2 import IR.Tree.FlagExpressionNode;
3 import IR.Tree.DNFFlag;
4 import IR.Tree.DNFFlagAtom;
5 import IR.Tree.TagExpressionList;
11 import Analysis.TaskStateAnalysis.FlagState;
12 import Analysis.TaskStateAnalysis.FlagComparator;
13 import Analysis.TaskStateAnalysis.OptionalTaskDescriptor;
14 import Analysis.TaskStateAnalysis.Predicate;
15 import Analysis.TaskStateAnalysis.SafetyAnalysis;
16 import Analysis.TaskStateAnalysis.TaskIndex;
17 import Analysis.Locality.LocalityAnalysis;
18 import Analysis.Locality.LocalityBinding;
19 import Analysis.Prefetch.*;
21 public class BuildCode {
24 Hashtable paramstable;
29 String localsprefix="___locals___";
30 String paramsprefix="___params___";
31 String oidstr="___nextobject___";
32 String nextobjstr="___nextobject___";
33 String localcopystr="___localcopy___";
34 public static boolean GENERATEPRECISEGC=false;
35 public static String PREFIX="";
36 public static String arraytype="ArrayObject";
37 public static int flagcount = 0;
40 //private int maxtaskparams=0;
41 protected int maxtaskparams=0;
42 private int maxcount=0;
43 ClassDescriptor[] cdarray;
44 TypeDescriptor[] arraytable;
45 LocalityAnalysis locality;
46 Hashtable<TempDescriptor, TempDescriptor> backuptable;
47 Hashtable<LocalityBinding, TempDescriptor> reverttable;
50 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa) {
51 this(st, temptovar, typeutil, null, sa);
54 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality) {
55 this(st, temptovar, typeutil, locality, null);
58 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality, SafetyAnalysis sa) {
61 this.temptovar=temptovar;
62 paramstable=new Hashtable();
63 tempstable=new Hashtable();
64 fieldorder=new Hashtable();
65 flagorder=new Hashtable();
66 this.typeutil=typeutil;
67 virtualcalls=new Virtual(state,locality);
69 this.locality=locality;
70 this.backuptable=new Hashtable<TempDescriptor, TempDescriptor>();
71 this.reverttable=new Hashtable<LocalityBinding, TempDescriptor>();
75 /** The buildCode method outputs C code for all the methods. The Flat
76 * versions of the methods must already be generated and stored in
77 * the State object. */
79 public void buildCode() {
80 /* Create output streams to write to */
81 PrintWriter outclassdefs=null;
82 PrintWriter outstructs=null;
83 PrintWriter outrepairstructs=null;
84 PrintWriter outmethodheader=null;
85 PrintWriter outmethod=null;
86 PrintWriter outvirtual=null;
87 PrintWriter outtask=null;
88 PrintWriter outtaskdefs=null;
89 PrintWriter outoptionalarrays=null;
90 PrintWriter optionalheaders=null;
93 outstructs=new PrintWriter(new FileOutputStream(PREFIX+"structdefs.h"), true);
94 outmethodheader=new PrintWriter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
95 outclassdefs=new PrintWriter(new FileOutputStream(PREFIX+"classdefs.h"), true);
96 outmethod=new PrintWriter(new FileOutputStream(PREFIX+"methods.c"), true);
97 outvirtual=new PrintWriter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
99 outtask=new PrintWriter(new FileOutputStream(PREFIX+"task.h"), true);
100 outtaskdefs=new PrintWriter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
102 outoptionalarrays=new PrintWriter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
103 optionalheaders=new PrintWriter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
106 if (state.structfile!=null) {
107 outrepairstructs=new PrintWriter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
109 } catch (Exception e) {
114 /* Build the virtual dispatch tables */
115 buildVirtualTables(outvirtual);
117 /* Output includes */
118 outmethodheader.println("#ifndef METHODHEADERS_H");
119 outmethodheader.println("#define METHODHEADERS_H");
120 outmethodheader.println("#include \"structdefs.h\"");
122 outmethodheader.println("#include \"dstm.h\"");
124 /* Output Structures */
125 outputStructs(outstructs);
127 // Output the C class declarations
128 // These could mutually reference each other
129 outputClassDeclarations(outclassdefs);
131 // Output function prototypes and structures for parameters
132 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
133 while(it.hasNext()) {
134 ClassDescriptor cn=(ClassDescriptor)it.next();
135 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader);
137 outclassdefs.close();
140 /* Map flags to integers */
141 /* The runtime keeps track of flags using these integers */
142 it=state.getClassSymbolTable().getDescriptorsIterator();
143 while(it.hasNext()) {
144 ClassDescriptor cn=(ClassDescriptor)it.next();
148 generateTaskStructs(outstructs, outmethodheader);
150 /* Outputs generic task structures if this is a task
152 outputTaskTypes(outtask);
155 /* Build the actual methods */
156 outputMethods(outmethod);
159 /* Output code for tasks */
160 outputTaskCode(outtaskdefs, outmethod);
162 /* Record maximum number of task parameters */
163 outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
164 } else if (state.main!=null) {
165 /* Generate main method */
166 outputMainMethod(outmethod);
169 /* Generate information for task with optional parameters */
170 if (state.TASK&&state.OPTIONAL){
171 generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
172 outoptionalarrays.close();
175 /* Output structure definitions for repair tool */
176 if (state.structfile!=null) {
177 buildRepairStructs(outrepairstructs);
178 outrepairstructs.close();
182 outmethodheader.println("#endif");
183 outmethodheader.close();
185 outstructs.println("#endif");
189 /* This code just generates the main C method for java programs.
190 * The main C method packs up the arguments into a string array
191 * and passes it to the java main method. */
193 private void outputMainMethod(PrintWriter outmethod) {
194 outmethod.println("int main(int argc, const char *argv[]) {");
195 outmethod.println(" int i;");
196 if (state.THREAD||state.DSM) {
197 outmethod.println("initializethreads();");
200 outmethod.println("if (dstmStartup(argv[1])) {");
201 if (GENERATEPRECISEGC) {
202 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-2);");
204 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-2);");
207 if (GENERATEPRECISEGC) {
208 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
210 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
214 outmethod.println(" for(i=2;i<argc;i++) {");
216 outmethod.println(" for(i=1;i<argc;i++) {");
217 outmethod.println(" int length=strlen(argv[i]);");
218 if (GENERATEPRECISEGC) {
219 outmethod.println(" struct ___String___ *newstring=NewString(NULL, argv[i], length);");
221 outmethod.println(" struct ___String___ *newstring=NewString(argv[i], length);");
224 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-2]=newstring;");
226 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
227 outmethod.println(" }");
230 MethodDescriptor md=typeutil.getMain();
231 ClassDescriptor cd=typeutil.getMainClass();
233 outmethod.println(" {");
234 if (GENERATEPRECISEGC) {
236 outmethod.print(" struct "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
238 outmethod.print(" struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
239 outmethod.println("1, NULL,"+"stringarray};");
241 outmethod.println(" "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
243 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
246 outmethod.println(" "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
248 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
250 outmethod.println(" }");
253 outmethod.println("}");
256 if (state.THREAD||state.DSM) {
257 outmethod.println("pthread_mutex_lock(&gclistlock);");
258 outmethod.println("threadcount--;");
259 outmethod.println("pthread_cond_signal(&gccond);");
260 outmethod.println("pthread_mutex_unlock(&gclistlock);");
262 outmethod.println("pthread_exit(NULL);");
266 outmethod.println("}");
269 /* This method outputs code for each task. */
271 private void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
272 /* Compile task based program */
273 outtaskdefs.println("#include \"task.h\"");
274 outtaskdefs.println("#include \"methodheaders.h\"");
275 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
276 while(taskit.hasNext()) {
277 TaskDescriptor td=(TaskDescriptor)taskit.next();
278 FlatMethod fm=state.getMethodFlat(td);
279 generateFlatMethod(fm, null, outmethod);
280 generateTaskDescriptor(outtaskdefs, fm, td);
283 //Output task descriptors
284 taskit=state.getTaskSymbolTable().getDescriptorsIterator();
285 outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
287 while(taskit.hasNext()) {
288 TaskDescriptor td=(TaskDescriptor)taskit.next();
292 outtaskdefs.println(",");
293 outtaskdefs.print("&task_"+td.getSafeSymbol());
295 outtaskdefs.println("};");
297 outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
300 /* This method outputs most of the methods.c file. This includes
301 * some standard includes and then an array with the sizes of
302 * objets and array that stores supertype and then the code for
303 * the Java methods.. */
305 //private void outputMethods(PrintWriter outmethod) {
306 protected void outputMethods(PrintWriter outmethod) {
307 outmethod.println("#include \"methodheaders.h\"");
308 outmethod.println("#include \"virtualtable.h\"");
309 outmethod.println("#include <runtime.h>");
311 outmethod.println("#include \"localobjects.h\"");
313 if(state.MULTICORE) {
314 outmethod.println("#include \"task.h\"");
316 if (state.THREAD||state.DSM)
317 outmethod.println("#include <thread.h>");
318 if (state.main!=null) {
319 outmethod.println("#include <string.h>");
321 if (state.CONSCHECK) {
322 outmethod.println("#include \"checkers.h\"");
324 //Store the sizes of classes & array elements
325 generateSizeArray(outmethod);
327 //Store table of supertypes
328 generateSuperTypeTable(outmethod);
330 //Store the layout of classes
331 generateLayoutStructs(outmethod);
333 /* Generate code for methods */
335 for(Iterator<LocalityBinding> lbit=locality.getLocalityBindings().iterator();lbit.hasNext();) {
336 LocalityBinding lb=lbit.next();
337 MethodDescriptor md=lb.getMethod();
338 FlatMethod fm=state.getMethodFlat(md);
339 if (!md.getModifiers().isNative()) {
340 generateFlatMethod(fm, lb, outmethod);
344 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
345 while(classit.hasNext()) {
346 ClassDescriptor cn=(ClassDescriptor)classit.next();
347 Iterator methodit=cn.getMethods();
348 while(methodit.hasNext()) {
349 /* Classify parameters */
350 MethodDescriptor md=(MethodDescriptor)methodit.next();
351 FlatMethod fm=state.getMethodFlat(md);
352 if (!md.getModifiers().isNative()) {
353 generateFlatMethod(fm, null, outmethod);
360 //private void outputStructs(PrintWriter outstructs) {
361 protected void outputStructs(PrintWriter outstructs) {
362 outstructs.println("#ifndef STRUCTDEFS_H");
363 outstructs.println("#define STRUCTDEFS_H");
364 outstructs.println("#include \"classdefs.h\"");
366 /* Output #defines that the runtime uses to determine type
367 * numbers for various objects it needs */
368 outstructs.println("#define MAXCOUNT "+maxcount);
370 LocalityBinding lb=new LocalityBinding(typeutil.getRun(), false);
371 lb.setGlobalThis(LocalityAnalysis.GLOBAL);
372 outstructs.println("#define RUNMETHOD "+virtualcalls.getLocalityNumber(lb));
375 outstructs.println("#define STRINGARRAYTYPE "+
376 (state.getArrayNumber(
377 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
379 outstructs.println("#define OBJECTARRAYTYPE "+
380 (state.getArrayNumber(
381 (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
384 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
385 outstructs.println("#define CHARARRAYTYPE "+
386 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
388 outstructs.println("#define BYTEARRAYTYPE "+
389 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
391 outstructs.println("#define BYTEARRAYARRAYTYPE "+
