2 import IR.Tree.FlagExpressionNode;
3 import IR.Tree.DNFFlag;
4 import IR.Tree.DNFFlagAtom;
5 import IR.Tree.TagExpressionList;
11 import Analysis.TaskStateAnalysis.FlagState;
12 import Analysis.TaskStateAnalysis.FlagComparator;
13 import Analysis.TaskStateAnalysis.OptionalTaskDescriptor;
14 import Analysis.TaskStateAnalysis.Predicate;
15 import Analysis.TaskStateAnalysis.SafetyAnalysis;
16 import Analysis.TaskStateAnalysis.TaskIndex;
17 import Analysis.Locality.LocalityAnalysis;
18 import Analysis.Locality.LocalityBinding;
19 import Analysis.Prefetch.*;
21 public class BuildCode {
24 Hashtable paramstable;
29 String localsprefix="___locals___";
30 String paramsprefix="___params___";
31 String oidstr="___nextobject___";
32 String nextobjstr="___nextobject___";
33 String localcopystr="___localcopy___";
34 public static boolean GENERATEPRECISEGC=false;
35 public static String PREFIX="";
36 public static String arraytype="ArrayObject";
37 public static int flagcount = 0;
40 //private int maxtaskparams=0;
41 protected int maxtaskparams=0;
42 private int maxcount=0;
43 ClassDescriptor[] cdarray;
44 TypeDescriptor[] arraytable;
45 LocalityAnalysis locality;
46 Hashtable<TempDescriptor, TempDescriptor> backuptable;
47 Hashtable<LocalityBinding, TempDescriptor> reverttable;
50 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa) {
51 this(st, temptovar, typeutil, null, sa);
54 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality) {
55 this(st, temptovar, typeutil, locality, null);
58 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality, SafetyAnalysis sa) {
61 this.temptovar=temptovar;
62 paramstable=new Hashtable();
63 tempstable=new Hashtable();
64 fieldorder=new Hashtable();
65 flagorder=new Hashtable();
66 this.typeutil=typeutil;
67 virtualcalls=new Virtual(state,locality);
69 this.locality=locality;
70 this.backuptable=new Hashtable<TempDescriptor, TempDescriptor>();
71 this.reverttable=new Hashtable<LocalityBinding, TempDescriptor>();
75 /** The buildCode method outputs C code for all the methods. The Flat
76 * versions of the methods must already be generated and stored in
77 * the State object. */
79 public void buildCode() {
80 /* Create output streams to write to */
81 PrintWriter outclassdefs=null;
82 PrintWriter outstructs=null;
83 PrintWriter outrepairstructs=null;
84 PrintWriter outmethodheader=null;
85 PrintWriter outmethod=null;
86 PrintWriter outvirtual=null;
87 PrintWriter outtask=null;
88 PrintWriter outtaskdefs=null;
89 PrintWriter outoptionalarrays=null;
90 PrintWriter optionalheaders=null;
93 outstructs=new PrintWriter(new FileOutputStream(PREFIX+"structdefs.h"), true);
94 outmethodheader=new PrintWriter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
95 outclassdefs=new PrintWriter(new FileOutputStream(PREFIX+"classdefs.h"), true);
96 outmethod=new PrintWriter(new FileOutputStream(PREFIX+"methods.c"), true);
97 outvirtual=new PrintWriter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
99 outtask=new PrintWriter(new FileOutputStream(PREFIX+"task.h"), true);
100 outtaskdefs=new PrintWriter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
102 outoptionalarrays=new PrintWriter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
103 optionalheaders=new PrintWriter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
106 if (state.structfile!=null) {
107 outrepairstructs=new PrintWriter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
109 } catch (Exception e) {
114 /* Build the virtual dispatch tables */
115 buildVirtualTables(outvirtual);
117 /* Output includes */
118 outmethodheader.println("#ifndef METHODHEADERS_H");
119 outmethodheader.println("#define METHODHEADERS_H");
120 outmethodheader.println("#include \"structdefs.h\"");
122 outmethodheader.println("#include \"dstm.h\"");
124 /* Output Structures */
125 outputStructs(outstructs);
127 // Output the C class declarations
128 // These could mutually reference each other
129 outputClassDeclarations(outclassdefs);
131 // Output function prototypes and structures for parameters
132 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
133 while(it.hasNext()) {
134 ClassDescriptor cn=(ClassDescriptor)it.next();
135 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader);
137 outclassdefs.close();
140 /* Map flags to integers */
141 /* The runtime keeps track of flags using these integers */
142 it=state.getClassSymbolTable().getDescriptorsIterator();
143 while(it.hasNext()) {
144 ClassDescriptor cn=(ClassDescriptor)it.next();
148 generateTaskStructs(outstructs, outmethodheader);
150 /* Outputs generic task structures if this is a task
152 outputTaskTypes(outtask);
155 /* Build the actual methods */
156 outputMethods(outmethod);
159 /* Output code for tasks */
160 outputTaskCode(outtaskdefs, outmethod);
162 /* Record maximum number of task parameters */
163 outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
164 } else if (state.main!=null) {
165 /* Generate main method */
166 outputMainMethod(outmethod);
169 /* Generate information for task with optional parameters */
170 if (state.TASK&&state.OPTIONAL){
171 generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
172 outoptionalarrays.close();
175 /* Output structure definitions for repair tool */
176 if (state.structfile!=null) {
177 buildRepairStructs(outrepairstructs);
178 outrepairstructs.close();
182 outmethodheader.println("#endif");
183 outmethodheader.close();
185 outstructs.println("#endif");
189 /* This code just generates the main C method for java programs.
190 * The main C method packs up the arguments into a string array
191 * and passes it to the java main method. */
193 private void outputMainMethod(PrintWriter outmethod) {
194 outmethod.println("int main(int argc, const char *argv[]) {");
195 outmethod.println(" int i;");
196 if (state.THREAD||state.DSM) {
197 outmethod.println("initializethreads();");
200 outmethod.println("if (dstmStartup(argv[1])) {");
201 if (GENERATEPRECISEGC) {
202 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-2);");
204 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-2);");
207 if (GENERATEPRECISEGC) {
208 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
210 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
214 outmethod.println(" for(i=2;i<argc;i++) {");
216 outmethod.println(" for(i=1;i<argc;i++) {");
217 outmethod.println(" int length=strlen(argv[i]);");
218 if (GENERATEPRECISEGC) {
219 outmethod.println(" struct ___String___ *newstring=NewString(NULL, argv[i], length);");
221 outmethod.println(" struct ___String___ *newstring=NewString(argv[i], length);");
224 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-2]=newstring;");
226 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
227 outmethod.println(" }");
230 MethodDescriptor md=typeutil.getMain();
231 ClassDescriptor cd=typeutil.getMainClass();
233 outmethod.println(" {");
234 if (GENERATEPRECISEGC) {
236 outmethod.print(" struct "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
238 outmethod.print(" struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
239 outmethod.println("1, NULL,"+"stringarray};");
241 outmethod.println(" "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
243 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
246 outmethod.println(" "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
248 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
250 outmethod.println(" }");
253 outmethod.println("}");
256 if (state.THREAD||state.DSM) {
257 outmethod.println("pthread_mutex_lock(&gclistlock);");
258 outmethod.println("threadcount--;");
259 outmethod.println("pthread_cond_signal(&gccond);");
260 outmethod.println("pthread_mutex_unlock(&gclistlock);");
262 outmethod.println("pthread_exit(NULL);");
265 outmethod.println("printf(\"numTransAbort= %d\\n\", numTransAbort);");
266 outmethod.println("printf(\"numTransCommit= %d\\n\", numTransCommit);");
267 outmethod.println("}");
271 /* This method outputs code for each task. */
273 private void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
274 /* Compile task based program */
275 outtaskdefs.println("#include \"task.h\"");
276 outtaskdefs.println("#include \"methodheaders.h\"");
277 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
278 while(taskit.hasNext()) {
279 TaskDescriptor td=(TaskDescriptor)taskit.next();
280 FlatMethod fm=state.getMethodFlat(td);
281 generateFlatMethod(fm, null, outmethod);
282 generateTaskDescriptor(outtaskdefs, fm, td);
285 //Output task descriptors
286 taskit=state.getTaskSymbolTable().getDescriptorsIterator();
287 outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
289 while(taskit.hasNext()) {
290 TaskDescriptor td=(TaskDescriptor)taskit.next();
294 outtaskdefs.println(",");
295 outtaskdefs.print("&task_"+td.getSafeSymbol());
297 outtaskdefs.println("};");
299 outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
302 /* This method outputs most of the methods.c file. This includes
303 * some standard includes and then an array with the sizes of
304 * objets and array that stores supertype and then the code for
305 * the Java methods.. */
307 //private void outputMethods(PrintWriter outmethod) {
308 protected void outputMethods(PrintWriter outmethod) {
309 outmethod.println("#include \"methodheaders.h\"");
310 outmethod.println("#include \"virtualtable.h\"");
311 outmethod.println("#include <runtime.h>");
313 outmethod.println("#include \"localobjects.h\"");
315 if(state.MULTICORE) {
316 outmethod.println("#include \"task.h\"");
318 if (state.THREAD||state.DSM)
319 outmethod.println("#include <thread.h>");
320 if (state.main!=null) {
321 outmethod.println("#include <string.h>");
323 if (state.CONSCHECK) {
324 outmethod.println("#include \"checkers.h\"");
326 //Store the sizes of classes & array elements
327 generateSizeArray(outmethod);
329 //Store table of supertypes
330 generateSuperTypeTable(outmethod);
332 //Store the layout of classes
333 generateLayoutStructs(outmethod);
335 /* Generate code for methods */
337 for(Iterator<LocalityBinding> lbit=locality.getLocalityBindings().iterator();lbit.hasNext();) {
338 LocalityBinding lb=lbit.next();
339 MethodDescriptor md=lb.getMethod();
340 FlatMethod fm=state.getMethodFlat(md);
341 if (!md.getModifiers().isNative()) {
342 generateFlatMethod(fm, lb, outmethod);
346 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
347 while(classit.hasNext()) {
348 ClassDescriptor cn=(ClassDescriptor)classit.next();
349 Iterator methodit=cn.getMethods();
350 while(methodit.hasNext()) {
351 /* Classify parameters */
352 MethodDescriptor md=(MethodDescriptor)methodit.next();
353 FlatMethod fm=state.getMethodFlat(md);
354 if (!md.getModifiers().isNative()) {
355 generateFlatMethod(fm, null, outmethod);
362 //private void outputStructs(PrintWriter outstructs) {
363 protected void outputStructs(PrintWriter outstructs) {
364 outstructs.println("#ifndef STRUCTDEFS_H");
365 outstructs.println("#define STRUCTDEFS_H");
366 outstructs.println("#include \"classdefs.h\"");
368 /* Output #defines that the runtime uses to determine type
369 * numbers for various objects it needs */
370 outstructs.println("#define MAXCOUNT "+maxcount);
372 LocalityBinding lb=new LocalityBinding(typeutil.getRun(), false);
373 lb.setGlobalThis(LocalityAnalysis.GLOBAL);
374 outstructs.println("#define RUNMETHOD "+virtualcalls.getLocalityNumber(lb));
377 outstructs.println("#define STRINGARRAYTYPE "+
378 (state.getArrayNumber(
379 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
381 outstructs.println("#define OBJECTARRAYTYPE "+
382 (state.getArrayNumber(
383 (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
386 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
387 outstructs.println("#define CHARARRAYTYPE "+
388 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
390 outstructs.println("#define BYTEARRAYTYPE "+
391 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
393 outstructs.println("#define BYTEARRAYARRAYTYPE "+
