2 import IR.Tree.FlagExpressionNode;
3 import IR.Tree.DNFFlag;
4 import IR.Tree.DNFFlagAtom;
5 import IR.Tree.TagExpressionList;
10 import Analysis.TaskStateAnalysis.FlagState;
11 import Analysis.TaskStateAnalysis.FlagComparator;
12 import Analysis.TaskStateAnalysis.OptionalTaskDescriptor;
13 import Analysis.TaskStateAnalysis.Predicate;
14 import Analysis.TaskStateAnalysis.SafetyAnalysis;
15 import Analysis.TaskStateAnalysis.TaskIndex;
16 import Analysis.Locality.LocalityAnalysis;
17 import Analysis.Locality.LocalityBinding;
18 import Analysis.Prefetch.*;
20 public class BuildCode {
23 Hashtable paramstable;
28 String localsprefix="___locals___";
29 String paramsprefix="___params___";
30 String oidstr="___nextobject___";
31 String nextobjstr="___nextobject___";
32 String localcopystr="___localcopy___";
33 public static boolean GENERATEPRECISEGC=false;
34 public static String PREFIX="";
35 public static String arraytype="ArrayObject";
36 public static int count = 0;
37 public static int flagcount = 0;
40 private int maxtaskparams=0;
41 private int maxcount=0;
42 ClassDescriptor[] cdarray;
43 TypeDescriptor[] arraytable;
44 LocalityAnalysis locality;
45 Hashtable<TempDescriptor, TempDescriptor> backuptable;
46 Hashtable<LocalityBinding, TempDescriptor> reverttable;
49 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa) {
50 this(st, temptovar, typeutil, null, sa);
53 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality) {
54 this(st, temptovar, typeutil, locality, null);
57 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality, SafetyAnalysis sa) {
60 this.temptovar=temptovar;
61 paramstable=new Hashtable();
62 tempstable=new Hashtable();
63 fieldorder=new Hashtable();
64 flagorder=new Hashtable();
65 this.typeutil=typeutil;
66 virtualcalls=new Virtual(state,locality);
68 this.locality=locality;
69 this.backuptable=new Hashtable<TempDescriptor, TempDescriptor>();
70 this.reverttable=new Hashtable<LocalityBinding, TempDescriptor>();
74 /** The buildCode method outputs C code for all the methods. The Flat
75 * versions of the methods must already be generated and stored in
76 * the State object. */
78 public void buildCode() {
79 /* Create output streams to write to */
80 PrintWriter outclassdefs=null;
81 PrintWriter outstructs=null;
82 PrintWriter outrepairstructs=null;
83 PrintWriter outmethodheader=null;
84 PrintWriter outmethod=null;
85 PrintWriter outvirtual=null;
86 PrintWriter outtask=null;
87 PrintWriter outtaskdefs=null;
88 PrintWriter outoptionalarrays=null;
89 PrintWriter optionalheaders=null;
92 outstructs=new PrintWriter(new FileOutputStream(PREFIX+"structdefs.h"), true);
93 outmethodheader=new PrintWriter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
94 outclassdefs=new PrintWriter(new FileOutputStream(PREFIX+"classdefs.h"), true);
95 outmethod=new PrintWriter(new FileOutputStream(PREFIX+"methods.c"), true);
96 outvirtual=new PrintWriter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
98 outtask=new PrintWriter(new FileOutputStream(PREFIX+"task.h"), true);
99 outtaskdefs=new PrintWriter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
101 outoptionalarrays=new PrintWriter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
102 optionalheaders=new PrintWriter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
105 if (state.structfile!=null) {
106 outrepairstructs=new PrintWriter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
108 } catch (Exception e) {
113 /* Build the virtual dispatch tables */
114 buildVirtualTables(outvirtual);
116 /* Output includes */
117 outmethodheader.println("#ifndef METHODHEADERS_H");
118 outmethodheader.println("#define METHODHEADERS_H");
119 outmethodheader.println("#include \"structdefs.h\"");
121 outmethodheader.println("#include \"dstm.h\"");
123 /* Output Structures */
124 outputStructs(outstructs);
126 // Output the C class declarations
127 // These could mutually reference each other
128 outputClassDeclarations(outclassdefs);
130 // Output function prototypes and structures for parameters
131 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
132 while(it.hasNext()) {
133 ClassDescriptor cn=(ClassDescriptor)it.next();
134 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader);
136 outclassdefs.close();
139 /* Map flags to integers */
140 /* The runtime keeps track of flags using these integers */
141 it=state.getClassSymbolTable().getDescriptorsIterator();
142 while(it.hasNext()) {
143 ClassDescriptor cn=(ClassDescriptor)it.next();
147 generateTaskStructs(outstructs, outmethodheader);
149 /* Outputs generic task structures if this is a task
151 outputTaskTypes(outtask);
154 /* Build the actual methods */
155 outputMethods(outmethod);
158 /* Output code for tasks */
159 outputTaskCode(outtaskdefs, outmethod);
161 /* Record maximum number of task parameters */
162 outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
163 } else if (state.main!=null) {
164 /* Generate main method */
165 outputMainMethod(outmethod);
168 /* Generate information for task with optional parameters */
169 if (state.TASK&&state.OPTIONAL){
170 generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
171 outoptionalarrays.close();
174 /* Output structure definitions for repair tool */
175 if (state.structfile!=null) {
176 buildRepairStructs(outrepairstructs);
177 outrepairstructs.close();
181 outmethodheader.println("#endif");
182 outmethodheader.close();
184 outstructs.println("#endif");
188 /* This code just generates the main C method for java programs.
189 * The main C method packs up the arguments into a string array
190 * and passes it to the java main method. */
192 private void outputMainMethod(PrintWriter outmethod) {
193 outmethod.println("int main(int argc, const char *argv[]) {");
194 outmethod.println(" int i;");
195 if (state.THREAD||state.DSM) {
196 outmethod.println("initializethreads();");
199 outmethod.println("if (dstmStartup(argv[1])) {");
200 if (GENERATEPRECISEGC) {
201 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-2);");
203 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-2);");
206 if (GENERATEPRECISEGC) {
207 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
209 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
213 outmethod.println(" for(i=2;i<argc;i++) {");
215 outmethod.println(" for(i=1;i<argc;i++) {");
216 outmethod.println(" int length=strlen(argv[i]);");
217 if (GENERATEPRECISEGC) {
218 outmethod.println(" struct ___String___ *newstring=NewString(NULL, argv[i], length);");
220 outmethod.println(" struct ___String___ *newstring=NewString(argv[i], length);");
223 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-2]=newstring;");
225 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
226 outmethod.println(" }");
229 MethodDescriptor md=typeutil.getMain();
230 ClassDescriptor cd=typeutil.getMainClass();
232 outmethod.println(" {");
233 if (GENERATEPRECISEGC) {
235 outmethod.print(" struct "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
237 outmethod.print(" struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
238 outmethod.println("1, NULL,"+"stringarray};");
240 outmethod.println(" "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
242 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
245 outmethod.println(" "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
247 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
249 outmethod.println(" }");
252 outmethod.println("}");
255 if (state.THREAD||state.DSM) {
256 outmethod.println("pthread_mutex_lock(&gclistlock);");
257 outmethod.println("threadcount--;");
258 outmethod.println("pthread_cond_signal(&gccond);");
259 outmethod.println("pthread_mutex_unlock(&gclistlock);");
261 outmethod.println("pthread_exit(NULL);");
265 outmethod.println("}");
268 /* This method outputs code for each task. */
270 private void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
271 /* Compile task based program */
272 outtaskdefs.println("#include \"task.h\"");
273 outtaskdefs.println("#include \"methodheaders.h\"");
274 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
275 while(taskit.hasNext()) {
276 TaskDescriptor td=(TaskDescriptor)taskit.next();
277 FlatMethod fm=state.getMethodFlat(td);
278 generateFlatMethod(fm, null, outmethod);
279 generateTaskDescriptor(outtaskdefs, fm, td);
282 //Output task descriptors
283 taskit=state.getTaskSymbolTable().getDescriptorsIterator();
284 outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
286 while(taskit.hasNext()) {
287 TaskDescriptor td=(TaskDescriptor)taskit.next();
291 outtaskdefs.println(",");
292 outtaskdefs.print("&task_"+td.getSafeSymbol());
294 outtaskdefs.println("};");
296 outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
299 /* This method outputs most of the methods.c file. This includes
300 * some standard includes and then an array with the sizes of
301 * objets and array that stores supertype and then the code for
302 * the Java methods.. */
304 private void outputMethods(PrintWriter outmethod) {
305 outmethod.println("#include \"methodheaders.h\"");
306 outmethod.println("#include \"virtualtable.h\"");
307 outmethod.println("#include <runtime.h>");
309 outmethod.println("#include \"localobjects.h\"");
311 if (state.THREAD||state.DSM)
312 outmethod.println("#include <thread.h>");
313 if (state.main!=null) {
314 outmethod.println("#include <string.h>");
316 if (state.CONSCHECK) {
317 outmethod.println("#include \"checkers.h\"");
319 //Store the sizes of classes & array elements
320 generateSizeArray(outmethod);
322 //Store table of supertypes
323 generateSuperTypeTable(outmethod);
325 //Store the layout of classes
326 generateLayoutStructs(outmethod);
328 /* Generate code for methods */
330 for(Iterator<LocalityBinding> lbit=locality.getLocalityBindings().iterator();lbit.hasNext();) {
331 LocalityBinding lb=lbit.next();
332 MethodDescriptor md=lb.getMethod();
333 FlatMethod fm=state.getMethodFlat(md);
334 if (!md.getModifiers().isNative()) {
335 generateFlatMethod(fm, lb, outmethod);
339 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
340 while(classit.hasNext()) {
341 ClassDescriptor cn=(ClassDescriptor)classit.next();
342 Iterator methodit=cn.getMethods();
343 while(methodit.hasNext()) {
344 /* Classify parameters */
345 MethodDescriptor md=(MethodDescriptor)methodit.next();
346 FlatMethod fm=state.getMethodFlat(md);
347 if (!md.getModifiers().isNative()) {
348 generateFlatMethod(fm, null, outmethod);
355 private void outputStructs(PrintWriter outstructs) {
356 outstructs.println("#ifndef STRUCTDEFS_H");
357 outstructs.println("#define STRUCTDEFS_H");
358 outstructs.println("#include \"classdefs.h\"");
360 /* Output #defines that the runtime uses to determine type
361 * numbers for various objects it needs */
362 outstructs.println("#define MAXCOUNT "+maxcount);
364 LocalityBinding lb=new LocalityBinding(typeutil.getRun(), false);
365 lb.setGlobalThis(LocalityAnalysis.GLOBAL);
366 outstructs.println("#define RUNMETHOD "+virtualcalls.getLocalityNumber(lb));
369 outstructs.println("#define STRINGARRAYTYPE "+
370 (state.getArrayNumber(
371 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
373 outstructs.println("#define OBJECTARRAYTYPE "+
374 (state.getArrayNumber(
375 (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
378 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
379 outstructs.println("#define CHARARRAYTYPE "+
380 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
382 outstructs.println("#define BYTEARRAYTYPE "+
