputClassDeclarations(PrintWriter outclassdefs) {
397 if (state.THREAD||state.DSM)
398 outclassdefs.println("#include <pthread.h>");
400 outclassdefs.println("#include \"optionalstruct.h\"");
401 outclassdefs.println("struct "+arraytype+";");
402 /* Start by declaring all structs */
403 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
404 while(it.hasNext()) {
405 ClassDescriptor cn=(ClassDescriptor)it.next();
406 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
408 outclassdefs.println("");
409 //Print out definition for array type
410 outclassdefs.println("struct "+arraytype+" {");
411 outclassdefs.println(" int type;");
413 outclassdefs.println(" pthread_t tid;");
414 outclassdefs.println(" void * lockentry;");
415 outclassdefs.println(" int lockcount;");
418 outclassdefs.println(" int flag;");
419 outclassdefs.println(" void * flagptr;");
421 outclassdefs.println(" int numfses;");
422 outclassdefs.println(" int * fses;");
425 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs);
427 outclassdefs.println(" int ___length___;");
428 outclassdefs.println("};\n");
429 outclassdefs.println("extern int classsize[];");
430 outclassdefs.println("extern int hasflags[];");
431 outclassdefs.println("extern unsigned int * pointerarray[];");
432 outclassdefs.println("extern int supertypes[];");
435 /** Prints out definitions for generic task structures */
437 private void outputTaskTypes(PrintWriter outtask) {
438 outtask.println("#ifndef _TASK_H");
439 outtask.println("#define _TASK_H");
440 outtask.println("struct parameterdescriptor {");
441 outtask.println("int type;");
442 outtask.println("int numberterms;");
443 outtask.println("int *intarray;");
444 outtask.println("void * queue;");
445 outtask.println("int numbertags;");
446 outtask.println("int *tagarray;");
447 outtask.println("};");
449 outtask.println("struct taskdescriptor {");
450 outtask.println("void * taskptr;");
451 outtask.println("int numParameters;");
452 outtask.println("int numTotal;");
453 outtask.println("struct parameterdescriptor **descriptorarray;");
454 outtask.println("char * name;");
455 outtask.println("};");
456 outtask.println("extern struct taskdescriptor * taskarray[];");
457 outtask.println("extern numtasks;");
458 outtask.println("#endif");
462 private void buildRepairStructs(PrintWriter outrepairstructs) {
463 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
464 while(classit.hasNext()) {
465 ClassDescriptor cn=(ClassDescriptor)classit.next();
466 outrepairstructs.println("structure "+cn.getSymbol()+" {");
467 outrepairstructs.println(" int __type__;");
469 outrepairstructs.println(" int __flag__;");
470 outrepairstructs.println(" int __flagptr__;");
472 printRepairStruct(cn, outrepairstructs);
473 outrepairstructs.println("}\n");
476 for(int i=0;i<state.numArrays();i++) {
477 TypeDescriptor tdarray=arraytable[i];
478 TypeDescriptor tdelement=tdarray.dereference();
479 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
480 outrepairstructs.println(" int __type__;");
481 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
482 outrepairstructs.println(" int length;");
484 // Need to add support to repair tool for this
485 if (tdelement.isClass()||tdelement.isArray())
486 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" * elem[this.length];");
488 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" elem[this.length];");
490 outrepairstructs.println("}\n");
494 private void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
495 ClassDescriptor sp=cn.getSuperDesc();
497 printRepairStruct(sp, output);
499 Vector fields=(Vector)fieldorder.get(cn);
501 for(int i=0;i<fields.size();i++) {
502 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
503 if (fd.getType().isArray()) {
504 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
505 } else if (fd.getType().isClass())
506 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
507 else if (fd.getType().isFloat())
508 output.println(" int "+fd.getSymbol()+"; /* really float */");
510 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
514 /** This method outputs TaskDescriptor information */
515 void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
516 for (int i=0;i<task.numParameters();i++) {
517 VarDescriptor param_var=task.getParameter(i);
518 TypeDescriptor param_type=task.getParamType(i);
519 FlagExpressionNode param_flag=task.getFlag(param_var);
520 TagExpressionList param_tag=task.getTag(param_var);
523 if (param_flag==null) {
524 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
525 output.println("0x0, 0x0 };");
528 DNFFlag dflag=param_flag.getDNF();
529 dnfterms=dflag.size();
531 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
532 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
533 for(int j=0;j<dflag.size();j++) {
536 Vector term=dflag.get(j);
539 for(int k=0;k<term.size();k++) {
540 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
541 FlagDescriptor fd=dfa.getFlag();
542 boolean negated=dfa.getNegated();
543 int flagid=1<<((Integer)flags.get(fd)).intValue();
548 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
550 output.println("};");
553 output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
554 //BUG...added next line to fix, test with any task program
556 for(int j=0;j<param_tag.numTags();j++) {
559 /* for each tag we need */
560 /* which slot it is */
561 /* what type it is */
562 TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
563 TempDescriptor tmp=param_tag.getTemp(j);
564 int slot=fm.getTagInt(tmp);
565 output.println(slot+", "+state.getTagId(tvd.getTag()));
567 output.println("};");
569 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
570 output.println("/* type */"+param_type.getClassDesc().getId()+",");
571 output.println("/* number of DNF terms */"+dnfterms+",");
572 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
573 output.println("0,");
574 //BUG, added next line to fix and else statement...test
575 //with any task program
577 output.println("/* number of tags */"+param_tag.numTags()+",");
579 output.println("/* number of tags */ 0,");
580 output.println("parametertag_"+i+"_"+task.getSafeSymbol());
581 output.println("};");
585 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
586 for (int i=0;i<task.numParameters();i++) {
589 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
591 output.println("};");
593 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
594 output.println("&"+task.getSafeSymbol()+",");
595 output.println("/* number of parameters */" +task.numParameters() + ",");
596 int numtotal=task.numParameters()+fm.numTags();
597 output.println("/* number total parameters */" +numtotal + ",");
598 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
599 output.println("\""+task.getSymbol()+"\"");
600 output.println("};");
604 /** The buildVirtualTables method outputs the virtual dispatch
605 * tables for methods. */
607 private void buildVirtualTables(PrintWriter outvirtual) {
608 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
609 while(classit.hasNext()) {
610 ClassDescriptor cd=(ClassDescriptor)classit.next();
611 if (virtualcalls.getMethodCount(cd)>maxcount)
612 maxcount=virtualcalls.getMethodCount(cd);
614 MethodDescriptor[][] virtualtable=null;
615 LocalityBinding[][] lbvirtualtable=null;
617 lbvirtualtable=new LocalityBinding[state.numClasses()+state.numArrays()][maxcount];
619 virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
621 /* Fill in virtual table */
622 classit=state.getClassSymbolTable().getDescriptorsIterator();
623 while(classit.hasNext()) {
624 ClassDescriptor cd=(ClassDescriptor)classit.next();
626 fillinRow(cd, lbvirtualtable, cd.getId());
628 fillinRow(cd, virtualtable, cd.getId());
631 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
632 Iterator arrayit=state.getArrayIterator();
633 while(arrayit.hasNext()) {
634 TypeDescriptor td=(TypeDescriptor)arrayit.next();
635 int id=state.getArrayNumber(td);
637 fillinRow(objectcd, lbvirtualtable, id+state.numClasses());
639 fillinRow(objectcd, virtualtable, id+state.numClasses());
642 outvirtual.print("void * virtualtable[]={");
643 boolean needcomma=false;
644 for(int i=0;i<state.numClasses()+state.numArrays();i++) {
645 for(int j=0;j<maxcount;j++) {
647 outvirtual.print(", ");
648 if (state.DSM&&lbvirtualtable[i][j]!=null) {
649 LocalityBinding lb=lbvirtualtable[i][j];
650 MethodDescriptor md=lb.getMethod();
651 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
652 } else if (!state.DSM&&virtualtable[i][j]!=null) {
653 MethodDescriptor md=virtualtable[i][j];
654 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
656 outvirtual.print("0");
660 outvirtual.println("");
662 outvirtual.println("};");
666 private void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
667 /* Get inherited methods */
668 if (cd.getSuperDesc()!=null)
669 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
670 /* Override them with our methods */
671 for(Iterator it=cd.getMethods();it.hasNext();) {
672 MethodDescriptor md=(MethodDescriptor)it.next();
673 if (md.isStatic()||md.getReturnType()==null)
675 int methodnum=virtualcalls.getMethodNumber(md);
676 virtualtable[rownum][methodnum]=md;
680 private void fillinRow(ClassDescriptor cd, LocalityBinding[][] virtualtable, int rownum) {
681 /* Get inherited methods */
682 if (cd.getSuperDesc()!=null)
683 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
684 /* Override them with our methods */
685 if (locality.getClassBindings(cd)!=null)
686 for(Iterator<LocalityBinding> lbit=locality.getClassBindings(cd).iterator();lbit.hasNext();) {
687 LocalityBinding lb=lbit.next();
688 MethodDescriptor md=lb.getMethod();
689 //Is the method static or a constructor
690 if (md.isStatic()||md.getReturnType()==null)
692 int methodnum=virtualcalls.getLocalityNumber(lb);
693 virtualtable[rownum][methodnum]=lb;
698 /** Generate array that contains the sizes of class objects. The
699 * object allocation functions in the runtime use this
702 private void generateSizeArray(PrintWriter outclassdefs) {
703 outclassdefs.print("int classsize[]={");
704 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
705 cdarray=new ClassDescriptor[state.numClasses()];
706 while(it.hasNext()) {
707 ClassDescriptor cd=(ClassDescriptor)it.next();
708 cdarray[cd.getId()]=cd;
710 boolean needcomma=false;
711 for(int i=0;i<state.numClasses();i++) {
713 outclassdefs.print(", ");
714 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
718 arraytable=new TypeDescriptor[state.numArrays()];
720 Iterator arrayit=state.getArrayIterator();
721 while(arrayit.hasNext()) {
722 TypeDescriptor td=(TypeDescriptor)arrayit.next();
723 int id=state.getArrayNumber(td);
727 for(int i=0;i<state.numArrays();i++) {
729 outclassdefs.print(", ");
730 TypeDescriptor tdelement=arraytable[i].dereference();
731 if (tdelement.isArray()||tdelement.isClass())
732 outclassdefs.print("sizeof(void *)");
734 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
738 outclassdefs.println("};");
741 /** Constructs params and temp objects for each method or task.