394 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
396 outstructs.println("#define NUMCLASSES "+state.numClasses());
398 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
399 outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
400 outstructs.println("#define TAGARRAYTYPE "+
401 (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
405 //private void outputClassDeclarations(PrintWriter outclassdefs) {
406 protected void outputClassDeclarations(PrintWriter outclassdefs) {
407 if (state.THREAD||state.DSM)
408 outclassdefs.println("#include <pthread.h>");
410 outclassdefs.println("#include \"optionalstruct.h\"");
411 outclassdefs.println("struct "+arraytype+";");
412 /* Start by declaring all structs */
413 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
414 while(it.hasNext()) {
415 ClassDescriptor cn=(ClassDescriptor)it.next();
416 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
418 outclassdefs.println("");
419 //Print out definition for array type
420 outclassdefs.println("struct "+arraytype+" {");
421 outclassdefs.println(" int type;");
423 outclassdefs.println(" pthread_t tid;");
424 outclassdefs.println(" void * lockentry;");
425 outclassdefs.println(" int lockcount;");
428 outclassdefs.println(" int flag;");
429 if(!state.MULTICORE) {
430 outclassdefs.println(" void * flagptr;");
432 outclassdefs.println(" int isolate;"); // indicate if this object is shared or not
433 outclassdefs.println(" int version;");
434 outclassdefs.println(" struct ___Object___ * original;");
437 outclassdefs.println(" int numfses;");
438 outclassdefs.println(" int * fses;");
441 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs);
443 outclassdefs.println(" int ___length___;");
444 outclassdefs.println("};\n");
445 outclassdefs.println("extern int classsize[];");
446 outclassdefs.println("extern int hasflags[];");
447 outclassdefs.println("extern unsigned int * pointerarray[];");
448 outclassdefs.println("extern int supertypes[];");
451 /** Prints out definitions for generic task structures */
453 private void outputTaskTypes(PrintWriter outtask) {
454 outtask.println("#ifndef _TASK_H");
455 outtask.println("#define _TASK_H");
456 outtask.println("struct parameterdescriptor {");
457 outtask.println("int type;");
458 outtask.println("int numberterms;");
459 outtask.println("int *intarray;");
460 outtask.println("void * queue;");
461 outtask.println("int numbertags;");
462 outtask.println("int *tagarray;");
463 outtask.println("};");
465 outtask.println("struct taskdescriptor {");
466 outtask.println("void * taskptr;");
467 outtask.println("int numParameters;");
468 outtask.println("int numTotal;");
469 outtask.println("struct parameterdescriptor **descriptorarray;");
470 outtask.println("char * name;");
471 outtask.println("};");
472 outtask.println("extern struct taskdescriptor * taskarray[];");
473 outtask.println("extern numtasks;");
474 outtask.println("#endif");
478 private void buildRepairStructs(PrintWriter outrepairstructs) {
479 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
480 while(classit.hasNext()) {
481 ClassDescriptor cn=(ClassDescriptor)classit.next();
482 outrepairstructs.println("structure "+cn.getSymbol()+" {");
483 outrepairstructs.println(" int __type__;");
485 outrepairstructs.println(" int __flag__;");
486 if(!state.MULTICORE) {
487 outrepairstructs.println(" int __flagptr__;");
490 printRepairStruct(cn, outrepairstructs);
491 outrepairstructs.println("}\n");
494 for(int i=0;i<state.numArrays();i++) {
495 TypeDescriptor tdarray=arraytable[i];
496 TypeDescriptor tdelement=tdarray.dereference();
497 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
498 outrepairstructs.println(" int __type__;");
499 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
500 outrepairstructs.println(" int length;");
502 // Need to add support to repair tool for this
503 if (tdelement.isClass()||tdelement.isArray())
504 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" * elem[this.length];");
506 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" elem[this.length];");
508 outrepairstructs.println("}\n");
512 private void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
513 ClassDescriptor sp=cn.getSuperDesc();
515 printRepairStruct(sp, output);
517 Vector fields=(Vector)fieldorder.get(cn);
519 for(int i=0;i<fields.size();i++) {
520 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
521 if (fd.getType().isArray()) {
522 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
523 } else if (fd.getType().isClass())
524 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
525 else if (fd.getType().isFloat())
526 output.println(" int "+fd.getSymbol()+"; /* really float */");
528 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
532 /** This method outputs TaskDescriptor information */
533 private void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
534 for (int i=0;i<task.numParameters();i++) {
535 VarDescriptor param_var=task.getParameter(i);
536 TypeDescriptor param_type=task.getParamType(i);
537 FlagExpressionNode param_flag=task.getFlag(param_var);
538 TagExpressionList param_tag=task.getTag(param_var);
541 if (param_flag==null) {
542 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
543 output.println("0x0, 0x0 };");
546 DNFFlag dflag=param_flag.getDNF();
547 dnfterms=dflag.size();
549 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
550 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
551 for(int j=0;j<dflag.size();j++) {
554 Vector term=dflag.get(j);
557 for(int k=0;k<term.size();k++) {
558 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
559 FlagDescriptor fd=dfa.getFlag();
560 boolean negated=dfa.getNegated();
561 int flagid=1<<((Integer)flags.get(fd)).intValue();
566 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
568 output.println("};");
571 output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
572 //BUG...added next line to fix, test with any task program
574 for(int j=0;j<param_tag.numTags();j++) {
577 /* for each tag we need */
578 /* which slot it is */
579 /* what type it is */
580 TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
581 TempDescriptor tmp=param_tag.getTemp(j);
582 int slot=fm.getTagInt(tmp);
583 output.println(slot+", "+state.getTagId(tvd.getTag()));
585 output.println("};");
587 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
588 output.println("/* type */"+param_type.getClassDesc().getId()+",");
589 output.println("/* number of DNF terms */"+dnfterms+",");
590 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
591 output.println("0,");
592 //BUG, added next line to fix and else statement...test
593 //with any task program
595 output.println("/* number of tags */"+param_tag.numTags()+",");
597 output.println("/* number of tags */ 0,");
598 output.println("parametertag_"+i+"_"+task.getSafeSymbol());
599 output.println("};");
603 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
604 for (int i=0;i<task.numParameters();i++) {
607 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
609 output.println("};");
611 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
612 output.println("&"+task.getSafeSymbol()+",");
613 output.println("/* number of parameters */" +task.numParameters() + ",");
614 int numtotal=task.numParameters()+fm.numTags();
615 output.println("/* number total parameters */" +numtotal + ",");
616 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
617 output.println("\""+task.getSymbol()+"\"");
618 output.println("};");
622 /** The buildVirtualTables method outputs the virtual dispatch
623 * tables for methods. */
625 //private void buildVirtualTables(PrintWriter outvirtual) {
626 protected void buildVirtualTables(PrintWriter outvirtual) {
627 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
628 while(classit.hasNext()) {
629 ClassDescriptor cd=(ClassDescriptor)classit.next();
630 if (virtualcalls.getMethodCount(cd)>maxcount)
631 maxcount=virtualcalls.getMethodCount(cd);
633 MethodDescriptor[][] virtualtable=null;
634 LocalityBinding[][] lbvirtualtable=null;
636 lbvirtualtable=new LocalityBinding[state.numClasses()+state.numArrays()][maxcount];
638 virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
640 /* Fill in virtual table */
641 classit=state.getClassSymbolTable().getDescriptorsIterator();
642 while(classit.hasNext()) {
643 ClassDescriptor cd=(ClassDescriptor)classit.next();
645 fillinRow(cd, lbvirtualtable, cd.getId());
647 fillinRow(cd, virtualtable, cd.getId());
650 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
651 Iterator arrayit=state.getArrayIterator();
652 while(arrayit.hasNext()) {
653 TypeDescriptor td=(TypeDescriptor)arrayit.next();
654 int id=state.getArrayNumber(td);
656 fillinRow(objectcd, lbvirtualtable, id+state.numClasses());
658 fillinRow(objectcd, virtualtable, id+state.numClasses());
661 outvirtual.print("void * virtualtable[]={");
662 boolean needcomma=false;
663 for(int i=0;i<state.numClasses()+state.numArrays();i++) {
664 for(int j=0;j<maxcount;j++) {
666 outvirtual.print(", ");
667 if (state.DSM&&lbvirtualtable[i][j]!=null) {
668 LocalityBinding lb=lbvirtualtable[i][j];
669 MethodDescriptor md=lb.getMethod();
670 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
671 } else if (!state.DSM&&virtualtable[i][j]!=null) {
672 MethodDescriptor md=virtualtable[i][j];
673 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
675 outvirtual.print("0");
679 outvirtual.println("");
681 outvirtual.println("};");
685 private void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
686 /* Get inherited methods */
687 if (cd.getSuperDesc()!=null)
688 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
689 /* Override them with our methods */
690 for(Iterator it=cd.getMethods();it.hasNext();) {
691 MethodDescriptor md=(MethodDescriptor)it.next();
692 if (md.isStatic()||md.getReturnType()==null)
694 int methodnum=virtualcalls.getMethodNumber(md);
695 virtualtable[rownum][methodnum]=md;
699 private void fillinRow(ClassDescriptor cd, LocalityBinding[][] virtualtable, int rownum) {
700 /* Get inherited methods */
701 if (cd.getSuperDesc()!=null)
702 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
703 /* Override them with our methods */
704 if (locality.getClassBindings(cd)!=null)
705 for(Iterator<LocalityBinding> lbit=locality.getClassBindings(cd).iterator();lbit.hasNext();) {
706 LocalityBinding lb=lbit.next();
707 MethodDescriptor md=lb.getMethod();
708 //Is the method static or a constructor
709 if (md.isStatic()||md.getReturnType()==null)
711 int methodnum=virtualcalls.getLocalityNumber(lb);
712 virtualtable[rownum][methodnum]=lb;
717 /** Generate array that contains the sizes of class objects. The
718 * object allocation functions in the runtime use this
721 private void generateSizeArray(PrintWriter outclassdefs) {
722 outclassdefs.print("int numTransAbort = 0;");
723 outclassdefs.print("int numTransCommit = 0;");
724 outclassdefs.print("int classsize[]={");
725 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
726 cdarray=new ClassDescriptor[state.numClasses()];
727 while(it.hasNext()) {
728 ClassDescriptor cd=(ClassDescriptor)it.next();
729 cdarray[cd.getId()]=cd;
731 boolean needcomma=false;
732 for(int i=0;i<state.numClasses();i++) {
734 outclassdefs.print(", ");
735 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
739 arraytable=new TypeDescriptor[state.numArrays()];
741 Iterator arrayit=state.getArrayIterator();
742 while(arrayit.hasNext()) {
743 TypeDescriptor td=(TypeDescriptor)arrayit.next();
744 int id=state.getArrayNumber(td);
748 for(int i=0;i<state.numArrays();i++) {
750 outclassdefs.print(", ");
751 TypeDescriptor tdelement=arraytable[i].dereference();
752 if (tdelement.isArray()||tdelement.isClass())
753 outclassdefs.print("sizeof(void *)");
755 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
759 outclassdefs.println("};");
762 /** Constructs params and temp objects for each method or task.