392 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
394 outstructs.println("#define NUMCLASSES "+state.numClasses());
396 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
397 outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
398 outstructs.println("#define TAGARRAYTYPE "+
399 (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
403 //private void outputClassDeclarations(PrintWriter outclassdefs) {
404 protected void outputClassDeclarations(PrintWriter outclassdefs) {
405 if (state.THREAD||state.DSM)
406 outclassdefs.println("#include <pthread.h>");
408 outclassdefs.println("#include \"optionalstruct.h\"");
409 outclassdefs.println("struct "+arraytype+";");
410 /* Start by declaring all structs */
411 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
412 while(it.hasNext()) {
413 ClassDescriptor cn=(ClassDescriptor)it.next();
414 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
416 outclassdefs.println("");
417 //Print out definition for array type
418 outclassdefs.println("struct "+arraytype+" {");
419 outclassdefs.println(" int type;");
421 outclassdefs.println(" pthread_t tid;");
422 outclassdefs.println(" void * lockentry;");
423 outclassdefs.println(" int lockcount;");
426 outclassdefs.println(" int flag;");
427 if(!state.MULTICORE) {
428 outclassdefs.println(" void * flagptr;");
430 outclassdefs.println(" int isolate;"); // indicate if this object is shared or not
431 outclassdefs.println(" int version;");
432 outclassdefs.println(" struct ___Object___ * original;");
435 outclassdefs.println(" int numfses;");
436 outclassdefs.println(" int * fses;");
439 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs);
441 outclassdefs.println(" int ___length___;");
442 outclassdefs.println("};\n");
443 outclassdefs.println("extern int classsize[];");
444 outclassdefs.println("extern int hasflags[];");
445 outclassdefs.println("extern unsigned int * pointerarray[];");
446 outclassdefs.println("extern int supertypes[];");
449 /** Prints out definitions for generic task structures */
451 private void outputTaskTypes(PrintWriter outtask) {
452 outtask.println("#ifndef _TASK_H");
453 outtask.println("#define _TASK_H");
454 outtask.println("struct parameterdescriptor {");
455 outtask.println("int type;");
456 outtask.println("int numberterms;");
457 outtask.println("int *intarray;");
458 outtask.println("void * queue;");
459 outtask.println("int numbertags;");
460 outtask.println("int *tagarray;");
461 outtask.println("};");
463 outtask.println("struct taskdescriptor {");
464 outtask.println("void * taskptr;");
465 outtask.println("int numParameters;");
466 outtask.println("int numTotal;");
467 outtask.println("struct parameterdescriptor **descriptorarray;");
468 outtask.println("char * name;");
469 outtask.println("};");
470 outtask.println("extern struct taskdescriptor * taskarray[];");
471 outtask.println("extern numtasks;");
472 outtask.println("#endif");
476 private void buildRepairStructs(PrintWriter outrepairstructs) {
477 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
478 while(classit.hasNext()) {
479 ClassDescriptor cn=(ClassDescriptor)classit.next();
480 outrepairstructs.println("structure "+cn.getSymbol()+" {");
481 outrepairstructs.println(" int __type__;");
483 outrepairstructs.println(" int __flag__;");
484 if(!state.MULTICORE) {
485 outrepairstructs.println(" int __flagptr__;");
488 printRepairStruct(cn, outrepairstructs);
489 outrepairstructs.println("}\n");
492 for(int i=0;i<state.numArrays();i++) {
493 TypeDescriptor tdarray=arraytable[i];
494 TypeDescriptor tdelement=tdarray.dereference();
495 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
496 outrepairstructs.println(" int __type__;");
497 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
498 outrepairstructs.println(" int length;");
500 // Need to add support to repair tool for this
501 if (tdelement.isClass()||tdelement.isArray())
502 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" * elem[this.length];");
504 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" elem[this.length];");
506 outrepairstructs.println("}\n");
510 private void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
511 ClassDescriptor sp=cn.getSuperDesc();
513 printRepairStruct(sp, output);
515 Vector fields=(Vector)fieldorder.get(cn);
517 for(int i=0;i<fields.size();i++) {
518 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
519 if (fd.getType().isArray()) {
520 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
521 } else if (fd.getType().isClass())
522 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
523 else if (fd.getType().isFloat())
524 output.println(" int "+fd.getSymbol()+"; /* really float */");
526 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
530 /** This method outputs TaskDescriptor information */
531 private void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
532 for (int i=0;i<task.numParameters();i++) {
533 VarDescriptor param_var=task.getParameter(i);
534 TypeDescriptor param_type=task.getParamType(i);
535 FlagExpressionNode param_flag=task.getFlag(param_var);
536 TagExpressionList param_tag=task.getTag(param_var);
539 if (param_flag==null) {
540 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
541 output.println("0x0, 0x0 };");
544 DNFFlag dflag=param_flag.getDNF();
545 dnfterms=dflag.size();
547 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
548 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
549 for(int j=0;j<dflag.size();j++) {
552 Vector term=dflag.get(j);
555 for(int k=0;k<term.size();k++) {
556 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
557 FlagDescriptor fd=dfa.getFlag();
558 boolean negated=dfa.getNegated();
559 int flagid=1<<((Integer)flags.get(fd)).intValue();
564 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
566 output.println("};");
569 output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
570 //BUG...added next line to fix, test with any task program
572 for(int j=0;j<param_tag.numTags();j++) {
575 /* for each tag we need */
576 /* which slot it is */
577 /* what type it is */
578 TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
579 TempDescriptor tmp=param_tag.getTemp(j);
580 int slot=fm.getTagInt(tmp);
581 output.println(slot+", "+state.getTagId(tvd.getTag()));
583 output.println("};");
585 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
586 output.println("/* type */"+param_type.getClassDesc().getId()+",");
587 output.println("/* number of DNF terms */"+dnfterms+",");
588 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
589 output.println("0,");
590 //BUG, added next line to fix and else statement...test
591 //with any task program
593 output.println("/* number of tags */"+param_tag.numTags()+",");
595 output.println("/* number of tags */ 0,");
596 output.println("parametertag_"+i+"_"+task.getSafeSymbol());
597 output.println("};");
601 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
602 for (int i=0;i<task.numParameters();i++) {
605 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
607 output.println("};");
609 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
610 output.println("&"+task.getSafeSymbol()+",");
611 output.println("/* number of parameters */" +task.numParameters() + ",");
612 int numtotal=task.numParameters()+fm.numTags();
613 output.println("/* number total parameters */" +numtotal + ",");
614 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
615 output.println("\""+task.getSymbol()+"\"");
616 output.println("};");
620 /** The buildVirtualTables method outputs the virtual dispatch
621 * tables for methods. */
623 //private void buildVirtualTables(PrintWriter outvirtual) {
624 protected void buildVirtualTables(PrintWriter outvirtual) {
625 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
626 while(classit.hasNext()) {
627 ClassDescriptor cd=(ClassDescriptor)classit.next();
628 if (virtualcalls.getMethodCount(cd)>maxcount)
629 maxcount=virtualcalls.getMethodCount(cd);
631 MethodDescriptor[][] virtualtable=null;
632 LocalityBinding[][] lbvirtualtable=null;
634 lbvirtualtable=new LocalityBinding[state.numClasses()+state.numArrays()][maxcount];
636 virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
638 /* Fill in virtual table */
639 classit=state.getClassSymbolTable().getDescriptorsIterator();
640 while(classit.hasNext()) {
641 ClassDescriptor cd=(ClassDescriptor)classit.next();
643 fillinRow(cd, lbvirtualtable, cd.getId());
645 fillinRow(cd, virtualtable, cd.getId());
648 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
649 Iterator arrayit=state.getArrayIterator();
650 while(arrayit.hasNext()) {
651 TypeDescriptor td=(TypeDescriptor)arrayit.next();
652 int id=state.getArrayNumber(td);
654 fillinRow(objectcd, lbvirtualtable, id+state.numClasses());
656 fillinRow(objectcd, virtualtable, id+state.numClasses());
659 outvirtual.print("void * virtualtable[]={");
660 boolean needcomma=false;
661 for(int i=0;i<state.numClasses()+state.numArrays();i++) {
662 for(int j=0;j<maxcount;j++) {
664 outvirtual.print(", ");
665 if (state.DSM&&lbvirtualtable[i][j]!=null) {
666 LocalityBinding lb=lbvirtualtable[i][j];
667 MethodDescriptor md=lb.getMethod();
668 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
669 } else if (!state.DSM&&virtualtable[i][j]!=null) {
670 MethodDescriptor md=virtualtable[i][j];
671 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
673 outvirtual.print("0");
677 outvirtual.println("");
679 outvirtual.println("};");
683 private void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
684 /* Get inherited methods */
685 if (cd.getSuperDesc()!=null)
686 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
687 /* Override them with our methods */
688 for(Iterator it=cd.getMethods();it.hasNext();) {
689 MethodDescriptor md=(MethodDescriptor)it.next();
690 if (md.isStatic()||md.getReturnType()==null)
692 int methodnum=virtualcalls.getMethodNumber(md);
693 virtualtable[rownum][methodnum]=md;
697 private void fillinRow(ClassDescriptor cd, LocalityBinding[][] virtualtable, int rownum) {
698 /* Get inherited methods */
699 if (cd.getSuperDesc()!=null)
700 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
701 /* Override them with our methods */
702 if (locality.getClassBindings(cd)!=null)
703 for(Iterator<LocalityBinding> lbit=locality.getClassBindings(cd).iterator();lbit.hasNext();) {
704 LocalityBinding lb=lbit.next();
705 MethodDescriptor md=lb.getMethod();
706 //Is the method static or a constructor
707 if (md.isStatic()||md.getReturnType()==null)
709 int methodnum=virtualcalls.getLocalityNumber(lb);
710 virtualtable[rownum][methodnum]=lb;
715 /** Generate array that contains the sizes of class objects. The
716 * object allocation functions in the runtime use this
719 private void generateSizeArray(PrintWriter outclassdefs) {
720 outclassdefs.print("int classsize[]={");
721 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
722 cdarray=new ClassDescriptor[state.numClasses()];
723 while(it.hasNext()) {
724 ClassDescriptor cd=(ClassDescriptor)it.next();
725 cdarray[cd.getId()]=cd;
727 boolean needcomma=false;
728 for(int i=0;i<state.numClasses();i++) {
730 outclassdefs.print(", ");
731 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
735 arraytable=new TypeDescriptor[state.numArrays()];
737 Iterator arrayit=state.getArrayIterator();
738 while(arrayit.hasNext()) {
739 TypeDescriptor td=(TypeDescriptor)arrayit.next();
740 int id=state.getArrayNumber(td);
744 for(int i=0;i<state.numArrays();i++) {
746 outclassdefs.print(", ");
747 TypeDescriptor tdelement=arraytable[i].dereference();
748 if (tdelement.isArray()||tdelement.isClass())
749 outclassdefs.print("sizeof(void *)");
751 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
755 outclassdefs.println("};");
758 /** Constructs params and temp objects for each method or task.
