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 protected int maxtaskparams=0;
41 private int maxcount=0;
42 ClassDescriptor[] cdarray;
43 TypeDescriptor[] arraytable;
44 LocalityAnalysis locality;
45 Hashtable<TempDescriptor, TempDescriptor> backuptable;
46 Hashtable<LocalityBinding, TempDescriptor> reverttable;
50 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa, PrefetchAnalysis pa) {
51 this(st, temptovar, typeutil, null, sa, pa);
54 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality, PrefetchAnalysis pa) {
55 this(st, temptovar, typeutil, locality, null, pa);
58 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, LocalityAnalysis locality, SafetyAnalysis sa, PrefetchAnalysis pa) {
62 this.temptovar=temptovar;
63 paramstable=new Hashtable();
64 tempstable=new Hashtable();
65 fieldorder=new Hashtable();
66 flagorder=new Hashtable();
67 this.typeutil=typeutil;
68 virtualcalls=new Virtual(state,locality);
70 this.locality=locality;
71 this.backuptable=new Hashtable<TempDescriptor, TempDescriptor>();
72 this.reverttable=new Hashtable<LocalityBinding, TempDescriptor>();
76 /** The buildCode method outputs C code for all the methods. The Flat
77 * versions of the methods must already be generated and stored in
78 * the State object. */
80 public void buildCode() {
81 /* Create output streams to write to */
82 PrintWriter outclassdefs=null;
83 PrintWriter outstructs=null;
84 PrintWriter outrepairstructs=null;
85 PrintWriter outmethodheader=null;
86 PrintWriter outmethod=null;
87 PrintWriter outvirtual=null;
88 PrintWriter outtask=null;
89 PrintWriter outtaskdefs=null;
90 PrintWriter outoptionalarrays=null;
91 PrintWriter optionalheaders=null;
94 outstructs=new PrintWriter(new FileOutputStream(PREFIX+"structdefs.h"), true);
95 outmethodheader=new PrintWriter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
96 outclassdefs=new PrintWriter(new FileOutputStream(PREFIX+"classdefs.h"), true);
97 outmethod=new PrintWriter(new FileOutputStream(PREFIX+"methods.c"), true);
98 outvirtual=new PrintWriter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
100 outtask=new PrintWriter(new FileOutputStream(PREFIX+"task.h"), true);
101 outtaskdefs=new PrintWriter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
103 outoptionalarrays=new PrintWriter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
104 optionalheaders=new PrintWriter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
107 if (state.structfile!=null) {
108 outrepairstructs=new PrintWriter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
110 } catch (Exception e) {
115 /* Build the virtual dispatch tables */
116 buildVirtualTables(outvirtual);
118 /* Output includes */
119 outmethodheader.println("#ifndef METHODHEADERS_H");
120 outmethodheader.println("#define METHODHEADERS_H");
121 outmethodheader.println("#include \"structdefs.h\"");
123 outmethodheader.println("#include \"dstm.h\"");
125 /* Output Structures */
126 outputStructs(outstructs);
128 // Output the C class declarations
129 // These could mutually reference each other
130 outputClassDeclarations(outclassdefs);
132 // Output function prototypes and structures for parameters
133 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
134 while(it.hasNext()) {
135 ClassDescriptor cn=(ClassDescriptor)it.next();
136 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader);
138 outclassdefs.close();
141 /* Map flags to integers */
142 /* The runtime keeps track of flags using these integers */
143 it=state.getClassSymbolTable().getDescriptorsIterator();
144 while(it.hasNext()) {
145 ClassDescriptor cn=(ClassDescriptor)it.next();
149 generateTaskStructs(outstructs, outmethodheader);
151 /* Outputs generic task structures if this is a task
153 outputTaskTypes(outtask);
156 /* Build the actual methods */
157 outputMethods(outmethod);
160 /* Output code for tasks */
161 outputTaskCode(outtaskdefs, outmethod);
163 /* Record maximum number of task parameters */
164 outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
165 } else if (state.main!=null) {
166 /* Generate main method */
167 outputMainMethod(outmethod);
170 /* Generate information for task with optional parameters */
171 if (state.TASK&&state.OPTIONAL){
172 generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
173 outoptionalarrays.close();
176 /* Output structure definitions for repair tool */
177 if (state.structfile!=null) {
178 buildRepairStructs(outrepairstructs);
179 outrepairstructs.close();
183 outmethodheader.println("#endif");
184 outmethodheader.close();
186 outstructs.println("#endif");
190 /* This code just generates the main C method for java programs.
191 * The main C method packs up the arguments into a string array
192 * and passes it to the java main method. */
194 private void outputMainMethod(PrintWriter outmethod) {
195 outmethod.println("int main(int argc, const char *argv[]) {");
196 outmethod.println(" int i;");
197 outmethod.println("#ifdef TRANSSTATS \n");
198 outmethod.println("handle();\n");
199 outmethod.println("#endif\n");
200 if (state.THREAD||state.DSM) {
201 outmethod.println("initializethreads();");
204 outmethod.println("if (dstmStartup(argv[1])) {");
205 if (GENERATEPRECISEGC) {
206 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-2);");
208 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-2);");
211 if (GENERATEPRECISEGC) {
212 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
214 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
218 outmethod.println(" for(i=2;i<argc;i++) {");
220 outmethod.println(" for(i=1;i<argc;i++) {");
221 outmethod.println(" int length=strlen(argv[i]);");
222 if (GENERATEPRECISEGC) {
223 outmethod.println(" struct ___String___ *newstring=NewString(NULL, argv[i], length);");
225 outmethod.println(" struct ___String___ *newstring=NewString(argv[i], length);");
228 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-2]=newstring;");
230 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
231 outmethod.println(" }");
234 MethodDescriptor md=typeutil.getMain();
235 ClassDescriptor cd=typeutil.getMainClass();
237 outmethod.println(" {");
238 if (GENERATEPRECISEGC) {
240 outmethod.print(" struct "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
242 outmethod.print(" struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
243 outmethod.println("1, NULL,"+"stringarray};");
245 outmethod.println(" "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
247 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
250 outmethod.println(" "+cd.getSafeSymbol()+locality.getMain().getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
252 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
254 outmethod.println(" }");
257 outmethod.println("}");
260 if (state.THREAD||state.DSM) {
261 outmethod.println("pthread_mutex_lock(&gclistlock);");
262 outmethod.println("threadcount--;");
263 outmethod.println("pthread_cond_signal(&gccond);");
264 outmethod.println("pthread_mutex_unlock(&gclistlock);");
266 outmethod.println("pthread_exit(NULL);");
269 outmethod.println("#ifdef TRANSSTATS \n");
270 outmethod.println("printf(\"****** Transaction Stats ******\\n\");");
271 outmethod.println("printf(\"numTransAbort= %d\\n\", numTransAbort);");
272 outmethod.println("printf(\"numTransCommit= %d\\n\", numTransCommit);");
273 outmethod.println("#endif\n");
274 outmethod.println("}");
278 /* This method outputs code for each task. */
280 private void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
281 /* Compile task based program */
282 outtaskdefs.println("#include \"task.h\"");
283 outtaskdefs.println("#include \"methodheaders.h\"");
284 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
285 while(taskit.hasNext()) {
286 TaskDescriptor td=(TaskDescriptor)taskit.next();
287 FlatMethod fm=state.getMethodFlat(td);
288 generateFlatMethod(fm, null, outmethod);
289 generateTaskDescriptor(outtaskdefs, fm, td);
292 //Output task descriptors
293 taskit=state.getTaskSymbolTable().getDescriptorsIterator();
294 outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
296 while(taskit.hasNext()) {
297 TaskDescriptor td=(TaskDescriptor)taskit.next();
301 outtaskdefs.println(",");
302 outtaskdefs.print("&task_"+td.getSafeSymbol());
304 outtaskdefs.println("};");
306 outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
309 /* This method outputs most of the methods.c file. This includes
310 * some standard includes and then an array with the sizes of
311 * objets and array that stores supertype and then the code for
312 * the Java methods.. */
314 protected void outputMethods(PrintWriter outmethod) {
315 outmethod.println("#include \"methodheaders.h\"");
316 outmethod.println("#include \"virtualtable.h\"");
317 outmethod.println("#include \"runtime.h\"");
318 outmethod.println("#include \"dstm.h\"");
320 outmethod.println("#include \"localobjects.h\"");
322 if(state.MULTICORE) {
323 outmethod.println("#include \"task.h\"");
325 if (state.THREAD||state.DSM)
326 outmethod.println("#include <thread.h>");
327 if (state.main!=null) {
328 outmethod.println("#include <string.h>");
330 if (state.CONSCHECK) {
331 outmethod.println("#include \"checkers.h\"");
333 //Store the sizes of classes & array elements
334 generateSizeArray(outmethod);
336 //Store table of supertypes
337 generateSuperTypeTable(outmethod);
339 //Store the layout of classes
340 generateLayoutStructs(outmethod);
342 /* Generate code for methods */
344 for(Iterator<LocalityBinding> lbit=locality.getLocalityBindings().iterator();lbit.hasNext();) {
345 LocalityBinding lb=lbit.next();
346 MethodDescriptor md=lb.getMethod();
347 FlatMethod fm=state.getMethodFlat(md);
348 if (!md.getModifiers().isNative()) {
349 generateFlatMethod(fm, lb, outmethod);
353 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
354 while(classit.hasNext()) {
355 ClassDescriptor cn=(ClassDescriptor)classit.next();
356 Iterator methodit=cn.getMethods();
357 while(methodit.hasNext()) {
358 /* Classify parameters */
359 MethodDescriptor md=(MethodDescriptor)methodit.next();
360 FlatMethod fm=state.getMethodFlat(md);
361 if (!md.getModifiers().isNative()) {
362 generateFlatMethod(fm, null, outmethod);
369 protected void outputStructs(PrintWriter outstructs) {
370 outstructs.println("#ifndef STRUCTDEFS_H");
371 outstructs.println("#define STRUCTDEFS_H");
372 outstructs.println("#include \"classdefs.h\"");
374 /* Output #defines that the runtime uses to determine type
375 * numbers for various objects it needs */
376 outstructs.println("#define MAXCOUNT "+maxcount);
378 LocalityBinding lb=new LocalityBinding(typeutil.getRun(), false);
379 lb.setGlobalThis(LocalityAnalysis.GLOBAL);
380 outstructs.println("#define RUNMETHOD "+virtualcalls.getLocalityNumber(lb));
383 outstructs.println("#define STRINGARRAYTYPE "+
384 (state.getArrayNumber(
385 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
387 outstructs.println("#define OBJECTARRAYTYPE "+
388 (state.getArrayNumber(
389 (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
392 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
393 outstructs.println("#define CHARARRAYTYPE "+
394 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
396 outstructs.println("#define BYTEARRAYTYPE "+
397 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
399 outstructs.println("#define BYTEARRAYARRAYTYPE "+
400 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
402 outstructs.println("#define NUMCLASSES "+state.numClasses());
404 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
405 outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
406 outstructs.println("#define TAGARRAYTYPE "+
407 (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
