2 import IR.Tree.FlagExpressionNode;
3 import IR.Tree.DNFFlag;
4 import IR.Tree.DNFFlagAtom;
5 import IR.Tree.TagExpressionList;
10 import Analysis.TaskStateAnalysis.FlagState;
11 import Analysis.TaskStateAnalysis.FlagComparator;
12 import Analysis.TaskStateAnalysis.OptionalTaskDescriptor;
13 import Analysis.TaskStateAnalysis.Predicate;
14 import Analysis.TaskStateAnalysis.SafetyAnalysis;
15 import Analysis.TaskStateAnalysis.TaskIndex;
16 import Analysis.Locality.LocalityAnalysis;
17 import Analysis.Locality.LocalityBinding;
18 import Analysis.Prefetch.*;
20 public class BuildCode {
23 Hashtable paramstable;
28 String localsprefix="___locals___";
29 String paramsprefix="___params___";
30 String oidstr="___nextobject___";
31 String nextobjstr="___nextobject___";
32 String localcopystr="___localcopy___";
33 public static boolean GENERATEPRECISEGC=false;
34 public static String PREFIX="";
35 public static String arraytype="ArrayObject";
36 public static int flagcount = 0;
39 //private int maxtaskparams=0;
40 protected 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 protected void outputMethods(PrintWriter outmethod) {
306 outmethod.println("#include \"methodheaders.h\"");
307 outmethod.println("#include \"virtualtable.h\"");
308 outmethod.println("#include <runtime.h>");
310 outmethod.println("#include \"localobjects.h\"");
312 if(state.MULTICORE) {
313 outmethod.println("#include \"task.h\"");
315 if (state.THREAD||state.DSM)
316 outmethod.println("#include <thread.h>");
317 if (state.main!=null) {
318 outmethod.println("#include <string.h>");
320 if (state.CONSCHECK) {
321 outmethod.println("#include \"checkers.h\"");
323 //Store the sizes of classes & array elements
324 generateSizeArray(outmethod);
326 //Store table of supertypes
327 generateSuperTypeTable(outmethod);
329 //Store the layout of classes
330 generateLayoutStructs(outmethod);
332 /* Generate code for methods */
334 for(Iterator<LocalityBinding> lbit=locality.getLocalityBindings().iterator();lbit.hasNext();) {
335 LocalityBinding lb=lbit.next();
336 MethodDescriptor md=lb.getMethod();
337 FlatMethod fm=state.getMethodFlat(md);
338 if (!md.getModifiers().isNative()) {
339 generateFlatMethod(fm, lb, outmethod);
343 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
344 while(classit.hasNext()) {
345 ClassDescriptor cn=(ClassDescriptor)classit.next();
346 Iterator methodit=cn.getMethods();
347 while(methodit.hasNext()) {
348 /* Classify parameters */
349 MethodDescriptor md=(MethodDescriptor)methodit.next();
350 FlatMethod fm=state.getMethodFlat(md);
351 if (!md.getModifiers().isNative()) {
352 generateFlatMethod(fm, null, outmethod);
359 //private void outputStructs(PrintWriter outstructs) {
360 protected void outputStructs(PrintWriter outstructs) {
361 outstructs.println("#ifndef STRUCTDEFS_H");
362 outstructs.println("#define STRUCTDEFS_H");
363 outstructs.println("#include \"classdefs.h\"");
365 /* Output #defines that the runtime uses to determine type
366 * numbers for various objects it needs */
367 outstructs.println("#define MAXCOUNT "+maxcount);
369 LocalityBinding lb=new LocalityBinding(typeutil.getRun(), false);
370 lb.setGlobalThis(LocalityAnalysis.GLOBAL);
371 outstructs.println("#define RUNMETHOD "+virtualcalls.getLocalityNumber(lb));
374 outstructs.println("#define STRINGARRAYTYPE "+
375 (state.getArrayNumber(
376 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
378 outstructs.println("#define OBJECTARRAYTYPE "+
379 (state.getArrayNumber(
380 (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
383 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
384 outstructs.println("#define CHARARRAYTYPE "+
385 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
387 outstructs.println("#define BYTEARRAYTYPE "+
388 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
390 outstructs.println("#define BYTEARRAYARRAYTYPE "+
391 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
393 outstructs.println("#define NUMCLASSES "+state.numClasses());
395 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
396 outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
397 outstructs.println("#define TAGARRAYTYPE "+
398 (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
402 //private void outputClassDeclarations(PrintWriter outclassdefs) {
403 protected void outputClassDeclarations(PrintWriter outclassdefs) {
404 if (state.THREAD||state.DSM)
405 outclassdefs.println("#include <pthread.h>");
407 outclassdefs.println("#include \"optionalstruct.h\"");
408 outclassdefs.println("struct "+arraytype+";");
409 /* Start by declaring all structs */
410 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
411 while(it.hasNext()) {
412 ClassDescriptor cn=(ClassDescriptor)it.next();
413 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
415 outclassdefs.println("");
416 //Print out definition for array type
417 outclassdefs.println("struct "+arraytype+" {");
418 outclassdefs.println(" int type;");
420 outclassdefs.println(" pthread_t tid;");
421 outclassdefs.println(" void * lockentry;");
422 outclassdefs.println(" int lockcount;");
425 outclassdefs.println(" int flag;");
426 if(!state.MULTICORE) {
427 outclassdefs.println(" void * flagptr;");
429 outclassdefs.println(" int corenum;");
430 outclassdefs.println(" int flagptr;");
433 outclassdefs.println(" int numfses;");
434 outclassdefs.println(" int * fses;");
437 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs);
439 outclassdefs.println(" int ___length___;");
440 outclassdefs.println("};\n");
441 outclassdefs.println("extern int classsize[];");
442 outclassdefs.println("extern int hasflags[];");
443 outclassdefs.println("extern unsigned int * pointerarray[];");
444 outclassdefs.println("extern int supertypes[];");
447 /** Prints out definitions for generic task structures */
449 private void outputTaskTypes(PrintWriter outtask) {
450 outtask.println("#ifndef _TASK_H");
451 outtask.println("#define _TASK_H");
452 outtask.println("struct parameterdescriptor {");
453 outtask.println("int type;");
454 outtask.println("int numberterms;");
455 outtask.println("int *intarray;");
456 outtask.println("void * queue;");
457 outtask.println("int numbertags;");
458 outtask.println("int *tagarray;");
459 outtask.println("};");
461 outtask.println("struct taskdescriptor {");
462 outtask.println("void * taskptr;");
463 outtask.println("int numParameters;");
464 outtask.println("int numTotal;");
465 outtask.println("struct parameterdescriptor **descriptorarray;");
466 outtask.println("char * name;");
467 outtask.println("};");
468 outtask.println("extern struct taskdescriptor * taskarray[];");
469 outtask.println("extern numtasks;");
470 outtask.println("#endif");
474 private void buildRepairStructs(PrintWriter outrepairstructs) {
475 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
476 while(classit.hasNext()) {
477 ClassDescriptor cn=(ClassDescriptor)classit.next();
478 outrepairstructs.println("structure "+cn.getSymbol()+" {");
479 outrepairstructs.println(" int __type__;");
481 outrepairstructs.println(" int __flag__;");
482 if(!state.MULTICORE) {
483 outrepairstructs.println(" int __flagptr__;");
486 printRepairStruct(cn, outrepairstructs);
487 outrepairstructs.println("}\n");
490 for(int i=0;i<state.numArrays();i++) {
491 TypeDescriptor tdarray=arraytable[i];
492 TypeDescriptor tdelement=tdarray.dereference();
493 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
494 outrepairstructs.println(" int __type__;");
495 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
496 outrepairstructs.println(" int length;");
498 // Need to add support to repair tool for this
499 if (tdelement.isClass()||tdelement.isArray())
500 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" * elem[this.length];");
502 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" elem[this.length];");
504 outrepairstructs.println("}\n");
508 private void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
509 ClassDescriptor sp=cn.getSuperDesc();
511 printRepairStruct(sp, output);
513 Vector fields=(Vector)fieldorder.get(cn);
515 for(int i=0;i<fields.size();i++) {
516 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
517 if (fd.getType().isArray()) {
518 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
519 } else if (fd.getType().isClass())
520 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
521 else if (fd.getType().isFloat())
522 output.println(" int "+fd.getSymbol()+"; /* really float */");
524 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
528 /** This method outputs TaskDescriptor information */
529 private void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
530 for (int i=0;i<task.numParameters();i++) {
531 VarDescriptor param_var=task.getParameter(i);
532 TypeDescriptor param_type=task.getParamType(i);
533 FlagExpressionNode param_flag=task.getFlag(param_var);
534 TagExpressionList param_tag=task.getTag(param_var);
537 if (param_flag==null) {
538 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
539 output.println("0x0, 0x0 };");
542 DNFFlag dflag=param_flag.getDNF();