383 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
385 outstructs.println("#define BYTEARRAYARRAYTYPE "+
386 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
388 outstructs.println("#define NUMCLASSES "+state.numClasses());
390 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
391 outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
392 outstructs.println("#define TAGARRAYTYPE "+
393 (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
397 private void outputClassDeclarations(PrintWriter outclassdefs) {
398 if (state.THREAD||state.DSM)
399 outclassdefs.println("#include <pthread.h>");
401 outclassdefs.println("#include \"optionalstruct.h\"");
402 outclassdefs.println("struct "+arraytype+";");
403 /* Start by declaring all structs */
404 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
405 while(it.hasNext()) {
406 ClassDescriptor cn=(ClassDescriptor)it.next();
407 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
409 outclassdefs.println("");
410 //Print out definition for array type
411 outclassdefs.println("struct "+arraytype+" {");
412 outclassdefs.println(" int type;");
414 outclassdefs.println(" pthread_t tid;");
415 outclassdefs.println(" void * lockentry;");
416 outclassdefs.println(" int lockcount;");
419 outclassdefs.println(" int flag;");
420 outclassdefs.println(" void * flagptr;");
422 outclassdefs.println(" int numfses;");
423 outclassdefs.println(" int * fses;");
426 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs);
428 outclassdefs.println(" int ___length___;");
429 outclassdefs.println("};\n");
430 outclassdefs.println("extern int classsize[];");
431 outclassdefs.println("extern int hasflags[];");
432 outclassdefs.println("extern unsigned int * pointerarray[];");
433 outclassdefs.println("extern int supertypes[];");
436 /** Prints out definitions for generic task structures */
438 private void outputTaskTypes(PrintWriter outtask) {
439 outtask.println("#ifndef _TASK_H");
440 outtask.println("#define _TASK_H");
441 outtask.println("struct parameterdescriptor {");
442 outtask.println("int type;");
443 outtask.println("int numberterms;");
444 outtask.println("int *intarray;");
445 outtask.println("void * queue;");
446 outtask.println("int numbertags;");
447 outtask.println("int *tagarray;");
448 outtask.println("};");
450 outtask.println("struct taskdescriptor {");
451 outtask.println("void * taskptr;");
452 outtask.println("int numParameters;");
453 outtask.println("int numTotal;");
454 outtask.println("struct parameterdescriptor **descriptorarray;");
455 outtask.println("char * name;");
456 outtask.println("};");
457 outtask.println("extern struct taskdescriptor * taskarray[];");
458 outtask.println("extern numtasks;");
459 outtask.println("#endif");
463 private void buildRepairStructs(PrintWriter outrepairstructs) {
464 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
465 while(classit.hasNext()) {
466 ClassDescriptor cn=(ClassDescriptor)classit.next();
467 outrepairstructs.println("structure "+cn.getSymbol()+" {");
468 outrepairstructs.println(" int __type__;");
470 outrepairstructs.println(" int __flag__;");
471 outrepairstructs.println(" int __flagptr__;");
473 printRepairStruct(cn, outrepairstructs);
474 outrepairstructs.println("}\n");
477 for(int i=0;i<state.numArrays();i++) {
478 TypeDescriptor tdarray=arraytable[i];
479 TypeDescriptor tdelement=tdarray.dereference();
480 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
481 outrepairstructs.println(" int __type__;");
482 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
483 outrepairstructs.println(" int length;");
485 // Need to add support to repair tool for this
486 if (tdelement.isClass()||tdelement.isArray())
487 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" * elem[this.length];");
489 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" elem[this.length];");
491 outrepairstructs.println("}\n");
495 private void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
496 ClassDescriptor sp=cn.getSuperDesc();
498 printRepairStruct(sp, output);
500 Vector fields=(Vector)fieldorder.get(cn);
502 for(int i=0;i<fields.size();i++) {
503 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
504 if (fd.getType().isArray()) {
505 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
506 } else if (fd.getType().isClass())
507 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
508 else if (fd.getType().isFloat())
509 output.println(" int "+fd.getSymbol()+"; /* really float */");
511 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
515 /** This method outputs TaskDescriptor information */
516 void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
517 for (int i=0;i<task.numParameters();i++) {
518 VarDescriptor param_var=task.getParameter(i);
519 TypeDescriptor param_type=task.getParamType(i);
520 FlagExpressionNode param_flag=task.getFlag(param_var);
521 TagExpressionList param_tag=task.getTag(param_var);
524 if (param_flag==null) {
525 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
526 output.println("0x0, 0x0 };");
529 DNFFlag dflag=param_flag.getDNF();
530 dnfterms=dflag.size();
532 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
533 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
534 for(int j=0;j<dflag.size();j++) {
537 Vector term=dflag.get(j);
540 for(int k=0;k<term.size();k++) {
541 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
542 FlagDescriptor fd=dfa.getFlag();
543 boolean negated=dfa.getNegated();
544 int flagid=1<<((Integer)flags.get(fd)).intValue();
549 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
551 output.println("};");
554 output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
555 //BUG...added next line to fix, test with any task program
557 for(int j=0;j<param_tag.numTags();j++) {
560 /* for each tag we need */
561 /* which slot it is */
562 /* what type it is */
563 TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
564 TempDescriptor tmp=param_tag.getTemp(j);
565 int slot=fm.getTagInt(tmp);
566 output.println(slot+", "+state.getTagId(tvd.getTag()));
568 output.println("};");
570 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
571 output.println("/* type */"+param_type.getClassDesc().getId()+",");
572 output.println("/* number of DNF terms */"+dnfterms+",");
573 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
574 output.println("0,");
575 //BUG, added next line to fix and else statement...test
576 //with any task program
578 output.println("/* number of tags */"+param_tag.numTags()+",");
580 output.println("/* number of tags */ 0,");
581 output.println("parametertag_"+i+"_"+task.getSafeSymbol());
582 output.println("};");
586 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
587 for (int i=0;i<task.numParameters();i++) {
590 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
592 output.println("};");
594 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
595 output.println("&"+task.getSafeSymbol()+",");
596 output.println("/* number of parameters */" +task.numParameters() + ",");
597 int numtotal=task.numParameters()+fm.numTags();
598 output.println("/* number total parameters */" +numtotal + ",");
599 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
600 output.println("\""+task.getSymbol()+"\"");
601 output.println("};");
605 /** The buildVirtualTables method outputs the virtual dispatch
606 * tables for methods. */
608 private void buildVirtualTables(PrintWriter outvirtual) {
609 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
610 while(classit.hasNext()) {
611 ClassDescriptor cd=(ClassDescriptor)classit.next();
612 if (virtualcalls.getMethodCount(cd)>maxcount)
613 maxcount=virtualcalls.getMethodCount(cd);
615 MethodDescriptor[][] virtualtable=null;
616 LocalityBinding[][] lbvirtualtable=null;
618 lbvirtualtable=new LocalityBinding[state.numClasses()+state.numArrays()][maxcount];
620 virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
622 /* Fill in virtual table */
623 classit=state.getClassSymbolTable().getDescriptorsIterator();
624 while(classit.hasNext()) {
625 ClassDescriptor cd=(ClassDescriptor)classit.next();
627 fillinRow(cd, lbvirtualtable, cd.getId());
629 fillinRow(cd, virtualtable, cd.getId());
632 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
633 Iterator arrayit=state.getArrayIterator();
634 while(arrayit.hasNext()) {
635 TypeDescriptor td=(TypeDescriptor)arrayit.next();
636 int id=state.getArrayNumber(td);
638 fillinRow(objectcd, lbvirtualtable, id+state.numClasses());
640 fillinRow(objectcd, virtualtable, id+state.numClasses());
643 outvirtual.print("void * virtualtable[]={");
644 boolean needcomma=false;
645 for(int i=0;i<state.numClasses()+state.numArrays();i++) {
646 for(int j=0;j<maxcount;j++) {
648 outvirtual.print(", ");
649 if (state.DSM&&lbvirtualtable[i][j]!=null) {
650 LocalityBinding lb=lbvirtualtable[i][j];
651 MethodDescriptor md=lb.getMethod();
652 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
653 } else if (!state.DSM&&virtualtable[i][j]!=null) {
654 MethodDescriptor md=virtualtable[i][j];
655 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
657 outvirtual.print("0");
661 outvirtual.println("");
663 outvirtual.println("};");
667 private void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
668 /* Get inherited methods */
669 if (cd.getSuperDesc()!=null)
670 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
671 /* Override them with our methods */
672 for(Iterator it=cd.getMethods();it.hasNext();) {
673 MethodDescriptor md=(MethodDescriptor)it.next();
674 if (md.isStatic()||md.getReturnType()==null)
676 int methodnum=virtualcalls.getMethodNumber(md);
677 virtualtable[rownum][methodnum]=md;
681 private void fillinRow(ClassDescriptor cd, LocalityBinding[][] virtualtable, int rownum) {
682 /* Get inherited methods */
683 if (cd.getSuperDesc()!=null)
684 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
685 /* Override them with our methods */
686 if (locality.getClassBindings(cd)!=null)
687 for(Iterator<LocalityBinding> lbit=locality.getClassBindings(cd).iterator();lbit.hasNext();) {
688 LocalityBinding lb=lbit.next();
689 MethodDescriptor md=lb.getMethod();
690 //Is the method static or a constructor
691 if (md.isStatic()||md.getReturnType()==null)
693 int methodnum=virtualcalls.getLocalityNumber(lb);
694 virtualtable[rownum][methodnum]=lb;
699 /** Generate array that contains the sizes of class objects. The
700 * object allocation functions in the runtime use this
703 private void generateSizeArray(PrintWriter outclassdefs) {
704 outclassdefs.print("int classsize[]={");
705 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
706 cdarray=new ClassDescriptor[state.numClasses()];
707 while(it.hasNext()) {
708 ClassDescriptor cd=(ClassDescriptor)it.next();
709 cdarray[cd.getId()]=cd;
711 boolean needcomma=false;
712 for(int i=0;i<state.numClasses();i++) {
714 outclassdefs.print(", ");
715 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
719 arraytable=new TypeDescriptor[state.numArrays()];
721 Iterator arrayit=state.getArrayIterator();
722 while(arrayit.hasNext()) {
723 TypeDescriptor td=(TypeDescriptor)arrayit.next();
724 int id=state.getArrayNumber(td);
728 for(int i=0;i<state.numArrays();i++) {
730 outclassdefs.print(", ");
731 TypeDescriptor tdelement=arraytable[i].dereference();
732 if (tdelement.isArray()||tdelement.isClass())
733 outclassdefs.print("sizeof(void *)");
735 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
739 outclassdefs.println("};");
742 /** Constructs params and temp objects for each method or task.
