2 import IR.Tree.Modifiers;
3 import IR.Tree.FlagExpressionNode;
4 import IR.Tree.DNFFlag;
5 import IR.Tree.DNFFlagAtom;
6 import IR.Tree.TagExpressionList;
7 import IR.Tree.OffsetNode;
14 import Analysis.TaskStateAnalysis.FlagState;
15 import Analysis.TaskStateAnalysis.FlagComparator;
16 import Analysis.TaskStateAnalysis.OptionalTaskDescriptor;
17 import Analysis.TaskStateAnalysis.Predicate;
18 import Analysis.TaskStateAnalysis.SafetyAnalysis;
19 import Analysis.TaskStateAnalysis.TaskIndex;
20 import Analysis.CallGraph.CallGraph;
21 import Analysis.Loops.GlobalFieldType;
22 import Util.CodePrinter;
24 public class BuildCode {
27 Hashtable paramstable;
32 String localsprefix="___locals___";
33 String localsprefixaddr="&"+localsprefix;
34 String localsprefixderef=localsprefix+".";
35 String fcrevert="___fcrevert___";
36 String paramsprefix="___params___";
37 String nextobjstr="___nextobject___";
38 String localcopystr="___localcopy___";
39 public static boolean GENERATEPRECISEGC=false;
40 public static String PREFIX="";
41 public static String arraytype="ArrayObject";
42 public static int flagcount = 0;
45 protected int maxtaskparams=0;
46 protected int maxcount=0;
47 ClassDescriptor[] cdarray;
48 TypeDescriptor[] arraytable;
51 Hashtable<String, Integer> printedfieldstbl;
54 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil) {
55 this(st, temptovar, typeutil, null);
58 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa) {
61 callgraph=new CallGraph(state);
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, null);
69 printedfieldstbl = new Hashtable<String, Integer>();
72 /** The buildCode method outputs C code for all the methods. The Flat
73 * versions of the methods must already be generated and stored in
74 * the State object. */
77 public void buildCode() {
78 /* Create output streams to write to */
79 PrintWriter outclassdefs=null;
80 PrintWriter outstructs=null;
81 PrintWriter outrepairstructs=null;
82 PrintWriter outmethodheader=null;
83 PrintWriter outmethod=null;
84 PrintWriter outvirtual=null;
85 PrintWriter outtask=null;
86 PrintWriter outtaskdefs=null;
87 PrintWriter outoptionalarrays=null;
88 PrintWriter optionalheaders=null;
89 PrintWriter outglobaldefs=null;
92 buildCodeSetup();//EXTENSION POINT
93 outstructs=new CodePrinter(new FileOutputStream(PREFIX+"structdefs.h"), true);
94 outmethodheader=new CodePrinter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
95 outclassdefs=new CodePrinter(new FileOutputStream(PREFIX+"classdefs.h"), true);
97 // TODO add version for normal Java later
98 outglobaldefs=new CodePrinter(new FileOutputStream(PREFIX+"globaldefs.h"), true);
100 outmethod=new CodePrinter(new FileOutputStream(PREFIX+"methods.c"), true);
101 outvirtual=new CodePrinter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
103 outtask=new CodePrinter(new FileOutputStream(PREFIX+"task.h"), true);
104 outtaskdefs=new CodePrinter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
105 if (state.OPTIONAL) {
106 outoptionalarrays=new CodePrinter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
107 optionalheaders=new CodePrinter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
110 if (state.structfile!=null) {
111 outrepairstructs=new CodePrinter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
113 } catch (Exception e) {
118 /* Fix field safe symbols due to shadowing */
119 FieldShadow.handleFieldShadow(state);
121 /* Build the virtual dispatch tables */
122 buildVirtualTables(outvirtual);
124 /* Tag the methods that are invoked by static blocks */
125 tagMethodInvokedByStaticBlock();
127 /* Output includes */
128 outmethodheader.println("#ifndef METHODHEADERS_H");
129 outmethodheader.println("#define METHODHEADERS_H");
130 outmethodheader.println("#include \"structdefs.h\"");
132 if (state.EVENTMONITOR) {
133 outmethodheader.println("#include \"monitor.h\"");
136 additionalIncludesMethodsHeader(outmethodheader);
138 /* Output Structures */
139 outputStructs(outstructs);
141 // Output the C class declarations
142 // These could mutually reference each other
145 // TODO add version for normal Java later
146 outglobaldefs.println("#ifndef __GLOBALDEF_H_");
147 outglobaldefs.println("#define __GLOBALDEF_H_");
148 outglobaldefs.println("");
149 outglobaldefs.println("struct global_defs_t {");
152 outclassdefs.println("#ifndef __CLASSDEF_H_");
153 outclassdefs.println("#define __CLASSDEF_H_");
154 outputClassDeclarations(outclassdefs, outglobaldefs);
156 // Output function prototypes and structures for parameters
157 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
158 while(it.hasNext()) {
159 ClassDescriptor cn=(ClassDescriptor)it.next();
160 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader, outglobaldefs);
162 outclassdefs.println("#endif");
163 outclassdefs.close();
165 // TODO add version for normal Java later
166 outglobaldefs.println("};");
167 outglobaldefs.println("");
168 outglobaldefs.println("extern struct global_defs_t * global_defs_p;");
169 outglobaldefs.println("#endif");
170 outglobaldefs.flush();
171 outglobaldefs.close();
175 /* Map flags to integers */
176 /* The runtime keeps track of flags using these integers */
177 it=state.getClassSymbolTable().getDescriptorsIterator();
178 while(it.hasNext()) {
179 ClassDescriptor cn=(ClassDescriptor)it.next();
183 generateTaskStructs(outstructs, outmethodheader);
185 /* Outputs generic task structures if this is a task
187 outputTaskTypes(outtask);
191 // an opportunity for subclasses to do extra
193 preCodeGenInitialization();
196 /* Build the actual methods */
197 outputMethods(outmethod);
200 // opportunity for subclasses to gen extra code
201 additionalCodeGen(outmethodheader,
207 /* Output code for tasks */
208 outputTaskCode(outtaskdefs, outmethod);
210 /* Record maximum number of task parameters */
211 outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
212 } else if (state.main!=null) {
213 /* Generate main method */
214 outputMainMethod(outmethod);
217 /* Generate information for task with optional parameters */
218 if (state.TASK&&state.OPTIONAL) {
219 generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
220 outoptionalarrays.close();
223 /* Output structure definitions for repair tool */
224 if (state.structfile!=null) {
225 buildRepairStructs(outrepairstructs);
226 outrepairstructs.close();
230 outmethodheader.println("#endif");
231 outmethodheader.close();
233 outstructs.println("#endif");
238 postCodeGenCleanUp();
243 /* This method goes though the call graph and tag those methods that are
244 * invoked inside static blocks
246 protected void tagMethodInvokedByStaticBlock() {
248 Iterator it_sclasses = this.state.getSClassSymbolTable().getDescriptorsIterator();
249 MethodDescriptor current_md=null;
250 HashSet tovisit=new HashSet();
251 HashSet visited=new HashSet();
253 while(it_sclasses.hasNext()) {
254 ClassDescriptor cd = (ClassDescriptor)it_sclasses.next();
255 MethodDescriptor md = (MethodDescriptor)cd.getMethodTable().get("staticblocks");
261 while(!tovisit.isEmpty()) {
262 current_md=(MethodDescriptor)tovisit.iterator().next();
263 tovisit.remove(current_md);
264 visited.add(current_md);
265 Iterator it_callee = this.callgraph.getCalleeSet(current_md).iterator();
266 while(it_callee.hasNext()) {
267 Descriptor d = (Descriptor)it_callee.next();
268 if(d instanceof MethodDescriptor) {
269 if(!visited.contains(d)) {
270 ((MethodDescriptor)d).setIsInvokedByStatic(true);
276 } // TODO for normal Java version
279 /* This code generates code for each static block and static field
281 protected void outputStaticBlocks(PrintWriter outmethod) {
282 // execute all the static blocks and all the static field initializations
286 /* This code generates code to create a Class object for each class for
289 protected void outputClassObjects(PrintWriter outmethod) {
290 // for each class, initialize its Class object
294 /* This code just generates the main C method for java programs.