742 * These objects tell the compiler which temps need to be
745 private void generateTempStructs(FlatMethod fm, LocalityBinding lb) {
746 MethodDescriptor md=fm.getMethod();
747 TaskDescriptor task=fm.getTask();
748 Set<TempDescriptor> saveset=lb!=null?locality.getTempSet(lb):null;
749 ParamsObject objectparams=md!=null?new ParamsObject(md,tag++):new ParamsObject(task, tag++);
752 paramstable.put(lb, objectparams);
754 paramstable.put(md, objectparams);
756 paramstable.put(task, objectparams);
758 for(int i=0;i<fm.numParameters();i++) {
759 TempDescriptor temp=fm.getParameter(i);
760 TypeDescriptor type=temp.getType();
761 if (type.isPtr()&&GENERATEPRECISEGC)
762 objectparams.addPtr(temp);
764 objectparams.addPrim(temp);
765 if(lb!=null&&saveset.contains(temp)) {
766 backuptable.put(temp, temp.createNew());
770 for(int i=0;i<fm.numTags();i++) {
771 TempDescriptor temp=fm.getTag(i);
772 if (GENERATEPRECISEGC)
773 objectparams.addPtr(temp);
775 objectparams.addPrim(temp);
778 TempObject objecttemps=md!=null?new TempObject(objectparams,md,tag++):new TempObject(objectparams, task, tag++);
780 tempstable.put(lb, objecttemps);
782 tempstable.put(md, objecttemps);
784 tempstable.put(task, objecttemps);
786 for(Iterator nodeit=fm.getNodeSet().iterator();nodeit.hasNext();) {
787 FlatNode fn=(FlatNode)nodeit.next();
788 TempDescriptor[] writes=fn.writesTemps();
789 for(int i=0;i<writes.length;i++) {
790 TempDescriptor temp=writes[i];
791 TypeDescriptor type=temp.getType();
792 if (type.isPtr()&&GENERATEPRECISEGC)
793 objecttemps.addPtr(temp);
795 objecttemps.addPrim(temp);
796 if(lb!=null&&saveset.contains(temp)&&
797 !backuptable.containsKey(temp))
798 backuptable.put(temp, temp.createNew());
802 /* Create backup temps */
804 for(Iterator<TempDescriptor> tmpit=backuptable.values().iterator();tmpit.hasNext();) {
805 TempDescriptor tmp=tmpit.next();
806 TypeDescriptor type=tmp.getType();
807 if (type.isPtr()&&GENERATEPRECISEGC)
808 objecttemps.addPtr(tmp);
810 objecttemps.addPrim(tmp);
812 /* Create temp to hold revert table */
813 if (lb.getHasAtomic()||lb.isAtomic()) {
814 TempDescriptor reverttmp=new TempDescriptor("revertlist", typeutil.getClass(TypeUtil.ObjectClass));
815 if (GENERATEPRECISEGC)
816 objecttemps.addPtr(reverttmp);
818 objecttemps.addPrim(reverttmp);
819 reverttable.put(lb, reverttmp);
824 /** This method outputs the following information about classes
826 * (1) For classes, what are the locations of pointers.
827 * (2) For arrays, does the array contain pointers or primitives.
828 * (3) For classes, does the class contain flags.
831 private void generateLayoutStructs(PrintWriter output) {
832 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
833 while(it.hasNext()) {
834 ClassDescriptor cn=(ClassDescriptor)it.next();
835 output.println("unsigned int "+cn.getSafeSymbol()+"_pointers[]={");
836 Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
838 while(allit.hasNext()) {
839 FieldDescriptor fd=(FieldDescriptor)allit.next();
840 TypeDescriptor type=fd.getType();
841 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
847 allit=cn.getFieldTable().getAllDescriptorsIterator();
848 while(allit.hasNext()) {
849 FieldDescriptor fd=(FieldDescriptor)allit.next();
850 TypeDescriptor type=fd.getType();
851 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
855 output.print("((unsigned int)&(((struct "+cn.getSafeSymbol() +" *)0)->"+fd.getSafeSymbol()+"))");
858 output.println("};");
860 output.println("unsigned int * pointerarray[]={");
861 boolean needcomma=false;
862 for(int i=0;i<state.numClasses();i++) {
863 ClassDescriptor cn=cdarray[i];
867 output.print(cn.getSafeSymbol()+"_pointers");
870 for(int i=0;i<state.numArrays();i++) {
872 output.println(", ");
873 TypeDescriptor tdelement=arraytable[i].dereference();
874 if (tdelement.isArray()||tdelement.isClass())
875 output.print("((unsigned int *)1)");
881 output.println("};");
883 output.println("int hasflags[]={");
884 for(int i=0;i<state.numClasses();i++) {
885 ClassDescriptor cn=cdarray[i];
887 output.println(", ");
894 output.println("};");
897 /** Print out table to give us supertypes */
898 private void generateSuperTypeTable(PrintWriter output) {
899 output.println("int supertypes[]={");
900 boolean needcomma=false;
901 for(int i=0;i<state.numClasses();i++) {
902 ClassDescriptor cn=cdarray[i];
906 if (cn.getSuperDesc()!=null) {
907 ClassDescriptor cdsuper=cn.getSuperDesc();
908 output.print(cdsuper.getId());
912 output.println("};");
915 /** Force consistent field ordering between inherited classes. */
917 private void printClassStruct(ClassDescriptor cn, PrintWriter classdefout) {
919 ClassDescriptor sp=cn.getSuperDesc();
921 printClassStruct(sp, classdefout);
923 if (!fieldorder.containsKey(cn)) {
924 Vector fields=new Vector();
925 fieldorder.put(cn,fields);
926 if (sp==null&&!state.TASK) {
927 fields.add(cn.getFieldTable().get("cachedCode"));
929 Iterator fieldit=cn.getFields();
930 while(fieldit.hasNext()) {
931 FieldDescriptor fd=(FieldDescriptor)fieldit.next();
932 if ((sp==null||!sp.getFieldTable().contains(fd.getSymbol()))&&
933 (!fd.getSymbol().equals("cachedCode")||state.TASK))
937 Vector fields=(Vector)fieldorder.get(cn);
939 for(int i=0;i<fields.size();i++) {
940 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
941 if (fd.getType().isClass()||fd.getType().isArray())
942 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
944 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
949 /* Map flags to integers consistently between inherited
952 private void mapFlags(ClassDescriptor cn) {
953 ClassDescriptor sp=cn.getSuperDesc();
957 if (!flagorder.containsKey(cn)) {
958 Hashtable flags=new Hashtable();
959 flagorder.put(cn,flags);
961 Hashtable superflags=(Hashtable)flagorder.get(sp);
962 Iterator superflagit=superflags.keySet().iterator();
963 while(superflagit.hasNext()) {
964 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
965 Integer number=(Integer)superflags.get(fd);
966 flags.put(fd, number);
967 if ((number.intValue()+1)>max)
968 max=number.intValue()+1;
972 Iterator flagit=cn.getFlags();
973 while(flagit.hasNext()) {
974 FlagDescriptor fd=(FlagDescriptor)flagit.next();
975 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
976 flags.put(fd, new Integer(max++));
982 /** This function outputs (1) structures that parameters are
983 * passed in (when PRECISE GC is enabled) and (2) function
984 * prototypes for the methods */
986 private void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
987 /* Output class structure */
988 classdefout.println("struct "+cn.getSafeSymbol()+" {");
989 classdefout.println(" int type;");
991 classdefout.println(" pthread_t tid;");
992 classdefout.println(" void * lockentry;");
993 classdefout.println(" int lockcount;");
997 classdefout.println(" int flag;");
998 classdefout.println(" void * flagptr;");
1000 classdefout.println(" int numfses;");
1001 classdefout.println(" int * fses;");
1004 printClassStruct(cn, classdefout);
1005 classdefout.println("};\n");
1008 /* Cycle through LocalityBindings */
1009 HashSet<MethodDescriptor> nativemethods=new HashSet<MethodDescriptor>();
1010 Set<LocalityBinding> lbset=locality.getClassBindings(cn);
1012 for(Iterator<LocalityBinding> lbit=lbset.iterator();lbit.hasNext();) {
1013 LocalityBinding lb=lbit.next();
1014 MethodDescriptor md=lb.getMethod();
1015 if (md.getModifiers().isNative()) {
1016 //make sure we only print a native method once
1017 if (nativemethods.contains(md)) {
1018 FlatMethod fm=state.getMethodFlat(md);
1019 generateTempStructs(fm, lb);
1022 nativemethods.add(md);
1024 generateMethod(cn, md, lb, headersout, output);
1027 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1028 MethodDescriptor md=(MethodDescriptor)methodit.next();
1029 if (md.getModifiers().isNative()&&!nativemethods.contains(md)) {
1030 //Need to build param structure for library code
1031 FlatMethod fm=state.getMethodFlat(md);
1032 generateTempStructs(fm, null);
1033 generateMethodParam(cn, md, null, output);
1038 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1039 MethodDescriptor md=(MethodDescriptor)methodit.next();
1040 generateMethod(cn, md, null, headersout, output);
1044 private void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter output) {
1045 /* Output parameter structure */
1046 if (GENERATEPRECISEGC) {
1047 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1048 if (state.DSM&&lb!=null)
1049 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1051 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1052 output.println(" int size;");
1053 output.println(" void * next;");
1054 for(int i=0;i<objectparams.numPointers();i++) {
1055 TempDescriptor temp=objectparams.getPointer(i);
1056 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1058 output.println("};\n");
1063 private void generateMethod(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter headersout, PrintWriter output) {
1064 FlatMethod fm=state.getMethodFlat(md);
1065 generateTempStructs(fm, lb);