543 dnfterms=dflag.size();
545 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
546 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
547 for(int j=0;j<dflag.size();j++) {
550 Vector term=dflag.get(j);
553 for(int k=0;k<term.size();k++) {
554 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
555 FlagDescriptor fd=dfa.getFlag();
556 boolean negated=dfa.getNegated();
557 int flagid=1<<((Integer)flags.get(fd)).intValue();
562 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
564 output.println("};");
567 output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
568 //BUG...added next line to fix, test with any task program
570 for(int j=0;j<param_tag.numTags();j++) {
573 /* for each tag we need */
574 /* which slot it is */
575 /* what type it is */
576 TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
577 TempDescriptor tmp=param_tag.getTemp(j);
578 int slot=fm.getTagInt(tmp);
579 output.println(slot+", "+state.getTagId(tvd.getTag()));
581 output.println("};");
583 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
584 output.println("/* type */"+param_type.getClassDesc().getId()+",");
585 output.println("/* number of DNF terms */"+dnfterms+",");
586 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
587 output.println("0,");
588 //BUG, added next line to fix and else statement...test
589 //with any task program
591 output.println("/* number of tags */"+param_tag.numTags()+",");
593 output.println("/* number of tags */ 0,");
594 output.println("parametertag_"+i+"_"+task.getSafeSymbol());
595 output.println("};");
599 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
600 for (int i=0;i<task.numParameters();i++) {
603 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
605 output.println("};");
607 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
608 output.println("&"+task.getSafeSymbol()+",");
609 output.println("/* number of parameters */" +task.numParameters() + ",");
610 int numtotal=task.numParameters()+fm.numTags();
611 output.println("/* number total parameters */" +numtotal + ",");
612 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
613 output.println("\""+task.getSymbol()+"\"");
614 output.println("};");
618 /** The buildVirtualTables method outputs the virtual dispatch
619 * tables for methods. */
621 //private void buildVirtualTables(PrintWriter outvirtual) {
622 protected void buildVirtualTables(PrintWriter outvirtual) {
623 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
624 while(classit.hasNext()) {
625 ClassDescriptor cd=(ClassDescriptor)classit.next();
626 if (virtualcalls.getMethodCount(cd)>maxcount)
627 maxcount=virtualcalls.getMethodCount(cd);
629 MethodDescriptor[][] virtualtable=null;
630 LocalityBinding[][] lbvirtualtable=null;
632 lbvirtualtable=new LocalityBinding[state.numClasses()+state.numArrays()][maxcount];
634 virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
636 /* Fill in virtual table */
637 classit=state.getClassSymbolTable().getDescriptorsIterator();
638 while(classit.hasNext()) {
639 ClassDescriptor cd=(ClassDescriptor)classit.next();
641 fillinRow(cd, lbvirtualtable, cd.getId());
643 fillinRow(cd, virtualtable, cd.getId());
646 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
647 Iterator arrayit=state.getArrayIterator();
648 while(arrayit.hasNext()) {
649 TypeDescriptor td=(TypeDescriptor)arrayit.next();
650 int id=state.getArrayNumber(td);
652 fillinRow(objectcd, lbvirtualtable, id+state.numClasses());
654 fillinRow(objectcd, virtualtable, id+state.numClasses());
657 outvirtual.print("void * virtualtable[]={");
658 boolean needcomma=false;
659 for(int i=0;i<state.numClasses()+state.numArrays();i++) {
660 for(int j=0;j<maxcount;j++) {
662 outvirtual.print(", ");
663 if (state.DSM&&lbvirtualtable[i][j]!=null) {
664 LocalityBinding lb=lbvirtualtable[i][j];
665 MethodDescriptor md=lb.getMethod();
666 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
667 } else if (!state.DSM&&virtualtable[i][j]!=null) {
668 MethodDescriptor md=virtualtable[i][j];
669 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
671 outvirtual.print("0");
675 outvirtual.println("");
677 outvirtual.println("};");
681 private void fillinRow(ClassDescriptor cd, MethodDescriptor[][] 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 for(Iterator it=cd.getMethods();it.hasNext();) {
687 MethodDescriptor md=(MethodDescriptor)it.next();
688 if (md.isStatic()||md.getReturnType()==null)
690 int methodnum=virtualcalls.getMethodNumber(md);
691 virtualtable[rownum][methodnum]=md;
695 private void fillinRow(ClassDescriptor cd, LocalityBinding[][] virtualtable, int rownum) {
696 /* Get inherited methods */
697 if (cd.getSuperDesc()!=null)
698 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
699 /* Override them with our methods */
700 if (locality.getClassBindings(cd)!=null)
701 for(Iterator<LocalityBinding> lbit=locality.getClassBindings(cd).iterator();lbit.hasNext();) {
702 LocalityBinding lb=lbit.next();
703 MethodDescriptor md=lb.getMethod();
704 //Is the method static or a constructor
705 if (md.isStatic()||md.getReturnType()==null)
707 int methodnum=virtualcalls.getLocalityNumber(lb);
708 virtualtable[rownum][methodnum]=lb;
713 /** Generate array that contains the sizes of class objects. The
714 * object allocation functions in the runtime use this
717 private void generateSizeArray(PrintWriter outclassdefs) {
718 outclassdefs.print("int classsize[]={");
719 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
720 cdarray=new ClassDescriptor[state.numClasses()];
721 while(it.hasNext()) {
722 ClassDescriptor cd=(ClassDescriptor)it.next();
723 cdarray[cd.getId()]=cd;
725 boolean needcomma=false;
726 for(int i=0;i<state.numClasses();i++) {
728 outclassdefs.print(", ");
729 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
733 arraytable=new TypeDescriptor[state.numArrays()];
735 Iterator arrayit=state.getArrayIterator();
736 while(arrayit.hasNext()) {
737 TypeDescriptor td=(TypeDescriptor)arrayit.next();
738 int id=state.getArrayNumber(td);
742 for(int i=0;i<state.numArrays();i++) {
744 outclassdefs.print(", ");
745 TypeDescriptor tdelement=arraytable[i].dereference();
746 if (tdelement.isArray()||tdelement.isClass())
747 outclassdefs.print("sizeof(void *)");
749 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
753 outclassdefs.println("};");
756 /** Constructs params and temp objects for each method or task.
757 * These objects tell the compiler which temps need to be
760 //private void generateTempStructs(FlatMethod fm, LocalityBinding lb) {
761 protected void generateTempStructs(FlatMethod fm, LocalityBinding lb) {
762 MethodDescriptor md=fm.getMethod();
763 TaskDescriptor task=fm.getTask();
764 Set<TempDescriptor> saveset=lb!=null?locality.getTempSet(lb):null;
765 ParamsObject objectparams=md!=null?new ParamsObject(md,tag++):new ParamsObject(task, tag++);
768 paramstable.put(lb, objectparams);
770 paramstable.put(md, objectparams);
772 paramstable.put(task, objectparams);
774 for(int i=0;i<fm.numParameters();i++) {
775 TempDescriptor temp=fm.getParameter(i);
776 TypeDescriptor type=temp.getType();
777 if (type.isPtr()&&GENERATEPRECISEGC)
778 objectparams.addPtr(temp);
780 objectparams.addPrim(temp);
781 if(lb!=null&&saveset.contains(temp)) {
782 backuptable.put(temp, temp.createNew());
786 for(int i=0;i<fm.numTags();i++) {
787 TempDescriptor temp=fm.getTag(i);
788 if (GENERATEPRECISEGC)
789 objectparams.addPtr(temp);
791 objectparams.addPrim(temp);
794 TempObject objecttemps=md!=null?new TempObject(objectparams,md,tag++):new TempObject(objectparams, task, tag++);
796 tempstable.put(lb, objecttemps);
798 tempstable.put(md, objecttemps);
800 tempstable.put(task, objecttemps);
802 for(Iterator nodeit=fm.getNodeSet().iterator();nodeit.hasNext();) {
803 FlatNode fn=(FlatNode)nodeit.next();
804 TempDescriptor[] writes=fn.writesTemps();
805 for(int i=0;i<writes.length;i++) {
806 TempDescriptor temp=writes[i];
807 TypeDescriptor type=temp.getType();
808 if (type.isPtr()&&GENERATEPRECISEGC)
809 objecttemps.addPtr(temp);
811 objecttemps.addPrim(temp);
812 if(lb!=null&&saveset.contains(temp)&&
813 !backuptable.containsKey(temp))
814 backuptable.put(temp, temp.createNew());
818 /* Create backup temps */
820 for(Iterator<TempDescriptor> tmpit=backuptable.values().iterator();tmpit.hasNext();) {
821 TempDescriptor tmp=tmpit.next();
822 TypeDescriptor type=tmp.getType();
823 if (type.isPtr()&&GENERATEPRECISEGC)
824 objecttemps.addPtr(tmp);
826 objecttemps.addPrim(tmp);
828 /* Create temp to hold revert table */
829 if (lb.getHasAtomic()||lb.isAtomic()) {
830 TempDescriptor reverttmp=new TempDescriptor("revertlist", typeutil.getClass(TypeUtil.ObjectClass));
831 if (GENERATEPRECISEGC)
832 objecttemps.addPtr(reverttmp);
834 objecttemps.addPrim(reverttmp);
835 reverttable.put(lb, reverttmp);
840 /** This method outputs the following information about classes
842 * (1) For classes, what are the locations of pointers.
843 * (2) For arrays, does the array contain pointers or primitives.
844 * (3) For classes, does the class contain flags.