411 protected void outputClassDeclarations(PrintWriter outclassdefs) {
412 if (state.THREAD||state.DSM)
413 outclassdefs.println("#include <pthread.h>");
415 outclassdefs.println("#include \"optionalstruct.h\"");
416 outclassdefs.println("struct "+arraytype+";");
417 /* Start by declaring all structs */
418 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
419 while(it.hasNext()) {
420 ClassDescriptor cn=(ClassDescriptor)it.next();
421 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
423 outclassdefs.println("");
424 //Print out definition for array type
425 outclassdefs.println("struct "+arraytype+" {");
426 outclassdefs.println(" int type;");
428 outclassdefs.println(" pthread_t tid;");
429 outclassdefs.println(" void * lockentry;");
430 outclassdefs.println(" int lockcount;");
433 outclassdefs.println(" int flag;");
434 if(!state.MULTICORE) {
435 outclassdefs.println(" void * flagptr;");
437 outclassdefs.println(" int isolate;"); // indicate if this object is shared or not
438 outclassdefs.println(" int version;");
439 outclassdefs.println(" struct ___Object___ * original;");
442 outclassdefs.println(" int numfses;");
443 outclassdefs.println(" int * fses;");
446 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs);
448 outclassdefs.println(" int ___length___;");
449 outclassdefs.println("};\n");
450 outclassdefs.println("extern int classsize[];");
451 outclassdefs.println("extern int hasflags[];");
452 outclassdefs.println("extern unsigned int * pointerarray[];");
453 outclassdefs.println("extern int supertypes[];");
456 /** Prints out definitions for generic task structures */
458 private void outputTaskTypes(PrintWriter outtask) {
459 outtask.println("#ifndef _TASK_H");
460 outtask.println("#define _TASK_H");
461 outtask.println("struct parameterdescriptor {");
462 outtask.println("int type;");
463 outtask.println("int numberterms;");
464 outtask.println("int *intarray;");
465 outtask.println("void * queue;");
466 outtask.println("int numbertags;");
467 outtask.println("int *tagarray;");
468 outtask.println("};");
470 outtask.println("struct taskdescriptor {");
471 outtask.println("void * taskptr;");
472 outtask.println("int numParameters;");
473 outtask.println("struct parameterdescriptor **descriptorarray;");
474 outtask.println("char * name;");
475 outtask.println("};");
476 outtask.println("extern struct taskdescriptor * taskarray[];");
477 outtask.println("extern numtasks;");
478 outtask.println("#endif");
482 private void buildRepairStructs(PrintWriter outrepairstructs) {
483 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
484 while(classit.hasNext()) {
485 ClassDescriptor cn=(ClassDescriptor)classit.next();
486 outrepairstructs.println("structure "+cn.getSymbol()+" {");
487 outrepairstructs.println(" int __type__;");
489 outrepairstructs.println(" int __flag__;");
490 if(!state.MULTICORE) {
491 outrepairstructs.println(" int __flagptr__;");
494 printRepairStruct(cn, outrepairstructs);
495 outrepairstructs.println("}\n");
498 for(int i=0;i<state.numArrays();i++) {
499 TypeDescriptor tdarray=arraytable[i];
500 TypeDescriptor tdelement=tdarray.dereference();
501 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
502 outrepairstructs.println(" int __type__;");
503 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
504 outrepairstructs.println(" int length;");
506 // Need to add support to repair tool for this
507 if (tdelement.isClass()||tdelement.isArray())
508 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" * elem[this.length];");
510 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" elem[this.length];");
512 outrepairstructs.println("}\n");
516 private void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
517 ClassDescriptor sp=cn.getSuperDesc();
519 printRepairStruct(sp, output);
521 Vector fields=(Vector)fieldorder.get(cn);
523 for(int i=0;i<fields.size();i++) {
524 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
525 if (fd.getType().isArray()) {
526 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
527 } else if (fd.getType().isClass())
528 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
529 else if (fd.getType().isFloat())
530 output.println(" int "+fd.getSymbol()+"; /* really float */");
532 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
536 /** This method outputs TaskDescriptor information */
537 private void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
538 for (int i=0;i<task.numParameters();i++) {
539 VarDescriptor param_var=task.getParameter(i);
540 TypeDescriptor param_type=task.getParamType(i);
541 FlagExpressionNode param_flag=task.getFlag(param_var);
542 TagExpressionList param_tag=task.getTag(param_var);
545 if (param_flag==null) {
546 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
547 output.println("0x0, 0x0 };");
550 DNFFlag dflag=param_flag.getDNF();
551 dnfterms=dflag.size();
553 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
554 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
555 for(int j=0;j<dflag.size();j++) {
558 Vector term=dflag.get(j);
561 for(int k=0;k<term.size();k++) {
562 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
563 FlagDescriptor fd=dfa.getFlag();
564 boolean negated=dfa.getNegated();
565 int flagid=1<<((Integer)flags.get(fd)).intValue();
570 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
572 output.println("};");
575 output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
576 //BUG...added next line to fix, test with any task program
578 for(int j=0;j<param_tag.numTags();j++) {
581 /* for each tag we need */
582 /* which slot it is */
583 /* what type it is */
584 TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
585 TempDescriptor tmp=param_tag.getTemp(j);
586 int slot=fm.getTagInt(tmp);
587 output.println(slot+", "+state.getTagId(tvd.getTag()));
589 output.println("};");
591 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
592 output.println("/* type */"+param_type.getClassDesc().getId()+",");
593 output.println("/* number of DNF terms */"+dnfterms+",");
594 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
595 output.println("0,");
596 //BUG, added next line to fix and else statement...test
597 //with any task program
599 output.println("/* number of tags */"+param_tag.numTags()+",");
601 output.println("/* number of tags */ 0,");
602 output.println("parametertag_"+i+"_"+task.getSafeSymbol());
603 output.println("};");
607 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
608 for (int i=0;i<task.numParameters();i++) {
611 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
613 output.println("};");
615 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
616 output.println("&"+task.getSafeSymbol()+",");
617 output.println("/* number of parameters */" +task.numParameters() + ",");
618 int numtotal=task.numParameters()+fm.numTags();
619 output.println("/* number total parameters */" +numtotal + ",");
620 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
621 output.println("\""+task.getSymbol()+"\"");
622 output.println("};");
626 /** The buildVirtualTables method outputs the virtual dispatch
627 * tables for methods. */
629 protected void buildVirtualTables(PrintWriter outvirtual) {
630 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
631 while(classit.hasNext()) {
632 ClassDescriptor cd=(ClassDescriptor)classit.next();
633 if (virtualcalls.getMethodCount(cd)>maxcount)
634 maxcount=virtualcalls.getMethodCount(cd);
636 MethodDescriptor[][] virtualtable=null;
637 LocalityBinding[][] lbvirtualtable=null;
639 lbvirtualtable=new LocalityBinding[state.numClasses()+state.numArrays()][maxcount];
641 virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
643 /* Fill in virtual table */
644 classit=state.getClassSymbolTable().getDescriptorsIterator();
645 while(classit.hasNext()) {
646 ClassDescriptor cd=(ClassDescriptor)classit.next();
648 fillinRow(cd, lbvirtualtable, cd.getId());
650 fillinRow(cd, virtualtable, cd.getId());
653 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
654 Iterator arrayit=state.getArrayIterator();
655 while(arrayit.hasNext()) {
656 TypeDescriptor td=(TypeDescriptor)arrayit.next();
657 int id=state.getArrayNumber(td);
659 fillinRow(objectcd, lbvirtualtable, id+state.numClasses());
661 fillinRow(objectcd, virtualtable, id+state.numClasses());
664 outvirtual.print("void * virtualtable[]={");
665 boolean needcomma=false;
666 for(int i=0;i<state.numClasses()+state.numArrays();i++) {
667 for(int j=0;j<maxcount;j++) {
669 outvirtual.print(", ");
670 if (state.DSM&&lbvirtualtable[i][j]!=null) {
671 LocalityBinding lb=lbvirtualtable[i][j];
672 MethodDescriptor md=lb.getMethod();
673 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
674 } else if (!state.DSM&&virtualtable[i][j]!=null) {
675 MethodDescriptor md=virtualtable[i][j];
676 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
678 outvirtual.print("0");
682 outvirtual.println("");
684 outvirtual.println("};");
688 private void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
689 /* Get inherited methods */
690 if (cd.getSuperDesc()!=null)
691 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
692 /* Override them with our methods */
693 for(Iterator it=cd.getMethods();it.hasNext();) {
694 MethodDescriptor md=(MethodDescriptor)it.next();
695 if (md.isStatic()||md.getReturnType()==null)
697 int methodnum=virtualcalls.getMethodNumber(md);
698 virtualtable[rownum][methodnum]=md;
702 private void fillinRow(ClassDescriptor cd, LocalityBinding[][] virtualtable, int rownum) {
703 /* Get inherited methods */
704 if (cd.getSuperDesc()!=null)
705 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
706 /* Override them with our methods */
707 if (locality.getClassBindings(cd)!=null)
708 for(Iterator<LocalityBinding> lbit=locality.getClassBindings(cd).iterator();lbit.hasNext();) {
709 LocalityBinding lb=lbit.next();
710 MethodDescriptor md=lb.getMethod();
711 //Is the method static or a constructor
712 if (md.isStatic()||md.getReturnType()==null)
714 int methodnum=virtualcalls.getLocalityNumber(lb);
715 virtualtable[rownum][methodnum]=lb;
720 /** Generate array that contains the sizes of class objects. The
721 * object allocation functions in the runtime use this
724 private void generateSizeArray(PrintWriter outclassdefs) {
725 outclassdefs.print("extern struct prefetchCountStats * evalPrefetch;\n");
726 outclassdefs.print("#ifdef TRANSSTATS \n");
727 outclassdefs.print("extern int numTransAbort;\n");
728 outclassdefs.print("extern int numTransCommit;\n");
729 outclassdefs.print("extern void handle();\n");
730 outclassdefs.print("#endif\n");
731 outclassdefs.print("int numprefetchsites = " + pa.prefetchsiteid + ";\n");
733 outclassdefs.print("int classsize[]={");
734 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
735 cdarray=new ClassDescriptor[state.numClasses()];
736 while(it.hasNext()) {
737 ClassDescriptor cd=(ClassDescriptor)it.next();
738 cdarray[cd.getId()]=cd;
740 boolean needcomma=false;
741 for(int i=0;i<state.numClasses();i++) {
743 outclassdefs.print(", ");
744 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
748 arraytable=new TypeDescriptor[state.numArrays()];
750 Iterator arrayit=state.getArrayIterator();
751 while(arrayit.hasNext()) {
752 TypeDescriptor td=(TypeDescriptor)arrayit.next();
753 int id=state.getArrayNumber(td);
757 for(int i=0;i<state.numArrays();i++) {
759 outclassdefs.print(", ");
760 TypeDescriptor tdelement=arraytable[i].dereference();
761 if (tdelement.isArray()||tdelement.isClass())
762 outclassdefs.print("sizeof(void *)");
764 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
768 outclassdefs.println("};");
771 /** Constructs params and temp objects for each method or task.
