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);
927 Iterator fieldit=cn.getFields();
928 while(fieldit.hasNext()) {
929 FieldDescriptor fd=(FieldDescriptor)fieldit.next();
930 if (sp==null||!sp.getFieldTable().contains(fd.getSymbol()))
934 Vector fields=(Vector)fieldorder.get(cn);
936 for(int i=0;i<fields.size();i++) {
937 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
938 if (fd.getType().isClass()||fd.getType().isArray())
939 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
941 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
946 /* Map flags to integers consistently between inherited
949 private void mapFlags(ClassDescriptor cn) {
950 ClassDescriptor sp=cn.getSuperDesc();
954 if (!flagorder.containsKey(cn)) {
955 Hashtable flags=new Hashtable();
956 flagorder.put(cn,flags);
958 Hashtable superflags=(Hashtable)flagorder.get(sp);
959 Iterator superflagit=superflags.keySet().iterator();
960 while(superflagit.hasNext()) {
961 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
962 Integer number=(Integer)superflags.get(fd);
963 flags.put(fd, number);
964 if ((number.intValue()+1)>max)
965 max=number.intValue()+1;
969 Iterator flagit=cn.getFlags();
970 while(flagit.hasNext()) {
971 FlagDescriptor fd=(FlagDescriptor)flagit.next();
972 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
973 flags.put(fd, new Integer(max++));
979 /** This function outputs (1) structures that parameters are
980 * passed in (when PRECISE GC is enabled) and (2) function
981 * prototypes for the methods */
983 private void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
984 /* Output class structure */
985 classdefout.println("struct "+cn.getSafeSymbol()+" {");
986 classdefout.println(" int type;");
988 classdefout.println(" pthread_t tid;");
989 classdefout.println(" void * lockentry;");
990 classdefout.println(" int lockcount;");
994 classdefout.println(" int flag;");
995 classdefout.println(" void * flagptr;");
997 classdefout.println(" int numfses;");
998 classdefout.println(" int * fses;");
1001 printClassStruct(cn, classdefout);
1002 classdefout.println("};\n");
1005 /* Cycle through LocalityBindings */
1006 HashSet<MethodDescriptor> nativemethods=new HashSet<MethodDescriptor>();
1007 Set<LocalityBinding> lbset=locality.getClassBindings(cn);
1009 for(Iterator<LocalityBinding> lbit=lbset.iterator();lbit.hasNext();) {
1010 LocalityBinding lb=lbit.next();
1011 MethodDescriptor md=lb.getMethod();
1012 if (md.getModifiers().isNative()) {
1013 //make sure we only print a native method once
1014 if (nativemethods.contains(md)) {
1015 FlatMethod fm=state.getMethodFlat(md);
1016 generateTempStructs(fm, lb);
1019 nativemethods.add(md);
1021 generateMethod(cn, md, lb, headersout, output);
1024 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1025 MethodDescriptor md=(MethodDescriptor)methodit.next();
1026 if (md.getModifiers().isNative()&&!nativemethods.contains(md)) {
1027 //Need to build param structure for library code
1028 FlatMethod fm=state.getMethodFlat(md);
1029 generateTempStructs(fm, null);
1030 generateMethodParam(cn, md, null, output);
1035 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1036 MethodDescriptor md=(MethodDescriptor)methodit.next();
1037 generateMethod(cn, md, null, headersout, output);
1041 private void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter output) {
1042 /* Output parameter structure */
1043 if (GENERATEPRECISEGC) {
1044 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1045 if (state.DSM&&lb!=null)
1046 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1048 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1049 output.println(" int size;");
1050 output.println(" void * next;");
1051 for(int i=0;i<objectparams.numPointers();i++) {
1052 TempDescriptor temp=objectparams.getPointer(i);
1053 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1055 output.println("};\n");
1060 private void generateMethod(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter headersout, PrintWriter output) {
1061 FlatMethod fm=state.getMethodFlat(md);
1062 generateTempStructs(fm, lb);
1064 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1065 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md);
1067 generateMethodParam(cn, md, lb, output);
1069 /* Output temp structure */
1070 if (GENERATEPRECISEGC) {
1072 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1074 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1075 output.println(" int size;");
1076 output.println(" void * next;");
1077 for(int i=0;i<objecttemps.numPointers();i++) {
1078 TempDescriptor temp=objecttemps.getPointer(i);
1079 if (temp.getType().isNull())
1080 output.println(" void * "+temp.getSafeSymbol()+";");
1082 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1084 output.println("};\n");
1087 /********* Output method declaration ***********/
1089 /* First the return type */
1090 if (md.getReturnType()!=null) {
1091 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1092 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1094 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1096 //catch the constructor case
1097 headersout.print("void ");
1099 /* Next the method name */
1101 headersout.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1103 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1105 boolean printcomma=false;
1106 if (GENERATEPRECISEGC) {
1108 headersout.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1110 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1114 if (state.DSM&&lb.isAtomic()) {
1116 headersout.print(", ");
1117 headersout.print("transrecord_t * trans");
1121 /* Output parameter list*/
1122 for(int i=0;i<objectparams.numPrimitives();i++) {
1123 TempDescriptor temp=objectparams.getPrimitive(i);
1125 headersout.print(", ");
1127 if (temp.getType().isClass()||temp.getType().isArray())
1128 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1130 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1132 headersout.println(");\n");
1136 /** This function outputs (1) structures that parameters are
1137 * passed in (when PRECISE GC is enabled) and (2) function
1138 * prototypes for the tasks */
1140 private void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1141 /* Cycle through tasks */
1142 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1144 while(taskit.hasNext()) {
1145 /* Classify parameters */
1146 TaskDescriptor task=(TaskDescriptor)taskit.next();
1147 FlatMethod fm=state.getMethodFlat(task);
1148 generateTempStructs(fm, null);
1150 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1151 TempObject objecttemps=(TempObject) tempstable.get(task);
1153 /* Output parameter structure */
1154 if (GENERATEPRECISEGC) {
1155 output.println("struct "+task.getSafeSymbol()+"_params {");
1157 output.println(" int size;");
1158 output.println(" void * next;");
1159 for(int i=0;i<objectparams.numPointers();i++) {
1160 TempDescriptor temp=objectparams.getPointer(i);
1161 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1164 output.println("};\n");
1165 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1166 maxtaskparams=objectparams.numPointers()+fm.numTags();
1170 /* Output temp structure */
1171 if (GENERATEPRECISEGC) {
1172 output.println("struct "+task.getSafeSymbol()+"_locals {");
1173 output.println(" int size;");
1174 output.println(" void * next;");
1175 for(int i=0;i<objecttemps.numPointers();i++) {
1176 TempDescriptor temp=objecttemps.getPointer(i);
1177 if (temp.getType().isNull())
1178 output.println(" void * "+temp.getSafeSymbol()+";");
1179 else if(temp.getType().isTag())
1180 output.println(" struct "+
1181 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1183 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1185 output.println("};\n");
1188 /* Output task declaration */
1189 headersout.print("void " + task.getSafeSymbol()+"(");
1191 boolean printcomma=false;
1192 if (GENERATEPRECISEGC) {