743 * These objects tell the compiler which temps need to be
746 private void generateTempStructs(FlatMethod fm, LocalityBinding lb) {
747 MethodDescriptor md=fm.getMethod();
748 TaskDescriptor task=fm.getTask();
749 Set<TempDescriptor> saveset=lb!=null?locality.getTempSet(lb):null;
750 ParamsObject objectparams=md!=null?new ParamsObject(md,tag++):new ParamsObject(task, tag++);
753 paramstable.put(lb, objectparams);
755 paramstable.put(md, objectparams);
757 paramstable.put(task, objectparams);
759 for(int i=0;i<fm.numParameters();i++) {
760 TempDescriptor temp=fm.getParameter(i);
761 TypeDescriptor type=temp.getType();
762 if (type.isPtr()&&GENERATEPRECISEGC)
763 objectparams.addPtr(temp);
765 objectparams.addPrim(temp);
766 if(lb!=null&&saveset.contains(temp)) {
767 backuptable.put(temp, temp.createNew());
771 for(int i=0;i<fm.numTags();i++) {
772 TempDescriptor temp=fm.getTag(i);
773 if (GENERATEPRECISEGC)
774 objectparams.addPtr(temp);
776 objectparams.addPrim(temp);
779 TempObject objecttemps=md!=null?new TempObject(objectparams,md,tag++):new TempObject(objectparams, task, tag++);
781 tempstable.put(lb, objecttemps);
783 tempstable.put(md, objecttemps);
785 tempstable.put(task, objecttemps);
787 for(Iterator nodeit=fm.getNodeSet().iterator();nodeit.hasNext();) {
788 FlatNode fn=(FlatNode)nodeit.next();
789 TempDescriptor[] writes=fn.writesTemps();
790 for(int i=0;i<writes.length;i++) {
791 TempDescriptor temp=writes[i];
792 TypeDescriptor type=temp.getType();
793 if (type.isPtr()&&GENERATEPRECISEGC)
794 objecttemps.addPtr(temp);
796 objecttemps.addPrim(temp);
797 if(lb!=null&&saveset.contains(temp)&&
798 !backuptable.containsKey(temp))
799 backuptable.put(temp, temp.createNew());
803 /* Create backup temps */
805 for(Iterator<TempDescriptor> tmpit=backuptable.values().iterator();tmpit.hasNext();) {
806 TempDescriptor tmp=tmpit.next();
807 TypeDescriptor type=tmp.getType();
808 if (type.isPtr()&&GENERATEPRECISEGC)
809 objecttemps.addPtr(tmp);
811 objecttemps.addPrim(tmp);
813 /* Create temp to hold revert table */
814 if (lb.getHasAtomic()||lb.isAtomic()) {
815 TempDescriptor reverttmp=new TempDescriptor("revertlist", typeutil.getClass(TypeUtil.ObjectClass));
816 if (GENERATEPRECISEGC)
817 objecttemps.addPtr(reverttmp);
819 objecttemps.addPrim(reverttmp);
820 reverttable.put(lb, reverttmp);
825 /** This method outputs the following information about classes
827 * (1) For classes, what are the locations of pointers.
828 * (2) For arrays, does the array contain pointers or primitives.
829 * (3) For classes, does the class contain flags.
832 private void generateLayoutStructs(PrintWriter output) {
833 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
834 while(it.hasNext()) {
835 ClassDescriptor cn=(ClassDescriptor)it.next();
836 output.println("unsigned int "+cn.getSafeSymbol()+"_pointers[]={");
837 Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
839 while(allit.hasNext()) {
840 FieldDescriptor fd=(FieldDescriptor)allit.next();
841 TypeDescriptor type=fd.getType();
842 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
848 allit=cn.getFieldTable().getAllDescriptorsIterator();
849 while(allit.hasNext()) {
850 FieldDescriptor fd=(FieldDescriptor)allit.next();
851 TypeDescriptor type=fd.getType();
852 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
856 output.print("((unsigned int)&(((struct "+cn.getSafeSymbol() +" *)0)->"+fd.getSafeSymbol()+"))");
859 output.println("};");
861 output.println("unsigned int * pointerarray[]={");
862 boolean needcomma=false;
863 for(int i=0;i<state.numClasses();i++) {
864 ClassDescriptor cn=cdarray[i];
868 output.print(cn.getSafeSymbol()+"_pointers");
871 for(int i=0;i<state.numArrays();i++) {
873 output.println(", ");
874 TypeDescriptor tdelement=arraytable[i].dereference();
875 if (tdelement.isArray()||tdelement.isClass())
876 output.print("((unsigned int *)1)");
882 output.println("};");
884 output.println("int hasflags[]={");
885 for(int i=0;i<state.numClasses();i++) {
886 ClassDescriptor cn=cdarray[i];
888 output.println(", ");
895 output.println("};");
898 /** Print out table to give us supertypes */
899 private void generateSuperTypeTable(PrintWriter output) {
900 output.println("int supertypes[]={");
901 boolean needcomma=false;
902 for(int i=0;i<state.numClasses();i++) {
903 ClassDescriptor cn=cdarray[i];
907 if (cn.getSuperDesc()!=null) {
908 ClassDescriptor cdsuper=cn.getSuperDesc();
909 output.print(cdsuper.getId());
913 output.println("};");
916 /** Force consistent field ordering between inherited classes. */
918 private void printClassStruct(ClassDescriptor cn, PrintWriter classdefout) {
920 ClassDescriptor sp=cn.getSuperDesc();
922 printClassStruct(sp, classdefout);
924 if (!fieldorder.containsKey(cn)) {
925 Vector fields=new Vector();
926 fieldorder.put(cn,fields);
928 fields.add(cn.getFieldTable().get("cachedCode"));
930 Iterator fieldit=cn.getFields();
931 while(fieldit.hasNext()) {
932 FieldDescriptor fd=(FieldDescriptor)fieldit.next();
933 if ((sp==null||!sp.getFieldTable().contains(fd.getSymbol()))&&
934 (!fd.getSymbol().equals("cachedCode")))
938 Vector fields=(Vector)fieldorder.get(cn);
940 for(int i=0;i<fields.size();i++) {
941 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
942 if (fd.getType().isClass()||fd.getType().isArray())
943 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
945 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
950 /* Map flags to integers consistently between inherited
953 private void mapFlags(ClassDescriptor cn) {
954 ClassDescriptor sp=cn.getSuperDesc();
958 if (!flagorder.containsKey(cn)) {
959 Hashtable flags=new Hashtable();
960 flagorder.put(cn,flags);
962 Hashtable superflags=(Hashtable)flagorder.get(sp);
963 Iterator superflagit=superflags.keySet().iterator();
964 while(superflagit.hasNext()) {
965 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
966 Integer number=(Integer)superflags.get(fd);
967 flags.put(fd, number);
968 if ((number.intValue()+1)>max)
969 max=number.intValue()+1;
973 Iterator flagit=cn.getFlags();
974 while(flagit.hasNext()) {
975 FlagDescriptor fd=(FlagDescriptor)flagit.next();
976 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
977 flags.put(fd, new Integer(max++));
983 /** This function outputs (1) structures that parameters are
984 * passed in (when PRECISE GC is enabled) and (2) function
985 * prototypes for the methods */
987 private void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
988 /* Output class structure */
989 classdefout.println("struct "+cn.getSafeSymbol()+" {");
990 classdefout.println(" int type;");
992 classdefout.println(" pthread_t tid;");
993 classdefout.println(" void * lockentry;");
994 classdefout.println(" int lockcount;");
998 classdefout.println(" int flag;");
999 classdefout.println(" void * flagptr;");
1000 if (state.OPTIONAL){
1001 classdefout.println(" int numfses;");
1002 classdefout.println(" int * fses;");
1005 printClassStruct(cn, classdefout);
1006 classdefout.println("};\n");
1009 /* Cycle through LocalityBindings */
1010 HashSet<MethodDescriptor> nativemethods=new HashSet<MethodDescriptor>();
1011 Set<LocalityBinding> lbset=locality.getClassBindings(cn);
1013 for(Iterator<LocalityBinding> lbit=lbset.iterator();lbit.hasNext();) {
1014 LocalityBinding lb=lbit.next();
1015 MethodDescriptor md=lb.getMethod();
1016 if (md.getModifiers().isNative()) {
1017 //make sure we only print a native method once
1018 if (nativemethods.contains(md)) {
1019 FlatMethod fm=state.getMethodFlat(md);
1020 generateTempStructs(fm, lb);
1023 nativemethods.add(md);
1025 generateMethod(cn, md, lb, headersout, output);
1028 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1029 MethodDescriptor md=(MethodDescriptor)methodit.next();
1030 if (md.getModifiers().isNative()&&!nativemethods.contains(md)) {
1031 //Need to build param structure for library code
1032 FlatMethod fm=state.getMethodFlat(md);
1033 generateTempStructs(fm, null);
1034 generateMethodParam(cn, md, null, output);
1039 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1040 MethodDescriptor md=(MethodDescriptor)methodit.next();
1041 generateMethod(cn, md, null, headersout, output);
1045 private void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter output) {
1046 /* Output parameter structure */
1047 if (GENERATEPRECISEGC) {
1048 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1049 if (state.DSM&&lb!=null)
1050 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1052 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1053 output.println(" int size;");
1054 output.println(" void * next;");
1055 for(int i=0;i<objectparams.numPointers();i++) {
1056 TempDescriptor temp=objectparams.getPointer(i);
1057 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1059 output.println("};\n");
1064 private void generateMethod(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter headersout, PrintWriter output) {
1065 FlatMethod fm=state.getMethodFlat(md);
1066 generateTempStructs(fm, lb);
1068 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1069 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md);
1071 generateMethodParam(cn, md, lb, output);
1073 /* Output temp structure */
1074 if (GENERATEPRECISEGC) {
1076 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1078 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1079 output.println(" int size;");
1080 output.println(" void * next;");
1081 for(int i=0;i<objecttemps.numPointers();i++) {
1082 TempDescriptor temp=objecttemps.getPointer(i);
1083 if (temp.getType().isNull())
1084 output.println(" void * "+temp.getSafeSymbol()+";");
1086 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1088 output.println("};\n");
1091 /********* Output method declaration ***********/
1093 /* First the return type */
1094 if (md.getReturnType()!=null) {
1095 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1096 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1098 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1100 //catch the constructor case
1101 headersout.print("void ");
1103 /* Next the method name */
1105 headersout.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1107 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1109 boolean printcomma=false;
1110 if (GENERATEPRECISEGC) {
1112 headersout.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1114 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1118 if (state.DSM&&lb.isAtomic()) {
1120 headersout.print(", ");
1121 headersout.print("transrecord_t * trans");
1125 /* Output parameter list*/
1126 for(int i=0;i<objectparams.numPrimitives();i++) {
1127 TempDescriptor temp=objectparams.getPrimitive(i);
1129 headersout.print(", ");
1131 if (temp.getType().isClass()||temp.getType().isArray())
1132 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1134 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1136 headersout.println(");\n");
1140 /** This function outputs (1) structures that parameters are
1141 * passed in (when PRECISE GC is enabled) and (2) function
1142 * prototypes for the tasks */
1144 private void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1145 /* Cycle through tasks */
1146 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1148 while(taskit.hasNext()) {
1149 /* Classify parameters */
1150 TaskDescriptor task=(TaskDescriptor)taskit.next();
1151 FlatMethod fm=state.getMethodFlat(task);
1152 generateTempStructs(fm, null);
