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 ClassDescriptor[] ifarray;
49 TypeDescriptor[] arraytable;
52 Hashtable<String, ClassDescriptor> printedfieldstbl;
53 int globaldefscount=0;
54 boolean mgcstaticinit = false;
56 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil) {
57 this(st, temptovar, typeutil, null);
60 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa) {
63 callgraph=new CallGraph(state);
64 this.temptovar=temptovar;
65 paramstable=new Hashtable();
66 tempstable=new Hashtable();
67 fieldorder=new Hashtable();
68 flagorder=new Hashtable();
69 this.typeutil=typeutil;
71 virtualcalls=new Virtual(state, null);
72 printedfieldstbl = new Hashtable<String, ClassDescriptor>();
75 /** The buildCode method outputs C code for all the methods. The Flat
76 * versions of the methods must already be generated and stored in
77 * the State object. */
80 public void buildCode() {
81 /* Create output streams to write to */
82 PrintWriter outclassdefs=null;
83 PrintWriter outstructs=null;
84 PrintWriter outrepairstructs=null;
85 PrintWriter outmethodheader=null;
86 PrintWriter outmethod=null;
87 PrintWriter outvirtual=null;
88 PrintWriter outtask=null;
89 PrintWriter outtaskdefs=null;
90 PrintWriter outoptionalarrays=null;
91 PrintWriter optionalheaders=null;
92 PrintWriter outglobaldefs=null;
93 PrintWriter outglobaldefsprim=null;
96 buildCodeSetup(); //EXTENSION POINT
97 outstructs=new CodePrinter(new FileOutputStream(PREFIX+"structdefs.h"), true);
98 outmethodheader=new CodePrinter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
99 outclassdefs=new CodePrinter(new FileOutputStream(PREFIX+"classdefs.h"), true);
100 outglobaldefs=new CodePrinter(new FileOutputStream(PREFIX+"globaldefs.h"), true);
101 outglobaldefsprim=new CodePrinter(new FileOutputStream(PREFIX+"globaldefsprim.h"), true);
102 outmethod=new CodePrinter(new FileOutputStream(PREFIX+"methods.c"), true);
103 outvirtual=new CodePrinter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
105 outtask=new CodePrinter(new FileOutputStream(PREFIX+"task.h"), true);
106 outtaskdefs=new CodePrinter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
107 if (state.OPTIONAL) {
108 outoptionalarrays=new CodePrinter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
109 optionalheaders=new CodePrinter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
112 if (state.structfile!=null) {
113 outrepairstructs=new CodePrinter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
115 } catch (Exception e) {
120 /* Fix field safe symbols due to shadowing */
121 FieldShadow.handleFieldShadow(state);
123 /* Build the virtual dispatch tables */
124 buildVirtualTables(outvirtual);
126 /* Tag the methods that are invoked by static blocks */
127 tagMethodInvokedByStaticBlock();
129 /* Output includes */
130 outmethodheader.println("#ifndef METHODHEADERS_H");
131 outmethodheader.println("#define METHODHEADERS_H");
132 outmethodheader.println("#include \"structdefs.h\"");
134 if (state.EVENTMONITOR) {
135 outmethodheader.println("#include \"monitor.h\"");
138 additionalIncludesMethodsHeader(outmethodheader);
140 /* Output Structures */
141 outputStructs(outstructs);
143 // Output the C class declarations
144 // These could mutually reference each other
146 outglobaldefs.println("#ifndef __GLOBALDEF_H_");
147 outglobaldefs.println("#define __GLOBALDEF_H_");
148 outglobaldefs.println("");
149 outglobaldefs.println("struct global_defs_t {");
150 outglobaldefs.println(" int size;");
151 outglobaldefs.println(" void * next;");
152 outglobaldefsprim.println("#ifndef __GLOBALDEFPRIM_H_");
153 outglobaldefsprim.println("#define __GLOBALDEFPRIM_H_");
154 outglobaldefsprim.println("");
155 outglobaldefsprim.println("struct global_defsprim_t {");
157 outclassdefs.println("#ifndef __CLASSDEF_H_");
158 outclassdefs.println("#define __CLASSDEF_H_");
159 outputClassDeclarations(outclassdefs, outglobaldefs, outglobaldefsprim);
161 // Output function prototypes and structures for parameters
162 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
163 while(it.hasNext()) {
164 ClassDescriptor cn=(ClassDescriptor)it.next();
165 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader, outglobaldefs, outglobaldefsprim);
167 outclassdefs.println("#include \"globaldefs.h\"");
168 outclassdefs.println("#include \"globaldefsprim.h\"");
169 outclassdefs.println("#endif");
170 outclassdefs.close();
172 outglobaldefs.println("};");
173 outglobaldefs.println("");
174 outglobaldefs.println("extern struct global_defs_t * global_defs_p;");
175 outglobaldefs.println("#endif");
176 outglobaldefs.flush();
177 outglobaldefs.close();
179 outglobaldefsprim.println("};");
180 outglobaldefsprim.println("");
181 outglobaldefsprim.println("extern struct global_defsprim_t * global_defsprim_p;");
182 outglobaldefsprim.println("#endif");
183 outglobaldefsprim.flush();
184 outglobaldefsprim.close();
187 /* Map flags to integers */
188 /* The runtime keeps track of flags using these integers */
189 it=state.getClassSymbolTable().getDescriptorsIterator();
190 while(it.hasNext()) {
191 ClassDescriptor cn=(ClassDescriptor)it.next();
195 generateTaskStructs(outstructs, outmethodheader);
197 /* Outputs generic task structures if this is a task
199 outputTaskTypes(outtask);
203 // an opportunity for subclasses to do extra
205 preCodeGenInitialization();
208 /* Build the actual methods */
209 outputMethods(outmethod);
212 // opportunity for subclasses to gen extra code
213 additionalCodeGen(outmethodheader,
219 /* Output code for tasks */
220 outputTaskCode(outtaskdefs, outmethod);
222 /* Record maximum number of task parameters */
223 outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
224 } else if (state.main!=null) {
225 /* Generate main method */
226 outputMainMethod(outmethod);
229 /* Generate information for task with optional parameters */
230 if (state.TASK&&state.OPTIONAL) {
231 generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
232 outoptionalarrays.close();
235 /* Output structure definitions for repair tool */
236 if (state.structfile!=null) {
237 buildRepairStructs(outrepairstructs);
238 outrepairstructs.close();
242 outmethodheader.println("#endif");
243 outmethodheader.close();
245 outstructs.println("#endif");
250 postCodeGenCleanUp();
253 /* This method goes though the call graph and check which methods are really
254 * invoked and should be generated
256 protected void checkMethods2Gen() {
257 MethodDescriptor md=typeutil.getMain();
260 // check the methods to be generated
261 state.setGenAllMethods(false);
263 // generate all methods
266 this.state.addMethod2gen(md);
268 Iterator it_classes = this.state.getClassSymbolTable().getDescriptorsIterator();
269 while(it_classes.hasNext()) {
270 ClassDescriptor cd = (ClassDescriptor)it_classes.next();
271 Iterator it_methods = cd.getMethodTable().getDescriptorsIterator();
272 while(it_methods.hasNext()) {
273 md = (MethodDescriptor)it_methods.next();
274 if(md.isStaticBlock() || md.getModifiers().isNative() || this.callgraph.getCallerSet(md).size() > 0
275 || (cd.getSymbol().equals("Thread") && md.getSymbol().equals("staticStart"))) {