847 private void generateLayoutStructs(PrintWriter output) {
848 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
849 while(it.hasNext()) {
850 ClassDescriptor cn=(ClassDescriptor)it.next();
851 output.println("unsigned int "+cn.getSafeSymbol()+"_pointers[]={");
852 Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
854 while(allit.hasNext()) {
855 FieldDescriptor fd=(FieldDescriptor)allit.next();
856 TypeDescriptor type=fd.getType();
857 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
863 allit=cn.getFieldTable().getAllDescriptorsIterator();
864 while(allit.hasNext()) {
865 FieldDescriptor fd=(FieldDescriptor)allit.next();
866 TypeDescriptor type=fd.getType();
867 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
871 output.print("((unsigned int)&(((struct "+cn.getSafeSymbol() +" *)0)->"+fd.getSafeSymbol()+"))");
874 output.println("};");
876 output.println("unsigned int * pointerarray[]={");
877 boolean needcomma=false;
878 for(int i=0;i<state.numClasses();i++) {
879 ClassDescriptor cn=cdarray[i];
883 output.print(cn.getSafeSymbol()+"_pointers");
886 for(int i=0;i<state.numArrays();i++) {
888 output.println(", ");
889 TypeDescriptor tdelement=arraytable[i].dereference();
890 if (tdelement.isArray()||tdelement.isClass())
891 output.print("((unsigned int *)1)");
897 output.println("};");
899 output.println("int hasflags[]={");
900 for(int i=0;i<state.numClasses();i++) {
901 ClassDescriptor cn=cdarray[i];
903 output.println(", ");
910 output.println("};");
913 /** Print out table to give us supertypes */
914 private void generateSuperTypeTable(PrintWriter output) {
915 output.println("int supertypes[]={");
916 boolean needcomma=false;
917 for(int i=0;i<state.numClasses();i++) {
918 ClassDescriptor cn=cdarray[i];
922 if (cn.getSuperDesc()!=null) {
923 ClassDescriptor cdsuper=cn.getSuperDesc();
924 output.print(cdsuper.getId());
928 output.println("};");
931 /** Force consistent field ordering between inherited classes. */
933 private void printClassStruct(ClassDescriptor cn, PrintWriter classdefout) {
935 ClassDescriptor sp=cn.getSuperDesc();
937 printClassStruct(sp, classdefout);
939 if (!fieldorder.containsKey(cn)) {
940 Vector fields=new Vector();
941 fieldorder.put(cn,fields);
942 if (sp==null&&!state.TASK) {
943 fields.add(cn.getFieldTable().get("cachedCode"));
945 Iterator fieldit=cn.getFields();
946 while(fieldit.hasNext()) {
947 FieldDescriptor fd=(FieldDescriptor)fieldit.next();
948 if ((sp==null||!sp.getFieldTable().contains(fd.getSymbol()))&&
949 (!fd.getSymbol().equals("cachedCode")||state.TASK))
953 Vector fields=(Vector)fieldorder.get(cn);
955 for(int i=0;i<fields.size();i++) {
956 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
957 if (fd.getType().isClass()||fd.getType().isArray())
958 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
960 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
965 /* Map flags to integers consistently between inherited
968 //private void mapFlags(ClassDescriptor cn) {
969 protected void mapFlags(ClassDescriptor cn) {
970 ClassDescriptor sp=cn.getSuperDesc();
974 if (!flagorder.containsKey(cn)) {
975 Hashtable flags=new Hashtable();
976 flagorder.put(cn,flags);
978 Hashtable superflags=(Hashtable)flagorder.get(sp);
979 Iterator superflagit=superflags.keySet().iterator();
980 while(superflagit.hasNext()) {
981 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
982 Integer number=(Integer)superflags.get(fd);
983 flags.put(fd, number);
984 if ((number.intValue()+1)>max)
985 max=number.intValue()+1;
989 Iterator flagit=cn.getFlags();
990 while(flagit.hasNext()) {
991 FlagDescriptor fd=(FlagDescriptor)flagit.next();
992 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
993 flags.put(fd, new Integer(max++));
999 /** This function outputs (1) structures that parameters are
1000 * passed in (when PRECISE GC is enabled) and (2) function
1001 * prototypes for the methods */
1003 //private void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
1004 protected void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
1005 /* Output class structure */
1006 classdefout.println("struct "+cn.getSafeSymbol()+" {");
1007 classdefout.println(" int type;");
1009 classdefout.println(" pthread_t tid;");
1010 classdefout.println(" void * lockentry;");
1011 classdefout.println(" int lockcount;");
1015 classdefout.println(" int flag;");
1016 if((!state.MULTICORE) || (cn.getSymbol().equals("TagDescriptor"))) {
1017 classdefout.println(" void * flagptr;");
1019 classdefout.println(" int flagptr;");
1021 if (state.OPTIONAL){
1022 classdefout.println(" int numfses;");
1023 classdefout.println(" int * fses;");
1026 printClassStruct(cn, classdefout);
1027 classdefout.println("};\n");
1030 /* Cycle through LocalityBindings */
1031 HashSet<MethodDescriptor> nativemethods=new HashSet<MethodDescriptor>();
1032 Set<LocalityBinding> lbset=locality.getClassBindings(cn);
1034 for(Iterator<LocalityBinding> lbit=lbset.iterator();lbit.hasNext();) {
1035 LocalityBinding lb=lbit.next();
1036 MethodDescriptor md=lb.getMethod();
1037 if (md.getModifiers().isNative()) {
1038 //make sure we only print a native method once
1039 if (nativemethods.contains(md)) {
1040 FlatMethod fm=state.getMethodFlat(md);
1041 generateTempStructs(fm, lb);
1044 nativemethods.add(md);
1046 generateMethod(cn, md, lb, headersout, output);
1049 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1050 MethodDescriptor md=(MethodDescriptor)methodit.next();
1051 if (md.getModifiers().isNative()&&!nativemethods.contains(md)) {
1052 //Need to build param structure for library code
1053 FlatMethod fm=state.getMethodFlat(md);
1054 generateTempStructs(fm, null);
1055 generateMethodParam(cn, md, null, output);
1060 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1061 MethodDescriptor md=(MethodDescriptor)methodit.next();
1062 generateMethod(cn, md, null, headersout, output);
1066 private void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter output) {
1067 /* Output parameter structure */
1068 if (GENERATEPRECISEGC) {
1069 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1070 if (state.DSM&&lb!=null)
1071 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1073 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1074 output.println(" int size;");
1075 output.println(" void * next;");
1076 for(int i=0;i<objectparams.numPointers();i++) {
1077 TempDescriptor temp=objectparams.getPointer(i);
1078 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1080 output.println("};\n");
1085 private void generateMethod(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter headersout, PrintWriter output) {
1086 FlatMethod fm=state.getMethodFlat(md);
1087 generateTempStructs(fm, lb);
1089 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1090 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md);
1092 generateMethodParam(cn, md, lb, output);
1094 /* Output temp structure */
1095 if (GENERATEPRECISEGC) {
1097 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1099 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1100 output.println(" int size;");
1101 output.println(" void * next;");
1102 for(int i=0;i<objecttemps.numPointers();i++) {
1103 TempDescriptor temp=objecttemps.getPointer(i);
1104 if (temp.getType().isNull())
1105 output.println(" void * "+temp.getSafeSymbol()+";");
1107 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1109 output.println("};\n");
1112 /********* Output method declaration ***********/
1114 /* First the return type */
1115 if (md.getReturnType()!=null) {
1116 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1117 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1119 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1121 //catch the constructor case
1122 headersout.print("void ");
1124 /* Next the method name */
1126 headersout.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1128 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1130 boolean printcomma=false;
1131 if (GENERATEPRECISEGC) {
1133 headersout.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1135 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1139 if (state.DSM&&lb.isAtomic()&&!md.getModifiers().isNative()) {
1141 headersout.print(", ");
1142 headersout.print("transrecord_t * trans");
1146 /* Output parameter list*/
1147 for(int i=0;i<objectparams.numPrimitives();i++) {
1148 TempDescriptor temp=objectparams.getPrimitive(i);
1150 headersout.print(", ");
1152 if (temp.getType().isClass()||temp.getType().isArray())
1153 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1155 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1157 headersout.println(");\n");
1161 /** This function outputs (1) structures that parameters are
1162 * passed in (when PRECISE GC is enabled) and (2) function
1163 * prototypes for the tasks */
1165 private void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1166 /* Cycle through tasks */
1167 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1169 while(taskit.hasNext()) {
1170 /* Classify parameters */
1171 TaskDescriptor task=(TaskDescriptor)taskit.next();
1172 FlatMethod fm=state.getMethodFlat(task);
1173 generateTempStructs(fm, null);
1175 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1176 TempObject objecttemps=(TempObject) tempstable.get(task);
1178 /* Output parameter structure */
1179 if (GENERATEPRECISEGC) {
1180 output.println("struct "+task.getSafeSymbol()+"_params {");
1182 output.println(" int size;");
1183 output.println(" void * next;");
1184 for(int i=0;i<objectparams.numPointers();i++) {
1185 TempDescriptor temp=objectparams.getPointer(i);
1186 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1189 output.println("};\n");
1190 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1191 maxtaskparams=objectparams.numPointers()+fm.numTags();
1195 /* Output temp structure */
1196 if (GENERATEPRECISEGC) {
1197 output.println("struct "+task.getSafeSymbol()+"_locals {");
1198 output.println(" int size;");
1199 output.println(" void * next;");
1200 for(int i=0;i<objecttemps.numPointers();i++) {
1201 TempDescriptor temp=objecttemps.getPointer(i);
1202 if (temp.getType().isNull())
1203 output.println(" void * "+temp.getSafeSymbol()+";");
1204 else if(temp.getType().isTag())
1205 output.println(" struct "+
1206 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1208 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1210 output.println("};\n");
