2 import IR.Tree.FlagExpressionNode;
3 import IR.Tree.DNFFlag;
4 import IR.Tree.DNFFlagAtom;
9 public class BuildCode {
12 Hashtable paramstable;
17 String localsprefix="___locals___";
18 String paramsprefix="___params___";
19 public static boolean GENERATEPRECISEGC=false;
20 public static String PREFIX="";
21 public static String arraytype="ArrayObject";
24 private int maxtaskparams=0;
25 ClassDescriptor[] cdarray;
26 TypeDescriptor[] arraytable;
28 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil) {
30 this.temptovar=temptovar;
31 paramstable=new Hashtable();
32 tempstable=new Hashtable();
33 fieldorder=new Hashtable();
34 flagorder=new Hashtable();
35 this.typeutil=typeutil;
36 virtualcalls=new Virtual(state);
39 /** The buildCode method outputs C code for all the methods. The Flat
40 * versions of the methods must already be generated and stored in
41 * the State object. */
43 public void buildCode() {
44 /* Create output streams to write to */
45 PrintWriter outclassdefs=null;
46 PrintWriter outstructs=null;
47 PrintWriter outrepairstructs=null;
48 PrintWriter outmethodheader=null;
49 PrintWriter outmethod=null;
50 PrintWriter outvirtual=null;
51 PrintWriter outtask=null;
52 PrintWriter outtaskdefs=null;
55 OutputStream str=new FileOutputStream(PREFIX+"structdefs.h");
56 outstructs=new java.io.PrintWriter(str, true);
57 str=new FileOutputStream(PREFIX+"methodheaders.h");
58 outmethodheader=new java.io.PrintWriter(str, true);
59 str=new FileOutputStream(PREFIX+"classdefs.h");
60 outclassdefs=new java.io.PrintWriter(str, true);
61 str=new FileOutputStream(PREFIX+"methods.c");
62 outmethod=new java.io.PrintWriter(str, true);
63 str=new FileOutputStream(PREFIX+"virtualtable.h");
64 outvirtual=new java.io.PrintWriter(str, true);
66 str=new FileOutputStream(PREFIX+"task.h");
67 outtask=new java.io.PrintWriter(str, true);
68 str=new FileOutputStream(PREFIX+"taskdefs.c");
69 outtaskdefs=new java.io.PrintWriter(str, true);
71 if (state.structfile!=null) {
72 str=new FileOutputStream(PREFIX+state.structfile+".struct");
73 outrepairstructs=new java.io.PrintWriter(str, true);
75 } catch (Exception e) {
80 /* Build the virtual dispatch tables */
81 buildVirtualTables(outvirtual);
86 outmethodheader.println("#ifndef METHODHEADERS_H");
87 outmethodheader.println("#define METHODHEADERS_H");
88 outmethodheader.println("#include \"structdefs.h\"");
90 outstructs.println("#ifndef STRUCTDEFS_H");
91 outstructs.println("#define STRUCTDEFS_H");
92 outstructs.println("#include \"classdefs.h\"");
96 /* Output types for short array and string */
97 outstructs.println("#define STRINGARRAYTYPE "+
98 (state.getArrayNumber(
99 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
101 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
102 outstructs.println("#define CHARARRAYTYPE "+
103 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
105 outstructs.println("#define BYTEARRAYTYPE "+
106 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
108 outstructs.println("#define BYTEARRAYARRAYTYPE "+
109 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
111 outstructs.println("#define NUMCLASSES "+state.numClasses());
113 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
115 // Output the C class declarations
116 // These could mutually reference each other
118 outclassdefs.println("#include <pthread.h>");
120 outclassdefs.println("struct "+arraytype+";");
122 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
123 while(it.hasNext()) {
124 ClassDescriptor cn=(ClassDescriptor)it.next();
125 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
127 outclassdefs.println("");
129 //Print out definition for array type
130 outclassdefs.println("struct "+arraytype+" {");
131 outclassdefs.println(" int type;");
133 outclassdefs.println(" pthread_t tid;");
134 outclassdefs.println(" void * lockentry;");
135 outclassdefs.println(" int lockcount;");
139 outclassdefs.println(" int flag;");
140 outclassdefs.println(" void * flagptr;");
142 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs);
143 outclassdefs.println(" int ___length___;");
144 outclassdefs.println("};\n");
147 //Print out definitions for task types
148 outtask.println("struct parameterdescriptor {");
149 outtask.println("int type;");
150 outtask.println("int numberterms;");
151 outtask.println("int *intarray;");
152 outtask.println("void * queue;");
153 outtask.println("};");
155 outtask.println("struct taskdescriptor {");
156 outtask.println("void * taskptr;");
157 outtask.println("int numParameters;");
158 outtask.println("struct parameterdescriptor **descriptorarray;");
159 outtask.println("char * name;");
160 outtask.println("};");
161 outtask.println("extern struct taskdescriptor * taskarray[];");
162 outtask.println("extern numtasks;");
166 // Output function prototypes and structures for parameters
167 it=state.getClassSymbolTable().getDescriptorsIterator();
168 while(it.hasNext()) {
169 ClassDescriptor cn=(ClassDescriptor)it.next();
170 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader);
175 /* Map flags to integers */
176 it=state.getClassSymbolTable().getDescriptorsIterator();
177 while(it.hasNext()) {
178 ClassDescriptor cn=(ClassDescriptor)it.next();
182 generateTaskStructs(outstructs, outmethodheader);
185 outmethodheader.println("#endif");
187 outmethodheader.close();
189 /* Build the actual methods */