276 this.state.addMethod2gen(md);
283 /* This method goes though the call graph and tag those methods that are
284 * invoked inside static blocks
286 protected void tagMethodInvokedByStaticBlock() {
287 Iterator it_sclasses = this.state.getSClassSymbolTable().getDescriptorsIterator();
288 MethodDescriptor current_md=null;
289 HashSet tovisit=new HashSet();
290 HashSet visited=new HashSet();
292 while(it_sclasses.hasNext()) {
293 ClassDescriptor cd = (ClassDescriptor)it_sclasses.next();
294 MethodDescriptor md = (MethodDescriptor)cd.getMethodTable().get("staticblocks");
300 while(!tovisit.isEmpty()) {
301 current_md=(MethodDescriptor)tovisit.iterator().next();
302 tovisit.remove(current_md);
303 visited.add(current_md);
304 Iterator it_callee = this.callgraph.getCalleeSet(current_md).iterator();
305 while(it_callee.hasNext()) {
306 Descriptor d = (Descriptor)it_callee.next();
307 if(d instanceof MethodDescriptor) {
308 if(!visited.contains(d)) {
309 ((MethodDescriptor)d).setIsInvokedByStatic(true);
317 /* This code generates code for each static block and static field
319 protected void outputStaticBlocks(PrintWriter outmethod) {
320 // execute all the static blocks and all the static field initializations
321 // execute all the static blocks and all the static field initializations
322 SymbolTable sctbl = this.state.getSClassSymbolTable();
323 Iterator it_sclasses = sctbl.getDescriptorsIterator();
324 if(it_sclasses.hasNext()) {
325 while(it_sclasses.hasNext()) {
326 ClassDescriptor t_cd = (ClassDescriptor)it_sclasses.next();
327 MethodDescriptor t_md = (MethodDescriptor)t_cd.getMethodTable().get("staticblocks");
329 outmethod.println(" {");
330 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
331 outmethod.print(" struct "+t_cd.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"_params __parameterlist__={");
332 outmethod.println("0, NULL};");
333 outmethod.println(" "+t_cd.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"(& __parameterlist__);");
335 outmethod.println(" "+t_cd.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
337 outmethod.println(" }");
343 /* This code generates code to create a Class object for each class for
346 protected void outputClassObjects(PrintWriter outmethod) {
347 // for each class, initialize its Class object
348 SymbolTable ctbl = this.state.getClassSymbolTable();
349 for(Iterator it_classes = ctbl.getDescriptorsIterator();it_classes.hasNext();) {
350 ClassDescriptor t_cd = (ClassDescriptor)it_classes.next();
351 outmethod.println(" {");
352 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
353 outmethod.println(" struct garbagelist dummy={0,NULL};");
354 outmethod.println(" global_defs_p->"+t_cd.getSafeSymbol()+"classobj = allocate_new(&dummy, " + typeutil.getClass(TypeUtil.ObjectClass).getId() + ");");
356 outmethod.println(" global_defs_p->"+t_cd.getSafeSymbol()+"classobj = allocate_new("+typeutil.getClass(TypeUtil.ObjectClass).getId() + ");");
357 outmethod.println(" global_defs_p->"+t_cd.getSafeSymbol()+"classobj->type = " + t_cd.getId() + ";");
358 outmethod.println(" }");
362 /* This code just generates the main C method for java programs.
363 * The main C method packs up the arguments into a string array
364 * and passes it to the java main method. */
366 protected void outputMainMethod(PrintWriter outmethod) {
367 outmethod.println("int main(int argc, const char *argv[]) {");
368 outmethod.println(" int i;");
369 outmethod.println(" global_defs_p=calloc(1, sizeof(struct global_defs_t));");
370 outmethod.println(" global_defsprim_p=calloc(1, sizeof(struct global_defsprim_t));");
371 if (GENERATEPRECISEGC) {
372 outmethod.println(" global_defs_p->size="+globaldefscount+";");
373 outmethod.println(" for(i=0;i<"+globaldefscount+";i++) {");
374 outmethod.println(" ((struct garbagelist *)global_defs_p)->array[i]=NULL;");
375 outmethod.println(" }");
377 outputStaticBlocks(outmethod);
378 outputClassObjects(outmethod);
381 additionalCodeAtTopOfMain(outmethod);
384 outmethod.println("initializethreads();");
387 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
388 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
390 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
392 outmethod.println(" for(i=1;i<argc;i++) {");
393 outmethod.println(" int length=strlen(argv[i]);");
395 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
396 outmethod.println(" struct ___String___ *newstring=NewString(NULL, argv[i], length);");
398 outmethod.println(" struct ___String___ *newstring=NewString(argv[i], length);");
400 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
401 outmethod.println(" }");
403 MethodDescriptor md=typeutil.getMain();
404 ClassDescriptor cd=typeutil.getMainClass();
406 outmethod.println(" {");
407 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
408 outmethod.print(" struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
409 outmethod.println("1, NULL,"+"stringarray};");
410 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
412 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
414 outmethod.println(" }");
417 outmethod.println("pthread_mutex_lock(&gclistlock);");
418 outmethod.println("threadcount--;");
419 outmethod.println("pthread_cond_signal(&gccond);");
420 outmethod.println("pthread_mutex_unlock(&gclistlock);");
423 if (state.EVENTMONITOR) {
424 outmethod.println("dumpdata();");
428 outmethod.println("pthread_exit(NULL);");
431 additionalCodeAtBottomOfMain(outmethod);
433 outmethod.println("}");
436 /* This method outputs code for each task. */
438 protected void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
439 /* Compile task based program */
440 outtaskdefs.println("#include \"task.h\"");
441 outtaskdefs.println("#include \"methodheaders.h\"");
442 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
443 while(taskit.hasNext()) {
444 TaskDescriptor td=(TaskDescriptor)taskit.next();
445 FlatMethod fm=state.getMethodFlat(td);
446 generateFlatMethod(fm, outmethod);
447 generateTaskDescriptor(outtaskdefs, fm, td);
450 //Output task descriptors
451 taskit=state.getTaskSymbolTable().getDescriptorsIterator();
452 outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
454 while(taskit.hasNext()) {
455 TaskDescriptor td=(TaskDescriptor)taskit.next();
459 outtaskdefs.println(",");
460 outtaskdefs.print("&task_"+td.getSafeSymbol());
462 outtaskdefs.println("};");
464 outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
468 /* This method outputs most of the methods.c file. This includes
469 * some standard includes and then an array with the sizes of
470 * objets and array that stores supertype and then the code for
471 * the Java methods.. */
472 protected void outputMethods(PrintWriter outmethod) {
473 outmethod.println("#include \"methodheaders.h\"");
474 outmethod.println("#include \"virtualtable.h\"");
475 outmethod.println("#include \"runtime.h\"");
477 // always include: compiler directives will leave out
478 // instrumentation when option is not set
479 outmethod.println("#include \"coreprof/coreprof.h\"");
481 if (state.FASTCHECK) {
482 outmethod.println("#include \"localobjects.h\"");
484 if(state.MULTICORE) {
486 outmethod.println("#include \"task.h\"");