772 * These objects tell the compiler which temps need to be
775 protected void generateTempStructs(FlatMethod fm, LocalityBinding lb) {
776 MethodDescriptor md=fm.getMethod();
777 TaskDescriptor task=fm.getTask();
778 Set<TempDescriptor> saveset=lb!=null?locality.getTempSet(lb):null;
779 ParamsObject objectparams=md!=null?new ParamsObject(md,tag++):new ParamsObject(task, tag++);
782 paramstable.put(lb, objectparams);
784 paramstable.put(md, objectparams);
786 paramstable.put(task, objectparams);
788 for(int i=0;i<fm.numParameters();i++) {
789 TempDescriptor temp=fm.getParameter(i);
790 TypeDescriptor type=temp.getType();
791 if (type.isPtr()&&GENERATEPRECISEGC)
792 objectparams.addPtr(temp);
794 objectparams.addPrim(temp);
795 if(lb!=null&&saveset.contains(temp)) {
796 backuptable.put(temp, temp.createNew());
800 for(int i=0;i<fm.numTags();i++) {
801 TempDescriptor temp=fm.getTag(i);
802 if (GENERATEPRECISEGC)
803 objectparams.addPtr(temp);
805 objectparams.addPrim(temp);
808 TempObject objecttemps=md!=null?new TempObject(objectparams,md,tag++):new TempObject(objectparams, task, tag++);
810 tempstable.put(lb, objecttemps);
812 tempstable.put(md, objecttemps);
814 tempstable.put(task, objecttemps);
816 for(Iterator nodeit=fm.getNodeSet().iterator();nodeit.hasNext();) {
817 FlatNode fn=(FlatNode)nodeit.next();
818 TempDescriptor[] writes=fn.writesTemps();
819 for(int i=0;i<writes.length;i++) {
820 TempDescriptor temp=writes[i];
821 TypeDescriptor type=temp.getType();
822 if (type.isPtr()&&GENERATEPRECISEGC)
823 objecttemps.addPtr(temp);
825 objecttemps.addPrim(temp);
826 if(lb!=null&&saveset.contains(temp)&&
827 !backuptable.containsKey(temp))
828 backuptable.put(temp, temp.createNew());
832 /* Create backup temps */
834 for(Iterator<TempDescriptor> tmpit=backuptable.values().iterator();tmpit.hasNext();) {
835 TempDescriptor tmp=tmpit.next();
836 TypeDescriptor type=tmp.getType();
837 if (type.isPtr()&&GENERATEPRECISEGC)
838 objecttemps.addPtr(tmp);
840 objecttemps.addPrim(tmp);
842 /* Create temp to hold revert table */
843 if (lb.getHasAtomic()||lb.isAtomic()) {
844 TempDescriptor reverttmp=new TempDescriptor("revertlist", typeutil.getClass(TypeUtil.ObjectClass));
845 if (GENERATEPRECISEGC)
846 objecttemps.addPtr(reverttmp);
848 objecttemps.addPrim(reverttmp);
849 reverttable.put(lb, reverttmp);
854 /** This method outputs the following information about classes
856 * (1) For classes, what are the locations of pointers.
857 * (2) For arrays, does the array contain pointers or primitives.
858 * (3) For classes, does the class contain flags.
861 private void generateLayoutStructs(PrintWriter output) {
862 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
863 while(it.hasNext()) {
864 ClassDescriptor cn=(ClassDescriptor)it.next();
865 output.println("unsigned int "+cn.getSafeSymbol()+"_pointers[]={");
866 Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
868 while(allit.hasNext()) {
869 FieldDescriptor fd=(FieldDescriptor)allit.next();
870 TypeDescriptor type=fd.getType();
871 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
877 allit=cn.getFieldTable().getAllDescriptorsIterator();
878 while(allit.hasNext()) {
879 FieldDescriptor fd=(FieldDescriptor)allit.next();
880 TypeDescriptor type=fd.getType();
881 if (state.DSM&&fd.isGlobal()) //Don't GC the global objects for now
885 output.print("((unsigned int)&(((struct "+cn.getSafeSymbol() +" *)0)->"+fd.getSafeSymbol()+"))");
888 output.println("};");
890 output.println("unsigned int * pointerarray[]={");
891 boolean needcomma=false;
892 for(int i=0;i<state.numClasses();i++) {
893 ClassDescriptor cn=cdarray[i];
897 output.print(cn.getSafeSymbol()+"_pointers");
900 for(int i=0;i<state.numArrays();i++) {
902 output.println(", ");
903 TypeDescriptor tdelement=arraytable[i].dereference();
904 if (tdelement.isArray()||tdelement.isClass())
905 output.print("((unsigned int *)1)");
911 output.println("};");
913 output.println("int hasflags[]={");
914 for(int i=0;i<state.numClasses();i++) {
915 ClassDescriptor cn=cdarray[i];
917 output.println(", ");
924 output.println("};");
927 /** Print out table to give us supertypes */
928 private void generateSuperTypeTable(PrintWriter output) {
929 output.println("int supertypes[]={");
930 boolean needcomma=false;
931 for(int i=0;i<state.numClasses();i++) {
932 ClassDescriptor cn=cdarray[i];
936 if (cn.getSuperDesc()!=null) {
937 ClassDescriptor cdsuper=cn.getSuperDesc();
938 output.print(cdsuper.getId());
942 output.println("};");
945 /** Force consistent field ordering between inherited classes. */
947 private void printClassStruct(ClassDescriptor cn, PrintWriter classdefout) {
949 ClassDescriptor sp=cn.getSuperDesc();
951 printClassStruct(sp, classdefout);
953 if (!fieldorder.containsKey(cn)) {
954 Vector fields=new Vector();
955 fieldorder.put(cn,fields);
956 if (sp==null&&!state.TASK) {
957 fields.add(cn.getFieldTable().get("cachedCode"));
959 Iterator fieldit=cn.getFields();
960 while(fieldit.hasNext()) {
961 FieldDescriptor fd=(FieldDescriptor)fieldit.next();
962 if ((sp==null||!sp.getFieldTable().contains(fd.getSymbol()))&&
963 (!fd.getSymbol().equals("cachedCode")||state.TASK))
967 Vector fields=(Vector)fieldorder.get(cn);
969 for(int i=0;i<fields.size();i++) {
970 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
971 if (fd.getType().isClass()||fd.getType().isArray())
972 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
974 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
979 /* Map flags to integers consistently between inherited
982 protected void mapFlags(ClassDescriptor cn) {
983 ClassDescriptor sp=cn.getSuperDesc();
987 if (!flagorder.containsKey(cn)) {
988 Hashtable flags=new Hashtable();
989 flagorder.put(cn,flags);
991 Hashtable superflags=(Hashtable)flagorder.get(sp);
992 Iterator superflagit=superflags.keySet().iterator();
993 while(superflagit.hasNext()) {
994 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
995 Integer number=(Integer)superflags.get(fd);
996 flags.put(fd, number);
997 if ((number.intValue()+1)>max)
998 max=number.intValue()+1;
1002 Iterator flagit=cn.getFlags();
1003 while(flagit.hasNext()) {
1004 FlagDescriptor fd=(FlagDescriptor)flagit.next();
1005 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
1006 flags.put(fd, new Integer(max++));
1012 /** This function outputs (1) structures that parameters are
1013 * passed in (when PRECISE GC is enabled) and (2) function
1014 * prototypes for the methods */
1016 protected void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
1017 /* Output class structure */
1018 classdefout.println("struct "+cn.getSafeSymbol()+" {");
1019 classdefout.println(" int type;");
1021 classdefout.println(" pthread_t tid;");
1022 classdefout.println(" void * lockentry;");
1023 classdefout.println(" int lockcount;");
1027 classdefout.println(" int flag;");
1028 if((!state.MULTICORE) || (cn.getSymbol().equals("TagDescriptor"))) {
1029 classdefout.println(" void * flagptr;");
1030 } else if (state.MULTICORE){
1031 classdefout.println(" int isolate;"); // indicate if this object is shared or not
1032 classdefout.println(" int version;");
1033 classdefout.println(" struct ___Object___ * original;");
1035 if (state.OPTIONAL){
1036 classdefout.println(" int numfses;");
1037 classdefout.println(" int * fses;");
1040 printClassStruct(cn, classdefout);
1041 classdefout.println("};\n");
1044 /* Cycle through LocalityBindings */
1045 HashSet<MethodDescriptor> nativemethods=new HashSet<MethodDescriptor>();
1046 Set<LocalityBinding> lbset=locality.getClassBindings(cn);
1048 for(Iterator<LocalityBinding> lbit=lbset.iterator();lbit.hasNext();) {
1049 LocalityBinding lb=lbit.next();
1050 MethodDescriptor md=lb.getMethod();
1051 if (md.getModifiers().isNative()) {
1052 //make sure we only print a native method once
1053 if (nativemethods.contains(md)) {
1054 FlatMethod fm=state.getMethodFlat(md);
1055 generateTempStructs(fm, lb);
1058 nativemethods.add(md);
1060 generateMethod(cn, md, lb, headersout, output);
1063 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1064 MethodDescriptor md=(MethodDescriptor)methodit.next();
1065 if (md.getModifiers().isNative()&&!nativemethods.contains(md)) {
1066 //Need to build param structure for library code
1067 FlatMethod fm=state.getMethodFlat(md);
1068 generateTempStructs(fm, null);
1069 generateMethodParam(cn, md, null, output);
1074 for(Iterator methodit=cn.getMethods();methodit.hasNext();) {
1075 MethodDescriptor md=(MethodDescriptor)methodit.next();
1076 generateMethod(cn, md, null, headersout, output);
1080 private void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter output) {
1081 /* Output parameter structure */
1082 if (GENERATEPRECISEGC) {
1083 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1084 if (state.DSM&&lb!=null)
1085 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1087 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1088 output.println(" int size;");
1089 output.println(" void * next;");
1090 for(int i=0;i<objectparams.numPointers();i++) {
1091 TempDescriptor temp=objectparams.getPointer(i);
1092 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1094 output.println("};\n");
1099 private void generateMethod(ClassDescriptor cn, MethodDescriptor md, LocalityBinding lb, PrintWriter headersout, PrintWriter output) {
1100 FlatMethod fm=state.getMethodFlat(md);
1101 generateTempStructs(fm, lb);
1103 ParamsObject objectparams=(ParamsObject) paramstable.get(lb!=null?lb:md);
1104 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md);
1106 generateMethodParam(cn, md, lb, output);
1108 /* Output temp structure */
1109 if (GENERATEPRECISEGC) {
1111 output.println("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1113 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1114 output.println(" int size;");
1115 output.println(" void * next;");
1116 for(int i=0;i<objecttemps.numPointers();i++) {
1117 TempDescriptor temp=objecttemps.getPointer(i);
1118 if (temp.getType().isNull())
1119 output.println(" void * "+temp.getSafeSymbol()+";");
1121 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1123 output.println("};\n");
1126 /********* Output method declaration ***********/
1128 /* First the return type */
1129 if (md.getReturnType()!=null) {
1130 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1131 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1133 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1135 //catch the constructor case
1136 headersout.print("void ");
1138 /* Next the method name */
1140 headersout.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1142 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1144 boolean printcomma=false;
1145 if (GENERATEPRECISEGC) {
1147 headersout.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1149 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1153 if (state.DSM&&lb.isAtomic()&&!md.getModifiers().isNative()) {
1155 headersout.print(", ");
1156 headersout.print("transrecord_t * trans");
1160 /* Output parameter list*/