190 outmethod.println("#include \"methodheaders.h\"");
191 outmethod.println("#include \"virtualtable.h\"");
192 outmethod.println("#include <runtime.h>");
194 outmethod.println("#include <thread.h>");
195 if (state.main!=null) {
196 outmethod.println("#include <string.h>");
199 if (state.CONSCHECK) {
200 outmethod.println("#include \"checkers.h\"");
202 outclassdefs.println("extern int classsize[];");
203 outclassdefs.println("extern int hasflags[];");
204 outclassdefs.println("extern int * pointerarray[];");
205 outclassdefs.println("extern int supertypes[];");
207 //Store the sizes of classes & array elements
208 generateSizeArray(outmethod);
210 //Store table of supertypes
211 generateSuperTypeTable(outmethod);
213 //Store the layout of classes
214 generateLayoutStructs(outmethod);
216 /* Generate code for methods */
217 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
218 while(classit.hasNext()) {
219 ClassDescriptor cn=(ClassDescriptor)classit.next();
220 Iterator methodit=cn.getMethods();
221 while(methodit.hasNext()) {
222 /* Classify parameters */
223 MethodDescriptor md=(MethodDescriptor)methodit.next();
224 FlatMethod fm=state.getMethodFlat(md);
225 if (!md.getModifiers().isNative())
226 generateFlatMethod(fm,outmethod);
231 /* Compile task based program */
232 outtaskdefs.println("#include \"task.h\"");
233 outtaskdefs.println("#include \"methodheaders.h\"");
234 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
235 while(taskit.hasNext()) {
236 TaskDescriptor td=(TaskDescriptor)taskit.next();
237 FlatMethod fm=state.getMethodFlat(td);
238 generateFlatMethod(fm, outmethod);
239 generateTaskDescriptor(outtaskdefs, td);
243 //Output task descriptors
244 taskit=state.getTaskSymbolTable().getDescriptorsIterator();
245 outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
247 while(taskit.hasNext()) {
248 TaskDescriptor td=(TaskDescriptor)taskit.next();
252 outtaskdefs.println(",");
253 outtaskdefs.print("&task_"+td.getSafeSymbol());
255 outtaskdefs.println("};");
258 outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
260 } else if (state.main!=null) {
261 /* Generate main method */
262 outmethod.println("int main(int argc, const char *argv[]) {");
263 outmethod.println(" int i;");
264 if (GENERATEPRECISEGC) {
265 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
267 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
270 outmethod.println("initializethreads();");
272 outmethod.println(" for(i=1;i<argc;i++) {");
273 outmethod.println(" int length=strlen(argv[i]);");
274 if (GENERATEPRECISEGC) {
275 outmethod.println(" struct ___String___ *newstring=NewString(NULL, argv[i], length);");
277 outmethod.println(" struct ___String___ *newstring=NewString(argv[i], length);");
279 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
280 outmethod.println(" }");
283 ClassDescriptor cd=typeutil.getClass(state.main);
284 Set mainset=cd.getMethodTable().getSet("main");
285 for(Iterator mainit=mainset.iterator();mainit.hasNext();) {
286 MethodDescriptor md=(MethodDescriptor)mainit.next();
287 if (md.numParameters()!=1)
289 if (md.getParameter(0).getType().getArrayCount()!=1)
291 if (!md.getParameter(0).getType().getSymbol().equals("String"))
294 if (!md.getModifiers().isStatic())
295 throw new Error("Error: Non static main");
296 outmethod.println(" {");
297 if (GENERATEPRECISEGC) {
298 outmethod.print(" struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
299 outmethod.println("1, NULL,"+"stringarray};");
300 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
302 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
303 outmethod.println(" }");
307 outmethod.println("pthread_mutex_lock(&gclistlock);");
308 outmethod.println("threadcount--;");
309 outmethod.println("pthread_cond_signal(&gccond);");
310 outmethod.println("pthread_mutex_unlock(&gclistlock);");
311 outmethod.println("pthread_exit(NULL);");
313 outmethod.println("}");
316 outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
319 /* Output structure definitions for repair tool */
320 if (state.structfile!=null) {
321 buildRepairStructs(outrepairstructs);
322 outrepairstructs.close();
324 outstructs.println("#endif");
330 private int maxcount=0;
332 private void buildRepairStructs(PrintWriter outrepairstructs) {
333 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
334 while(classit.hasNext()) {
335 ClassDescriptor cn=(ClassDescriptor)classit.next();
336 outrepairstructs.println("structure "+cn.getSymbol()+" {");
337 outrepairstructs.println(" int __type__;");
339 outrepairstructs.println(" int __flag__;");
340 outrepairstructs.println(" int __flagptr__;");
342 printRepairStruct(cn, outrepairstructs);
343 outrepairstructs.println("}\n");
346 for(int i=0;i<state.numArrays();i++) {
347 TypeDescriptor tdarray=arraytable[i];
348 TypeDescriptor tdelement=tdarray.dereference();
349 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
350 outrepairstructs.println(" int __type__;");
351 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
352 outrepairstructs.println(" int length;");
354 // Need to add support to repair tool for this
355 if (tdelement.isClass()||tdelement.isArray())
356 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" * elem[this.length];");
358 outrepairstructs.println(" "+tdelement.getRepairSymbol()+" elem[this.length];");
360 outrepairstructs.println("}\n");