295 * The main C method packs up the arguments into a string array
296 * and passes it to the java main method. */
298 protected void outputMainMethod(PrintWriter outmethod) {
299 outmethod.println("int main(int argc, const char *argv[]) {");
300 outmethod.println(" int i;");
302 outputStaticBlocks(outmethod);
303 outputClassObjects(outmethod);
306 additionalCodeAtTopOfMain(outmethod);
309 outmethod.println("initializethreads();");
312 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
313 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
315 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
317 outmethod.println(" for(i=1;i<argc;i++) {");
318 outmethod.println(" int length=strlen(argv[i]);");
320 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
321 outmethod.println(" struct ___String___ *newstring=NewString(NULL, argv[i], length);");
323 outmethod.println(" struct ___String___ *newstring=NewString(argv[i], length);");
325 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
326 outmethod.println(" }");
328 MethodDescriptor md=typeutil.getMain();
329 ClassDescriptor cd=typeutil.getMainClass();
331 outmethod.println(" {");
332 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
333 outmethod.print(" struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
334 outmethod.println("1, NULL,"+"stringarray};");
335 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
337 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
339 outmethod.println(" }");
342 outmethod.println("pthread_mutex_lock(&gclistlock);");
343 outmethod.println("threadcount--;");
344 outmethod.println("pthread_cond_signal(&gccond);");
345 outmethod.println("pthread_mutex_unlock(&gclistlock);");
348 if (state.EVENTMONITOR) {
349 outmethod.println("dumpdata();");
353 outmethod.println("pthread_exit(NULL);");
356 additionalCodeAtBottomOfMain(outmethod);
358 outmethod.println("}");
361 /* This method outputs code for each task. */
363 protected void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
364 /* Compile task based program */
365 outtaskdefs.println("#include \"task.h\"");
366 outtaskdefs.println("#include \"methodheaders.h\"");
367 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
368 while(taskit.hasNext()) {
369 TaskDescriptor td=(TaskDescriptor)taskit.next();
370 FlatMethod fm=state.getMethodFlat(td);
371 generateFlatMethod(fm, outmethod);
372 generateTaskDescriptor(outtaskdefs, fm, td);
375 //Output task descriptors
376 taskit=state.getTaskSymbolTable().getDescriptorsIterator();
377 outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
379 while(taskit.hasNext()) {
380 TaskDescriptor td=(TaskDescriptor)taskit.next();
384 outtaskdefs.println(",");
385 outtaskdefs.print("&task_"+td.getSafeSymbol());
387 outtaskdefs.println("};");
389 outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
393 /* This method outputs most of the methods.c file. This includes
394 * some standard includes and then an array with the sizes of
395 * objets and array that stores supertype and then the code for
396 * the Java methods.. */
397 protected void outputMethods(PrintWriter outmethod) {
398 outmethod.println("#include \"methodheaders.h\"");
399 outmethod.println("#include \"virtualtable.h\"");
400 outmethod.println("#include \"runtime.h\"");
402 // always include: compiler directives will leave out
403 // instrumentation when option is not set
404 outmethod.println("#include \"coreprof/coreprof.h\"");
406 if (state.FASTCHECK) {
407 outmethod.println("#include \"localobjects.h\"");
409 if(state.MULTICORE) {
411 outmethod.println("#include \"task.h\"");
413 outmethod.println("#include \"multicoreruntime.h\"");
414 outmethod.println("#include \"runtime_arch.h\"");
416 if (state.THREAD||state.DSM||state.SINGLETM) {
417 outmethod.println("#include <thread.h>");
420 outmethod.println("#include \"thread.h\"");
422 if (state.main!=null) {
423 outmethod.println("#include <string.h>");
425 if (state.CONSCHECK) {
426 outmethod.println("#include \"checkers.h\"");
430 additionalIncludesMethodsImplementation(outmethod);
434 // TODO add version for normal Java later
435 outmethod.println("struct global_defs_t * global_defs_p;");
437 //Store the sizes of classes & array elements
438 generateSizeArray(outmethod);
440 //Store table of supertypes
441 generateSuperTypeTable(outmethod);
443 //Store the layout of classes
444 generateLayoutStructs(outmethod);
447 additionalCodeAtTopMethodsImplementation(outmethod);
449 generateMethods(outmethod);
452 protected void generateMethods(PrintWriter outmethod) {
453 /* Generate code for methods */
454 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
455 while(classit.hasNext()) {
456 ClassDescriptor cn=(ClassDescriptor)classit.next();
457 Iterator methodit=cn.getMethods();
458 while(methodit.hasNext()) {
459 /* Classify parameters */
460 MethodDescriptor md=(MethodDescriptor)methodit.next();
461 FlatMethod fm=state.getMethodFlat(md);
462 if (!md.getModifiers().isNative()) {
463 generateFlatMethod(fm, outmethod);
469 protected void outputStructs(PrintWriter outstructs) {
470 outstructs.println("#ifndef STRUCTDEFS_H");
471 outstructs.println("#define STRUCTDEFS_H");
472 outstructs.println("#include \"classdefs.h\"");
473 outstructs.println("#ifndef INTPTR");
474 outstructs.println("#ifdef BIT64");
475 outstructs.println("#define INTPTR long");
476 outstructs.println("#else");
477 outstructs.println("#define INTPTR int");
478 outstructs.println("#endif");
479 outstructs.println("#endif");
482 additionalIncludesStructsHeader(outstructs);
485 /* Output #defines that the runtime uses to determine type
486 * numbers for various objects it needs */
487 outstructs.println("#define MAXCOUNT "+maxcount);
489 outstructs.println("#define STRINGARRAYTYPE "+
490 (state.getArrayNumber(
491 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
493 outstructs.println("#define OBJECTARRAYTYPE "+
494 (state.getArrayNumber(
495 (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
498 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
499 outstructs.println("#define CHARARRAYTYPE "+
500 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
502 outstructs.println("#define BYTEARRAYTYPE "+
503 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
505 outstructs.println("#define BYTEARRAYARRAYTYPE "+
506 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
508 outstructs.println("#define NUMCLASSES "+state.numClasses());
509 int totalClassSize = state.numClasses() + state.numArrays();
510 outstructs.println("#define TOTALNUMCLASSANDARRAY "+ totalClassSize);
512 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
513 outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
514 outstructs.println("#define TAGARRAYTYPE "+
515 (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
519 protected void outputClassDeclarations(PrintWriter outclassdefs, PrintWriter outglobaldefs) {
520 if (state.THREAD||state.DSM||state.SINGLETM)
521 outclassdefs.println("#include <pthread.h>");
522 outclassdefs.println("#ifndef INTPTR");
523 outclassdefs.println("#ifdef BIT64");
524 outclassdefs.println("#define INTPTR long");
525 outclassdefs.println("#else");
526 outclassdefs.println("#define INTPTR int");
527 outclassdefs.println("#endif");
528 outclassdefs.println("#endif");
530 outclassdefs.println("#include \"optionalstruct.h\"");
531 outclassdefs.println("struct "+arraytype+";");
532 /* Start by declaring all structs */
533 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
534 while(it.hasNext()) {
535 ClassDescriptor cn=(ClassDescriptor)it.next();
536 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
539 // TODO add version for normal Java later
540 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
541 // this class has static fields/blocks, need to add a global flag to
542 // indicate if its static fields have been initialized and/or if its
543 // static blocks have been executed
544 outglobaldefs.println(" int "+cn.getSafeSymbol()+"static_block_exe_flag;");
547 // for each class, create a global object
548 outglobaldefs.println(" struct ___Object___ "+cn.getSafeSymbol()+"classobj;");
551 outclassdefs.println("");
552 //Print out definition for array type
553 outclassdefs.println("struct "+arraytype+" {");
554 outclassdefs.println(" int type;");
557 additionalClassObjectFields(outclassdefs);
560 if (state.EVENTMONITOR) {
561 outclassdefs.println(" int objuid;");
564 outclassdefs.println(" pthread_t tid;");
565 outclassdefs.println(" void * lockentry;");
566 outclassdefs.println(" int lockcount;");
569 outclassdefs.println(" int mutex;");
570 outclassdefs.println(" int objlock;");
571 if(state.MULTICOREGC) {
572 outclassdefs.println(" int marked;");
576 outclassdefs.println(" int flag;");
577 if(!state.MULTICORE) {
578 outclassdefs.println(" void * flagptr;");
580 outclassdefs.println(" int version;");
581 outclassdefs.println(" int * lock;"); // lock entry for this obj
582 outclassdefs.println(" int mutex;");
583 outclassdefs.println(" int lockcount;");
584 if(state.MULTICOREGC) {
585 outclassdefs.println(" int marked;");
589 outclassdefs.println(" int numfses;");
590 outclassdefs.println(" int * fses;");
594 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs, outglobaldefs);
595 printedfieldstbl.clear();
596 printExtraArrayFields(outclassdefs);
597 if (state.ARRAYPAD) {
598 outclassdefs.println(" int paddingforarray;");
601 outclassdefs.println(" int ___length___;");
602 outclassdefs.println("};\n");
605 // TODO add version for normal Java later
606 outclassdefs.println("");
607 //Print out definition for Class type
608 outclassdefs.println("struct Class {");
609 outclassdefs.println(" int type;");
612 additionalClassObjectFields(outclassdefs);
615 if (state.EVENTMONITOR) {
616 outclassdefs.println(" int objuid;");
619 outclassdefs.println(" pthread_t tid;");
620 outclassdefs.println(" void * lockentry;");
621 outclassdefs.println(" int lockcount;");
624 outclassdefs.println(" int mutex;");
625 outclassdefs.println(" int objlock;");
626 if(state.MULTICOREGC) {
627 outclassdefs.println(" int marked;");
631 outclassdefs.println(" int flag;");
632 if(!state.MULTICORE) {
633 outclassdefs.println(" void * flagptr;");
635 outclassdefs.println(" int version;");
636 outclassdefs.println(" int * lock;"); // lock entry for this obj
637 outclassdefs.println(" int mutex;");
638 outclassdefs.println(" int lockcount;");
639 if(state.MULTICOREGC) {
640 outclassdefs.println(" int marked;");
644 outclassdefs.println(" int numfses;");
645 outclassdefs.println(" int * fses;");
648 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs, outglobaldefs);
649 printedfieldstbl.clear();
650 outclassdefs.println("};\n");
653 outclassdefs.println("");
654 outclassdefs.println("extern int classsize[];");
655 outclassdefs.println("extern int hasflags[];");
656 outclassdefs.println("extern unsigned INTPTR * pointerarray[];");
657 outclassdefs.println("extern int supertypes[];");
658 outclassdefs.println("");
661 /** Prints out definitions for generic task structures */
663 protected void outputTaskTypes(PrintWriter outtask) {
664 outtask.println("#ifndef _TASK_H");
665 outtask.println("#define _TASK_H");
666 outtask.println("struct parameterdescriptor {");
667 outtask.println("int type;");
668 outtask.println("int numberterms;");
669 outtask.println("int *intarray;");
670 outtask.println("void * queue;");
671 outtask.println("int numbertags;");
672 outtask.println("int *tagarray;");
673 outtask.println("};");
675 outtask.println("struct taskdescriptor {");
676 outtask.println("void * taskptr;");
677 outtask.println("int numParameters;");
678 outtask.println(" int numTotal;");
679 outtask.println("struct parameterdescriptor **descriptorarray;");