763 * These objects tell the compiler which temps need to be
766 //private void generateTempStructs(FlatMethod fm, LocalityBinding lb) {
767 protected void generateTempStructs(FlatMethod fm, LocalityBinding lb) {
768 MethodDescriptor md=fm.getMethod();
769 TaskDescriptor task=fm.getTask();
770 Set<TempDescriptor> saveset=lb!=null?locality.getTempSet(lb):null;
771 ParamsObject objectparams=md!=null?new ParamsObject(md,tag++):new ParamsObject(task, tag++);
774 paramstable.put(lb, objectparams);
776 paramstable.put(md, objectparams);
778 paramstable.put(task, objectparams);
780 for(int i=0;i<fm.numParameters();i++) {
781 TempDescriptor temp=fm.getParameter(i);
782 TypeDescriptor type=temp.getType();
783 if (type.isPtr()&&GENERATEPRECISEGC)
784 objectparams.addPtr(temp);
786 objectparams.addPrim(temp);
787 if(lb!=null&&saveset.contains(temp)) {
788 backuptable.put(temp, temp.createNew());
792 for(int i=0;i<fm.numTags();i++) {
793 TempDescriptor temp=fm.getTag(i);
794 if (GENERATEPRECISEGC)
795 objectparams.addPtr(temp);
797 objectparams.addPrim(temp);
800 TempObject objecttemps=md!=null?new TempObject(objectparams,md,tag++):new TempObject(objectparams, task, tag++);
802 tempstable.put(lb, objecttemps);
804 tempstable.put(md, objecttemps);
806 tempstable.put(task, objecttemps);
808 for(Iterator nodeit=fm.getNodeSet().iterator();nodeit.hasNext();) {
809 FlatNode fn=(FlatNode)nodeit.next();
810 TempDescriptor[] writes=fn.writesTemps();
811 for(int i=0;i<writes.length;i++) {
812 TempDescriptor temp=writes[i];
813 TypeDescriptor type=temp.getType();
814 if (type.isPtr()&&GENERATEPRECISEGC)
815 objecttemps.addPtr(temp);
817 objecttemps.addPrim(temp);
818 if(lb!=null&&saveset.contains(temp)&&
819 !backuptable.containsKey(temp))
820 backuptable.put(temp, temp.createNew());
824 /* Create backup temps */
826 for(Iterator<TempDescriptor> tmpit=backuptable.values().iterator();tmpit.hasNext();) {
827 TempDescriptor tmp=tmpit.next();
828 TypeDescriptor type=tmp.getType();
829 if (type.isPtr()&&GENERATEPRECISEGC)
830 objecttemps.addPtr(tmp);
832 objecttemps.addPrim(tmp);
834 /* Create temp to hold revert table */
835 if (lb.getHasAtomic()||lb.isAtomic()) {
836 TempDescriptor reverttmp=new TempDescriptor("revertlist", typeutil.getClass(TypeUtil.ObjectClass));
837 if (GENERATEPRECISEGC)
838 objecttemps.addPtr(reverttmp);
840 objecttemps.addPrim(reverttmp);
841 reverttable.put(lb, reverttmp);
846 /** This method outputs the following information about classes
848 * (1) For classes, what are the locations of pointers.
849 * (2) For arrays, does the array contain pointers or primitives.
850 * (3) For classes, does the class contain flags.
853 private void generateLayoutStructs(PrintWriter output) {
854 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
855 while(it.hasNext()) {
856 ClassDescriptor cn=(ClassDescriptor)it.next();
857 output.println("unsigned int "+cn.getSafeSymbol()+"_pointers[]={");
858 Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
860 while(allit.hasNext()) {
861 FieldDescriptor fd=(FieldDescriptor)allit.next();
862 TypeDescriptor type=fd.getType();
863 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
869 allit=cn.getFieldTable().getAllDescriptorsIterator();
870 while(allit.hasNext()) {
871 FieldDescriptor fd=(FieldDescriptor)allit.next();
872 TypeDescriptor type=fd.getType();
873 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
877 output.print("((unsigned int)&(((struct "+cn.getSafeSymbol() +" *)0)->"+fd.getSafeSymbol()+"))");
880 output.println("};");
882 output.println("unsigned int * pointerarray[]={");
883 boolean needcomma=false;
884 for(int i=0;i<state.numClasses();i++) {
885 ClassDescriptor cn=cdarray[i];
889 output.print(cn.getSafeSymbol()+"_pointers");
892 for(int i=0;i<state.numArrays();i++) {
894 output.println(", ");
895 TypeDescriptor tdelement=arraytable[i].dereference();
896 if (tdelement.isArray()||tdelement.isClass())
897 output.print("((unsigned int *)1)");
903 output.println("};");
905 output.println("int hasflags[]={");
906 for(int i=0;i<state.numClasses();i++) {
907 ClassDescriptor cn=cdarray[i];
909 output.println(", ");
916 output.println("};");
919 /** Print out table to give us supertypes */
920 private void generateSuperTypeTable(PrintWriter output) {
921 output.println("int supertypes[]={");
922 boolean needcomma=false;
923 for(int i=0;i<state.numClasses();i++) {
924 ClassDescriptor cn=cdarray[i];
928 if (cn.getSuperDesc()!=null) {
929 ClassDescriptor cdsuper=cn.getSuperDesc();
930 output.print(cdsuper.getId());
934 output.println("};");
937 /** Force consistent field ordering between inherited classes. */
939 private void printClassStruct(ClassDescriptor cn, PrintWriter classdefout) {
941 ClassDescriptor sp=cn.getSuperDesc();
943 printClassStruct(sp, classdefout);
945 if (!fieldorder.containsKey(cn)) {
946 Vector fields=new Vector();
947 fieldorder.put(cn,fields);
948 if (sp==null&&!state.TASK) {
949 fields.add(cn.getFieldTable().get("cachedCode"));
951 Iterator fieldit=cn.getFields();
952 while(fieldit.hasNext()) {
953 FieldDescriptor fd=(FieldDescriptor)fieldit.next();
954 if ((sp==null||!sp.getFieldTable().contains(fd.getSymbol()))&&
955 (!fd.getSymbol().equals("cachedCode")||state.TASK))
959 Vector fields=(Vector)fieldorder.get(cn);
961 for(int i=0;i<fields.size();i++) {
962 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
963 if (fd.getType().isClass()||fd.getType().isArray())
964 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
966 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
971 /* Map flags to integers consistently between inherited
974 //private void mapFlags(ClassDescriptor cn) {
975 protected void mapFlags(ClassDescriptor cn) {
976 ClassDescriptor sp=cn.getSuperDesc();
980 if (!flagorder.containsKey(cn)) {
981 Hashtable flags=new Hashtable();
982 flagorder.put(cn,flags);
984 Hashtable superflags=(Hashtable)flagorder.get(sp);
985 Iterator superflagit=superflags.keySet().iterator();
986 while(superflagit.hasNext()) {
987 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
988 Integer number=(Integer)superflags.get(fd);
989 flags.put(fd, number);
990 if ((number.intValue()+1)>max)
991 max=number.intValue()+1;
995 Iterator flagit=cn.getFlags();
996 while(flagit.hasNext()) {
997 FlagDescriptor fd=(FlagDescriptor)flagit.next();
998 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
999 flags.put(fd, new Integer(max++));
1005 /** This function outputs (1) structures that parameters are
1006 * passed in (when PRECISE GC is enabled) and (2) function
1007 * prototypes for the methods */
1009 //private void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
1010 protected void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
1011 /* Output class structure */
1012 classdefout.println("struct "+cn.getSafeSymbol()+" {");
1013 classdefout.println(" int type;");
1015 classdefout.println(" pthread_t tid;");
1016 classdefout.println(" void * lockentry;");
1017 classdefout.println(" int lockcount;");
1021 classdefout.println(" int flag;");
1022 if((!state.MULTICORE) || (cn.getSymbol().equals("TagDescriptor"))) {
1023 classdefout.println(" void * flagptr;");
1024 } else if (state.MULTICORE){
1025 classdefout.println(" int isolate;"); // indicate if this object is shared or not
1026 classdefout.println(" int version;");
1027 classdefout.println(" struct ___Object___ * original;");
1029 if (state.OPTIONAL){
1030 classdefout.println(" int numfses;");
1031 classdefout.println(" int * fses;");
1034 printClassStruct(cn, classdefout);
1035 classdefout.println("};\n");
1038 /* Cycle through LocalityBindings */
1039 HashSet<MethodDescriptor> nativemethods=new HashSet<MethodDescriptor>();
1040 Set<LocalityBinding> lbset=locality.getClassBindings(cn);
1042 for(Iterator<LocalityBinding> lbit=lbset.iterator();lbit.hasNext();) {
1043 LocalityBinding lb=lbit.next();
1044 MethodDescriptor md=lb.getMethod();
1045 if (md.getModifiers().isNative()) {
1046 //make sure we only print a native method once
1047 if (nativemethods.contains(md)) {
1048 FlatMethod fm=state.getMethodFlat(md);
1049 generateTempStructs(fm, lb);
1052 nativemethods.add(md);
1054 generateMethod(cn, md, lb, headersout, output);
1057 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1058 MethodDescriptor md=(MethodDescriptor)methodit.next();
1059 if (md.getModifiers().isNative()&&!nativemethods.contains(md)) {
1060 //Need to build param structure for library code
1061 FlatMethod fm=state.getMethodFlat(md);
1062 generateTempStructs(fm, null);
1063 generateMethodParam(cn, md, null, output);
1068 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1069 MethodDescriptor md=(MethodDescriptor)methodit.next();
1070 generateMethod(cn, md, null, headersout, output);
1074 private void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter output) {
1075 /* Output parameter structure */
1076 if (GENERATEPRECISEGC) {
1077 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1078 if (state.DSM&&lb!=null)
1079 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1081 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1082 output.println(" int size;");
1083 output.println(" void * next;");
1084 for(int i=0;i<objectparams.numPointers();i++) {
1085 TempDescriptor temp=objectparams.getPointer(i);
1086 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1088 output.println("};\n");
1093 private void generateMethod(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter headersout, PrintWriter output) {
1094 FlatMethod fm=state.getMethodFlat(md);
1095 generateTempStructs(fm, lb);
1097 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1098 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md);
1100 generateMethodParam(cn, md, lb, output);
1102 /* Output temp structure */
1103 if (GENERATEPRECISEGC) {
1105 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1107 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1108 output.println(" int size;");
1109 output.println(" void * next;");
1110 for(int i=0;i<objecttemps.numPointers();i++) {
1111 TempDescriptor temp=objecttemps.getPointer(i);
1112 if (temp.getType().isNull())
1113 output.println(" void * "+temp.getSafeSymbol()+";");
1115 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1117 output.println("};\n");
1120 /********* Output method declaration ***********/
1122 /* First the return type */
1123 if (md.getReturnType()!=null) {
1124 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1125 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1127 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1129 //catch the constructor case
1130 headersout.print("void ");
1132 /* Next the method name */
1134 headersout.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1136 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1138 boolean printcomma=false;
1139 if (GENERATEPRECISEGC) {
1141 headersout.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1143 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1147 if (state.DSM&&lb.isAtomic()&&!md.getModifiers().isNative()) {