1154 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1155 TempObject objecttemps=(TempObject) tempstable.get(task);
1157 /* Output parameter structure */
1158 if (GENERATEPRECISEGC) {
1159 output.println("struct "+task.getSafeSymbol()+"_params {");
1161 output.println(" int size;");
1162 output.println(" void * next;");
1163 for(int i=0;i<objectparams.numPointers();i++) {
1164 TempDescriptor temp=objectparams.getPointer(i);
1165 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1168 output.println("};\n");
1169 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1170 maxtaskparams=objectparams.numPointers()+fm.numTags();
1174 /* Output temp structure */
1175 if (GENERATEPRECISEGC) {
1176 output.println("struct "+task.getSafeSymbol()+"_locals {");
1177 output.println(" int size;");
1178 output.println(" void * next;");
1179 for(int i=0;i<objecttemps.numPointers();i++) {
1180 TempDescriptor temp=objecttemps.getPointer(i);
1181 if (temp.getType().isNull())
1182 output.println(" void * "+temp.getSafeSymbol()+";");
1183 else if(temp.getType().isTag())
1184 output.println(" struct "+
1185 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1187 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1189 output.println("};\n");
1192 /* Output task declaration */
1193 headersout.print("void " + task.getSafeSymbol()+"(");
1195 boolean printcomma=false;
1196 if (GENERATEPRECISEGC) {
1197 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1199 headersout.print("void * parameterarray[]");
1200 headersout.println(");\n");
1204 /***** Generate code for FlatMethod fm. *****/
1206 private void generateFlatMethod(FlatMethod fm, LocalityBinding lb, PrintWriter output) {
1207 if (State.PRINTFLAT)
1208 System.out.println(fm.printMethod());
1209 MethodDescriptor md=fm.getMethod();
1211 TaskDescriptor task=fm.getTask();
1213 ClassDescriptor cn=md!=null?md.getClassDesc():null;
1215 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:md!=null?md:task);
1216 generateHeader(fm, lb, md!=null?md:task,output);
1217 TempObject objecttemp=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1218 if (state.DSM&&lb.getHasAtomic()) {
1219 output.println("transrecord_t * trans;");
1222 if (GENERATEPRECISEGC) {
1223 if (md!=null&&state.DSM)
1224 output.print(" struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1225 else if (md!=null&&!state.DSM)
1226 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1228 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
1230 output.print(objecttemp.numPointers()+",");
1231 output.print(paramsprefix);
1232 for(int j=0;j<objecttemp.numPointers();j++)
1233 output.print(", NULL");
1234 output.println("};");
1237 for(int i=0;i<objecttemp.numPrimitives();i++) {
1238 TempDescriptor td=objecttemp.getPrimitive(i);
1239 TypeDescriptor type=td.getType();
1241 output.println(" void * "+td.getSafeSymbol()+";");
1242 else if (type.isClass()||type.isArray())
1243 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1245 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1248 /* Assign labels to FlatNode's if necessary.*/
1250 Hashtable<FlatNode, Integer> nodetolabel=assignLabels(fm);
1252 /* Check to see if we need to do a GC if this is a
1253 * multi-threaded program...*/
1255 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1256 if (state.DSM&&lb.isAtomic())
1257 output.println("checkcollect2(&"+localsprefix+",trans);");
1259 output.println("checkcollect(&"+localsprefix+");");
1262 /* Do the actual code generation */
1263 FlatNode current_node=null;
1264 HashSet tovisit=new HashSet();
1265 HashSet visited=new HashSet();
1266 tovisit.add(fm.getNext(0));
1267 while(current_node!=null||!tovisit.isEmpty()) {
1268 if (current_node==null) {
1269 current_node=(FlatNode)tovisit.iterator().next();
1270 tovisit.remove(current_node);
1272 visited.add(current_node);
1273 if (nodetolabel.containsKey(current_node))
1274 output.println("L"+nodetolabel.get(current_node)+":");
1275 if (state.INSTRUCTIONFAILURE) {
1276 if (state.THREAD||state.DSM) {
1277 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
1280 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
1282 if (current_node.numNext()==0) {
1284 generateFlatNode(fm, lb, current_node, output);
1285 if (current_node.kind()!=FKind.FlatReturnNode) {
1286 output.println(" return;");
1289 } else if(current_node.numNext()==1) {
1291 generateFlatNode(fm, lb, current_node, output);
1292 FlatNode nextnode=current_node.getNext(0);
1293 if (visited.contains(nextnode)) {
1294 output.println("goto L"+nodetolabel.get(nextnode)+";");
1297 current_node=nextnode;
1298 } else if (current_node.numNext()==2) {
1301 generateFlatCondBranch(fm, lb, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
1302 if (!visited.contains(current_node.getNext(1)))
1303 tovisit.add(current_node.getNext(1));
1304 if (visited.contains(current_node.getNext(0))) {
1305 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
1308 current_node=current_node.getNext(0);
1309 } else throw new Error();
1311 output.println("}\n\n");
1314 /** This method assigns labels to FlatNodes */
1316 private Hashtable<FlatNode, Integer> assignLabels(FlatMethod fm) {
1317 HashSet tovisit=new HashSet();
1318 HashSet visited=new HashSet();
1320 Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
1321 tovisit.add(fm.getNext(0));
1323 /*Assign labels first. A node needs a label if the previous
1324 * node has two exits or this node is a join point. */
1326 while(!tovisit.isEmpty()) {
1327 FlatNode fn=(FlatNode)tovisit.iterator().next();
1330 for(int i=0;i<fn.numNext();i++) {
1331 FlatNode nn=fn.getNext(i);
1333 //1) Edge >1 of node
1334 nodetolabel.put(nn,new Integer(labelindex++));
1336 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1340 nodetolabel.put(nn,new Integer(labelindex++));
1348 /** Generate text string that corresponds to the TempDescriptor td. */
1349 private String generateTemp(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1350 MethodDescriptor md=fm.getMethod();
1351 TaskDescriptor task=fm.getTask();
1352 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1354 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1355 return td.getSafeSymbol();
1358 if (objecttemps.isLocalPtr(td)) {
1359 return localsprefix+"."+td.getSafeSymbol();
1362 if (objecttemps.isParamPtr(td)) {
1363 return paramsprefix+"->"+td.getSafeSymbol();
1368 private void generateFlatNode(FlatMethod fm, LocalityBinding lb, FlatNode fn, PrintWriter output) {
1370 case FKind.FlatAtomicEnterNode:
1371 generateFlatAtomicEnterNode(fm, lb, (FlatAtomicEnterNode) fn, output);
1373 case FKind.FlatAtomicExitNode:
1374 generateFlatAtomicExitNode(fm, lb, (FlatAtomicExitNode) fn, output);
1376 case FKind.FlatGlobalConvNode:
1377 generateFlatGlobalConvNode(fm, lb, (FlatGlobalConvNode) fn, output);
1379 case FKind.FlatTagDeclaration:
1380 generateFlatTagDeclaration(fm, lb, (FlatTagDeclaration) fn,output);
1382 case FKind.FlatCall:
1383 generateFlatCall(fm, lb, (FlatCall) fn,output);
1385 case FKind.FlatFieldNode:
1386 generateFlatFieldNode(fm, lb, (FlatFieldNode) fn,output);
1388 case FKind.FlatElementNode:
1389 generateFlatElementNode(fm, lb, (FlatElementNode) fn,output);
1391 case FKind.FlatSetElementNode:
1392 generateFlatSetElementNode(fm, lb, (FlatSetElementNode) fn,output);
1394 case FKind.FlatSetFieldNode:
1395 generateFlatSetFieldNode(fm, lb, (FlatSetFieldNode) fn,output);
1398 generateFlatNew(fm, lb, (FlatNew) fn,output);
1400 case FKind.FlatOpNode:
1401 generateFlatOpNode(fm, lb, (FlatOpNode) fn,output);
1403 case FKind.FlatCastNode:
1404 generateFlatCastNode(fm, lb, (FlatCastNode) fn,output);
1406 case FKind.FlatLiteralNode:
1407 generateFlatLiteralNode(fm, lb, (FlatLiteralNode) fn,output);
1409 case FKind.FlatReturnNode:
1410 generateFlatReturnNode(fm, lb, (FlatReturnNode) fn,output);
1413 output.println("/* nop */");
1415 case FKind.FlatBackEdge:
1416 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1417 if(state.DSM&&locality.getAtomic(lb).get(fn).intValue()>0) {
1418 output.println("checkcollect2(&"+localsprefix+",trans);");
1420 output.println("checkcollect(&"+localsprefix+");");
1422 output.println("/* nop */");
1424 case FKind.FlatCheckNode:
1425 generateFlatCheckNode(fm, lb, (FlatCheckNode) fn, output);
1427 case FKind.FlatFlagActionNode:
1428 generateFlatFlagActionNode(fm, lb, (FlatFlagActionNode) fn, output);
1430 case FKind.FlatPrefetchNode:
1431 if (!state.excprefetch.contains(fm.getMethod().getClassMethodName()))
1432 generateFlatPrefetchNode(fm,lb, (FlatPrefetchNode) fn, output);
1438 public void generateFlatPrefetchNode(FlatMethod fm, LocalityBinding lb, FlatPrefetchNode fpn, PrintWriter output) {
1439 short[] arrayfields = null;
1440 Vector fieldoffset = new Vector();
1441 Vector endoffset = new Vector();
1442 Vector oids = new Vector();
1443 short offsetcount = 0;
1444 int tuplecount = 0; //Keeps track of number of prefetch tuples that need to be generated
1447 if (state.PREFETCH) {
1448 output.println("/* prefetch */");
1449 output.println("; /* empty statement to avoid compiler error */");
1450 Iterator it = fpn.hspp.iterator();
1451 String oidlist = new String();
1452 while(it.hasNext()) {
1453 PrefetchPair pp = (PrefetchPair) it.next();
1454 Integer statusbase = locality.getNodePreTempInfo(lb,fpn).get(pp.base);
1455 /* Find prefetches that can generate oid */
1456 if(statusbase == LocalityAnalysis.GLOBAL) {
1457 if(locality.getAtomic(lb).get(fpn).intValue()>0) { /* Inside transaction */
1458 generateInsideTransCode(fm,lb,output, pp,oids,fieldoffset,endoffset,tuplecount);
1459 } else {/* Outside Transaction */
1460 generateOutsideTransCode(fm,lb,pp,oids,fieldoffset,endoffset,tuplecount);
1463 } else if(statusbase == LocalityAnalysis.LOCAL) {
1464 generateLocalTransCode(fm,lb,pp,oids,fieldoffset,endoffset,tuplecount);
1470 /*Create C code for numtuples */
1471 output.println(" int numtuples_" + count + " = " + tuplecount + ";");
1473 /*Create C code for oid array */
1474 output.print(" unsigned int oidarray_" + count + "[] = {");
1475 boolean needcomma=false;
1476 it = oids.iterator();
1477 while(it.hasNext()) {
1480 output.print(it.next());
1483 output.println("};");
1485 /*Create C code for endoffset values */
1486 output.print(" unsigned short endoffsetarry_" + count +"[] = {");
1488 it = endoffset.iterator();
1489 while(it.hasNext()) {
1492 output.print(it.next());
1495 output.println("};");
1497 /*Create C code for Field Offset Values */
1498 output.print(" short fieldarry_" + count +"[] = {");
1500 it = fieldoffset.iterator();
1501 while(it.hasNext()) {
1504 output.print(it.next());
1507 output.println("};");
1508 /* make the prefetch call to Runtime */
1509 if(tuplecount > 0) {
1510 output.println(" prefetch((int) numtuples_"+count+ ", oidarray_"+count+ ", endoffsetarry_"+
1511 count+", fieldarry_"+count+");");
1516 /* Free heap memory */
1522 public void generateInsideTransCode(FlatMethod fm, LocalityBinding lb,PrintWriter output,PrefetchPair pp,Vector oids, Vector fieldoffset,Vector endoffset, int tuplecount){
1524 short offsetcount = 0;
1525 String test = new String();
1527 Object newdesc = pp.desc.get(0);
1528 if(newdesc instanceof FieldDescriptor) {
1529 FieldDescriptor fd = (FieldDescriptor)newdesc;
1530 String oid = new String("(unsigned int) (" +
1531 generateTemp(fm, pp.base, lb) + " != NULL ? " +
1532 generateTemp(fm, pp.base, lb) + "->" + ((FieldDescriptor)fd).getSafeSymbol() +
1536 IndexDescriptor id = (IndexDescriptor)newdesc;