365 private void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
366 ClassDescriptor sp=cn.getSuperDesc();
368 printRepairStruct(sp, output);
370 Vector fields=(Vector)fieldorder.get(cn);
372 for(int i=0;i<fields.size();i++) {
373 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
374 if (fd.getType().isArray()) {
375 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
376 } else if (fd.getType().isClass())
377 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
378 else if (fd.getType().isFloat())
379 output.println(" int "+fd.getSymbol()+"; /* really float */");
381 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
385 /** This method outputs TaskDescriptor information */
386 void generateTaskDescriptor(PrintWriter output, TaskDescriptor task) {
387 for (int i=0;i<task.numParameters();i++) {
388 VarDescriptor param_var=task.getParameter(i);
389 TypeDescriptor param_type=task.getParamType(i);
390 FlagExpressionNode param_flag=task.getFlag(param_var);
391 DNFFlag dflag=param_flag.getDNF();
393 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
395 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
396 for(int j=0;j<dflag.size();j++) {
399 Vector term=dflag.get(j);
402 for(int k=0;k<term.size();k++) {
403 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
404 FlagDescriptor fd=dfa.getFlag();
405 boolean negated=dfa.getNegated();
406 int flagid=1<<((Integer)flags.get(fd)).intValue();
411 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
413 output.println("};");
415 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
416 output.println("/* type */"+param_type.getClassDesc().getId()+",");
417 output.println("/* number of DNF terms */"+dflag.size()+",");
418 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
420 output.println("};");
424 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
425 for (int i=0;i<task.numParameters();i++) {
428 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
430 output.println("};");
432 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
433 output.println("&"+task.getSafeSymbol()+",");
434 output.println("/* number of parameters */" +task.numParameters() + ",");
435 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
436 output.println("\""+task.getSymbol()+"\"");
437 output.println("};");
441 /** The buildVirtualTables method outputs the virtual dispatch
442 * tables for methods. */
444 private void buildVirtualTables(PrintWriter outvirtual) {
445 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
446 while(classit.hasNext()) {
447 ClassDescriptor cd=(ClassDescriptor)classit.next();
448 if (virtualcalls.getMethodCount(cd)>maxcount)
449 maxcount=virtualcalls.getMethodCount(cd);
451 MethodDescriptor[][] virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
453 /* Fill in virtual table */
454 classit=state.getClassSymbolTable().getDescriptorsIterator();
455 while(classit.hasNext()) {
456 ClassDescriptor cd=(ClassDescriptor)classit.next();
457 fillinRow(cd, virtualtable, cd.getId());
460 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
461 Iterator arrayit=state.getArrayIterator();
462 while(arrayit.hasNext()) {
463 TypeDescriptor td=(TypeDescriptor)arrayit.next();
464 int id=state.getArrayNumber(td);
465 fillinRow(objectcd, virtualtable, id+state.numClasses());
468 outvirtual.print("void * virtualtable[]={");
469 boolean needcomma=false;
470 for(int i=0;i<state.numClasses()+state.numArrays();i++) {
471 for(int j=0;j<maxcount;j++) {
473 outvirtual.print(", ");
474 if (virtualtable[i][j]!=null) {
475 MethodDescriptor md=virtualtable[i][j];
476 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
478 outvirtual.print("0");
482 outvirtual.println("");
484 outvirtual.println("};");
488 private void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
489 /* Get inherited methods */
490 if (cd.getSuperDesc()!=null)
491 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
492 /* Override them with our methods */
493 for(Iterator it=cd.getMethods();it.hasNext();) {
494 MethodDescriptor md=(MethodDescriptor)it.next();
495 if (md.isStatic()||md.getReturnType()==null)
497 int methodnum=virtualcalls.getMethodNumber(md);
498 virtualtable[rownum][methodnum]=md;
502 /** Generate array that contains the sizes of class objects. The
503 * object allocation functions in the runtime use this
506 private void generateSizeArray(PrintWriter outclassdefs) {
507 outclassdefs.print("int classsize[]={");
508 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
509 cdarray=new ClassDescriptor[state.numClasses()];
510 while(it.hasNext()) {
511 ClassDescriptor cd=(ClassDescriptor)it.next();
512 cdarray[cd.getId()]=cd;
514 boolean needcomma=false;
515 for(int i=0;i<state.numClasses();i++) {
517 outclassdefs.print(", ");
518 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
522 arraytable=new TypeDescriptor[state.numArrays()];
524 Iterator arrayit=state.getArrayIterator();
525 while(arrayit.hasNext()) {
526 TypeDescriptor td=(TypeDescriptor)arrayit.next();
527 int id=state.getArrayNumber(td);
531 for(int i=0;i<state.numArrays();i++) {
533 outclassdefs.print(", ");
534 TypeDescriptor tdelement=arraytable[i].dereference();
535 if (tdelement.isArray()||tdelement.isClass())
536 outclassdefs.print("sizeof(void *)");
538 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
542 outclassdefs.println("};");
545 /** Constructs params and temp objects for each method or task.