1149 headersout.print(", ");
1150 headersout.print("transrecord_t * trans");
1154 /* Output parameter list*/
1155 for(int i=0;i<objectparams.numPrimitives();i++) {
1156 TempDescriptor temp=objectparams.getPrimitive(i);
1158 headersout.print(", ");
1160 if (temp.getType().isClass()||temp.getType().isArray())
1161 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1163 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1165 headersout.println(");\n");
1169 /** This function outputs (1) structures that parameters are
1170 * passed in (when PRECISE GC is enabled) and (2) function
1171 * prototypes for the tasks */
1173 private void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1174 /* Cycle through tasks */
1175 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1177 while(taskit.hasNext()) {
1178 /* Classify parameters */
1179 TaskDescriptor task=(TaskDescriptor)taskit.next();
1180 FlatMethod fm=state.getMethodFlat(task);
1181 generateTempStructs(fm, null);
1183 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1184 TempObject objecttemps=(TempObject) tempstable.get(task);
1186 /* Output parameter structure */
1187 if (GENERATEPRECISEGC) {
1188 output.println("struct "+task.getSafeSymbol()+"_params {");
1190 output.println(" int size;");
1191 output.println(" void * next;");
1192 for(int i=0;i<objectparams.numPointers();i++) {
1193 TempDescriptor temp=objectparams.getPointer(i);
1194 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1197 output.println("};\n");
1198 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1199 maxtaskparams=objectparams.numPointers()+fm.numTags();
1203 /* Output temp structure */
1204 if (GENERATEPRECISEGC) {
1205 output.println("struct "+task.getSafeSymbol()+"_locals {");
1206 output.println(" int size;");
1207 output.println(" void * next;");
1208 for(int i=0;i<objecttemps.numPointers();i++) {
1209 TempDescriptor temp=objecttemps.getPointer(i);
1210 if (temp.getType().isNull())
1211 output.println(" void * "+temp.getSafeSymbol()+";");
1212 else if(temp.getType().isTag())
1213 output.println(" struct "+
1214 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1216 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1218 output.println("};\n");
1221 /* Output task declaration */
1222 headersout.print("void " + task.getSafeSymbol()+"(");
1224 boolean printcomma=false;
1225 if (GENERATEPRECISEGC) {
1226 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1228 headersout.print("void * parameterarray[]");
1229 headersout.println(");\n");
1233 /***** Generate code for FlatMethod fm. *****/
1235 private void generateFlatMethod(FlatMethod fm, LocalityBinding lb, PrintWriter output) {
1236 if (State.PRINTFLAT)
1237 System.out.println(fm.printMethod());
1238 MethodDescriptor md=fm.getMethod();
1240 TaskDescriptor task=fm.getTask();
1242 ClassDescriptor cn=md!=null?md.getClassDesc():null;
1244 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:md!=null?md:task);
1245 generateHeader(fm, lb, md!=null?md:task,output);
1246 TempObject objecttemp=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1247 if (state.DSM&&lb.getHasAtomic()) {
1248 output.println("transrecord_t * trans;");
1251 if (GENERATEPRECISEGC) {
1252 if (md!=null&&state.DSM)
1253 output.print(" struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1254 else if (md!=null&&!state.DSM)
1255 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1257 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
1259 output.print(objecttemp.numPointers()+",");
1260 output.print(paramsprefix);
1261 for(int j=0;j<objecttemp.numPointers();j++)
1262 output.print(", NULL");
1263 output.println("};");
1266 for(int i=0;i<objecttemp.numPrimitives();i++) {
1267 TempDescriptor td=objecttemp.getPrimitive(i);
1268 TypeDescriptor type=td.getType();
1270 output.println(" void * "+td.getSafeSymbol()+";");
1271 else if (type.isClass()||type.isArray())
1272 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1274 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1277 /* Assign labels to FlatNode's if necessary.*/
1279 Hashtable<FlatNode, Integer> nodetolabel=assignLabels(fm);
1281 /* Check to see if we need to do a GC if this is a
1282 * multi-threaded program...*/
1284 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1285 if (state.DSM&&lb.isAtomic())
1286 output.println("checkcollect2(&"+localsprefix+",trans);");
1288 output.println("checkcollect(&"+localsprefix+");");
1291 /* Do the actual code generation */
1292 FlatNode current_node=null;
1293 HashSet tovisit=new HashSet();
1294 HashSet visited=new HashSet();
1295 tovisit.add(fm.getNext(0));
1296 while(current_node!=null||!tovisit.isEmpty()) {
1297 if (current_node==null) {
1298 current_node=(FlatNode)tovisit.iterator().next();
1299 tovisit.remove(current_node);
1301 visited.add(current_node);
1302 if (nodetolabel.containsKey(current_node))
1303 output.println("L"+nodetolabel.get(current_node)+":");
1304 if (state.INSTRUCTIONFAILURE) {
1305 if (state.THREAD||state.DSM) {
1306 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
1309 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
1311 if (current_node.numNext()==0) {
1313 generateFlatNode(fm, lb, current_node, output);
1314 if (current_node.kind()!=FKind.FlatReturnNode) {
1315 output.println(" return;");
1318 } else if(current_node.numNext()==1) {
1320 generateFlatNode(fm, lb, current_node, output);
1321 FlatNode nextnode=current_node.getNext(0);
1322 if (visited.contains(nextnode)) {
1323 output.println("goto L"+nodetolabel.get(nextnode)+";");
1326 current_node=nextnode;
1327 } else if (current_node.numNext()==2) {
1330 generateFlatCondBranch(fm, lb, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
1331 if (!visited.contains(current_node.getNext(1)))
1332 tovisit.add(current_node.getNext(1));
1333 if (visited.contains(current_node.getNext(0))) {
1334 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
1337 current_node=current_node.getNext(0);
1338 } else throw new Error();
1340 output.println("}\n\n");
1343 /** This method assigns labels to FlatNodes */
1345 //private Hashtable<FlatNode, Integer> assignLabels(FlatMethod fm) {
1346 protected Hashtable<FlatNode, Integer> assignLabels(FlatMethod fm) {
1347 HashSet tovisit=new HashSet();
1348 HashSet visited=new HashSet();
1350 Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
1351 tovisit.add(fm.getNext(0));
1353 /*Assign labels first. A node needs a label if the previous
1354 * node has two exits or this node is a join point. */
1356 while(!tovisit.isEmpty()) {
1357 FlatNode fn=(FlatNode)tovisit.iterator().next();
1360 for(int i=0;i<fn.numNext();i++) {
1361 FlatNode nn=fn.getNext(i);
1363 //1) Edge >1 of node
1364 nodetolabel.put(nn,new Integer(labelindex++));
1366 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1370 nodetolabel.put(nn,new Integer(labelindex++));
1378 /** Generate text string that corresponds to the TempDescriptor td. */
1379 //private String generateTemp(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1380 protected String generateTemp(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1381 MethodDescriptor md=fm.getMethod();
1382 TaskDescriptor task=fm.getTask();
1383 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1385 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1386 return td.getSafeSymbol();
1389 if (objecttemps.isLocalPtr(td)) {
1390 return localsprefix+"."+td.getSafeSymbol();
1393 if (objecttemps.isParamPtr(td)) {
1394 return paramsprefix+"->"+td.getSafeSymbol();
1399 //private void generateFlatNode(FlatMethod fm, LocalityBinding lb, FlatNode fn, PrintWriter output) {
1400 protected void generateFlatNode(FlatMethod fm, LocalityBinding lb, FlatNode fn, PrintWriter output) {
1402 case FKind.FlatAtomicEnterNode:
1403 generateFlatAtomicEnterNode(fm, lb, (FlatAtomicEnterNode) fn, output);
1405 case FKind.FlatAtomicExitNode:
1406 generateFlatAtomicExitNode(fm, lb, (FlatAtomicExitNode) fn, output);
1408 case FKind.FlatGlobalConvNode:
1409 generateFlatGlobalConvNode(fm, lb, (FlatGlobalConvNode) fn, output);
1411 case FKind.FlatTagDeclaration:
1412 generateFlatTagDeclaration(fm, lb, (FlatTagDeclaration) fn,output);
1414 case FKind.FlatCall:
1415 generateFlatCall(fm, lb, (FlatCall) fn,output);
1417 case FKind.FlatFieldNode:
1418 generateFlatFieldNode(fm, lb, (FlatFieldNode) fn,output);
1420 case FKind.FlatElementNode:
1421 generateFlatElementNode(fm, lb, (FlatElementNode) fn,output);
1423 case FKind.FlatSetElementNode:
1424 generateFlatSetElementNode(fm, lb, (FlatSetElementNode) fn,output);
1426 case FKind.FlatSetFieldNode:
1427 generateFlatSetFieldNode(fm, lb, (FlatSetFieldNode) fn,output);
1430 generateFlatNew(fm, lb, (FlatNew) fn,output);
1432 case FKind.FlatOpNode:
1433 generateFlatOpNode(fm, lb, (FlatOpNode) fn,output);
1435 case FKind.FlatCastNode:
1436 generateFlatCastNode(fm, lb, (FlatCastNode) fn,output);
1438 case FKind.FlatLiteralNode:
1439 generateFlatLiteralNode(fm, lb, (FlatLiteralNode) fn,output);
1441 case FKind.FlatReturnNode:
1442 generateFlatReturnNode(fm, lb, (FlatReturnNode) fn,output);
1445 output.println("/* nop */");
1447 case FKind.FlatBackEdge:
1448 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1449 if(state.DSM&&locality.getAtomic(lb).get(fn).intValue()>0) {
1450 output.println("checkcollect2(&"+localsprefix+",trans);");
1452 output.println("checkcollect(&"+localsprefix+");");
1454 output.println("/* nop */");
1456 case FKind.FlatCheckNode:
1457 generateFlatCheckNode(fm, lb, (FlatCheckNode) fn, output);
1459 case FKind.FlatFlagActionNode:
1460 generateFlatFlagActionNode(fm, lb, (FlatFlagActionNode) fn, output);
1462 case FKind.FlatPrefetchNode:
1463 generateFlatPrefetchNode(fm,lb, (FlatPrefetchNode) fn, output);
1469 public void generateFlatPrefetchNode(FlatMethod fm, LocalityBinding lb, FlatPrefetchNode fpn, PrintWriter output) {
1470 if (state.PREFETCH) {
1471 Vector oids = new Vector();
1472 Vector fieldoffset = new Vector();
1473 Vector endoffset = new Vector();
1474 int tuplecount = 0; //Keeps track of number of prefetch tuples that need to be generated
1475 for(Iterator it = fpn.hspp.iterator();it.hasNext();) {
1476 PrefetchPair pp = (PrefetchPair) it.next();
1477 Integer statusbase = locality.getNodePreTempInfo(lb,fpn).get(pp.base);
1478 /* Find prefetches that can generate oid */
1479 if(statusbase == LocalityAnalysis.GLOBAL) {
1480 generateTransCode(fm, lb, pp, oids, fieldoffset, endoffset, tuplecount, locality.getAtomic(lb).get(fpn).intValue()>0, false);
1482 } else if (statusbase == LocalityAnalysis.LOCAL) {
1483 generateTransCode(fm,lb,pp,oids,fieldoffset,endoffset,tuplecount,false,true);
1490 output.println("{");
1491 output.println("/* prefetch */");
1492 output.println("void * prefptr;");
1493 output.println("int tmpindex;");
1494 /*Create C code for oid array */
1495 output.print(" unsigned int oidarray_[] = {");