1067 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1068 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md);
1070 generateMethodParam(cn, md, lb, output);
1072 /* Output temp structure */
1073 if (GENERATEPRECISEGC) {
1075 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1077 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1078 output.println(" int size;");
1079 output.println(" void * next;");
1080 for(int i=0;i<objecttemps.numPointers();i++) {
1081 TempDescriptor temp=objecttemps.getPointer(i);
1082 if (temp.getType().isNull())
1083 output.println(" void * "+temp.getSafeSymbol()+";");
1085 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1087 output.println("};\n");
1090 /********* Output method declaration ***********/
1092 /* First the return type */
1093 if (md.getReturnType()!=null) {
1094 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1095 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1097 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1099 //catch the constructor case
1100 headersout.print("void ");
1102 /* Next the method name */
1104 headersout.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1106 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1108 boolean printcomma=false;
1109 if (GENERATEPRECISEGC) {
1111 headersout.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1113 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1117 if (state.DSM&&lb.isAtomic()) {
1119 headersout.print(", ");
1120 headersout.print("transrecord_t * trans");
1124 /* Output parameter list*/
1125 for(int i=0;i<objectparams.numPrimitives();i++) {
1126 TempDescriptor temp=objectparams.getPrimitive(i);
1128 headersout.print(", ");
1130 if (temp.getType().isClass()||temp.getType().isArray())
1131 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1133 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1135 headersout.println(");\n");
1139 /** This function outputs (1) structures that parameters are
1140 * passed in (when PRECISE GC is enabled) and (2) function
1141 * prototypes for the tasks */
1143 private void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1144 /* Cycle through tasks */
1145 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1147 while(taskit.hasNext()) {
1148 /* Classify parameters */
1149 TaskDescriptor task=(TaskDescriptor)taskit.next();
1150 FlatMethod fm=state.getMethodFlat(task);
1151 generateTempStructs(fm, null);
1153 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1154 TempObject objecttemps=(TempObject) tempstable.get(task);
1156 /* Output parameter structure */
1157 if (GENERATEPRECISEGC) {
1158 output.println("struct "+task.getSafeSymbol()+"_params {");
1160 output.println(" int size;");
1161 output.println(" void * next;");
1162 for(int i=0;i<objectparams.numPointers();i++) {
1163 TempDescriptor temp=objectparams.getPointer(i);
1164 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1167 output.println("};\n");
1168 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1169 maxtaskparams=objectparams.numPointers()+fm.numTags();
1173 /* Output temp structure */
1174 if (GENERATEPRECISEGC) {
1175 output.println("struct "+task.getSafeSymbol()+"_locals {");
1176 output.println(" int size;");
1177 output.println(" void * next;");
1178 for(int i=0;i<objecttemps.numPointers();i++) {
1179 TempDescriptor temp=objecttemps.getPointer(i);
1180 if (temp.getType().isNull())
1181 output.println(" void * "+temp.getSafeSymbol()+";");
1182 else if(temp.getType().isTag())
1183 output.println(" struct "+
1184 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1186 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1188 output.println("};\n");
1191 /* Output task declaration */
1192 headersout.print("void " + task.getSafeSymbol()+"(");
1194 boolean printcomma=false;
1195 if (GENERATEPRECISEGC) {
1196 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1198 headersout.print("void * parameterarray[]");
1199 headersout.println(");\n");
1203 /***** Generate code for FlatMethod fm. *****/
1205 private void generateFlatMethod(FlatMethod fm, LocalityBinding lb, PrintWriter output) {
1206 if (State.PRINTFLAT)
1207 System.out.println(fm.printMethod());
1208 MethodDescriptor md=fm.getMethod();
1210 TaskDescriptor task=fm.getTask();
1212 ClassDescriptor cn=md!=null?md.getClassDesc():null;
1214 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:md!=null?md:task);
1215 generateHeader(fm, lb, md!=null?md:task,output);
1216 TempObject objecttemp=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1217 if (state.DSM&&lb.getHasAtomic()) {
1218 output.println("transrecord_t * trans;");
1221 if (GENERATEPRECISEGC) {
1222 if (md!=null&&state.DSM)
1223 output.print(" struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1224 else if (md!=null&&!state.DSM)
1225 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1227 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
1229 output.print(objecttemp.numPointers()+",");
1230 output.print(paramsprefix);
1231 for(int j=0;j<objecttemp.numPointers();j++)
1232 output.print(", NULL");
1233 output.println("};");
1236 for(int i=0;i<objecttemp.numPrimitives();i++) {
1237 TempDescriptor td=objecttemp.getPrimitive(i);
1238 TypeDescriptor type=td.getType();
1240 output.println(" void * "+td.getSafeSymbol()+";");
1241 else if (type.isClass()||type.isArray())
1242 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1244 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1247 /* Assign labels to FlatNode's if necessary.*/
1249 Hashtable<FlatNode, Integer> nodetolabel=assignLabels(fm);
1251 /* Check to see if we need to do a GC if this is a
1252 * multi-threaded program...*/
1254 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1255 if (state.DSM&&lb.isAtomic())
1256 output.println("checkcollect2(&"+localsprefix+",trans);");
1258 output.println("checkcollect(&"+localsprefix+");");
1261 /* Do the actual code generation */
1262 FlatNode current_node=null;
1263 HashSet tovisit=new HashSet();
1264 HashSet visited=new HashSet();
1265 tovisit.add(fm.getNext(0));
1266 while(current_node!=null||!tovisit.isEmpty()) {
1267 if (current_node==null) {
1268 current_node=(FlatNode)tovisit.iterator().next();
1269 tovisit.remove(current_node);
1271 visited.add(current_node);
1272 if (nodetolabel.containsKey(current_node))
1273 output.println("L"+nodetolabel.get(current_node)+":");
1274 if (state.INSTRUCTIONFAILURE) {
1275 if (state.THREAD||state.DSM) {
1276 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
1279 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
1281 if (current_node.numNext()==0) {
1283 generateFlatNode(fm, lb, current_node, output);
1284 if (current_node.kind()!=FKind.FlatReturnNode) {
1285 output.println(" return;");
1288 } else if(current_node.numNext()==1) {
1290 generateFlatNode(fm, lb, current_node, output);
1291 FlatNode nextnode=current_node.getNext(0);
1292 if (visited.contains(nextnode)) {
1293 output.println("goto L"+nodetolabel.get(nextnode)+";");
1296 current_node=nextnode;
1297 } else if (current_node.numNext()==2) {
1300 generateFlatCondBranch(fm, lb, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
1301 if (!visited.contains(current_node.getNext(1)))
1302 tovisit.add(current_node.getNext(1));
1303 if (visited.contains(current_node.getNext(0))) {
1304 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
1307 current_node=current_node.getNext(0);
1308 } else throw new Error();
1310 output.println("}\n\n");
1313 /** This method assigns labels to FlatNodes */
1315 private Hashtable<FlatNode, Integer> assignLabels(FlatMethod fm) {
1316 HashSet tovisit=new HashSet();
1317 HashSet visited=new HashSet();
1319 Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
1320 tovisit.add(fm.getNext(0));
1322 /*Assign labels first. A node needs a label if the previous
1323 * node has two exits or this node is a join point. */
1325 while(!tovisit.isEmpty()) {
1326 FlatNode fn=(FlatNode)tovisit.iterator().next();
1329 for(int i=0;i<fn.numNext();i++) {
1330 FlatNode nn=fn.getNext(i);
1332 //1) Edge >1 of node
1333 nodetolabel.put(nn,new Integer(labelindex++));
1335 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1339 nodetolabel.put(nn,new Integer(labelindex++));
1347 /** Generate text string that corresponds to the TempDescriptor td. */
1348 private String generateTemp(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1349 MethodDescriptor md=fm.getMethod();
1350 TaskDescriptor task=fm.getTask();
1351 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1353 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1354 return td.getSafeSymbol();
1357 if (objecttemps.isLocalPtr(td)) {
1358 return localsprefix+"."+td.getSafeSymbol();
1361 if (objecttemps.isParamPtr(td)) {
1362 return paramsprefix+"->"+td.getSafeSymbol();
1367 private void generateFlatNode(FlatMethod fm, LocalityBinding lb, FlatNode fn, PrintWriter output) {
1369 case FKind.FlatAtomicEnterNode:
1370 generateFlatAtomicEnterNode(fm, lb, (FlatAtomicEnterNode) fn, output);
1372 case FKind.FlatAtomicExitNode:
1373 generateFlatAtomicExitNode(fm, lb, (FlatAtomicExitNode) fn, output);