1161 for(int i=0;i<objectparams.numPrimitives();i++) {
1162 TempDescriptor temp=objectparams.getPrimitive(i);
1164 headersout.print(", ");
1166 if (temp.getType().isClass()||temp.getType().isArray())
1167 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1169 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1171 headersout.println(");\n");
1175 /** This function outputs (1) structures that parameters are
1176 * passed in (when PRECISE GC is enabled) and (2) function
1177 * prototypes for the tasks */
1179 private void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1180 /* Cycle through tasks */
1181 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1183 while(taskit.hasNext()) {
1184 /* Classify parameters */
1185 TaskDescriptor task=(TaskDescriptor)taskit.next();
1186 FlatMethod fm=state.getMethodFlat(task);
1187 generateTempStructs(fm, null);
1189 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1190 TempObject objecttemps=(TempObject) tempstable.get(task);
1192 /* Output parameter structure */
1193 if (GENERATEPRECISEGC) {
1194 output.println("struct "+task.getSafeSymbol()+"_params {");
1196 output.println(" int size;");
1197 output.println(" void * next;");
1198 for(int i=0;i<objectparams.numPointers();i++) {
1199 TempDescriptor temp=objectparams.getPointer(i);
1200 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1203 output.println("};\n");
1204 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1205 maxtaskparams=objectparams.numPointers()+fm.numTags();
1209 /* Output temp structure */
1210 if (GENERATEPRECISEGC) {
1211 output.println("struct "+task.getSafeSymbol()+"_locals {");
1212 output.println(" int size;");
1213 output.println(" void * next;");
1214 for(int i=0;i<objecttemps.numPointers();i++) {
1215 TempDescriptor temp=objecttemps.getPointer(i);
1216 if (temp.getType().isNull())
1217 output.println(" void * "+temp.getSafeSymbol()+";");
1218 else if(temp.getType().isTag())
1219 output.println(" struct "+
1220 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1222 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1224 output.println("};\n");
1227 /* Output task declaration */
1228 headersout.print("void " + task.getSafeSymbol()+"(");
1230 boolean printcomma=false;
1231 if (GENERATEPRECISEGC) {
1232 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1234 headersout.print("void * parameterarray[]");
1235 headersout.println(");\n");
1239 /***** Generate code for FlatMethod fm. *****/
1241 private void generateFlatMethod(FlatMethod fm, LocalityBinding lb, PrintWriter output) {
1242 if (State.PRINTFLAT)
1243 System.out.println(fm.printMethod());
1244 MethodDescriptor md=fm.getMethod();
1246 TaskDescriptor task=fm.getTask();
1248 ClassDescriptor cn=md!=null?md.getClassDesc():null;
1250 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:md!=null?md:task);
1251 generateHeader(fm, lb, md!=null?md:task,output);
1252 TempObject objecttemp=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1253 if (state.DSM&&lb.getHasAtomic()) {
1254 output.println("transrecord_t * trans;");
1257 if (GENERATEPRECISEGC) {
1258 if (md!=null&&state.DSM)
1259 output.print(" struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1260 else if (md!=null&&!state.DSM)
1261 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1263 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
1265 output.print(objecttemp.numPointers()+",");
1266 output.print(paramsprefix);
1267 for(int j=0;j<objecttemp.numPointers();j++)
1268 output.print(", NULL");
1269 output.println("};");
1272 for(int i=0;i<objecttemp.numPrimitives();i++) {
1273 TempDescriptor td=objecttemp.getPrimitive(i);
1274 TypeDescriptor type=td.getType();
1276 output.println(" void * "+td.getSafeSymbol()+";");
1277 else if (type.isClass()||type.isArray())
1278 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1280 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1283 /* Assign labels to FlatNode's if necessary.*/
1285 Hashtable<FlatNode, Integer> nodetolabel=assignLabels(fm);
1287 /* Check to see if we need to do a GC if this is a
1288 * multi-threaded program...*/
1290 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1291 if (state.DSM&&lb.isAtomic())
1292 output.println("checkcollect2(&"+localsprefix+",trans);");
1294 output.println("checkcollect(&"+localsprefix+");");
1297 /* Do the actual code generation */
1298 FlatNode current_node=null;
1299 HashSet tovisit=new HashSet();
1300 HashSet visited=new HashSet();
1301 tovisit.add(fm.getNext(0));
1302 while(current_node!=null||!tovisit.isEmpty()) {
1303 if (current_node==null) {
1304 current_node=(FlatNode)tovisit.iterator().next();
1305 tovisit.remove(current_node);
1307 visited.add(current_node);
1308 if (nodetolabel.containsKey(current_node))
1309 output.println("L"+nodetolabel.get(current_node)+":");
1310 if (state.INSTRUCTIONFAILURE) {
1311 if (state.THREAD||state.DSM) {
1312 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
1315 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
1317 if (current_node.numNext()==0) {
1319 generateFlatNode(fm, lb, current_node, output);
1320 if (current_node.kind()!=FKind.FlatReturnNode) {
1321 output.println(" return;");
1324 } else if(current_node.numNext()==1) {
1326 generateFlatNode(fm, lb, current_node, output);
1327 FlatNode nextnode=current_node.getNext(0);
1328 if (visited.contains(nextnode)) {
1329 output.println("goto L"+nodetolabel.get(nextnode)+";");
1332 current_node=nextnode;
1333 } else if (current_node.numNext()==2) {
1336 generateFlatCondBranch(fm, lb, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
1337 if (!visited.contains(current_node.getNext(1)))
1338 tovisit.add(current_node.getNext(1));
1339 if (visited.contains(current_node.getNext(0))) {
1340 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
1343 current_node=current_node.getNext(0);
1344 } else throw new Error();
1346 output.println("}\n\n");
1349 /** This method assigns labels to FlatNodes */
1351 protected Hashtable<FlatNode, Integer> assignLabels(FlatMethod fm) {
1352 HashSet tovisit=new HashSet();
1353 HashSet visited=new HashSet();
1355 Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
1356 tovisit.add(fm.getNext(0));
1358 /*Assign labels first. A node needs a label if the previous
1359 * node has two exits or this node is a join point. */
1361 while(!tovisit.isEmpty()) {
1362 FlatNode fn=(FlatNode)tovisit.iterator().next();
1365 for(int i=0;i<fn.numNext();i++) {
1366 FlatNode nn=fn.getNext(i);
1368 //1) Edge >1 of node
1369 nodetolabel.put(nn,new Integer(labelindex++));
1371 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1375 nodetolabel.put(nn,new Integer(labelindex++));
1383 /** Generate text string that corresponds to the TempDescriptor td. */
1384 protected String generateTemp(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1385 MethodDescriptor md=fm.getMethod();
1386 TaskDescriptor task=fm.getTask();
1387 TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1389 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1390 return td.getSafeSymbol();
1393 if (objecttemps.isLocalPtr(td)) {
1394 return localsprefix+"."+td.getSafeSymbol();
1397 if (objecttemps.isParamPtr(td)) {
1398 return paramsprefix+"->"+td.getSafeSymbol();
1403 protected void generateFlatNode(FlatMethod fm, LocalityBinding lb, FlatNode fn, PrintWriter output) {
1405 case FKind.FlatAtomicEnterNode:
1406 generateFlatAtomicEnterNode(fm, lb, (FlatAtomicEnterNode) fn, output);
1408 case FKind.FlatAtomicExitNode:
1409 generateFlatAtomicExitNode(fm, lb, (FlatAtomicExitNode) fn, output);
1411 case FKind.FlatGlobalConvNode:
1412 generateFlatGlobalConvNode(fm, lb, (FlatGlobalConvNode) fn, output);
1414 case FKind.FlatTagDeclaration:
1415 generateFlatTagDeclaration(fm, lb, (FlatTagDeclaration) fn,output);
1417 case FKind.FlatCall:
1418 generateFlatCall(fm, lb, (FlatCall) fn,output);
1420 case FKind.FlatFieldNode:
1421 generateFlatFieldNode(fm, lb, (FlatFieldNode) fn,output);
1423 case FKind.FlatElementNode:
1424 generateFlatElementNode(fm, lb, (FlatElementNode) fn,output);
1426 case FKind.FlatSetElementNode:
1427 generateFlatSetElementNode(fm, lb, (FlatSetElementNode) fn,output);
1429 case FKind.FlatSetFieldNode:
1430 generateFlatSetFieldNode(fm, lb, (FlatSetFieldNode) fn,output);
1433 generateFlatNew(fm, lb, (FlatNew) fn,output);
1435 case FKind.FlatOpNode:
1436 generateFlatOpNode(fm, lb, (FlatOpNode) fn,output);
1438 case FKind.FlatCastNode:
1439 generateFlatCastNode(fm, lb, (FlatCastNode) fn,output);
1441 case FKind.FlatLiteralNode:
1442 generateFlatLiteralNode(fm, lb, (FlatLiteralNode) fn,output);
1444 case FKind.FlatReturnNode:
1445 generateFlatReturnNode(fm, lb, (FlatReturnNode) fn,output);
1448 output.println("/* nop */");
1450 case FKind.FlatBackEdge:
1451 if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
1452 if(state.DSM&&locality.getAtomic(lb).get(fn).intValue()>0) {
1453 output.println("checkcollect2(&"+localsprefix+",trans);");
1455 output.println("checkcollect(&"+localsprefix+");");
1457 output.println("/* nop */");
1459 case FKind.FlatCheckNode:
1460 generateFlatCheckNode(fm, lb, (FlatCheckNode) fn, output);
1462 case FKind.FlatFlagActionNode:
1463 generateFlatFlagActionNode(fm, lb, (FlatFlagActionNode) fn, output);
1465 case FKind.FlatPrefetchNode:
1466 generateFlatPrefetchNode(fm,lb, (FlatPrefetchNode) fn, output);
1472 public void generateFlatPrefetchNode(FlatMethod fm, LocalityBinding lb, FlatPrefetchNode fpn, PrintWriter output) {
1473 if (state.PREFETCH) {
1474 Vector oids = new Vector();
1475 Vector fieldoffset = new Vector();
1476 Vector endoffset = new Vector();
1477 int tuplecount = 0; //Keeps track of number of prefetch tuples that need to be generated
1478 for(Iterator it = fpn.hspp.iterator();it.hasNext();) {
1479 PrefetchPair pp = (PrefetchPair) it.next();
1480 Integer statusbase = locality.getNodePreTempInfo(lb,fpn).get(pp.base);
1481 /* Find prefetches that can generate oid */
1482 if(statusbase == LocalityAnalysis.GLOBAL) {
1483 generateTransCode(fm, lb, pp, oids, fieldoffset, endoffset, tuplecount, locality.getAtomic(lb).get(fpn).intValue()>0, false);
1485 } else if (statusbase == LocalityAnalysis.LOCAL) {
1486 generateTransCode(fm,lb,pp,oids,fieldoffset,endoffset,tuplecount,false,true);
1493 output.println("{");
1494 output.println("/* prefetch */");
1495 output.println("/* prefetchid_" + fpn.siteid + " */");
1496 output.println("void * prefptr;");
1497 output.println("int tmpindex;");
1498 /*Create C code for oid array */
1499 output.print(" unsigned int oidarray_[] = {");
1500 boolean needcomma=false;
1501 for (Iterator it = oids.iterator();it.hasNext();) {
1504 output.print(it.next());
1507 output.println("};");
1509 /*Create C code for endoffset values */
1510 output.print(" unsigned short endoffsetarry_[] = {");
1512 for (Iterator it = endoffset.iterator();it.hasNext();) {
1515 output.print(it.next());
1518 output.println("};");
1520 /*Create C code for Field Offset Values */
1521 output.print(" short fieldarry_[] = {");
1523 for (Iterator it = fieldoffset.iterator();it.hasNext();) {