759 * These objects tell the compiler which temps need to be
762 //private void generateTempStructs(FlatMethod fm, LocalityBinding lb) {
763 protected void generateTempStructs(FlatMethod fm, LocalityBinding lb) {
764 MethodDescriptor md=fm.getMethod();
765 TaskDescriptor task=fm.getTask();
766 Set<TempDescriptor> saveset=lb!=null?locality.getTempSet(lb):null;
767 ParamsObject objectparams=md!=null?new ParamsObject(md,tag++):new ParamsObject(task, tag++);
770 paramstable.put(lb, objectparams);
772 paramstable.put(md, objectparams);
774 paramstable.put(task, objectparams);
776 for(int i=0;i<fm.numParameters();i++) {
777 TempDescriptor temp=fm.getParameter(i);
778 TypeDescriptor type=temp.getType();
779 if (type.isPtr()&&GENERATEPRECISEGC)
780 objectparams.addPtr(temp);
782 objectparams.addPrim(temp);
783 if(lb!=null&&saveset.contains(temp)) {
784 backuptable.put(temp, temp.createNew());
788 for(int i=0;i<fm.numTags();i++) {
789 TempDescriptor temp=fm.getTag(i);
790 if (GENERATEPRECISEGC)
791 objectparams.addPtr(temp);
793 objectparams.addPrim(temp);
796 TempObject objecttemps=md!=null?new TempObject(objectparams,md,tag++):new TempObject(objectparams, task, tag++);
798 tempstable.put(lb, objecttemps);
800 tempstable.put(md, objecttemps);
802 tempstable.put(task, objecttemps);
804 for(Iterator nodeit=fm.getNodeSet().iterator();nodeit.hasNext();) {
805 FlatNode fn=(FlatNode)nodeit.next();
806 TempDescriptor[] writes=fn.writesTemps();
807 for(int i=0;i<writes.length;i++) {
808 TempDescriptor temp=writes[i];
809 TypeDescriptor type=temp.getType();
810 if (type.isPtr()&&GENERATEPRECISEGC)
811 objecttemps.addPtr(temp);
813 objecttemps.addPrim(temp);
814 if(lb!=null&&saveset.contains(temp)&&
815 !backuptable.containsKey(temp))
816 backuptable.put(temp, temp.createNew());
820 /* Create backup temps */
822 for(Iterator<TempDescriptor> tmpit=backuptable.values().iterator();tmpit.hasNext();) {
823 TempDescriptor tmp=tmpit.next();
824 TypeDescriptor type=tmp.getType();
825 if (type.isPtr()&&GENERATEPRECISEGC)
826 objecttemps.addPtr(tmp);
828 objecttemps.addPrim(tmp);
830 /* Create temp to hold revert table */
831 if (lb.getHasAtomic()||lb.isAtomic()) {
832 TempDescriptor reverttmp=new TempDescriptor("revertlist", typeutil.getClass(TypeUtil.ObjectClass));
833 if (GENERATEPRECISEGC)
834 objecttemps.addPtr(reverttmp);
836 objecttemps.addPrim(reverttmp);
837 reverttable.put(lb, reverttmp);
842 /** This method outputs the following information about classes
844 * (1) For classes, what are the locations of pointers.
845 * (2) For arrays, does the array contain pointers or primitives.
846 * (3) For classes, does the class contain flags.
849 private void generateLayoutStructs(PrintWriter output) {
850 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
851 while(it.hasNext()) {
852 ClassDescriptor cn=(ClassDescriptor)it.next();
853 output.println("unsigned int "+cn.getSafeSymbol()+"_pointers[]={");
854 Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
856 while(allit.hasNext()) {
857 FieldDescriptor fd=(FieldDescriptor)allit.next();
858 TypeDescriptor type=fd.getType();
859 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
865 allit=cn.getFieldTable().getAllDescriptorsIterator();
866 while(allit.hasNext()) {
867 FieldDescriptor fd=(FieldDescriptor)allit.next();
868 TypeDescriptor type=fd.getType();
869 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
873 output.print("((unsigned int)&(((struct "+cn.getSafeSymbol() +" *)0)->"+fd.getSafeSymbol()+"))");
876 output.println("};");
878 output.println("unsigned int * pointerarray[]={");
879 boolean needcomma=false;
880 for(int i=0;i<state.numClasses();i++) {
881 ClassDescriptor cn=cdarray[i];
885 output.print(cn.getSafeSymbol()+"_pointers");
888 for(int i=0;i<state.numArrays();i++) {
890 output.println(", ");
891 TypeDescriptor tdelement=arraytable[i].dereference();
892 if (tdelement.isArray()||tdelement.isClass())
893 output.print("((unsigned int *)1)");
899 output.println("};");
901 output.println("int hasflags[]={");
902 for(int i=0;i<state.numClasses();i++) {
903 ClassDescriptor cn=cdarray[i];
905 output.println(", ");
912 output.println("};");
915 /** Print out table to give us supertypes */
916 private void generateSuperTypeTable(PrintWriter output) {
917 output.println("int supertypes[]={");
918 boolean needcomma=false;
919 for(int i=0;i<state.numClasses();i++) {
920 ClassDescriptor cn=cdarray[i];
924 if (cn.getSuperDesc()!=null) {
925 ClassDescriptor cdsuper=cn.getSuperDesc();
926 output.print(cdsuper.getId());
930 output.println("};");
933 /** Force consistent field ordering between inherited classes. */
935 private void printClassStruct(ClassDescriptor cn, PrintWriter classdefout) {
937 ClassDescriptor sp=cn.getSuperDesc();
939 printClassStruct(sp, classdefout);
941 if (!fieldorder.containsKey(cn)) {
942 Vector fields=new Vector();
943 fieldorder.put(cn,fields);
944 if (sp==null&&!state.TASK) {
945 fields.add(cn.getFieldTable().get("cachedCode"));
947 Iterator fieldit=cn.getFields();
948 while(fieldit.hasNext()) {
949 FieldDescriptor fd=(FieldDescriptor)fieldit.next();
950 if ((sp==null||!sp.getFieldTable().contains(fd.getSymbol()))&&
951 (!fd.getSymbol().equals("cachedCode")||state.TASK))
955 Vector fields=(Vector)fieldorder.get(cn);
957 for(int i=0;i<fields.size();i++) {
958 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
959 if (fd.getType().isClass()||fd.getType().isArray())
960 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
962 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
967 /* Map flags to integers consistently between inherited
970 //private void mapFlags(ClassDescriptor cn) {
971 protected void mapFlags(ClassDescriptor cn) {
972 ClassDescriptor sp=cn.getSuperDesc();
976 if (!flagorder.containsKey(cn)) {
977 Hashtable flags=new Hashtable();
978 flagorder.put(cn,flags);
980 Hashtable superflags=(Hashtable)flagorder.get(sp);
981 Iterator superflagit=superflags.keySet().iterator();
982 while(superflagit.hasNext()) {
983 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
984 Integer number=(Integer)superflags.get(fd);
985 flags.put(fd, number);
986 if ((number.intValue()+1)>max)
987 max=number.intValue()+1;
991 Iterator flagit=cn.getFlags();
992 while(flagit.hasNext()) {
993 FlagDescriptor fd=(FlagDescriptor)flagit.next();
994 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
995 flags.put(fd, new Integer(max++));
1001 /** This function outputs (1) structures that parameters are
1002 * passed in (when PRECISE GC is enabled) and (2) function
1003 * prototypes for the methods */
1005 //private void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
1006 protected void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
1007 /* Output class structure */
1008 classdefout.println("struct "+cn.getSafeSymbol()+" {");
1009 classdefout.println(" int type;");
1011 classdefout.println(" pthread_t tid;");
1012 classdefout.println(" void * lockentry;");
1013 classdefout.println(" int lockcount;");
1017 classdefout.println(" int flag;");
1018 if((!state.MULTICORE) || (cn.getSymbol().equals("TagDescriptor"))) {
1019 classdefout.println(" void * flagptr;");
1020 } else if (state.MULTICORE){
1021 classdefout.println(" int isolate;"); // indicate if this object is shared or not
1022 classdefout.println(" int version;");
1023 classdefout.println(" struct ___Object___ * original;");
1025 if (state.OPTIONAL){
1026 classdefout.println(" int numfses;");
1027 classdefout.println(" int * fses;");
1030 printClassStruct(cn, classdefout);
1031 classdefout.println("};\n");
1034 /* Cycle through LocalityBindings */
1035 HashSet<MethodDescriptor> nativemethods=new HashSet<MethodDescriptor>();
1036 Set<LocalityBinding> lbset=locality.getClassBindings(cn);
1038 for(Iterator<LocalityBinding> lbit=lbset.iterator();lbit.hasNext();) {
1039 LocalityBinding lb=lbit.next();
1040 MethodDescriptor md=lb.getMethod();
1041 if (md.getModifiers().isNative()) {
1042 //make sure we only print a native method once
1043 if (nativemethods.contains(md)) {
1044 FlatMethod fm=state.getMethodFlat(md);
1045 generateTempStructs(fm, lb);
1048 nativemethods.add(md);
1050 generateMethod(cn, md, lb, headersout, output);
1053 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1054 MethodDescriptor md=(MethodDescriptor)methodit.next();
1055 if (md.getModifiers().isNative()&&!nativemethods.contains(md)) {
1056 //Need to build param structure for library code
1057 FlatMethod fm=state.getMethodFlat(md);
1058 generateTempStructs(fm, null);
1059 generateMethodParam(cn, md, null, output);
1064 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1065 MethodDescriptor md=(MethodDescriptor)methodit.next();
1066 generateMethod(cn, md, null, headersout, output);
1070 private void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter output) {
1071 /* Output parameter structure */
1072 if (GENERATEPRECISEGC) {
1073 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1074 if (state.DSM&&lb!=null)
1075 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1077 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1078 output.println(" int size;");
1079 output.println(" void * next;");
1080 for(int i=0;i<objectparams.numPointers();i++) {
1081 TempDescriptor temp=objectparams.getPointer(i);
1082 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1084 output.println("};\n");
1089 private void generateMethod(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter headersout, PrintWriter output) {
1090 FlatMethod fm=state.getMethodFlat(md);
1091 generateTempStructs(fm, lb);
1093 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1094 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md);
1096 generateMethodParam(cn, md, lb, output);
1098 /* Output temp structure */
1099 if (GENERATEPRECISEGC) {
1101 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1103 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1104 output.println(" int size;");
1105 output.println(" void * next;");
1106 for(int i=0;i<objecttemps.numPointers();i++) {
1107 TempDescriptor temp=objecttemps.getPointer(i);
1108 if (temp.getType().isNull())
1109 output.println(" void * "+temp.getSafeSymbol()+";");
1111 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1113 output.println("};\n");
1116 /********* Output method declaration ***********/
1118 /* First the return type */
1119 if (md.getReturnType()!=null) {
1120 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1121 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1123 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1125 //catch the constructor case
1126 headersout.print("void ");
1128 /* Next the method name */
1130 headersout.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1132 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1134 boolean printcomma=false;
1135 if (GENERATEPRECISEGC) {
1137 headersout.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1139 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1143 if (state.DSM&&lb.isAtomic()&&!md.getModifiers().isNative()) {