1375 case FKind.FlatGlobalConvNode:
1376 generateFlatGlobalConvNode(fm, lb, (FlatGlobalConvNode) fn, output);
1378 case FKind.FlatTagDeclaration:
1379 generateFlatTagDeclaration(fm, lb, (FlatTagDeclaration) fn,output);
1381 case FKind.FlatCall:
1382 generateFlatCall(fm, lb, (FlatCall) fn,output);
1384 case FKind.FlatFieldNode:
1385 generateFlatFieldNode(fm, lb, (FlatFieldNode) fn,output);
1387 case FKind.FlatElementNode:
1388 generateFlatElementNode(fm, lb, (FlatElementNode) fn,output);
1390 case FKind.FlatSetElementNode:
1391 generateFlatSetElementNode(fm, lb, (FlatSetElementNode) fn,output);
1393 case FKind.FlatSetFieldNode:
1394 generateFlatSetFieldNode(fm, lb, (FlatSetFieldNode) fn,output);
1397 generateFlatNew(fm, lb, (FlatNew) fn,output);
1399 case FKind.FlatOpNode:
1400 generateFlatOpNode(fm, lb, (FlatOpNode) fn,output);
1402 case FKind.FlatCastNode:
1403 generateFlatCastNode(fm, lb, (FlatCastNode) fn,output);
1405 case FKind.FlatLiteralNode:
1406 generateFlatLiteralNode(fm, lb, (FlatLiteralNode) fn,output);
1408 case FKind.FlatReturnNode:
1409 generateFlatReturnNode(fm, lb, (FlatReturnNode) fn,output);
1412 output.println("/* nop */");
1414 case FKind.FlatBackEdge:
1415 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1416 if(state.DSM&&locality.getAtomic(lb).get(fn).intValue()>0) {
1417 output.println("checkcollect2(&"+localsprefix+",trans);");
1419 output.println("checkcollect(&"+localsprefix+");");
1421 output.println("/* nop */");
1423 case FKind.FlatCheckNode:
1424 generateFlatCheckNode(fm, lb, (FlatCheckNode) fn, output);
1426 case FKind.FlatFlagActionNode:
1427 generateFlatFlagActionNode(fm, lb, (FlatFlagActionNode) fn, output);
1429 case FKind.FlatPrefetchNode:
1430 generateFlatPrefetchNode(fm,lb, (FlatPrefetchNode) fn, output);
1436 public void generateFlatPrefetchNode(FlatMethod fm, LocalityBinding lb, FlatPrefetchNode fpn, PrintWriter output) {
1437 if (state.PREFETCH) {
1438 Vector oids = new Vector();
1439 Vector fieldoffset = new Vector();
1440 Vector endoffset = new Vector();
1441 int tuplecount = 0; //Keeps track of number of prefetch tuples that need to be generated
1442 for(Iterator it = fpn.hspp.iterator();it.hasNext();) {
1443 PrefetchPair pp = (PrefetchPair) it.next();
1444 Integer statusbase = locality.getNodePreTempInfo(lb,fpn).get(pp.base);
1445 /* Find prefetches that can generate oid */
1446 if(statusbase == LocalityAnalysis.GLOBAL) {
1447 generateTransCode(fm, lb, pp, oids, fieldoffset, endoffset, tuplecount, locality.getAtomic(lb).get(fpn).intValue()>0, false);
1449 } else if (statusbase == LocalityAnalysis.LOCAL) {
1450 generateTransCode(fm,lb,pp,oids,fieldoffset,endoffset,tuplecount,false,true);
1457 output.println("{");
1458 output.println("/* prefetch */");
1459 output.println("void * prefptr;");
1460 output.println("int tmpindex;");
1461 /*Create C code for oid array */
1462 output.print(" unsigned int oidarray_[] = {");
1463 boolean needcomma=false;
1464 for (Iterator it = oids.iterator();it.hasNext();) {
1467 output.print(it.next());
1470 output.println("};");
1472 /*Create C code for endoffset values */
1473 output.print(" unsigned short endoffsetarry_[] = {");
1475 for (Iterator it = endoffset.iterator();it.hasNext();) {
1478 output.print(it.next());
1481 output.println("};");
1483 /*Create C code for Field Offset Values */
1484 output.print(" short fieldarry_[] = {");
1486 for (Iterator it = fieldoffset.iterator();it.hasNext();) {
1489 output.print(it.next());
1492 output.println("};");
1493 /* make the prefetch call to Runtime */
1494 output.println(" prefetch("+tuplecount+", oidarray_, endoffsetarry_, fieldarry_);");
1495 output.println("}");
1499 public void generateTransCode(FlatMethod fm, LocalityBinding lb,PrefetchPair pp, Vector oids, Vector fieldoffset, Vector endoffset, int tuplecount, boolean inside, boolean localbase) {
1500 short offsetcount = 0;
1504 } else if (localbase) {
1505 for(;breakindex<pp.desc.size();breakindex++) {
1506 Descriptor desc=pp.getDescAt(breakindex);
1507 if (desc instanceof FieldDescriptor) {
1508 FieldDescriptor fd=(FieldDescriptor)desc;
1509 if (fd.isGlobal()) {
1517 if (breakindex>pp.desc.size()) //all local
1520 TypeDescriptor lasttype=pp.base.getType();
1521 String basestr=generateTemp(fm, pp.base, lb);
1523 boolean maybenull=fm.getMethod().isStatic()||
1524 !pp.base.equals(fm.getParameter(0));
1526 for(int i=0;i<breakindex;i++) {
1527 String indexcheck="";
1529 Descriptor desc=pp.getDescAt(i);
1530 if (desc instanceof FieldDescriptor) {
1531 FieldDescriptor fd=(FieldDescriptor)desc;
1533 if (!teststr.equals(""))
1535 teststr+="prefptr="+basestr;
1536 basestr="((struct"+lasttype.getSafeSymbol()+"*)prefptr)->"+fd.getSafeSymbol();
1538 basestr=basestr+"->"+fd.getSafeSymbol();
1541 lasttype=fd.getType();
1543 IndexDescriptor id=(IndexDescriptor)desc;
1544 indexcheck="(tmpindex=";
1545 for(int j=0;j<id.tddesc.size();j++) {
1546 indexcheck+=generateTemp(fm, id.getTempDescAt(j), lb)+"+";
1548 indexcheck+=id.offset+">=0)&&(tmpindex<((struct ArrayObject *)prefptr)->___length___)";
1550 if (!teststr.equals(""))
1552 teststr+="(((prefptr="+basestr+")!= NULL) &&"+indexcheck;
1553 basestr="((void **)(((char *) &(((struct ArrayObject*)prefptr)->___length___))+sizeof(int)))[tmpindex]";
1555 lasttype=lasttype.dereference();
1560 if (teststr.equals("")) {
1561 oid="((unsigned int)"+basestr+")";
1563 oid="(unsigned int)("+teststr+")?"+basestr+":NULL)";
1567 for(int i = breakindex; i < pp.desc.size(); i++) {
1568 String newfieldoffset;
1569 Object desc = pp.getDescAt(i);
1570 if(desc instanceof FieldDescriptor) {
1571 FieldDescriptor fd=(FieldDescriptor)desc;
1572 newfieldoffset = new String("(unsigned int)(&(((struct "+ lasttype.getSafeSymbol()+" *)0)->"+ fd.getSafeSymbol()+ "))");
1573 lasttype=fd.getType();
1575 newfieldoffset = "";
1576 IndexDescriptor id=(IndexDescriptor)desc;
1577 for(int j = 0; j < id.tddesc.size(); j++) {
1578 newfieldoffset += generateTemp(fm, id.getTempDescAt(j), lb) + "+";
1580 newfieldoffset += id.offset.toString();
1581 lasttype=lasttype.dereference();
1583 fieldoffset.add(newfieldoffset);
1586 int base=(tuplecount>0)?((Short)endoffset.get(tuplecount-1)).intValue():0;
1587 base+=pp.desc.size()-breakindex;
1588 endoffset.add(new Short((short)base));
1593 public void generateFlatGlobalConvNode(FlatMethod fm, LocalityBinding lb, FlatGlobalConvNode fgcn, PrintWriter output) {
1594 if (lb!=fgcn.getLocality())
1596 /* Have to generate flat globalconv */
1597 if (fgcn.getMakePtr()) {
1598 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)transRead(trans, (unsigned int) "+generateTemp(fm, fgcn.getSrc(),lb)+");");
1600 /* Need to convert to OID */
1601 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)COMPOID("+generateTemp(fm, fgcn.getSrc(),lb)+");");
1605 public void generateFlatAtomicEnterNode(FlatMethod fm, LocalityBinding lb, FlatAtomicEnterNode faen, PrintWriter output) {
1606 /* Check to see if we need to generate code for this atomic */
1607 if (locality.getAtomic(lb).get(faen.getPrev(0)).intValue()>0)
1609 /* Backup the temps. */
1610 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1611 TempDescriptor tmp=tmpit.next();
1612 output.println(generateTemp(fm, backuptable.get(tmp),lb)+"="+generateTemp(fm,tmp,lb)+";");
1614 output.println("goto transstart"+faen.getIdentifier()+";");
1616 /******* Print code to retry aborted transaction *******/
1617 output.println("transretry"+faen.getIdentifier()+":");
1620 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1621 TempDescriptor tmp=tmpit.next();
1622 output.println(generateTemp(fm, tmp,lb)+"="+generateTemp(fm,backuptable.get(tmp),lb)+";");
1625 /********* Need to revert local object store ********/
1626 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1628 output.println("while ("+revertptr+") {");
1629 output.println("struct ___Object___ * tmpptr;");
1630 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1631 output.println("REVERT_OBJ("+revertptr+");");
1632 output.println(revertptr+"=tmpptr;");
1633 output.println("}");
1635 /******* Tell the runtime to start the transaction *******/
1637 output.println("transstart"+faen.getIdentifier()+":");
1638 output.println("trans=transStart();");
1641 public void generateFlatAtomicExitNode(FlatMethod fm, LocalityBinding lb, FlatAtomicExitNode faen, PrintWriter output) {
1642 /* Check to see if we need to generate code for this atomic */
1643 if (locality.getAtomic(lb).get(faen).intValue()>0)
1645 //store the revert list before we lose the transaction object
1646 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1647 output.println(revertptr+"=trans->revertlist;");
1648 output.println("if (transCommit(trans)) {");
1649 /* Transaction aborts if it returns true */
1650 output.println("goto transretry"+faen.getAtomicEnter().getIdentifier()+";");
1651 output.println("} else {");
1652 /* Need to commit local object store */
1653 output.println("while ("+revertptr+") {");
1654 output.println("struct ___Object___ * tmpptr;");