1526 output.print(it.next());
1529 output.println("};");
1530 /* make the prefetch call to Runtime */
1531 output.println(" if(evalPrefetch["+fpn.siteid+"].operMode) {");
1532 output.println(" prefetch("+fpn.siteid+" ,"+tuplecount+", oidarray_, endoffsetarry_, fieldarry_);");
1533 output.println(" } else if(evalPrefetch["+fpn.siteid+"].retrycount <= 0) {");
1534 output.println(" prefetch("+fpn.siteid+" ,"+tuplecount+", oidarray_, endoffsetarry_, fieldarry_);");
1535 output.println(" evalPrefetch["+fpn.siteid+"].retrycount = RETRYINTERVAL;");
1536 output.println(" } else {");
1537 output.println(" evalPrefetch["+fpn.siteid+"].retrycount--;");
1538 output.println(" }");
1539 output.println("}");
1543 public void generateTransCode(FlatMethod fm, LocalityBinding lb,PrefetchPair pp, Vector oids, Vector fieldoffset, Vector endoffset, int tuplecount, boolean inside, boolean localbase) {
1544 short offsetcount = 0;
1548 } else if (localbase) {
1549 for(;breakindex<pp.desc.size();breakindex++) {
1550 Descriptor desc=pp.getDescAt(breakindex);
1551 if (desc instanceof FieldDescriptor) {
1552 FieldDescriptor fd=(FieldDescriptor)desc;
1553 if (fd.isGlobal()) {
1561 if (breakindex>pp.desc.size()) //all local
1564 TypeDescriptor lasttype=pp.base.getType();
1565 String basestr=generateTemp(fm, pp.base, lb);
1567 boolean maybenull=fm.getMethod().isStatic()||
1568 !pp.base.equals(fm.getParameter(0));
1570 for(int i=0;i<breakindex;i++) {
1571 String indexcheck="";
1573 Descriptor desc=pp.getDescAt(i);
1574 if (desc instanceof FieldDescriptor) {
1575 FieldDescriptor fd=(FieldDescriptor)desc;
1577 if (!teststr.equals(""))
1579 teststr+="((prefptr="+basestr+")!=NULL)";
1580 basestr="((struct "+lasttype.getSafeSymbol()+" *)prefptr)->"+fd.getSafeSymbol();
1582 basestr=basestr+"->"+fd.getSafeSymbol();
1585 lasttype=fd.getType();
1587 IndexDescriptor id=(IndexDescriptor)desc;
1588 indexcheck="((tmpindex=";
1589 for(int j=0;j<id.tddesc.size();j++) {
1590 indexcheck+=generateTemp(fm, id.getTempDescAt(j), lb)+"+";
1592 indexcheck+=id.offset+")>=0)&&(tmpindex<((struct ArrayObject *)prefptr)->___length___)";
1594 if (!teststr.equals(""))
1596 teststr+="((prefptr="+basestr+")!= NULL) &&"+indexcheck;
1597 basestr="((void **)(((char *) &(((struct ArrayObject *)prefptr)->___length___))+sizeof(int)))[tmpindex]";
1599 lasttype=lasttype.dereference();
1604 if (teststr.equals("")) {
1605 oid="((unsigned int)"+basestr+")";
1607 oid="((unsigned int)(("+teststr+")?"+basestr+":NULL))";
1611 for(int i = breakindex; i < pp.desc.size(); i++) {
1612 String newfieldoffset;
1613 Object desc = pp.getDescAt(i);
1614 if(desc instanceof FieldDescriptor) {
1615 FieldDescriptor fd=(FieldDescriptor)desc;
1616 newfieldoffset = new String("(unsigned int)(&(((struct "+ lasttype.getSafeSymbol()+" *)0)->"+ fd.getSafeSymbol()+ "))");
1617 lasttype=fd.getType();
1619 newfieldoffset = "";
1620 IndexDescriptor id=(IndexDescriptor)desc;
1621 for(int j = 0; j < id.tddesc.size(); j++) {
1622 newfieldoffset += generateTemp(fm, id.getTempDescAt(j), lb) + "+";
1624 newfieldoffset += id.offset.toString();
1625 lasttype=lasttype.dereference();
1627 fieldoffset.add(newfieldoffset);
1630 int base=(tuplecount>0)?((Short)endoffset.get(tuplecount-1)).intValue():0;
1631 base+=pp.desc.size()-breakindex;
1632 endoffset.add(new Short((short)base));
1637 public void generateFlatGlobalConvNode(FlatMethod fm, LocalityBinding lb, FlatGlobalConvNode fgcn, PrintWriter output) {
1638 if (lb!=fgcn.getLocality())
1640 /* Have to generate flat globalconv */
1641 if (fgcn.getMakePtr()) {
1642 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)transRead(trans, (unsigned int) "+generateTemp(fm, fgcn.getSrc(),lb)+");");
1644 /* Need to convert to OID */
1645 output.println(generateTemp(fm, fgcn.getSrc(),lb)+"=(void *)COMPOID("+generateTemp(fm, fgcn.getSrc(),lb)+");");
1649 public void generateFlatAtomicEnterNode(FlatMethod fm, LocalityBinding lb, FlatAtomicEnterNode faen, PrintWriter output) {
1650 /* Check to see if we need to generate code for this atomic */
1651 if (locality.getAtomic(lb).get(faen.getPrev(0)).intValue()>0)
1653 /* Backup the temps. */
1654 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1655 TempDescriptor tmp=tmpit.next();
1656 output.println(generateTemp(fm, backuptable.get(tmp),lb)+"="+generateTemp(fm,tmp,lb)+";");
1658 output.println("goto transstart"+faen.getIdentifier()+";");
1660 /******* Print code to retry aborted transaction *******/
1661 output.println("transretry"+faen.getIdentifier()+":");
1664 for(Iterator<TempDescriptor> tmpit=locality.getTemps(lb).get(faen).iterator();tmpit.hasNext();) {
1665 TempDescriptor tmp=tmpit.next();
1666 output.println(generateTemp(fm, tmp,lb)+"="+generateTemp(fm,backuptable.get(tmp),lb)+";");
1669 /********* Need to revert local object store ********/
1670 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1672 output.println("while ("+revertptr+") {");
1673 output.println("struct ___Object___ * tmpptr;");
1674 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1675 output.println("REVERT_OBJ("+revertptr+");");
1676 output.println(revertptr+"=tmpptr;");
1677 output.println("}");
1679 /******* Tell the runtime to start the transaction *******/
1681 output.println("transstart"+faen.getIdentifier()+":");
1682 output.println("trans=transStart();");
1685 public void generateFlatAtomicExitNode(FlatMethod fm, LocalityBinding lb, FlatAtomicExitNode faen, PrintWriter output) {
1686 /* Check to see if we need to generate code for this atomic */
1687 if (locality.getAtomic(lb).get(faen).intValue()>0)
1689 //store the revert list before we lose the transaction object
1690 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1691 output.println(revertptr+"=trans->revertlist;");
1692 output.println("if (transCommit(trans)) {");
1693 /* Transaction aborts if it returns true */
1694 output.println("goto transretry"+faen.getAtomicEnter().getIdentifier()+";");
1695 output.println("} else {");
1696 /* Need to commit local object store */
1697 output.println("while ("+revertptr+") {");
1698 output.println("struct ___Object___ * tmpptr;");
1699 output.println("tmpptr="+revertptr+"->"+nextobjstr+";");
1700 output.println("COMMIT_OBJ("+revertptr+");");
1701 output.println(revertptr+"=tmpptr;");
1702 output.println("}");
1703 output.println("}");
1706 private void generateFlatCheckNode(FlatMethod fm, LocalityBinding lb, FlatCheckNode fcn, PrintWriter output) {
1707 if (state.CONSCHECK) {
1708 String specname=fcn.getSpec();
1709 String varname="repairstate___";
1710 output.println("{");
1711 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1713 TempDescriptor[] temps=fcn.getTemps();
1714 String[] vars=fcn.getVars();
1715 for(int i=0;i<temps.length;i++) {
1716 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i],lb)+";");
1719 output.println("if (doanalysis"+specname+"("+varname+")) {");
1720 output.println("free"+specname+"_state("+varname+");");
1721 output.println("} else {");
1722 output.println("/* Bad invariant */");
1723 output.println("free"+specname+"_state("+varname+");");
1724 output.println("abort_task();");
1725 output.println("}");
1726 output.println("}");
1730 private void generateFlatCall(FlatMethod fm, LocalityBinding lb, FlatCall fc, PrintWriter output) {
1731 MethodDescriptor md=fc.getMethod();
1732 ParamsObject objectparams=(ParamsObject)paramstable.get(state.DSM?locality.getBinding(lb, fc):md);
1733 ClassDescriptor cn=md.getClassDesc();
1734 output.println("{");
1735 if (GENERATEPRECISEGC) {
1737 LocalityBinding fclb=locality.getBinding(lb, fc);
1738 output.print(" struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1740 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1742 output.print(objectparams.numPointers());
1743 output.print(", & "+localsprefix);
1744 if (md.getThis()!=null) {
1746 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis(),lb));
1748 if (fc.getThis()!=null&&md.getThis()==null) {
1749 System.out.println("WARNING!!!!!!!!!!!!");
1750 System.out.println("Source code calls static method"+md+"on an object in "+fm.getMethod()+"!");
1754 for(int i=0;i<fc.numArgs();i++) {
1755 Descriptor var=md.getParameter(i);
1756 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1757 if (objectparams.isParamPtr(paramtemp)) {
1758 TempDescriptor targ=fc.getArg(i);
1760 TypeDescriptor td=md.getParamType(i);
1762 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1764 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ,lb));
1767 output.println("};");
1772 if (fc.getReturnTemp()!=null)
1773 output.print(generateTemp(fm,fc.getReturnTemp(),lb)+"=");
1775 /* Do we need to do virtual dispatch? */
1776 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
1779 LocalityBinding fclb=locality.getBinding(lb, fc);
1780 output.print(cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1782 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1787 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1788 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1790 output.print(md.getReturnType().getSafeSymbol()+" ");
1791 output.print("(*)(");
1793 boolean printcomma=false;
1794 if (GENERATEPRECISEGC) {
1796 LocalityBinding fclb=locality.getBinding(lb, fc);
1797 output.print("struct "+cn.getSafeSymbol()+fclb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1799 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1803 for(int i=0;i<objectparams.numPrimitives();i++) {
1804 TempDescriptor temp=objectparams.getPrimitive(i);
1808 if (temp.getType().isClass()||temp.getType().isArray())
1809 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
1811 output.print(temp.getType().getSafeSymbol());
1814 if (state.DSM&&locality.getBinding(lb,fc).isAtomic()&&!fc.getMethod().getModifiers().isNative()) {
1815 LocalityBinding fclb=locality.getBinding(lb, fc);
1818 output.print("transrecord_t *");
1823 LocalityBinding fclb=locality.getBinding(lb, fc);
1824 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getLocalityNumber(fclb)+"])");
1826 output.print("))virtualtable["+generateTemp(fm,fc.getThis(),lb)+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
1830 boolean needcomma=false;
1831 if (GENERATEPRECISEGC) {
1832 output.print("&__parameterlist__");
1836 if (state.DSM&&locality.getBinding(lb,fc).isAtomic()&&!fc.getMethod().getModifiers().isNative()) {
1839 output.print("trans");
1843 if (!GENERATEPRECISEGC) {
1844 if (fc.getThis()!=null) {
1845 TypeDescriptor ptd=md.getThis().getType();
1848 if (ptd.isClass()&&!ptd.isArray())
1849 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1850 output.print(generateTemp(fm,fc.getThis(),lb));
1855 for(int i=0;i<fc.numArgs();i++) {
1856 Descriptor var=md.getParameter(i);
1857 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1858 if (objectparams.isParamPrim(paramtemp)) {
1859 TempDescriptor targ=fc.getArg(i);
1863 TypeDescriptor ptd=md.getParamType(i);
1864 if (ptd.isClass()&&!ptd.isArray())
1865 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1866 output.print(generateTemp(fm, targ,lb));
1870 output.println(");");