1145 headersout.print(", ");
1146 headersout.print("transrecord_t * trans");
1150 /* Output parameter list*/
1151 for(int i=0;i<objectparams.numPrimitives();i++) {
1152 TempDescriptor temp=objectparams.getPrimitive(i);
1154 headersout.print(", ");
1156 if (temp.getType().isClass()||temp.getType().isArray())
1157 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1159 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1161 headersout.println(");\n");
1165 /** This function outputs (1) structures that parameters are
1166 * passed in (when PRECISE GC is enabled) and (2) function
1167 * prototypes for the tasks */
1169 private void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1170 /* Cycle through tasks */
1171 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1173 while(taskit.hasNext()) {
1174 /* Classify parameters */
1175 TaskDescriptor task=(TaskDescriptor)taskit.next();
1176 FlatMethod fm=state.getMethodFlat(task);
1177 generateTempStructs(fm, null);
1179 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1180 TempObject objecttemps=(TempObject) tempstable.get(task);
1182 /* Output parameter structure */
1183 if (GENERATEPRECISEGC) {
1184 output.println("struct "+task.getSafeSymbol()+"_params {");
1186 output.println(" int size;");
1187 output.println(" void * next;");
1188 for(int i=0;i<objectparams.numPointers();i++) {
1189 TempDescriptor temp=objectparams.getPointer(i);
1190 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1193 output.println("};\n");
1194 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1195 maxtaskparams=objectparams.numPointers()+fm.numTags();
1199 /* Output temp structure */
1200 if (GENERATEPRECISEGC) {
1201 output.println("struct "+task.getSafeSymbol()+"_locals {");
1202 output.println(" int size;");
1203 output.println(" void * next;");
1204 for(int i=0;i<objecttemps.numPointers();i++) {
1205 TempDescriptor temp=objecttemps.getPointer(i);
1206 if (temp.getType().isNull())
1207 output.println(" void * "+temp.getSafeSymbol()+";");
1208 else if(temp.getType().isTag())
1209 output.println(" struct "+
1210 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1212 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1214 output.println("};\n");
1217 /* Output task declaration */
1218 headersout.print("void " + task.getSafeSymbol()+"(");
1220 boolean printcomma=false;
1221 if (GENERATEPRECISEGC) {
1222 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1224 headersout.print("void * parameterarray[]");
1225 headersout.println(");\n");
1229 /***** Generate code for FlatMethod fm. *****/
1231 private void generateFlatMethod(FlatMethod fm, LocalityBinding lb, PrintWriter output) {
1232 if (State.PRINTFLAT)
1233 System.out.println(fm.printMethod());
1234 MethodDescriptor md=fm.getMethod();
1236 TaskDescriptor task=fm.getTask();
1238 ClassDescriptor cn=md!=null?md.getClassDesc():null;
1240 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:md!=null?md:task);
1241 generateHeader(fm, lb, md!=null?md:task,output);
1242 TempObject objecttemp=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1243 if (state.DSM&&lb.getHasAtomic()) {
1244 output.println("transrecord_t * trans;");
1247 if (GENERATEPRECISEGC) {
1248 if (md!=null&&state.DSM)
1249 output.print(" struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1250 else if (md!=null&&!state.DSM)
1251 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1253 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
1255 output.print(objecttemp.numPointers()+",");
1256 output.print(paramsprefix);
1257 for(int j=0;j<objecttemp.numPointers();j++)
1258 output.print(", NULL");
1259 output.println("};");
1262 for(int i=0;i<objecttemp.numPrimitives();i++) {
1263 TempDescriptor td=objecttemp.getPrimitive(i);
1264 TypeDescriptor type=td.getType();
1266 output.println(" void * "+td.getSafeSymbol()+";");
1267 else if (type.isClass()||type.isArray())
1268 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1270 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1273 /* Assign labels to FlatNode's if necessary.*/
1275 Hashtable<FlatNode, Integer> nodetolabel=assignLabels(fm);
1277 /* Check to see if we need to do a GC if this is a
1278 * multi-threaded program...*/
1280 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1281 if (state.DSM&&lb.isAtomic())
1282 output.println("checkcollect2(&"+localsprefix+",trans);");
1284 output.println("checkcollect(&"+localsprefix+");");
1287 /* Do the actual code generation */
1288 FlatNode current_node=null;
1289 HashSet tovisit=new HashSet();
1290 HashSet visited=new HashSet();
1291 tovisit.add(fm.getNext(0));
1292 while(current_node!=null||!tovisit.isEmpty()) {
1293 if (current_node==null) {
1294 current_node=(FlatNode)tovisit.iterator().next();
1295 tovisit.remove(current_node);
1297 visited.add(current_node);
1298 if (nodetolabel.containsKey(current_node))
1299 output.println("L"+nodetolabel.get(current_node)+":");
1300 if (state.INSTRUCTIONFAILURE) {
1301 if (state.THREAD||state.DSM) {
1302 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
1305 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
1307 if (current_node.numNext()==0) {
1309 generateFlatNode(fm, lb, current_node, output);
1310 if (current_node.kind()!=FKind.FlatReturnNode) {
1311 output.println(" return;");
1314 } else if(current_node.numNext()==1) {
1316 generateFlatNode(fm, lb, current_node, output);
1317 FlatNode nextnode=current_node.getNext(0);
1318 if (visited.contains(nextnode)) {
1319 output.println("goto L"+nodetolabel.get(nextnode)+";");
1322 current_node=nextnode;
1323 } else if (current_node.numNext()==2) {
1326 generateFlatCondBranch(fm, lb, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
1327 if (!visited.contains(current_node.getNext(1)))
1328 tovisit.add(current_node.getNext(1));
1329 if (visited.contains(current_node.getNext(0))) {
1330 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
1333 current_node=current_node.getNext(0);
1334 } else throw new Error();
1336 output.println("}\n\n");
1339 /** This method assigns labels to FlatNodes */
1341 //private Hashtable<FlatNode, Integer> assignLabels(FlatMethod fm) {
1342 protected Hashtable<FlatNode, Integer> assignLabels(FlatMethod fm) {
1343 HashSet tovisit=new HashSet();
1344 HashSet visited=new HashSet();
1346 Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
1347 tovisit.add(fm.getNext(0));
1349 /*Assign labels first. A node needs a label if the previous
1350 * node has two exits or this node is a join point. */
1352 while(!tovisit.isEmpty()) {
1353 FlatNode fn=(FlatNode)tovisit.iterator().next();
1356 for(int i=0;i<fn.numNext();i++) {
1357 FlatNode nn=fn.getNext(i);
1359 //1) Edge >1 of node
1360 nodetolabel.put(nn,new Integer(labelindex++));
1362 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1366 nodetolabel.put(nn,new Integer(labelindex++));
1374 /** Generate text string that corresponds to the TempDescriptor td. */
1375 //private String generateTemp(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1376 protected String generateTemp(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1377 MethodDescriptor md=fm.getMethod();
1378 TaskDescriptor task=fm.getTask();
1379 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1381 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1382 return td.getSafeSymbol();
1385 if (objecttemps.isLocalPtr(td)) {
1386 return localsprefix+"."+td.getSafeSymbol();
1389 if (objecttemps.isParamPtr(td)) {
1390 return paramsprefix+"->"+td.getSafeSymbol();
1395 //private void generateFlatNode(FlatMethod fm, LocalityBinding lb, FlatNode fn, PrintWriter output) {
1396 protected void generateFlatNode(FlatMethod fm, LocalityBinding lb, FlatNode fn, PrintWriter output) {
1398 case FKind.FlatAtomicEnterNode:
1399 generateFlatAtomicEnterNode(fm, lb, (FlatAtomicEnterNode) fn, output);
1401 case FKind.FlatAtomicExitNode:
1402 generateFlatAtomicExitNode(fm, lb, (FlatAtomicExitNode) fn, output);
1404 case FKind.FlatGlobalConvNode:
1405 generateFlatGlobalConvNode(fm, lb, (FlatGlobalConvNode) fn, output);
1407 case FKind.FlatTagDeclaration:
1408 generateFlatTagDeclaration(fm, lb, (FlatTagDeclaration) fn,output);
1410 case FKind.FlatCall:
1411 generateFlatCall(fm, lb, (FlatCall) fn,output);
1413 case FKind.FlatFieldNode:
1414 generateFlatFieldNode(fm, lb, (FlatFieldNode) fn,output);
1416 case FKind.FlatElementNode:
1417 generateFlatElementNode(fm, lb, (FlatElementNode) fn,output);
1419 case FKind.FlatSetElementNode:
1420 generateFlatSetElementNode(fm, lb, (FlatSetElementNode) fn,output);
1422 case FKind.FlatSetFieldNode:
1423 generateFlatSetFieldNode(fm, lb, (FlatSetFieldNode) fn,output);
1426 generateFlatNew(fm, lb, (FlatNew) fn,output);
1428 case FKind.FlatOpNode:
1429 generateFlatOpNode(fm, lb, (FlatOpNode) fn,output);
1431 case FKind.FlatCastNode:
1432 generateFlatCastNode(fm, lb, (FlatCastNode) fn,output);
1434 case FKind.FlatLiteralNode:
1435 generateFlatLiteralNode(fm, lb, (FlatLiteralNode) fn,output);
1437 case FKind.FlatReturnNode:
1438 generateFlatReturnNode(fm, lb, (FlatReturnNode) fn,output);
1441 output.println("/* nop */");
1443 case FKind.FlatBackEdge:
1444 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1445 if(state.DSM&&locality.getAtomic(lb).get(fn).intValue()>0) {
1446 output.println("checkcollect2(&"+localsprefix+",trans);");
1448 output.println("checkcollect(&"+localsprefix+");");
1450 output.println("/* nop */");
1452 case FKind.FlatCheckNode:
1453 generateFlatCheckNode(fm, lb, (FlatCheckNode) fn, output);
1455 case FKind.FlatFlagActionNode:
1456 generateFlatFlagActionNode(fm, lb, (FlatFlagActionNode) fn, output);
1458 case FKind.FlatPrefetchNode:
1459 generateFlatPrefetchNode(fm,lb, (FlatPrefetchNode) fn, output);
1465 public void generateFlatPrefetchNode(FlatMethod fm, LocalityBinding lb, FlatPrefetchNode fpn, PrintWriter output) {
1466 if (state.PREFETCH) {
1467 Vector oids = new Vector();
1468 Vector fieldoffset = new Vector();
1469 Vector endoffset = new Vector();
1470 int tuplecount = 0; //Keeps track of number of prefetch tuples that need to be generated
1471 for(Iterator it = fpn.hspp.iterator();it.hasNext();) {
1472 PrefetchPair pp = (PrefetchPair) it.next();
1473 Integer statusbase = locality.getNodePreTempInfo(lb,fpn).get(pp.base);
1474 /* Find prefetches that can generate oid */
1475 if(statusbase == LocalityAnalysis.GLOBAL) {
1476 generateTransCode(fm, lb, pp, oids, fieldoffset, endoffset, tuplecount, locality.getAtomic(lb).get(fpn).intValue()>0, false);
1478 } else if (statusbase == LocalityAnalysis.LOCAL) {
1479 generateTransCode(fm,lb,pp,oids,fieldoffset,endoffset,tuplecount,false,true);
1486 output.println("{");
1487 output.println("/* prefetch */");
1488 output.println("void * prefptr;");
1489 output.println("int tmpindex;");
1490 /*Create C code for oid array */
1491 output.print(" unsigned int oidarray_[] = {");