1193 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1195 headersout.print("void * parameterarray[]");
1196 headersout.println(");\n");
1200 /***** Generate code for FlatMethod fm. *****/
1202 private void generateFlatMethod(FlatMethod fm, LocalityBinding lb, PrintWriter output) {
1203 MethodDescriptor md=fm.getMethod();
1205 TaskDescriptor task=fm.getTask();
1207 ClassDescriptor cn=md!=null?md.getClassDesc():null;
1209 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:md!=null?md:task);
1210 generateHeader(fm, lb, md!=null?md:task,output);
1211 TempObject objecttemp=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1212 if (state.DSM&&lb.getHasAtomic()) {
1213 output.println("transrecord_t * trans;");
1216 if (GENERATEPRECISEGC) {
1217 if (md!=null&&state.DSM)
1218 output.print(" struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1219 else if (md!=null&&!state.DSM)
1220 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1222 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
1224 output.print(objecttemp.numPointers()+",");
1225 output.print(paramsprefix);
1226 for(int j=0;j<objecttemp.numPointers();j++)
1227 output.print(", NULL");
1228 output.println("};");
1231 for(int i=0;i<objecttemp.numPrimitives();i++) {
1232 TempDescriptor td=objecttemp.getPrimitive(i);
1233 TypeDescriptor type=td.getType();
1235 output.println(" void * "+td.getSafeSymbol()+";");
1236 else if (type.isClass()||type.isArray())
1237 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1239 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1242 /* Assign labels to FlatNode's if necessary.*/
1244 Hashtable<FlatNode, Integer> nodetolabel=assignLabels(fm);
1246 /* Check to see if we need to do a GC if this is a
1247 * multi-threaded program...*/
1249 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1250 if (state.DSM&&lb.isAtomic())
1251 output.println("checkcollect2(&"+localsprefix+",trans);");
1253 output.println("checkcollect(&"+localsprefix+");");
1256 /* Do the actual code generation */
1257 FlatNode current_node=null;
1258 HashSet tovisit=new HashSet();
1259 HashSet visited=new HashSet();
1260 tovisit.add(fm.getNext(0));
1261 while(current_node!=null||!tovisit.isEmpty()) {
1262 if (current_node==null) {
1263 current_node=(FlatNode)tovisit.iterator().next();
1264 tovisit.remove(current_node);
1266 visited.add(current_node);
1267 if (nodetolabel.containsKey(current_node))
1268 output.println("L"+nodetolabel.get(current_node)+":");
1269 if (state.INSTRUCTIONFAILURE) {
1270 if (state.THREAD||state.DSM) {
1271 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
1274 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
1276 if (current_node.numNext()==0) {
1278 generateFlatNode(fm, lb, current_node, output);
1279 if (current_node.kind()!=FKind.FlatReturnNode) {
1280 output.println(" return;");
1283 } else if(current_node.numNext()==1) {
1285 generateFlatNode(fm, lb, current_node, output);
1286 FlatNode nextnode=current_node.getNext(0);
1287 if (visited.contains(nextnode)) {
1288 output.println("goto L"+nodetolabel.get(nextnode)+";");
1291 current_node=nextnode;
1292 } else if (current_node.numNext()==2) {
1295 generateFlatCondBranch(fm, lb, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
1296 if (!visited.contains(current_node.getNext(1)))
1297 tovisit.add(current_node.getNext(1));
1298 if (visited.contains(current_node.getNext(0))) {
1299 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
1302 current_node=current_node.getNext(0);
1303 } else throw new Error();
1305 output.println("}\n\n");
1308 /** This method assigns labels to FlatNodes */
1310 private Hashtable<FlatNode, Integer> assignLabels(FlatMethod fm) {
1311 HashSet tovisit=new HashSet();
1312 HashSet visited=new HashSet();
1314 Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
1315 tovisit.add(fm.getNext(0));
1317 /*Assign labels first. A node needs a label if the previous
1318 * node has two exits or this node is a join point. */
1320 while(!tovisit.isEmpty()) {
1321 FlatNode fn=(FlatNode)tovisit.iterator().next();
1324 for(int i=0;i<fn.numNext();i++) {
1325 FlatNode nn=fn.getNext(i);
1327 //1) Edge >1 of node
1328 nodetolabel.put(nn,new Integer(labelindex++));
1330 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1334 nodetolabel.put(nn,new Integer(labelindex++));
1342 /** Generate text string that corresponds to the TempDescriptor td. */
1343 private String generateTemp(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1344 MethodDescriptor md=fm.getMethod();
1345 TaskDescriptor task=fm.getTask();
1346 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1348 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1349 return td.getSafeSymbol();
1352 if (objecttemps.isLocalPtr(td)) {
1353 return localsprefix+"."+td.getSafeSymbol();
1356 if (objecttemps.isParamPtr(td)) {
1357 return paramsprefix+"->"+td.getSafeSymbol();
1362 private void generateFlatNode(FlatMethod fm, LocalityBinding lb, FlatNode fn, PrintWriter output) {
1364 case FKind.FlatAtomicEnterNode:
1365 generateFlatAtomicEnterNode(fm, lb, (FlatAtomicEnterNode) fn, output);
1367 case FKind.FlatAtomicExitNode:
1368 generateFlatAtomicExitNode(fm, lb, (FlatAtomicExitNode) fn, output);
1370 case FKind.FlatGlobalConvNode:
1371 generateFlatGlobalConvNode(fm, lb, (FlatGlobalConvNode) fn, output);
1373 case FKind.FlatTagDeclaration:
1374 generateFlatTagDeclaration(fm, lb, (FlatTagDeclaration) fn,output);
1376 case FKind.FlatCall:
1377 generateFlatCall(fm, lb, (FlatCall) fn,output);
1379 case FKind.FlatFieldNode:
1380 generateFlatFieldNode(fm, lb, (FlatFieldNode) fn,output);
1382 case FKind.FlatElementNode:
1383 generateFlatElementNode(fm, lb, (FlatElementNode) fn,output);
1385 case FKind.FlatSetElementNode:
1386 generateFlatSetElementNode(fm, lb, (FlatSetElementNode) fn,output);
1388 case FKind.FlatSetFieldNode:
1389 generateFlatSetFieldNode(fm, lb, (FlatSetFieldNode) fn,output);
1392 generateFlatNew(fm, lb, (FlatNew) fn,output);
1394 case FKind.FlatOpNode:
1395 generateFlatOpNode(fm, lb, (FlatOpNode) fn,output);
1397 case FKind.FlatCastNode:
1398 generateFlatCastNode(fm, lb, (FlatCastNode) fn,output);
1400 case FKind.FlatLiteralNode:
1401 generateFlatLiteralNode(fm, lb, (FlatLiteralNode) fn,output);
1403 case FKind.FlatReturnNode:
1404 generateFlatReturnNode(fm, lb, (FlatReturnNode) fn,output);
1407 output.println("/* nop */");
1409 case FKind.FlatBackEdge:
1410 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1411 if(state.DSM&&locality.getAtomic(lb).get(fn).intValue()>0) {
1412 output.println("checkcollect2(&"+localsprefix+",trans);");
1414 output.println("checkcollect(&"+localsprefix+");");
1416 output.println("/* nop */");
1418 case FKind.FlatCheckNode:
1419 generateFlatCheckNode(fm, lb, (FlatCheckNode) fn, output);
1421 case FKind.FlatFlagActionNode:
1422 generateFlatFlagActionNode(fm, lb, (FlatFlagActionNode) fn, output);
1424 case FKind.FlatPrefetchNode:
1425 generateFlatPrefetchNode(fm,lb, (FlatPrefetchNode) fn, output);
1431 public void generateFlatPrefetchNode(FlatMethod fm, LocalityBinding lb, FlatPrefetchNode fpn, PrintWriter output) {
1432 short[] arrayfields = null;
1433 Vector fieldoffset = new Vector();
1434 Vector endoffset = new Vector();
1435 Vector oids = new Vector();
1436 short offsetcount = 0;
1437 int tuplecount = 0; //Keeps track of number of prefetch tuples that need to be generated
1440 if (state.PREFETCH) {
1441 output.println("/* prefetch */");
1442 output.println("; /* empty statement to avoid compiler error */");
1443 Iterator it = fpn.hspp.iterator();
1444 String oidlist = new String();
1445 while(it.hasNext()) {
1446 PrefetchPair pp = (PrefetchPair) it.next();
1447 Integer statusbase = locality.getNodePreTempInfo(lb,fpn).get(pp.base);
1448 /* Find prefetches that can generate oid */
1449 if(statusbase == LocalityAnalysis.GLOBAL) {
1450 if(locality.getAtomic(lb).get(fpn).intValue()>0) { /* Inside transaction */