546 * These objects tell the compiler which temps need to be
549 private void generateTempStructs(FlatMethod fm) {
550 MethodDescriptor md=fm.getMethod();
551 TaskDescriptor task=fm.getTask();
553 ParamsObject objectparams=md!=null?new ParamsObject(md,tag++):new ParamsObject(task, tag++);
555 paramstable.put(md, objectparams);
557 paramstable.put(task, objectparams);
559 for(int i=0;i<fm.numParameters();i++) {
560 TempDescriptor temp=fm.getParameter(i);
561 TypeDescriptor type=temp.getType();
562 if ((type.isPtr()||type.isArray())&&GENERATEPRECISEGC)
563 objectparams.addPtr(temp);
565 objectparams.addPrim(temp);
568 TempObject objecttemps=md!=null?new TempObject(objectparams,md,tag++):new TempObject(objectparams, task, tag++);
570 tempstable.put(md, objecttemps);
572 tempstable.put(task, objecttemps);
574 for(Iterator nodeit=fm.getNodeSet().iterator();nodeit.hasNext();) {
575 FlatNode fn=(FlatNode)nodeit.next();
576 TempDescriptor[] writes=fn.writesTemps();
577 for(int i=0;i<writes.length;i++) {
578 TempDescriptor temp=writes[i];
579 TypeDescriptor type=temp.getType();
580 if ((type.isPtr()||type.isArray())&&GENERATEPRECISEGC)
581 objecttemps.addPtr(temp);
583 objecttemps.addPrim(temp);
588 private void generateLayoutStructs(PrintWriter output) {
589 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
590 while(it.hasNext()) {
591 ClassDescriptor cn=(ClassDescriptor)it.next();
592 output.println("int "+cn.getSafeSymbol()+"_pointers[]={");
593 Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
595 while(allit.hasNext()) {
596 FieldDescriptor fd=(FieldDescriptor)allit.next();
597 TypeDescriptor type=fd.getType();
598 if (type.isPtr()||type.isArray())
602 allit=cn.getFieldTable().getAllDescriptorsIterator();
603 while(allit.hasNext()) {
604 FieldDescriptor fd=(FieldDescriptor)allit.next();
605 TypeDescriptor type=fd.getType();
606 if (type.isPtr()||type.isArray()) {
608 output.print("((int)&(((struct "+cn.getSafeSymbol() +" *)0)->"+fd.getSafeSymbol()+"))");
611 output.println("};");
613 output.println("int * pointerarray[]={");
614 boolean needcomma=false;
615 for(int i=0;i<state.numClasses();i++) {
616 ClassDescriptor cn=cdarray[i];
620 output.print(cn.getSafeSymbol()+"_pointers");
623 for(int i=0;i<state.numArrays();i++) {
625 output.println(", ");
626 TypeDescriptor tdelement=arraytable[i].dereference();
627 if (tdelement.isArray()||tdelement.isClass())
628 output.print("((int *)1)");
634 output.println("};");
636 output.println("int hasflags[]={");
637 for(int i=0;i<state.numClasses();i++) {
638 ClassDescriptor cn=cdarray[i];
640 output.println(", ");
647 output.println("};");
650 /** Print out table to give us supertypes */
651 private void generateSuperTypeTable(PrintWriter output) {
652 output.println("int supertypes[]={");
653 boolean needcomma=false;
654 for(int i=0;i<state.numClasses();i++) {
655 ClassDescriptor cn=cdarray[i];
659 if (cn.getSuperDesc()!=null) {
660 ClassDescriptor cdsuper=cn.getSuperDesc();
661 output.print(cdsuper.getId());
665 output.println("};");
668 /** Force consistent field ordering between inherited classes. */
670 private void printClassStruct(ClassDescriptor cn, PrintWriter classdefout) {
671 ClassDescriptor sp=cn.getSuperDesc();
673 printClassStruct(sp, classdefout);
675 if (!fieldorder.containsKey(cn)) {
676 Vector fields=new Vector();
677 fieldorder.put(cn,fields);
678 Iterator fieldit=cn.getFields();
679 while(fieldit.hasNext()) {
680 FieldDescriptor fd=(FieldDescriptor)fieldit.next();
681 if (sp==null||!sp.getFieldTable().contains(fd.getSymbol()))
685 Vector fields=(Vector)fieldorder.get(cn);
687 for(int i=0;i<fields.size();i++) {
688 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
689 if (fd.getType().isClass()||fd.getType().isArray())
690 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
692 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
697 /* Map flags to integers consistently between inherited
700 private void mapFlags(ClassDescriptor cn) {
701 ClassDescriptor sp=cn.getSuperDesc();
705 if (!flagorder.containsKey(cn)) {
706 Hashtable flags=new Hashtable();
707 flagorder.put(cn,flags);
709 Hashtable superflags=(Hashtable)flagorder.get(sp);
710 Iterator superflagit=superflags.keySet().iterator();
711 while(superflagit.hasNext()) {
712 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
713 Integer number=(Integer)superflags.get(fd);
714 flags.put(fd, number);
715 if ((number.intValue()+1)>max)
716 max=number.intValue()+1;
720 Iterator flagit=cn.getFlags();
721 while(flagit.hasNext()) {
722 FlagDescriptor fd=(FlagDescriptor)flagit.next();
723 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
724 flags.put(fd, new Integer(max++));
730 /** This function outputs (1) structures that parameters are
731 * passed in (when PRECISE GC is enabled) and (2) function
732 * prototypes for the methods */
734 private void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
735 /* Output class structure */
736 classdefout.println("struct "+cn.getSafeSymbol()+" {");
737 classdefout.println(" int type;");
739 classdefout.println(" pthread_t tid;");
740 classdefout.println(" void * lockentry;");
741 classdefout.println(" int lockcount;");
745 classdefout.println(" int flag;");
746 classdefout.println(" void * flagptr;");
748 printClassStruct(cn, classdefout);
749 classdefout.println("};\n");
751 /* Cycle through methods */
752 Iterator methodit=cn.getMethods();
753 while(methodit.hasNext()) {