488 outmethod.println("#include \"multicoreruntime.h\"");
489 outmethod.println("#include \"runtime_arch.h\"");
491 if (state.THREAD||state.DSM||state.SINGLETM) {
492 outmethod.println("#include <thread.h>");
495 outmethod.println("#include \"thread.h\"");
497 if (state.main!=null) {
498 outmethod.println("#include <string.h>");
500 if (state.CONSCHECK) {
501 outmethod.println("#include \"checkers.h\"");
505 additionalIncludesMethodsImplementation(outmethod);
507 outmethod.println("struct global_defs_t * global_defs_p;");
508 outmethod.println("struct global_defsprim_t * global_defsprim_p;");
509 //Store the sizes of classes & array elements
510 generateSizeArray(outmethod);
512 //Store table of supertypes
513 generateSuperTypeTable(outmethod);
515 //Store the layout of classes
516 generateLayoutStructs(outmethod);
519 additionalCodeAtTopMethodsImplementation(outmethod);
521 generateMethods(outmethod);
524 protected void generateMethods(PrintWriter outmethod) {
525 /* Generate code for methods */
526 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
527 while(classit.hasNext()) {
528 ClassDescriptor cn=(ClassDescriptor)classit.next();
529 Iterator methodit=cn.getMethods();
530 while(methodit.hasNext()) {
531 /* Classify parameters */
532 MethodDescriptor md=(MethodDescriptor)methodit.next();
533 Set vec_md = this.state.getMethod2gen().getSet(md.getSymbol());
534 boolean foundmatch = false;
535 for(Iterator matchit=vec_md.iterator(); matchit.hasNext();) {
536 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
537 if (md.matches(matchmd)) {
545 FlatMethod fm=state.getMethodFlat(md);
546 if (!md.getModifiers().isNative()) {
547 generateFlatMethod(fm, outmethod);
553 protected void outputStructs(PrintWriter outstructs) {
554 outstructs.println("#ifndef STRUCTDEFS_H");
555 outstructs.println("#define STRUCTDEFS_H");
556 outstructs.println("#include \"classdefs.h\"");
557 outstructs.println("#ifndef INTPTR");
558 outstructs.println("#ifdef BIT64");
559 outstructs.println("#define INTPTR long");
560 outstructs.println("#else");
561 outstructs.println("#define INTPTR int");
562 outstructs.println("#endif");
563 outstructs.println("#endif");
566 additionalIncludesStructsHeader(outstructs);
569 /* Output #defines that the runtime uses to determine type
570 * numbers for various objects it needs */
571 outstructs.println("#define MAXCOUNT "+maxcount);
573 outstructs.println("#define STRINGARRAYTYPE "+
574 (state.getArrayNumber(
575 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
577 outstructs.println("#define OBJECTARRAYTYPE "+
578 (state.getArrayNumber(
579 (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
582 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
583 outstructs.println("#define CHARARRAYTYPE "+
584 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
586 outstructs.println("#define BYTEARRAYTYPE "+
587 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
589 outstructs.println("#define BYTEARRAYARRAYTYPE "+
590 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
592 outstructs.println("#define NUMCLASSES "+state.numClasses());
593 int totalClassSize = state.numClasses() + state.numArrays() + state.numInterfaces();
594 outstructs.println("#define TOTALNUMCLASSANDARRAY "+ totalClassSize);
596 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
597 outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
598 outstructs.println("#define TAGARRAYTYPE "+
599 (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
603 protected void outputClassDeclarations(PrintWriter outclassdefs, PrintWriter outglobaldefs, PrintWriter outglobaldefsprim) {
604 if (state.THREAD||state.DSM||state.SINGLETM)
605 outclassdefs.println("#include <pthread.h>");
606 outclassdefs.println("#ifndef INTPTR");
607 outclassdefs.println("#ifdef BIT64");
608 outclassdefs.println("#define INTPTR long");
609 outclassdefs.println("#else");
610 outclassdefs.println("#define INTPTR int");
611 outclassdefs.println("#endif");
612 outclassdefs.println("#endif");
614 outclassdefs.println("#include \"optionalstruct.h\"");
615 outclassdefs.println("struct "+arraytype+";");
616 /* Start by declaring all structs */
617 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
618 while(it.hasNext()) {
619 ClassDescriptor cn=(ClassDescriptor)it.next();
620 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
622 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
623 // this class has static fields/blocks, need to add a global flag to
624 // indicate if its static fields have been initialized and/or if its
625 // static blocks have been executed
626 outglobaldefsprim.println(" int "+cn.getSafeSymbol()+"static_block_exe_flag;");
629 // for each class, create a global object
630 outglobaldefs.println(" struct ___Object___ *"+cn.getSafeSymbol()+"classobj;");
633 outclassdefs.println("");
634 //Print out definition for array type
635 outclassdefs.println("struct "+arraytype+" {");
636 outclassdefs.println(" int type;");
639 additionalClassObjectFields(outclassdefs);
642 if (state.EVENTMONITOR) {
643 outclassdefs.println(" int objuid;");
646 outclassdefs.println(" pthread_t tid;");
647 outclassdefs.println(" void * lockentry;");
648 outclassdefs.println(" int lockcount;");
651 outclassdefs.println(" int mutex;");
652 outclassdefs.println(" volatile int notifycount;");
653 outclassdefs.println(" int objlock;");
654 if(state.MULTICOREGC) {
655 outclassdefs.println(" int marked;");
659 outclassdefs.println(" int flag;");
660 if(!state.MULTICORE) {
661 outclassdefs.println(" void * flagptr;");
663 outclassdefs.println(" int version;");
664 outclassdefs.println(" int * lock;"); // lock entry for this obj
665 outclassdefs.println(" int mutex;");
666 outclassdefs.println(" int lockcount;");
667 if(state.MULTICOREGC) {
668 outclassdefs.println(" int marked;");
672 outclassdefs.println(" int numfses;");
673 outclassdefs.println(" int * fses;");
677 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs, outglobaldefs, outglobaldefsprim);
678 printedfieldstbl.clear();
679 printExtraArrayFields(outclassdefs);
680 if (state.ARRAYPAD) {
681 outclassdefs.println(" int paddingforarray;");
684 outclassdefs.println(" int ___length___;");
685 outclassdefs.println("};\n");
688 // TODO add version for normal Java later
689 outclassdefs.println("");
690 //Print out definition for Class type
691 outclassdefs.println("struct Class {");
692 outclassdefs.println(" int type;");
695 additionalClassObjectFields(outclassdefs);
698 if (state.EVENTMONITOR) {
699 outclassdefs.println(" int objuid;");
702 outclassdefs.println(" pthread_t tid;");
703 outclassdefs.println(" void * lockentry;");
704 outclassdefs.println(" int lockcount;");
707 outclassdefs.println(" int mutex;");
708 outclassdefs.println(" volatile int notifycount;");
709 outclassdefs.println(" int objlock;");
710 if(state.MULTICOREGC) {
711 outclassdefs.println(" int marked;");
715 outclassdefs.println(" int flag;");
716 if(!state.MULTICORE) {
717 outclassdefs.println(" void * flagptr;");
719 outclassdefs.println(" int version;");
720 outclassdefs.println(" int * lock;"); // lock entry for this obj