1496 boolean needcomma=false;
1497 for (Iterator it = oids.iterator();it.hasNext();) {
1500 output.print(it.next());
1503 output.println("};");
1505 /*Create C code for endoffset values */
1506 output.print(" unsigned short endoffsetarry_[] = {");
1508 for (Iterator it = endoffset.iterator();it.hasNext();) {
1511 output.print(it.next());
1514 output.println("};");
1516 /*Create C code for Field Offset Values */
1517 output.print(" short fieldarry_[] = {");
1519 for (Iterator it = fieldoffset.iterator();it.hasNext();) {
1522 output.print(it.next());
1525 output.println("};");
1526 /* make the prefetch call to Runtime */
1527 output.println(" prefetch("+tuplecount+", oidarray_, endoffsetarry_, fieldarry_);");
1528 output.println("}");
1532 public void generateTransCode(FlatMethod fm, LocalityBinding lb,PrefetchPair pp, Vector oids, Vector fieldoffset, Vector endoffset, int tuplecount, boolean inside, boolean localbase) {
1533 short offsetcount = 0;
1537 } else if (localbase) {
1538 for(;breakindex<pp.desc.size();breakindex++) {
1539 Descriptor desc=pp.getDescAt(breakindex);
1540 if (desc instanceof FieldDescriptor) {
1541 FieldDescriptor fd=(FieldDescriptor)desc;
1542 if (fd.isGlobal()) {
1550 if (breakindex>pp.desc.size()) //all local
1553 TypeDescriptor lasttype=pp.base.getType();
1554 String basestr=generateTemp(fm, pp.base, lb);
1556 boolean maybenull=fm.getMethod().isStatic()||
1557 !pp.base.equals(fm.getParameter(0));
1559 for(int i=0;i<breakindex;i++) {
1560 String indexcheck="";
1562 Descriptor desc=pp.getDescAt(i);
1563 if (desc instanceof FieldDescriptor) {
1564 FieldDescriptor fd=(FieldDescriptor)desc;
1566 if (!teststr.equals(""))
1568 teststr+="((prefptr="+basestr+")!=NULL)";
1569 basestr="((struct "+lasttype.getSafeSymbol()+" *)prefptr)->"+fd.getSafeSymbol();
1571 basestr=basestr+"->"+fd.getSafeSymbol();
1574 lasttype=fd.getType();
1576 IndexDescriptor id=(IndexDescriptor)desc;
1577 indexcheck="((tmpindex=";
1578 for(int j=0;j<id.tddesc.size();j++) {
1579 indexcheck+=generateTemp(fm, id.getTempDescAt(j), lb)+"+";
1581 indexcheck+=id.offset+")>=0)&&(tmpindex<((struct ArrayObject *)prefptr)->___length___)";
1583 if (!teststr.equals(""))
1585 teststr+="((prefptr="+basestr+")!= NULL) &&"+indexcheck;
1586 basestr="((void **)(((char *) &(((struct ArrayObject *)prefptr)->___length___))+sizeof(int)))[tmpindex]";
1588 lasttype=lasttype.dereference();
1593 if (teststr.equals("")) {
1594 oid="((unsigned int)"+basestr+")";
1596 oid="((unsigned int)(("+teststr+")?"+basestr+":NULL))";
1600 for(int i = breakindex; i < pp.desc.size(); i++) {
1601 String newfieldoffset;
1602 Object desc = pp.getDescAt(i);
1603 if(desc instanceof FieldDescriptor) {
1604 FieldDescriptor fd=(FieldDescriptor)desc;
1605 newfieldoffset = new String("(unsigned int)(&(((struct "+ lasttype.getSafeSymbol()+" *)0)->"+ fd.getSafeSymbol()+ "))");
1606 lasttype=fd.getType();
1608 newfieldoffset = "";
1609 IndexDescriptor id=(IndexDescriptor)desc;
1610 for(int j = 0; j < id.tddesc.size(); j++) {
1611 newfieldoffset += generateTemp(fm, id.getTempDescAt(j), lb) + "+";
1613 newfieldoffset += id.offset.toString();
1614 lasttype=lasttype.dereference();
1616 fieldoffset.add(newfieldoffset);
1619 int base=(tuplecount>0)?((Short)endoffset.get(tuplecount-1)).intValue():0;
1620 base+=pp.desc.size()-breakindex;
1621 endoffset.add(new Short((short)base));
1626 public void generateFlatGlobalConvNode(FlatMethod fm, LocalityBinding lb, FlatGlobalConvNode fgcn, PrintWriter output) {
1627 if (lb!=fgcn.getLocality())
1629 /* Have to generate flat globalconv */
1630 if (fgcn.getMakePtr()) {
1631 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)transRead(trans, (unsigned int) "+generateTemp(fm, fgcn.getSrc(),lb)+");");
1633 /* Need to convert to OID */
1634 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)COMPOID("+generateTemp(fm, fgcn.getSrc(),lb)+");");
1638 public void generateFlatAtomicEnterNode(FlatMethod fm, LocalityBinding lb, FlatAtomicEnterNode faen, PrintWriter output) {
1639 /* Check to see if we need to generate code for this atomic */
1640 if (locality.getAtomic(lb).get(faen.getPrev(0)).intValue()>0)
1642 /* Backup the temps. */
1643 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1644 TempDescriptor tmp=tmpit.next();
1645 output.println(generateTemp(fm, backuptable.get(tmp),lb)+"="+generateTemp(fm,tmp,lb)+";");
1647 output.println("goto transstart"+faen.getIdentifier()+";");
1649 /******* Print code to retry aborted transaction *******/
1650 output.println("transretry"+faen.getIdentifier()+":");
1653 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1654 TempDescriptor tmp=tmpit.next();
1655 output.println(generateTemp(fm, tmp,lb)+"="+generateTemp(fm,backuptable.get(tmp),lb)+";");
1658 /********* Need to revert local object store ********/
1659 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1661 output.println("while ("+revertptr+") {");
1662 output.println("struct ___Object___ * tmpptr;");
1663 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1664 output.println("REVERT_OBJ("+revertptr+");");
1665 output.println(revertptr+"=tmpptr;");
1666 output.println("}");
1668 /******* Tell the runtime to start the transaction *******/
1670 output.println("transstart"+faen.getIdentifier()+":");
1671 output.println("trans=transStart();");
1674 public void generateFlatAtomicExitNode(FlatMethod fm, LocalityBinding lb, FlatAtomicExitNode faen, PrintWriter output) {
1675 /* Check to see if we need to generate code for this atomic */
1676 if (locality.getAtomic(lb).get(faen).intValue()>0)
1678 //store the revert list before we lose the transaction object
1679 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1680 output.println(revertptr+"=trans->revertlist;");
1681 output.println("if (transCommit(trans)) {");
1682 /* Transaction aborts if it returns true */
1683 output.println("goto transretry"+faen.getAtomicEnter().getIdentifier()+";");
1684 output.println("} else {");
1685 /* Need to commit local object store */
1686 output.println("while ("+revertptr+") {");
1687 output.println("struct ___Object___ * tmpptr;");
1688 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1689 output.println("COMMIT_OBJ("+revertptr+");");
1690 output.println(revertptr+"=tmpptr;");
1691 output.println("}");
1692 output.println("}");
1695 private void generateFlatCheckNode(FlatMethod fm, LocalityBinding lb, FlatCheckNode fcn, PrintWriter output) {
1696 if (state.CONSCHECK) {
1697 String specname=fcn.getSpec();
1698 String varname="repairstate___";
1699 output.println("{");
1700 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1702 TempDescriptor[] temps=fcn.getTemps();
1703 String[] vars=fcn.getVars();
1704 for(int i=0;i<temps.length;i++) {
1705 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i],lb)+";");
1708 output.println("if (doanalysis"+specname+"("+varname+")) {");
1709 output.println("free"+specname+"_state("+varname+");");
1710 output.println("} else {");
1711 output.println("/* Bad invariant */");
1712 output.println("free"+specname+"_state("+varname+");");
1713 output.println("abort_task();");
1714 output.println("}");
1715 output.println("}");
1719 private void generateFlatCall(FlatMethod fm, LocalityBinding lb, FlatCall fc, PrintWriter output) {
1720 MethodDescriptor md=fc.getMethod();
1721 ParamsObject objectparams=(ParamsObject)paramstable.get(state.DSM?locality.getBinding(lb, fc):md);
1722 ClassDescriptor cn=md.getClassDesc();
1723 output.println("{");
1724 if (GENERATEPRECISEGC) {
1726 LocalityBinding fclb=locality.getBinding(lb, fc);
1727 output.print(" struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1729 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1731 output.print(objectparams.numPointers());
1732 output.print(", & "+localsprefix);
1733 if (md.getThis()!=null) {
1735 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis(),lb));
1737 if (fc.getThis()!=null&&md.getThis()==null) {
1738 System.out.println("WARNING!!!!!!!!!!!!");
1739 System.out.println("Source code calls static method"+md+"on an object in "+fm.getMethod()+"!");
1743 for(int i=0;i<fc.numArgs();i++) {
1744 Descriptor var=md.getParameter(i);
1745 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1746 if (objectparams.isParamPtr(paramtemp)) {
1747 TempDescriptor targ=fc.getArg(i);
1749 TypeDescriptor td=md.getParamType(i);
1751 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1753 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1756 output.println("};");
1761 if (fc.getReturnTemp()!=null)
1762 output.print(generateTemp(fm,fc.getReturnTemp(),lb)+"=");
1764 /* Do we need to do virtual dispatch? */
1765 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
1768 LocalityBinding fclb=locality.getBinding(lb, fc);
1769 output.print(cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1771 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1776 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1777 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1779 output.print(md.getReturnType().getSafeSymbol()+" ");
1780 output.print("(*)(");
1782 boolean printcomma=false;
1783 if (GENERATEPRECISEGC) {
1785 LocalityBinding fclb=locality.getBinding(lb, fc);
1786 output.print("struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1788 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1792 for(int i=0;i<objectparams.numPrimitives();i++) {
1793 TempDescriptor temp=objectparams.getPrimitive(i);
1797 if (temp.getType().isClass()||temp.getType().isArray())
1798 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
1800 output.print(temp.getType().getSafeSymbol());
1803 if (state.DSM&&locality.getBinding(lb,fc).isAtomic()&&!fc.getMethod().getModifiers().isNative()) {
1804 LocalityBinding fclb=locality.getBinding(lb, fc);
1807 output.print("transrecord_t *");
1812 LocalityBinding fclb=locality.getBinding(lb, fc);
1813 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getLocalityNumber(fclb)+"])");
1815 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
1819 boolean needcomma=false;
1820 if (GENERATEPRECISEGC) {
1821 output.print("&__parameterlist__");
1825 if (state.DSM&&locality.getBinding(lb,fc).isAtomic()&&!fc.getMethod().getModifiers().isNative()) {
1828 output.print("trans");
1832 if (!GENERATEPRECISEGC) {
1833 if (fc.getThis()!=null) {
1834 TypeDescriptor ptd=md.getThis().getType();
1837 if (ptd.isClass()&&!ptd.isArray())
1838 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1839 output.print(generateTemp(fm,fc.getThis(),lb));
1844 for(int i=0;i<fc.numArgs();i++) {
1845 Descriptor var=md.getParameter(i);
1846 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1847 if (objectparams.isParamPrim(paramtemp)) {
1848 TempDescriptor targ=fc.getArg(i);
1852 TypeDescriptor ptd=md.getParamType(i);
1853 if (ptd.isClass()&&!ptd.isArray())
1854 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1855 output.print(generateTemp(fm, targ,lb));
1859 output.println(");");
1860 output.println(" }");