1537 String tstlbl = new String();
1538 for(i=0; i<id.tddesc.size(); i++) {
1539 tstlbl += generateTemp(fm, id.getTempDescAt(i), lb) + "+";
1541 tstlbl += id.offset.toString();
1543 TypeDescriptor elementtype = pp.base.getType().dereference();
1545 if (elementtype.isArray()||elementtype.isClass())
1548 type=elementtype.getSafeSymbol()+" ";
1550 String oid = new String("(unsigned int) (" + generateTemp(fm, pp.base, lb) + " != NULL ? " +
1551 "((" + tstlbl+"< 0 || "+tstlbl+" >= "+ generateTemp(fm, pp.base, lb) + "->___length___) ? 0 :"+
1552 "((" + type + "*)(((char *) &("+ generateTemp(fm, pp.base, lb)+ "->___length___))+sizeof(int)))["+tstlbl+"]) : 0)");
1556 for(i = 1; i < pp.desc.size(); i++) {
1557 TypeDescriptor newtd;
1559 String newfieldoffset;
1560 Object desc = pp.getDescAt(i);
1562 if(desc instanceof FieldDescriptor) {
1563 Object prevdesc = pp.getDescAt(i-1);
1564 if(prevdesc instanceof IndexDescriptor){
1566 newtd = pp.base.getType();
1567 cd = newtd.getClassDesc();
1569 //FIXME currently handles one dimensional arrays
1570 newtd = ((FieldDescriptor)pp.getDescAt(i-2)).getType();
1571 cd = newtd.getClassDesc();
1573 newfieldoffset = new String("(unsigned int)(&(((struct "+ cd.getSafeSymbol() +" *)0)->"+
1574 ((FieldDescriptor)desc).getSafeSymbol()+ "))");
1576 newtd = ((FieldDescriptor)pp.getDescAt(i-1)).getType();
1577 newfieldoffset = new String("(unsigned int)(&(((struct "+ newtd.getSafeSymbol()+" *)0)->"+
1578 ((FieldDescriptor)desc).getSafeSymbol()+ "))");
1580 fieldoffset.add(newfieldoffset);
1582 String tstlbl = new String();
1583 for(j = 0; j < ((IndexDescriptor)desc).tddesc.size(); j++) {
1584 tstlbl += generateTemp(fm, ((IndexDescriptor)desc).getTempDescAt(j), lb) + "+";
1586 tstlbl += ((IndexDescriptor)desc).offset.toString();
1587 newfieldoffset = new String(tstlbl);
1588 fieldoffset.add(newfieldoffset);
1591 if(tuplecount > 0) {
1592 int tmp = (int) ((Short)(endoffset.get(tuplecount-1))).shortValue() + (int) offsetcount;
1593 short endoffsetval = (short) tmp;
1594 endoffset.add(endoffsetval);
1596 endoffset.add(offsetcount);
1601 public void generateOutsideTransCode(FlatMethod fm, LocalityBinding lb,PrefetchPair pp, Vector oids, Vector fieldoffset, Vector endoffset, int tuplecount) {
1603 short offsetcount = 0;
1605 String oid = new String(" (unsigned int) (" + generateTemp(fm, pp.base, lb)+ ")");
1607 for(i = 0; i < pp.desc.size(); i++) {
1608 TypeDescriptor newtd;
1610 String newfieldoffset;
1611 Object desc = pp.getDescAt(i);
1613 if(desc instanceof FieldDescriptor) {
1615 newtd = pp.base.getType();
1616 newfieldoffset = new String("(unsigned int)(&(((struct "+ newtd.getSafeSymbol()+" *)0)->"+
1617 ((FieldDescriptor)desc).getSafeSymbol()+ "))");
1619 Object prevdesc = pp.getDescAt(i-1);
1620 if(prevdesc instanceof IndexDescriptor){
1622 newtd = pp.base.getType();
1623 cd = newtd.getClassDesc();
1625 //FIXME currently handles one dimensional arrays
1626 newtd = ((FieldDescriptor)pp.getDescAt(i-2)).getType();
1627 cd = newtd.getClassDesc();
1629 newfieldoffset = new String("(unsigned int)(&(((struct "+ cd.getSafeSymbol() +" *)0)->"+
1630 ((FieldDescriptor)desc).getSafeSymbol()+ "))");
1632 newtd = ((FieldDescriptor)pp.getDescAt(i-1)).getType();
1633 newfieldoffset = new String("(unsigned int)(&(((struct "+ newtd.getSafeSymbol()+" *)0)->"+
1634 ((FieldDescriptor)desc).getSafeSymbol()+ "))");
1638 String tstlbl = new String();
1639 for(j = 0; j < ((IndexDescriptor)desc).tddesc.size(); j++) {
1640 tstlbl += generateTemp(fm, ((IndexDescriptor)desc).getTempDescAt(j), lb) + "+";
1642 tstlbl += ((IndexDescriptor)desc).offset.toString();
1643 newfieldoffset = new String(tstlbl);
1645 fieldoffset.add(newfieldoffset);
1647 if(tuplecount > 0) {
1648 int tmp = (int) ((Short)(endoffset.get(tuplecount-1))).shortValue() + (int) offsetcount;
1649 short endoffsetval = (short) tmp;
1650 endoffset.add(endoffsetval);
1652 endoffset.add(offsetcount);
1656 public void generateLocalTransCode(FlatMethod fm, LocalityBinding lb,PrefetchPair pp,Vector oids, Vector fieldoffset,Vector endoffset, int tuplecount) {
1658 short offsetcount = 0;
1660 Vector prefix = new Vector();
1661 prefix.add(generateTemp(fm,pp.base,lb));
1662 String tstlbl = new String("(" + prefix.get(0) + " != NULL ");
1663 for (i = 0; i < pp.desc.size(); i++) {
1664 Object newdesc = pp.desc.get(i);
1665 if(newdesc instanceof FieldDescriptor) {
1666 FieldDescriptor fd = (FieldDescriptor) newdesc;
1668 /* Field descriptor is global */
1669 String oid = new String(" (unsigned int) (");
1671 for(j = 0; j < prefix.size(); j++) {
1672 tstlbl += prefix.get(j) + "->";
1674 tstlbl += fd.getSafeSymbol() + ": NULL";
1675 oid += tstlbl+ " )";
1677 for(j = i+1; j < pp.desc.size(); j++) {
1678 TypeDescriptor newtd;
1679 String newfieldoffset;
1680 Object desc = pp.getDescAt(j);
1682 if(desc instanceof FieldDescriptor) {
1683 Object prevdesc = pp.getDescAt(j-1);
1684 if(prevdesc instanceof IndexDescriptor){
1685 //FIXME currently handles one dimensional arrays
1686 newtd = ((FieldDescriptor)pp.getDescAt(j-2)).getType();
1688 newtd = ((FieldDescriptor) pp.getDescAt(j-1)).getType();
1690 newfieldoffset = new String("(unsigned int)(&(((struct "+ newtd.getSafeSymbol()+" *)0)->"+
1691 ((FieldDescriptor)desc).getSafeSymbol()+ "))");
1693 String indexlbl = new String();
1694 for(k = 0; k < ((IndexDescriptor)desc).tddesc.size(); k++) {
1695 indexlbl += generateTemp(fm, ((IndexDescriptor)desc).getTempDescAt(k), lb) + "+";
1697 indexlbl += ((IndexDescriptor)desc).offset.toString();
1698 newfieldoffset = new String(indexlbl);
1700 fieldoffset.add(newfieldoffset);
1702 if(tuplecount > 0) {
1703 int tmp = (int) ((Short)(endoffset.get(tuplecount-1))).shortValue() + (int) offsetcount;
1704 short endoffsetval = (short) tmp;
1705 endoffset.add(endoffsetval);
1707 endoffset.add(offsetcount);
1710 break; //break from outer for loop
1713 for(j = 0; j < prefix.size(); j++) {
1714 tstlbl += prefix.get(j) + "->";
1716 prefix.add(fd.getSafeSymbol());
1717 tstlbl += fd.getSafeSymbol() + " != NULL";
1719 } else { /* if Index descriptor */
1720 String indexstring = new String();
1721 IndexDescriptor id = (IndexDescriptor) newdesc;
1723 indexstring = generateTemp(fm, pp.base, lb);
1725 indexstring = ((FieldDescriptor)pp.getDescAt(i-1)).getSafeSymbol();
1728 for(j = 0; j < prefix.size(); j++) {
1729 tstlbl += prefix.get(j) + "[";
1732 for(j = 0; j < id.tddesc.size(); j++) {
1733 tstlbl += generateTemp(fm, id.getTempDescAt(j), lb) + "+";
1734 indexstring += generateTemp(fm,id.getTempDescAt(j), lb) + "+";
1736 tstlbl += id.offset.toString()+ "]";
1737 indexstring += id.offset.toString()+ "]";
1738 prefix. removeElementAt(prefix.size() -1);
1739 prefix.add(indexstring);
1740 tstlbl += " != NULL";
1745 public void generateFlatGlobalConvNode(FlatMethod fm, LocalityBinding lb, FlatGlobalConvNode fgcn, PrintWriter output) {
1746 if (lb!=fgcn.getLocality())
1748 /* Have to generate flat globalconv */
1749 if (fgcn.getMakePtr()) {
1750 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)transRead(trans, (unsigned int) "+generateTemp(fm, fgcn.getSrc(),lb)+");");
1752 /* Need to convert to OID */
1753 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)COMPOID("+generateTemp(fm, fgcn.getSrc(),lb)+");");
1757 public void generateFlatAtomicEnterNode(FlatMethod fm, LocalityBinding lb, FlatAtomicEnterNode faen, PrintWriter output) {
1758 /* Check to see if we need to generate code for this atomic */
1759 if (locality.getAtomic(lb).get(faen.getPrev(0)).intValue()>0)
1761 /* Backup the temps. */
1762 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1763 TempDescriptor tmp=tmpit.next();
1764 output.println(generateTemp(fm, backuptable.get(tmp),lb)+"="+generateTemp(fm,tmp,lb)+";");
1766 output.println("goto transstart"+faen.getIdentifier()+";");
1768 /******* Print code to retry aborted transaction *******/
1769 output.println("transretry"+faen.getIdentifier()+":");
1772 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1773 TempDescriptor tmp=tmpit.next();
1774 output.println(generateTemp(fm, tmp,lb)+"="+generateTemp(fm,backuptable.get(tmp),lb)+";");
1777 /********* Need to revert local object store ********/
1778 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1780 output.println("while ("+revertptr+") {");
1781 output.println("struct ___Object___ * tmpptr;");
1782 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1783 output.println("REVERT_OBJ("+revertptr+");");
1784 output.println(revertptr+"=tmpptr;");
1785 output.println("}");
1787 /******* Tell the runtime to start the transaction *******/
1789 output.println("transstart"+faen.getIdentifier()+":");
1790 output.println("trans=transStart();");
1793 public void generateFlatAtomicExitNode(FlatMethod fm, LocalityBinding lb, FlatAtomicExitNode faen, PrintWriter output) {
1794 /* Check to see if we need to generate code for this atomic */
1795 if (locality.getAtomic(lb).get(faen).intValue()>0)
1797 //store the revert list before we lose the transaction object
1798 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1799 output.println(revertptr+"=trans->revertlist;");
1800 output.println("if (transCommit(trans)) {");
1801 /* Transaction aborts if it returns true */
1802 output.println("goto transretry"+faen.getAtomicEnter().getIdentifier()+";");
1803 output.println("} else {");
1804 /* Need to commit local object store */
1805 output.println("while ("+revertptr+") {");
1806 output.println("struct ___Object___ * tmpptr;");
1807 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1808 output.println("COMMIT_OBJ("+revertptr+");");
1809 output.println(revertptr+"=tmpptr;");
1810 output.println("}");
1811 output.println("}");
1814 private void generateFlatCheckNode(FlatMethod fm, LocalityBinding lb, FlatCheckNode fcn, PrintWriter output) {
1815 if (state.CONSCHECK) {
1816 String specname=fcn.getSpec();
1817 String varname="repairstate___";
1818 output.println("{");
1819 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1821 TempDescriptor[] temps=fcn.getTemps();
1822 String[] vars=fcn.getVars();
1823 for(int i=0;i<temps.length;i++) {
1824 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i],lb)+";");
1827 output.println("if (doanalysis"+specname+"("+varname+")) {");
1828 output.println("free"+specname+"_state("+varname+");");
1829 output.println("} else {");
1830 output.println("/* Bad invariant */");
1831 output.println("free"+specname+"_state("+varname+");");
1832 output.println("abort_task();");
1833 output.println("}");
1834 output.println("}");
1838 private void generateFlatCall(FlatMethod fm, LocalityBinding lb, FlatCall fc, PrintWriter output) {
1839 MethodDescriptor md=fc.getMethod();
1840 ParamsObject objectparams=(ParamsObject)paramstable.get(state.DSM?locality.getBinding(lb, fc):md);
1841 ClassDescriptor cn=md.getClassDesc();
1842 output.println("{");
1843 if (GENERATEPRECISEGC) {
1845 LocalityBinding fclb=locality.getBinding(lb, fc);
1846 output.print(" struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1848 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1850 output.print(objectparams.numPointers());
1851 output.print(", & "+localsprefix);
1852 if (fc.getThis()!=null) {
1854 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis(),lb));
1856 for(int i=0;i<fc.numArgs();i++) {
1857 Descriptor var=md.getParameter(i);
1858 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1859 if (objectparams.isParamPtr(paramtemp)) {