1451 generateInsideTransCode(fm,lb,output, pp,oids,fieldoffset,endoffset,tuplecount);
1452 } else {/* Outside Transaction */
1453 generateOutsideTransCode(fm,lb,pp,oids,fieldoffset,endoffset,tuplecount);
1456 } else if(statusbase == LocalityAnalysis.LOCAL) {
1457 generateLocalTransCode(fm,lb,pp,oids,fieldoffset,endoffset,tuplecount);
1463 /*Create C code for numtuples */
1464 output.println(" int numtuples_" + count + " = " + tuplecount + ";");
1466 /*Create C code for oid array */
1467 output.print(" unsigned int oidarray_" + count + "[] = {");
1468 boolean needcomma=false;
1469 it = oids.iterator();
1470 while(it.hasNext()) {
1473 output.print(it.next());
1476 output.println("};");
1478 /*Create C code for endoffset values */
1479 output.print(" unsigned short endoffsetarry_" + count +"[] = {");
1481 it = endoffset.iterator();
1482 while(it.hasNext()) {
1485 output.print(it.next());
1488 output.println("};");
1490 /*Create C code for Field Offset Values */
1491 output.print(" short fieldarry_" + count +"[] = {");
1493 it = fieldoffset.iterator();
1494 while(it.hasNext()) {
1497 output.print(it.next());
1500 output.println("};");
1501 /* make the prefetch call to Runtime */
1502 output.println(" prefetch((int) numtuples_"+count+ ", oidarray_"+count+ ", endoffsetarry_"+
1503 count+", fieldarry_"+count+");");
1507 /* Free heap memory */
1513 public void generateInsideTransCode(FlatMethod fm, LocalityBinding lb,PrintWriter output,PrefetchPair pp,Vector oids, Vector fieldoffset,Vector endoffset, int tuplecount){
1515 short offsetcount = 0;
1516 String test = new String();
1518 Object newdesc = pp.desc.get(0);
1519 if(newdesc instanceof FieldDescriptor) {
1520 FieldDescriptor fd = (FieldDescriptor)newdesc;
1521 String oid = new String("(unsigned int) (" +
1522 generateTemp(fm, pp.base, lb) + " != NULL ? " +
1523 generateTemp(fm, pp.base, lb) + "->" + ((FieldDescriptor)fd).getSafeSymbol() +
1527 IndexDescriptor id = (IndexDescriptor)newdesc;
1528 String tstlbl = new String();
1529 for(i=0; i<id.tddesc.size(); i++) {
1530 tstlbl += generateTemp(fm, id.getTempDescAt(i), lb) + "+";
1532 tstlbl += id.offset.toString();
1534 TypeDescriptor elementtype = pp.base.getType().dereference();
1536 if (elementtype.isArray()||elementtype.isClass())
1539 type=elementtype.getSafeSymbol()+" ";
1541 String oid = new String("(unsigned int) (" + generateTemp(fm, pp.base, lb) + " != NULL ? " +
1542 "((" + tstlbl+"< 0 || "+tstlbl+" >= "+ generateTemp(fm, pp.base, lb) + "->___length___) ? 0 :"+
1543 "((" + type + "*)(((char *) &("+ generateTemp(fm, pp.base, lb)+ "->___length___))+sizeof(int)))["+tstlbl+"]) : 0)");
1547 for(i = 1; i < pp.desc.size(); i++) {
1548 TypeDescriptor newtd;
1550 String newfieldoffset;
1551 Object desc = pp.getDescAt(i);
1553 if(desc instanceof FieldDescriptor) {
1554 Object prevdesc = pp.getDescAt(i-1);
1555 if(prevdesc instanceof IndexDescriptor){
1557 newtd = pp.base.getType();
1558 cd = newtd.getClassDesc();
1560 //FIXME currently handles one dimensional arrays
1561 newtd = ((FieldDescriptor)pp.getDescAt(i-2)).getType();
1562 cd = newtd.getClassDesc();
1564 newfieldoffset = new String("(unsigned int)(&(((struct "+ cd.getSafeSymbol() +" *)0)->"+
1565 ((FieldDescriptor)desc).getSafeSymbol()+ "))");
1567 newtd = ((FieldDescriptor)pp.getDescAt(i-1)).getType();
1568 newfieldoffset = new String("(unsigned int)(&(((struct "+ newtd.getSafeSymbol()+" *)0)->"+
1569 ((FieldDescriptor)desc).getSafeSymbol()+ "))");
1571 fieldoffset.add(newfieldoffset);
1573 String tstlbl = new String();
1574 for(j = 0; j < ((IndexDescriptor)desc).tddesc.size(); j++) {
1575 tstlbl += generateTemp(fm, ((IndexDescriptor)desc).getTempDescAt(j), lb) + "+";
1577 tstlbl += ((IndexDescriptor)desc).offset.toString();
1578 newfieldoffset = new String(tstlbl);
1579 fieldoffset.add(newfieldoffset);
1582 if(tuplecount > 0) {
1583 int tmp = (int) ((Short)(endoffset.get(tuplecount-1))).shortValue() + (int) offsetcount;
1584 short endoffsetval = (short) tmp;
1585 endoffset.add(endoffsetval);
1587 endoffset.add(offsetcount);
1592 public void generateOutsideTransCode(FlatMethod fm, LocalityBinding lb,PrefetchPair pp, Vector oids, Vector fieldoffset, Vector endoffset, int tuplecount) {
1594 short offsetcount = 0;
1596 String oid = new String(" (unsigned int) (" + generateTemp(fm, pp.base, lb)+ ")");
1598 for(i = 0; i < pp.desc.size(); i++) {
1599 TypeDescriptor newtd;
1601 String newfieldoffset;
1602 Object desc = pp.getDescAt(i);
1604 if(desc instanceof FieldDescriptor) {
1606 newtd = pp.base.getType();
1607 newfieldoffset = new String("(unsigned int)(&(((struct "+ newtd.getSafeSymbol()+" *)0)->"+
1608 ((FieldDescriptor)desc).getSafeSymbol()+ "))");
1610 Object prevdesc = pp.getDescAt(i-1);
1611 if(prevdesc instanceof IndexDescriptor){
1613 newtd = pp.base.getType();
1614 cd = newtd.getClassDesc();
1616 //FIXME currently handles one dimensional arrays
1617 newtd = ((FieldDescriptor)pp.getDescAt(i-2)).getType();
1618 cd = newtd.getClassDesc();
1620 newfieldoffset = new String("(unsigned int)(&(((struct "+ cd.getSafeSymbol() +" *)0)->"+
1621 ((FieldDescriptor)desc).getSafeSymbol()+ "))");
1623 newtd = ((FieldDescriptor)pp.getDescAt(i-1)).getType();
1624 newfieldoffset = new String("(unsigned int)(&(((struct "+ newtd.getSafeSymbol()+" *)0)->"+
1625 ((FieldDescriptor)desc).getSafeSymbol()+ "))");
1629 String tstlbl = new String();
1630 for(j = 0; j < ((IndexDescriptor)desc).tddesc.size(); j++) {
1631 tstlbl += generateTemp(fm, ((IndexDescriptor)desc).getTempDescAt(j), lb) + "+";
1633 tstlbl += ((IndexDescriptor)desc).offset.toString();
1634 newfieldoffset = new String(tstlbl);
1636 fieldoffset.add(newfieldoffset);
1638 if(tuplecount > 0) {
1639 int tmp = (int) ((Short)(endoffset.get(tuplecount-1))).shortValue() + (int) offsetcount;
1640 short endoffsetval = (short) tmp;
1641 endoffset.add(endoffsetval);
1643 endoffset.add(offsetcount);
1647 public void generateLocalTransCode(FlatMethod fm, LocalityBinding lb,PrefetchPair pp,Vector oids, Vector fieldoffset,Vector endoffset, int tuplecount) {
1649 short offsetcount = 0;
1651 Vector prefix = new Vector();
1652 prefix.add(generateTemp(fm,pp.base,lb));
1653 String tstlbl = new String("(" + prefix.get(0) + " != NULL ");
1654 for (i = 0; i < pp.desc.size(); i++) {
1655 Object newdesc = pp.desc.get(i);
1656 if(newdesc instanceof FieldDescriptor) {
1657 FieldDescriptor fd = (FieldDescriptor) newdesc;
1659 /* Field descriptor is global */
1660 String oid = new String(" (unsigned int) (");
1662 for(j = 0; j < prefix.size(); j++) {
1663 tstlbl += prefix.get(j) + "->";
1665 tstlbl += fd.getSafeSymbol() + ": NULL";
1666 oid += tstlbl+ " )";
1668 for(j = i+1; j < pp.desc.size(); j++) {
1669 TypeDescriptor newtd;
1670 String newfieldoffset;
1671 Object desc = pp.getDescAt(j);
1673 if(desc instanceof FieldDescriptor) {
1674 Object prevdesc = pp.getDescAt(j-1);
1675 if(prevdesc instanceof IndexDescriptor){
1676 //FIXME currently handles one dimensional arrays
1677 newtd = ((FieldDescriptor)pp.getDescAt(j-2)).getType();
1679 newtd = ((FieldDescriptor) pp.getDescAt(j-1)).getType();
1681 newfieldoffset = new String("(unsigned int)(&(((struct "+ newtd.getSafeSymbol()+" *)0)->"+
1682 ((FieldDescriptor)desc).getSafeSymbol()+ "))");
1684 String indexlbl = new String();
1685 for(k = 0; k < ((IndexDescriptor)desc).tddesc.size(); k++) {
1686 indexlbl += generateTemp(fm, ((IndexDescriptor)desc).getTempDescAt(k), lb) + "+";
1688 indexlbl += ((IndexDescriptor)desc).offset.toString();
1689 newfieldoffset = new String(indexlbl);
1691 fieldoffset.add(newfieldoffset);
1693 if(tuplecount > 0) {
1694 int tmp = (int) ((Short)(endoffset.get(tuplecount-1))).shortValue() + (int) offsetcount;
1695 short endoffsetval = (short) tmp;
1696 endoffset.add(endoffsetval);
1698 endoffset.add(offsetcount);
1701 break; //break from outer for loop
1704 for(j = 0; j < prefix.size(); j++) {
1705 tstlbl += prefix.get(j) + "->";
1707 prefix.add(fd.getSafeSymbol());
1708 tstlbl += fd.getSafeSymbol() + " != NULL";