1863 private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
1864 Set subclasses=typeutil.getSubClasses(thiscd);
1865 if (subclasses==null)
1867 for(Iterator classit=subclasses.iterator();classit.hasNext();) {
1868 ClassDescriptor cd=(ClassDescriptor)classit.next();
1869 Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
1870 for(Iterator matchit=possiblematches.iterator();matchit.hasNext();) {
1871 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
1872 if (md.matches(matchmd))
1879 private void generateFlatFieldNode(FlatMethod fm, LocalityBinding lb, FlatFieldNode ffn, PrintWriter output) {
1881 Integer status=locality.getNodePreTempInfo(lb,ffn).get(ffn.getSrc());
1882 if (status==LocalityAnalysis.GLOBAL) {
1883 String field=ffn.getField().getSafeSymbol();
1884 String src=generateTemp(fm, ffn.getSrc(),lb);
1885 String dst=generateTemp(fm, ffn.getDst(),lb);
1887 if (ffn.getField().getType().isPtr()) {
1889 //TODO: Uncomment this when we have runtime support
1890 //if (ffn.getSrc()==ffn.getDst()) {
1891 //output.println("{");
1892 //output.println("void * temp="+src+";");
1893 //output.println("if (temp&0x1) {");
1894 //output.println("temp=(void *) transRead(trans, (unsigned int) temp);");
1895 //output.println(src+"->"+field+"="+temp+";");
1896 //output.println("}");
1897 //output.println(dst+"=temp;");
1898 //output.println("}");
1900 output.println(dst+"="+ src +"->"+field+ ";");
1901 //output.println("if ("+dst+"&0x1) {");
1902 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1903 //output.println(src+"->"+field+"="+src+"->"+field+";");
1904 //output.println("}");
1907 output.println(dst+"="+ src+"->"+field+";");
1909 } else if (status==LocalityAnalysis.LOCAL) {
1910 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1911 } else if (status==LocalityAnalysis.EITHER) {
1912 //Code is reading from a null pointer
1913 output.println("if ("+generateTemp(fm, ffn.getSrc(),lb)+") {");
1914 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
1915 //This should throw a suitable null pointer error
1916 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1918 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
1920 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1924 private void generateFlatSetFieldNode(FlatMethod fm, LocalityBinding lb, FlatSetFieldNode fsfn, PrintWriter output) {
1925 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
1926 throw new Error("Can't set array length");
1927 if (state.DSM && locality.getAtomic(lb).get(fsfn).intValue()>0) {
1928 Integer statussrc=locality.getNodePreTempInfo(lb,fsfn).get(fsfn.getSrc());
1929 Integer statusdst=locality.getNodeTempInfo(lb).get(fsfn).get(fsfn.getDst());
1930 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
1932 String src=generateTemp(fm,fsfn.getSrc(),lb);
1933 String dst=generateTemp(fm,fsfn.getDst(),lb);
1935 output.println("{");
1936 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
1938 if (statusdst.equals(LocalityAnalysis.GLOBAL)) {
1941 output.println("*((unsigned int *)&("+dst+"->___localcopy___))|=DIRTY;");
1943 output.println("*((unsigned int *)&("+glbdst+"->"+ fsfn.getField().getSafeSymbol()+"))=srcoid;");
1945 output.println(glbdst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1946 } else if (statusdst.equals(LocalityAnalysis.LOCAL)) {
1947 /** Check if we need to copy */
1948 output.println("if(!"+dst+"->"+localcopystr+") {");
1949 /* Link object into list */
1950 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1951 output.println(revertptr+"=trans->revertlist;");
1952 if (GENERATEPRECISEGC)
1953 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
1955 output.println("COPY_OBJ("+dst+");");
1956 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
1957 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
1958 output.println("}");
1960 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
1962 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1963 } else if (statusdst.equals(LocalityAnalysis.EITHER)) {
1964 //writing to a null...bad
1965 output.println("if ("+dst+") {");
1966 output.println("printf(\"BIG ERROR 2\\n\");exit(-1);}");
1968 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
1970 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1973 output.println("}");
1976 output.println(generateTemp(fm, fsfn.getDst(),lb)+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc(),lb)+";");
1980 private void generateFlatElementNode(FlatMethod fm, LocalityBinding lb, FlatElementNode fen, PrintWriter output) {
1981 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
1984 if (elementtype.isArray()||elementtype.isClass())
1987 type=elementtype.getSafeSymbol()+" ";
1989 if (fen.needsBoundsCheck()) {
1990 output.println("if ("+generateTemp(fm, fen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fen.getIndex(),lb)+" >= "+generateTemp(fm,fen.getSrc(),lb) + "->___length___)");
1991 output.println("failedboundschk();");
1994 Integer status=locality.getNodePreTempInfo(lb,fen).get(fen.getSrc());
1995 if (status==LocalityAnalysis.GLOBAL) {
1996 String dst=generateTemp(fm, fen.getDst(),lb);
1998 if (elementtype.isPtr()) {
1999 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2000 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
2002 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2004 } else if (status==LocalityAnalysis.LOCAL) {
2005 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2006 } else if (status==LocalityAnalysis.EITHER) {
2007 //Code is reading from a null pointer
2008 output.println("if ("+generateTemp(fm, fen.getSrc(),lb)+") {");
2009 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
2010 //This should throw a suitable null pointer error
2011 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2013 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
2015 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2019 private void generateFlatSetElementNode(FlatMethod fm, LocalityBinding lb, FlatSetElementNode fsen, PrintWriter output) {
2020 //TODO: need dynamic check to make sure this assignment is actually legal
2021 //Because Object[] could actually be something more specific...ie. Integer[]
2023 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2026 if (elementtype.isArray()||elementtype.isClass())
2029 type=elementtype.getSafeSymbol()+" ";
2032 if (fsen.needsBoundsCheck()) {
2033 output.println("if ("+generateTemp(fm, fsen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fsen.getIndex(),lb)+" >= "+generateTemp(fm,fsen.getDst(),lb) + "->___length___)");
2034 output.println("failedboundschk();");
2037 if (state.DSM && locality.getAtomic(lb).get(fsen).intValue()>0) {
2038 Integer statussrc=locality.getNodePreTempInfo(lb,fsen).get(fsen.getSrc());
2039 Integer statusdst=locality.getNodePreTempInfo(lb,fsen).get(fsen.getDst());
2040 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
2041 boolean dstglobal=statusdst==LocalityAnalysis.GLOBAL;
2042 boolean dstlocal=statusdst==LocalityAnalysis.LOCAL;
2045 output.println("*((unsigned int *)&("+generateTemp(fm,fsen.getDst(),lb)+"->___localcopy___))|=DIRTY;");
2046 } else if (dstlocal) {
2047 /** Check if we need to copy */
2048 String dst=generateTemp(fm, fsen.getDst(),lb);
2049 output.println("if(!"+dst+"->"+localcopystr+") {");
2050 /* Link object into list */
2051 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2052 output.println(revertptr+"=trans->revertlist;");
2053 if (GENERATEPRECISEGC)
2054 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
2056 output.println("COPY_OBJ("+dst+");");
2057 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
2058 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
2059 output.println("}");
2060 } else throw new Error("Unknown array type");
2062 output.println("{");
2063 String src=generateTemp(fm, fsen.getSrc(), lb);
2064 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
2065 output.println("((int*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]=srcoid;");
2066 output.println("}");
2068 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2071 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2074 private void generateFlatNew(FlatMethod fm, LocalityBinding lb, FlatNew fn, PrintWriter output) {
2075 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2076 //Stash pointer in case of GC
2077 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2078 output.println(revertptr+"=trans->revertlist;");
2080 if (fn.getType().isArray()) {
2081 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2082 if (fn.isGlobal()) {
2083 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarrayglobal(trans, "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2084 } else if (GENERATEPRECISEGC) {
2085 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray(&"+localsprefix+", "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2087 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2090 if (fn.isGlobal()) {
2091 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newglobal(trans, "+fn.getType().getClassDesc().getId()+");");
2092 } else if (GENERATEPRECISEGC) {
2093 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new(&"+localsprefix+", "+fn.getType().getClassDesc().getId()+");");
2095 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2098 if(state.MULTICORE) {
2099 output.println(" " + generateTemp(fm,fn.getDst(),lb)+"->isolate = 1;");
2100 output.println(" " + generateTemp(fm,fn.getDst(),lb)+"->version = 0;");
2102 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2103 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2104 output.println("trans->revertlist="+revertptr+";");
2108 private void generateFlatTagDeclaration(FlatMethod fm, LocalityBinding lb, FlatTagDeclaration fn, PrintWriter output) {
2109 if (GENERATEPRECISEGC) {
2110 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag(&"+localsprefix+", "+state.getTagId(fn.getType())+");");
2112 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag("+state.getTagId(fn.getType())+");");
2116 private void generateFlatOpNode(FlatMethod fm, LocalityBinding lb, FlatOpNode fon, PrintWriter output) {
2117 if (fon.getRight()!=null) {
2118 if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2119 if (fon.getLeft().getType().isLong())
2120 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2122 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned int)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2125 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+fon.getOp().toString()+generateTemp(fm,fon.getRight(),lb)+";");
2126 } else if (fon.getOp().getOp()==Operation.ASSIGN)
2127 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2128 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2129 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2130 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2131 output.println(generateTemp(fm, fon.getDest(),lb)+" = -"+generateTemp(fm, fon.getLeft(),lb)+";");