1655 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1656 output.println("COMMIT_OBJ("+revertptr+");");
1657 output.println(revertptr+"=tmpptr;");
1658 output.println("}");
1659 output.println("}");
1662 private void generateFlatCheckNode(FlatMethod fm, LocalityBinding lb, FlatCheckNode fcn, PrintWriter output) {
1663 if (state.CONSCHECK) {
1664 String specname=fcn.getSpec();
1665 String varname="repairstate___";
1666 output.println("{");
1667 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1669 TempDescriptor[] temps=fcn.getTemps();
1670 String[] vars=fcn.getVars();
1671 for(int i=0;i<temps.length;i++) {
1672 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i],lb)+";");
1675 output.println("if (doanalysis"+specname+"("+varname+")) {");
1676 output.println("free"+specname+"_state("+varname+");");
1677 output.println("} else {");
1678 output.println("/* Bad invariant */");
1679 output.println("free"+specname+"_state("+varname+");");
1680 output.println("abort_task();");
1681 output.println("}");
1682 output.println("}");
1686 private void generateFlatCall(FlatMethod fm, LocalityBinding lb, FlatCall fc, PrintWriter output) {
1687 MethodDescriptor md=fc.getMethod();
1688 ParamsObject objectparams=(ParamsObject)paramstable.get(state.DSM?locality.getBinding(lb, fc):md);
1689 ClassDescriptor cn=md.getClassDesc();
1690 output.println("{");
1691 if (GENERATEPRECISEGC) {
1693 LocalityBinding fclb=locality.getBinding(lb, fc);
1694 output.print(" struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1696 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1698 output.print(objectparams.numPointers());
1699 output.print(", & "+localsprefix);
1700 if (fc.getThis()!=null) {
1702 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis(),lb));
1704 for(int i=0;i<fc.numArgs();i++) {
1705 Descriptor var=md.getParameter(i);
1706 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1707 if (objectparams.isParamPtr(paramtemp)) {
1708 TempDescriptor targ=fc.getArg(i);
1710 TypeDescriptor td=md.getParamType(i);
1712 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1714 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1717 output.println("};");
1722 if (fc.getReturnTemp()!=null)
1723 output.print(generateTemp(fm,fc.getReturnTemp(),lb)+"=");
1725 /* Do we need to do virtual dispatch? */
1726 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
1729 LocalityBinding fclb=locality.getBinding(lb, fc);
1730 output.print(cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1732 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1737 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1738 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1740 output.print(md.getReturnType().getSafeSymbol()+" ");
1741 output.print("(*)(");
1743 boolean printcomma=false;
1744 if (GENERATEPRECISEGC) {
1746 LocalityBinding fclb=locality.getBinding(lb, fc);
1747 output.print("struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1749 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1753 for(int i=0;i<objectparams.numPrimitives();i++) {
1754 TempDescriptor temp=objectparams.getPrimitive(i);
1758 if (temp.getType().isClass()||temp.getType().isArray())
1759 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
1761 output.print(temp.getType().getSafeSymbol());
1765 LocalityBinding fclb=locality.getBinding(lb, fc);
1766 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getLocalityNumber(fclb)+"])");
1768 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
1772 boolean needcomma=false;
1773 if (GENERATEPRECISEGC) {
1774 output.print("&__parameterlist__");
1778 if (state.DSM&&locality.getBinding(lb,fc).isAtomic()) {
1781 output.print("trans");
1785 if (!GENERATEPRECISEGC) {
1786 if (fc.getThis()!=null) {
1787 TypeDescriptor ptd=md.getThis().getType();
1790 if (ptd.isClass()&&!ptd.isArray())
1791 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1792 output.print(generateTemp(fm,fc.getThis(),lb));
1797 for(int i=0;i<fc.numArgs();i++) {
1798 Descriptor var=md.getParameter(i);
1799 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1800 if (objectparams.isParamPrim(paramtemp)) {
1801 TempDescriptor targ=fc.getArg(i);
1805 TypeDescriptor ptd=md.getParamType(i);
1806 if (ptd.isClass()&&!ptd.isArray())
1807 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1808 output.print(generateTemp(fm, targ,lb));
1812 output.println(");");
1813 output.println(" }");
1816 private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
1817 Set subclasses=typeutil.getSubClasses(thiscd);
1818 if (subclasses==null)
1820 for(Iterator classit=subclasses.iterator();classit.hasNext();) {
1821 ClassDescriptor cd=(ClassDescriptor)classit.next();
1822 Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
1823 for(Iterator matchit=possiblematches.iterator();matchit.hasNext();) {
1824 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
1825 if (md.matches(matchmd))
1832 private void generateFlatFieldNode(FlatMethod fm, LocalityBinding lb, FlatFieldNode ffn, PrintWriter output) {
1834 Integer status=locality.getNodePreTempInfo(lb,ffn).get(ffn.getSrc());
1835 if (status==LocalityAnalysis.GLOBAL) {
1836 String field=ffn.getField().getSafeSymbol();
1837 String src=generateTemp(fm, ffn.getSrc(),lb);
1838 String dst=generateTemp(fm, ffn.getDst(),lb);
1840 if (ffn.getField().getType().isPtr()) {
1842 //TODO: Uncomment this when we have runtime support
1843 //if (ffn.getSrc()==ffn.getDst()) {
1844 //output.println("{");
1845 //output.println("void * temp="+src+";");
1846 //output.println("if (temp&0x1) {");
1847 //output.println("temp=(void *) transRead(trans, (unsigned int) temp);");
1848 //output.println(src+"->"+field+"="+temp+";");
1849 //output.println("}");
1850 //output.println(dst+"=temp;");
1851 //output.println("}");
1853 output.println(dst+"="+ src +"->"+field+ ";");
1854 //output.println("if ("+dst+"&0x1) {");
1855 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1856 //output.println(src+"->"+field+"="+src+"->"+field+";");
1857 //output.println("}");
1860 output.println(dst+"="+ src+"->"+field+";");
1862 } else if (status==LocalityAnalysis.LOCAL) {
1863 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1864 } else if (status==LocalityAnalysis.EITHER) {
1865 //Code is reading from a null pointer
1866 output.println("if ("+generateTemp(fm, ffn.getSrc(),lb)+") {");
1867 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
1868 //This should throw a suitable null pointer error
1869 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1871 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
1873 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1877 private void generateFlatSetFieldNode(FlatMethod fm, LocalityBinding lb, FlatSetFieldNode fsfn, PrintWriter output) {
1878 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
1879 throw new Error("Can't set array length");
1880 if (state.DSM && locality.getAtomic(lb).get(fsfn).intValue()>0) {
1881 Integer statussrc=locality.getNodePreTempInfo(lb,fsfn).get(fsfn.getSrc());
1882 Integer statusdst=locality.getNodeTempInfo(lb).get(fsfn).get(fsfn.getDst());
1883 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
1885 String src=generateTemp(fm,fsfn.getSrc(),lb);
1886 String dst=generateTemp(fm,fsfn.getDst(),lb);
1888 output.println("{");
1889 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
1891 if (statusdst.equals(LocalityAnalysis.GLOBAL)) {
1894 output.println("*((unsigned int *)&("+dst+"->___localcopy___))|=DIRTY;");
1896 output.println("*((unsigned int *)&("+glbdst+"->"+ fsfn.getField().getSafeSymbol()+"))=srcoid;");
1898 output.println(glbdst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1899 } else if (statusdst.equals(LocalityAnalysis.LOCAL)) {
1900 /** Check if we need to copy */
1901 output.println("if(!"+dst+"->"+localcopystr+") {");
1902 /* Link object into list */
1903 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1904 output.println(revertptr+"=trans->revertlist;");
1905 if (GENERATEPRECISEGC)
1906 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
1908 output.println("COPY_OBJ("+dst+");");
1909 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
1910 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
1911 output.println("}");
1913 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
1915 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1916 } else if (statusdst.equals(LocalityAnalysis.EITHER)) {
1917 //writing to a null...bad
1918 output.println("if ("+dst+") {");
1919 output.println("printf(\"BIG ERROR 2\\n\");exit(-1);}");
1921 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
1923 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1926 output.println("}");
1929 output.println(generateTemp(fm, fsfn.getDst(),lb)+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc(),lb)+";");
1933 private void generateFlatElementNode(FlatMethod fm, LocalityBinding lb, FlatElementNode fen, PrintWriter output) {
1934 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
1937 if (elementtype.isArray()||elementtype.isClass())
1940 type=elementtype.getSafeSymbol()+" ";
1942 if (fen.needsBoundsCheck()) {