1213 /* Output task declaration */
1214 headersout.print("void " + task.getSafeSymbol()+"(");
1216 boolean printcomma=false;
1217 if (GENERATEPRECISEGC) {
1218 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1220 headersout.print("void * parameterarray[]");
1221 headersout.println(");\n");
1225 /***** Generate code for FlatMethod fm. *****/
1227 private void generateFlatMethod(FlatMethod fm, LocalityBinding lb, PrintWriter output) {
1228 if (State.PRINTFLAT)
1229 System.out.println(fm.printMethod());
1230 MethodDescriptor md=fm.getMethod();
1232 TaskDescriptor task=fm.getTask();
1234 ClassDescriptor cn=md!=null?md.getClassDesc():null;
1236 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:md!=null?md:task);
1237 generateHeader(fm, lb, md!=null?md:task,output);
1238 TempObject objecttemp=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1239 if (state.DSM&&lb.getHasAtomic()) {
1240 output.println("transrecord_t * trans;");
1243 if (GENERATEPRECISEGC) {
1244 if (md!=null&&state.DSM)
1245 output.print(" struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1246 else if (md!=null&&!state.DSM)
1247 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1249 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
1251 output.print(objecttemp.numPointers()+",");
1252 output.print(paramsprefix);
1253 for(int j=0;j<objecttemp.numPointers();j++)
1254 output.print(", NULL");
1255 output.println("};");
1258 for(int i=0;i<objecttemp.numPrimitives();i++) {
1259 TempDescriptor td=objecttemp.getPrimitive(i);
1260 TypeDescriptor type=td.getType();
1262 output.println(" void * "+td.getSafeSymbol()+";");
1263 else if (type.isClass()||type.isArray())
1264 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1266 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1269 /* Assign labels to FlatNode's if necessary.*/
1271 Hashtable<FlatNode, Integer> nodetolabel=assignLabels(fm);
1273 /* Check to see if we need to do a GC if this is a
1274 * multi-threaded program...*/
1276 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1277 if (state.DSM&&lb.isAtomic())
1278 output.println("checkcollect2(&"+localsprefix+",trans);");
1280 output.println("checkcollect(&"+localsprefix+");");
1283 /* Do the actual code generation */
1284 FlatNode current_node=null;
1285 HashSet tovisit=new HashSet();
1286 HashSet visited=new HashSet();
1287 tovisit.add(fm.getNext(0));
1288 while(current_node!=null||!tovisit.isEmpty()) {
1289 if (current_node==null) {
1290 current_node=(FlatNode)tovisit.iterator().next();
1291 tovisit.remove(current_node);
1293 visited.add(current_node);
1294 if (nodetolabel.containsKey(current_node))
1295 output.println("L"+nodetolabel.get(current_node)+":");
1296 if (state.INSTRUCTIONFAILURE) {
1297 if (state.THREAD||state.DSM) {
1298 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
1301 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
1303 if (current_node.numNext()==0) {
1305 generateFlatNode(fm, lb, current_node, output);
1306 if (current_node.kind()!=FKind.FlatReturnNode) {
1307 output.println(" return;");
1310 } else if(current_node.numNext()==1) {
1312 generateFlatNode(fm, lb, current_node, output);
1313 FlatNode nextnode=current_node.getNext(0);
1314 if (visited.contains(nextnode)) {
1315 output.println("goto L"+nodetolabel.get(nextnode)+";");
1318 current_node=nextnode;
1319 } else if (current_node.numNext()==2) {
1322 generateFlatCondBranch(fm, lb, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
1323 if (!visited.contains(current_node.getNext(1)))
1324 tovisit.add(current_node.getNext(1));
1325 if (visited.contains(current_node.getNext(0))) {
1326 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
1329 current_node=current_node.getNext(0);
1330 } else throw new Error();
1332 output.println("}\n\n");
1335 /** This method assigns labels to FlatNodes */
1337 //private Hashtable<FlatNode, Integer> assignLabels(FlatMethod fm) {
1338 protected Hashtable<FlatNode, Integer> assignLabels(FlatMethod fm) {
1339 HashSet tovisit=new HashSet();
1340 HashSet visited=new HashSet();
1342 Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
1343 tovisit.add(fm.getNext(0));
1345 /*Assign labels first. A node needs a label if the previous
1346 * node has two exits or this node is a join point. */
1348 while(!tovisit.isEmpty()) {
1349 FlatNode fn=(FlatNode)tovisit.iterator().next();
1352 for(int i=0;i<fn.numNext();i++) {
1353 FlatNode nn=fn.getNext(i);
1355 //1) Edge >1 of node
1356 nodetolabel.put(nn,new Integer(labelindex++));
1358 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1362 nodetolabel.put(nn,new Integer(labelindex++));
1370 /** Generate text string that corresponds to the TempDescriptor td. */
1371 //private String generateTemp(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1372 protected String generateTemp(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1373 MethodDescriptor md=fm.getMethod();
1374 TaskDescriptor task=fm.getTask();
1375 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1377 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1378 return td.getSafeSymbol();
1381 if (objecttemps.isLocalPtr(td)) {
1382 return localsprefix+"."+td.getSafeSymbol();
1385 if (objecttemps.isParamPtr(td)) {
1386 return paramsprefix+"->"+td.getSafeSymbol();
1391 //private void generateFlatNode(FlatMethod fm, LocalityBinding lb, FlatNode fn, PrintWriter output) {
1392 protected void generateFlatNode(FlatMethod fm, LocalityBinding lb, FlatNode fn, PrintWriter output) {
1394 case FKind.FlatAtomicEnterNode:
1395 generateFlatAtomicEnterNode(fm, lb, (FlatAtomicEnterNode) fn, output);
1397 case FKind.FlatAtomicExitNode:
1398 generateFlatAtomicExitNode(fm, lb, (FlatAtomicExitNode) fn, output);
1400 case FKind.FlatGlobalConvNode:
1401 generateFlatGlobalConvNode(fm, lb, (FlatGlobalConvNode) fn, output);
1403 case FKind.FlatTagDeclaration:
1404 generateFlatTagDeclaration(fm, lb, (FlatTagDeclaration) fn,output);
1406 case FKind.FlatCall:
1407 generateFlatCall(fm, lb, (FlatCall) fn,output);
1409 case FKind.FlatFieldNode:
1410 generateFlatFieldNode(fm, lb, (FlatFieldNode) fn,output);
1412 case FKind.FlatElementNode:
1413 generateFlatElementNode(fm, lb, (FlatElementNode) fn,output);
1415 case FKind.FlatSetElementNode:
1416 generateFlatSetElementNode(fm, lb, (FlatSetElementNode) fn,output);
1418 case FKind.FlatSetFieldNode:
1419 generateFlatSetFieldNode(fm, lb, (FlatSetFieldNode) fn,output);
1422 generateFlatNew(fm, lb, (FlatNew) fn,output);
1424 case FKind.FlatOpNode:
1425 generateFlatOpNode(fm, lb, (FlatOpNode) fn,output);
1427 case FKind.FlatCastNode:
1428 generateFlatCastNode(fm, lb, (FlatCastNode) fn,output);
1430 case FKind.FlatLiteralNode:
1431 generateFlatLiteralNode(fm, lb, (FlatLiteralNode) fn,output);
1433 case FKind.FlatReturnNode:
1434 generateFlatReturnNode(fm, lb, (FlatReturnNode) fn,output);
1437 output.println("/* nop */");
1439 case FKind.FlatBackEdge:
1440 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1441 if(state.DSM&&locality.getAtomic(lb).get(fn).intValue()>0) {
1442 output.println("checkcollect2(&"+localsprefix+",trans);");
1444 output.println("checkcollect(&"+localsprefix+");");
1446 output.println("/* nop */");
1448 case FKind.FlatCheckNode:
1449 generateFlatCheckNode(fm, lb, (FlatCheckNode) fn, output);
1451 case FKind.FlatFlagActionNode:
1452 generateFlatFlagActionNode(fm, lb, (FlatFlagActionNode) fn, output);
1454 case FKind.FlatPrefetchNode:
1455 generateFlatPrefetchNode(fm,lb, (FlatPrefetchNode) fn, output);
1461 public void generateFlatPrefetchNode(FlatMethod fm, LocalityBinding lb, FlatPrefetchNode fpn, PrintWriter output) {
1462 if (state.PREFETCH) {
1463 Vector oids = new Vector();
1464 Vector fieldoffset = new Vector();
1465 Vector endoffset = new Vector();
1466 int tuplecount = 0; //Keeps track of number of prefetch tuples that need to be generated
1467 for(Iterator it = fpn.hspp.iterator();it.hasNext();) {
1468 PrefetchPair pp = (PrefetchPair) it.next();
1469 Integer statusbase = locality.getNodePreTempInfo(lb,fpn).get(pp.base);
1470 /* Find prefetches that can generate oid */
1471 if(statusbase == LocalityAnalysis.GLOBAL) {
1472 generateTransCode(fm, lb, pp, oids, fieldoffset, endoffset, tuplecount, locality.getAtomic(lb).get(fpn).intValue()>0, false);
1474 } else if (statusbase == LocalityAnalysis.LOCAL) {
1475 generateTransCode(fm,lb,pp,oids,fieldoffset,endoffset,tuplecount,false,true);
1482 output.println("{");
1483 output.println("/* prefetch */");
1484 output.println("void * prefptr;");
1485 output.println("int tmpindex;");
1486 /*Create C code for oid array */
1487 output.print(" unsigned int oidarray_[] = {");
1488 boolean needcomma=false;
1489 for (Iterator it = oids.iterator();it.hasNext();) {
1492 output.print(it.next());
1495 output.println("};");
1497 /*Create C code for endoffset values */
1498 output.print(" unsigned short endoffsetarry_[] = {");
1500 for (Iterator it = endoffset.iterator();it.hasNext();) {
1503 output.print(it.next());
1506 output.println("};");
1508 /*Create C code for Field Offset Values */
1509 output.print(" short fieldarry_[] = {");
1511 for (Iterator it = fieldoffset.iterator();it.hasNext();) {
1514 output.print(it.next());
1517 output.println("};");
1518 /* make the prefetch call to Runtime */
1519 output.println(" prefetch("+tuplecount+", oidarray_, endoffsetarry_, fieldarry_);");
1520 output.println("}");
1524 public void generateTransCode(FlatMethod fm, LocalityBinding lb,PrefetchPair pp, Vector oids, Vector fieldoffset, Vector endoffset, int tuplecount, boolean inside, boolean localbase) {
1525 short offsetcount = 0;
1529 } else if (localbase) {
1530 for(;breakindex<pp.desc.size();breakindex++) {
1531 Descriptor desc=pp.getDescAt(breakindex);
1532 if (desc instanceof FieldDescriptor) {
1533 FieldDescriptor fd=(FieldDescriptor)desc;
1534 if (fd.isGlobal()) {
1542 if (breakindex>pp.desc.size()) //all local
1545 TypeDescriptor lasttype=pp.base.getType();
1546 String basestr=generateTemp(fm, pp.base, lb);
1548 boolean maybenull=fm.getMethod().isStatic()||
1549 !pp.base.equals(fm.getParameter(0));
1551 for(int i=0;i<breakindex;i++) {
1552 String indexcheck="";
1554 Descriptor desc=pp.getDescAt(i);
1555 if (desc instanceof FieldDescriptor) {
1556 FieldDescriptor fd=(FieldDescriptor)desc;
1558 if (!teststr.equals(""))
1560 teststr+="((prefptr="+basestr+")!=NULL)";
1561 basestr="((struct "+lasttype.getSafeSymbol()+" *)prefptr)->"+fd.getSafeSymbol();