680 outtask.println("char * name;");
681 outtask.println("};");
682 outtask.println("extern struct taskdescriptor * taskarray[];");
683 outtask.println("extern numtasks;");
684 outtask.println("#endif");
688 protected void buildRepairStructs(PrintWriter outrepairstructs) {
689 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
690 while(classit.hasNext()) {
691 ClassDescriptor cn=(ClassDescriptor)classit.next();
692 outrepairstructs.println("structure "+cn.getSymbol()+" {");
693 outrepairstructs.println(" int __type__;");
695 outrepairstructs.println(" int __flag__;");
696 if(!state.MULTICORE) {
697 outrepairstructs.println(" int __flagptr__;");
700 printRepairStruct(cn, outrepairstructs);
701 outrepairstructs.println("}\n");
704 for(int i=0; i<state.numArrays(); i++) {
705 TypeDescriptor tdarray=arraytable[i];
706 TypeDescriptor tdelement=tdarray.dereference();
707 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
708 outrepairstructs.println(" int __type__;");
709 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
710 outrepairstructs.println(" int length;");
711 outrepairstructs.println("}\n");
715 protected void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
716 ClassDescriptor sp=cn.getSuperDesc();
718 printRepairStruct(sp, output);
720 Vector fields=(Vector)fieldorder.get(cn);
722 for(int i=0; i<fields.size(); i++) {
723 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
724 if (fd.getType().isArray()) {
725 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
726 } else if (fd.getType().isClass())
727 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
728 else if (fd.getType().isFloat())
729 output.println(" int "+fd.getSymbol()+"; /* really float */");
731 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
735 /** This method outputs TaskDescriptor information */
736 protected void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
737 for (int i=0; i<task.numParameters(); i++) {
738 VarDescriptor param_var=task.getParameter(i);
739 TypeDescriptor param_type=task.getParamType(i);
740 FlagExpressionNode param_flag=task.getFlag(param_var);
741 TagExpressionList param_tag=task.getTag(param_var);
744 if (param_flag==null) {
745 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
746 output.println("0x0, 0x0 };");
749 DNFFlag dflag=param_flag.getDNF();
750 dnfterms=dflag.size();
752 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
753 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
754 for(int j=0; j<dflag.size(); j++) {
757 Vector term=dflag.get(j);
760 for(int k=0; k<term.size(); k++) {
761 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
762 FlagDescriptor fd=dfa.getFlag();
763 boolean negated=dfa.getNegated();
764 int flagid=1<<((Integer)flags.get(fd)).intValue();
769 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
771 output.println("};");
774 output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
776 for(int j=0; j<param_tag.numTags(); j++) {
779 /* for each tag we need */
780 /* which slot it is */
781 /* what type it is */
782 TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
783 TempDescriptor tmp=param_tag.getTemp(j);
784 int slot=fm.getTagInt(tmp);
785 output.println(slot+", "+state.getTagId(tvd.getTag()));
787 output.println("};");
789 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
790 output.println("/* type */"+param_type.getClassDesc().getId()+",");
791 output.println("/* number of DNF terms */"+dnfterms+",");
792 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
793 output.println("0,");
795 output.println("/* number of tags */"+param_tag.numTags()+",");
797 output.println("/* number of tags */ 0,");
798 output.println("parametertag_"+i+"_"+task.getSafeSymbol());
799 output.println("};");
803 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
804 for (int i=0; i<task.numParameters(); i++) {
807 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
809 output.println("};");
811 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
812 output.println("&"+task.getSafeSymbol()+",");
813 output.println("/* number of parameters */" +task.numParameters() + ",");
814 int numtotal=task.numParameters()+fm.numTags();
815 output.println("/* number total parameters */" +numtotal + ",");
816 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
817 output.println("\""+task.getSymbol()+"\"");
818 output.println("};");
822 /** The buildVirtualTables method outputs the virtual dispatch
823 * tables for methods. */
825 protected void buildVirtualTables(PrintWriter outvirtual) {
826 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
827 while(classit.hasNext()) {
828 ClassDescriptor cd=(ClassDescriptor)classit.next();
829 if (virtualcalls.getMethodCount(cd)>maxcount)
830 maxcount=virtualcalls.getMethodCount(cd);
832 MethodDescriptor[][] virtualtable=null;
833 virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
835 /* Fill in virtual table */
836 classit=state.getClassSymbolTable().getDescriptorsIterator();
837 while(classit.hasNext()) {
838 ClassDescriptor cd=(ClassDescriptor)classit.next();
839 if(cd.isInterface()) {
842 fillinRow(cd, virtualtable, cd.getId());
845 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
846 Iterator arrayit=state.getArrayIterator();
847 while(arrayit.hasNext()) {
848 TypeDescriptor td=(TypeDescriptor)arrayit.next();
849 int id=state.getArrayNumber(td);
850 fillinRow(objectcd, virtualtable, id+state.numClasses());
853 outvirtual.print("void * virtualtable[]={");
854 boolean needcomma=false;
855 for(int i=0; i<state.numClasses()+state.numArrays(); i++) {
856 for(int j=0; j<maxcount; j++) {
858 outvirtual.print(", ");
859 if (virtualtable[i][j]!=null) {
860 MethodDescriptor md=virtualtable[i][j];
861 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
863 outvirtual.print("0");
867 outvirtual.println("");
869 outvirtual.println("};");
873 protected void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
874 /* Get inherited methods */
875 if (cd.getSuperDesc()!=null)
876 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
878 // TODO add version for normal Java later
879 Iterator it_sifs = cd.getSuperInterfaces();
880 while(it_sifs.hasNext()) {
881 ClassDescriptor superif = (ClassDescriptor)it_sifs.next();
882 fillinRow(superif, virtualtable, rownum);
885 /* Override them with our methods */
886 for(Iterator it=cd.getMethods(); it.hasNext(); ) {
887 MethodDescriptor md=(MethodDescriptor)it.next();
888 if (md.isStatic()||md.getReturnType()==null)
890 int methodnum=virtualcalls.getMethodNumber(md);
891 virtualtable[rownum][methodnum]=md;
895 /** Generate array that contains the sizes of class objects. The
896 * object allocation functions in the runtime use this
899 protected void generateSizeArray(PrintWriter outclassdefs) {
900 outclassdefs.print("extern struct prefetchCountStats * evalPrefetch;\n");
901 generateSizeArrayExtensions(outclassdefs);
903 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
904 cdarray=new ClassDescriptor[state.numClasses()];
906 while(it.hasNext()) {
907 ClassDescriptor cd=(ClassDescriptor)it.next();
908 if(!cd.isInterface()) {
909 cdarray[cd.getId()]=cd;
913 arraytable=new TypeDescriptor[state.numArrays()];
915 Iterator arrayit=state.getArrayIterator();
916 while(arrayit.hasNext()) {
917 TypeDescriptor td=(TypeDescriptor)arrayit.next();
918 int id=state.getArrayNumber(td);
922 /* Print out types */
923 outclassdefs.println("/* ");
924 for(int i=0; i<state.numClasses(); i++) {
925 ClassDescriptor cd=cdarray[i];
927 outclassdefs.println("NULL " + i);
929 outclassdefs.println(cd +" "+i);
933 for(int i=0; i<state.numArrays(); i++) {
934 TypeDescriptor arraytd=arraytable[i];
935 outclassdefs.println(arraytd.toPrettyString() +" "+(i+state.numClasses()));
938 outclassdefs.println("*/");
941 outclassdefs.print("int classsize[]={");
943 boolean needcomma=false;
944 for(int i=0; i<state.numClasses(); i++) {
946 outclassdefs.print(", ");
948 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
950 outclassdefs.print("0");
956 for(int i=0; i<state.numArrays(); i++) {
958 outclassdefs.print(", ");
959 TypeDescriptor tdelement=arraytable[i].dereference();
960 if (tdelement.isArray()||tdelement.isClass()||tdelement.isNull())
961 outclassdefs.print("sizeof(void *)");
963 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
967 outclassdefs.println("};");
969 ClassDescriptor objectclass=typeutil.getClass(TypeUtil.ObjectClass);
971 outclassdefs.print("int typearray[]={");
972 for(int i=0; i<state.numClasses(); i++) {
973 ClassDescriptor cd=cdarray[i];
974 ClassDescriptor supercd=i>0 ? cd.getSuperDesc() : null;
976 outclassdefs.print(", ");
978 outclassdefs.print("-1");
980 outclassdefs.print(supercd.getId());
984 for(int i=0; i<state.numArrays(); i++) {
985 TypeDescriptor arraytd=arraytable[i];
986 ClassDescriptor arraycd=arraytd.getClassDesc();
989 outclassdefs.print(", ");
990 outclassdefs.print(objectclass.getId());
994 ClassDescriptor cd=arraycd.getSuperDesc();
997 TypeDescriptor supertd=new TypeDescriptor(cd);
998 supertd.setArrayCount(arraytd.getArrayCount());
999 type=state.getArrayNumber(supertd);
1001 type+=state.numClasses();
1004 cd=cd.getSuperDesc();
1007 outclassdefs.print(", ");
1008 outclassdefs.print(type);
1012 outclassdefs.println("};");
1017 outclassdefs.print("int typearray2[]={");
1018 for(int i=0; i<state.numArrays(); i++) {
1019 TypeDescriptor arraytd=arraytable[i];
1020 ClassDescriptor arraycd=arraytd.getClassDesc();
1021 if (arraycd==null) {
1023 outclassdefs.print(", ");
1024 outclassdefs.print("-1");
1028 ClassDescriptor cd=arraycd.getSuperDesc();
1029 int level=arraytd.getArrayCount()-1;
1031 for(; level>0; level--) {
1032 TypeDescriptor supertd=new TypeDescriptor(objectclass);
1033 supertd.setArrayCount(level);
1034 type=state.getArrayNumber(supertd);
1036 type+=state.numClasses();
1041 outclassdefs.print(", ");
1042 outclassdefs.print(type);
1046 outclassdefs.println("};");
1049 /** Constructs params and temp objects for each method or task.
1050 * These objects tell the compiler which temps need to be
1053 protected void generateTempStructs(FlatMethod fm) {
1054 MethodDescriptor md=fm.getMethod();
1055 TaskDescriptor task=fm.getTask();
1056 ParamsObject objectparams=md!=null ? new ParamsObject(md,tag++) : new ParamsObject(task, tag++);
1058 paramstable.put(md, objectparams);
1060 paramstable.put(task, objectparams);
1062 for(int i=0; i<fm.numParameters(); i++) {
1063 TempDescriptor temp=fm.getParameter(i);
1064 TypeDescriptor type=temp.getType();
1065 if (type.isPtr()&&((GENERATEPRECISEGC) || (this.state.MULTICOREGC)))
1066 objectparams.addPtr(temp);
1068 objectparams.addPrim(temp);
1071 for(int i=0; i<fm.numTags(); i++) {
1072 TempDescriptor temp=fm.getTag(i);
1073 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
1074 objectparams.addPtr(temp);
1076 objectparams.addPrim(temp);
1079 TempObject objecttemps=md!=null ? new TempObject(objectparams,md,tag++) : new TempObject(objectparams, task, tag++);
1081 tempstable.put(md, objecttemps);
1083 tempstable.put(task, objecttemps);
1085 for(Iterator nodeit=fm.getNodeSet().iterator(); nodeit.hasNext(); ) {
1086 FlatNode fn=(FlatNode)nodeit.next();
1087 TempDescriptor[] writes=fn.writesTemps();
1088 for(int i=0; i<writes.length; i++) {
1089 TempDescriptor temp=writes[i];
1090 TypeDescriptor type=temp.getType();
1091 if (type.isPtr()&&((GENERATEPRECISEGC) || (this.state.MULTICOREGC)))
1092 objecttemps.addPtr(temp);
1094 objecttemps.addPrim(temp);
1099 /** This method outputs the following information about classes
1101 * (1) For classes, what are the locations of pointers.
1102 * (2) For arrays, does the array contain pointers or primitives.
1103 * (3) For classes, does the class contain flags.