1943 output.println("if ("+generateTemp(fm, fen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fen.getIndex(),lb)+" >= "+generateTemp(fm,fen.getSrc(),lb) + "->___length___)");
1944 output.println("failedboundschk();");
1947 Integer status=locality.getNodePreTempInfo(lb,fen).get(fen.getSrc());
1948 if (status==LocalityAnalysis.GLOBAL) {
1949 String dst=generateTemp(fm, fen.getDst(),lb);
1951 if (elementtype.isPtr()) {
1952 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
1953 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1955 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
1957 } else if (status==LocalityAnalysis.LOCAL) {
1958 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
1959 } else if (status==LocalityAnalysis.EITHER) {
1960 //Code is reading from a null pointer
1961 output.println("if ("+generateTemp(fm, fen.getSrc(),lb)+") {");
1962 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
1963 //This should throw a suitable null pointer error
1964 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
1966 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
1968 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
1972 private void generateFlatSetElementNode(FlatMethod fm, LocalityBinding lb, FlatSetElementNode fsen, PrintWriter output) {
1973 //TODO: need dynamic check to make sure this assignment is actually legal
1974 //Because Object[] could actually be something more specific...ie. Integer[]
1976 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
1979 if (elementtype.isArray()||elementtype.isClass())
1982 type=elementtype.getSafeSymbol()+" ";
1985 if (fsen.needsBoundsCheck()) {
1986 output.println("if ("+generateTemp(fm, fsen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fsen.getIndex(),lb)+" >= "+generateTemp(fm,fsen.getDst(),lb) + "->___length___)");
1987 output.println("failedboundschk();");
1990 if (state.DSM && locality.getAtomic(lb).get(fsen).intValue()>0) {
1991 Integer statussrc=locality.getNodePreTempInfo(lb,fsen).get(fsen.getSrc());
1992 Integer statusdst=locality.getNodePreTempInfo(lb,fsen).get(fsen.getDst());
1993 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
1994 boolean dstglobal=statusdst==LocalityAnalysis.GLOBAL;
1995 boolean dstlocal=statusdst==LocalityAnalysis.LOCAL;
1998 output.println("*((unsigned int *)&("+generateTemp(fm,fsen.getDst(),lb)+"->___localcopy___))|=DIRTY;");
1999 } else if (dstlocal) {
2000 /** Check if we need to copy */
2001 String dst=generateTemp(fm, fsen.getDst(),lb);
2002 output.println("if(!"+dst+"->"+localcopystr+") {");
2003 /* Link object into list */
2004 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2005 output.println(revertptr+"=trans->revertlist;");
2006 if (GENERATEPRECISEGC)
2007 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
2009 output.println("COPY_OBJ("+dst+");");
2010 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
2011 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
2012 output.println("}");
2013 } else throw new Error("Unknown array type");
2015 output.println("{");
2016 String src=generateTemp(fm, fsen.getSrc(), lb);
2017 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
2018 output.println("((int*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]=srcoid;");
2019 output.println("}");
2021 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2024 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2027 private void generateFlatNew(FlatMethod fm, LocalityBinding lb, FlatNew fn, PrintWriter output) {
2028 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2029 //Stash pointer in case of GC
2030 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2031 output.println(revertptr+"=trans->revertlist;");
2033 if (fn.getType().isArray()) {
2034 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2035 if (fn.isGlobal()) {
2036 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarrayglobal(trans, "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2037 } else if (GENERATEPRECISEGC) {
2038 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray(&"+localsprefix+", "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2040 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2043 if (fn.isGlobal()) {
2044 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newglobal(trans, "+fn.getType().getClassDesc().getId()+");");
2045 } else if (GENERATEPRECISEGC) {
2046 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new(&"+localsprefix+", "+fn.getType().getClassDesc().getId()+");");
2048 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2051 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2052 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2053 output.println("trans->revertlist="+revertptr+";");
2057 private void generateFlatTagDeclaration(FlatMethod fm, LocalityBinding lb, FlatTagDeclaration fn, PrintWriter output) {
2058 if (GENERATEPRECISEGC) {
2059 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag(&"+localsprefix+", "+state.getTagId(fn.getType())+");");
2061 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag("+state.getTagId(fn.getType())+");");
2065 private void generateFlatOpNode(FlatMethod fm, LocalityBinding lb, FlatOpNode fon, PrintWriter output) {
2066 if (fon.getRight()!=null) {
2067 if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2068 if (fon.getLeft().getType().isLong())
2069 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2071 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned int)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2074 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+fon.getOp().toString()+generateTemp(fm,fon.getRight(),lb)+";");
2075 } else if (fon.getOp().getOp()==Operation.ASSIGN)
2076 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2077 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2078 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2079 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2080 output.println(generateTemp(fm, fon.getDest(),lb)+" = -"+generateTemp(fm, fon.getLeft(),lb)+";");
2081 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2082 output.println(generateTemp(fm, fon.getDest(),lb)+" = !"+generateTemp(fm, fon.getLeft(),lb)+";");
2083 else if (fon.getOp().getOp()==Operation.COMP)
2084 output.println(generateTemp(fm, fon.getDest(),lb)+" = ~"+generateTemp(fm, fon.getLeft(),lb)+";");
2085 else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2086 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+"->fses==NULL;");
2088 output.println(generateTemp(fm, fon.getDest(),lb)+fon.getOp().toString()+generateTemp(fm, fon.getLeft(),lb)+";");
2091 private void generateFlatCastNode(FlatMethod fm, LocalityBinding lb, FlatCastNode fcn, PrintWriter output) {
2092 /* TODO: Do type check here */
2093 if (fcn.getType().isArray()) {
2095 } else if (fcn.getType().isClass())
2096 output.println(generateTemp(fm,fcn.getDst(),lb)+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc(),lb)+";");
2098 output.println(generateTemp(fm,fcn.getDst(),lb)+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc(),lb)+";");
2101 private void generateFlatLiteralNode(FlatMethod fm, LocalityBinding lb, FlatLiteralNode fln, PrintWriter output) {
2102 if (fln.getValue()==null)
2103 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2104 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2105 if (GENERATEPRECISEGC) {
2106 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2107 //Stash pointer in case of GC
2108 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2109 output.println(revertptr+"=trans->revertlist;");
2111 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(&"+localsprefix+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2112 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2113 //Stash pointer in case of GC
2114 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2115 output.println("trans->revertlist="+revertptr+";");
2118 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2120 } else if (fln.getType().isBoolean()) {
2121 if (((Boolean)fln.getValue()).booleanValue())
2122 output.println(generateTemp(fm, fln.getDst(),lb)+"=1;");
2124 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2125 } else if (fln.getType().isChar()) {
2126 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2127 output.println(generateTemp(fm, fln.getDst(),lb)+"='"+st+"';");
2128 } else if (fln.getType().isLong()) {
2129 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+"LL;");
2131 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+";");
2134 private void generateFlatReturnNode(FlatMethod fm, LocalityBinding lb, FlatReturnNode frn, PrintWriter output) {
2135 if (frn.getReturnTemp()!=null) {
2136 if (frn.getReturnTemp().getType().isPtr())
2137 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2139 output.println("return "+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2141 output.println("return;");
2144 private void generateFlatCondBranch(FlatMethod fm, LocalityBinding lb, FlatCondBranch fcb, String label, PrintWriter output) {