1563 basestr=basestr+"->"+fd.getSafeSymbol();
1566 lasttype=fd.getType();
1568 IndexDescriptor id=(IndexDescriptor)desc;
1569 indexcheck="((tmpindex=";
1570 for(int j=0;j<id.tddesc.size();j++) {
1571 indexcheck+=generateTemp(fm, id.getTempDescAt(j), lb)+"+";
1573 indexcheck+=id.offset+")>=0)&&(tmpindex<((struct ArrayObject *)prefptr)->___length___)";
1575 if (!teststr.equals(""))
1577 teststr+="((prefptr="+basestr+")!= NULL) &&"+indexcheck;
1578 basestr="((void **)(((char *) &(((struct ArrayObject *)prefptr)->___length___))+sizeof(int)))[tmpindex]";
1580 lasttype=lasttype.dereference();
1585 if (teststr.equals("")) {
1586 oid="((unsigned int)"+basestr+")";
1588 oid="((unsigned int)(("+teststr+")?"+basestr+":NULL))";
1592 for(int i = breakindex; i < pp.desc.size(); i++) {
1593 String newfieldoffset;
1594 Object desc = pp.getDescAt(i);
1595 if(desc instanceof FieldDescriptor) {
1596 FieldDescriptor fd=(FieldDescriptor)desc;
1597 newfieldoffset = new String("(unsigned int)(&(((struct "+ lasttype.getSafeSymbol()+" *)0)->"+ fd.getSafeSymbol()+ "))");
1598 lasttype=fd.getType();
1600 newfieldoffset = "";
1601 IndexDescriptor id=(IndexDescriptor)desc;
1602 for(int j = 0; j < id.tddesc.size(); j++) {
1603 newfieldoffset += generateTemp(fm, id.getTempDescAt(j), lb) + "+";
1605 newfieldoffset += id.offset.toString();
1606 lasttype=lasttype.dereference();
1608 fieldoffset.add(newfieldoffset);
1611 int base=(tuplecount>0)?((Short)endoffset.get(tuplecount-1)).intValue():0;
1612 base+=pp.desc.size()-breakindex;
1613 endoffset.add(new Short((short)base));
1618 public void generateFlatGlobalConvNode(FlatMethod fm, LocalityBinding lb, FlatGlobalConvNode fgcn, PrintWriter output) {
1619 if (lb!=fgcn.getLocality())
1621 /* Have to generate flat globalconv */
1622 if (fgcn.getMakePtr()) {
1623 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)transRead(trans, (unsigned int) "+generateTemp(fm, fgcn.getSrc(),lb)+");");
1625 /* Need to convert to OID */
1626 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)COMPOID("+generateTemp(fm, fgcn.getSrc(),lb)+");");
1630 public void generateFlatAtomicEnterNode(FlatMethod fm, LocalityBinding lb, FlatAtomicEnterNode faen, PrintWriter output) {
1631 /* Check to see if we need to generate code for this atomic */
1632 if (locality.getAtomic(lb).get(faen.getPrev(0)).intValue()>0)
1634 /* Backup the temps. */
1635 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1636 TempDescriptor tmp=tmpit.next();
1637 output.println(generateTemp(fm, backuptable.get(tmp),lb)+"="+generateTemp(fm,tmp,lb)+";");
1639 output.println("goto transstart"+faen.getIdentifier()+";");
1641 /******* Print code to retry aborted transaction *******/
1642 output.println("transretry"+faen.getIdentifier()+":");
1645 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1646 TempDescriptor tmp=tmpit.next();
1647 output.println(generateTemp(fm, tmp,lb)+"="+generateTemp(fm,backuptable.get(tmp),lb)+";");
1650 /********* Need to revert local object store ********/
1651 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1653 output.println("while ("+revertptr+") {");
1654 output.println("struct ___Object___ * tmpptr;");
1655 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1656 output.println("REVERT_OBJ("+revertptr+");");
1657 output.println(revertptr+"=tmpptr;");
1658 output.println("}");
1660 /******* Tell the runtime to start the transaction *******/
1662 output.println("transstart"+faen.getIdentifier()+":");
1663 output.println("trans=transStart();");
1666 public void generateFlatAtomicExitNode(FlatMethod fm, LocalityBinding lb, FlatAtomicExitNode faen, PrintWriter output) {
1667 /* Check to see if we need to generate code for this atomic */
1668 if (locality.getAtomic(lb).get(faen).intValue()>0)
1670 //store the revert list before we lose the transaction object
1671 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1672 output.println(revertptr+"=trans->revertlist;");
1673 output.println("if (transCommit(trans)) {");
1674 /* Transaction aborts if it returns true */
1675 output.println("goto transretry"+faen.getAtomicEnter().getIdentifier()+";");
1676 output.println("} else {");
1677 /* Need to commit local object store */
1678 output.println("while ("+revertptr+") {");
1679 output.println("struct ___Object___ * tmpptr;");
1680 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1681 output.println("COMMIT_OBJ("+revertptr+");");
1682 output.println(revertptr+"=tmpptr;");
1683 output.println("}");
1684 output.println("}");
1687 private void generateFlatCheckNode(FlatMethod fm, LocalityBinding lb, FlatCheckNode fcn, PrintWriter output) {
1688 if (state.CONSCHECK) {
1689 String specname=fcn.getSpec();
1690 String varname="repairstate___";
1691 output.println("{");
1692 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1694 TempDescriptor[] temps=fcn.getTemps();
1695 String[] vars=fcn.getVars();
1696 for(int i=0;i<temps.length;i++) {
1697 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i],lb)+";");
1700 output.println("if (doanalysis"+specname+"("+varname+")) {");
1701 output.println("free"+specname+"_state("+varname+");");
1702 output.println("} else {");
1703 output.println("/* Bad invariant */");
1704 output.println("free"+specname+"_state("+varname+");");
1705 output.println("abort_task();");
1706 output.println("}");
1707 output.println("}");
1711 private void generateFlatCall(FlatMethod fm, LocalityBinding lb, FlatCall fc, PrintWriter output) {
1712 MethodDescriptor md=fc.getMethod();
1713 ParamsObject objectparams=(ParamsObject)paramstable.get(state.DSM?locality.getBinding(lb, fc):md);
1714 ClassDescriptor cn=md.getClassDesc();
1715 output.println("{");
1716 if (GENERATEPRECISEGC) {
1718 LocalityBinding fclb=locality.getBinding(lb, fc);
1719 output.print(" struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1721 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1723 output.print(objectparams.numPointers());
1724 output.print(", & "+localsprefix);
1725 if (md.getThis()!=null) {
1727 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis(),lb));
1729 if (fc.getThis()!=null&&md.getThis()==null) {
1730 System.out.println("WARNING!!!!!!!!!!!!");
1731 System.out.println("Source code calls static method"+md+"on an object in "+fm.getMethod()+"!");
1735 for(int i=0;i<fc.numArgs();i++) {
1736 Descriptor var=md.getParameter(i);
1737 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1738 if (objectparams.isParamPtr(paramtemp)) {
1739 TempDescriptor targ=fc.getArg(i);
1741 TypeDescriptor td=md.getParamType(i);
1743 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1745 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1748 output.println("};");
1753 if (fc.getReturnTemp()!=null)
1754 output.print(generateTemp(fm,fc.getReturnTemp(),lb)+"=");
1756 /* Do we need to do virtual dispatch? */
1757 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
1760 LocalityBinding fclb=locality.getBinding(lb, fc);
1761 output.print(cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1763 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1768 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1769 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1771 output.print(md.getReturnType().getSafeSymbol()+" ");
1772 output.print("(*)(");
1774 boolean printcomma=false;
1775 if (GENERATEPRECISEGC) {
1777 LocalityBinding fclb=locality.getBinding(lb, fc);
1778 output.print("struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1780 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1784 for(int i=0;i<objectparams.numPrimitives();i++) {
1785 TempDescriptor temp=objectparams.getPrimitive(i);
1789 if (temp.getType().isClass()||temp.getType().isArray())
1790 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
1792 output.print(temp.getType().getSafeSymbol());
1796 LocalityBinding fclb=locality.getBinding(lb, fc);
1797 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getLocalityNumber(fclb)+"])");
1799 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
1803 boolean needcomma=false;
1804 if (GENERATEPRECISEGC) {
1805 output.print("&__parameterlist__");
1809 if (state.DSM&&locality.getBinding(lb,fc).isAtomic()&&!fc.getMethod().getModifiers().isNative()) {
1812 output.print("trans");
1816 if (!GENERATEPRECISEGC) {
1817 if (fc.getThis()!=null) {
1818 TypeDescriptor ptd=md.getThis().getType();
1821 if (ptd.isClass()&&!ptd.isArray())
1822 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1823 output.print(generateTemp(fm,fc.getThis(),lb));
1828 for(int i=0;i<fc.numArgs();i++) {
1829 Descriptor var=md.getParameter(i);
1830 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1831 if (objectparams.isParamPrim(paramtemp)) {
1832 TempDescriptor targ=fc.getArg(i);
1836 TypeDescriptor ptd=md.getParamType(i);
1837 if (ptd.isClass()&&!ptd.isArray())
1838 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1839 output.print(generateTemp(fm, targ,lb));
1843 output.println(");");
1844 output.println(" }");
1847 private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
1848 Set subclasses=typeutil.getSubClasses(thiscd);
1849 if (subclasses==null)
1851 for(Iterator classit=subclasses.iterator();classit.hasNext();) {
1852 ClassDescriptor cd=(ClassDescriptor)classit.next();
1853 Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
1854 for(Iterator matchit=possiblematches.iterator();matchit.hasNext();) {
1855 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
1856 if (md.matches(matchmd))
1863 private void generateFlatFieldNode(FlatMethod fm, LocalityBinding lb, FlatFieldNode ffn, PrintWriter output) {
1865 Integer status=locality.getNodePreTempInfo(lb,ffn).get(ffn.getSrc());
1866 if (status==LocalityAnalysis.GLOBAL) {
1867 String field=ffn.getField().getSafeSymbol();
1868 String src=generateTemp(fm, ffn.getSrc(),lb);
1869 String dst=generateTemp(fm, ffn.getDst(),lb);
1871 if (ffn.getField().getType().isPtr()) {
1873 //TODO: Uncomment this when we have runtime support
1874 //if (ffn.getSrc()==ffn.getDst()) {
1875 //output.println("{");
1876 //output.println("void * temp="+src+";");
1877 //output.println("if (temp&0x1) {");
1878 //output.println("temp=(void *) transRead(trans, (unsigned int) temp);");
1879 //output.println(src+"->"+field+"="+temp+";");
1880 //output.println("}");
1881 //output.println(dst+"=temp;");
1882 //output.println("}");
1884 output.println(dst+"="+ src +"->"+field+ ";");