721 outclassdefs.println(" int mutex;");
722 outclassdefs.println(" int lockcount;");
723 if(state.MULTICOREGC) {
724 outclassdefs.println(" int marked;");
728 outclassdefs.println(" int numfses;");
729 outclassdefs.println(" int * fses;");
732 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs, outglobaldefs, outglobaldefsprim);
733 printedfieldstbl.clear();
734 outclassdefs.println("};\n");
737 outclassdefs.println("");
738 outclassdefs.println("extern int classsize[];");
739 outclassdefs.println("extern int hasflags[];");
740 outclassdefs.println("extern unsigned INTPTR * pointerarray[];");
741 outclassdefs.println("extern int* supertypes[];");
742 outclassdefs.println("");
745 /** Prints out definitions for generic task structures */
747 protected void outputTaskTypes(PrintWriter outtask) {
748 outtask.println("#ifndef _TASK_H");
749 outtask.println("#define _TASK_H");
750 outtask.println("struct parameterdescriptor {");
751 outtask.println("int type;");
752 outtask.println("int numberterms;");
753 outtask.println("int *intarray;");
754 outtask.println("void * queue;");
755 outtask.println("int numbertags;");
756 outtask.println("int *tagarray;");
757 outtask.println("};");
759 outtask.println("struct taskdescriptor {");
760 outtask.println("void * taskptr;");
761 outtask.println("int numParameters;");
762 outtask.println(" int numTotal;");
763 outtask.println("struct parameterdescriptor **descriptorarray;");
764 outtask.println("char * name;");
765 outtask.println("};");
766 outtask.println("extern struct taskdescriptor * taskarray[];");
767 outtask.println("extern numtasks;");
768 outtask.println("#endif");
772 protected void buildRepairStructs(PrintWriter outrepairstructs) {
773 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
774 while(classit.hasNext()) {
775 ClassDescriptor cn=(ClassDescriptor)classit.next();
776 outrepairstructs.println("structure "+cn.getSymbol()+" {");
777 outrepairstructs.println(" int __type__;");
779 outrepairstructs.println(" int __flag__;");
780 if(!state.MULTICORE) {
781 outrepairstructs.println(" int __flagptr__;");
784 printRepairStruct(cn, outrepairstructs);
785 outrepairstructs.println("}\n");
788 for(int i=0; i<state.numArrays(); i++) {
789 TypeDescriptor tdarray=arraytable[i];
790 TypeDescriptor tdelement=tdarray.dereference();
791 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
792 outrepairstructs.println(" int __type__;");
793 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
794 outrepairstructs.println(" int length;");
795 outrepairstructs.println("}\n");
799 protected void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
800 ClassDescriptor sp=cn.getSuperDesc();
802 printRepairStruct(sp, output);
804 Vector fields=(Vector)fieldorder.get(cn);
806 for(int i=0; i<fields.size(); i++) {
807 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
808 if (fd.getType().isArray()) {
809 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
810 } else if (fd.getType().isClass())
811 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
812 else if (fd.getType().isFloat())
813 output.println(" int "+fd.getSymbol()+"; /* really float */");
815 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
819 /** This method outputs TaskDescriptor information */
820 protected void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
821 for (int i=0; i<task.numParameters(); i++) {
822 VarDescriptor param_var=task.getParameter(i);
823 TypeDescriptor param_type=task.getParamType(i);
824 FlagExpressionNode param_flag=task.getFlag(param_var);
825 TagExpressionList param_tag=task.getTag(param_var);
828 if (param_flag==null) {
829 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
830 output.println("0x0, 0x0 };");
833 DNFFlag dflag=param_flag.getDNF();
834 dnfterms=dflag.size();
836 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
837 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
838 for(int j=0; j<dflag.size(); j++) {
841 Vector term=dflag.get(j);
844 for(int k=0; k<term.size(); k++) {
845 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
846 FlagDescriptor fd=dfa.getFlag();
847 boolean negated=dfa.getNegated();
848 int flagid=1<<((Integer)flags.get(fd)).intValue();
853 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
855 output.println("};");
858 output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
860 for(int j=0; j<param_tag.numTags(); j++) {
863 /* for each tag we need */
864 /* which slot it is */
865 /* what type it is */
866 TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
867 TempDescriptor tmp=param_tag.getTemp(j);
868 int slot=fm.getTagInt(tmp);
869 output.println(slot+", "+state.getTagId(tvd.getTag()));
871 output.println("};");
873 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
874 output.println("/* type */"+param_type.getClassDesc().getId()+",");
875 output.println("/* number of DNF terms */"+dnfterms+",");
876 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
877 output.println("0,");
879 output.println("/* number of tags */"+param_tag.numTags()+",");
881 output.println("/* number of tags */ 0,");
882 output.println("parametertag_"+i+"_"+task.getSafeSymbol());
883 output.println("};");
887 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
888 for (int i=0; i<task.numParameters(); i++) {
891 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
893 output.println("};");
895 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
896 output.println("&"+task.getSafeSymbol()+",");
897 output.println("/* number of parameters */" +task.numParameters() + ",");
898 int numtotal=task.numParameters()+fm.numTags();
899 output.println("/* number total parameters */" +numtotal + ",");
900 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
901 output.println("\""+task.getSymbol()+"\"");
902 output.println("};");
906 /** The buildVirtualTables method outputs the virtual dispatch
907 * tables for methods. */
909 protected void buildVirtualTables(PrintWriter outvirtual) {
910 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
911 while(classit.hasNext()) {
912 ClassDescriptor cd=(ClassDescriptor)classit.next();
913 if (virtualcalls.getMethodCount(cd)>maxcount)
914 maxcount=virtualcalls.getMethodCount(cd);
916 MethodDescriptor[][] virtualtable=null;
917 virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
919 /* Fill in virtual table */
920 classit=state.getClassSymbolTable().getDescriptorsIterator();
921 while(classit.hasNext()) {
922 ClassDescriptor cd=(ClassDescriptor)classit.next();
923 if(cd.isInterface()) {
926 fillinRow(cd, virtualtable, cd.getId());
929 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
930 Iterator arrayit=state.getArrayIterator();
931 while(arrayit.hasNext()) {
932 TypeDescriptor td=(TypeDescriptor)arrayit.next();
933 int id=state.getArrayNumber(td);
934 fillinRow(objectcd, virtualtable, id+state.numClasses());
937 outvirtual.print("void * virtualtable[]={");
938 boolean needcomma=false;
939 for(int i=0; i<state.numClasses()+state.numArrays(); i++) {
940 for(int j=0; j<maxcount; j++) {
942 outvirtual.print(", ");
943 if (virtualtable[i][j]!=null) {
944 MethodDescriptor md=virtualtable[i][j];