2132 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2133 output.println(generateTemp(fm, fon.getDest(),lb)+" = !"+generateTemp(fm, fon.getLeft(),lb)+";");
2134 else if (fon.getOp().getOp()==Operation.COMP)
2135 output.println(generateTemp(fm, fon.getDest(),lb)+" = ~"+generateTemp(fm, fon.getLeft(),lb)+";");
2136 else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2137 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+"->fses==NULL;");
2139 output.println(generateTemp(fm, fon.getDest(),lb)+fon.getOp().toString()+generateTemp(fm, fon.getLeft(),lb)+";");
2142 private void generateFlatCastNode(FlatMethod fm, LocalityBinding lb, FlatCastNode fcn, PrintWriter output) {
2143 /* TODO: Do type check here */
2144 if (fcn.getType().isArray()) {
2146 } else if (fcn.getType().isClass())
2147 output.println(generateTemp(fm,fcn.getDst(),lb)+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc(),lb)+";");
2149 output.println(generateTemp(fm,fcn.getDst(),lb)+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc(),lb)+";");
2152 private void generateFlatLiteralNode(FlatMethod fm, LocalityBinding lb, FlatLiteralNode fln, PrintWriter output) {
2153 if (fln.getValue()==null)
2154 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2155 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2156 if (GENERATEPRECISEGC) {
2157 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2158 //Stash pointer in case of GC
2159 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2160 output.println(revertptr+"=trans->revertlist;");
2162 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(&"+localsprefix+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2163 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2164 //Stash pointer in case of GC
2165 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2166 output.println("trans->revertlist="+revertptr+";");
2169 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2171 } else if (fln.getType().isBoolean()) {
2172 if (((Boolean)fln.getValue()).booleanValue())
2173 output.println(generateTemp(fm, fln.getDst(),lb)+"=1;");
2175 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2176 } else if (fln.getType().isChar()) {
2177 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2178 output.println(generateTemp(fm, fln.getDst(),lb)+"='"+st+"';");
2179 } else if (fln.getType().isLong()) {
2180 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+"LL;");
2182 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+";");
2185 protected void generateFlatReturnNode(FlatMethod fm, LocalityBinding lb, FlatReturnNode frn, PrintWriter output) {
2186 if (frn.getReturnTemp()!=null) {
2187 if (frn.getReturnTemp().getType().isPtr())
2188 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2190 output.println("return "+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2192 output.println("return;");
2196 //private void generateFlatCondBranch(FlatMethod fm, LocalityBinding lb, FlatCondBranch fcb, String label, PrintWriter output) {
2197 protected void generateFlatCondBranch(FlatMethod fm, LocalityBinding lb, FlatCondBranch fcb, String label, PrintWriter output) {
2198 output.println("if (!"+generateTemp(fm, fcb.getTest(),lb)+") goto "+label+";");
2201 /** This method generates header information for the method or
2202 * task referenced by the Descriptor des. */
2204 private void generateHeader(FlatMethod fm, LocalityBinding lb, Descriptor des, PrintWriter output) {
2206 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:des);
2207 MethodDescriptor md=null;
2208 TaskDescriptor task=null;
2209 if (des instanceof MethodDescriptor)
2210 md=(MethodDescriptor) des;
2212 task=(TaskDescriptor) des;
2214 ClassDescriptor cn=md!=null?md.getClassDesc():null;
2216 if (md!=null&&md.getReturnType()!=null) {
2217 if (md.getReturnType().isClass()||md.getReturnType().isArray())
2218 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2220 output.print(md.getReturnType().getSafeSymbol()+" ");
2222 //catch the constructor case
2223 output.print("void ");
2226 output.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2228 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2230 output.print(task.getSafeSymbol()+"(");
2232 boolean printcomma=false;
2233 if (GENERATEPRECISEGC) {
2236 output.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2238 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2240 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2244 if (state.DSM&&lb.isAtomic()) {
2247 output.print("transrecord_t * trans");
2253 for(int i=0;i<objectparams.numPrimitives();i++) {
2254 TempDescriptor temp=objectparams.getPrimitive(i);
2258 if (temp.getType().isClass()||temp.getType().isArray())
2259 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2261 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2263 output.println(") {");
2264 } else if (!GENERATEPRECISEGC) {
2265 /* Imprecise Task */
2266 output.println("void * parameterarray[]) {");
2267 /* Unpack variables */
2268 for(int i=0;i<objectparams.numPrimitives();i++) {
2269 TempDescriptor temp=objectparams.getPrimitive(i);
2270 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2272 for(int i=0;i<fm.numTags();i++) {
2273 TempDescriptor temp=fm.getTag(i);
2274 int offset=i+objectparams.numPrimitives();
2275 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2278 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2279 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2280 } else output.println(") {");
2283 public void generateFlatFlagActionNode(FlatMethod fm, LocalityBinding lb, FlatFlagActionNode ffan, PrintWriter output) {
2284 output.println("/* FlatFlagActionNode */");
2287 /* Process tag changes */
2288 Relation tagsettable=new Relation();
2289 Relation tagcleartable=new Relation();
2291 Iterator tagsit=ffan.getTempTagPairs();
2292 while (tagsit.hasNext()) {
2293 TempTagPair ttp=(TempTagPair) tagsit.next();
2294 TempDescriptor objtmp=ttp.getTemp();
2295 TagDescriptor tag=ttp.getTag();
2296 TempDescriptor tagtmp=ttp.getTagTemp();
2297 boolean tagstatus=ffan.getTagChange(ttp);
2299 tagsettable.put(objtmp, tagtmp);
2301 tagcleartable.put(objtmp, tagtmp);
2306 Hashtable flagandtable=new Hashtable();
2307 Hashtable flagortable=new Hashtable();
2309 /* Process flag changes */
2310 Iterator flagsit=ffan.getTempFlagPairs();
2311 while(flagsit.hasNext()) {
2312 TempFlagPair tfp=(TempFlagPair)flagsit.next();
2313 TempDescriptor temp=tfp.getTemp();
2314 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2315 FlagDescriptor flag=tfp.getFlag();
2317 //Newly allocate objects that don't set any flags case
2318 if (flagortable.containsKey(temp)) {
2322 flagortable.put(temp,new Integer(mask));
2324 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2325 boolean flagstatus=ffan.getFlagChange(tfp);
2328 if (flagortable.containsKey(temp)) {
2329 mask=((Integer)flagortable.get(temp)).intValue();
2332 flagortable.put(temp,new Integer(mask));
2334 int mask=0xFFFFFFFF;
2335 if (flagandtable.containsKey(temp)) {
2336 mask=((Integer)flagandtable.get(temp)).intValue();
2338 mask&=(0xFFFFFFFF^flagid);
2339 flagandtable.put(temp,new Integer(mask));
2345 HashSet flagtagset=new HashSet();
2346 flagtagset.addAll(flagortable.keySet());
2347 flagtagset.addAll(flagandtable.keySet());
2348 flagtagset.addAll(tagsettable.keySet());
2349 flagtagset.addAll(tagcleartable.keySet());
2351 Iterator ftit=flagtagset.iterator();
2352 while(ftit.hasNext()) {
2353 TempDescriptor temp=(TempDescriptor)ftit.next();
2356 Set tagtmps=tagcleartable.get(temp);
2357 if (tagtmps!=null) {
2358 Iterator tagit=tagtmps.iterator();
2359 while(tagit.hasNext()) {
2360 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2361 if (GENERATEPRECISEGC)
2362 output.println("tagclear(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2364 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2368 tagtmps=tagsettable.get(temp);
2369 if (tagtmps!=null) {
2370 Iterator tagit=tagtmps.iterator();
2371 while(tagit.hasNext()) {
2372 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2373 if (GENERATEPRECISEGC)
2374 output.println("tagset(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2376 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp, lb)+", "+generateTemp(fm,tagtmp, lb)+");");
2381 int andmask=0xFFFFFFF;
2383 if (flagortable.containsKey(temp))
2384 ormask=((Integer)flagortable.get(temp)).intValue();
2385 if (flagandtable.containsKey(temp))
2386 andmask=((Integer)flagandtable.get(temp)).intValue();
2387 /*if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2388 output.println("flagorandinit("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2390 output.println("flagorand("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2392 generateFlagOrAnd(ffan, fm, lb, temp, output, ormask, andmask);
2393 generateObjectDistribute(ffan, fm, lb, temp, output);
2397 protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp,
2398 PrintWriter output, int ormask, int andmask) {
2399 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2400 output.println("flagorandinit("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2402 output.println("flagorand("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2406 protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp, PrintWriter output) {
2407 output.println("enqueueObject("+generateTemp(fm, temp, lb)+");");
2410 void generateOptionalHeader(PrintWriter headers) {
2413 headers.println("#include \"task.h\"\n\n");
2414 headers.println("#ifndef _OPTIONAL_STRUCT_");
2415 headers.println("#define _OPTIONAL_STRUCT_");
2417 //STRUCT PREDICATEMEMBER
2418 headers.println("struct predicatemember{");
2419 headers.println("int type;");
2420 headers.println("int numdnfterms;");
2421 headers.println("int * flags;");
2422 headers.println("int numtags;");
2423 headers.println("int * tags;\n};\n\n");
2425 //STRUCT OPTIONALTASKDESCRIPTOR
2426 headers.println("struct optionaltaskdescriptor{");
2427 headers.println("struct taskdescriptor * task;");
2428 headers.println("int index;");
2429 headers.println("int numenterflags;");
2430 headers.println("int * enterflags;");
2431 headers.println("int numpredicatemembers;");
2432 headers.println("struct predicatemember ** predicatememberarray;");
2433 headers.println("};\n\n");
2435 //STRUCT TASKFAILURE
2436 headers.println("struct taskfailure {");
2437 headers.println("struct taskdescriptor * task;");
2438 headers.println("int index;");
2439 headers.println("int numoptionaltaskdescriptors;");
2440 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2442 //STRUCT FSANALYSISWRAPPER
2443 headers.println("struct fsanalysiswrapper{");
2444 headers.println("int flags;");
2445 headers.println("int numtags;");
2446 headers.println("int * tags;");
2447 headers.println("int numtaskfailures;");
2448 headers.println("struct taskfailure ** taskfailurearray;");
2449 headers.println("int numoptionaltaskdescriptors;");
2450 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2452 //STRUCT CLASSANALYSISWRAPPER