2145 output.println("if (!"+generateTemp(fm, fcb.getTest(),lb)+") goto "+label+";");
2148 /** This method generates header information for the method or
2149 * task referenced by the Descriptor des. */
2151 private void generateHeader(FlatMethod fm, LocalityBinding lb, Descriptor des, PrintWriter output) {
2153 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:des);
2154 MethodDescriptor md=null;
2155 TaskDescriptor task=null;
2156 if (des instanceof MethodDescriptor)
2157 md=(MethodDescriptor) des;
2159 task=(TaskDescriptor) des;
2161 ClassDescriptor cn=md!=null?md.getClassDesc():null;
2163 if (md!=null&&md.getReturnType()!=null) {
2164 if (md.getReturnType().isClass()||md.getReturnType().isArray())
2165 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2167 output.print(md.getReturnType().getSafeSymbol()+" ");
2169 //catch the constructor case
2170 output.print("void ");
2173 output.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2175 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2177 output.print(task.getSafeSymbol()+"(");
2179 boolean printcomma=false;
2180 if (GENERATEPRECISEGC) {
2183 output.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2185 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2187 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2191 if (state.DSM&&lb.isAtomic()) {
2194 output.print("transrecord_t * trans");
2200 for(int i=0;i<objectparams.numPrimitives();i++) {
2201 TempDescriptor temp=objectparams.getPrimitive(i);
2205 if (temp.getType().isClass()||temp.getType().isArray())
2206 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2208 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2210 output.println(") {");
2211 } else if (!GENERATEPRECISEGC) {
2212 /* Imprecise Task */
2213 output.println("void * parameterarray[]) {");
2214 /* Unpack variables */
2215 for(int i=0;i<objectparams.numPrimitives();i++) {
2216 TempDescriptor temp=objectparams.getPrimitive(i);
2217 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2219 for(int i=0;i<fm.numTags();i++) {
2220 TempDescriptor temp=fm.getTag(i);
2221 int offset=i+objectparams.numPrimitives();
2222 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2225 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2226 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2227 } else output.println(") {");
2230 public void generateFlatFlagActionNode(FlatMethod fm, LocalityBinding lb, FlatFlagActionNode ffan, PrintWriter output) {
2231 output.println("/* FlatFlagActionNode */");
2234 /* Process tag changes */
2235 Relation tagsettable=new Relation();
2236 Relation tagcleartable=new Relation();
2238 Iterator tagsit=ffan.getTempTagPairs();
2239 while (tagsit.hasNext()) {
2240 TempTagPair ttp=(TempTagPair) tagsit.next();
2241 TempDescriptor objtmp=ttp.getTemp();
2242 TagDescriptor tag=ttp.getTag();
2243 TempDescriptor tagtmp=ttp.getTagTemp();
2244 boolean tagstatus=ffan.getTagChange(ttp);
2246 tagsettable.put(objtmp, tagtmp);
2248 tagcleartable.put(objtmp, tagtmp);
2253 Hashtable flagandtable=new Hashtable();
2254 Hashtable flagortable=new Hashtable();
2256 /* Process flag changes */
2257 Iterator flagsit=ffan.getTempFlagPairs();
2258 while(flagsit.hasNext()) {
2259 TempFlagPair tfp=(TempFlagPair)flagsit.next();
2260 TempDescriptor temp=tfp.getTemp();
2261 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2262 FlagDescriptor flag=tfp.getFlag();
2264 //Newly allocate objects that don't set any flags case
2265 if (flagortable.containsKey(temp)) {
2269 flagortable.put(temp,new Integer(mask));
2271 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2272 boolean flagstatus=ffan.getFlagChange(tfp);
2275 if (flagortable.containsKey(temp)) {
2276 mask=((Integer)flagortable.get(temp)).intValue();
2279 flagortable.put(temp,new Integer(mask));
2281 int mask=0xFFFFFFFF;
2282 if (flagandtable.containsKey(temp)) {
2283 mask=((Integer)flagandtable.get(temp)).intValue();
2285 mask&=(0xFFFFFFFF^flagid);
2286 flagandtable.put(temp,new Integer(mask));
2292 HashSet flagtagset=new HashSet();
2293 flagtagset.addAll(flagortable.keySet());
2294 flagtagset.addAll(flagandtable.keySet());
2295 flagtagset.addAll(tagsettable.keySet());
2296 flagtagset.addAll(tagcleartable.keySet());
2298 Iterator ftit=flagtagset.iterator();
2299 while(ftit.hasNext()) {
2300 TempDescriptor temp=(TempDescriptor)ftit.next();
2303 Set tagtmps=tagcleartable.get(temp);
2304 if (tagtmps!=null) {
2305 Iterator tagit=tagtmps.iterator();
2306 while(tagit.hasNext()) {
2307 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2308 if (GENERATEPRECISEGC)
2309 output.println("tagclear(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2311 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2315 tagtmps=tagsettable.get(temp);
2316 if (tagtmps!=null) {
2317 Iterator tagit=tagtmps.iterator();
2318 while(tagit.hasNext()) {
2319 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2320 if (GENERATEPRECISEGC)
2321 output.println("tagset(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2323 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp, lb)+", "+generateTemp(fm,tagtmp, lb)+");");
2328 int andmask=0xFFFFFFF;
2330 if (flagortable.containsKey(temp))
2331 ormask=((Integer)flagortable.get(temp)).intValue();
2332 if (flagandtable.containsKey(temp))
2333 andmask=((Integer)flagandtable.get(temp)).intValue();
2334 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2335 output.println("flagorandinit("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2337 output.println("flagorand("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2342 void generateOptionalHeader(PrintWriter headers) {
2345 headers.println("#include \"task.h\"\n\n");
2346 headers.println("#ifndef _OPTIONAL_STRUCT_");
2347 headers.println("#define _OPTIONAL_STRUCT_");
2349 //STRUCT PREDICATEMEMBER
2350 headers.println("struct predicatemember{");
2351 headers.println("int type;");
2352 headers.println("int numdnfterms;");
2353 headers.println("int * flags;");
2354 headers.println("int numtags;");
2355 headers.println("int * tags;\n};\n\n");
2357 //STRUCT OPTIONALTASKDESCRIPTOR
2358 headers.println("struct optionaltaskdescriptor{");
2359 headers.println("struct taskdescriptor * task;");
2360 headers.println("int index;");
2361 headers.println("int numenterflags;");
2362 headers.println("int * enterflags;");
2363 headers.println("int numpredicatemembers;");
2364 headers.println("struct predicatemember ** predicatememberarray;");
2365 headers.println("};\n\n");
2367 //STRUCT TASKFAILURE
2368 headers.println("struct taskfailure {");
2369 headers.println("struct taskdescriptor * task;");
2370 headers.println("int index;");
2371 headers.println("int numoptionaltaskdescriptors;");
2372 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2374 //STRUCT FSANALYSISWRAPPER
2375 headers.println("struct fsanalysiswrapper{");
2376 headers.println("int flags;");
2377 headers.println("int numtags;");
2378 headers.println("int * tags;");
2379 headers.println("int numtaskfailures;");
2380 headers.println("struct taskfailure ** taskfailurearray;");
2381 headers.println("int numoptionaltaskdescriptors;");
2382 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2384 //STRUCT CLASSANALYSISWRAPPER
2385 headers.println("struct classanalysiswrapper{");
2386 headers.println("int type;");
2387 headers.println("int numotd;");
2388 headers.println("struct optionaltaskdescriptor ** otdarray;");
2389 headers.println("int numfsanalysiswrappers;");
2390 headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
2392 headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
2394 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
2395 while(taskit.hasNext()) {
2396 TaskDescriptor td=(TaskDescriptor)taskit.next();
2397 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
2402 //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
2403 int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
2404 int predicateindex = 0;
2405 //iterate through the classes concerned by the predicate
2406 Set c_vard = predicate.vardescriptors;
2407 Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
2410 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext();){
2411 VarDescriptor vard = (VarDescriptor)vard_it.next();
2412 TypeDescriptor typed = vard.getType();
2414 //generate for flags
2415 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
2416 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2418 if (fen_hashset!=null){
2419 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext();){
2420 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
2422 DNFFlag dflag=fen.getDNF();
2423 numberterms+=dflag.size();
2425 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
2427 for(int j=0;j<dflag.size();j++) {
2429 output.println(",");
2430 Vector term=dflag.get(j);
2433 for(int k=0;k<term.size();k++) {
2434 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
2435 FlagDescriptor fd=dfa.getFlag();
2436 boolean negated=dfa.getNegated();
2437 int flagid=1<<((Integer)flags.get(fd)).intValue();
2442 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