1860 TempDescriptor targ=fc.getArg(i);
1862 TypeDescriptor td=md.getParamType(i);
1864 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1866 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1869 output.println("};");
1874 if (fc.getReturnTemp()!=null)
1875 output.print(generateTemp(fm,fc.getReturnTemp(),lb)+"=");
1877 /* Do we need to do virtual dispatch? */
1878 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
1881 LocalityBinding fclb=locality.getBinding(lb, fc);
1882 output.print(cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1884 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1889 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1890 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1892 output.print(md.getReturnType().getSafeSymbol()+" ");
1893 output.print("(*)(");
1895 boolean printcomma=false;
1896 if (GENERATEPRECISEGC) {
1898 LocalityBinding fclb=locality.getBinding(lb, fc);
1899 output.print("struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1901 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1905 for(int i=0;i<objectparams.numPrimitives();i++) {
1906 TempDescriptor temp=objectparams.getPrimitive(i);
1910 if (temp.getType().isClass()||temp.getType().isArray())
1911 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
1913 output.print(temp.getType().getSafeSymbol());
1917 LocalityBinding fclb=locality.getBinding(lb, fc);
1918 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getLocalityNumber(fclb)+"])");
1920 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
1924 boolean needcomma=false;
1925 if (GENERATEPRECISEGC) {
1926 output.print("&__parameterlist__");
1930 if (state.DSM&&locality.getBinding(lb,fc).isAtomic()) {
1933 output.print("trans");
1937 if (!GENERATEPRECISEGC) {
1938 if (fc.getThis()!=null) {
1939 TypeDescriptor ptd=md.getThis().getType();
1942 if (ptd.isClass()&&!ptd.isArray())
1943 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1944 output.print(generateTemp(fm,fc.getThis(),lb));
1949 for(int i=0;i<fc.numArgs();i++) {
1950 Descriptor var=md.getParameter(i);
1951 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1952 if (objectparams.isParamPrim(paramtemp)) {
1953 TempDescriptor targ=fc.getArg(i);
1957 TypeDescriptor ptd=md.getParamType(i);
1958 if (ptd.isClass()&&!ptd.isArray())
1959 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1960 output.print(generateTemp(fm, targ,lb));
1964 output.println(");");
1965 output.println(" }");
1968 private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
1969 Set subclasses=typeutil.getSubClasses(thiscd);
1970 if (subclasses==null)
1972 for(Iterator classit=subclasses.iterator();classit.hasNext();) {
1973 ClassDescriptor cd=(ClassDescriptor)classit.next();
1974 Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
1975 for(Iterator matchit=possiblematches.iterator();matchit.hasNext();) {
1976 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
1977 if (md.matches(matchmd))
1984 private void generateFlatFieldNode(FlatMethod fm, LocalityBinding lb, FlatFieldNode ffn, PrintWriter output) {
1986 Integer status=locality.getNodePreTempInfo(lb,ffn).get(ffn.getSrc());
1987 if (status==LocalityAnalysis.GLOBAL) {
1988 String field=ffn.getField().getSafeSymbol();
1989 String src=generateTemp(fm, ffn.getSrc(),lb);
1990 String dst=generateTemp(fm, ffn.getDst(),lb);
1992 if (ffn.getField().getType().isPtr()) {
1994 //TODO: Uncomment this when we have runtime support
1995 //if (ffn.getSrc()==ffn.getDst()) {
1996 //output.println("{");
1997 //output.println("void * temp="+src+";");
1998 //output.println("if (temp&0x1) {");
1999 //output.println("temp=(void *) transRead(trans, (unsigned int) temp);");
2000 //output.println(src+"->"+field+"="+temp+";");
2001 //output.println("}");
2002 //output.println(dst+"=temp;");
2003 //output.println("}");
2005 output.println(dst+"="+ src +"->"+field+ ";");
2006 //output.println("if ("+dst+"&0x1) {");
2007 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
2008 //output.println(src+"->"+field+"="+src+"->"+field+";");
2009 //output.println("}");
2012 output.println(dst+"="+ src+"->"+field+";");
2014 } else if (status==LocalityAnalysis.LOCAL) {
2015 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
2016 } else if (status==LocalityAnalysis.EITHER) {
2017 //Code is reading from a null pointer
2018 output.println("if ("+generateTemp(fm, ffn.getSrc(),lb)+") {");
2019 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
2020 //This should throw a suitable null pointer error
2021 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
2023 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
2025 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
2029 private void generateFlatSetFieldNode(FlatMethod fm, LocalityBinding lb, FlatSetFieldNode fsfn, PrintWriter output) {
2030 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
2031 throw new Error("Can't set array length");
2032 if (state.DSM && locality.getAtomic(lb).get(fsfn).intValue()>0) {
2033 Integer statussrc=locality.getNodePreTempInfo(lb,fsfn).get(fsfn.getSrc());
2034 Integer statusdst=locality.getNodeTempInfo(lb).get(fsfn).get(fsfn.getDst());
2035 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
2037 String src=generateTemp(fm,fsfn.getSrc(),lb);
2038 String dst=generateTemp(fm,fsfn.getDst(),lb);
2040 output.println("{");
2041 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
2043 if (statusdst.equals(LocalityAnalysis.GLOBAL)) {
2046 output.println("*((unsigned int *)&("+dst+"->___localcopy___))|=DIRTY;");
2048 output.println("*((unsigned int *)&("+glbdst+"->"+ fsfn.getField().getSafeSymbol()+"))=srcoid;");
2050 output.println(glbdst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
2051 } else if (statusdst.equals(LocalityAnalysis.LOCAL)) {
2052 /** Check if we need to copy */
2053 output.println("if(!"+dst+"->"+localcopystr+") {");
2054 /* Link object into list */
2055 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2056 output.println(revertptr+"=trans->revertlist;");
2057 if (GENERATEPRECISEGC)
2058 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
2060 output.println("COPY_OBJ("+dst+");");
2061 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
2062 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
2063 output.println("}");
2065 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
2067 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
2068 } else if (statusdst.equals(LocalityAnalysis.EITHER)) {
2069 //writing to a null...bad
2070 output.println("if ("+dst+") {");
2071 output.println("printf(\"BIG ERROR 2\\n\");exit(-1);}");
2073 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
2075 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
2078 output.println("}");
2081 output.println(generateTemp(fm, fsfn.getDst(),lb)+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc(),lb)+";");
2085 private void generateFlatElementNode(FlatMethod fm, LocalityBinding lb, FlatElementNode fen, PrintWriter output) {
2086 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
2089 if (elementtype.isArray()||elementtype.isClass())
2092 type=elementtype.getSafeSymbol()+" ";
2094 if (fen.needsBoundsCheck()) {
2095 output.println("if ("+generateTemp(fm, fen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fen.getIndex(),lb)+" >= "+generateTemp(fm,fen.getSrc(),lb) + "->___length___)");
2096 output.println("failedboundschk();");
2099 Integer status=locality.getNodePreTempInfo(lb,fen).get(fen.getSrc());
2100 if (status==LocalityAnalysis.GLOBAL) {
2101 String dst=generateTemp(fm, fen.getDst(),lb);
2103 if (elementtype.isPtr()) {
2104 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2105 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
2107 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2109 } else if (status==LocalityAnalysis.LOCAL) {
2110 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2111 } else if (status==LocalityAnalysis.EITHER) {
2112 //Code is reading from a null pointer
2113 output.println("if ("+generateTemp(fm, fen.getSrc(),lb)+") {");
2114 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
2115 //This should throw a suitable null pointer error
2116 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2118 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
2120 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2124 private void generateFlatSetElementNode(FlatMethod fm, LocalityBinding lb, FlatSetElementNode fsen, PrintWriter output) {
2125 //TODO: need dynamic check to make sure this assignment is actually legal
2126 //Because Object[] could actually be something more specific...ie. Integer[]
2128 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2131 if (elementtype.isArray()||elementtype.isClass())
2134 type=elementtype.getSafeSymbol()+" ";
2137 if (fsen.needsBoundsCheck()) {
2138 output.println("if ("+generateTemp(fm, fsen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fsen.getIndex(),lb)+" >= "+generateTemp(fm,fsen.getDst(),lb) + "->___length___)");
2139 output.println("failedboundschk();");
2142 if (state.DSM && locality.getAtomic(lb).get(fsen).intValue()>0) {
2143 Integer statussrc=locality.getNodePreTempInfo(lb,fsen).get(fsen.getSrc());
2144 Integer statusdst=locality.getNodePreTempInfo(lb,fsen).get(fsen.getDst());
2145 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
2146 boolean dstglobal=statusdst==LocalityAnalysis.GLOBAL;
2147 boolean dstlocal=statusdst==LocalityAnalysis.LOCAL;
2150 output.println("*((unsigned int *)&("+generateTemp(fm,fsen.getDst(),lb)+"->___localcopy___))|=DIRTY;");
2151 } else if (dstlocal) {
2152 /** Check if we need to copy */
2153 String dst=generateTemp(fm, fsen.getDst(),lb);
2154 output.println("if(!"+dst+"->"+localcopystr+") {");
2155 /* Link object into list */
2156 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2157 output.println(revertptr+"=trans->revertlist;");
2158 if (GENERATEPRECISEGC)
2159 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
2161 output.println("COPY_OBJ("+dst+");");
2162 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
2163 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
2164 output.println("}");
2165 } else throw new Error("Unknown array type");
2167 output.println("{");
2168 String src=generateTemp(fm, fsen.getSrc(), lb);
2169 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
2170 output.println("((int*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]=srcoid;");
2171 output.println("}");
2173 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2176 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2179 private void generateFlatNew(FlatMethod fm, LocalityBinding lb, FlatNew fn, PrintWriter output) {
2180 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2181 //Stash pointer in case of GC
2182 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2183 output.println(revertptr+"=trans->revertlist;");
2185 if (fn.getType().isArray()) {
2186 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2187 if (fn.isGlobal()) {
2188 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarrayglobal(trans, "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2189 } else if (GENERATEPRECISEGC) {
2190 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray(&"+localsprefix+", "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2192 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2195 if (fn.isGlobal()) {
2196 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newglobal(trans, "+fn.getType().getClassDesc().getId()+");");