1492 boolean needcomma=false;
1493 for (Iterator it = oids.iterator();it.hasNext();) {
1496 output.print(it.next());
1499 output.println("};");
1501 /*Create C code for endoffset values */
1502 output.print(" unsigned short endoffsetarry_[] = {");
1504 for (Iterator it = endoffset.iterator();it.hasNext();) {
1507 output.print(it.next());
1510 output.println("};");
1512 /*Create C code for Field Offset Values */
1513 output.print(" short fieldarry_[] = {");
1515 for (Iterator it = fieldoffset.iterator();it.hasNext();) {
1518 output.print(it.next());
1521 output.println("};");
1522 /* make the prefetch call to Runtime */
1523 output.println(" prefetch("+tuplecount+", oidarray_, endoffsetarry_, fieldarry_);");
1524 output.println("}");
1528 public void generateTransCode(FlatMethod fm, LocalityBinding lb,PrefetchPair pp, Vector oids, Vector fieldoffset, Vector endoffset, int tuplecount, boolean inside, boolean localbase) {
1529 short offsetcount = 0;
1533 } else if (localbase) {
1534 for(;breakindex<pp.desc.size();breakindex++) {
1535 Descriptor desc=pp.getDescAt(breakindex);
1536 if (desc instanceof FieldDescriptor) {
1537 FieldDescriptor fd=(FieldDescriptor)desc;
1538 if (fd.isGlobal()) {
1546 if (breakindex>pp.desc.size()) //all local
1549 TypeDescriptor lasttype=pp.base.getType();
1550 String basestr=generateTemp(fm, pp.base, lb);
1552 boolean maybenull=fm.getMethod().isStatic()||
1553 !pp.base.equals(fm.getParameter(0));
1555 for(int i=0;i<breakindex;i++) {
1556 String indexcheck="";
1558 Descriptor desc=pp.getDescAt(i);
1559 if (desc instanceof FieldDescriptor) {
1560 FieldDescriptor fd=(FieldDescriptor)desc;
1562 if (!teststr.equals(""))
1564 teststr+="((prefptr="+basestr+")!=NULL)";
1565 basestr="((struct "+lasttype.getSafeSymbol()+" *)prefptr)->"+fd.getSafeSymbol();
1567 basestr=basestr+"->"+fd.getSafeSymbol();
1570 lasttype=fd.getType();
1572 IndexDescriptor id=(IndexDescriptor)desc;
1573 indexcheck="((tmpindex=";
1574 for(int j=0;j<id.tddesc.size();j++) {
1575 indexcheck+=generateTemp(fm, id.getTempDescAt(j), lb)+"+";
1577 indexcheck+=id.offset+")>=0)&&(tmpindex<((struct ArrayObject *)prefptr)->___length___)";
1579 if (!teststr.equals(""))
1581 teststr+="((prefptr="+basestr+")!= NULL) &&"+indexcheck;
1582 basestr="((void **)(((char *) &(((struct ArrayObject *)prefptr)->___length___))+sizeof(int)))[tmpindex]";
1584 lasttype=lasttype.dereference();
1589 if (teststr.equals("")) {
1590 oid="((unsigned int)"+basestr+")";
1592 oid="((unsigned int)(("+teststr+")?"+basestr+":NULL))";
1596 for(int i = breakindex; i < pp.desc.size(); i++) {
1597 String newfieldoffset;
1598 Object desc = pp.getDescAt(i);
1599 if(desc instanceof FieldDescriptor) {
1600 FieldDescriptor fd=(FieldDescriptor)desc;
1601 newfieldoffset = new String("(unsigned int)(&(((struct "+ lasttype.getSafeSymbol()+" *)0)->"+ fd.getSafeSymbol()+ "))");
1602 lasttype=fd.getType();
1604 newfieldoffset = "";
1605 IndexDescriptor id=(IndexDescriptor)desc;
1606 for(int j = 0; j < id.tddesc.size(); j++) {
1607 newfieldoffset += generateTemp(fm, id.getTempDescAt(j), lb) + "+";
1609 newfieldoffset += id.offset.toString();
1610 lasttype=lasttype.dereference();
1612 fieldoffset.add(newfieldoffset);
1615 int base=(tuplecount>0)?((Short)endoffset.get(tuplecount-1)).intValue():0;
1616 base+=pp.desc.size()-breakindex;
1617 endoffset.add(new Short((short)base));
1622 public void generateFlatGlobalConvNode(FlatMethod fm, LocalityBinding lb, FlatGlobalConvNode fgcn, PrintWriter output) {
1623 if (lb!=fgcn.getLocality())
1625 /* Have to generate flat globalconv */
1626 if (fgcn.getMakePtr()) {
1627 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)transRead(trans, (unsigned int) "+generateTemp(fm, fgcn.getSrc(),lb)+");");
1629 /* Need to convert to OID */
1630 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)COMPOID("+generateTemp(fm, fgcn.getSrc(),lb)+");");
1634 public void generateFlatAtomicEnterNode(FlatMethod fm, LocalityBinding lb, FlatAtomicEnterNode faen, PrintWriter output) {
1635 /* Check to see if we need to generate code for this atomic */
1636 if (locality.getAtomic(lb).get(faen.getPrev(0)).intValue()>0)
1638 /* Backup the temps. */
1639 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1640 TempDescriptor tmp=tmpit.next();
1641 output.println(generateTemp(fm, backuptable.get(tmp),lb)+"="+generateTemp(fm,tmp,lb)+";");
1643 output.println("goto transstart"+faen.getIdentifier()+";");
1645 /******* Print code to retry aborted transaction *******/
1646 output.println("transretry"+faen.getIdentifier()+":");
1649 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1650 TempDescriptor tmp=tmpit.next();
1651 output.println(generateTemp(fm, tmp,lb)+"="+generateTemp(fm,backuptable.get(tmp),lb)+";");
1654 /********* Need to revert local object store ********/
1655 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1657 output.println("while ("+revertptr+") {");
1658 output.println("struct ___Object___ * tmpptr;");
1659 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1660 output.println("REVERT_OBJ("+revertptr+");");
1661 output.println(revertptr+"=tmpptr;");
1662 output.println("}");
1664 /******* Tell the runtime to start the transaction *******/
1666 output.println("transstart"+faen.getIdentifier()+":");
1667 output.println("trans=transStart();");
1670 public void generateFlatAtomicExitNode(FlatMethod fm, LocalityBinding lb, FlatAtomicExitNode faen, PrintWriter output) {
1671 /* Check to see if we need to generate code for this atomic */
1672 if (locality.getAtomic(lb).get(faen).intValue()>0)
1674 //store the revert list before we lose the transaction object
1675 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1676 output.println(revertptr+"=trans->revertlist;");
1677 output.println("if (transCommit(trans)) {");
1678 /* Transaction aborts if it returns true */
1679 output.println("goto transretry"+faen.getAtomicEnter().getIdentifier()+";");
1680 output.println("} else {");
1681 /* Need to commit local object store */
1682 output.println("while ("+revertptr+") {");
1683 output.println("struct ___Object___ * tmpptr;");
1684 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1685 output.println("COMMIT_OBJ("+revertptr+");");
1686 output.println(revertptr+"=tmpptr;");
1687 output.println("}");
1688 output.println("}");
1691 private void generateFlatCheckNode(FlatMethod fm, LocalityBinding lb, FlatCheckNode fcn, PrintWriter output) {
1692 if (state.CONSCHECK) {
1693 String specname=fcn.getSpec();
1694 String varname="repairstate___";
1695 output.println("{");
1696 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1698 TempDescriptor[] temps=fcn.getTemps();
1699 String[] vars=fcn.getVars();
1700 for(int i=0;i<temps.length;i++) {
1701 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i],lb)+";");
1704 output.println("if (doanalysis"+specname+"("+varname+")) {");
1705 output.println("free"+specname+"_state("+varname+");");
1706 output.println("} else {");
1707 output.println("/* Bad invariant */");
1708 output.println("free"+specname+"_state("+varname+");");
1709 output.println("abort_task();");
1710 output.println("}");
1711 output.println("}");
1715 private void generateFlatCall(FlatMethod fm, LocalityBinding lb, FlatCall fc, PrintWriter output) {
1716 MethodDescriptor md=fc.getMethod();
1717 ParamsObject objectparams=(ParamsObject)paramstable.get(state.DSM?locality.getBinding(lb, fc):md);
1718 ClassDescriptor cn=md.getClassDesc();
1719 output.println("{");
1720 if (GENERATEPRECISEGC) {
1722 LocalityBinding fclb=locality.getBinding(lb, fc);
1723 output.print(" struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1725 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1727 output.print(objectparams.numPointers());
1728 output.print(", & "+localsprefix);
1729 if (md.getThis()!=null) {
1731 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis(),lb));
1733 if (fc.getThis()!=null&&md.getThis()==null) {
1734 System.out.println("WARNING!!!!!!!!!!!!");
1735 System.out.println("Source code calls static method"+md+"on an object in "+fm.getMethod()+"!");
1739 for(int i=0;i<fc.numArgs();i++) {
1740 Descriptor var=md.getParameter(i);
1741 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1742 if (objectparams.isParamPtr(paramtemp)) {
1743 TempDescriptor targ=fc.getArg(i);
1745 TypeDescriptor td=md.getParamType(i);
1747 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1749 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1752 output.println("};");
1757 if (fc.getReturnTemp()!=null)
1758 output.print(generateTemp(fm,fc.getReturnTemp(),lb)+"=");
1760 /* Do we need to do virtual dispatch? */
1761 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
1764 LocalityBinding fclb=locality.getBinding(lb, fc);
1765 output.print(cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1767 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1772 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1773 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1775 output.print(md.getReturnType().getSafeSymbol()+" ");
1776 output.print("(*)(");
1778 boolean printcomma=false;
1779 if (GENERATEPRECISEGC) {
1781 LocalityBinding fclb=locality.getBinding(lb, fc);
1782 output.print("struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1784 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1788 for(int i=0;i<objectparams.numPrimitives();i++) {
1789 TempDescriptor temp=objectparams.getPrimitive(i);
1793 if (temp.getType().isClass()||temp.getType().isArray())
1794 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
1796 output.print(temp.getType().getSafeSymbol());
1799 if (state.DSM&&locality.getBinding(lb,fc).isAtomic()&&!fc.getMethod().getModifiers().isNative()) {
1800 LocalityBinding fclb=locality.getBinding(lb, fc);
1803 output.print("transrecord_t *");
1808 LocalityBinding fclb=locality.getBinding(lb, fc);
1809 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getLocalityNumber(fclb)+"])");
1811 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
1815 boolean needcomma=false;
1816 if (GENERATEPRECISEGC) {
1817 output.print("&__parameterlist__");
1821 if (state.DSM&&locality.getBinding(lb,fc).isAtomic()&&!fc.getMethod().getModifiers().isNative()) {
1824 output.print("trans");
1828 if (!GENERATEPRECISEGC) {
1829 if (fc.getThis()!=null) {
1830 TypeDescriptor ptd=md.getThis().getType();
1833 if (ptd.isClass()&&!ptd.isArray())
1834 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1835 output.print(generateTemp(fm,fc.getThis(),lb));
1840 for(int i=0;i<fc.numArgs();i++) {
1841 Descriptor var=md.getParameter(i);
1842 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1843 if (objectparams.isParamPrim(paramtemp)) {
1844 TempDescriptor targ=fc.getArg(i);
1848 TypeDescriptor ptd=md.getParamType(i);
1849 if (ptd.isClass()&&!ptd.isArray())
1850 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1851 output.print(generateTemp(fm, targ,lb));
1855 output.println(");");
1856 output.println(" }");