945 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
947 outvirtual.print("0");
951 outvirtual.println("");
953 outvirtual.println("};");
957 protected void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
958 /* Get inherited methods */
959 Iterator it_sifs = cd.getSuperInterfaces();
960 while(it_sifs.hasNext()) {
961 ClassDescriptor superif = (ClassDescriptor)it_sifs.next();
962 fillinRow(superif, virtualtable, rownum);
964 if (cd.getSuperDesc()!=null)
965 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
966 /* Override them with our methods */
967 for(Iterator it=cd.getMethods(); it.hasNext(); ) {
968 MethodDescriptor md=(MethodDescriptor)it.next();
969 if (md.isStatic()||md.getReturnType()==null)
971 Set vec_md = this.state.getMethod2gen().getSet(md.getSymbol());
972 boolean foundmatch = false;
973 for(Iterator matchit=vec_md.iterator(); matchit.hasNext();) {
974 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
975 if (md.matches(matchmd)) {
983 int methodnum = virtualcalls.getMethodNumber(md);
984 virtualtable[rownum][methodnum]=md;
988 /** Generate array that contains the sizes of class objects. The
989 * object allocation functions in the runtime use this
992 protected void generateSizeArray(PrintWriter outclassdefs) {
993 outclassdefs.print("extern struct prefetchCountStats * evalPrefetch;\n");
994 generateSizeArrayExtensions(outclassdefs);
996 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
997 cdarray=new ClassDescriptor[state.numClasses()];
998 ifarray = new ClassDescriptor[state.numInterfaces()];
1000 int interfaceid = 0;
1001 while(it.hasNext()) {
1002 ClassDescriptor cd=(ClassDescriptor)it.next();
1003 if(cd.isInterface()) {
1004 ifarray[cd.getId()] = cd;
1006 cdarray[cd.getId()] = cd;
1010 arraytable=new TypeDescriptor[state.numArrays()];
1012 Iterator arrayit=state.getArrayIterator();
1013 while(arrayit.hasNext()) {
1014 TypeDescriptor td=(TypeDescriptor)arrayit.next();
1015 int id=state.getArrayNumber(td);
1019 /* Print out types */
1020 outclassdefs.println("/* ");
1021 for(int i=0; i<state.numClasses(); i++) {
1022 ClassDescriptor cd=cdarray[i];
1024 outclassdefs.println("NULL " + i);
1026 outclassdefs.println(cd +" "+i);
1030 for(int i=0; i<state.numArrays(); i++) {
1031 TypeDescriptor arraytd=arraytable[i];
1032 outclassdefs.println(arraytd.toPrettyString() +" "+(i+state.numClasses()));
1035 for(int i=0; i<state.numInterfaces(); i++) {
1036 ClassDescriptor ifcd = ifarray[i];
1037 outclassdefs.println(ifcd +" "+(i+state.numClasses()+state.numArrays()));
1040 outclassdefs.println("*/");
1043 outclassdefs.print("int classsize[]={");
1045 boolean needcomma=false;
1046 for(int i=0; i<state.numClasses(); i++) {
1048 outclassdefs.print(", ");
1050 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
1052 outclassdefs.print("0");
1058 for(int i=0; i<state.numArrays(); i++) {
1060 outclassdefs.print(", ");
1061 TypeDescriptor tdelement=arraytable[i].dereference();
1062 if (tdelement.isArray()||tdelement.isClass()||tdelement.isNull())
1063 outclassdefs.print("sizeof(void *)");
1065 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
1069 for(int i=0; i<state.numInterfaces(); i++) {
1071 outclassdefs.print(", ");
1072 outclassdefs.print("sizeof(struct "+ifarray[i].getSafeSymbol()+")");
1076 outclassdefs.println("};");
1078 ClassDescriptor objectclass=typeutil.getClass(TypeUtil.ObjectClass);
1080 outclassdefs.print("int typearray[]={");
1081 for(int i=0; i<state.numClasses(); i++) {
1082 ClassDescriptor cd=cdarray[i];
1083 ClassDescriptor supercd=i>0 ? cd.getSuperDesc() : null;
1084 if(supercd != null && supercd.isInterface()) {
1085 throw new Error("Super class can not be interfaces");
1088 outclassdefs.print(", ");
1090 outclassdefs.print("-1");
1092 outclassdefs.print(supercd.getId());
1096 for(int i=0; i<state.numArrays(); i++) {
1097 TypeDescriptor arraytd=arraytable[i];
1098 ClassDescriptor arraycd=arraytd.getClassDesc();
1099 if (arraycd==null) {
1101 outclassdefs.print(", ");
1102 outclassdefs.print(objectclass.getId());
1106 ClassDescriptor cd=arraycd.getSuperDesc();
1109 TypeDescriptor supertd=new TypeDescriptor(cd);
1110 supertd.setArrayCount(arraytd.getArrayCount());
1111 type=state.getArrayNumber(supertd);
1113 type+=state.numClasses();
1116 cd=cd.getSuperDesc();
1119 outclassdefs.print(", ");
1120 outclassdefs.print(type);
1124 for(int i=0; i<state.numInterfaces(); i++) {
1125 ClassDescriptor cd=ifarray[i];
1126 ClassDescriptor supercd=cd.getSuperDesc();
1127 if(supercd != null && supercd.isInterface()) {
1128 throw new Error("Super class can not be interfaces");
1131 outclassdefs.print(", ");
1133 outclassdefs.print("-1");
1135 outclassdefs.print(supercd.getId());
1139 outclassdefs.println("};");
1144 outclassdefs.print("int typearray2[]={");
1145 for(int i=0; i<state.numArrays(); i++) {
1146 TypeDescriptor arraytd=arraytable[i];
1147 ClassDescriptor arraycd=arraytd.getClassDesc();
1148 if (arraycd==null) {
1150 outclassdefs.print(", ");
1151 outclassdefs.print("-1");
1155 ClassDescriptor cd=arraycd.getSuperDesc();
1156 int level=arraytd.getArrayCount()-1;
1158 for(; level>0; level--) {
1159 TypeDescriptor supertd=new TypeDescriptor(objectclass);
1160 supertd.setArrayCount(level);
1161 type=state.getArrayNumber(supertd);
1163 type+=state.numClasses();
1168 outclassdefs.print(", ");
1169 outclassdefs.print(type);
1173 outclassdefs.println("};");
1176 /** Constructs params and temp objects for each method or task.
1177 * These objects tell the compiler which temps need to be
1180 protected void generateTempStructs(FlatMethod fm) {
1181 MethodDescriptor md=fm.getMethod();
1182 TaskDescriptor task=fm.getTask();
1183 ParamsObject objectparams=md!=null ? new ParamsObject(md,tag++) : new ParamsObject(task, tag++);
1185 paramstable.put(md, objectparams);
1187 paramstable.put(task, objectparams);
1189 for(int i=0; i<fm.numParameters(); i++) {
1190 TempDescriptor temp=fm.getParameter(i);
1191 TypeDescriptor type=temp.getType();
1192 if (type.isPtr()&&((GENERATEPRECISEGC) || (this.state.MULTICOREGC)))
1193 objectparams.addPtr(temp);
1195 objectparams.addPrim(temp);
1198 for(int i=0; i<fm.numTags(); i++) {
1199 TempDescriptor temp=fm.getTag(i);
1200 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
1201 objectparams.addPtr(temp);
1203 objectparams.addPrim(temp);
1206 TempObject objecttemps=md!=null ? new TempObject(objectparams,md,tag++) : new TempObject(objectparams, task, tag++);
1208 tempstable.put(md, objecttemps);
1210 tempstable.put(task, objecttemps);
1212 for(Iterator nodeit=fm.getNodeSet().iterator(); nodeit.hasNext(); ) {
1213 FlatNode fn=(FlatNode)nodeit.next();
1214 TempDescriptor[] writes=fn.writesTemps();
1215 for(int i=0; i<writes.length; i++) {
1216 TempDescriptor temp=writes[i];
1217 TypeDescriptor type=temp.getType();
1218 if (type.isPtr()&&((GENERATEPRECISEGC) || (this.state.MULTICOREGC)))
1219 objecttemps.addPtr(temp);
1221 objecttemps.addPrim(temp);
1226 /** This method outputs the following information about classes
1228 * (1) For classes, what are the locations of pointers.
1229 * (2) For arrays, does the array contain pointers or primitives.
1230 * (3) For classes, does the class contain flags.