1710 } else { /* if Index descriptor */
1711 String indexstring = new String();
1712 IndexDescriptor id = (IndexDescriptor) newdesc;
1714 indexstring = generateTemp(fm, pp.base, lb);
1716 indexstring = ((FieldDescriptor)pp.getDescAt(i-1)).getSafeSymbol();
1719 for(j = 0; j < prefix.size(); j++) {
1720 tstlbl += prefix.get(j) + "[";
1723 for(j = 0; j < id.tddesc.size(); j++) {
1724 tstlbl += generateTemp(fm, id.getTempDescAt(j), lb) + "+";
1725 indexstring += generateTemp(fm,id.getTempDescAt(j), lb) + "+";
1727 tstlbl += id.offset.toString()+ "]";
1728 indexstring += id.offset.toString()+ "]";
1729 prefix. removeElementAt(prefix.size() -1);
1730 prefix.add(indexstring);
1731 tstlbl += " != NULL";
1736 public void generateFlatGlobalConvNode(FlatMethod fm, LocalityBinding lb, FlatGlobalConvNode fgcn, PrintWriter output) {
1737 if (lb!=fgcn.getLocality())
1739 /* Have to generate flat globalconv */
1740 if (fgcn.getMakePtr()) {
1741 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)transRead(trans, (unsigned int) "+generateTemp(fm, fgcn.getSrc(),lb)+");");
1743 /* Need to convert to OID */
1744 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)COMPOID("+generateTemp(fm, fgcn.getSrc(),lb)+");");
1748 public void generateFlatAtomicEnterNode(FlatMethod fm, LocalityBinding lb, FlatAtomicEnterNode faen, PrintWriter output) {
1749 /* Check to see if we need to generate code for this atomic */
1750 if (locality.getAtomic(lb).get(faen.getPrev(0)).intValue()>0)
1752 /* Backup the temps. */
1753 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1754 TempDescriptor tmp=tmpit.next();
1755 output.println(generateTemp(fm, backuptable.get(tmp),lb)+"="+generateTemp(fm,tmp,lb)+";");
1757 output.println("goto transstart"+faen.getIdentifier()+";");
1759 /******* Print code to retry aborted transaction *******/
1760 output.println("transretry"+faen.getIdentifier()+":");
1763 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1764 TempDescriptor tmp=tmpit.next();
1765 output.println(generateTemp(fm, tmp,lb)+"="+generateTemp(fm,backuptable.get(tmp),lb)+";");
1768 /********* Need to revert local object store ********/
1769 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1771 output.println("while ("+revertptr+") {");
1772 output.println("struct ___Object___ * tmpptr;");
1773 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1774 output.println("REVERT_OBJ("+revertptr+");");
1775 output.println(revertptr+"=tmpptr;");
1776 output.println("}");
1778 /******* Tell the runtime to start the transaction *******/
1780 output.println("transstart"+faen.getIdentifier()+":");
1781 output.println("trans=transStart();");
1784 public void generateFlatAtomicExitNode(FlatMethod fm, LocalityBinding lb, FlatAtomicExitNode faen, PrintWriter output) {
1785 /* Check to see if we need to generate code for this atomic */
1786 if (locality.getAtomic(lb).get(faen).intValue()>0)
1788 //store the revert list before we lose the transaction object
1789 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1790 output.println(revertptr+"=trans->revertlist;");
1791 output.println("if (transCommit(trans)) {");
1792 /* Transaction aborts if it returns true */
1793 output.println("goto transretry"+faen.getAtomicEnter().getIdentifier()+";");
1794 output.println("} else {");
1795 /* Need to commit local object store */
1796 output.println("while ("+revertptr+") {");
1797 output.println("struct ___Object___ * tmpptr;");
1798 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1799 output.println("COMMIT_OBJ("+revertptr+");");
1800 output.println(revertptr+"=tmpptr;");
1801 output.println("}");
1802 output.println("}");
1805 private void generateFlatCheckNode(FlatMethod fm, LocalityBinding lb, FlatCheckNode fcn, PrintWriter output) {
1806 if (state.CONSCHECK) {
1807 String specname=fcn.getSpec();
1808 String varname="repairstate___";
1809 output.println("{");
1810 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1812 TempDescriptor[] temps=fcn.getTemps();
1813 String[] vars=fcn.getVars();
1814 for(int i=0;i<temps.length;i++) {
1815 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i],lb)+";");
1818 output.println("if (doanalysis"+specname+"("+varname+")) {");
1819 output.println("free"+specname+"_state("+varname+");");
1820 output.println("} else {");
1821 output.println("/* Bad invariant */");
1822 output.println("free"+specname+"_state("+varname+");");
1823 output.println("abort_task();");
1824 output.println("}");
1825 output.println("}");
1829 private void generateFlatCall(FlatMethod fm, LocalityBinding lb, FlatCall fc, PrintWriter output) {
1830 MethodDescriptor md=fc.getMethod();
1831 ParamsObject objectparams=(ParamsObject)paramstable.get(state.DSM?locality.getBinding(lb, fc):md);
1832 ClassDescriptor cn=md.getClassDesc();
1833 output.println("{");
1834 if (GENERATEPRECISEGC) {
1836 LocalityBinding fclb=locality.getBinding(lb, fc);
1837 output.print(" struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1839 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1841 output.print(objectparams.numPointers());
1842 output.print(", & "+localsprefix);
1843 if (fc.getThis()!=null) {
1845 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis(),lb));
1847 for(int i=0;i<fc.numArgs();i++) {
1848 Descriptor var=md.getParameter(i);
1849 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1850 if (objectparams.isParamPtr(paramtemp)) {
1851 TempDescriptor targ=fc.getArg(i);
1853 TypeDescriptor td=md.getParamType(i);
1855 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1857 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1860 output.println("};");
1865 if (fc.getReturnTemp()!=null)
1866 output.print(generateTemp(fm,fc.getReturnTemp(),lb)+"=");
1868 /* Do we need to do virtual dispatch? */
1869 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
1872 LocalityBinding fclb=locality.getBinding(lb, fc);
1873 output.print(cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1875 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1880 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1881 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1883 output.print(md.getReturnType().getSafeSymbol()+" ");
1884 output.print("(*)(");
1886 boolean printcomma=false;
1887 if (GENERATEPRECISEGC) {
1889 LocalityBinding fclb=locality.getBinding(lb, fc);
1890 output.print("struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1892 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1896 for(int i=0;i<objectparams.numPrimitives();i++) {
1897 TempDescriptor temp=objectparams.getPrimitive(i);
1901 if (temp.getType().isClass()||temp.getType().isArray())
1902 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
1904 output.print(temp.getType().getSafeSymbol());
1908 LocalityBinding fclb=locality.getBinding(lb, fc);
1909 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getLocalityNumber(fclb)+"])");
1911 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
1915 boolean needcomma=false;
1916 if (GENERATEPRECISEGC) {
1917 output.print("&__parameterlist__");
1921 if (state.DSM&&locality.getBinding(lb,fc).isAtomic()) {
1924 output.print("trans");
1928 if (!GENERATEPRECISEGC) {
1929 if (fc.getThis()!=null) {
1930 TypeDescriptor ptd=md.getThis().getType();
1933 if (ptd.isClass()&&!ptd.isArray())
1934 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1935 output.print(generateTemp(fm,fc.getThis(),lb));
1940 for(int i=0;i<fc.numArgs();i++) {
1941 Descriptor var=md.getParameter(i);
1942 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1943 if (objectparams.isParamPrim(paramtemp)) {
1944 TempDescriptor targ=fc.getArg(i);
1948 TypeDescriptor ptd=md.getParamType(i);
1949 if (ptd.isClass()&&!ptd.isArray())
1950 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1951 output.print(generateTemp(fm, targ,lb));
1955 output.println(");");
1956 output.println(" }");
1959 private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