2453 headers.println("struct classanalysiswrapper{");
2454 headers.println("int type;");
2455 headers.println("int numotd;");
2456 headers.println("struct optionaltaskdescriptor ** otdarray;");
2457 headers.println("int numfsanalysiswrappers;");
2458 headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
2460 headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
2462 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
2463 while(taskit.hasNext()) {
2464 TaskDescriptor td=(TaskDescriptor)taskit.next();
2465 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
2470 //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
2471 int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
2472 int predicateindex = 0;
2473 //iterate through the classes concerned by the predicate
2474 Set c_vard = predicate.vardescriptors;
2475 Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
2478 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext();){
2479 VarDescriptor vard = (VarDescriptor)vard_it.next();
2480 TypeDescriptor typed = vard.getType();
2482 //generate for flags
2483 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
2484 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2486 if (fen_hashset!=null){
2487 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext();){
2488 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
2490 DNFFlag dflag=fen.getDNF();
2491 numberterms+=dflag.size();
2493 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
2495 for(int j=0;j<dflag.size();j++) {
2497 output.println(",");
2498 Vector term=dflag.get(j);
2501 for(int k=0;k<term.size();k++) {
2502 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
2503 FlagDescriptor fd=dfa.getFlag();
2504 boolean negated=dfa.getNegated();
2505 int flagid=1<<((Integer)flags.get(fd)).intValue();
2510 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
2515 output.println("};\n");
2518 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
2519 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2522 for(int j=0;j<tagel.numTags();j++) {
2524 output.println(",");
2525 TempDescriptor tmp=tagel.getTemp(j);
2526 if (!slotnumber.containsKey(tmp)) {
2527 Integer slotint=new Integer(current_slot++);
2528 slotnumber.put(tmp,slotint);
2530 int slot=slotnumber.get(tmp).intValue();
2531 output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
2533 numtags = tagel.numTags();
2535 output.println("};");
2537 //store the result into a predicatemember struct
2538 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2539 output.println("/*type*/"+typed.getClassDesc().getId()+",");
2540 output.println("/* number of dnf terms */"+numberterms+",");
2541 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2542 output.println("/* number of tag */"+numtags+",");
2543 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2544 output.println("};\n");
2549 //generate an array that stores the entire predicate
2550 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2551 for( int j = 0; j<predicateindex; j++){
2552 if( j != predicateindex-1)output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2553 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2555 output.println("};\n");
2556 return predicateindex;
2560 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
2561 generateOptionalHeader(headers);
2563 output.println("#include \"optionalstruct.h\"\n\n");
2564 output.println("#include \"stdlib.h\"\n");
2566 HashSet processedcd = new HashSet();
2568 Enumeration e = safeexecution.keys();
2569 while (e.hasMoreElements()) {
2572 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
2573 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp);//will be used several times
2575 //Generate the struct of optionals
2576 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2577 numotd = c_otd.size();
2578 if(maxotd<numotd) maxotd = numotd;
2579 if( !c_otd.isEmpty() ){
2580 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2581 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2583 //generate the int arrays for the predicate
2584 Predicate predicate = otd.predicate;
2585 int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
2586 TreeSet<Integer> fsset=new TreeSet<Integer>();
2587 //iterate through possible FSes corresponding to
2588 //the state when entering
2590 for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext();){
2591 FlagState fs = (FlagState)fses.next();
2593 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2594 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2595 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2598 fsset.add(new Integer(flagid));
2599 //tag information not needed because tag
2600 //changes are not tolerated.
2603 output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2604 boolean needcomma=false;
2605 for(Iterator<Integer> it=fsset.iterator();it.hasNext();) {
2608 output.println(it.next());
2611 output.println("};\n");
2614 //generate optionaltaskdescriptor that actually
2615 //includes exit fses, predicate and the task
2617 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2618 output.println("&task_"+otd.td.getSafeSymbol()+",");
2619 output.println("/*index*/"+otd.getIndex()+",");
2620 output.println("/*number of enter flags*/"+fsset.size()+",");
2621 output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2622 output.println("/*number of members */"+predicateindex+",");
2623 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2624 output.println("};\n");
2628 // if there are no optionals, there is no need to build the rest of the struct
2630 output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
2631 c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2632 if( !c_otd.isEmpty() ){
2633 boolean needcomma=false;
2634 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2635 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2637 output.println(",");
2639 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2642 output.println("};\n");
2644 //get all the possible flagstates reachable by an object
2645 Hashtable hashtbtemp = safeexecution.get(cdtemp);
2647 TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
2648 fsts.addAll(hashtbtemp.keySet());
2649 for(Iterator fsit=fsts.iterator();fsit.hasNext();) {
2650 FlagState fs = (FlagState)fsit.next();
2653 //get the set of OptionalTaskDescriptors corresponding
2654 HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
2655 //iterate through the OptionalTaskDescriptors and
2656 //store the pointers to the optionals struct (see on
2657 //top) into an array
2659 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
2660 for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext();){
2661 OptionalTaskDescriptor mm = mos.next();
2663 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
2665 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2668 output.println("};\n");
2670 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
2673 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2674 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2675 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2679 //process tag information
2682 boolean first = true;
2683 Enumeration tag_enum = fs.getTags();
2684 output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2685 while(tag_enum.hasMoreElements()){
2687 TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
2691 output.println(", ");
2692 output.println("/*tagid*/"+state.getTagId(tagd));
2694 output.println("};");
2696 Set<TaskIndex> tiset=sa.getTaskIndex(fs);
2697 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2698 TaskIndex ti=itti.next();
2702 Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
2704 output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
2705 boolean needcomma=false;
2706 for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator();otdit.hasNext();) {
2707 OptionalTaskDescriptor otd=otdit.next();
2711 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2713 output.println("};");
2715 output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
2716 output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
2717 output.print(ti.getIndex()+", ");
2718 output.print(otdset.size()+", ");
2719 output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
2720 output.println("};");
2723 tiset=sa.getTaskIndex(fs);
2724 boolean needcomma=false;
2726 output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2727 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2728 TaskIndex ti=itti.next();
2729 if (ti.isRuntime()) {
2736 output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
2738 output.println("};\n");
2740 //Store the result in fsanalysiswrapper
2742 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
2743 output.println("/*flag*/"+flagid+",");
2744 output.println("/* number of tags*/"+tagcounter+",");
2745 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2746 output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
2747 output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2748 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
2749 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
2750 output.println("};\n");
2754 //Build the array of fsanalysiswrappers
2755 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
2756 boolean needcomma=false;
2757 for(int i = 0; i<fscounter; i++){
2758 if (needcomma) output.print(",");
2759 output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
2762 output.println("};");
2764 //Build the classanalysiswrapper referring to the previous array
2765 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
2766 output.println("/*type*/"+cdtemp.getId()+",");
2767 output.println("/*numotd*/"+numotd+",");
2768 output.println("otdarray"+cdtemp.getSafeSymbol()+",");
2769 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
2770 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
2771 processedcd.add(cdtemp);
2774 //build an array containing every classes for which code has been build
2775 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
2776 for(int i=0;i<state.numClasses();i++) {
2777 ClassDescriptor cn=cdarray[i];
2780 if (processedcd.contains(cn))
2781 output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
2783 output.print("NULL");
2785 output.println("};");
2787 output.println("#define MAXOTD "+maxotd);
2788 headers.println("#endif");
2791 public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
2792 Relation r=new Relation();
2793 for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator();otdit.hasNext();) {
2794 OptionalTaskDescriptor otd=otdit.next();
2795 TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
2799 LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
2800 for(Iterator it=r.keySet().iterator();it.hasNext();) {
2801 Set s=r.get(it.next());
2802 for(Iterator it2=s.iterator();it2.hasNext();) {
2803 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();
2811 protected void outputTransCode(PrintWriter output) {