1885 //output.println("if ("+dst+"&0x1) {");
1886 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1887 //output.println(src+"->"+field+"="+src+"->"+field+";");
1888 //output.println("}");
1891 output.println(dst+"="+ src+"->"+field+";");
1893 } else if (status==LocalityAnalysis.LOCAL) {
1894 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1895 } else if (status==LocalityAnalysis.EITHER) {
1896 //Code is reading from a null pointer
1897 output.println("if ("+generateTemp(fm, ffn.getSrc(),lb)+") {");
1898 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
1899 //This should throw a suitable null pointer error
1900 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1902 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
1904 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1908 private void generateFlatSetFieldNode(FlatMethod fm, LocalityBinding lb, FlatSetFieldNode fsfn, PrintWriter output) {
1909 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
1910 throw new Error("Can't set array length");
1911 if (state.DSM && locality.getAtomic(lb).get(fsfn).intValue()>0) {
1912 Integer statussrc=locality.getNodePreTempInfo(lb,fsfn).get(fsfn.getSrc());
1913 Integer statusdst=locality.getNodeTempInfo(lb).get(fsfn).get(fsfn.getDst());
1914 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
1916 String src=generateTemp(fm,fsfn.getSrc(),lb);
1917 String dst=generateTemp(fm,fsfn.getDst(),lb);
1919 output.println("{");
1920 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
1922 if (statusdst.equals(LocalityAnalysis.GLOBAL)) {
1925 output.println("*((unsigned int *)&("+dst+"->___localcopy___))|=DIRTY;");
1927 output.println("*((unsigned int *)&("+glbdst+"->"+ fsfn.getField().getSafeSymbol()+"))=srcoid;");
1929 output.println(glbdst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1930 } else if (statusdst.equals(LocalityAnalysis.LOCAL)) {
1931 /** Check if we need to copy */
1932 output.println("if(!"+dst+"->"+localcopystr+") {");
1933 /* Link object into list */
1934 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1935 output.println(revertptr+"=trans->revertlist;");
1936 if (GENERATEPRECISEGC)
1937 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
1939 output.println("COPY_OBJ("+dst+");");
1940 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
1941 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
1942 output.println("}");
1944 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
1946 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1947 } else if (statusdst.equals(LocalityAnalysis.EITHER)) {
1948 //writing to a null...bad
1949 output.println("if ("+dst+") {");
1950 output.println("printf(\"BIG ERROR 2\\n\");exit(-1);}");
1952 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
1954 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1957 output.println("}");
1960 output.println(generateTemp(fm, fsfn.getDst(),lb)+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc(),lb)+";");
1964 private void generateFlatElementNode(FlatMethod fm, LocalityBinding lb, FlatElementNode fen, PrintWriter output) {
1965 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
1968 if (elementtype.isArray()||elementtype.isClass())
1971 type=elementtype.getSafeSymbol()+" ";
1973 if (fen.needsBoundsCheck()) {
1974 output.println("if ("+generateTemp(fm, fen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fen.getIndex(),lb)+" >= "+generateTemp(fm,fen.getSrc(),lb) + "->___length___)");
1975 output.println("failedboundschk();");
1978 Integer status=locality.getNodePreTempInfo(lb,fen).get(fen.getSrc());
1979 if (status==LocalityAnalysis.GLOBAL) {
1980 String dst=generateTemp(fm, fen.getDst(),lb);
1982 if (elementtype.isPtr()) {
1983 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
1984 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1986 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
1988 } else if (status==LocalityAnalysis.LOCAL) {
1989 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
1990 } else if (status==LocalityAnalysis.EITHER) {
1991 //Code is reading from a null pointer
1992 output.println("if ("+generateTemp(fm, fen.getSrc(),lb)+") {");
1993 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
1994 //This should throw a suitable null pointer error
1995 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
1997 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
1999 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2003 private void generateFlatSetElementNode(FlatMethod fm, LocalityBinding lb, FlatSetElementNode fsen, PrintWriter output) {
2004 //TODO: need dynamic check to make sure this assignment is actually legal
2005 //Because Object[] could actually be something more specific...ie. Integer[]
2007 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2010 if (elementtype.isArray()||elementtype.isClass())
2013 type=elementtype.getSafeSymbol()+" ";
2016 if (fsen.needsBoundsCheck()) {
2017 output.println("if ("+generateTemp(fm, fsen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fsen.getIndex(),lb)+" >= "+generateTemp(fm,fsen.getDst(),lb) + "->___length___)");
2018 output.println("failedboundschk();");
2021 if (state.DSM && locality.getAtomic(lb).get(fsen).intValue()>0) {
2022 Integer statussrc=locality.getNodePreTempInfo(lb,fsen).get(fsen.getSrc());
2023 Integer statusdst=locality.getNodePreTempInfo(lb,fsen).get(fsen.getDst());
2024 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
2025 boolean dstglobal=statusdst==LocalityAnalysis.GLOBAL;
2026 boolean dstlocal=statusdst==LocalityAnalysis.LOCAL;
2029 output.println("*((unsigned int *)&("+generateTemp(fm,fsen.getDst(),lb)+"->___localcopy___))|=DIRTY;");
2030 } else if (dstlocal) {
2031 /** Check if we need to copy */
2032 String dst=generateTemp(fm, fsen.getDst(),lb);
2033 output.println("if(!"+dst+"->"+localcopystr+") {");
2034 /* Link object into list */
2035 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2036 output.println(revertptr+"=trans->revertlist;");
2037 if (GENERATEPRECISEGC)
2038 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
2040 output.println("COPY_OBJ("+dst+");");
2041 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
2042 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
2043 output.println("}");
2044 } else throw new Error("Unknown array type");
2046 output.println("{");
2047 String src=generateTemp(fm, fsen.getSrc(), lb);
2048 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
2049 output.println("((int*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]=srcoid;");
2050 output.println("}");
2052 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2055 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2058 private void generateFlatNew(FlatMethod fm, LocalityBinding lb, FlatNew fn, PrintWriter output) {
2059 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2060 //Stash pointer in case of GC
2061 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2062 output.println(revertptr+"=trans->revertlist;");
2064 if (fn.getType().isArray()) {
2065 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2066 if (fn.isGlobal()) {
2067 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarrayglobal(trans, "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2068 } else if (GENERATEPRECISEGC) {
2069 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray(&"+localsprefix+", "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2071 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2074 if (fn.isGlobal()) {
2075 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newglobal(trans, "+fn.getType().getClassDesc().getId()+");");
2076 } else if (GENERATEPRECISEGC) {
2077 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new(&"+localsprefix+", "+fn.getType().getClassDesc().getId()+");");
2079 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2082 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2083 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2084 output.println("trans->revertlist="+revertptr+";");
2088 private void generateFlatTagDeclaration(FlatMethod fm, LocalityBinding lb, FlatTagDeclaration fn, PrintWriter output) {
2089 if (GENERATEPRECISEGC) {
2090 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag(&"+localsprefix+", "+state.getTagId(fn.getType())+");");
2092 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag("+state.getTagId(fn.getType())+");");
2096 private void generateFlatOpNode(FlatMethod fm, LocalityBinding lb, FlatOpNode fon, PrintWriter output) {
2097 if (fon.getRight()!=null) {
2098 if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2099 if (fon.getLeft().getType().isLong())
2100 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2102 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned int)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2105 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+fon.getOp().toString()+generateTemp(fm,fon.getRight(),lb)+";");
2106 } else if (fon.getOp().getOp()==Operation.ASSIGN)
2107 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2108 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2109 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2110 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2111 output.println(generateTemp(fm, fon.getDest(),lb)+" = -"+generateTemp(fm, fon.getLeft(),lb)+";");
2112 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2113 output.println(generateTemp(fm, fon.getDest(),lb)+" = !"+generateTemp(fm, fon.getLeft(),lb)+";");
2114 else if (fon.getOp().getOp()==Operation.COMP)
2115 output.println(generateTemp(fm, fon.getDest(),lb)+" = ~"+generateTemp(fm, fon.getLeft(),lb)+";");
2116 else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2117 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+"->fses==NULL;");
2119 output.println(generateTemp(fm, fon.getDest(),lb)+fon.getOp().toString()+generateTemp(fm, fon.getLeft(),lb)+";");
2122 private void generateFlatCastNode(FlatMethod fm, LocalityBinding lb, FlatCastNode fcn, PrintWriter output) {
2123 /* TODO: Do type check here */
2124 if (fcn.getType().isArray()) {
2126 } else if (fcn.getType().isClass())
2127 output.println(generateTemp(fm,fcn.getDst(),lb)+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc(),lb)+";");
2129 output.println(generateTemp(fm,fcn.getDst(),lb)+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc(),lb)+";");