1960 Set subclasses=typeutil.getSubClasses(thiscd);
1961 if (subclasses==null)
1963 for(Iterator classit=subclasses.iterator();classit.hasNext();) {
1964 ClassDescriptor cd=(ClassDescriptor)classit.next();
1965 Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
1966 for(Iterator matchit=possiblematches.iterator();matchit.hasNext();) {
1967 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
1968 if (md.matches(matchmd))
1975 private void generateFlatFieldNode(FlatMethod fm, LocalityBinding lb, FlatFieldNode ffn, PrintWriter output) {
1977 Integer status=locality.getNodePreTempInfo(lb,ffn).get(ffn.getSrc());
1978 if (status==LocalityAnalysis.GLOBAL) {
1979 String field=ffn.getField().getSafeSymbol();
1980 String src=generateTemp(fm, ffn.getSrc(),lb);
1981 String dst=generateTemp(fm, ffn.getDst(),lb);
1983 if (ffn.getField().getType().isPtr()) {
1985 //TODO: Uncomment this when we have runtime support
1986 //if (ffn.getSrc()==ffn.getDst()) {
1987 //output.println("{");
1988 //output.println("void * temp="+src+";");
1989 //output.println("if (temp&0x1) {");
1990 //output.println("temp=(void *) transRead(trans, (unsigned int) temp);");
1991 //output.println(src+"->"+field+"="+temp+";");
1992 //output.println("}");
1993 //output.println(dst+"=temp;");
1994 //output.println("}");
1996 output.println(dst+"="+ src +"->"+field+ ";");
1997 //output.println("if ("+dst+"&0x1) {");
1998 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1999 //output.println(src+"->"+field+"="+src+"->"+field+";");
2000 //output.println("}");
2003 output.println(dst+"="+ src+"->"+field+";");
2005 } else if (status==LocalityAnalysis.LOCAL) {
2006 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
2007 } else if (status==LocalityAnalysis.EITHER) {
2008 //Code is reading from a null pointer
2009 output.println("if ("+generateTemp(fm, ffn.getSrc(),lb)+") {");
2010 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
2011 //This should throw a suitable null pointer error
2012 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
2014 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
2016 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
2020 private void generateFlatSetFieldNode(FlatMethod fm, LocalityBinding lb, FlatSetFieldNode fsfn, PrintWriter output) {
2021 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
2022 throw new Error("Can't set array length");
2023 if (state.DSM && locality.getAtomic(lb).get(fsfn).intValue()>0) {
2024 Integer statussrc=locality.getNodePreTempInfo(lb,fsfn).get(fsfn.getSrc());
2025 Integer statusdst=locality.getNodeTempInfo(lb).get(fsfn).get(fsfn.getDst());
2026 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
2028 String src=generateTemp(fm,fsfn.getSrc(),lb);
2029 String dst=generateTemp(fm,fsfn.getDst(),lb);
2031 output.println("{");
2032 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
2034 if (statusdst.equals(LocalityAnalysis.GLOBAL)) {
2037 output.println("*((unsigned int *)&("+dst+"->___localcopy___))|=DIRTY;");
2039 output.println("*((unsigned int *)&("+glbdst+"->"+ fsfn.getField().getSafeSymbol()+"))=srcoid;");
2041 output.println(glbdst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
2042 } else if (statusdst.equals(LocalityAnalysis.LOCAL)) {
2043 /** Check if we need to copy */
2044 output.println("if(!"+dst+"->"+localcopystr+") {");
2045 /* Link object into list */
2046 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2047 output.println(revertptr+"=trans->revertlist;");
2048 if (GENERATEPRECISEGC)
2049 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
2051 output.println("COPY_OBJ("+dst+");");
2052 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
2053 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
2054 output.println("}");
2056 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
2058 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
2059 } else if (statusdst.equals(LocalityAnalysis.EITHER)) {
2060 //writing to a null...bad
2061 output.println("if ("+dst+") {");
2062 output.println("printf(\"BIG ERROR 2\\n\");exit(-1);}");
2064 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
2066 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
2069 output.println("}");
2072 output.println(generateTemp(fm, fsfn.getDst(),lb)+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc(),lb)+";");
2076 private void generateFlatElementNode(FlatMethod fm, LocalityBinding lb, FlatElementNode fen, PrintWriter output) {
2077 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
2080 if (elementtype.isArray()||elementtype.isClass())
2083 type=elementtype.getSafeSymbol()+" ";
2085 if (fen.needsBoundsCheck()) {
2086 output.println("if ("+generateTemp(fm, fen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fen.getIndex(),lb)+" >= "+generateTemp(fm,fen.getSrc(),lb) + "->___length___)");
2087 output.println("failedboundschk();");
2090 Integer status=locality.getNodePreTempInfo(lb,fen).get(fen.getSrc());
2091 if (status==LocalityAnalysis.GLOBAL) {
2092 String dst=generateTemp(fm, fen.getDst(),lb);
2094 if (elementtype.isPtr()) {
2095 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2096 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
2098 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2100 } else if (status==LocalityAnalysis.LOCAL) {
2101 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2102 } else if (status==LocalityAnalysis.EITHER) {
2103 //Code is reading from a null pointer
2104 output.println("if ("+generateTemp(fm, fen.getSrc(),lb)+") {");
2105 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
2106 //This should throw a suitable null pointer error
2107 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2109 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
2111 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2115 private void generateFlatSetElementNode(FlatMethod fm, LocalityBinding lb, FlatSetElementNode fsen, PrintWriter output) {
2116 //TODO: need dynamic check to make sure this assignment is actually legal
2117 //Because Object[] could actually be something more specific...ie. Integer[]
2119 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2122 if (elementtype.isArray()||elementtype.isClass())
2125 type=elementtype.getSafeSymbol()+" ";
2128 if (fsen.needsBoundsCheck()) {
2129 output.println("if ("+generateTemp(fm, fsen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fsen.getIndex(),lb)+" >= "+generateTemp(fm,fsen.getDst(),lb) + "->___length___)");
2130 output.println("failedboundschk();");
2133 if (state.DSM && locality.getAtomic(lb).get(fsen).intValue()>0) {
2134 Integer statussrc=locality.getNodePreTempInfo(lb,fsen).get(fsen.getSrc());
2135 Integer statusdst=locality.getNodePreTempInfo(lb,fsen).get(fsen.getDst());
2136 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
2137 boolean dstglobal=statusdst==LocalityAnalysis.GLOBAL;
2138 boolean dstlocal=statusdst==LocalityAnalysis.LOCAL;
2141 output.println("*((unsigned int *)&("+generateTemp(fm,fsen.getDst(),lb)+"->___localcopy___))|=DIRTY;");
2142 } else if (dstlocal) {
2143 /** Check if we need to copy */
2144 String dst=generateTemp(fm, fsen.getDst(),lb);
2145 output.println("if(!"+dst+"->"+localcopystr+") {");
2146 /* Link object into list */
2147 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2148 output.println(revertptr+"=trans->revertlist;");
2149 if (GENERATEPRECISEGC)
2150 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
2152 output.println("COPY_OBJ("+dst+");");
2153 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
2155 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
2156 output.println("}");
2157 } else throw new Error("Unknown array type");
2159 output.println("{");
2160 String src=generateTemp(fm, fsen.getSrc(), lb);
2161 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
2162 output.println("((int*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]=srcoid;");
2163 output.println("}");