754 /* Classify parameters */
755 MethodDescriptor md=(MethodDescriptor)methodit.next();
756 FlatMethod fm=state.getMethodFlat(md);
757 generateTempStructs(fm);
759 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
760 TempObject objecttemps=(TempObject) tempstable.get(md);
762 /* Output parameter structure */
763 if (GENERATEPRECISEGC) {
764 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
765 output.println(" int size;");
766 output.println(" void * next;");
767 for(int i=0;i<objectparams.numPointers();i++) {
768 TempDescriptor temp=objectparams.getPointer(i);
769 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
771 output.println("};\n");
774 /* Output temp structure */
775 if (GENERATEPRECISEGC) {
776 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
777 output.println(" int size;");
778 output.println(" void * next;");
779 for(int i=0;i<objecttemps.numPointers();i++) {
780 TempDescriptor temp=objecttemps.getPointer(i);
781 if (temp.getType().isNull())
782 output.println(" void * "+temp.getSafeSymbol()+";");
784 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
786 output.println("};\n");
789 /* Output method declaration */
790 if (md.getReturnType()!=null) {
791 if (md.getReturnType().isClass()||md.getReturnType().isArray())
792 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
794 headersout.print(md.getReturnType().getSafeSymbol()+" ");
796 //catch the constructor case
797 headersout.print("void ");
798 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
800 boolean printcomma=false;
801 if (GENERATEPRECISEGC) {
802 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
806 //output parameter list
807 for(int i=0;i<objectparams.numPrimitives();i++) {
808 TempDescriptor temp=objectparams.getPrimitive(i);
810 headersout.print(", ");
812 if (temp.getType().isClass()||temp.getType().isArray())
813 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
815 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
817 headersout.println(");\n");
822 /** This function outputs (1) structures that parameters are
823 * passed in (when PRECISE GC is enabled) and (2) function
824 * prototypes for the tasks */
826 private void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
827 /* Cycle through tasks */
828 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
830 while(taskit.hasNext()) {
831 /* Classify parameters */
832 TaskDescriptor task=(TaskDescriptor)taskit.next();
833 FlatMethod fm=state.getMethodFlat(task);
834 generateTempStructs(fm);
836 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
837 TempObject objecttemps=(TempObject) tempstable.get(task);
839 /* Output parameter structure */
840 if (GENERATEPRECISEGC) {
841 output.println("struct "+task.getSafeSymbol()+"_params {");
843 output.println(" int size;");
844 output.println(" void * next;");
845 for(int i=0;i<objectparams.numPointers();i++) {
846 TempDescriptor temp=objectparams.getPointer(i);
847 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
849 output.println("};\n");
850 if (objectparams.numPointers()>maxtaskparams)
851 maxtaskparams=objectparams.numPointers();
854 /* Output temp structure */
855 if (GENERATEPRECISEGC) {
856 output.println("struct "+task.getSafeSymbol()+"_locals {");
857 output.println(" int size;");
858 output.println(" void * next;");
859 for(int i=0;i<objecttemps.numPointers();i++) {
860 TempDescriptor temp=objecttemps.getPointer(i);
861 if (temp.getType().isNull())
862 output.println(" void * "+temp.getSafeSymbol()+";");
864 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
866 output.println("};\n");
869 /* Output task declaration */
870 headersout.print("void " + task.getSafeSymbol()+"(");
872 boolean printcomma=false;
873 if (GENERATEPRECISEGC) {
874 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
876 headersout.print("void * parameterarray[]");
877 headersout.println(");\n");
881 /** Generate code for flatmethod fm. */
883 private void generateFlatMethod(FlatMethod fm, PrintWriter output) {
884 MethodDescriptor md=fm.getMethod();
885 TaskDescriptor task=fm.getTask();
887 ClassDescriptor cn=md!=null?md.getClassDesc():null;
889 ParamsObject objectparams=(ParamsObject)paramstable.get(md!=null?md:task);
891 generateHeader(md!=null?md:task,output);
893 TempObject objecttemp=(TempObject) tempstable.get(md!=null?md:task);
896 if (GENERATEPRECISEGC) {
898 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
900 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
902 output.print(objecttemp.numPointers()+",");
903 output.print(paramsprefix);
904 for(int j=0;j<objecttemp.numPointers();j++)
905 output.print(", NULL");
906 output.println("};");
909 for(int i=0;i<objecttemp.numPrimitives();i++) {
910 TempDescriptor td=objecttemp.getPrimitive(i);
911 TypeDescriptor type=td.getType();
913 output.println(" void * "+td.getSafeSymbol()+";");
914 else if (type.isClass()||type.isArray())
915 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
917 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
920 /* Generate labels first */
921 HashSet tovisit=new HashSet();
922 HashSet visited=new HashSet();
924 Hashtable nodetolabel=new Hashtable();
925 tovisit.add(fm.methodEntryNode());
926 FlatNode current_node=null;
929 //Node needs a label if it is
930 while(!tovisit.isEmpty()) {
931 FlatNode fn=(FlatNode)tovisit.iterator().next();
934 for(int i=0;i<fn.numNext();i++) {
935 FlatNode nn=fn.getNext(i);
938 nodetolabel.put(nn,new Integer(labelindex++));