1233 protected void generateLayoutStructs(PrintWriter output) {
1234 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
1235 while(it.hasNext()) {
1236 ClassDescriptor cn=(ClassDescriptor)it.next();
1237 output.println("unsigned INTPTR "+cn.getSafeSymbol()+"_pointers[]={");
1238 Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
1240 while(allit.hasNext()) {
1241 FieldDescriptor fd=(FieldDescriptor)allit.next();
1242 TypeDescriptor type=fd.getType();
1246 output.print(count);
1247 allit=cn.getFieldTable().getAllDescriptorsIterator();
1248 while(allit.hasNext()) {
1249 FieldDescriptor fd=(FieldDescriptor)allit.next();
1253 TypeDescriptor type=fd.getType();
1255 output.println(",");
1256 output.print("((unsigned INTPTR)&(((struct "+cn.getSafeSymbol() +" *)0)->"+
1257 fd.getSafeSymbol()+"))");
1260 output.println("};");
1262 output.println("unsigned INTPTR * pointerarray[]={");
1263 boolean needcomma=false;
1264 for(int i=0; i<state.numClasses(); i++) {
1265 ClassDescriptor cn=cdarray[i];
1267 output.println(",");
1270 output.print(cn.getSafeSymbol()+"_pointers");
1272 output.print("NULL");
1276 for(int i=0; i<state.numArrays(); i++) {
1278 output.println(", ");
1279 TypeDescriptor tdelement=arraytable[i].dereference();
1280 if (tdelement.isArray()||tdelement.isClass())
1281 output.print("((unsigned INTPTR *)1)");
1287 output.println("};");
1289 output.println("int hasflags[]={");
1290 for(int i=0; i<state.numClasses(); i++) {
1291 ClassDescriptor cn=cdarray[i];
1293 output.println(", ");
1295 if ((cn != null) && (cn.hasFlags()))
1300 output.println("};");
1303 private int checkarraysupertype(ClassDescriptor arraycd, TypeDescriptor arraytd) {
1306 TypeDescriptor supertd=new TypeDescriptor(arraycd);
1307 supertd.setArrayCount(arraytd.getArrayCount());
1308 type=state.getArrayNumber(supertd);
1313 ClassDescriptor cd = arraycd.getSuperDesc();
1315 type = checkarraysupertype(cd, arraytd);
1321 Iterator it_sifs = arraycd.getSuperInterfaces();
1322 while(it_sifs.hasNext()) {
1323 ClassDescriptor ifcd = (ClassDescriptor)it_sifs.next();
1324 type = checkarraysupertype(ifcd, arraytd);
1334 /** Print out table to give us supertypes */
1335 protected void generateSuperTypeTable(PrintWriter output) {
1336 ClassDescriptor objectclass=typeutil.getClass(TypeUtil.ObjectClass);
1337 for(int i=0; i<state.numClasses(); i++) {
1338 ClassDescriptor cn=cdarray[i];
1342 output.print("int supertypes" + cn.getSafeSymbol() + "[] = {");
1343 boolean ncomma = false;
1345 if((cn != null) && (cn.getSuperDesc() != null)) {
1348 Iterator it_sifs = cn != null? cn.getSuperInterfaces() : null;
1349 while(it_sifs != null && it_sifs.hasNext()) {
1355 if ((cn != null) && (cn.getSuperDesc()!=null)) {
1359 ClassDescriptor cdsuper=cn.getSuperDesc();
1360 output.print(cdsuper.getId());
1362 it_sifs = cn != null? cn.getSuperInterfaces() : null;
1363 while(it_sifs != null && it_sifs.hasNext()) {
1367 output.print(((ClassDescriptor)it_sifs.next()).getId()+state.numClasses()+state.numArrays());
1370 output.println("};");
1373 for(int i=0; i<state.numArrays(); i++) {
1374 TypeDescriptor arraytd=arraytable[i];
1375 ClassDescriptor arraycd=arraytd.getClassDesc();
1376 output.print("int supertypes___arraytype___" + (i+state.numClasses()) + "[] = {");
1377 boolean ncomma = false;
1379 if (arraycd==null) {
1383 output.print(objectclass.getId());
1384 output.println("};");
1387 if((arraycd != null) && (arraycd.getSuperDesc() != null)) {
1390 Iterator it_sifs = arraycd != null? arraycd.getSuperInterfaces() : null;
1391 while(it_sifs != null && it_sifs.hasNext()) {
1397 if ((arraycd != null) && (arraycd.getSuperDesc()!=null)) {
1398 ClassDescriptor cd=arraycd.getSuperDesc();
1401 type = checkarraysupertype(cd, arraytd);
1403 type += state.numClasses();
1410 it_sifs = arraycd != null? arraycd.getSuperInterfaces() : null;
1411 while(it_sifs != null && it_sifs.hasNext()) {
1412 ClassDescriptor ifcd = (ClassDescriptor)it_sifs.next();
1413 int type = checkarraysupertype(ifcd , arraytd);
1415 type += state.numClasses();
1421 output.println("};");
1424 for(int i=0; i<state.numInterfaces(); i++) {
1425 ClassDescriptor cn=ifarray[i];
1429 output.print("int supertypes" + cn.getSafeSymbol() + "[] = {");
1430 boolean ncomma = false;
1432 if((cn != null) && (cn.getSuperDesc() != null)) {
1435 Iterator it_sifs = cn != null? cn.getSuperInterfaces() : null;
1436 while(it_sifs != null && it_sifs.hasNext()) {
1442 if ((cn != null) && (cn.getSuperDesc()!=null)) {
1446 ClassDescriptor cdsuper=cn.getSuperDesc();
1447 output.print(cdsuper.getId());
1449 it_sifs = cn != null? cn.getSuperInterfaces() : null;
1450 while(it_sifs != null && it_sifs.hasNext()) {
1454 output.print(((ClassDescriptor)it_sifs.next()).getId()+state.numClasses()+state.numArrays());
1457 output.println("};");
1460 output.println("int* supertypes[]={");
1461 boolean needcomma=false;
1462 for(int i=0; i<state.numClasses(); i++) {
1463 ClassDescriptor cn=cdarray[i];
1465 output.println(",");
1468 output.print("supertypes" + cn.getSafeSymbol());
1474 for(int i=0; i<state.numArrays(); i++) {
1476 output.println(",");
1478 output.print("supertypes___arraytype___" + (i+state.numClasses()));
1481 for(int i=0; i<state.numInterfaces(); i++) {
1482 ClassDescriptor cn=ifarray[i];
1484 output.println(",");
1486 output.print("supertypes" + cn.getSafeSymbol());
1488 output.println("};");
1491 /** Force consistent field ordering between inherited classes. */
1493 protected void printClassStruct(ClassDescriptor cn, PrintWriter classdefout, PrintWriter globaldefout, PrintWriter globaldefprimout) {
1495 ClassDescriptor sp=cn.getSuperDesc();
1497 printClassStruct(sp, classdefout, /*globaldefout*/ null, null);
1499 SymbolTable sitbl = cn.getSuperInterfaceTable();
1500 Iterator it_sifs = sitbl.getDescriptorsIterator();
1501 while(it_sifs.hasNext()) {
1502 ClassDescriptor si = (ClassDescriptor)it_sifs.next();
1503 printClassStruct(si, classdefout, /*globaldefout*/ null, null);
1506 if (!fieldorder.containsKey(cn)) {
1507 Vector fields=new Vector();
1508 fieldorder.put(cn,fields);
1510 Vector fieldvec=cn.getFieldVec();
1511 for(int i=0; i<fieldvec.size(); i++) {
1512 FieldDescriptor fd=(FieldDescriptor)fieldvec.get(i);
1513 if((sp != null) && sp.getFieldTable().contains(fd.getSymbol())) {
1516 it_sifs = sitbl.getDescriptorsIterator();
1517 boolean hasprinted = false;
1518 while(it_sifs.hasNext()) {
1519 ClassDescriptor si = (ClassDescriptor)it_sifs.next();
1520 if(si.getFieldTable().contains(fd.getSymbol())) {
1526 // this field has been defined in the super class
1533 //Vector fields=(Vector)fieldorder.get(cn);
1535 Vector fields = cn.getFieldVec();
1537 for(int i=0; i<fields.size(); i++) {
1538 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
1539 String fstring = fd.getSafeSymbol();
1540 if(printedfieldstbl.containsKey(fstring)) {
1541 printedfieldstbl.put(fstring, cn);
1544 printedfieldstbl.put(fstring, cn);
1546 if (fd.getType().isClass()
1547 && fd.getType().getClassDesc().isEnum()) {
1548 classdefout.println(" int " + fd.getSafeSymbol() + ";");
1549 } else if (fd.getType().isClass()||fd.getType().isArray()) {
1550 if (fd.isStatic()) {
1551 // TODO add version for normal Java later
1553 if(globaldefout != null) {
1554 if(fd.isVolatile()) {
1555 globaldefout.println(" volatile struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1557 globaldefout.println(" struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1561 } else if (fd.isVolatile()) {
1563 classdefout.println(" volatile struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1565 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