1859 private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
1860 Set subclasses=typeutil.getSubClasses(thiscd);
1861 if (subclasses==null)
1863 for(Iterator classit=subclasses.iterator();classit.hasNext();) {
1864 ClassDescriptor cd=(ClassDescriptor)classit.next();
1865 Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
1866 for(Iterator matchit=possiblematches.iterator();matchit.hasNext();) {
1867 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
1868 if (md.matches(matchmd))
1875 private void generateFlatFieldNode(FlatMethod fm, LocalityBinding lb, FlatFieldNode ffn, PrintWriter output) {
1877 Integer status=locality.getNodePreTempInfo(lb,ffn).get(ffn.getSrc());
1878 if (status==LocalityAnalysis.GLOBAL) {
1879 String field=ffn.getField().getSafeSymbol();
1880 String src=generateTemp(fm, ffn.getSrc(),lb);
1881 String dst=generateTemp(fm, ffn.getDst(),lb);
1883 if (ffn.getField().getType().isPtr()) {
1885 //TODO: Uncomment this when we have runtime support
1886 //if (ffn.getSrc()==ffn.getDst()) {
1887 //output.println("{");
1888 //output.println("void * temp="+src+";");
1889 //output.println("if (temp&0x1) {");
1890 //output.println("temp=(void *) transRead(trans, (unsigned int) temp);");
1891 //output.println(src+"->"+field+"="+temp+";");
1892 //output.println("}");
1893 //output.println(dst+"=temp;");
1894 //output.println("}");
1896 output.println(dst+"="+ src +"->"+field+ ";");
1897 //output.println("if ("+dst+"&0x1) {");
1898 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1899 //output.println(src+"->"+field+"="+src+"->"+field+";");
1900 //output.println("}");
1903 output.println(dst+"="+ src+"->"+field+";");
1905 } else if (status==LocalityAnalysis.LOCAL) {
1906 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1907 } else if (status==LocalityAnalysis.EITHER) {
1908 //Code is reading from a null pointer
1909 output.println("if ("+generateTemp(fm, ffn.getSrc(),lb)+") {");
1910 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
1911 //This should throw a suitable null pointer error
1912 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1914 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
1916 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1920 private void generateFlatSetFieldNode(FlatMethod fm, LocalityBinding lb, FlatSetFieldNode fsfn, PrintWriter output) {
1921 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
1922 throw new Error("Can't set array length");
1923 if (state.DSM && locality.getAtomic(lb).get(fsfn).intValue()>0) {
1924 Integer statussrc=locality.getNodePreTempInfo(lb,fsfn).get(fsfn.getSrc());
1925 Integer statusdst=locality.getNodeTempInfo(lb).get(fsfn).get(fsfn.getDst());
1926 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
1928 String src=generateTemp(fm,fsfn.getSrc(),lb);
1929 String dst=generateTemp(fm,fsfn.getDst(),lb);
1931 output.println("{");
1932 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
1934 if (statusdst.equals(LocalityAnalysis.GLOBAL)) {
1937 output.println("*((unsigned int *)&("+dst+"->___localcopy___))|=DIRTY;");
1939 output.println("*((unsigned int *)&("+glbdst+"->"+ fsfn.getField().getSafeSymbol()+"))=srcoid;");
1941 output.println(glbdst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1942 } else if (statusdst.equals(LocalityAnalysis.LOCAL)) {
1943 /** Check if we need to copy */
1944 output.println("if(!"+dst+"->"+localcopystr+") {");
1945 /* Link object into list */
1946 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1947 output.println(revertptr+"=trans->revertlist;");
1948 if (GENERATEPRECISEGC)
1949 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
1951 output.println("COPY_OBJ("+dst+");");
1952 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
1953 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
1954 output.println("}");
1956 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
1958 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1959 } else if (statusdst.equals(LocalityAnalysis.EITHER)) {
1960 //writing to a null...bad
1961 output.println("if ("+dst+") {");
1962 output.println("printf(\"BIG ERROR 2\\n\");exit(-1);}");
1964 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
1966 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1969 output.println("}");
1972 output.println(generateTemp(fm, fsfn.getDst(),lb)+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc(),lb)+";");
1976 private void generateFlatElementNode(FlatMethod fm, LocalityBinding lb, FlatElementNode fen, PrintWriter output) {
1977 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
1980 if (elementtype.isArray()||elementtype.isClass())
1983 type=elementtype.getSafeSymbol()+" ";
1985 if (fen.needsBoundsCheck()) {
1986 output.println("if ("+generateTemp(fm, fen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fen.getIndex(),lb)+" >= "+generateTemp(fm,fen.getSrc(),lb) + "->___length___)");
1987 output.println("failedboundschk();");
1990 Integer status=locality.getNodePreTempInfo(lb,fen).get(fen.getSrc());
1991 if (status==LocalityAnalysis.GLOBAL) {
1992 String dst=generateTemp(fm, fen.getDst(),lb);
1994 if (elementtype.isPtr()) {
1995 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
1996 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1998 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2000 } else if (status==LocalityAnalysis.LOCAL) {
2001 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2002 } else if (status==LocalityAnalysis.EITHER) {
2003 //Code is reading from a null pointer
2004 output.println("if ("+generateTemp(fm, fen.getSrc(),lb)+") {");
2005 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
2006 //This should throw a suitable null pointer error
2007 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2009 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
2011 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2015 private void generateFlatSetElementNode(FlatMethod fm, LocalityBinding lb, FlatSetElementNode fsen, PrintWriter output) {
2016 //TODO: need dynamic check to make sure this assignment is actually legal
2017 //Because Object[] could actually be something more specific...ie. Integer[]
2019 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2022 if (elementtype.isArray()||elementtype.isClass())
2025 type=elementtype.getSafeSymbol()+" ";
2028 if (fsen.needsBoundsCheck()) {
2029 output.println("if ("+generateTemp(fm, fsen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fsen.getIndex(),lb)+" >= "+generateTemp(fm,fsen.getDst(),lb) + "->___length___)");
2030 output.println("failedboundschk();");
2033 if (state.DSM && locality.getAtomic(lb).get(fsen).intValue()>0) {
2034 Integer statussrc=locality.getNodePreTempInfo(lb,fsen).get(fsen.getSrc());
2035 Integer statusdst=locality.getNodePreTempInfo(lb,fsen).get(fsen.getDst());
2036 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
2037 boolean dstglobal=statusdst==LocalityAnalysis.GLOBAL;
2038 boolean dstlocal=statusdst==LocalityAnalysis.LOCAL;
2041 output.println("*((unsigned int *)&("+generateTemp(fm,fsen.getDst(),lb)+"->___localcopy___))|=DIRTY;");
2042 } else if (dstlocal) {
2043 /** Check if we need to copy */
2044 String dst=generateTemp(fm, fsen.getDst(),lb);
2045 output.println("if(!"+dst+"->"+localcopystr+") {");
2046 /* Link object into list */
2047 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2048 output.println(revertptr+"=trans->revertlist;");
2049 if (GENERATEPRECISEGC)
2050 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
2052 output.println("COPY_OBJ("+dst+");");
2053 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
2054 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
2055 output.println("}");
2056 } else throw new Error("Unknown array type");
2058 output.println("{");
2059 String src=generateTemp(fm, fsen.getSrc(), lb);
2060 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
2061 output.println("((int*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]=srcoid;");
2062 output.println("}");
2064 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2067 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2070 private void generateFlatNew(FlatMethod fm, LocalityBinding lb, FlatNew fn, PrintWriter output) {
2071 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2072 //Stash pointer in case of GC
2073 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2074 output.println(revertptr+"=trans->revertlist;");
2076 if (fn.getType().isArray()) {
2077 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2078 if (fn.isGlobal()) {
2079 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarrayglobal(trans, "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2080 } else if (GENERATEPRECISEGC) {
2081 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray(&"+localsprefix+", "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2083 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2086 if (fn.isGlobal()) {
2087 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newglobal(trans, "+fn.getType().getClassDesc().getId()+");");
2088 } else if (GENERATEPRECISEGC) {
2089 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new(&"+localsprefix+", "+fn.getType().getClassDesc().getId()+");");
2091 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2094 if(state.MULTICORE) {
2095 output.println(" " + generateTemp(fm,fn.getDst(),lb)+"->isolate = 1;");
2096 output.println(" " + generateTemp(fm,fn.getDst(),lb)+"->version = 0;");
2098 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2099 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2100 output.println("trans->revertlist="+revertptr+";");
2104 private void generateFlatTagDeclaration(FlatMethod fm, LocalityBinding lb, FlatTagDeclaration fn, PrintWriter output) {
2105 if (GENERATEPRECISEGC) {
2106 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag(&"+localsprefix+", "+state.getTagId(fn.getType())+");");
2108 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag("+state.getTagId(fn.getType())+");");
2112 private void generateFlatOpNode(FlatMethod fm, LocalityBinding lb, FlatOpNode fon, PrintWriter output) {
2113 if (fon.getRight()!=null) {
2114 if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2115 if (fon.getLeft().getType().isLong())
2116 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2118 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned int)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2121 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+fon.getOp().toString()+generateTemp(fm,fon.getRight(),lb)+";");
2122 } else if (fon.getOp().getOp()==Operation.ASSIGN)
2123 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2124 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2125 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2126 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2127 output.println(generateTemp(fm, fon.getDest(),lb)+" = -"+generateTemp(fm, fon.getLeft(),lb)+";");