2132 private void generateFlatLiteralNode(FlatMethod fm, LocalityBinding lb, FlatLiteralNode fln, PrintWriter output) {
2133 if (fln.getValue()==null)
2134 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2135 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2136 if (GENERATEPRECISEGC) {
2137 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2138 //Stash pointer in case of GC
2139 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2140 output.println(revertptr+"=trans->revertlist;");
2142 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(&"+localsprefix+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2143 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2144 //Stash pointer in case of GC
2145 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2146 output.println("trans->revertlist="+revertptr+";");
2149 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2151 } else if (fln.getType().isBoolean()) {
2152 if (((Boolean)fln.getValue()).booleanValue())
2153 output.println(generateTemp(fm, fln.getDst(),lb)+"=1;");
2155 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2156 } else if (fln.getType().isChar()) {
2157 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2158 output.println(generateTemp(fm, fln.getDst(),lb)+"='"+st+"';");
2159 } else if (fln.getType().isLong()) {
2160 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+"LL;");
2162 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+";");
2165 private void generateFlatReturnNode(FlatMethod fm, LocalityBinding lb, FlatReturnNode frn, PrintWriter output) {
2166 if (frn.getReturnTemp()!=null) {
2167 if (frn.getReturnTemp().getType().isPtr())
2168 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2170 output.println("return "+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2172 output.println("return;");
2175 //private void generateFlatCondBranch(FlatMethod fm, LocalityBinding lb, FlatCondBranch fcb, String label, PrintWriter output) {
2176 protected void generateFlatCondBranch(FlatMethod fm, LocalityBinding lb, FlatCondBranch fcb, String label, PrintWriter output) {
2177 output.println("if (!"+generateTemp(fm, fcb.getTest(),lb)+") goto "+label+";");
2180 /** This method generates header information for the method or
2181 * task referenced by the Descriptor des. */
2183 private void generateHeader(FlatMethod fm, LocalityBinding lb, Descriptor des, PrintWriter output) {
2185 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:des);
2186 MethodDescriptor md=null;
2187 TaskDescriptor task=null;
2188 if (des instanceof MethodDescriptor)
2189 md=(MethodDescriptor) des;
2191 task=(TaskDescriptor) des;
2193 ClassDescriptor cn=md!=null?md.getClassDesc():null;
2195 if (md!=null&&md.getReturnType()!=null) {
2196 if (md.getReturnType().isClass()||md.getReturnType().isArray())
2197 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2199 output.print(md.getReturnType().getSafeSymbol()+" ");
2201 //catch the constructor case
2202 output.print("void ");
2205 output.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2207 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2209 output.print(task.getSafeSymbol()+"(");
2211 boolean printcomma=false;
2212 if (GENERATEPRECISEGC) {
2215 output.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2217 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2219 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2223 if (state.DSM&&lb.isAtomic()) {
2226 output.print("transrecord_t * trans");
2232 for(int i=0;i<objectparams.numPrimitives();i++) {
2233 TempDescriptor temp=objectparams.getPrimitive(i);
2237 if (temp.getType().isClass()||temp.getType().isArray())
2238 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2240 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2242 output.println(") {");
2243 } else if (!GENERATEPRECISEGC) {
2244 /* Imprecise Task */
2245 output.println("void * parameterarray[]) {");
2246 /* Unpack variables */
2247 for(int i=0;i<objectparams.numPrimitives();i++) {
2248 TempDescriptor temp=objectparams.getPrimitive(i);
2249 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2251 for(int i=0;i<fm.numTags();i++) {
2252 TempDescriptor temp=fm.getTag(i);
2253 int offset=i+objectparams.numPrimitives();
2254 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2257 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2258 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2259 } else output.println(") {");
2262 public void generateFlatFlagActionNode(FlatMethod fm, LocalityBinding lb, FlatFlagActionNode ffan, PrintWriter output) {
2263 output.println("/* FlatFlagActionNode */");
2266 /* Process tag changes */
2267 Relation tagsettable=new Relation();
2268 Relation tagcleartable=new Relation();
2270 Iterator tagsit=ffan.getTempTagPairs();
2271 while (tagsit.hasNext()) {
2272 TempTagPair ttp=(TempTagPair) tagsit.next();
2273 TempDescriptor objtmp=ttp.getTemp();
2274 TagDescriptor tag=ttp.getTag();
2275 TempDescriptor tagtmp=ttp.getTagTemp();
2276 boolean tagstatus=ffan.getTagChange(ttp);
2278 tagsettable.put(objtmp, tagtmp);
2280 tagcleartable.put(objtmp, tagtmp);
2285 Hashtable flagandtable=new Hashtable();
2286 Hashtable flagortable=new Hashtable();
2288 /* Process flag changes */
2289 Iterator flagsit=ffan.getTempFlagPairs();
2290 while(flagsit.hasNext()) {
2291 TempFlagPair tfp=(TempFlagPair)flagsit.next();
2292 TempDescriptor temp=tfp.getTemp();
2293 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2294 FlagDescriptor flag=tfp.getFlag();
2296 //Newly allocate objects that don't set any flags case
2297 if (flagortable.containsKey(temp)) {
2301 flagortable.put(temp,new Integer(mask));
2303 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2304 boolean flagstatus=ffan.getFlagChange(tfp);
2307 if (flagortable.containsKey(temp)) {
2308 mask=((Integer)flagortable.get(temp)).intValue();
2311 flagortable.put(temp,new Integer(mask));
2313 int mask=0xFFFFFFFF;
2314 if (flagandtable.containsKey(temp)) {
2315 mask=((Integer)flagandtable.get(temp)).intValue();
2317 mask&=(0xFFFFFFFF^flagid);
2318 flagandtable.put(temp,new Integer(mask));
2324 HashSet flagtagset=new HashSet();
2325 flagtagset.addAll(flagortable.keySet());
2326 flagtagset.addAll(flagandtable.keySet());
2327 flagtagset.addAll(tagsettable.keySet());
2328 flagtagset.addAll(tagcleartable.keySet());
2330 Iterator ftit=flagtagset.iterator();
2331 while(ftit.hasNext()) {
2332 TempDescriptor temp=(TempDescriptor)ftit.next();
2335 Set tagtmps=tagcleartable.get(temp);
2336 if (tagtmps!=null) {
2337 Iterator tagit=tagtmps.iterator();
2338 while(tagit.hasNext()) {
2339 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2340 if (GENERATEPRECISEGC)
2341 output.println("tagclear(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2343 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2347 tagtmps=tagsettable.get(temp);
2348 if (tagtmps!=null) {
2349 Iterator tagit=tagtmps.iterator();
2350 while(tagit.hasNext()) {
2351 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2352 if (GENERATEPRECISEGC)
2353 output.println("tagset(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2355 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp, lb)+", "+generateTemp(fm,tagtmp, lb)+");");
2360 int andmask=0xFFFFFFF;
2362 if (flagortable.containsKey(temp))
2363 ormask=((Integer)flagortable.get(temp)).intValue();
2364 if (flagandtable.containsKey(temp))
2365 andmask=((Integer)flagandtable.get(temp)).intValue();
2366 /*if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2367 output.println("flagorandinit("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2369 output.println("flagorand("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2371 generateFlagOrAnd(ffan, fm, lb, temp, output, ormask, andmask);
2372 generateObjectDistribute(ffan, fm, lb, temp, output);
2376 protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp,
2377 PrintWriter output, int ormask, int andmask) {
2378 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2379 output.println("flagorandinit("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2381 output.println("flagorand("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2385 protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp, PrintWriter output) {
2386 output.println("enqueueObject("+generateTemp(fm, temp, lb)+");");
2389 void generateOptionalHeader(PrintWriter headers) {
2392 headers.println("#include \"task.h\"\n\n");
2393 headers.println("#ifndef _OPTIONAL_STRUCT_");
2394 headers.println("#define _OPTIONAL_STRUCT_");
2396 //STRUCT PREDICATEMEMBER
2397 headers.println("struct predicatemember{");
2398 headers.println("int type;");
2399 headers.println("int numdnfterms;");
2400 headers.println("int * flags;");
2401 headers.println("int numtags;");
2402 headers.println("int * tags;\n};\n\n");
2404 //STRUCT OPTIONALTASKDESCRIPTOR
2405 headers.println("struct optionaltaskdescriptor{");
2406 headers.println("struct taskdescriptor * task;");
2407 headers.println("int index;");
2408 headers.println("int numenterflags;");
2409 headers.println("int * enterflags;");
2410 headers.println("int numpredicatemembers;");
2411 headers.println("struct predicatemember ** predicatememberarray;");
2412 headers.println("};\n\n");
2414 //STRUCT TASKFAILURE
2415 headers.println("struct taskfailure {");
2416 headers.println("struct taskdescriptor * task;");
2417 headers.println("int index;");
2418 headers.println("int numoptionaltaskdescriptors;");
2419 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2421 //STRUCT FSANALYSISWRAPPER
2422 headers.println("struct fsanalysiswrapper{");
2423 headers.println("int flags;");
2424 headers.println("int numtags;");
2425 headers.println("int * tags;");
2426 headers.println("int numtaskfailures;");
2427 headers.println("struct taskfailure ** taskfailurearray;");
2428 headers.println("int numoptionaltaskdescriptors;");
2429 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2431 //STRUCT CLASSANALYSISWRAPPER
2432 headers.println("struct classanalysiswrapper{");
2433 headers.println("int type;");
2434 headers.println("int numotd;");
2435 headers.println("struct optionaltaskdescriptor ** otdarray;");
2436 headers.println("int numfsanalysiswrappers;");
2437 headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
2439 headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
2441 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
2442 while(taskit.hasNext()) {
2443 TaskDescriptor td=(TaskDescriptor)taskit.next();