2165 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2168 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2171 private void generateFlatNew(FlatMethod fm, LocalityBinding lb, FlatNew fn, PrintWriter output) {
2172 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2173 //Stash pointer in case of GC
2174 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2175 output.println(revertptr+"=trans->revertlist;");
2177 if (fn.getType().isArray()) {
2178 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2179 if (fn.isGlobal()) {
2180 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarrayglobal(trans, "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2181 } else if (GENERATEPRECISEGC) {
2182 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray(&"+localsprefix+", "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2184 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2187 if (fn.isGlobal()) {
2188 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newglobal(trans, "+fn.getType().getClassDesc().getId()+");");
2189 } else if (GENERATEPRECISEGC) {
2190 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new(&"+localsprefix+", "+fn.getType().getClassDesc().getId()+");");
2192 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2195 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2196 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2197 output.println("trans->revertlist="+revertptr+";");
2201 private void generateFlatTagDeclaration(FlatMethod fm, LocalityBinding lb, FlatTagDeclaration fn, PrintWriter output) {
2202 if (GENERATEPRECISEGC) {
2203 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag(&"+localsprefix+", "+state.getTagId(fn.getType())+");");
2205 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag("+state.getTagId(fn.getType())+");");
2209 private void generateFlatOpNode(FlatMethod fm, LocalityBinding lb, FlatOpNode fon, PrintWriter output) {
2210 if (fon.getRight()!=null) {
2211 if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2212 if (fon.getLeft().getType().isLong())
2213 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2215 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned int)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2218 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+fon.getOp().toString()+generateTemp(fm,fon.getRight(),lb)+";");
2219 } else if (fon.getOp().getOp()==Operation.ASSIGN)
2220 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2221 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2222 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2223 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2224 output.println(generateTemp(fm, fon.getDest(),lb)+" = -"+generateTemp(fm, fon.getLeft(),lb)+";");
2225 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2226 output.println(generateTemp(fm, fon.getDest(),lb)+" = !"+generateTemp(fm, fon.getLeft(),lb)+";");
2227 else if (fon.getOp().getOp()==Operation.COMP)
2228 output.println(generateTemp(fm, fon.getDest(),lb)+" = ~"+generateTemp(fm, fon.getLeft(),lb)+";");
2229 else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2230 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+"->fses==NULL;");
2232 output.println(generateTemp(fm, fon.getDest(),lb)+fon.getOp().toString()+generateTemp(fm, fon.getLeft(),lb)+";");
2235 private void generateFlatCastNode(FlatMethod fm, LocalityBinding lb, FlatCastNode fcn, PrintWriter output) {
2236 /* TODO: Do type check here */
2237 if (fcn.getType().isArray()) {
2239 } else if (fcn.getType().isClass())
2240 output.println(generateTemp(fm,fcn.getDst(),lb)+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc(),lb)+";");
2242 output.println(generateTemp(fm,fcn.getDst(),lb)+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc(),lb)+";");
2245 private void generateFlatLiteralNode(FlatMethod fm, LocalityBinding lb, FlatLiteralNode fln, PrintWriter output) {
2246 if (fln.getValue()==null)
2247 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2248 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2249 if (GENERATEPRECISEGC) {
2250 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2251 //Stash pointer in case of GC
2252 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2253 output.println(revertptr+"=trans->revertlist;");
2255 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(&"+localsprefix+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2256 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2257 //Stash pointer in case of GC
2258 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2259 output.println("trans->revertlist="+revertptr+";");
2262 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2264 } else if (fln.getType().isBoolean()) {
2265 if (((Boolean)fln.getValue()).booleanValue())
2266 output.println(generateTemp(fm, fln.getDst(),lb)+"=1;");
2268 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2269 } else if (fln.getType().isChar()) {
2270 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2271 output.println(generateTemp(fm, fln.getDst(),lb)+"='"+st+"';");
2272 } else if (fln.getType().isLong()) {
2273 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+"LL;");
2275 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+";");
2278 private void generateFlatReturnNode(FlatMethod fm, LocalityBinding lb, FlatReturnNode frn, PrintWriter output) {
2279 if (frn.getReturnTemp()!=null) {
2280 if (frn.getReturnTemp().getType().isPtr())
2281 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2283 output.println("return "+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2285 output.println("return;");
2288 private void generateFlatCondBranch(FlatMethod fm, LocalityBinding lb, FlatCondBranch fcb, String label, PrintWriter output) {
2289 output.println("if (!"+generateTemp(fm, fcb.getTest(),lb)+") goto "+label+";");
2292 /** This method generates header information for the method or
2293 * task referenced by the Descriptor des. */
2295 private void generateHeader(FlatMethod fm, LocalityBinding lb, Descriptor des, PrintWriter output) {
2297 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:des);
2298 MethodDescriptor md=null;
2299 TaskDescriptor task=null;
2300 if (des instanceof MethodDescriptor)
2301 md=(MethodDescriptor) des;
2303 task=(TaskDescriptor) des;
2305 ClassDescriptor cn=md!=null?md.getClassDesc():null;
2307 if (md!=null&&md.getReturnType()!=null) {
2308 if (md.getReturnType().isClass()||md.getReturnType().isArray())
2309 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2311 output.print(md.getReturnType().getSafeSymbol()+" ");
2313 //catch the constructor case
2314 output.print("void ");
2317 output.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2319 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2321 output.print(task.getSafeSymbol()+"(");
2323 boolean printcomma=false;
2324 if (GENERATEPRECISEGC) {
2327 output.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2329 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2331 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2335 if (state.DSM&&lb.isAtomic()) {
2338 output.print("transrecord_t * trans");
2344 for(int i=0;i<objectparams.numPrimitives();i++) {
2345 TempDescriptor temp=objectparams.getPrimitive(i);
2349 if (temp.getType().isClass()||temp.getType().isArray())
2350 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2352 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2354 output.println(") {");
2355 } else if (!GENERATEPRECISEGC) {
2356 /* Imprecise Task */
2357 output.println("void * parameterarray[]) {");
2358 /* Unpack variables */
2359 for(int i=0;i<objectparams.numPrimitives();i++) {
2360 TempDescriptor temp=objectparams.getPrimitive(i);
2361 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2363 for(int i=0;i<fm.numTags();i++) {
2364 TempDescriptor temp=fm.getTag(i);
2365 int offset=i+objectparams.numPrimitives();