1567 } else if (fd.isStatic()) {
1568 // TODO add version for normal Java later
1570 if(globaldefout != null) {
1571 if(fd.isVolatile()) {
1572 globaldefprimout.println(" volatile "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1574 globaldefprimout.println(" "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1578 } else if (fd.isVolatile()) {
1580 classdefout.println(" volatile "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1582 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
1587 /* Map flags to integers consistently between inherited
1590 protected void mapFlags(ClassDescriptor cn) {
1591 ClassDescriptor sp=cn.getSuperDesc();
1595 if (!flagorder.containsKey(cn)) {
1596 Hashtable flags=new Hashtable();
1597 flagorder.put(cn,flags);
1599 Hashtable superflags=(Hashtable)flagorder.get(sp);
1600 Iterator superflagit=superflags.keySet().iterator();
1601 while(superflagit.hasNext()) {
1602 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
1603 Integer number=(Integer)superflags.get(fd);
1604 flags.put(fd, number);
1605 if ((number.intValue()+1)>max)
1606 max=number.intValue()+1;
1610 Iterator flagit=cn.getFlags();
1611 while(flagit.hasNext()) {
1612 FlagDescriptor fd=(FlagDescriptor)flagit.next();
1613 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
1614 flags.put(fd, new Integer(max++));
1620 /** This function outputs (1) structures that parameters are
1621 * passed in (when PRECISE GC is enabled) and (2) function
1622 * prototypes for the methods */
1624 protected void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout, PrintWriter globaldefout, PrintWriter globaldefprimout) {
1625 /* Output class structure */
1626 classdefout.println("struct "+cn.getSafeSymbol()+" {");
1627 classdefout.println(" int type;");
1630 additionalClassObjectFields(classdefout);
1633 if (state.EVENTMONITOR) {
1634 classdefout.println(" int objuid;");
1637 classdefout.println(" pthread_t tid;");
1638 classdefout.println(" void * lockentry;");
1639 classdefout.println(" int lockcount;");
1642 classdefout.println(" int mutex;");
1643 classdefout.println(" volatile int notifycount;");
1644 classdefout.println(" int objlock;");
1645 if(state.MULTICOREGC) {
1646 classdefout.println(" int marked;");
1650 classdefout.println(" int flag;");
1651 if((!state.MULTICORE) || (cn.getSymbol().equals("TagDescriptor"))) {
1652 classdefout.println(" void * flagptr;");
1653 } else if (state.MULTICORE) {
1654 classdefout.println(" int version;");
1655 classdefout.println(" int * lock;"); // lock entry for this obj
1656 classdefout.println(" int mutex;");
1657 classdefout.println(" int lockcount;");
1658 if(state.MULTICOREGC) {
1659 classdefout.println(" int marked;");
1662 if (state.OPTIONAL) {
1663 classdefout.println(" int numfses;");
1664 classdefout.println(" int * fses;");
1667 printClassStruct(cn, classdefout, globaldefout, globaldefprimout);
1668 printedfieldstbl.clear(); // = new Hashtable<String, ClassDescriptor>();
1669 classdefout.println("};\n");
1670 generateCallStructsMethods(cn, output, headersout);
1674 protected void generateCallStructsMethods(ClassDescriptor cn, PrintWriter output, PrintWriter headersout) {
1675 for(Iterator methodit=cn.getMethods(); methodit.hasNext(); ) {
1676 MethodDescriptor md=(MethodDescriptor)methodit.next();
1677 Set vec_md = this.state.getMethod2gen().getSet(md.getSymbol());
1678 boolean foundmatch = false;
1679 for(Iterator matchit=vec_md.iterator(); matchit.hasNext();) {
1680 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
1681 if (md.matches(matchmd)) {
1687 generateMethod(cn, md, headersout, output);
1692 protected void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, PrintWriter output) {
1693 /* Output parameter structure */
1694 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1695 if(md.isInvokedByStatic() && !md.isStaticBlock() && !md.getModifiers().isNative()) {
1696 // generate the staticinit version
1697 String mdstring = md.getSafeMethodDescriptor() + "staticinit";
1699 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1700 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_params {");
1701 output.println(" int size;");
1702 output.println(" void * next;");
1703 for(int i=0; i<objectparams.numPointers(); i++) {
1704 TempDescriptor temp=objectparams.getPointer(i);
1705 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1706 output.println(" int " + temp.getSafeSymbol() + ";");
1708 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1711 output.println("};\n");
1714 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1715 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1716 output.println(" int size;");
1717 output.println(" void * next;");
1718 for(int i=0; i<objectparams.numPointers(); i++) {
1719 TempDescriptor temp=objectparams.getPointer(i);
1720 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1721 output.println(" int " + temp.getSafeSymbol() + ";");
1723 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1726 output.println("};\n");
1730 protected void generateMethod(ClassDescriptor cn, MethodDescriptor md, PrintWriter headersout, PrintWriter output) {
1731 FlatMethod fm=state.getMethodFlat(md);
1732 generateTempStructs(fm);
1734 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1735 TempObject objecttemps=(TempObject) tempstable.get(md);
1737 boolean printcomma = false;
1739 generateMethodParam(cn, md, output);
1741 if(md.isInvokedByStatic() && !md.isStaticBlock() && !md.getModifiers().isNative()) {
1742 // generate the staticinit version
1743 String mdstring = md.getSafeMethodDescriptor() + "staticinit";
1745 /* Output temp structure */
1746 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1747 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_locals {");
1748 output.println(" int size;");
1749 output.println(" void * next;");
1750 for(int i=0; i<objecttemps.numPointers(); i++) {
1751 TempDescriptor temp=objecttemps.getPointer(i);
1752 if (temp.getType().isNull())
1753 output.println(" void * "+temp.getSafeSymbol()+";");
1755 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1757 output.println("};\n");
1760 headersout.println("#define D"+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+" 1");
1761 /* First the return type */
1762 if (md.getReturnType()!=null) {
1763 if(md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
1764 headersout.println(" int ");
1765 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
1766 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1768 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1770 //catch the constructor case
1771 headersout.print("void ");
1773 /* Next the method name */
1774 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"(");
1776 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1777 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_params * "+paramsprefix);
1781 /* Output parameter list*/
1782 for(int i=0; i<objectparams.numPrimitives(); i++) {
1783 TempDescriptor temp=objectparams.getPrimitive(i);
1785 headersout.print(", ");
1787 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1788 headersout.print("int " + temp.getSafeSymbol());
1789 } else if (temp.getType().isClass()||temp.getType().isArray())
1790 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1792 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1794 headersout.println(");\n");
1797 /* Output temp structure */
1798 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1799 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1800 output.println(" int size;");