2197 } else if (GENERATEPRECISEGC) {
2198 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new(&"+localsprefix+", "+fn.getType().getClassDesc().getId()+");");
2200 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2203 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2204 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2205 output.println("trans->revertlist="+revertptr+";");
2209 private void generateFlatTagDeclaration(FlatMethod fm, LocalityBinding lb, FlatTagDeclaration fn, PrintWriter output) {
2210 if (GENERATEPRECISEGC) {
2211 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag(&"+localsprefix+", "+state.getTagId(fn.getType())+");");
2213 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag("+state.getTagId(fn.getType())+");");
2217 private void generateFlatOpNode(FlatMethod fm, LocalityBinding lb, FlatOpNode fon, PrintWriter output) {
2218 if (fon.getRight()!=null) {
2219 if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2220 if (fon.getLeft().getType().isLong())
2221 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2223 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned int)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2226 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+fon.getOp().toString()+generateTemp(fm,fon.getRight(),lb)+";");
2227 } else if (fon.getOp().getOp()==Operation.ASSIGN)
2228 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2229 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2230 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2231 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2232 output.println(generateTemp(fm, fon.getDest(),lb)+" = -"+generateTemp(fm, fon.getLeft(),lb)+";");
2233 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2234 output.println(generateTemp(fm, fon.getDest(),lb)+" = !"+generateTemp(fm, fon.getLeft(),lb)+";");
2235 else if (fon.getOp().getOp()==Operation.COMP)
2236 output.println(generateTemp(fm, fon.getDest(),lb)+" = ~"+generateTemp(fm, fon.getLeft(),lb)+";");
2237 else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2238 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+"->fses==NULL;");
2240 output.println(generateTemp(fm, fon.getDest(),lb)+fon.getOp().toString()+generateTemp(fm, fon.getLeft(),lb)+";");
2243 private void generateFlatCastNode(FlatMethod fm, LocalityBinding lb, FlatCastNode fcn, PrintWriter output) {
2244 /* TODO: Do type check here */
2245 if (fcn.getType().isArray()) {
2247 } else if (fcn.getType().isClass())
2248 output.println(generateTemp(fm,fcn.getDst(),lb)+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc(),lb)+";");
2250 output.println(generateTemp(fm,fcn.getDst(),lb)+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc(),lb)+";");
2253 private void generateFlatLiteralNode(FlatMethod fm, LocalityBinding lb, FlatLiteralNode fln, PrintWriter output) {
2254 if (fln.getValue()==null)
2255 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2256 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2257 if (GENERATEPRECISEGC) {
2258 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2259 //Stash pointer in case of GC
2260 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2261 output.println(revertptr+"=trans->revertlist;");
2263 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(&"+localsprefix+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2264 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2265 //Stash pointer in case of GC
2266 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2267 output.println("trans->revertlist="+revertptr+";");
2270 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2272 } else if (fln.getType().isBoolean()) {
2273 if (((Boolean)fln.getValue()).booleanValue())
2274 output.println(generateTemp(fm, fln.getDst(),lb)+"=1;");
2276 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2277 } else if (fln.getType().isChar()) {
2278 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2279 output.println(generateTemp(fm, fln.getDst(),lb)+"='"+st+"';");
2280 } else if (fln.getType().isLong()) {
2281 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+"LL;");
2283 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+";");
2286 private void generateFlatReturnNode(FlatMethod fm, LocalityBinding lb, FlatReturnNode frn, PrintWriter output) {
2287 if (frn.getReturnTemp()!=null) {
2288 if (frn.getReturnTemp().getType().isPtr())
2289 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2291 output.println("return "+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2293 output.println("return;");
2296 private void generateFlatCondBranch(FlatMethod fm, LocalityBinding lb, FlatCondBranch fcb, String label, PrintWriter output) {
2297 output.println("if (!"+generateTemp(fm, fcb.getTest(),lb)+") goto "+label+";");
2300 /** This method generates header information for the method or
2301 * task referenced by the Descriptor des. */
2303 private void generateHeader(FlatMethod fm, LocalityBinding lb, Descriptor des, PrintWriter output) {
2305 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:des);
2306 MethodDescriptor md=null;
2307 TaskDescriptor task=null;
2308 if (des instanceof MethodDescriptor)
2309 md=(MethodDescriptor) des;
2311 task=(TaskDescriptor) des;
2313 ClassDescriptor cn=md!=null?md.getClassDesc():null;
2315 if (md!=null&&md.getReturnType()!=null) {
2316 if (md.getReturnType().isClass()||md.getReturnType().isArray())
2317 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2319 output.print(md.getReturnType().getSafeSymbol()+" ");
2321 //catch the constructor case
2322 output.print("void ");
2325 output.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2327 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2329 output.print(task.getSafeSymbol()+"(");
2331 boolean printcomma=false;
2332 if (GENERATEPRECISEGC) {
2335 output.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2337 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2339 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2343 if (state.DSM&&lb.isAtomic()) {
2346 output.print("transrecord_t * trans");
2352 for(int i=0;i<objectparams.numPrimitives();i++) {
2353 TempDescriptor temp=objectparams.getPrimitive(i);
2357 if (temp.getType().isClass()||temp.getType().isArray())
2358 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2360 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2362 output.println(") {");
2363 } else if (!GENERATEPRECISEGC) {
2364 /* Imprecise Task */
2365 output.println("void * parameterarray[]) {");
2366 /* Unpack variables */
2367 for(int i=0;i<objectparams.numPrimitives();i++) {
2368 TempDescriptor temp=objectparams.getPrimitive(i);
2369 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2371 for(int i=0;i<fm.numTags();i++) {
2372 TempDescriptor temp=fm.getTag(i);
2373 int offset=i+objectparams.numPrimitives();
2374 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2377 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2378 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2379 } else output.println(") {");
2382 public void generateFlatFlagActionNode(FlatMethod fm, LocalityBinding lb, FlatFlagActionNode ffan, PrintWriter output) {
2383 output.println("/* FlatFlagActionNode */");
2386 /* Process tag changes */
2387 Relation tagsettable=new Relation();
2388 Relation tagcleartable=new Relation();
2390 Iterator tagsit=ffan.getTempTagPairs();
2391 while (tagsit.hasNext()) {
2392 TempTagPair ttp=(TempTagPair) tagsit.next();
2393 TempDescriptor objtmp=ttp.getTemp();
2394 TagDescriptor tag=ttp.getTag();
2395 TempDescriptor tagtmp=ttp.getTagTemp();
2396 boolean tagstatus=ffan.getTagChange(ttp);
2398 tagsettable.put(objtmp, tagtmp);
2400 tagcleartable.put(objtmp, tagtmp);
2405 Hashtable flagandtable=new Hashtable();
2406 Hashtable flagortable=new Hashtable();
2408 /* Process flag changes */
2409 Iterator flagsit=ffan.getTempFlagPairs();
2410 while(flagsit.hasNext()) {
2411 TempFlagPair tfp=(TempFlagPair)flagsit.next();
2412 TempDescriptor temp=tfp.getTemp();
2413 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2414 FlagDescriptor flag=tfp.getFlag();
2416 //Newly allocate objects that don't set any flags case
2417 if (flagortable.containsKey(temp)) {
2421 flagortable.put(temp,new Integer(mask));
2423 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2424 boolean flagstatus=ffan.getFlagChange(tfp);
2427 if (flagortable.containsKey(temp)) {
2428 mask=((Integer)flagortable.get(temp)).intValue();
2431 flagortable.put(temp,new Integer(mask));
2433 int mask=0xFFFFFFFF;
2434 if (flagandtable.containsKey(temp)) {
2435 mask=((Integer)flagandtable.get(temp)).intValue();
2437 mask&=(0xFFFFFFFF^flagid);
2438 flagandtable.put(temp,new Integer(mask));
2444 HashSet flagtagset=new HashSet();
2445 flagtagset.addAll(flagortable.keySet());
2446 flagtagset.addAll(flagandtable.keySet());
2447 flagtagset.addAll(tagsettable.keySet());
2448 flagtagset.addAll(tagcleartable.keySet());
2450 Iterator ftit=flagtagset.iterator();
2451 while(ftit.hasNext()) {
2452 TempDescriptor temp=(TempDescriptor)ftit.next();
2455 Set tagtmps=tagcleartable.get(temp);
2456 if (tagtmps!=null) {
2457 Iterator tagit=tagtmps.iterator();
2458 while(tagit.hasNext()) {
2459 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2460 if (GENERATEPRECISEGC)
2461 output.println("tagclear(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2463 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2467 tagtmps=tagsettable.get(temp);
2468 if (tagtmps!=null) {
2469 Iterator tagit=tagtmps.iterator();
2470 while(tagit.hasNext()) {
2471 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2472 if (GENERATEPRECISEGC)
2473 output.println("tagset(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2475 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp, lb)+", "+generateTemp(fm,tagtmp, lb)+");");
2480 int andmask=0xFFFFFFF;
2482 if (flagortable.containsKey(temp))
2483 ormask=((Integer)flagortable.get(temp)).intValue();
2484 if (flagandtable.containsKey(temp))
2485 andmask=((Integer)flagandtable.get(temp)).intValue();
2486 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2487 output.println("flagorandinit("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2489 output.println("flagorand("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2494 void generateOptionalHeader(PrintWriter headers) {
2497 headers.println("#include \"task.h\"\n\n");
2498 headers.println("#ifndef _OPTIONAL_STRUCT_");
2499 headers.println("#define _OPTIONAL_STRUCT_");
2501 //STRUCT PREDICATEMEMBER
2502 headers.println("struct predicatemember{");
2503 headers.println("int type;");
2504 headers.println("int numdnfterms;");
2505 headers.println("int * flags;");
2506 headers.println("int numtags;");
2507 headers.println("int * tags;\n};\n\n");
2509 //STRUCT OPTIONALTASKDESCRIPTOR
2510 headers.println("struct optionaltaskdescriptor{");
2511 headers.println("struct taskdescriptor * task;");
2512 headers.println("int index;");
2513 headers.println("int numenterflags;");
2514 headers.println("int * enterflags;");
2515 headers.println("int numpredicatemembers;");
2516 headers.println("struct predicatemember ** predicatememberarray;");
2517 headers.println("};\n\n");
2519 //STRUCT TASKFAILURE
2520 headers.println("struct taskfailure {");
2521 headers.println("struct taskdescriptor * task;");
2522 headers.println("int index;");
2523 headers.println("int numoptionaltaskdescriptors;");