1106 protected void generateLayoutStructs(PrintWriter output) {
1107 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
1108 while(it.hasNext()) {
1109 ClassDescriptor cn=(ClassDescriptor)it.next();
1110 output.println("unsigned INTPTR "+cn.getSafeSymbol()+"_pointers[]={");
1111 Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
1113 while(allit.hasNext()) {
1114 FieldDescriptor fd=(FieldDescriptor)allit.next();
1115 TypeDescriptor type=fd.getType();
1119 output.print(count);
1120 allit=cn.getFieldTable().getAllDescriptorsIterator();
1121 while(allit.hasNext()) {
1122 FieldDescriptor fd=(FieldDescriptor)allit.next();
1123 TypeDescriptor type=fd.getType();
1125 output.println(",");
1126 output.print("((unsigned INTPTR)&(((struct "+cn.getSafeSymbol() +" *)0)->"+
1127 fd.getSafeSymbol()+"))");
1130 output.println("};");
1132 output.println("unsigned INTPTR * pointerarray[]={");
1133 boolean needcomma=false;
1134 for(int i=0; i<state.numClasses(); i++) {
1135 ClassDescriptor cn=cdarray[i];
1137 output.println(",");
1140 output.print(cn.getSafeSymbol()+"_pointers");
1142 output.print("NULL");
1146 for(int i=0; i<state.numArrays(); i++) {
1148 output.println(", ");
1149 TypeDescriptor tdelement=arraytable[i].dereference();
1150 if (tdelement.isArray()||tdelement.isClass())
1151 output.print("((unsigned INTPTR *)1)");
1157 output.println("};");
1159 output.println("int hasflags[]={");
1160 for(int i=0; i<state.numClasses(); i++) {
1161 ClassDescriptor cn=cdarray[i];
1163 output.println(", ");
1165 if ((cn != null) && (cn.hasFlags()))
1170 output.println("};");
1174 /** Print out table to give us supertypes */
1175 protected void generateSuperTypeTable(PrintWriter output) {
1176 output.println("int supertypes[]={");
1177 boolean needcomma=false;
1178 for(int i=0; i<state.numClasses(); i++) {
1179 ClassDescriptor cn=cdarray[i];
1181 output.println(",");
1183 if ((cn != null) && (cn.getSuperDesc()!=null)) {
1184 ClassDescriptor cdsuper=cn.getSuperDesc();
1185 output.print(cdsuper.getId());
1189 output.println("};");
1192 /** Force consistent field ordering between inherited classes. */
1194 protected void printClassStruct(ClassDescriptor cn, PrintWriter classdefout, PrintWriter globaldefout) {
1196 ClassDescriptor sp=cn.getSuperDesc();
1198 printClassStruct(sp, classdefout, /*globaldefout*/ null);
1200 SymbolTable sitbl = cn.getSuperInterfaceTable();
1201 Iterator it_sifs = sitbl.getDescriptorsIterator();
1203 while(it_sifs.hasNext()) {
1204 ClassDescriptor si = (ClassDescriptor)it_sifs.next();
1205 printClassStruct(si, classdefout, /*globaldefout*/ null);
1209 if (!fieldorder.containsKey(cn)) {
1210 Vector fields=new Vector();
1211 fieldorder.put(cn,fields);
1213 Vector fieldvec=cn.getFieldVec();
1214 for(int i=0; i<fieldvec.size(); i++) {
1215 FieldDescriptor fd=(FieldDescriptor)fieldvec.get(i);
1217 if((sp != null) && sp.getFieldTable().contains(fd.getSymbol())) {
1220 it_sifs = sitbl.getDescriptorsIterator();
1221 boolean hasprinted = false;
1222 while(it_sifs.hasNext()) {
1223 ClassDescriptor si = (ClassDescriptor)it_sifs.next();
1224 if(si.getFieldTable().contains(fd.getSymbol())) {
1230 // this field has been defined in the super class
1236 if ((sp==null) || (!sp.getFieldTable().contains(fd.getSymbol())))
1241 //Vector fields=(Vector)fieldorder.get(cn);
1243 Vector fields = cn.getFieldVec();
1245 for(int i=0; i<fields.size(); i++) {
1246 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
1247 String fstring = fd.isStatic()?fd.getSafeSymbol():fd.getSymbol();
1248 if(printedfieldstbl.containsKey(fstring)) {
1249 if(!fd.isStatic()) {
1250 int index = printedfieldstbl.get(fstring).intValue();
1252 fd.changeSafeSymbol(index);
1253 printedfieldstbl.put(fstring, index);
1258 printedfieldstbl.put(fstring, 0);
1260 if (state.MGC && fd.getType().isClass()
1261 && fd.getType().getClassDesc().isEnum()) {
1262 classdefout.println(" int " + fd.getSafeSymbol() + ";");
1263 } else if (fd.getType().isClass()||fd.getType().isArray()) {
1264 if ((state.MGC) && (fd.isStatic())) {
1265 // TODO add version for normal Java later
1267 if(globaldefout != null) {
1268 if(fd.isVolatile()) {
1269 globaldefout.println(" volatile struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1271 globaldefout.println(" struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1274 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" ** "+fd.getSafeSymbol()+";");
1275 } else if ((state.MGC) && (fd.isVolatile())) {
1276 // TODO add version for normal Java later
1278 if(globaldefout != null) {
1279 globaldefout.println(" volatile struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1281 classdefout.println(" struct"+fd.getType().getSafeSymbol()+" ** "+fd.getSafeSymbol()+";");
1283 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
1285 } else if ((state.MGC) && (fd.isStatic())) {
1286 // TODO add version for normal Java later
1288 if(globaldefout != null) {
1289 if(fd.isVolatile()) {
1290 globaldefout.println(" volatile "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1292 globaldefout.println(" "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1295 classdefout.println(" "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
1296 } else if ((state.MGC) && (fd.isVolatile())) {
1297 // TODO add version for normal Java later
1299 if(globaldefout != null) {
1300 globaldefout.println(" volatile "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1302 classdefout.println(" "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
1304 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
1309 /* Map flags to integers consistently between inherited
1312 protected void mapFlags(ClassDescriptor cn) {
1313 ClassDescriptor sp=cn.getSuperDesc();
1317 if (!flagorder.containsKey(cn)) {
1318 Hashtable flags=new Hashtable();
1319 flagorder.put(cn,flags);
1321 Hashtable superflags=(Hashtable)flagorder.get(sp);
1322 Iterator superflagit=superflags.keySet().iterator();
1323 while(superflagit.hasNext()) {
1324 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
1325 Integer number=(Integer)superflags.get(fd);
1326 flags.put(fd, number);
1327 if ((number.intValue()+1)>max)
1328 max=number.intValue()+1;
1332 Iterator flagit=cn.getFlags();
1333 while(flagit.hasNext()) {
1334 FlagDescriptor fd=(FlagDescriptor)flagit.next();
1335 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
1336 flags.put(fd, new Integer(max++));
1342 /** This function outputs (1) structures that parameters are
1343 * passed in (when PRECISE GC is enabled) and (2) function
1344 * prototypes for the methods */
1346 protected void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout, PrintWriter globaldefout) {
1347 /* Output class structure */
1348 classdefout.println("struct "+cn.getSafeSymbol()+" {");
1349 classdefout.println(" int type;");
1352 additionalClassObjectFields(classdefout);
1355 if (state.EVENTMONITOR) {
1356 classdefout.println(" int objuid;");
1359 classdefout.println(" pthread_t tid;");
1360 classdefout.println(" void * lockentry;");
1361 classdefout.println(" int lockcount;");
1364 classdefout.println(" int mutex;");
1365 classdefout.println(" int objlock;");
1366 if(state.MULTICOREGC) {
1367 classdefout.println(" int marked;");
1371 classdefout.println(" int flag;");
1372 if((!state.MULTICORE) || (cn.getSymbol().equals("TagDescriptor"))) {
1373 classdefout.println(" void * flagptr;");
1374 } else if (state.MULTICORE) {
1375 classdefout.println(" int version;");
1376 classdefout.println(" int * lock;"); // lock entry for this obj
1377 classdefout.println(" int mutex;");
1378 classdefout.println(" int lockcount;");
1379 if(state.MULTICOREGC) {
1380 classdefout.println(" int marked;");
1383 if (state.OPTIONAL) {
1384 classdefout.println(" int numfses;");
1385 classdefout.println(" int * fses;");
1388 printClassStruct(cn, classdefout, globaldefout);
1389 printedfieldstbl.clear();// = new Hashtable<String, ClassDescriptor>();
1390 classdefout.println("};\n");
1391 generateCallStructsMethods(cn, output, headersout);
1395 protected void generateCallStructsMethods(ClassDescriptor cn, PrintWriter output, PrintWriter headersout) {
1396 for(Iterator methodit=cn.getMethods(); methodit.hasNext(); ) {
1397 MethodDescriptor md=(MethodDescriptor)methodit.next();
1398 generateMethod(cn, md, headersout, output);
1402 protected void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, PrintWriter output) {
1403 /* Output parameter structure */
1404 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1405 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1406 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1407 output.println(" int size;");
1408 output.println(" void * next;");
1409 for(int i=0; i<objectparams.numPointers(); i++) {
1410 TempDescriptor temp=objectparams.getPointer(i);
1411 if(state.MGC && temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1412 output.println(" int " + temp.getSafeSymbol() + ";");
1414 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1417 output.println("};\n");
1421 protected void generateMethod(ClassDescriptor cn, MethodDescriptor md, PrintWriter headersout, PrintWriter output) {
1422 FlatMethod fm=state.getMethodFlat(md);
1423 generateTempStructs(fm);
1425 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1426 TempObject objecttemps=(TempObject) tempstable.get(md);
1428 generateMethodParam(cn, md, output);
1430 /* Output temp structure */
1431 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1432 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1433 output.println(" int size;");
1434 output.println(" void * next;");
1435 for(int i=0; i<objecttemps.numPointers(); i++) {
1436 TempDescriptor temp=objecttemps.getPointer(i);
1437 if (temp.getType().isNull())
1438 output.println(" void * "+temp.getSafeSymbol()+";");
1440 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1442 output.println("};\n");
1445 /********* Output method declaration ***********/
1446 headersout.println("#define D"+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+" 1");
1447 /* First the return type */
1448 if (md.getReturnType()!=null) {
1449 if(state.MGC && md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
1450 headersout.println(" int ");
1451 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
1452 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1454 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1456 //catch the constructor case
1457 headersout.print("void ");
1459 /* Next the method name */
1460 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1461 boolean printcomma=false;
1462 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1463 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1467 /* Output parameter list*/
1468 for(int i=0; i<objectparams.numPrimitives(); i++) {
1469 TempDescriptor temp=objectparams.getPrimitive(i);
1471 headersout.print(", ");
1473 if(state.MGC && temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1474 headersout.print("int " + temp.getSafeSymbol());
1475 } else if (temp.getType().isClass()||temp.getType().isArray())
1476 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1478 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1480 headersout.println(");\n");
1484 /** This function outputs (1) structures that parameters are
1485 * passed in (when PRECISE GC is enabled) and (2) function
1486 * prototypes for the tasks */
1488 protected void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1489 /* Cycle through tasks */
1490 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1492 while(taskit.hasNext()) {
1493 /* Classify parameters */
1494 TaskDescriptor task=(TaskDescriptor)taskit.next();
1495 FlatMethod fm=state.getMethodFlat(task);
1496 generateTempStructs(fm);
1498 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1499 TempObject objecttemps=(TempObject) tempstable.get(task);
1501 /* Output parameter structure */
1502 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1503 output.println("struct "+task.getSafeSymbol()+"_params {");
1504 output.println(" int size;");
1505 output.println(" void * next;");
1506 for(int i=0; i<objectparams.numPointers(); i++) {
1507 TempDescriptor temp=objectparams.getPointer(i);
1508 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1511 output.println("};\n");
1512 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1513 maxtaskparams=objectparams.numPointers()+fm.numTags();
1517 /* Output temp structure */
1518 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1519 output.println("struct "+task.getSafeSymbol()+"_locals {");
1520 output.println(" int size;");
1521 output.println(" void * next;");
1522 for(int i=0; i<objecttemps.numPointers(); i++) {
1523 TempDescriptor temp=objecttemps.getPointer(i);
1524 if (temp.getType().isNull())
1525 output.println(" void * "+temp.getSafeSymbol()+";");
1526 else if(temp.getType().isTag())
1527 output.println(" struct "+
1528 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1530 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1532 output.println("};\n");