1871 output.println(" }");
1874 private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
1875 Set subclasses=typeutil.getSubClasses(thiscd);
1876 if (subclasses==null)
1878 for(Iterator classit=subclasses.iterator();classit.hasNext();) {
1879 ClassDescriptor cd=(ClassDescriptor)classit.next();
1880 Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
1881 for(Iterator matchit=possiblematches.iterator();matchit.hasNext();) {
1882 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
1883 if (md.matches(matchmd))
1890 private void generateFlatFieldNode(FlatMethod fm, LocalityBinding lb, FlatFieldNode ffn, PrintWriter output) {
1892 Integer status=locality.getNodePreTempInfo(lb,ffn).get(ffn.getSrc());
1893 if (status==LocalityAnalysis.GLOBAL) {
1894 String field=ffn.getField().getSafeSymbol();
1895 String src=generateTemp(fm, ffn.getSrc(),lb);
1896 String dst=generateTemp(fm, ffn.getDst(),lb);
1898 if (ffn.getField().getType().isPtr()) {
1900 //TODO: Uncomment this when we have runtime support
1901 //if (ffn.getSrc()==ffn.getDst()) {
1902 //output.println("{");
1903 //output.println("void * temp="+src+";");
1904 //output.println("if (temp&0x1) {");
1905 //output.println("temp=(void *) transRead(trans, (unsigned int) temp);");
1906 //output.println(src+"->"+field+"="+temp+";");
1907 //output.println("}");
1908 //output.println(dst+"=temp;");
1909 //output.println("}");
1911 output.println(dst+"="+ src +"->"+field+ ";");
1912 //output.println("if ("+dst+"&0x1) {");
1913 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
1914 //output.println(src+"->"+field+"="+src+"->"+field+";");
1915 //output.println("}");
1918 output.println(dst+"="+ src+"->"+field+";");
1920 } else if (status==LocalityAnalysis.LOCAL) {
1921 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1922 } else if (status==LocalityAnalysis.EITHER) {
1923 //Code is reading from a null pointer
1924 output.println("if ("+generateTemp(fm, ffn.getSrc(),lb)+") {");
1925 output.println("#ifndef RAW");
1926 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
1927 output.println("#endif");
1928 //This should throw a suitable null pointer error
1929 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1931 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
1933 output.println(generateTemp(fm, ffn.getDst(),lb)+"="+ generateTemp(fm,ffn.getSrc(),lb)+"->"+ ffn.getField().getSafeSymbol()+";");
1937 private void generateFlatSetFieldNode(FlatMethod fm, LocalityBinding lb, FlatSetFieldNode fsfn, PrintWriter output) {
1938 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
1939 throw new Error("Can't set array length");
1940 if (state.DSM && locality.getAtomic(lb).get(fsfn).intValue()>0) {
1941 Integer statussrc=locality.getNodePreTempInfo(lb,fsfn).get(fsfn.getSrc());
1942 Integer statusdst=locality.getNodeTempInfo(lb).get(fsfn).get(fsfn.getDst());
1943 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
1945 String src=generateTemp(fm,fsfn.getSrc(),lb);
1946 String dst=generateTemp(fm,fsfn.getDst(),lb);
1948 output.println("{");
1949 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
1951 if (statusdst.equals(LocalityAnalysis.GLOBAL)) {
1954 output.println("*((unsigned int *)&("+dst+"->___localcopy___))|=DIRTY;");
1956 output.println("*((unsigned int *)&("+glbdst+"->"+ fsfn.getField().getSafeSymbol()+"))=srcoid;");
1958 output.println(glbdst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1959 } else if (statusdst.equals(LocalityAnalysis.LOCAL)) {
1960 /** Check if we need to copy */
1961 output.println("if(!"+dst+"->"+localcopystr+") {");
1962 /* Link object into list */
1963 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
1964 output.println(revertptr+"=trans->revertlist;");
1965 if (GENERATEPRECISEGC)
1966 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
1968 output.println("COPY_OBJ("+dst+");");
1969 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
1970 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
1971 output.println("}");
1973 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
1975 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1976 } else if (statusdst.equals(LocalityAnalysis.EITHER)) {
1977 //writing to a null...bad
1978 output.println("if ("+dst+") {");
1979 output.println("#ifndef RAW");
1980 output.println("printf(\"BIG ERROR 2\\n\");exit(-1);}");
1981 output.println("#endif");
1983 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"=srcoid;");
1985 output.println(dst+"->"+ fsfn.getField().getSafeSymbol()+"="+ src+";");
1988 output.println("}");
1991 output.println(generateTemp(fm, fsfn.getDst(),lb)+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc(),lb)+";");
1995 private void generateFlatElementNode(FlatMethod fm, LocalityBinding lb, FlatElementNode fen, PrintWriter output) {
1996 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
1999 if (elementtype.isArray()||elementtype.isClass())
2002 type=elementtype.getSafeSymbol()+" ";
2004 if (fen.needsBoundsCheck()) {
2005 output.println("if ("+generateTemp(fm, fen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fen.getIndex(),lb)+" >= "+generateTemp(fm,fen.getSrc(),lb) + "->___length___)");
2006 output.println("failedboundschk();");
2009 Integer status=locality.getNodePreTempInfo(lb,fen).get(fen.getSrc());
2010 if (status==LocalityAnalysis.GLOBAL) {
2011 String dst=generateTemp(fm, fen.getDst(),lb);
2013 if (elementtype.isPtr()) {
2014 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2015 output.println(dst+"=(void *) transRead(trans, (unsigned int) "+dst+");");
2017 output.println(dst +"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2019 } else if (status==LocalityAnalysis.LOCAL) {
2020 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2021 } else if (status==LocalityAnalysis.EITHER) {
2022 //Code is reading from a null pointer
2023 output.println("if ("+generateTemp(fm, fen.getSrc(),lb)+") {");
2024 output.println("#ifndef RAW");
2025 output.println("printf(\"BIG ERROR\\n\");exit(-1);}");
2026 output.println("#endif");
2027 //This should throw a suitable null pointer error
2028 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2030 throw new Error("Read from non-global/non-local in:"+lb.getExplanation());
2032 output.println(generateTemp(fm, fen.getDst(),lb)+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex(),lb)+"];");
2036 private void generateFlatSetElementNode(FlatMethod fm, LocalityBinding lb, FlatSetElementNode fsen, PrintWriter output) {
2037 //TODO: need dynamic check to make sure this assignment is actually legal
2038 //Because Object[] could actually be something more specific...ie. Integer[]
2040 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2043 if (elementtype.isArray()||elementtype.isClass())
2046 type=elementtype.getSafeSymbol()+" ";
2049 if (fsen.needsBoundsCheck()) {
2050 output.println("if ("+generateTemp(fm, fsen.getIndex(),lb)+"< 0 || "+generateTemp(fm, fsen.getIndex(),lb)+" >= "+generateTemp(fm,fsen.getDst(),lb) + "->___length___)");
2051 output.println("failedboundschk();");
2054 if (state.DSM && locality.getAtomic(lb).get(fsen).intValue()>0) {
2055 Integer statussrc=locality.getNodePreTempInfo(lb,fsen).get(fsen.getSrc());
2056 Integer statusdst=locality.getNodePreTempInfo(lb,fsen).get(fsen.getDst());
2057 boolean srcglobal=statussrc==LocalityAnalysis.GLOBAL;
2058 boolean dstglobal=statusdst==LocalityAnalysis.GLOBAL;
2059 boolean dstlocal=statusdst==LocalityAnalysis.LOCAL;
2062 output.println("*((unsigned int *)&("+generateTemp(fm,fsen.getDst(),lb)+"->___localcopy___))|=DIRTY;");
2063 } else if (dstlocal) {
2064 /** Check if we need to copy */
2065 String dst=generateTemp(fm, fsen.getDst(),lb);
2066 output.println("if(!"+dst+"->"+localcopystr+") {");
2067 /* Link object into list */
2068 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2069 output.println(revertptr+"=trans->revertlist;");
2070 if (GENERATEPRECISEGC)
2071 output.println("COPY_OBJ((struct garbagelist *)&"+localsprefix+",(struct ___Object___ *)"+dst+");");
2073 output.println("COPY_OBJ("+dst+");");
2074 output.println(dst+"->"+nextobjstr+"="+revertptr+";");
2075 output.println("trans->revertlist=(struct ___Object___ *)"+dst+";");
2076 output.println("}");
2077 } else throw new Error("Unknown array type");
2079 output.println("{");
2080 String src=generateTemp(fm, fsen.getSrc(), lb);
2081 output.println("int srcoid=(int)"+src+"->"+oidstr+";");
2082 output.println("((int*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]=srcoid;");
2083 output.println("}");
2085 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2088 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst(),lb)+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex(),lb)+"]="+generateTemp(fm,fsen.getSrc(),lb)+";");
2091 private void generateFlatNew(FlatMethod fm, LocalityBinding lb, FlatNew fn, PrintWriter output) {
2092 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2093 //Stash pointer in case of GC
2094 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2095 output.println(revertptr+"=trans->revertlist;");
2097 if (fn.getType().isArray()) {
2098 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2099 if (fn.isGlobal()) {
2100 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarrayglobal(trans, "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2101 } else if (GENERATEPRECISEGC) {
2102 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray(&"+localsprefix+", "+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2104 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize(),lb)+");");
2107 if (fn.isGlobal()) {
2108 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_newglobal(trans, "+fn.getType().getClassDesc().getId()+");");
2109 } else if (GENERATEPRECISEGC) {
2110 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new(&"+localsprefix+", "+fn.getType().getClassDesc().getId()+");");
2112 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2115 if (state.DSM && locality.getAtomic(lb).get(fn).intValue()>0&&!fn.isGlobal()) {
2116 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2117 output.println("trans->revertlist="+revertptr+";");
2121 private void generateFlatTagDeclaration(FlatMethod fm, LocalityBinding lb, FlatTagDeclaration fn, PrintWriter output) {
2122 if (GENERATEPRECISEGC) {
2123 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag(&"+localsprefix+", "+state.getTagId(fn.getType())+");");
2125 output.println(generateTemp(fm,fn.getDst(),lb)+"=allocate_tag("+state.getTagId(fn.getType())+");");
2129 private void generateFlatOpNode(FlatMethod fm, LocalityBinding lb, FlatOpNode fon, PrintWriter output) {
2130 if (fon.getRight()!=null) {
2131 if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2132 if (fon.getLeft().getType().isLong())
2133 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2135 output.println(generateTemp(fm, fon.getDest(),lb)+" = ((unsigned int)"+generateTemp(fm, fon.getLeft(),lb)+")>>"+generateTemp(fm,fon.getRight(),lb)+";");
2138 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+fon.getOp().toString()+generateTemp(fm,fon.getRight(),lb)+";");