2366 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2369 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2370 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2371 } else output.println(") {");
2374 public void generateFlatFlagActionNode(FlatMethod fm, LocalityBinding lb, FlatFlagActionNode ffan, PrintWriter output) {
2375 output.println("/* FlatFlagActionNode */");
2378 /* Process tag changes */
2379 Relation tagsettable=new Relation();
2380 Relation tagcleartable=new Relation();
2382 Iterator tagsit=ffan.getTempTagPairs();
2383 while (tagsit.hasNext()) {
2384 TempTagPair ttp=(TempTagPair) tagsit.next();
2385 TempDescriptor objtmp=ttp.getTemp();
2386 TagDescriptor tag=ttp.getTag();
2387 TempDescriptor tagtmp=ttp.getTagTemp();
2388 boolean tagstatus=ffan.getTagChange(ttp);
2390 tagsettable.put(objtmp, tagtmp);
2392 tagcleartable.put(objtmp, tagtmp);
2397 Hashtable flagandtable=new Hashtable();
2398 Hashtable flagortable=new Hashtable();
2400 /* Process flag changes */
2401 Iterator flagsit=ffan.getTempFlagPairs();
2402 while(flagsit.hasNext()) {
2403 TempFlagPair tfp=(TempFlagPair)flagsit.next();
2404 TempDescriptor temp=tfp.getTemp();
2405 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2406 FlagDescriptor flag=tfp.getFlag();
2408 //Newly allocate objects that don't set any flags case
2409 if (flagortable.containsKey(temp)) {
2413 flagortable.put(temp,new Integer(mask));
2415 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2416 boolean flagstatus=ffan.getFlagChange(tfp);
2419 if (flagortable.containsKey(temp)) {
2420 mask=((Integer)flagortable.get(temp)).intValue();
2423 flagortable.put(temp,new Integer(mask));
2425 int mask=0xFFFFFFFF;
2426 if (flagandtable.containsKey(temp)) {
2427 mask=((Integer)flagandtable.get(temp)).intValue();
2429 mask&=(0xFFFFFFFF^flagid);
2430 flagandtable.put(temp,new Integer(mask));
2436 HashSet flagtagset=new HashSet();
2437 flagtagset.addAll(flagortable.keySet());
2438 flagtagset.addAll(flagandtable.keySet());
2439 flagtagset.addAll(tagsettable.keySet());
2440 flagtagset.addAll(tagcleartable.keySet());
2442 Iterator ftit=flagtagset.iterator();
2443 while(ftit.hasNext()) {
2444 TempDescriptor temp=(TempDescriptor)ftit.next();
2447 Set tagtmps=tagcleartable.get(temp);
2448 if (tagtmps!=null) {
2449 Iterator tagit=tagtmps.iterator();
2450 while(tagit.hasNext()) {
2451 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2452 if (GENERATEPRECISEGC)
2453 output.println("tagclear(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2455 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2459 tagtmps=tagsettable.get(temp);
2460 if (tagtmps!=null) {
2461 Iterator tagit=tagtmps.iterator();
2462 while(tagit.hasNext()) {
2463 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2464 if (GENERATEPRECISEGC)
2465 output.println("tagset(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2467 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp, lb)+", "+generateTemp(fm,tagtmp, lb)+");");
2472 int andmask=0xFFFFFFF;
2474 if (flagortable.containsKey(temp))
2475 ormask=((Integer)flagortable.get(temp)).intValue();
2476 if (flagandtable.containsKey(temp))
2477 andmask=((Integer)flagandtable.get(temp)).intValue();
2478 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2479 output.println("flagorandinit("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2481 output.println("flagorand("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2486 void generateOptionalHeader(PrintWriter headers) {
2489 headers.println("#include \"task.h\"\n\n");
2490 headers.println("#ifndef _OPTIONAL_STRUCT_");
2491 headers.println("#define _OPTIONAL_STRUCT_");
2493 //STRUCT PREDICATEMEMBER
2494 headers.println("struct predicatemember{");
2495 headers.println("int type;");
2496 headers.println("int numdnfterms;");
2497 headers.println("int * flags;");
2498 headers.println("int numtags;");
2499 headers.println("int * tags;\n};\n\n");
2501 //STRUCT OPTIONALTASKDESCRIPTOR
2502 headers.println("struct optionaltaskdescriptor{");
2503 headers.println("struct taskdescriptor * task;");
2504 headers.println("int index;");
2505 headers.println("int numenterflags;");
2506 headers.println("int * enterflags;");
2507 headers.println("int numpredicatemembers;");
2508 headers.println("struct predicatemember ** predicatememberarray;");
2509 headers.println("};\n\n");
2511 //STRUCT TASKFAILURE
2512 headers.println("struct taskfailure {");
2513 headers.println("struct taskdescriptor * task;");
2514 headers.println("int index;");
2515 headers.println("int numoptionaltaskdescriptors;");
2516 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2518 //STRUCT FSANALYSISWRAPPER
2519 headers.println("struct fsanalysiswrapper{");
2520 headers.println("int flags;");
2521 headers.println("int numtags;");
2522 headers.println("int * tags;");
2523 headers.println("int numtaskfailures;");
2524 headers.println("struct taskfailure ** taskfailurearray;");
2525 headers.println("int numoptionaltaskdescriptors;");
2526 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2528 //STRUCT CLASSANALYSISWRAPPER
2529 headers.println("struct classanalysiswrapper{");
2530 headers.println("int type;");
2531 headers.println("int numotd;");
2532 headers.println("struct optionaltaskdescriptor ** otdarray;");
2533 headers.println("int numfsanalysiswrappers;");
2534 headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
2536 headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
2538 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
2539 while(taskit.hasNext()) {
2540 TaskDescriptor td=(TaskDescriptor)taskit.next();
2541 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
2546 //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
2547 int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
2548 int predicateindex = 0;
2549 //iterate through the classes concerned by the predicate
2550 Set c_vard = predicate.vardescriptors;
2551 Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
2554 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext();){
2555 VarDescriptor vard = (VarDescriptor)vard_it.next();
2556 TypeDescriptor typed = vard.getType();
2558 //generate for flags
2559 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
2560 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2562 if (fen_hashset!=null){
2563 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext();){
2564 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
2566 DNFFlag dflag=fen.getDNF();
2567 numberterms+=dflag.size();
2569 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
2571 for(int j=0;j<dflag.size();j++) {
2573 output.println(",");
2574 Vector term=dflag.get(j);
2577 for(int k=0;k<term.size();k++) {
2578 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
2579 FlagDescriptor fd=dfa.getFlag();
2580 boolean negated=dfa.getNegated();
2581 int flagid=1<<((Integer)flags.get(fd)).intValue();
2586 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
2591 output.println("};\n");
2594 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
2595 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2598 for(int j=0;j<tagel.numTags();j++) {
2600 output.println(",");
2601 TempDescriptor tmp=tagel.getTemp(j);
2602 if (!slotnumber.containsKey(tmp)) {
2603 Integer slotint=new Integer(current_slot++);
2604 slotnumber.put(tmp,slotint);
2606 int slot=slotnumber.get(tmp).intValue();
2607 output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
2609 numtags = tagel.numTags();
2611 output.println("};");
2613 //store the result into a predicatemember struct
2614 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2615 output.println("/*type*/"+typed.getClassDesc().getId()+",");
2616 output.println("/* number of dnf terms */"+numberterms+",");
2617 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2618 output.println("/* number of tag */"+numtags+",");
2619 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2620 output.println("};\n");
2625 //generate an array that stores the entire predicate