1535 /* Output task declaration */
1536 headersout.print("void " + task.getSafeSymbol()+"(");
1538 boolean printcomma=false;
1539 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1540 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1542 headersout.print("void * parameterarray[]");
1543 headersout.println(");\n");
1547 protected void generateFlatMethod(FlatMethod fm, PrintWriter output) {
1548 if (State.PRINTFLAT)
1549 System.out.println(fm.printMethod());
1550 MethodDescriptor md=fm.getMethod();
1551 TaskDescriptor task=fm.getTask();
1552 ClassDescriptor cn=md!=null ? md.getClassDesc() : null;
1553 ParamsObject objectparams=(ParamsObject)paramstable.get(md!=null ? md : task);
1554 generateHeader(fm, md!=null ? md : task,output);
1555 TempObject objecttemp=(TempObject) tempstable.get(md!=null ? md : task);
1557 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1559 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1561 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
1562 output.print(objecttemp.numPointers()+",");
1563 output.print(paramsprefix);
1564 for(int j=0; j<objecttemp.numPointers(); j++)
1565 output.print(", NULL");
1566 output.println("};");
1569 for(int i=0; i<objecttemp.numPrimitives(); i++) {
1570 TempDescriptor td=objecttemp.getPrimitive(i);
1571 TypeDescriptor type=td.getType();
1572 if (type.isNull() && !type.isArray())
1573 output.println(" void * "+td.getSafeSymbol()+";");
1574 else if (state.MGC && type.isClass() && type.getClassDesc().isEnum()) {
1575 output.println(" int " + td.getSafeSymbol() + ";");
1576 } else if (type.isClass()||type.isArray())
1577 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1579 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1582 additionalCodeAtTopFlatMethodBody(output, fm);
1584 /* Check to see if we need to do a GC if this is a
1585 * multi-threaded program...*/
1587 if (((state.OOOJAVA||state.THREAD)&&GENERATEPRECISEGC)
1588 || this.state.MULTICOREGC) {
1589 //Don't bother if we aren't in recursive methods...The loops case will catch it
1590 if (callgraph.getAllMethods(md).contains(md)) {
1591 if (this.state.MULTICOREGC) {
1592 output.println("if(gcflag) gc("+localsprefixaddr+");");
1594 output.println("if (unlikely(needtocollect)) checkcollect("+localsprefixaddr+");");
1600 // TODO add version for normal Java later
1601 if(fm.getMethod().isStaticBlock()) {
1602 // a static block, check if it has been executed
1603 output.println(" if(global_defs_p->" + cn.getSafeSymbol()+"static_block_exe_flag != 0) {");
1604 output.println(" return;");
1605 output.println(" }");
1608 if((!fm.getMethod().isStaticBlock()) && (fm.getMethod().getReturnType() == null) && (cn != null)) {
1609 // is a constructor, check and output initialization of the static fields
1610 // here does not initialize the static fields of the class, instead it
1611 // redirect the corresponding fields in the object to the global_defs_p
1612 Vector fields=cn.getFieldVec();
1614 for(int i=0; i<fields.size(); i++) {
1615 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
1618 output.println(generateTemp(fm,fm.getParameter(0))+"->"+fd.getSafeSymbol()+"=&(global_defs_p->"+fd.getSafeSymbol()+");");
1624 generateCode(fm.getNext(0), fm, null, output);
1626 output.println("}\n\n");
1629 protected void generateCode(FlatNode first,
1631 Set<FlatNode> stopset,
1632 PrintWriter output) {
1634 /* Assign labels to FlatNode's if necessary.*/
1636 Hashtable<FlatNode, Integer> nodetolabel;
1638 nodetolabel=assignLabels(first, stopset);
1640 Set<FlatNode> storeset=null;
1641 HashSet<FlatNode> genset=null;
1642 HashSet<FlatNode> refset=null;
1643 Set<FlatNode> unionset=null;
1645 /* Do the actual code generation */
1646 FlatNode current_node=null;
1647 HashSet tovisit=new HashSet();
1648 HashSet visited=new HashSet();
1650 while(current_node!=null||!tovisit.isEmpty()) {
1651 if (current_node==null) {
1652 current_node=(FlatNode)tovisit.iterator().next();
1653 tovisit.remove(current_node);
1654 } else if (tovisit.contains(current_node)) {
1655 tovisit.remove(current_node);
1657 visited.add(current_node);
1658 if (nodetolabel.containsKey(current_node)) {
1659 output.println("L"+nodetolabel.get(current_node)+":");
1661 if (state.INSTRUCTIONFAILURE) {
1663 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
1665 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
1667 if (current_node.numNext()==0||stopset!=null&&stopset.contains(current_node)) {
1669 generateFlatNode(fm, current_node, output);
1671 if (state.OOOJAVA && stopset!=null) {
1672 assert first.getPrev(0) instanceof FlatSESEEnterNode;
1673 assert current_node instanceof FlatSESEExitNode;
1674 FlatSESEEnterNode fsen = (FlatSESEEnterNode) first.getPrev(0);
1675 FlatSESEExitNode fsxn = (FlatSESEExitNode) current_node;
1676 assert fsen.getFlatExit().equals(fsxn);
1677 assert fsxn.getFlatEnter().equals(fsen);
1679 if (current_node.kind()!=FKind.FlatReturnNode) {
1681 // TODO add version for normal Java later
1682 if((fm.getMethod() != null) && (fm.getMethod().isStaticBlock())) {
1683 // a static block, check if it has been executed
1684 output.println(" global_defs_p->" + fm.getMethod().getClassDesc().getSafeSymbol()+"static_block_exe_flag = 1;");
1688 output.println(" return;");
1691 } else if(current_node.numNext()==1) {
1693 if (state.OOOJAVA &&
1694 current_node.kind()==FKind.FlatSESEEnterNode) {
1695 FlatSESEEnterNode fsen = (FlatSESEEnterNode)current_node;
1696 generateFlatNode(fm, current_node, output);
1697 nextnode=fsen.getFlatExit().getNext(0);
1700 generateFlatNode(fm, current_node, output);
1701 nextnode=current_node.getNext(0);
1703 if (visited.contains(nextnode)) {
1704 output.println("goto L"+nodetolabel.get(nextnode)+";");
1707 current_node=nextnode;
1708 } else if (current_node.numNext()==2) {
1711 generateFlatCondBranch(fm, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
1712 if (!visited.contains(current_node.getNext(1)))
1713 tovisit.add(current_node.getNext(1));
1714 if (visited.contains(current_node.getNext(0))) {
1715 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
1718 current_node=current_node.getNext(0);
1719 } else throw new Error();
1723 protected Hashtable<FlatNode, Integer> assignLabels(FlatNode first, Set<FlatNode> lastset) {
1724 HashSet tovisit=new HashSet();
1725 HashSet visited=new HashSet();
1727 Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
1730 /*Assign labels first. A node needs a label if the previous
1731 * node has two exits or this node is a join point. */
1733 while(!tovisit.isEmpty()) {
1734 FlatNode fn=(FlatNode)tovisit.iterator().next();
1739 if(lastset!=null&&lastset.contains(fn)) {
1740 // if last is not null and matches, don't go
1741 // any further for assigning labels
1745 for(int i=0; i<fn.numNext(); i++) {
1746 FlatNode nn=fn.getNext(i);
1749 //1) Edge >1 of node
1750 nodetolabel.put(nn,new Integer(labelindex++));
1752 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1756 nodetolabel.put(nn,new Integer(labelindex++));
1763 /** Generate text string that corresponds to the TempDescriptor td. */
1764 protected String generateTemp(FlatMethod fm, TempDescriptor td) {
1765 MethodDescriptor md=fm.getMethod();
1766 TaskDescriptor task=fm.getTask();
1767 TempObject objecttemps=(TempObject) tempstable.get(md!=null ? md : task);
1769 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1770 return td.getSafeSymbol();
1773 if (objecttemps.isLocalPtr(td)) {
1774 return localsprefixderef+td.getSafeSymbol();
1777 if (objecttemps.isParamPtr(td)) {
1778 return paramsprefix+"->"+td.getSafeSymbol();
1786 protected void generateFlatNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
1787 additionalCodePreNode(fm, fn, output);
1791 case FKind.FlatAtomicEnterNode:
1792 generateFlatAtomicEnterNode(fm, (FlatAtomicEnterNode) fn, output);
1795 case FKind.FlatAtomicExitNode:
1796 generateFlatAtomicExitNode(fm, (FlatAtomicExitNode) fn, output);
1799 case FKind.FlatInstanceOfNode:
1800 generateFlatInstanceOfNode(fm, (FlatInstanceOfNode)fn, output);
1803 case FKind.FlatSESEEnterNode:
1804 generateFlatSESEEnterNode(fm, (FlatSESEEnterNode)fn, output);
1807 case FKind.FlatSESEExitNode:
1808 generateFlatSESEExitNode(fm, (FlatSESEExitNode)fn, output);
1811 case FKind.FlatWriteDynamicVarNode:
1812 generateFlatWriteDynamicVarNode(fm, (FlatWriteDynamicVarNode)fn, output);
1815 case FKind.FlatGlobalConvNode:
1816 generateFlatGlobalConvNode(fm, (FlatGlobalConvNode) fn, output);
1819 case FKind.FlatTagDeclaration:
1820 generateFlatTagDeclaration(fm, (FlatTagDeclaration) fn,output);
1823 case FKind.FlatCall:
1824 generateFlatCall(fm, (FlatCall) fn,output);
1827 case FKind.FlatFieldNode:
1828 generateFlatFieldNode(fm, (FlatFieldNode) fn,output);
1831 case FKind.FlatElementNode:
1832 generateFlatElementNode(fm, (FlatElementNode) fn,output);
1835 case FKind.FlatSetElementNode:
1836 generateFlatSetElementNode(fm, (FlatSetElementNode) fn,output);
1839 case FKind.FlatSetFieldNode:
1840 generateFlatSetFieldNode(fm, (FlatSetFieldNode) fn,output);
1844 generateFlatNew(fm, (FlatNew) fn,output);
1847 case FKind.FlatOpNode:
1848 generateFlatOpNode(fm, (FlatOpNode) fn,output);
1851 case FKind.FlatCastNode:
1852 generateFlatCastNode(fm, (FlatCastNode) fn,output);
1855 case FKind.FlatLiteralNode:
1856 generateFlatLiteralNode(fm, (FlatLiteralNode) fn,output);
1859 case FKind.FlatReturnNode:
1860 generateFlatReturnNode(fm, (FlatReturnNode) fn,output);
1864 output.println("/* nop */");
1867 case FKind.FlatGenReachNode:
1868 // this node is just for generating a reach graph
1869 // in disjointness analysis at a particular program point
1872 case FKind.FlatExit:
1873 output.println("/* exit */");
1876 case FKind.FlatBackEdge:
1877 generateFlatBackEdge(fm, (FlatBackEdge)fn, output);
1880 case FKind.FlatCheckNode:
1881 generateFlatCheckNode(fm, (FlatCheckNode) fn, output);
1884 case FKind.FlatFlagActionNode:
1885 generateFlatFlagActionNode(fm, (FlatFlagActionNode) fn, output);
1888 case FKind.FlatPrefetchNode:
1889 generateFlatPrefetchNode(fm, (FlatPrefetchNode) fn, output);
1892 case FKind.FlatOffsetNode:
1893 generateFlatOffsetNode(fm, (FlatOffsetNode)fn, output);
1900 additionalCodePostNode(fm, fn, output);
1903 public void generateFlatBackEdge(FlatMethod fm, FlatBackEdge fn, PrintWriter output) {
1904 if (((state.OOOJAVA||state.THREAD)&&GENERATEPRECISEGC)
1905 || (this.state.MULTICOREGC)) {
1906 if(this.state.MULTICOREGC) {
1907 output.println("if (gcflag) gc("+localsprefixaddr+");");
1909 output.println("if (unlikely(needtocollect)) checkcollect("+localsprefixaddr+");");
1912 output.println("/* nop */");
1915 public void generateFlatOffsetNode(FlatMethod fm, FlatOffsetNode fofn, PrintWriter output) {
1916 output.println("/* FlatOffsetNode */");
1917 FieldDescriptor fd=fofn.getField();
1918 output.println(generateTemp(fm, fofn.getDst())+ " = (short)(int) (&((struct "+fofn.getClassType().getSafeSymbol() +" *)0)->"+
1919 fd.getSafeSymbol()+");");
1920 output.println("/* offset */");
1923 public void generateFlatPrefetchNode(FlatMethod fm, FlatPrefetchNode fpn, PrintWriter output) {
1926 public void generateFlatGlobalConvNode(FlatMethod fm, FlatGlobalConvNode fgcn, PrintWriter output) {
1929 public void generateFlatInstanceOfNode(FlatMethod fm, FlatInstanceOfNode fion, PrintWriter output) {
1931 if (fion.getType().isArray()) {
1932 type=state.getArrayNumber(fion.getType())+state.numClasses();
1934 type=fion.getType().getClassDesc().getId();
1937 if (fion.getType().getSymbol().equals(TypeUtil.ObjectClass))
1938 output.println(generateTemp(fm, fion.getDst())+"=1;");
1940 output.println(generateTemp(fm, fion.getDst())+"=instanceof("+generateTemp(fm,fion.getSrc())+","+type+");");
1943 public void generateFlatAtomicEnterNode(FlatMethod fm, FlatAtomicEnterNode faen, PrintWriter output) {
1946 public void generateFlatAtomicExitNode(FlatMethod fm, FlatAtomicExitNode faen, PrintWriter output) {
1949 public void generateFlatSESEEnterNode(FlatMethod fm,
1950 FlatSESEEnterNode fsen,
1951 PrintWriter output) {
1952 // if OOOJAVA flag is off, okay that SESE nodes are in IR graph,
1953 // just skip over them and code generates exactly the same
1956 public void generateFlatSESEExitNode(FlatMethod fm,
1957 FlatSESEExitNode fsexn,
1958 PrintWriter output) {
1959 // if OOOJAVA flag is off, okay that SESE nodes are in IR graph,
1960 // just skip over them and code generates exactly the same
1963 public void generateFlatWriteDynamicVarNode(FlatMethod fm,
1964 FlatWriteDynamicVarNode fwdvn,
1965 PrintWriter output) {
1969 protected void generateFlatCheckNode(FlatMethod fm, FlatCheckNode fcn, PrintWriter output) {
1970 if (state.CONSCHECK) {
1971 String specname=fcn.getSpec();
1972 String varname="repairstate___";
1973 output.println("{");
1974 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1976 TempDescriptor[] temps=fcn.getTemps();
1977 String[] vars=fcn.getVars();
1978 for(int i=0; i<temps.length; i++) {
1979 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i])+";");