940 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
944 nodetolabel.put(nn,new Integer(labelindex++));
949 if (state.THREAD&&GENERATEPRECISEGC) {
950 output.println("checkcollect(&"+localsprefix+");");
953 //Do the actual code generation
954 tovisit=new HashSet();
955 visited=new HashSet();
956 tovisit.add(fm.methodEntryNode());
957 while(current_node!=null||!tovisit.isEmpty()) {
958 if (current_node==null) {
959 current_node=(FlatNode)tovisit.iterator().next();
960 tovisit.remove(current_node);
962 visited.add(current_node);
963 if (nodetolabel.containsKey(current_node))
964 output.println("L"+nodetolabel.get(current_node)+":");
965 if (state.INSTRUCTIONFAILURE) {
967 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
970 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
972 if (current_node.numNext()==0) {
974 generateFlatNode(fm, current_node, output);
975 if (current_node.kind()!=FKind.FlatReturnNode) {
976 output.println(" return;");
979 } else if(current_node.numNext()==1) {
981 generateFlatNode(fm, current_node, output);
982 FlatNode nextnode=current_node.getNext(0);
983 if (visited.contains(nextnode)) {
984 output.println("goto L"+nodetolabel.get(nextnode)+";");
987 current_node=nextnode;
988 } else if (current_node.numNext()==2) {
991 generateFlatCondBranch(fm, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
992 if (!visited.contains(current_node.getNext(1)))
993 tovisit.add(current_node.getNext(1));
994 if (visited.contains(current_node.getNext(0))) {
995 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
998 current_node=current_node.getNext(0);
999 } else throw new Error();
1003 output.println("}\n\n");
1006 /** Generate text string that corresponds to the Temp td. */
1007 private String generateTemp(FlatMethod fm, TempDescriptor td) {
1008 MethodDescriptor md=fm.getMethod();
1009 TaskDescriptor task=fm.getTask();
1010 TempObject objecttemps=(TempObject) tempstable.get(md!=null?md:task);
1012 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1013 return td.getSafeSymbol();
1016 if (objecttemps.isLocalPtr(td)) {
1017 return localsprefix+"."+td.getSafeSymbol();
1020 if (objecttemps.isParamPtr(td)) {
1021 return paramsprefix+"->"+td.getSafeSymbol();
1026 private void generateFlatNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
1028 case FKind.FlatCall:
1029 generateFlatCall(fm, (FlatCall) fn,output);
1031 case FKind.FlatFieldNode:
1032 generateFlatFieldNode(fm, (FlatFieldNode) fn,output);
1034 case FKind.FlatElementNode:
1035 generateFlatElementNode(fm, (FlatElementNode) fn,output);
1037 case FKind.FlatSetElementNode:
1038 generateFlatSetElementNode(fm, (FlatSetElementNode) fn,output);
1040 case FKind.FlatSetFieldNode:
1041 generateFlatSetFieldNode(fm, (FlatSetFieldNode) fn,output);
1044 generateFlatNew(fm, (FlatNew) fn,output);
1046 case FKind.FlatOpNode:
1047 generateFlatOpNode(fm, (FlatOpNode) fn,output);
1049 case FKind.FlatCastNode:
1050 generateFlatCastNode(fm, (FlatCastNode) fn,output);
1052 case FKind.FlatLiteralNode:
1053 generateFlatLiteralNode(fm, (FlatLiteralNode) fn,output);
1055 case FKind.FlatReturnNode:
1056 generateFlatReturnNode(fm, (FlatReturnNode) fn,output);
1059 output.println("/* nop */");
1061 case FKind.FlatBackEdge:
1062 if (state.THREAD&&GENERATEPRECISEGC) {
1063 output.println("checkcollect(&"+localsprefix+");");
1065 output.println("/* nop */");
1067 case FKind.FlatCheckNode:
1068 generateFlatCheckNode(fm, (FlatCheckNode) fn, output);
1070 case FKind.FlatFlagActionNode:
1071 generateFlatFlagActionNode(fm, (FlatFlagActionNode) fn, output);
1078 private void generateFlatCheckNode(FlatMethod fm, FlatCheckNode fcn, PrintWriter output) {
1080 if (state.CONSCHECK) {
1081 String specname=fcn.getSpec();
1082 String varname="repairstate___";
1083 output.println("{");
1084 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1086 TempDescriptor[] temps=fcn.getTemps();
1087 String[] vars=fcn.getVars();
1088 for(int i=0;i<temps.length;i++) {
1089 output.println(varname+"->"+vars[i]+"=(int)"+generateTemp(fm, temps[i])+";");
1092 output.println("if (doanalysis"+specname+"("+varname+")) {");
1093 output.println("free"+specname+"_state("+varname+");");
1094 output.println("} else {");
1095 output.println("/* Bad invariant */");
1096 output.println("free"+specname+"_state("+varname+");");
1097 output.println("abort_task();");
1098 output.println("}");
1100 output.println("}");
1104 private void generateFlatCall(FlatMethod fm, FlatCall fc, PrintWriter output) {
1105 MethodDescriptor md=fc.getMethod();
1106 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1107 ClassDescriptor cn=md.getClassDesc();
1108 output.println("{");
1109 if (GENERATEPRECISEGC) {
1110 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
1112 output.print(objectparams.numPointers());
1113 // output.print(objectparams.getUID());
1114 output.print(", & "+localsprefix);
1115 if (fc.getThis()!=null) {
1117 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis()));
1119 for(int i=0;i<fc.numArgs();i++) {
1120 VarDescriptor var=md.getParameter(i);
1121 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1122 if (objectparams.isParamPtr(paramtemp)) {
1123 TempDescriptor targ=fc.getArg(i);
1125 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ));
1128 output.println("};");
1133 if (fc.getReturnTemp()!=null)
1134 output.print(generateTemp(fm,fc.getReturnTemp())+"=");
1136 /* Do we need to do virtual dispatch? */