2128 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2129 output.println(generateTemp(fm, fon.getDest(),lb)+" = !"+generateTemp(fm, fon.getLeft(),lb)+";");
2130 else if (fon.getOp().getOp()==Operation.COMP)
2131 output.println(generateTemp(fm, fon.getDest(),lb)+" = ~"+generateTemp(fm, fon.getLeft(),lb)+";");
2132 else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2133 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+"->fses==NULL;");
2135 output.println(generateTemp(fm, fon.getDest(),lb)+fon.getOp().toString()+generateTemp(fm, fon.getLeft(),lb)+";");
2138 private void generateFlatCastNode(FlatMethod fm, LocalityBinding lb, FlatCastNode fcn, PrintWriter output) {
2139 /* TODO: Do type check here */
2140 if (fcn.getType().isArray()) {
2142 } else if (fcn.getType().isClass())
2143 output.println(generateTemp(fm,fcn.getDst(),lb)+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc(),lb)+";");
2145 output.println(generateTemp(fm,fcn.getDst(),lb)+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc(),lb)+";");
2148 private void generateFlatLiteralNode(FlatMethod fm, LocalityBinding lb, FlatLiteralNode fln, PrintWriter output) {
2149 if (fln.getValue()==null)
2150 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2151 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2152 if (GENERATEPRECISEGC) {
2153 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2154 //Stash pointer in case of GC
2155 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2156 output.println(revertptr+"=trans->revertlist;");
2158 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(&"+localsprefix+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2159 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2160 //Stash pointer in case of GC
2161 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2162 output.println("trans->revertlist="+revertptr+";");
2165 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2167 } else if (fln.getType().isBoolean()) {
2168 if (((Boolean)fln.getValue()).booleanValue())
2169 output.println(generateTemp(fm, fln.getDst(),lb)+"=1;");
2171 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2172 } else if (fln.getType().isChar()) {
2173 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2174 output.println(generateTemp(fm, fln.getDst(),lb)+"='"+st+"';");
2175 } else if (fln.getType().isLong()) {
2176 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+"LL;");
2178 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+";");
2181 protected void generateFlatReturnNode(FlatMethod fm, LocalityBinding lb, FlatReturnNode frn, PrintWriter output) {
2182 if (frn.getReturnTemp()!=null) {
2183 if (frn.getReturnTemp().getType().isPtr())
2184 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2186 output.println("return "+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2188 output.println("return;");
2192 //private void generateFlatCondBranch(FlatMethod fm, LocalityBinding lb, FlatCondBranch fcb, String label, PrintWriter output) {
2193 protected void generateFlatCondBranch(FlatMethod fm, LocalityBinding lb, FlatCondBranch fcb, String label, PrintWriter output) {
2194 output.println("if (!"+generateTemp(fm, fcb.getTest(),lb)+") goto "+label+";");
2197 /** This method generates header information for the method or
2198 * task referenced by the Descriptor des. */
2200 private void generateHeader(FlatMethod fm, LocalityBinding lb, Descriptor des, PrintWriter output) {
2202 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:des);
2203 MethodDescriptor md=null;
2204 TaskDescriptor task=null;
2205 if (des instanceof MethodDescriptor)
2206 md=(MethodDescriptor) des;
2208 task=(TaskDescriptor) des;
2210 ClassDescriptor cn=md!=null?md.getClassDesc():null;
2212 if (md!=null&&md.getReturnType()!=null) {
2213 if (md.getReturnType().isClass()||md.getReturnType().isArray())
2214 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2216 output.print(md.getReturnType().getSafeSymbol()+" ");
2218 //catch the constructor case
2219 output.print("void ");
2222 output.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2224 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2226 output.print(task.getSafeSymbol()+"(");
2228 boolean printcomma=false;
2229 if (GENERATEPRECISEGC) {
2232 output.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2234 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2236 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2240 if (state.DSM&&lb.isAtomic()) {
2243 output.print("transrecord_t * trans");
2249 for(int i=0;i<objectparams.numPrimitives();i++) {
2250 TempDescriptor temp=objectparams.getPrimitive(i);
2254 if (temp.getType().isClass()||temp.getType().isArray())
2255 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2257 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2259 output.println(") {");
2260 } else if (!GENERATEPRECISEGC) {
2261 /* Imprecise Task */
2262 output.println("void * parameterarray[]) {");
2263 /* Unpack variables */
2264 for(int i=0;i<objectparams.numPrimitives();i++) {
2265 TempDescriptor temp=objectparams.getPrimitive(i);
2266 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2268 for(int i=0;i<fm.numTags();i++) {
2269 TempDescriptor temp=fm.getTag(i);
2270 int offset=i+objectparams.numPrimitives();
2271 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2274 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2275 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2276 } else output.println(") {");
2279 public void generateFlatFlagActionNode(FlatMethod fm, LocalityBinding lb, FlatFlagActionNode ffan, PrintWriter output) {
2280 output.println("/* FlatFlagActionNode */");
2283 /* Process tag changes */
2284 Relation tagsettable=new Relation();
2285 Relation tagcleartable=new Relation();
2287 Iterator tagsit=ffan.getTempTagPairs();
2288 while (tagsit.hasNext()) {
2289 TempTagPair ttp=(TempTagPair) tagsit.next();
2290 TempDescriptor objtmp=ttp.getTemp();
2291 TagDescriptor tag=ttp.getTag();
2292 TempDescriptor tagtmp=ttp.getTagTemp();
2293 boolean tagstatus=ffan.getTagChange(ttp);
2295 tagsettable.put(objtmp, tagtmp);
2297 tagcleartable.put(objtmp, tagtmp);
2302 Hashtable flagandtable=new Hashtable();
2303 Hashtable flagortable=new Hashtable();
2305 /* Process flag changes */
2306 Iterator flagsit=ffan.getTempFlagPairs();
2307 while(flagsit.hasNext()) {
2308 TempFlagPair tfp=(TempFlagPair)flagsit.next();
2309 TempDescriptor temp=tfp.getTemp();
2310 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2311 FlagDescriptor flag=tfp.getFlag();
2313 //Newly allocate objects that don't set any flags case
2314 if (flagortable.containsKey(temp)) {
2318 flagortable.put(temp,new Integer(mask));
2320 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2321 boolean flagstatus=ffan.getFlagChange(tfp);
2324 if (flagortable.containsKey(temp)) {
2325 mask=((Integer)flagortable.get(temp)).intValue();
2328 flagortable.put(temp,new Integer(mask));
2330 int mask=0xFFFFFFFF;
2331 if (flagandtable.containsKey(temp)) {
2332 mask=((Integer)flagandtable.get(temp)).intValue();
2334 mask&=(0xFFFFFFFF^flagid);
2335 flagandtable.put(temp,new Integer(mask));
2341 HashSet flagtagset=new HashSet();
2342 flagtagset.addAll(flagortable.keySet());
2343 flagtagset.addAll(flagandtable.keySet());
2344 flagtagset.addAll(tagsettable.keySet());
2345 flagtagset.addAll(tagcleartable.keySet());
2347 Iterator ftit=flagtagset.iterator();
2348 while(ftit.hasNext()) {
2349 TempDescriptor temp=(TempDescriptor)ftit.next();
2352 Set tagtmps=tagcleartable.get(temp);
2353 if (tagtmps!=null) {
2354 Iterator tagit=tagtmps.iterator();
2355 while(tagit.hasNext()) {
2356 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2357 if (GENERATEPRECISEGC)
2358 output.println("tagclear(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2360 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2364 tagtmps=tagsettable.get(temp);
2365 if (tagtmps!=null) {
2366 Iterator tagit=tagtmps.iterator();
2367 while(tagit.hasNext()) {
2368 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2369 if (GENERATEPRECISEGC)
2370 output.println("tagset(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2372 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp, lb)+", "+generateTemp(fm,tagtmp, lb)+");");
2377 int andmask=0xFFFFFFF;
2379 if (flagortable.containsKey(temp))
2380 ormask=((Integer)flagortable.get(temp)).intValue();
2381 if (flagandtable.containsKey(temp))
2382 andmask=((Integer)flagandtable.get(temp)).intValue();
2383 /*if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2384 output.println("flagorandinit("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2386 output.println("flagorand("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2388 generateFlagOrAnd(ffan, fm, lb, temp, output, ormask, andmask);
2389 generateObjectDistribute(ffan, fm, lb, temp, output);
2393 protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp,
2394 PrintWriter output, int ormask, int andmask) {
2395 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2396 output.println("flagorandinit("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2398 output.println("flagorand("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2402 protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp, PrintWriter output) {
2403 output.println("enqueueObject("+generateTemp(fm, temp, lb)+");");
2406 void generateOptionalHeader(PrintWriter headers) {
2409 headers.println("#include \"task.h\"\n\n");
2410 headers.println("#ifndef _OPTIONAL_STRUCT_");
2411 headers.println("#define _OPTIONAL_STRUCT_");
2413 //STRUCT PREDICATEMEMBER
2414 headers.println("struct predicatemember{");
2415 headers.println("int type;");
2416 headers.println("int numdnfterms;");
2417 headers.println("int * flags;");
2418 headers.println("int numtags;");
2419 headers.println("int * tags;\n};\n\n");
2421 //STRUCT OPTIONALTASKDESCRIPTOR
2422 headers.println("struct optionaltaskdescriptor{");
2423 headers.println("struct taskdescriptor * task;");
2424 headers.println("int index;");
2425 headers.println("int numenterflags;");
2426 headers.println("int * enterflags;");
2427 headers.println("int numpredicatemembers;");
2428 headers.println("struct predicatemember ** predicatememberarray;");
2429 headers.println("};\n\n");
2431 //STRUCT TASKFAILURE
2432 headers.println("struct taskfailure {");
2433 headers.println("struct taskdescriptor * task;");
2434 headers.println("int index;");
2435 headers.println("int numoptionaltaskdescriptors;");
2436 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2438 //STRUCT FSANALYSISWRAPPER
2439 headers.println("struct fsanalysiswrapper{");
2440 headers.println("int flags;");
2441 headers.println("int numtags;");
2442 headers.println("int * tags;");
2443 headers.println("int numtaskfailures;");
2444 headers.println("struct taskfailure ** taskfailurearray;");
2445 headers.println("int numoptionaltaskdescriptors;");
2446 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2448 //STRUCT CLASSANALYSISWRAPPER