1982 output.println("if (doanalysis"+specname+"("+varname+")) {");
1983 output.println("free"+specname+"_state("+varname+");");
1984 output.println("} else {");
1985 output.println("/* Bad invariant */");
1986 output.println("free"+specname+"_state("+varname+");");
1987 output.println("abort_task();");
1988 output.println("}");
1989 output.println("}");
1993 protected void generateFlatCall(FlatMethod fm, FlatCall fc, PrintWriter output) {
1994 MethodDescriptor md=fc.getMethod();
1995 ParamsObject objectparams=(ParamsObject)paramstable.get(md);
1996 ClassDescriptor cn=md.getClassDesc();
1998 // if the called method is a static block or a static method or a constructor
1999 // need to check if it can be invoked inside some static block
2001 // TODO add version for normal Java later
2002 if((md.isStatic() || md.isStaticBlock() || md.isConstructor()) &&
2003 ((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic()))) {
2004 if(!md.isInvokedByStatic()) {
2005 System.err.println("Error: a method that is invoked inside a static block is not tagged!");
2007 // is a static block or is invoked in some static block
2008 ClassDescriptor cd = fm.getMethod().getClassDesc();
2010 // the same class, do nothing
2011 // TODO may want to invoke static field initialization here
2013 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2014 // need to check if the class' static fields have been initialized and/or
2015 // its static blocks have been executed
2016 output.println("#ifdef MGC_STATIC_INIT_CHECK");
2017 output.println("if(global_defs_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2018 if(cn.getNumStaticBlocks() != 0) {
2019 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2020 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2022 output.println(" global_defs_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2024 output.println("}");
2025 output.println("#endif // MGC_STATIC_INIT_CHECK");
2029 if((md.getSymbol().equals("MonitorEnter") || md.getSymbol().equals("MonitorExit")) && fc.getThis().getSymbol().equals("classobj")) {
2030 // call MonitorEnter/MonitorExit on a class obj
2031 output.println(" " + cn.getSafeSymbol()+md.getSafeSymbol()+"_"
2032 +md.getSafeMethodDescriptor() + "((struct ___Object___*)(&global_defs_p->"
2033 + fc.getThis().getType().getClassDesc().getSafeSymbol() +"classobj));");
2038 output.println("{");
2039 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2040 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
2041 output.print(objectparams.numPointers());
2042 output.print(", "+localsprefixaddr);
2043 if (md.getThis()!=null) {
2045 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis()));
2047 if (fc.getThis()!=null&&md.getThis()==null) {
2048 System.out.println("WARNING!!!!!!!!!!!!");
2049 System.out.println("Source code calls static method "+md+" on an object in "+fm.getMethod()+"!");
2053 for(int i=0; i<fc.numArgs(); i++) {
2054 Descriptor var=md.getParameter(i);
2055 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
2056 if (objectparams.isParamPtr(paramtemp)) {
2057 TempDescriptor targ=fc.getArg(i);
2059 TypeDescriptor td=md.getParamType(i);
2061 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ));
2063 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ));
2066 output.println("};");
2071 if (fc.getReturnTemp()!=null)
2072 output.print(generateTemp(fm,fc.getReturnTemp())+"=");
2074 /* Do we need to do virtual dispatch? */
2075 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
2077 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
2081 if (state.MGC && md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
2082 output.print("int ");
2083 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
2084 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2086 output.print(md.getReturnType().getSafeSymbol()+" ");
2087 output.print("(*)(");
2089 boolean printcomma=false;
2090 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2091 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
2095 for(int i=0; i<objectparams.numPrimitives(); i++) {
2096 TempDescriptor temp=objectparams.getPrimitive(i);
2100 if (state.MGC && temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
2101 output.print("int ");
2102 } else if (temp.getType().isClass()||temp.getType().isArray())
2103 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
2105 output.print(temp.getType().getSafeSymbol());
2109 output.print("))virtualtable["+generateTemp(fm,fc.getThis())+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
2113 boolean needcomma=false;
2114 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2115 output.print("&__parameterlist__");
2119 if (!GENERATEPRECISEGC && !this.state.MULTICOREGC) {
2120 if (fc.getThis()!=null) {
2121 TypeDescriptor ptd=null;
2122 if(md.getThis() != null) {
2123 ptd = md.getThis().getType();
2125 ptd = fc.getThis().getType();
2129 if(state.MGC && ptd.isClass() && ptd.getClassDesc().isEnum()) {
2131 } else if (ptd.isClass()&&!ptd.isArray())
2132 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
2133 output.print(generateTemp(fm,fc.getThis()));
2138 for(int i=0; i<fc.numArgs(); i++) {
2139 Descriptor var=md.getParameter(i);
2140 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
2141 if (objectparams.isParamPrim(paramtemp)) {
2142 TempDescriptor targ=fc.getArg(i);
2146 TypeDescriptor ptd=md.getParamType(i);
2147 if (state.MGC && ptd.isClass() && ptd.getClassDesc().isEnum()) {
2149 } else if (ptd.isClass()&&!ptd.isArray())
2150 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
2151 output.print(generateTemp(fm, targ));
2155 output.println(");");
2156 output.println(" }");
2159 protected boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
2160 Set subclasses=typeutil.getSubClasses(thiscd);
2161 if (subclasses==null)
2163 for(Iterator classit=subclasses.iterator(); classit.hasNext(); ) {
2164 ClassDescriptor cd=(ClassDescriptor)classit.next();
2165 Set possiblematches=cd.getMethodTable().getSetFromSameScope(md.getSymbol());
2166 for(Iterator matchit=possiblematches.iterator(); matchit.hasNext(); ) {
2167 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
2168 if (md.matches(matchmd))
2175 protected void generateFlatFieldNode(FlatMethod fm, FlatFieldNode ffn, PrintWriter output) {
2177 // TODO add version for normal Java later
2178 if(ffn.getField().isStatic()) {
2180 if((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic())) {
2181 // is a static block or is invoked in some static block
2182 ClassDescriptor cd = fm.getMethod().getClassDesc();
2183 ClassDescriptor cn = ffn.getSrc().getType().getClassDesc();
2185 // the same class, do nothing
2186 // TODO may want to invoke static field initialization here
2188 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2189 // need to check if the class' static fields have been initialized and/or
2190 // its static blocks have been executed
2191 output.println("#ifdef MGC_STATIC_INIT_CHECK");
2192 output.println("if(global_defs_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2193 if(cn.getNumStaticBlocks() != 0) {
2194 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2195 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2197 output.println(" global_defs_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2199 output.println("}");
2200 output.println("#endif // MGC_STATIC_INIT_CHECK");
2204 // redirect to the global_defs_p structure
2205 if((ffn.getField().isStatic()) || (ffn.getSrc().getType().isClassNameRef())) {
2206 // reference to the static field with Class name
2207 output.println(generateTemp(fm, ffn.getDst())+"=global_defs_p->"+ffn.getField().getSafeSymbol()+";");
2209 output.println(generateTemp(fm, ffn.getDst())+"=*"+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
2211 } else if (ffn.getField().isEnum()) {
2212 // an Enum value, directly replace the field access as int
2213 output.println(generateTemp(fm, ffn.getDst()) + "=" + ffn.getField().enumValue() + ";");
2215 output.println(generateTemp(fm, ffn.getDst())+"="+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
2218 output.println(generateTemp(fm, ffn.getDst())+"="+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
2223 protected void generateFlatSetFieldNode(FlatMethod fm, FlatSetFieldNode fsfn, PrintWriter output) {
2224 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
2225 throw new Error("Can't set array length");
2226 if (state.FASTCHECK) {
2227 String dst=generateTemp(fm, fsfn.getDst());
2228 output.println("if(!"+dst+"->"+localcopystr+") {");
2229 /* Link object into list */
2230 if (GENERATEPRECISEGC || this.state.MULTICOREGC)
2231 output.println("COPY_OBJ((struct garbagelist *)"+localsprefixaddr+",(struct ___Object___ *)"+dst+");");
2233 output.println("COPY_OBJ("+dst+");");
2234 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2235 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2236 output.println("}");
2239 // TODO add version for normal Java later
2240 if(fsfn.getField().isStatic()) {
2242 if((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic())) {
2243 // is a static block or is invoked in some static block
2244 ClassDescriptor cd = fm.getMethod().getClassDesc();
2245 ClassDescriptor cn = fsfn.getDst().getType().getClassDesc();
2247 // the same class, do nothing
2248 // TODO may want to invoke static field initialization here
2250 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2251 // need to check if the class' static fields have been initialized and/or
2252 // its static blocks have been executed
2253 output.println("#ifdef MGC_STATIC_INIT_CHECK");
2254 output.println("if(global_defs_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2255 if(cn.getNumStaticFields() != 0) {
2256 // TODO add static field initialization here
2258 if(cn.getNumStaticBlocks() != 0) {
2259 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2260 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2262 output.println(" global_defs_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2264 output.println("}");
2265 output.println("#endif // MGC_STATIC_INIT_CHECK");
2269 // redirect to the global_defs_p structure
2270 if(fsfn.getDst().getType().isClassNameRef()) {
2271 // reference to the static field with Class name
2272 output.println("global_defs_p->" +
2273 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2275 output.println("*"+generateTemp(fm, fsfn.getDst())+"->"+
2276 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2279 output.println(generateTemp(fm, fsfn.getDst())+"->"+
2280 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2283 output.println(generateTemp(fm, fsfn.getDst())+"->"+
2284 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2288 protected void generateFlatElementNode(FlatMethod fm, FlatElementNode fen, PrintWriter output) {
2289 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
2292 if (state.MGC && elementtype.isClass() && elementtype.getClassDesc().isEnum()) {
2294 } else if (elementtype.isArray()||elementtype.isClass())
2297 type=elementtype.getSafeSymbol()+" ";
2299 if (this.state.ARRAYBOUNDARYCHECK && fen.needsBoundsCheck()) {
2300 output.println("if (unlikely(((unsigned int)"+generateTemp(fm, fen.getIndex())+") >= "+generateTemp(fm,fen.getSrc()) + "->___length___))");
2301 output.println("failedboundschk();");
2303 output.println(generateTemp(fm, fen.getDst())+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc())+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex())+"];");
2306 protected void generateFlatSetElementNode(FlatMethod fm, FlatSetElementNode fsen, PrintWriter output) {
2307 //TODO: need dynamic check to make sure this assignment is actually legal
2308 //Because Object[] could actually be something more specific...ie. Integer[]
2310 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2313 if (state.MGC && elementtype.isClass() && elementtype.getClassDesc().isEnum()) {
2315 } else if (elementtype.isArray()||elementtype.isClass() || (state.MGC && elementtype.isNull()))
2318 type=elementtype.getSafeSymbol()+" ";
2320 if (this.state.ARRAYBOUNDARYCHECK && fsen.needsBoundsCheck()) {
2321 output.println("if (unlikely(((unsigned int)"+generateTemp(fm, fsen.getIndex())+") >= "+generateTemp(fm,fsen.getDst()) + "->___length___))");
2322 output.println("failedboundschk();");
2324 if (state.FASTCHECK) {
2325 String dst=generateTemp(fm, fsen.getDst());
2326 output.println("if(!"+dst+"->"+localcopystr+") {");
2327 /* Link object into list */
2328 if (GENERATEPRECISEGC || this.state.MULTICOREGC)
2329 output.println("COPY_OBJ((struct garbagelist *)"+localsprefixaddr+",(struct ___Object___ *)"+dst+");");
2331 output.println("COPY_OBJ("+dst+");");
2332 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2333 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2334 output.println("}");
2336 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst())+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex())+"]="+generateTemp(fm,fsen.getSrc())+";");