2524 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2526 //STRUCT FSANALYSISWRAPPER
2527 headers.println("struct fsanalysiswrapper{");
2528 headers.println("int flags;");
2529 headers.println("int numtags;");
2530 headers.println("int * tags;");
2531 headers.println("int numtaskfailures;");
2532 headers.println("struct taskfailure ** taskfailurearray;");
2533 headers.println("int numoptionaltaskdescriptors;");
2534 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2536 //STRUCT CLASSANALYSISWRAPPER
2537 headers.println("struct classanalysiswrapper{");
2538 headers.println("int type;");
2539 headers.println("int numotd;");
2540 headers.println("struct optionaltaskdescriptor ** otdarray;");
2541 headers.println("int numfsanalysiswrappers;");
2542 headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
2544 headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
2546 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
2547 while(taskit.hasNext()) {
2548 TaskDescriptor td=(TaskDescriptor)taskit.next();
2549 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
2554 //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
2555 int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
2556 int predicateindex = 0;
2557 //iterate through the classes concerned by the predicate
2558 Set c_vard = predicate.vardescriptors;
2559 Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
2562 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext();){
2563 VarDescriptor vard = (VarDescriptor)vard_it.next();
2564 TypeDescriptor typed = vard.getType();
2566 //generate for flags
2567 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
2568 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2570 if (fen_hashset!=null){
2571 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext();){
2572 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
2574 DNFFlag dflag=fen.getDNF();
2575 numberterms+=dflag.size();
2577 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
2579 for(int j=0;j<dflag.size();j++) {
2581 output.println(",");
2582 Vector term=dflag.get(j);
2585 for(int k=0;k<term.size();k++) {
2586 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
2587 FlagDescriptor fd=dfa.getFlag();
2588 boolean negated=dfa.getNegated();
2589 int flagid=1<<((Integer)flags.get(fd)).intValue();
2594 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
2599 output.println("};\n");
2602 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
2603 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2606 for(int j=0;j<tagel.numTags();j++) {
2608 output.println(",");
2609 TempDescriptor tmp=tagel.getTemp(j);
2610 if (!slotnumber.containsKey(tmp)) {
2611 Integer slotint=new Integer(current_slot++);
2612 slotnumber.put(tmp,slotint);
2614 int slot=slotnumber.get(tmp).intValue();
2615 output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
2617 numtags = tagel.numTags();
2619 output.println("};");
2621 //store the result into a predicatemember struct
2622 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2623 output.println("/*type*/"+typed.getClassDesc().getId()+",");
2624 output.println("/* number of dnf terms */"+numberterms+",");
2625 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2626 output.println("/* number of tag */"+numtags+",");
2627 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2628 output.println("};\n");
2633 //generate an array that stores the entire predicate
2634 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2635 for( int j = 0; j<predicateindex; j++){
2636 if( j != predicateindex-1)output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2637 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2639 output.println("};\n");
2640 return predicateindex;
2644 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
2645 generateOptionalHeader(headers);
2647 output.println("#include \"optionalstruct.h\"\n\n");
2648 output.println("#include \"stdlib.h\"\n");
2650 HashSet processedcd = new HashSet();
2652 Enumeration e = safeexecution.keys();
2653 while (e.hasMoreElements()) {
2656 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
2657 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp);//will be used several times
2659 //Generate the struct of optionals
2660 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2661 numotd = c_otd.size();
2662 if(maxotd<numotd) maxotd = numotd;
2663 if( !c_otd.isEmpty() ){
2664 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2665 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2667 //generate the int arrays for the predicate
2668 Predicate predicate = otd.predicate;
2669 int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
2670 TreeSet<Integer> fsset=new TreeSet<Integer>();
2671 //iterate through possible FSes corresponding to
2672 //the state when entering
2674 for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext();){
2675 FlagState fs = (FlagState)fses.next();
2677 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2678 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2679 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2682 fsset.add(new Integer(flagid));
2683 //tag information not needed because tag
2684 //changes are not tolerated.
2687 output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2688 boolean needcomma=false;
2689 for(Iterator<Integer> it=fsset.iterator();it.hasNext();) {
2692 output.println(it.next());
2695 output.println("};\n");
2698 //generate optionaltaskdescriptor that actually
2699 //includes exit fses, predicate and the task
2701 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2702 output.println("&task_"+otd.td.getSafeSymbol()+",");
2703 output.println("/*index*/"+otd.getIndex()+",");
2704 output.println("/*number of enter flags*/"+fsset.size()+",");
2705 output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2706 output.println("/*number of members */"+predicateindex+",");
2707 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2708 output.println("};\n");
2712 // if there are no optionals, there is no need to build the rest of the struct
2714 output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
2715 c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2716 if( !c_otd.isEmpty() ){
2717 boolean needcomma=false;
2718 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2719 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2721 output.println(",");
2723 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2726 output.println("};\n");
2728 //get all the possible flagstates reachable by an object
2729 Hashtable hashtbtemp = safeexecution.get(cdtemp);
2731 TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
2732 fsts.addAll(hashtbtemp.keySet());
2733 for(Iterator fsit=fsts.iterator();fsit.hasNext();) {
2734 FlagState fs = (FlagState)fsit.next();
2737 //get the set of OptionalTaskDescriptors corresponding
2738 HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
2739 //iterate through the OptionalTaskDescriptors and
2740 //store the pointers to the optionals struct (see on
2741 //top) into an array
2743 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
2744 for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext();){
2745 OptionalTaskDescriptor mm = mos.next();
2747 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
2749 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2752 output.println("};\n");
2754 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
2757 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2758 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2759 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2763 //process tag information
2766 boolean first = true;
2767 Enumeration tag_enum = fs.getTags();
2768 output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2769 while(tag_enum.hasMoreElements()){
2771 TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
2775 output.println(", ");
2776 output.println("/*tagid*/"+state.getTagId(tagd));
2778 output.println("};");
2780 Set<TaskIndex> tiset=sa.getTaskIndex(fs);
2781 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2782 TaskIndex ti=itti.next();
2786 Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
2788 output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
2789 boolean needcomma=false;
2790 for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator();otdit.hasNext();) {
2791 OptionalTaskDescriptor otd=otdit.next();
2795 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2797 output.println("};");
2799 output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
2800 output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
2801 output.print(ti.getIndex()+", ");
2802 output.print(otdset.size()+", ");
2803 output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
2804 output.println("};");
2807 tiset=sa.getTaskIndex(fs);
2808 boolean needcomma=false;
2810 output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2811 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2812 TaskIndex ti=itti.next();
2813 if (ti.isRuntime()) {
2820 output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
2822 output.println("};\n");
2824 //Store the result in fsanalysiswrapper
2826 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
2827 output.println("/*flag*/"+flagid+",");
2828 output.println("/* number of tags*/"+tagcounter+",");
2829 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2830 output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
2831 output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2832 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
2833 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
2834 output.println("};\n");
2838 //Build the array of fsanalysiswrappers
2839 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
2840 boolean needcomma=false;
2841 for(int i = 0; i<fscounter; i++){
2842 if (needcomma) output.print(",");
2843 output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
2846 output.println("};");
2848 //Build the classanalysiswrapper referring to the previous array
2849 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
2850 output.println("/*type*/"+cdtemp.getId()+",");
2851 output.println("/*numotd*/"+numotd+",");
2852 output.println("otdarray"+cdtemp.getSafeSymbol()+",");
2853 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
2854 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
2855 processedcd.add(cdtemp);
2858 //build an array containing every classes for which code has been build
2859 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
2860 for(int i=0;i<state.numClasses();i++) {
2861 ClassDescriptor cn=cdarray[i];
2864 if (processedcd.contains(cn))
2865 output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
2867 output.print("NULL");
2869 output.println("};");
2871 output.println("#define MAXOTD "+maxotd);
2872 headers.println("#endif");
2875 public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
2876 Relation r=new Relation();
2877 for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator();otdit.hasNext();) {
2878 OptionalTaskDescriptor otd=otdit.next();
2879 TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
2883 LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
2884 for(Iterator it=r.keySet().iterator();it.hasNext();) {
2885 Set s=r.get(it.next());
2886 for(Iterator it2=s.iterator();it2.hasNext();) {
2887 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();