1137 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
1138 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
1142 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1143 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1145 output.print(md.getReturnType().getSafeSymbol()+" ");
1146 output.print("(*)(");
1148 boolean printcomma=false;
1149 if (GENERATEPRECISEGC) {
1150 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
1155 for(int i=0;i<objectparams.numPrimitives();i++) {
1156 TempDescriptor temp=objectparams.getPrimitive(i);
1160 if (temp.getType().isClass()||temp.getType().isArray())
1161 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
1163 output.print(temp.getType().getSafeSymbol());
1166 output.print("))virtualtable["+generateTemp(fm,fc.getThis())+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
1170 boolean needcomma=false;
1171 if (GENERATEPRECISEGC) {
1172 output.print("&__parameterlist__");
1175 if (fc.getThis()!=null) {
1176 TypeDescriptor ptd=md.getThis().getType();
1177 if (ptd.isClass()&&!ptd.isArray())
1178 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1179 output.print(generateTemp(fm,fc.getThis()));
1183 for(int i=0;i<fc.numArgs();i++) {
1184 VarDescriptor var=md.getParameter(i);
1185 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
1186 if (objectparams.isParamPrim(paramtemp)) {
1187 TempDescriptor targ=fc.getArg(i);
1191 TypeDescriptor ptd=md.getParamType(i);
1192 if (ptd.isClass()&&!ptd.isArray())
1193 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
1194 output.print(generateTemp(fm, targ));
1198 output.println(");");
1199 output.println(" }");
1202 private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
1203 Set subclasses=typeutil.getSubClasses(thiscd);
1204 if (subclasses==null)
1206 for(Iterator classit=subclasses.iterator();classit.hasNext();) {
1207 ClassDescriptor cd=(ClassDescriptor)classit.next();
1208 Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
1209 for(Iterator matchit=possiblematches.iterator();matchit.hasNext();) {
1210 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
1211 if (md.matches(matchmd))
1218 private void generateFlatFieldNode(FlatMethod fm, FlatFieldNode ffn, PrintWriter output) {
1219 output.println(generateTemp(fm, ffn.getDst())+"="+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
1222 private void generateFlatSetFieldNode(FlatMethod fm, FlatSetFieldNode fsfn, PrintWriter output) {
1223 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
1224 throw new Error("Can't set array length");
1225 output.println(generateTemp(fm, fsfn.getDst())+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
1228 private void generateFlatElementNode(FlatMethod fm, FlatElementNode fen, PrintWriter output) {
1229 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
1232 if (elementtype.isArray()||elementtype.isClass())
1235 type=elementtype.getSafeSymbol()+" ";
1237 if (fen.needsBoundsCheck()) {
1238 output.println("if ("+generateTemp(fm, fen.getIndex())+"< 0 || "+generateTemp(fm, fen.getIndex())+" >= "+generateTemp(fm,fen.getSrc()) + "->___length___)");
1239 output.println("failedboundschk();");
1242 output.println(generateTemp(fm, fen.getDst())+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc())+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex())+"];");
1245 private void generateFlatSetElementNode(FlatMethod fm, FlatSetElementNode fsen, PrintWriter output) {
1246 //TODO: need dynamic check to make sure this assignment is actually legal
1247 //Because Object[] could actually be something more specific...ie. Integer[]
1249 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
1252 if (elementtype.isArray()||elementtype.isClass())
1255 type=elementtype.getSafeSymbol()+" ";
1257 if (fsen.needsBoundsCheck()) {
1258 output.println("if ("+generateTemp(fm, fsen.getIndex())+"< 0 || "+generateTemp(fm, fsen.getIndex())+" >= "+generateTemp(fm,fsen.getDst()) + "->___length___)");
1259 output.println("failedboundschk();");
1262 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst())+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex())+"]="+generateTemp(fm,fsen.getSrc())+";");
1265 private void generateFlatNew(FlatMethod fm, FlatNew fn, PrintWriter output) {
1266 if (fn.getType().isArray()) {
1267 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
1268 if (GENERATEPRECISEGC) {
1269 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray(&"+localsprefix+", "+arrayid+", "+generateTemp(fm, fn.getSize())+");");
1271 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize())+");");
1274 if (GENERATEPRECISEGC) {
1275 output.println(generateTemp(fm,fn.getDst())+"=allocate_new(&"+localsprefix+", "+fn.getType().getClassDesc().getId()+");");
1277 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
1282 private void generateFlatOpNode(FlatMethod fm, FlatOpNode fon, PrintWriter output) {
1284 if (fon.getRight()!=null)
1285 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+fon.getOp().toString()+generateTemp(fm,fon.getRight())+";");
1286 else if (fon.getOp().getOp()==Operation.ASSIGN)
1287 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
1288 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
1289 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
1290 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
1291 output.println(generateTemp(fm, fon.getDest())+" = -"+generateTemp(fm, fon.getLeft())+";");
1292 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