2340 protected void generateFlatNew(FlatMethod fm, FlatNew fn, PrintWriter output) {
2341 if (fn.getType().isArray()) {
2342 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2343 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2344 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+localsprefixaddr+", "+arrayid+", "+generateTemp(fm, fn.getSize())+");");
2346 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize())+");");
2349 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2350 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+localsprefixaddr+", "+fn.getType().getClassDesc().getId()+");");
2352 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2355 if (state.FASTCHECK) {
2356 String dst=generateTemp(fm,fn.getDst());
2357 output.println(dst+"->___localcopy___=(struct ___Object___*)1;");
2358 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2359 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2363 protected void generateFlatTagDeclaration(FlatMethod fm, FlatTagDeclaration fn, PrintWriter output) {
2364 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2365 output.println(generateTemp(fm,fn.getDst())+"=allocate_tag("+localsprefixaddr+", "+state.getTagId(fn.getType())+");");
2367 output.println(generateTemp(fm,fn.getDst())+"=allocate_tag("+state.getTagId(fn.getType())+");");
2371 protected void generateFlatOpNode(FlatMethod fm, FlatOpNode fon, PrintWriter output) {
2372 if (fon.getRight()!=null) {
2373 if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2374 if (fon.getLeft().getType().isLong())
2375 output.println(generateTemp(fm, fon.getDest())+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft())+")>>"+generateTemp(fm,fon.getRight())+";");
2377 output.println(generateTemp(fm, fon.getDest())+" = ((unsigned int)"+generateTemp(fm, fon.getLeft())+")>>"+generateTemp(fm,fon.getRight())+";");
2380 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+fon.getOp().toString()+generateTemp(fm,fon.getRight())+";");
2381 } else if (fon.getOp().getOp()==Operation.ASSIGN)
2382 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
2383 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2384 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
2385 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2386 output.println(generateTemp(fm, fon.getDest())+" = -"+generateTemp(fm, fon.getLeft())+";");
2387 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2388 output.println(generateTemp(fm, fon.getDest())+" = !"+generateTemp(fm, fon.getLeft())+";");
2389 else if (fon.getOp().getOp()==Operation.COMP)
2390 output.println(generateTemp(fm, fon.getDest())+" = ~"+generateTemp(fm, fon.getLeft())+";");
2391 else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2392 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+"->fses==NULL;");
2394 output.println(generateTemp(fm, fon.getDest())+fon.getOp().toString()+generateTemp(fm, fon.getLeft())+";");
2397 protected void generateFlatCastNode(FlatMethod fm, FlatCastNode fcn, PrintWriter output) {
2398 /* TODO: Do type check here */
2399 if (fcn.getType().isArray()) {
2400 output.println(generateTemp(fm,fcn.getDst())+"=(struct ArrayObject *)"+generateTemp(fm,fcn.getSrc())+";");
2401 } else if (state.MGC && fcn.getType().isClass() && fcn.getType().getClassDesc().isEnum()) {
2402 output.println(generateTemp(fm,fcn.getDst())+"=(int)"+generateTemp(fm,fcn.getSrc())+";");
2403 } else if (fcn.getType().isClass())
2404 output.println(generateTemp(fm,fcn.getDst())+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc())+";");
2406 output.println(generateTemp(fm,fcn.getDst())+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc())+";");
2409 protected void generateFlatLiteralNode(FlatMethod fm, FlatLiteralNode fln, PrintWriter output) {
2410 if (fln.getValue()==null)
2411 output.println(generateTemp(fm, fln.getDst())+"=0;");
2412 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2413 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2414 output.println(generateTemp(fm, fln.getDst())+"=NewString("+localsprefixaddr+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2416 output.println(generateTemp(fm, fln.getDst())+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2418 } else if (fln.getType().isBoolean()) {
2419 if (((Boolean)fln.getValue()).booleanValue())
2420 output.println(generateTemp(fm, fln.getDst())+"=1;");
2422 output.println(generateTemp(fm, fln.getDst())+"=0;");
2423 } else if (fln.getType().isChar()) {
2424 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2425 output.println(generateTemp(fm, fln.getDst())+"='"+st+"';");
2426 } else if (fln.getType().isLong()) {
2427 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+"LL;");
2429 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+";");
2432 protected void generateFlatReturnNode(FlatMethod fm, FlatReturnNode frn, PrintWriter output) {
2434 // TODO add version for normal Java later
2435 if((fm.getMethod() != null) && (fm.getMethod().isStaticBlock())) {
2436 // a static block, check if it has been executed
2437 output.println(" global_defs_p->" + fm.getMethod().getClassDesc().getSafeSymbol()+"static_block_exe_flag = 1;");
2441 if (frn.getReturnTemp()!=null) {
2442 if (frn.getReturnTemp().getType().isPtr())
2443 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp())+";");
2445 output.println("return "+generateTemp(fm, frn.getReturnTemp())+";");
2447 output.println("return;");
2451 protected void generateFlatCondBranch(FlatMethod fm, FlatCondBranch fcb, String label, PrintWriter output) {
2452 output.println("if (!"+generateTemp(fm, fcb.getTest())+") goto "+label+";");
2455 /** This method generates header information for the method or
2456 * task referenced by the Descriptor des. */
2457 protected void generateHeader(FlatMethod fm, Descriptor des, PrintWriter output) {
2458 generateHeader(fm, des, output, false);
2461 protected void generateHeader(FlatMethod fm, Descriptor des, PrintWriter output, boolean addSESErecord) {
2463 ParamsObject objectparams=(ParamsObject)paramstable.get(des);
2464 MethodDescriptor md=null;
2465 TaskDescriptor task=null;
2466 if (des instanceof MethodDescriptor)
2467 md=(MethodDescriptor) des;
2469 task=(TaskDescriptor) des;
2471 ClassDescriptor cn=md!=null ? md.getClassDesc() : null;
2473 if (md!=null&&md.getReturnType()!=null) {
2474 if (state.MGC && md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
2475 output.print("int ");
2476 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
2477 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2479 output.print(md.getReturnType().getSafeSymbol()+" ");
2481 //catch the constructor case
2482 output.print("void ");
2484 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2486 output.print(task.getSafeSymbol()+"(");
2488 boolean printcomma=false;
2489 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2491 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2493 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2499 for(int i=0; i<objectparams.numPrimitives(); i++) {
2500 TempDescriptor temp=objectparams.getPrimitive(i);
2504 if(state.MGC && temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
2505 output.print("int " + temp.getSafeSymbol());
2506 } else if (temp.getType().isClass()||temp.getType().isArray())
2507 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2509 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2511 output.println(") {");
2512 } else if (!GENERATEPRECISEGC && !this.state.MULTICOREGC) {
2513 /* Imprecise Task */
2514 output.println("void * parameterarray[]) {");
2515 /* Unpack variables */
2516 for(int i=0; i<objectparams.numPrimitives(); i++) {
2517 TempDescriptor temp=objectparams.getPrimitive(i);
2518 if(state.MGC && temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
2519 output.print("int " + temp.getSafeSymbol() + "=parameterarray["+i+"];");
2521 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2524 for(int i=0; i<fm.numTags(); i++) {
2525 TempDescriptor temp=fm.getTag(i);
2526 int offset=i+objectparams.numPrimitives();
2527 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2530 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2531 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2532 } else output.println(") {");
2535 public void generateFlatFlagActionNode(FlatMethod fm, FlatFlagActionNode ffan, PrintWriter output) {
2536 output.println("/* FlatFlagActionNode */");
2539 /* Process tag changes */
2540 Relation tagsettable=new Relation();
2541 Relation tagcleartable=new Relation();
2543 Iterator tagsit=ffan.getTempTagPairs();
2544 while (tagsit.hasNext()) {
2545 TempTagPair ttp=(TempTagPair) tagsit.next();
2546 TempDescriptor objtmp=ttp.getTemp();
2547 TagDescriptor tag=ttp.getTag();
2548 TempDescriptor tagtmp=ttp.getTagTemp();
2549 boolean tagstatus=ffan.getTagChange(ttp);
2551 tagsettable.put(objtmp, tagtmp);
2553 tagcleartable.put(objtmp, tagtmp);
2558 Hashtable flagandtable=new Hashtable();
2559 Hashtable flagortable=new Hashtable();
2561 /* Process flag changes */
2562 Iterator flagsit=ffan.getTempFlagPairs();
2563 while(flagsit.hasNext()) {
2564 TempFlagPair tfp=(TempFlagPair)flagsit.next();
2565 TempDescriptor temp=tfp.getTemp();
2566 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2567 FlagDescriptor flag=tfp.getFlag();
2569 //Newly allocate objects that don't set any flags case
2570 if (flagortable.containsKey(temp)) {
2574 flagortable.put(temp,new Integer(mask));
2576 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2577 boolean flagstatus=ffan.getFlagChange(tfp);
2580 if (flagortable.containsKey(temp)) {
2581 mask=((Integer)flagortable.get(temp)).intValue();
2584 flagortable.put(temp,new Integer(mask));
2586 int mask=0xFFFFFFFF;
2587 if (flagandtable.containsKey(temp)) {
2588 mask=((Integer)flagandtable.get(temp)).intValue();
2590 mask&=(0xFFFFFFFF^flagid);
2591 flagandtable.put(temp,new Integer(mask));
2597 HashSet flagtagset=new HashSet();
2598 flagtagset.addAll(flagortable.keySet());
2599 flagtagset.addAll(flagandtable.keySet());
2600 flagtagset.addAll(tagsettable.keySet());
2601 flagtagset.addAll(tagcleartable.keySet());
2603 Iterator ftit=flagtagset.iterator();
2604 while(ftit.hasNext()) {
2605 TempDescriptor temp=(TempDescriptor)ftit.next();
2608 Set tagtmps=tagcleartable.get(temp);
2609 if (tagtmps!=null) {
2610 Iterator tagit=tagtmps.iterator();
2611 while(tagit.hasNext()) {
2612 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2613 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
2614 output.println("tagclear("+localsprefixaddr+", (struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
2616 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
2620 tagtmps=tagsettable.get(temp);
2621 if (tagtmps!=null) {
2622 Iterator tagit=tagtmps.iterator();
2623 while(tagit.hasNext()) {
2624 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2625 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
2626 output.println("tagset("+localsprefixaddr+", (struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
2628 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
2633 int andmask=0xFFFFFFF;
2635 if (flagortable.containsKey(temp))
2636 ormask=((Integer)flagortable.get(temp)).intValue();
2637 if (flagandtable.containsKey(temp))
2638 andmask=((Integer)flagandtable.get(temp)).intValue();
2639 generateFlagOrAnd(ffan, fm, temp, output, ormask, andmask);
2640 generateObjectDistribute(ffan, fm, temp, output);
2644 protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, TempDescriptor temp,
2645 PrintWriter output, int ormask, int andmask) {
2646 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2647 output.println("flagorandinit("+generateTemp(fm, temp)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2649 output.println("flagorand("+generateTemp(fm, temp)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2653 protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, TempDescriptor temp, PrintWriter output) {
2654 output.println("enqueueObject("+generateTemp(fm, temp)+");");
2657 void generateOptionalHeader(PrintWriter headers) {
2660 headers.println("#include \"task.h\"\n\n");
2661 headers.println("#ifndef _OPTIONAL_STRUCT_");
2662 headers.println("#define _OPTIONAL_STRUCT_");
2664 //STRUCT PREDICATEMEMBER
2665 headers.println("struct predicatemember{");
2666 headers.println("int type;");
2667 headers.println("int numdnfterms;");
2668 headers.println("int * flags;");
2669 headers.println("int numtags;");
2670 headers.println("int * tags;\n};\n\n");
2672 //STRUCT OPTIONALTASKDESCRIPTOR
2673 headers.println("struct optionaltaskdescriptor{");
2674 headers.println("struct taskdescriptor * task;");
2675 headers.println("int index;");
2676 headers.println("int numenterflags;");
2677 headers.println("int * enterflags;");
2678 headers.println("int numpredicatemembers;");
2679 headers.println("struct predicatemember ** predicatememberarray;");
2680 headers.println("};\n\n");
2682 //STRUCT TASKFAILURE
2683 headers.println("struct taskfailure {");
2684 headers.println("struct taskdescriptor * task;");