2449 headers.println("struct classanalysiswrapper{");
2450 headers.println("int type;");
2451 headers.println("int numotd;");
2452 headers.println("struct optionaltaskdescriptor ** otdarray;");
2453 headers.println("int numfsanalysiswrappers;");
2454 headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
2456 headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
2458 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
2459 while(taskit.hasNext()) {
2460 TaskDescriptor td=(TaskDescriptor)taskit.next();
2461 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
2466 //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
2467 int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
2468 int predicateindex = 0;
2469 //iterate through the classes concerned by the predicate
2470 Set c_vard = predicate.vardescriptors;
2471 Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
2474 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext();){
2475 VarDescriptor vard = (VarDescriptor)vard_it.next();
2476 TypeDescriptor typed = vard.getType();
2478 //generate for flags
2479 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
2480 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2482 if (fen_hashset!=null){
2483 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext();){
2484 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
2486 DNFFlag dflag=fen.getDNF();
2487 numberterms+=dflag.size();
2489 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
2491 for(int j=0;j<dflag.size();j++) {
2493 output.println(",");
2494 Vector term=dflag.get(j);
2497 for(int k=0;k<term.size();k++) {
2498 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
2499 FlagDescriptor fd=dfa.getFlag();
2500 boolean negated=dfa.getNegated();
2501 int flagid=1<<((Integer)flags.get(fd)).intValue();
2506 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
2511 output.println("};\n");
2514 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
2515 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2518 for(int j=0;j<tagel.numTags();j++) {
2520 output.println(",");
2521 TempDescriptor tmp=tagel.getTemp(j);
2522 if (!slotnumber.containsKey(tmp)) {
2523 Integer slotint=new Integer(current_slot++);
2524 slotnumber.put(tmp,slotint);
2526 int slot=slotnumber.get(tmp).intValue();
2527 output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
2529 numtags = tagel.numTags();
2531 output.println("};");
2533 //store the result into a predicatemember struct
2534 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2535 output.println("/*type*/"+typed.getClassDesc().getId()+",");
2536 output.println("/* number of dnf terms */"+numberterms+",");
2537 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2538 output.println("/* number of tag */"+numtags+",");
2539 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2540 output.println("};\n");
2545 //generate an array that stores the entire predicate
2546 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2547 for( int j = 0; j<predicateindex; j++){
2548 if( j != predicateindex-1)output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2549 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2551 output.println("};\n");
2552 return predicateindex;
2556 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
2557 generateOptionalHeader(headers);
2559 output.println("#include \"optionalstruct.h\"\n\n");
2560 output.println("#include \"stdlib.h\"\n");
2562 HashSet processedcd = new HashSet();
2564 Enumeration e = safeexecution.keys();
2565 while (e.hasMoreElements()) {
2568 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
2569 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp);//will be used several times
2571 //Generate the struct of optionals
2572 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2573 numotd = c_otd.size();
2574 if(maxotd<numotd) maxotd = numotd;
2575 if( !c_otd.isEmpty() ){
2576 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2577 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2579 //generate the int arrays for the predicate
2580 Predicate predicate = otd.predicate;
2581 int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
2582 TreeSet<Integer> fsset=new TreeSet<Integer>();
2583 //iterate through possible FSes corresponding to
2584 //the state when entering
2586 for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext();){
2587 FlagState fs = (FlagState)fses.next();
2589 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2590 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2591 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2594 fsset.add(new Integer(flagid));
2595 //tag information not needed because tag
2596 //changes are not tolerated.
2599 output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2600 boolean needcomma=false;
2601 for(Iterator<Integer> it=fsset.iterator();it.hasNext();) {
2604 output.println(it.next());
2607 output.println("};\n");
2610 //generate optionaltaskdescriptor that actually
2611 //includes exit fses, predicate and the task
2613 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2614 output.println("&task_"+otd.td.getSafeSymbol()+",");
2615 output.println("/*index*/"+otd.getIndex()+",");
2616 output.println("/*number of enter flags*/"+fsset.size()+",");
2617 output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2618 output.println("/*number of members */"+predicateindex+",");
2619 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2620 output.println("};\n");
2624 // if there are no optionals, there is no need to build the rest of the struct
2626 output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
2627 c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2628 if( !c_otd.isEmpty() ){
2629 boolean needcomma=false;
2630 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2631 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2633 output.println(",");
2635 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2638 output.println("};\n");
2640 //get all the possible flagstates reachable by an object
2641 Hashtable hashtbtemp = safeexecution.get(cdtemp);
2643 TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
2644 fsts.addAll(hashtbtemp.keySet());
2645 for(Iterator fsit=fsts.iterator();fsit.hasNext();) {
2646 FlagState fs = (FlagState)fsit.next();
2649 //get the set of OptionalTaskDescriptors corresponding
2650 HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
2651 //iterate through the OptionalTaskDescriptors and
2652 //store the pointers to the optionals struct (see on
2653 //top) into an array
2655 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
2656 for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext();){
2657 OptionalTaskDescriptor mm = mos.next();
2659 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
2661 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2664 output.println("};\n");
2666 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
2669 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2670 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2671 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2675 //process tag information
2678 boolean first = true;
2679 Enumeration tag_enum = fs.getTags();
2680 output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2681 while(tag_enum.hasMoreElements()){
2683 TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
2687 output.println(", ");
2688 output.println("/*tagid*/"+state.getTagId(tagd));
2690 output.println("};");
2692 Set<TaskIndex> tiset=sa.getTaskIndex(fs);
2693 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2694 TaskIndex ti=itti.next();
2698 Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
2700 output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
2701 boolean needcomma=false;
2702 for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator();otdit.hasNext();) {
2703 OptionalTaskDescriptor otd=otdit.next();
2707 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2709 output.println("};");
2711 output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
2712 output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
2713 output.print(ti.getIndex()+", ");
2714 output.print(otdset.size()+", ");
2715 output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
2716 output.println("};");
2719 tiset=sa.getTaskIndex(fs);
2720 boolean needcomma=false;
2722 output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2723 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2724 TaskIndex ti=itti.next();
2725 if (ti.isRuntime()) {
2732 output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
2734 output.println("};\n");
2736 //Store the result in fsanalysiswrapper
2738 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
2739 output.println("/*flag*/"+flagid+",");
2740 output.println("/* number of tags*/"+tagcounter+",");
2741 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2742 output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
2743 output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2744 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
2745 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
2746 output.println("};\n");
2750 //Build the array of fsanalysiswrappers
2751 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
2752 boolean needcomma=false;
2753 for(int i = 0; i<fscounter; i++){
2754 if (needcomma) output.print(",");
2755 output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
2758 output.println("};");
2760 //Build the classanalysiswrapper referring to the previous array
2761 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
2762 output.println("/*type*/"+cdtemp.getId()+",");
2763 output.println("/*numotd*/"+numotd+",");
2764 output.println("otdarray"+cdtemp.getSafeSymbol()+",");
2765 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
2766 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
2767 processedcd.add(cdtemp);
2770 //build an array containing every classes for which code has been build
2771 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
2772 for(int i=0;i<state.numClasses();i++) {
2773 ClassDescriptor cn=cdarray[i];
2776 if (processedcd.contains(cn))
2777 output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
2779 output.print("NULL");
2781 output.println("};");
2783 output.println("#define MAXOTD "+maxotd);
2784 headers.println("#endif");
2787 public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
2788 Relation r=new Relation();
2789 for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator();otdit.hasNext();) {
2790 OptionalTaskDescriptor otd=otdit.next();
2791 TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
2795 LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
2796 for(Iterator it=r.keySet().iterator();it.hasNext();) {
2797 Set s=r.get(it.next());
2798 for(Iterator it2=s.iterator();it2.hasNext();) {
2799 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();
2807 protected void outputTransCode(PrintWriter output) {