2444 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
2449 //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
2450 int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
2451 int predicateindex = 0;
2452 //iterate through the classes concerned by the predicate
2453 Set c_vard = predicate.vardescriptors;
2454 Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
2457 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext();){
2458 VarDescriptor vard = (VarDescriptor)vard_it.next();
2459 TypeDescriptor typed = vard.getType();
2461 //generate for flags
2462 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
2463 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2465 if (fen_hashset!=null){
2466 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext();){
2467 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
2469 DNFFlag dflag=fen.getDNF();
2470 numberterms+=dflag.size();
2472 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
2474 for(int j=0;j<dflag.size();j++) {
2476 output.println(",");
2477 Vector term=dflag.get(j);
2480 for(int k=0;k<term.size();k++) {
2481 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
2482 FlagDescriptor fd=dfa.getFlag();
2483 boolean negated=dfa.getNegated();
2484 int flagid=1<<((Integer)flags.get(fd)).intValue();
2489 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
2494 output.println("};\n");
2497 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
2498 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2501 for(int j=0;j<tagel.numTags();j++) {
2503 output.println(",");
2504 TempDescriptor tmp=tagel.getTemp(j);
2505 if (!slotnumber.containsKey(tmp)) {
2506 Integer slotint=new Integer(current_slot++);
2507 slotnumber.put(tmp,slotint);
2509 int slot=slotnumber.get(tmp).intValue();
2510 output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
2512 numtags = tagel.numTags();
2514 output.println("};");
2516 //store the result into a predicatemember struct
2517 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2518 output.println("/*type*/"+typed.getClassDesc().getId()+",");
2519 output.println("/* number of dnf terms */"+numberterms+",");
2520 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2521 output.println("/* number of tag */"+numtags+",");
2522 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2523 output.println("};\n");
2528 //generate an array that stores the entire predicate
2529 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2530 for( int j = 0; j<predicateindex; j++){
2531 if( j != predicateindex-1)output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2532 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2534 output.println("};\n");
2535 return predicateindex;
2539 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
2540 generateOptionalHeader(headers);
2542 output.println("#include \"optionalstruct.h\"\n\n");
2543 output.println("#include \"stdlib.h\"\n");
2545 HashSet processedcd = new HashSet();
2547 Enumeration e = safeexecution.keys();
2548 while (e.hasMoreElements()) {
2551 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
2552 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp);//will be used several times
2554 //Generate the struct of optionals
2555 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2556 numotd = c_otd.size();
2557 if(maxotd<numotd) maxotd = numotd;
2558 if( !c_otd.isEmpty() ){
2559 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2560 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2562 //generate the int arrays for the predicate
2563 Predicate predicate = otd.predicate;
2564 int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
2565 TreeSet<Integer> fsset=new TreeSet<Integer>();
2566 //iterate through possible FSes corresponding to
2567 //the state when entering
2569 for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext();){
2570 FlagState fs = (FlagState)fses.next();
2572 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2573 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2574 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2577 fsset.add(new Integer(flagid));
2578 //tag information not needed because tag
2579 //changes are not tolerated.
2582 output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2583 boolean needcomma=false;
2584 for(Iterator<Integer> it=fsset.iterator();it.hasNext();) {
2587 output.println(it.next());
2590 output.println("};\n");
2593 //generate optionaltaskdescriptor that actually
2594 //includes exit fses, predicate and the task
2596 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2597 output.println("&task_"+otd.td.getSafeSymbol()+",");
2598 output.println("/*index*/"+otd.getIndex()+",");
2599 output.println("/*number of enter flags*/"+fsset.size()+",");
2600 output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2601 output.println("/*number of members */"+predicateindex+",");
2602 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2603 output.println("};\n");
2607 // if there are no optionals, there is no need to build the rest of the struct
2609 output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
2610 c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2611 if( !c_otd.isEmpty() ){
2612 boolean needcomma=false;
2613 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2614 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2616 output.println(",");
2618 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2621 output.println("};\n");
2623 //get all the possible flagstates reachable by an object
2624 Hashtable hashtbtemp = safeexecution.get(cdtemp);
2626 TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
2627 fsts.addAll(hashtbtemp.keySet());
2628 for(Iterator fsit=fsts.iterator();fsit.hasNext();) {
2629 FlagState fs = (FlagState)fsit.next();
2632 //get the set of OptionalTaskDescriptors corresponding
2633 HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
2634 //iterate through the OptionalTaskDescriptors and
2635 //store the pointers to the optionals struct (see on
2636 //top) into an array
2638 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
2639 for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext();){
2640 OptionalTaskDescriptor mm = mos.next();
2642 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
2644 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2647 output.println("};\n");
2649 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
2652 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2653 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2654 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2658 //process tag information
2661 boolean first = true;
2662 Enumeration tag_enum = fs.getTags();
2663 output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2664 while(tag_enum.hasMoreElements()){
2666 TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
2670 output.println(", ");
2671 output.println("/*tagid*/"+state.getTagId(tagd));
2673 output.println("};");
2675 Set<TaskIndex> tiset=sa.getTaskIndex(fs);
2676 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2677 TaskIndex ti=itti.next();
2681 Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
2683 output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
2684 boolean needcomma=false;
2685 for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator();otdit.hasNext();) {
2686 OptionalTaskDescriptor otd=otdit.next();
2690 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2692 output.println("};");
2694 output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
2695 output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
2696 output.print(ti.getIndex()+", ");
2697 output.print(otdset.size()+", ");
2698 output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
2699 output.println("};");
2702 tiset=sa.getTaskIndex(fs);
2703 boolean needcomma=false;
2705 output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2706 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2707 TaskIndex ti=itti.next();
2708 if (ti.isRuntime()) {
2715 output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
2717 output.println("};\n");
2719 //Store the result in fsanalysiswrapper
2721 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
2722 output.println("/*flag*/"+flagid+",");
2723 output.println("/* number of tags*/"+tagcounter+",");
2724 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2725 output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
2726 output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2727 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
2728 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
2729 output.println("};\n");
2733 //Build the array of fsanalysiswrappers
2734 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
2735 boolean needcomma=false;
2736 for(int i = 0; i<fscounter; i++){
2737 if (needcomma) output.print(",");
2738 output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
2741 output.println("};");
2743 //Build the classanalysiswrapper referring to the previous array
2744 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
2745 output.println("/*type*/"+cdtemp.getId()+",");
2746 output.println("/*numotd*/"+numotd+",");
2747 output.println("otdarray"+cdtemp.getSafeSymbol()+",");
2748 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
2749 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
2750 processedcd.add(cdtemp);
2753 //build an array containing every classes for which code has been build
2754 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
2755 for(int i=0;i<state.numClasses();i++) {
2756 ClassDescriptor cn=cdarray[i];
2759 if (processedcd.contains(cn))
2760 output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
2762 output.print("NULL");
2764 output.println("};");
2766 output.println("#define MAXOTD "+maxotd);
2767 headers.println("#endif");
2770 public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
2771 Relation r=new Relation();
2772 for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator();otdit.hasNext();) {
2773 OptionalTaskDescriptor otd=otdit.next();
2774 TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
2778 LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
2779 for(Iterator it=r.keySet().iterator();it.hasNext();) {
2780 Set s=r.get(it.next());
2781 for(Iterator it2=s.iterator();it2.hasNext();) {
2782 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();