2685 headers.println("int index;");
2686 headers.println("int numoptionaltaskdescriptors;");
2687 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2689 //STRUCT FSANALYSISWRAPPER
2690 headers.println("struct fsanalysiswrapper{");
2691 headers.println("int flags;");
2692 headers.println("int numtags;");
2693 headers.println("int * tags;");
2694 headers.println("int numtaskfailures;");
2695 headers.println("struct taskfailure ** taskfailurearray;");
2696 headers.println("int numoptionaltaskdescriptors;");
2697 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2699 //STRUCT CLASSANALYSISWRAPPER
2700 headers.println("struct classanalysiswrapper{");
2701 headers.println("int type;");
2702 headers.println("int numotd;");
2703 headers.println("struct optionaltaskdescriptor ** otdarray;");
2704 headers.println("int numfsanalysiswrappers;");
2705 headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
2707 headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
2709 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
2710 while(taskit.hasNext()) {
2711 TaskDescriptor td=(TaskDescriptor)taskit.next();
2712 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
2717 //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
2718 int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
2719 int predicateindex = 0;
2720 //iterate through the classes concerned by the predicate
2721 Set c_vard = predicate.vardescriptors;
2722 Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
2725 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext(); ) {
2726 VarDescriptor vard = (VarDescriptor)vard_it.next();
2727 TypeDescriptor typed = vard.getType();
2729 //generate for flags
2730 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
2731 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2733 if (fen_hashset!=null) {
2734 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext(); ) {
2735 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
2737 DNFFlag dflag=fen.getDNF();
2738 numberterms+=dflag.size();
2740 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
2742 for(int j=0; j<dflag.size(); j++) {
2744 output.println(",");
2745 Vector term=dflag.get(j);
2748 for(int k=0; k<term.size(); k++) {
2749 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
2750 FlagDescriptor fd=dfa.getFlag();
2751 boolean negated=dfa.getNegated();
2752 int flagid=1<<((Integer)flags.get(fd)).intValue();
2757 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
2762 output.println("};\n");
2765 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
2766 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2769 for(int j=0; j<tagel.numTags(); j++) {
2771 output.println(",");
2772 TempDescriptor tmp=tagel.getTemp(j);
2773 if (!slotnumber.containsKey(tmp)) {
2774 Integer slotint=new Integer(current_slot++);
2775 slotnumber.put(tmp,slotint);
2777 int slot=slotnumber.get(tmp).intValue();
2778 output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
2780 numtags = tagel.numTags();
2782 output.println("};");
2784 //store the result into a predicatemember struct
2785 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2786 output.println("/*type*/"+typed.getClassDesc().getId()+",");
2787 output.println("/* number of dnf terms */"+numberterms+",");
2788 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2789 output.println("/* number of tag */"+numtags+",");
2790 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2791 output.println("};\n");
2796 //generate an array that stores the entire predicate
2797 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2798 for( int j = 0; j<predicateindex; j++) {
2799 if( j != predicateindex-1) output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2800 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2802 output.println("};\n");
2803 return predicateindex;
2807 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
2808 generateOptionalHeader(headers);
2810 output.println("#include \"optionalstruct.h\"\n\n");
2811 output.println("#include \"stdlib.h\"\n");
2813 HashSet processedcd = new HashSet();
2815 Enumeration e = safeexecution.keys();
2816 while (e.hasMoreElements()) {
2819 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
2820 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp); //will be used several times
2822 //Generate the struct of optionals
2823 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2824 numotd = c_otd.size();
2825 if(maxotd<numotd) maxotd = numotd;
2826 if( !c_otd.isEmpty() ) {
2827 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext(); ) {
2828 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2830 //generate the int arrays for the predicate
2831 Predicate predicate = otd.predicate;
2832 int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
2833 TreeSet<Integer> fsset=new TreeSet<Integer>();
2834 //iterate through possible FSes corresponding to
2835 //the state when entering
2837 for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext(); ) {
2838 FlagState fs = (FlagState)fses.next();
2840 for(Iterator flags = fs.getFlags(); flags.hasNext(); ) {
2841 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2842 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2845 fsset.add(new Integer(flagid));
2846 //tag information not needed because tag
2847 //changes are not tolerated.
2850 output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2851 boolean needcomma=false;
2852 for(Iterator<Integer> it=fsset.iterator(); it.hasNext(); ) {
2855 output.println(it.next());
2858 output.println("};\n");
2861 //generate optionaltaskdescriptor that actually
2862 //includes exit fses, predicate and the task
2864 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2865 output.println("&task_"+otd.td.getSafeSymbol()+",");
2866 output.println("/*index*/"+otd.getIndex()+",");
2867 output.println("/*number of enter flags*/"+fsset.size()+",");
2868 output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2869 output.println("/*number of members */"+predicateindex+",");
2870 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2871 output.println("};\n");
2875 // if there are no optionals, there is no need to build the rest of the struct
2877 output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
2878 c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2879 if( !c_otd.isEmpty() ) {
2880 boolean needcomma=false;
2881 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext(); ) {
2882 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2884 output.println(",");
2886 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2889 output.println("};\n");
2891 //get all the possible flagstates reachable by an object
2892 Hashtable hashtbtemp = safeexecution.get(cdtemp);
2894 TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
2895 fsts.addAll(hashtbtemp.keySet());
2896 for(Iterator fsit=fsts.iterator(); fsit.hasNext(); ) {
2897 FlagState fs = (FlagState)fsit.next();
2900 //get the set of OptionalTaskDescriptors corresponding
2901 HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
2902 //iterate through the OptionalTaskDescriptors and
2903 //store the pointers to the optionals struct (see on
2904 //top) into an array
2906 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
2907 for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext(); ) {
2908 OptionalTaskDescriptor mm = mos.next();
2910 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
2912 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2915 output.println("};\n");
2917 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
2920 for(Iterator flags = fs.getFlags(); flags.hasNext(); ) {
2921 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2922 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2926 //process tag information
2929 boolean first = true;
2930 Enumeration tag_enum = fs.getTags();
2931 output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2932 while(tag_enum.hasMoreElements()) {
2934 TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
2938 output.println(", ");
2939 output.println("/*tagid*/"+state.getTagId(tagd));
2941 output.println("};");
2943 Set<TaskIndex> tiset=sa.getTaskIndex(fs);
2944 for(Iterator<TaskIndex> itti=tiset.iterator(); itti.hasNext(); ) {
2945 TaskIndex ti=itti.next();
2949 Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
2951 output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
2952 boolean needcomma=false;
2953 for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator(); otdit.hasNext(); ) {
2954 OptionalTaskDescriptor otd=otdit.next();
2958 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2960 output.println("};");
2962 output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
2963 output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
2964 output.print(ti.getIndex()+", ");
2965 output.print(otdset.size()+", ");
2966 output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
2967 output.println("};");
2970 tiset=sa.getTaskIndex(fs);
2971 boolean needcomma=false;
2973 output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2974 for(Iterator<TaskIndex> itti=tiset.iterator(); itti.hasNext(); ) {
2975 TaskIndex ti=itti.next();
2976 if (ti.isRuntime()) {
2983 output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
2985 output.println("};\n");
2987 //Store the result in fsanalysiswrapper
2989 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
2990 output.println("/*flag*/"+flagid+",");
2991 output.println("/* number of tags*/"+tagcounter+",");
2992 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2993 output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
2994 output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2995 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
2996 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
2997 output.println("};\n");
3001 //Build the array of fsanalysiswrappers
3002 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
3003 boolean needcomma=false;
3004 for(int i = 0; i<fscounter; i++) {
3005 if (needcomma) output.print(",");
3006 output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
3009 output.println("};");
3011 //Build the classanalysiswrapper referring to the previous array
3012 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
3013 output.println("/*type*/"+cdtemp.getId()+",");
3014 output.println("/*numotd*/"+numotd+",");
3015 output.println("otdarray"+cdtemp.getSafeSymbol()+",");
3016 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
3017 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
3018 processedcd.add(cdtemp);
3021 //build an array containing every classes for which code has been build
3022 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
3023 for(int i=0; i<state.numClasses(); i++) {
3024 ClassDescriptor cn=cdarray[i];
3027 if ((cn != null) && (processedcd.contains(cn)))
3028 output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
3030 output.print("NULL");
3032 output.println("};");
3034 output.println("#define MAXOTD "+maxotd);
3035 headers.println("#endif");
3038 public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
3039 Relation r=new Relation();
3040 for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator(); otdit.hasNext(); ) {
3041 OptionalTaskDescriptor otd=otdit.next();
3042 TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
3046 LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
3047 for(Iterator it=r.keySet().iterator(); it.hasNext(); ) {
3048 Set s=r.get(it.next());
3049 for(Iterator it2=s.iterator(); it2.hasNext(); ) {
3050 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();
3058 // override these methods in a subclass of BuildCode
3059 // to generate code for additional systems
3060 protected void printExtraArrayFields(PrintWriter outclassdefs) {
3062 protected void outputTransCode(PrintWriter output) {
3064 protected void buildCodeSetup() {
3066 protected void generateSizeArrayExtensions(PrintWriter outclassdefs) {
3068 protected void additionalIncludesMethodsHeader(PrintWriter outmethodheader) {
3070 protected void preCodeGenInitialization() {
3072 protected void postCodeGenCleanUp() {
3074 protected void additionalCodeGen(PrintWriter outmethodheader,
3075 PrintWriter outstructs,
3076 PrintWriter outmethod) {
3078 protected void additionalCodeAtTopOfMain(PrintWriter outmethod) {
3080 protected void additionalCodeAtBottomOfMain(PrintWriter outmethod) {
3082 protected void additionalIncludesMethodsImplementation(PrintWriter outmethod) {
3084 protected void additionalIncludesStructsHeader(PrintWriter outstructs) {
3086 protected void additionalClassObjectFields(PrintWriter outclassdefs) {
3088 protected void additionalCodeAtTopMethodsImplementation(PrintWriter outmethod) {
3090 protected void additionalCodeAtTopFlatMethodBody(PrintWriter output, FlatMethod fm) {
3092 protected void additionalCodePreNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
3094 protected void additionalCodePostNode(FlatMethod fm, FlatNode fn, PrintWriter output) {