2626 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2627 for( int j = 0; j<predicateindex; j++){
2628 if( j != predicateindex-1)output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2629 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2631 output.println("};\n");
2632 return predicateindex;
2636 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
2637 generateOptionalHeader(headers);
2639 output.println("#include \"optionalstruct.h\"\n\n");
2640 output.println("#include \"stdlib.h\"\n");
2642 HashSet processedcd = new HashSet();
2644 Enumeration e = safeexecution.keys();
2645 while (e.hasMoreElements()) {
2648 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
2649 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp);//will be used several times
2651 //Generate the struct of optionals
2652 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2653 numotd = c_otd.size();
2654 if(maxotd<numotd) maxotd = numotd;
2655 if( !c_otd.isEmpty() ){
2656 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2657 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2659 //generate the int arrays for the predicate
2660 Predicate predicate = otd.predicate;
2661 int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
2662 TreeSet<Integer> fsset=new TreeSet<Integer>();
2663 //iterate through possible FSes corresponding to
2664 //the state when entering
2666 for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext();){
2667 FlagState fs = (FlagState)fses.next();
2669 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2670 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2671 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2674 fsset.add(new Integer(flagid));
2675 //tag information not needed because tag
2676 //changes are not tolerated.
2679 output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2680 boolean needcomma=false;
2681 for(Iterator<Integer> it=fsset.iterator();it.hasNext();) {
2684 output.println(it.next());
2687 output.println("};\n");
2690 //generate optionaltaskdescriptor that actually
2691 //includes exit fses, predicate and the task
2693 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2694 output.println("&task_"+otd.td.getSafeSymbol()+",");
2695 output.println("/*index*/"+otd.getIndex()+",");
2696 output.println("/*number of enter flags*/"+fsset.size()+",");
2697 output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2698 output.println("/*number of members */"+predicateindex+",");
2699 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2700 output.println("};\n");
2704 // if there are no optionals, there is no need to build the rest of the struct
2706 output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
2707 c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2708 if( !c_otd.isEmpty() ){
2709 boolean needcomma=false;
2710 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2711 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2713 output.println(",");
2715 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2718 output.println("};\n");
2720 //get all the possible flagstates reachable by an object
2721 Hashtable hashtbtemp = safeexecution.get(cdtemp);
2723 TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
2724 fsts.addAll(hashtbtemp.keySet());
2725 for(Iterator fsit=fsts.iterator();fsit.hasNext();) {
2726 FlagState fs = (FlagState)fsit.next();
2729 //get the set of OptionalTaskDescriptors corresponding
2730 HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
2731 //iterate through the OptionalTaskDescriptors and
2732 //store the pointers to the optionals struct (see on
2733 //top) into an array
2735 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
2736 for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext();){
2737 OptionalTaskDescriptor mm = mos.next();
2739 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
2741 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2744 output.println("};\n");
2746 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
2749 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2750 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2751 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2755 //process tag information
2758 boolean first = true;
2759 Enumeration tag_enum = fs.getTags();
2760 output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2761 while(tag_enum.hasMoreElements()){
2763 TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
2767 output.println(", ");
2768 output.println("/*tagid*/"+state.getTagId(tagd));
2770 output.println("};");
2772 Set<TaskIndex> tiset=sa.getTaskIndex(fs);
2773 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2774 TaskIndex ti=itti.next();
2778 Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
2780 output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
2781 boolean needcomma=false;
2782 for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator();otdit.hasNext();) {
2783 OptionalTaskDescriptor otd=otdit.next();
2787 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2789 output.println("};");
2791 output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
2792 output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
2793 output.print(ti.getIndex()+", ");
2794 output.print(otdset.size()+", ");
2795 output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
2796 output.println("};");
2799 tiset=sa.getTaskIndex(fs);
2800 boolean needcomma=false;
2802 output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2803 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2804 TaskIndex ti=itti.next();
2805 if (ti.isRuntime()) {
2812 output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
2814 output.println("};\n");
2816 //Store the result in fsanalysiswrapper
2818 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
2819 output.println("/*flag*/"+flagid+",");
2820 output.println("/* number of tags*/"+tagcounter+",");
2821 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2822 output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
2823 output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2824 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
2825 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
2826 output.println("};\n");
2830 //Build the array of fsanalysiswrappers
2831 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
2832 boolean needcomma=false;
2833 for(int i = 0; i<fscounter; i++){
2834 if (needcomma) output.print(",");
2835 output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
2838 output.println("};");
2840 //Build the classanalysiswrapper referring to the previous array
2841 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
2842 output.println("/*type*/"+cdtemp.getId()+",");
2843 output.println("/*numotd*/"+numotd+",");
2844 output.println("otdarray"+cdtemp.getSafeSymbol()+",");
2845 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
2846 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
2847 processedcd.add(cdtemp);
2850 //build an array containing every classes for which code has been build
2851 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
2852 for(int i=0;i<state.numClasses();i++) {
2853 ClassDescriptor cn=cdarray[i];
2856 if (processedcd.contains(cn))
2857 output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
2859 output.print("NULL");
2861 output.println("};");
2863 output.println("#define MAXOTD "+maxotd);
2864 headers.println("#endif");
2867 public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
2868 Relation r=new Relation();
2869 for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator();otdit.hasNext();) {
2870 OptionalTaskDescriptor otd=otdit.next();
2871 TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
2875 LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
2876 for(Iterator it=r.keySet().iterator();it.hasNext();) {
2877 Set s=r.get(it.next());
2878 for(Iterator it2=s.iterator();it2.hasNext();) {
2879 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();