1293 output.println(generateTemp(fm, fon.getDest())+" = !"+generateTemp(fm, fon.getLeft())+";");
1295 output.println(generateTemp(fm, fon.getDest())+fon.getOp().toString()+generateTemp(fm, fon.getLeft())+";");
1298 private void generateFlatCastNode(FlatMethod fm, FlatCastNode fcn, PrintWriter output) {
1299 /* TODO: Do type check here */
1300 if (fcn.getType().isArray()) {
1302 } else if (fcn.getType().isClass())
1303 output.println(generateTemp(fm,fcn.getDst())+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc())+";");
1305 output.println(generateTemp(fm,fcn.getDst())+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc())+";");
1308 private void generateFlatLiteralNode(FlatMethod fm, FlatLiteralNode fln, PrintWriter output) {
1309 if (fln.getValue()==null)
1310 output.println(generateTemp(fm, fln.getDst())+"=0;");
1311 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
1312 if (GENERATEPRECISEGC) {
1313 output.println(generateTemp(fm, fln.getDst())+"=NewString(&"+localsprefix+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
1315 output.println(generateTemp(fm, fln.getDst())+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
1317 } else if (fln.getType().isBoolean()) {
1318 if (((Boolean)fln.getValue()).booleanValue())
1319 output.println(generateTemp(fm, fln.getDst())+"=1;");
1321 output.println(generateTemp(fm, fln.getDst())+"=0;");
1322 } else if (fln.getType().isChar()) {
1323 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
1324 output.println(generateTemp(fm, fln.getDst())+"='"+st+"';");
1326 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+";");
1329 private void generateFlatReturnNode(FlatMethod fm, FlatReturnNode frn, PrintWriter output) {
1331 if (frn.getReturnTemp()!=null)
1332 output.println("return "+generateTemp(fm, frn.getReturnTemp())+";");
1334 output.println("return;");
1337 private void generateFlatCondBranch(FlatMethod fm, FlatCondBranch fcb, String label, PrintWriter output) {
1338 output.println("if (!"+generateTemp(fm, fcb.getTest())+") goto "+label+";");
1341 private void generateHeader(Descriptor des, PrintWriter output) {
1343 ParamsObject objectparams=(ParamsObject)paramstable.get(des);
1344 MethodDescriptor md=null;
1345 TaskDescriptor task=null;
1346 if (des instanceof MethodDescriptor)
1347 md=(MethodDescriptor) des;
1349 task=(TaskDescriptor) des;
1351 ClassDescriptor cn=md!=null?md.getClassDesc():null;
1353 if (md!=null&&md.getReturnType()!=null) {
1354 if (md.getReturnType().isClass()||md.getReturnType().isArray())
1355 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1357 output.print(md.getReturnType().getSafeSymbol()+" ");
1359 //catch the constructor case
1360 output.print("void ");
1362 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1364 output.print(task.getSafeSymbol()+"(");
1366 boolean printcomma=false;
1367 if (GENERATEPRECISEGC) {
1369 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1371 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1376 for(int i=0;i<objectparams.numPrimitives();i++) {
1377 TempDescriptor temp=objectparams.getPrimitive(i);
1381 if (temp.getType().isClass()||temp.getType().isArray())
1382 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1384 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1386 output.println(") {");
1387 } else if (!GENERATEPRECISEGC){
1388 output.println("void * parameterarray[]) {");
1389 for(int i=0;i<objectparams.numPrimitives();i++) {
1390 TempDescriptor temp=objectparams.getPrimitive(i);
1391 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
1393 if (objectparams.numPrimitives()>maxtaskparams)
1394 maxtaskparams=objectparams.numPrimitives();
1395 } else output.println(") {");
1398 public void generateFlatFlagActionNode(FlatMethod fm, FlatFlagActionNode ffan, PrintWriter output) {
1399 output.println("/* FlatFlagActionNode */");
1400 Hashtable flagandtable=new Hashtable();
1401 Hashtable flagortable=new Hashtable();
1404 Iterator flagsit=ffan.getTempFlagPairs();
1405 while(flagsit.hasNext()) {
1406 TempFlagPair tfp=(TempFlagPair)flagsit.next();
1407 TempDescriptor temp=tfp.getTemp();
1408 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
1409 FlagDescriptor flag=tfp.getFlag();
1410 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
1411 boolean flagstatus=ffan.getFlagChange(tfp);
1414 if (flagortable.containsKey(temp)) {
1415 mask=((Integer)flagortable.get(temp)).intValue();
1418 flagortable.put(temp,new Integer(mask));
1420 int mask=0xFFFFFFFF;
1421 if (flagandtable.containsKey(temp)) {
1422 mask=((Integer)flagandtable.get(temp)).intValue();
1424 mask&=(0xFFFFFFFF^flagid);
1425 flagandtable.put(temp,new Integer(mask));
1428 Iterator orit=flagortable.keySet().iterator();
1429 while(orit.hasNext()) {
1430 TempDescriptor temp=(TempDescriptor)orit.next();
1431 int ormask=((Integer)flagortable.get(temp)).intValue();
1432 int andmask=0xFFFFFFF;
1433 if (flagandtable.containsKey(temp))
1434 andmask=((Integer)flagandtable.get(temp)).intValue();
1435 output.println("flagorand("+generateTemp(fm, temp)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
1437 Iterator andit=flagandtable.keySet().iterator();
1438 while(andit.hasNext()) {
1439 TempDescriptor temp=(TempDescriptor)andit.next();
1440 int andmask=((Integer)flagandtable.get(temp)).intValue();
1441 if (!flagortable.containsKey(temp))
1442 output.println("flagorand("+generateTemp(fm, temp)+", 0, 0x"+Integer.toHexString(andmask)+");");