2139 } else if (fon.getOp().getOp()==Operation.ASSIGN)
2140 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2141 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2142 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+";");
2143 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2144 output.println(generateTemp(fm, fon.getDest(),lb)+" = -"+generateTemp(fm, fon.getLeft(),lb)+";");
2145 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2146 output.println(generateTemp(fm, fon.getDest(),lb)+" = !"+generateTemp(fm, fon.getLeft(),lb)+";");
2147 else if (fon.getOp().getOp()==Operation.COMP)
2148 output.println(generateTemp(fm, fon.getDest(),lb)+" = ~"+generateTemp(fm, fon.getLeft(),lb)+";");
2149 else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2150 output.println(generateTemp(fm, fon.getDest(),lb)+" = "+generateTemp(fm, fon.getLeft(),lb)+"->fses==NULL;");
2152 output.println(generateTemp(fm, fon.getDest(),lb)+fon.getOp().toString()+generateTemp(fm, fon.getLeft(),lb)+";");
2155 private void generateFlatCastNode(FlatMethod fm, LocalityBinding lb, FlatCastNode fcn, PrintWriter output) {
2156 /* TODO: Do type check here */
2157 if (fcn.getType().isArray()) {
2159 } else if (fcn.getType().isClass())
2160 output.println(generateTemp(fm,fcn.getDst(),lb)+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc(),lb)+";");
2162 output.println(generateTemp(fm,fcn.getDst(),lb)+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc(),lb)+";");
2165 private void generateFlatLiteralNode(FlatMethod fm, LocalityBinding lb, FlatLiteralNode fln, PrintWriter output) {
2166 if (fln.getValue()==null)
2167 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2168 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2169 if (GENERATEPRECISEGC) {
2170 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2171 //Stash pointer in case of GC
2172 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2173 output.println(revertptr+"=trans->revertlist;");
2175 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(&"+localsprefix+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2176 if (state.DSM && locality.getAtomic(lb).get(fln).intValue()>0) {
2177 //Stash pointer in case of GC
2178 String revertptr=generateTemp(fm, reverttable.get(lb),lb);
2179 output.println("trans->revertlist="+revertptr+";");
2182 output.println(generateTemp(fm, fln.getDst(),lb)+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2184 } else if (fln.getType().isBoolean()) {
2185 if (((Boolean)fln.getValue()).booleanValue())
2186 output.println(generateTemp(fm, fln.getDst(),lb)+"=1;");
2188 output.println(generateTemp(fm, fln.getDst(),lb)+"=0;");
2189 } else if (fln.getType().isChar()) {
2190 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2191 output.println(generateTemp(fm, fln.getDst(),lb)+"='"+st+"';");
2192 } else if (fln.getType().isLong()) {
2193 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+"LL;");
2195 output.println(generateTemp(fm, fln.getDst(),lb)+"="+fln.getValue()+";");
2198 protected void generateFlatReturnNode(FlatMethod fm, LocalityBinding lb, FlatReturnNode frn, PrintWriter output) {
2199 if (frn.getReturnTemp()!=null) {
2200 if (frn.getReturnTemp().getType().isPtr())
2201 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2203 output.println("return "+generateTemp(fm, frn.getReturnTemp(), lb)+";");
2205 output.println("return;");
2209 protected void generateFlatCondBranch(FlatMethod fm, LocalityBinding lb, FlatCondBranch fcb, String label, PrintWriter output) {
2210 output.println("if (!"+generateTemp(fm, fcb.getTest(),lb)+") goto "+label+";");
2213 /** This method generates header information for the method or
2214 * task referenced by the Descriptor des. */
2216 private void generateHeader(FlatMethod fm, LocalityBinding lb, Descriptor des, PrintWriter output) {
2218 ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:des);
2219 MethodDescriptor md=null;
2220 TaskDescriptor task=null;
2221 if (des instanceof MethodDescriptor)
2222 md=(MethodDescriptor) des;
2224 task=(TaskDescriptor) des;
2226 ClassDescriptor cn=md!=null?md.getClassDesc():null;
2228 if (md!=null&&md.getReturnType()!=null) {
2229 if (md.getReturnType().isClass()||md.getReturnType().isArray())
2230 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2232 output.print(md.getReturnType().getSafeSymbol()+" ");
2234 //catch the constructor case
2235 output.print("void ");
2238 output.print(cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2240 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2242 output.print(task.getSafeSymbol()+"(");
2244 boolean printcomma=false;
2245 if (GENERATEPRECISEGC) {
2248 output.print("struct "+cn.getSafeSymbol()+lb.getSignature()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2250 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2252 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2256 if (state.DSM&&lb.isAtomic()) {
2259 output.print("transrecord_t * trans");
2265 for(int i=0;i<objectparams.numPrimitives();i++) {
2266 TempDescriptor temp=objectparams.getPrimitive(i);
2270 if (temp.getType().isClass()||temp.getType().isArray())
2271 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2273 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2275 output.println(") {");
2276 } else if (!GENERATEPRECISEGC) {
2277 /* Imprecise Task */
2278 output.println("void * parameterarray[]) {");
2279 /* Unpack variables */
2280 for(int i=0;i<objectparams.numPrimitives();i++) {
2281 TempDescriptor temp=objectparams.getPrimitive(i);
2282 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2284 for(int i=0;i<fm.numTags();i++) {
2285 TempDescriptor temp=fm.getTag(i);
2286 int offset=i+objectparams.numPrimitives();
2287 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2290 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2291 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2292 } else output.println(") {");
2295 public void generateFlatFlagActionNode(FlatMethod fm, LocalityBinding lb, FlatFlagActionNode ffan, PrintWriter output) {
2296 output.println("/* FlatFlagActionNode */");
2299 /* Process tag changes */
2300 Relation tagsettable=new Relation();
2301 Relation tagcleartable=new Relation();
2303 Iterator tagsit=ffan.getTempTagPairs();
2304 while (tagsit.hasNext()) {
2305 TempTagPair ttp=(TempTagPair) tagsit.next();
2306 TempDescriptor objtmp=ttp.getTemp();
2307 TagDescriptor tag=ttp.getTag();
2308 TempDescriptor tagtmp=ttp.getTagTemp();
2309 boolean tagstatus=ffan.getTagChange(ttp);
2311 tagsettable.put(objtmp, tagtmp);
2313 tagcleartable.put(objtmp, tagtmp);
2318 Hashtable flagandtable=new Hashtable();
2319 Hashtable flagortable=new Hashtable();
2321 /* Process flag changes */
2322 Iterator flagsit=ffan.getTempFlagPairs();
2323 while(flagsit.hasNext()) {
2324 TempFlagPair tfp=(TempFlagPair)flagsit.next();
2325 TempDescriptor temp=tfp.getTemp();
2326 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2327 FlagDescriptor flag=tfp.getFlag();
2329 //Newly allocate objects that don't set any flags case
2330 if (flagortable.containsKey(temp)) {
2334 flagortable.put(temp,new Integer(mask));
2336 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2337 boolean flagstatus=ffan.getFlagChange(tfp);
2340 if (flagortable.containsKey(temp)) {
2341 mask=((Integer)flagortable.get(temp)).intValue();
2344 flagortable.put(temp,new Integer(mask));
2346 int mask=0xFFFFFFFF;
2347 if (flagandtable.containsKey(temp)) {
2348 mask=((Integer)flagandtable.get(temp)).intValue();
2350 mask&=(0xFFFFFFFF^flagid);
2351 flagandtable.put(temp,new Integer(mask));
2357 HashSet flagtagset=new HashSet();
2358 flagtagset.addAll(flagortable.keySet());
2359 flagtagset.addAll(flagandtable.keySet());
2360 flagtagset.addAll(tagsettable.keySet());
2361 flagtagset.addAll(tagcleartable.keySet());
2363 Iterator ftit=flagtagset.iterator();
2364 while(ftit.hasNext()) {
2365 TempDescriptor temp=(TempDescriptor)ftit.next();
2368 Set tagtmps=tagcleartable.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("tagclear(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2376 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2380 tagtmps=tagsettable.get(temp);
2381 if (tagtmps!=null) {
2382 Iterator tagit=tagtmps.iterator();
2383 while(tagit.hasNext()) {
2384 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2385 if (GENERATEPRECISEGC)
2386 output.println("tagset(&"+localsprefix+", (struct ___Object___ *)"+generateTemp(fm, temp,lb)+", "+generateTemp(fm,tagtmp,lb)+");");
2388 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp, lb)+", "+generateTemp(fm,tagtmp, lb)+");");
2393 int andmask=0xFFFFFFF;
2395 if (flagortable.containsKey(temp))
2396 ormask=((Integer)flagortable.get(temp)).intValue();
2397 if (flagandtable.containsKey(temp))
2398 andmask=((Integer)flagandtable.get(temp)).intValue();
2399 generateFlagOrAnd(ffan, fm, lb, temp, output, ormask, andmask);
2400 generateObjectDistribute(ffan, fm, lb, temp, output);
2404 protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp,
2405 PrintWriter output, int ormask, int andmask) {
2406 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2407 output.println("flagorandinit("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2409 output.println("flagorand("+generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2413 protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp, PrintWriter output) {
2414 output.println("enqueueObject("+generateTemp(fm, temp, lb)+");");
2417 void generateOptionalHeader(PrintWriter headers) {
2420 headers.println("#include \"task.h\"\n\n");
2421 headers.println("#ifndef _OPTIONAL_STRUCT_");
2422 headers.println("#define _OPTIONAL_STRUCT_");
2424 //STRUCT PREDICATEMEMBER
2425 headers.println("struct predicatemember{");
2426 headers.println("int type;");
2427 headers.println("int numdnfterms;");
2428 headers.println("int * flags;");
2429 headers.println("int numtags;");
2430 headers.println("int * tags;\n};\n\n");
2432 //STRUCT OPTIONALTASKDESCRIPTOR
2433 headers.println("struct optionaltaskdescriptor{");
2434 headers.println("struct taskdescriptor * task;");
2435 headers.println("int index;");
2436 headers.println("int numenterflags;");
2437 headers.println("int * enterflags;");
2438 headers.println("int numpredicatemembers;");
2439 headers.println("struct predicatemember ** predicatememberarray;");
2440 headers.println("};\n\n");
2442 //STRUCT TASKFAILURE
2443 headers.println("struct taskfailure {");
2444 headers.println("struct taskdescriptor * task;");
2445 headers.println("int index;");
2446 headers.println("int numoptionaltaskdescriptors;");
2447 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2449 //STRUCT FSANALYSISWRAPPER
2450 headers.println("struct fsanalysiswrapper{");
2451 headers.println("int flags;");
2452 headers.println("int numtags;");
2453 headers.println("int * tags;");
2454 headers.println("int numtaskfailures;");
2455 headers.println("struct taskfailure ** taskfailurearray;");
2456 headers.println("int numoptionaltaskdescriptors;");