2447 output.println("};\n");
2450 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
2451 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2454 for(int j=0;j<tagel.numTags();j++) {
2456 output.println(",");
2457 TempDescriptor tmp=tagel.getTemp(j);
2458 if (!slotnumber.containsKey(tmp)) {
2459 Integer slotint=new Integer(current_slot++);
2460 slotnumber.put(tmp,slotint);
2462 int slot=slotnumber.get(tmp).intValue();
2463 output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
2465 numtags = tagel.numTags();
2467 output.println("};");
2469 //store the result into a predicatemember struct
2470 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2471 output.println("/*type*/"+typed.getClassDesc().getId()+",");
2472 output.println("/* number of dnf terms */"+numberterms+",");
2473 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2474 output.println("/* number of tag */"+numtags+",");
2475 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2476 output.println("};\n");
2481 //generate an array that stores the entire predicate
2482 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2483 for( int j = 0; j<predicateindex; j++){
2484 if( j != predicateindex-1)output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2485 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2487 output.println("};\n");
2488 return predicateindex;
2492 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
2493 generateOptionalHeader(headers);
2495 output.println("#include \"optionalstruct.h\"\n\n");
2496 output.println("#include \"stdlib.h\"\n");
2498 HashSet processedcd = new HashSet();
2500 Enumeration e = safeexecution.keys();
2501 while (e.hasMoreElements()) {
2504 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
2505 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp);//will be used several times
2507 //Generate the struct of optionals
2508 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2509 numotd = c_otd.size();
2510 if(maxotd<numotd) maxotd = numotd;
2511 if( !c_otd.isEmpty() ){
2512 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2513 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2515 //generate the int arrays for the predicate
2516 Predicate predicate = otd.predicate;
2517 int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
2518 TreeSet<Integer> fsset=new TreeSet<Integer>();
2519 //iterate through possible FSes corresponding to
2520 //the state when entering
2522 for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext();){
2523 FlagState fs = (FlagState)fses.next();
2525 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2526 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2527 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2530 fsset.add(new Integer(flagid));
2531 //tag information not needed because tag
2532 //changes are not tolerated.
2535 output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2536 boolean needcomma=false;
2537 for(Iterator<Integer> it=fsset.iterator();it.hasNext();) {
2540 output.println(it.next());
2543 output.println("};\n");
2546 //generate optionaltaskdescriptor that actually
2547 //includes exit fses, predicate and the task
2549 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2550 output.println("&task_"+otd.td.getSafeSymbol()+",");
2551 output.println("/*index*/"+otd.getIndex()+",");
2552 output.println("/*number of enter flags*/"+fsset.size()+",");
2553 output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2554 output.println("/*number of members */"+predicateindex+",");
2555 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2556 output.println("};\n");
2560 // if there are no optionals, there is no need to build the rest of the struct
2562 output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
2563 c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2564 if( !c_otd.isEmpty() ){
2565 boolean needcomma=false;
2566 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2567 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2569 output.println(",");
2571 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2574 output.println("};\n");
2576 //get all the possible flagstates reachable by an object
2577 Hashtable hashtbtemp = safeexecution.get(cdtemp);
2579 TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
2580 fsts.addAll(hashtbtemp.keySet());
2581 for(Iterator fsit=fsts.iterator();fsit.hasNext();) {
2582 FlagState fs = (FlagState)fsit.next();
2585 //get the set of OptionalTaskDescriptors corresponding
2586 HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
2587 //iterate through the OptionalTaskDescriptors and
2588 //store the pointers to the optionals struct (see on
2589 //top) into an array
2591 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
2592 for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext();){
2593 OptionalTaskDescriptor mm = mos.next();
2595 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
2597 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2600 output.println("};\n");
2602 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
2605 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2606 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2607 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2611 //process tag information
2614 boolean first = true;
2615 Enumeration tag_enum = fs.getTags();
2616 output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2617 while(tag_enum.hasMoreElements()){
2619 TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
2623 output.println(", ");
2624 output.println("/*tagid*/"+state.getTagId(tagd));
2626 output.println("};");
2628 Set<TaskIndex> tiset=sa.getTaskIndex(fs);
2629 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2630 TaskIndex ti=itti.next();
2634 Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
2636 output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
2637 boolean needcomma=false;
2638 for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator();otdit.hasNext();) {
2639 OptionalTaskDescriptor otd=otdit.next();
2643 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2645 output.println("};");
2647 output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
2648 output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
2649 output.print(ti.getIndex()+", ");
2650 output.print(otdset.size()+", ");
2651 output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
2652 output.println("};");
2655 tiset=sa.getTaskIndex(fs);
2656 boolean needcomma=false;
2658 output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2659 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2660 TaskIndex ti=itti.next();
2661 if (ti.isRuntime()) {
2668 output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
2670 output.println("};\n");
2672 //Store the result in fsanalysiswrapper
2674 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
2675 output.println("/*flag*/"+flagid+",");
2676 output.println("/* number of tags*/"+tagcounter+",");
2677 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2678 output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
2679 output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2680 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
2681 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
2682 output.println("};\n");
2686 //Build the array of fsanalysiswrappers
2687 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
2688 boolean needcomma=false;
2689 for(int i = 0; i<fscounter; i++){
2690 if (needcomma) output.print(",");
2691 output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
2694 output.println("};");
2696 //Build the classanalysiswrapper referring to the previous array
2697 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
2698 output.println("/*type*/"+cdtemp.getId()+",");
2699 output.println("/*numotd*/"+numotd+",");
2700 output.println("otdarray"+cdtemp.getSafeSymbol()+",");
2701 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
2702 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
2703 processedcd.add(cdtemp);
2706 //build an array containing every classes for which code has been build
2707 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
2708 for(int i=0;i<state.numClasses();i++) {
2709 ClassDescriptor cn=cdarray[i];
2712 if (processedcd.contains(cn))
2713 output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
2715 output.print("NULL");
2717 output.println("};");
2719 output.println("#define MAXOTD "+maxotd);
2720 headers.println("#endif");
2723 public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
2724 Relation r=new Relation();
2725 for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator();otdit.hasNext();) {
2726 OptionalTaskDescriptor otd=otdit.next();
2727 TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
2731 LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
2732 for(Iterator it=r.keySet().iterator();it.hasNext();) {
2733 Set s=r.get(it.next());
2734 for(Iterator it2=s.iterator();it2.hasNext();) {
2735 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();