2457 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2459 //STRUCT CLASSANALYSISWRAPPER
2460 headers.println("struct classanalysiswrapper{");
2461 headers.println("int type;");
2462 headers.println("int numotd;");
2463 headers.println("struct optionaltaskdescriptor ** otdarray;");
2464 headers.println("int numfsanalysiswrappers;");
2465 headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
2467 headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
2469 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
2470 while(taskit.hasNext()) {
2471 TaskDescriptor td=(TaskDescriptor)taskit.next();
2472 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
2477 //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
2478 int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
2479 int predicateindex = 0;
2480 //iterate through the classes concerned by the predicate
2481 Set c_vard = predicate.vardescriptors;
2482 Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
2485 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext();){
2486 VarDescriptor vard = (VarDescriptor)vard_it.next();
2487 TypeDescriptor typed = vard.getType();
2489 //generate for flags
2490 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
2491 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2493 if (fen_hashset!=null){
2494 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext();){
2495 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
2497 DNFFlag dflag=fen.getDNF();
2498 numberterms+=dflag.size();
2500 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
2502 for(int j=0;j<dflag.size();j++) {
2504 output.println(",");
2505 Vector term=dflag.get(j);
2508 for(int k=0;k<term.size();k++) {
2509 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
2510 FlagDescriptor fd=dfa.getFlag();
2511 boolean negated=dfa.getNegated();
2512 int flagid=1<<((Integer)flags.get(fd)).intValue();
2517 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
2522 output.println("};\n");
2525 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
2526 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2529 for(int j=0;j<tagel.numTags();j++) {
2531 output.println(",");
2532 TempDescriptor tmp=tagel.getTemp(j);
2533 if (!slotnumber.containsKey(tmp)) {
2534 Integer slotint=new Integer(current_slot++);
2535 slotnumber.put(tmp,slotint);
2537 int slot=slotnumber.get(tmp).intValue();
2538 output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
2540 numtags = tagel.numTags();
2542 output.println("};");
2544 //store the result into a predicatemember struct
2545 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2546 output.println("/*type*/"+typed.getClassDesc().getId()+",");
2547 output.println("/* number of dnf terms */"+numberterms+",");
2548 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2549 output.println("/* number of tag */"+numtags+",");
2550 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2551 output.println("};\n");
2556 //generate an array that stores the entire predicate
2557 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2558 for( int j = 0; j<predicateindex; j++){
2559 if( j != predicateindex-1)output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2560 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2562 output.println("};\n");
2563 return predicateindex;
2567 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
2568 generateOptionalHeader(headers);
2570 output.println("#include \"optionalstruct.h\"\n\n");
2571 output.println("#include \"stdlib.h\"\n");
2573 HashSet processedcd = new HashSet();
2575 Enumeration e = safeexecution.keys();
2576 while (e.hasMoreElements()) {
2579 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
2580 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp);//will be used several times
2582 //Generate the struct of optionals
2583 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2584 numotd = c_otd.size();
2585 if(maxotd<numotd) maxotd = numotd;
2586 if( !c_otd.isEmpty() ){
2587 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2588 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2590 //generate the int arrays for the predicate
2591 Predicate predicate = otd.predicate;
2592 int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
2593 TreeSet<Integer> fsset=new TreeSet<Integer>();
2594 //iterate through possible FSes corresponding to
2595 //the state when entering
2597 for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext();){
2598 FlagState fs = (FlagState)fses.next();
2600 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2601 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2602 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2605 fsset.add(new Integer(flagid));
2606 //tag information not needed because tag
2607 //changes are not tolerated.
2610 output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2611 boolean needcomma=false;
2612 for(Iterator<Integer> it=fsset.iterator();it.hasNext();) {
2615 output.println(it.next());
2618 output.println("};\n");
2621 //generate optionaltaskdescriptor that actually
2622 //includes exit fses, predicate and the task
2624 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2625 output.println("&task_"+otd.td.getSafeSymbol()+",");
2626 output.println("/*index*/"+otd.getIndex()+",");
2627 output.println("/*number of enter flags*/"+fsset.size()+",");
2628 output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2629 output.println("/*number of members */"+predicateindex+",");
2630 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2631 output.println("};\n");
2635 // if there are no optionals, there is no need to build the rest of the struct
2637 output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
2638 c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2639 if( !c_otd.isEmpty() ){
2640 boolean needcomma=false;
2641 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext();){
2642 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2644 output.println(",");
2646 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2649 output.println("};\n");
2651 //get all the possible flagstates reachable by an object
2652 Hashtable hashtbtemp = safeexecution.get(cdtemp);
2654 TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
2655 fsts.addAll(hashtbtemp.keySet());
2656 for(Iterator fsit=fsts.iterator();fsit.hasNext();) {
2657 FlagState fs = (FlagState)fsit.next();
2660 //get the set of OptionalTaskDescriptors corresponding
2661 HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
2662 //iterate through the OptionalTaskDescriptors and
2663 //store the pointers to the optionals struct (see on
2664 //top) into an array
2666 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
2667 for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext();){
2668 OptionalTaskDescriptor mm = mos.next();
2670 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
2672 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2675 output.println("};\n");
2677 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
2680 for(Iterator flags = fs.getFlags(); flags.hasNext();){
2681 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2682 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2686 //process tag information
2689 boolean first = true;
2690 Enumeration tag_enum = fs.getTags();
2691 output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2692 while(tag_enum.hasMoreElements()){
2694 TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
2698 output.println(", ");
2699 output.println("/*tagid*/"+state.getTagId(tagd));
2701 output.println("};");
2703 Set<TaskIndex> tiset=sa.getTaskIndex(fs);
2704 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2705 TaskIndex ti=itti.next();
2709 Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
2711 output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
2712 boolean needcomma=false;
2713 for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator();otdit.hasNext();) {
2714 OptionalTaskDescriptor otd=otdit.next();
2718 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2720 output.println("};");
2722 output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
2723 output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
2724 output.print(ti.getIndex()+", ");
2725 output.print(otdset.size()+", ");
2726 output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
2727 output.println("};");
2730 tiset=sa.getTaskIndex(fs);
2731 boolean needcomma=false;
2733 output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2734 for(Iterator<TaskIndex> itti=tiset.iterator();itti.hasNext();) {
2735 TaskIndex ti=itti.next();
2736 if (ti.isRuntime()) {
2743 output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
2745 output.println("};\n");
2747 //Store the result in fsanalysiswrapper
2749 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
2750 output.println("/*flag*/"+flagid+",");
2751 output.println("/* number of tags*/"+tagcounter+",");
2752 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2753 output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
2754 output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2755 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
2756 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
2757 output.println("};\n");
2761 //Build the array of fsanalysiswrappers
2762 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
2763 boolean needcomma=false;
2764 for(int i = 0; i<fscounter; i++){
2765 if (needcomma) output.print(",");
2766 output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
2769 output.println("};");
2771 //Build the classanalysiswrapper referring to the previous array
2772 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
2773 output.println("/*type*/"+cdtemp.getId()+",");
2774 output.println("/*numotd*/"+numotd+",");
2775 output.println("otdarray"+cdtemp.getSafeSymbol()+",");
2776 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
2777 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
2778 processedcd.add(cdtemp);
2781 //build an array containing every classes for which code has been build
2782 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
2783 for(int i=0;i<state.numClasses();i++) {
2784 ClassDescriptor cn=cdarray[i];
2787 if (processedcd.contains(cn))
2788 output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
2790 output.print("NULL");
2792 output.println("};");
2794 output.println("#define MAXOTD "+maxotd);
2795 headers.println("#endif");
2798 public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
2799 Relation r=new Relation();
2800 for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator();otdit.hasNext();) {
2801 OptionalTaskDescriptor otd=otdit.next();
2802 TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
2806 LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
2807 for(Iterator it=r.keySet().iterator();it.hasNext();) {
2808 Set s=r.get(it.next());
2809 for(Iterator it2=s.iterator();it2.hasNext();) {
2810 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();
2818 protected void outputTransCode(PrintWriter output) {