1801 output.println(" void * next;");
1802 for(int i=0; i<objecttemps.numPointers(); i++) {
1803 TempDescriptor temp=objecttemps.getPointer(i);
1804 if (temp.getType().isNull())
1805 output.println(" void * "+temp.getSafeSymbol()+";");
1807 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1809 output.println("};\n");
1812 /********* Output method declaration ***********/
1813 headersout.println("#define D"+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+" 1");
1814 /* First the return type */
1815 if (md.getReturnType()!=null) {
1816 if(md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
1817 headersout.println(" int ");
1818 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
1819 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1821 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1823 //catch the constructor case
1824 headersout.print("void ");
1826 /* Next the method name */
1827 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1829 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1830 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1834 /* Output parameter list*/
1835 for(int i=0; i<objectparams.numPrimitives(); i++) {
1836 TempDescriptor temp=objectparams.getPrimitive(i);
1838 headersout.print(", ");
1840 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1841 headersout.print("int " + temp.getSafeSymbol());
1842 } else if (temp.getType().isClass()||temp.getType().isArray())
1843 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1845 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1847 headersout.println(");\n");
1851 /** This function outputs (1) structures that parameters are
1852 * passed in (when PRECISE GC is enabled) and (2) function
1853 * prototypes for the tasks */
1855 protected void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1856 /* Cycle through tasks */
1857 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1859 while(taskit.hasNext()) {
1860 /* Classify parameters */
1861 TaskDescriptor task=(TaskDescriptor)taskit.next();
1862 FlatMethod fm=state.getMethodFlat(task);
1863 generateTempStructs(fm);
1865 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1866 TempObject objecttemps=(TempObject) tempstable.get(task);
1868 /* Output parameter structure */
1869 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1870 output.println("struct "+task.getSafeSymbol()+"_params {");
1871 output.println(" int size;");
1872 output.println(" void * next;");
1873 for(int i=0; i<objectparams.numPointers(); i++) {
1874 TempDescriptor temp=objectparams.getPointer(i);
1875 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1878 output.println("};\n");
1879 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1880 maxtaskparams=objectparams.numPointers()+fm.numTags();
1884 /* Output temp structure */
1885 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1886 output.println("struct "+task.getSafeSymbol()+"_locals {");
1887 output.println(" int size;");
1888 output.println(" void * next;");
1889 for(int i=0; i<objecttemps.numPointers(); i++) {
1890 TempDescriptor temp=objecttemps.getPointer(i);
1891 if (temp.getType().isNull())
1892 output.println(" void * "+temp.getSafeSymbol()+";");
1893 else if(temp.getType().isTag())
1894 output.println(" struct "+
1895 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1897 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1899 output.println("};\n");
1902 /* Output task declaration */
1903 headersout.print("void " + task.getSafeSymbol()+"(");
1905 boolean printcomma=false;
1906 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1907 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1909 headersout.print("void * parameterarray[]");
1910 headersout.println(");\n");
1914 protected void generateFlatMethod(FlatMethod fm, PrintWriter output) {
1915 if (State.PRINTFLAT)
1916 System.out.println(fm.printMethod());
1917 MethodDescriptor md=fm.getMethod();
1918 TaskDescriptor task=fm.getTask();
1919 ClassDescriptor cn=md!=null ? md.getClassDesc() : null;
1920 ParamsObject objectparams=(ParamsObject)paramstable.get(md!=null ? md : task);
1922 if((md != null) && md.isInvokedByStatic() && !md.isStaticBlock() && !md.getModifiers().isNative()) {
1923 // generate a special static init version
1924 mgcstaticinit = true;
1925 String mdstring = md.getSafeMethodDescriptor() + "staticinit";
1927 generateHeader(fm, md!=null ? md : task,output);
1928 TempObject objecttemp=(TempObject) tempstable.get(md!=null ? md : task);
1930 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1931 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_locals "+localsprefix+"={");
1932 output.print(objecttemp.numPointers()+",");
1933 output.print(paramsprefix);
1934 for(int j=0; j<objecttemp.numPointers(); j++)
1935 output.print(", NULL");
1936 output.println("};");
1939 for(int i=0; i<objecttemp.numPrimitives(); i++) {
1940 TempDescriptor td=objecttemp.getPrimitive(i);
1941 TypeDescriptor type=td.getType();
1942 if (type.isNull() && !type.isArray())
1943 output.println(" void * "+td.getSafeSymbol()+";");
1944 else if (type.isClass() && type.getClassDesc().isEnum()) {
1945 output.println(" int " + td.getSafeSymbol() + ";");
1946 } else if (type.isClass()||type.isArray())
1947 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1949 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1952 additionalCodeAtTopFlatMethodBody(output, fm);
1954 /* Check to see if we need to do a GC if this is a
1955 * multi-threaded program...*/
1957 if (((state.OOOJAVA||state.THREAD)&&GENERATEPRECISEGC)
1958 || this.state.MULTICOREGC) {
1959 //Don't bother if we aren't in recursive methods...The loops case will catch it
1960 if (callgraph.getAllMethods(md).contains(md)) {
1961 if (this.state.MULTICOREGC) {
1962 output.println("if(gcflag) gc("+localsprefixaddr+");");
1964 output.println("if (unlikely(needtocollect)) checkcollect("+localsprefixaddr+");");
1969 generateCode(fm.getNext(0), fm, null, output);
1971 output.println("}\n\n");
1973 mgcstaticinit = false;
1976 generateHeader(fm, md!=null ? md : task,output);
1977 TempObject objecttemp=(TempObject) tempstable.get(md!=null ? md : task);
1979 if((md != null) && (md.isStaticBlock())) {
1980 mgcstaticinit = true;
1983 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1985 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1987 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
1988 output.print(objecttemp.numPointers()+",");
1989 output.print(paramsprefix);
1990 for(int j=0; j<objecttemp.numPointers(); j++)
1991 output.print(", NULL");
1992 output.println("};");
1995 for(int i=0; i<objecttemp.numPrimitives(); i++) {
1996 TempDescriptor td=objecttemp.getPrimitive(i);
1997 TypeDescriptor type=td.getType();
1998 if (type.isNull() && !type.isArray())
1999 output.println(" void * "+td.getSafeSymbol()+";");
2000 else if (type.isClass() && type.getClassDesc().isEnum()) {
2001 output.println(" int " + td.getSafeSymbol() + ";");
2002 } else if (type.isClass()||type.isArray())
2003 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
2005 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
2008 additionalCodeAtTopFlatMethodBody(output, fm);
2010 /* Check to see if we need to do a GC if this is a
2011 * multi-threaded program...*/
2013 if (((state.OOOJAVA||state.THREAD)&&GENERATEPRECISEGC)
2014 || this.state.MULTICOREGC) {
2015 //Don't bother if we aren't in recursive methods...The loops case will catch it
2016 if (callgraph.getAllMethods(md).contains(md)) {
2017 if (this.state.MULTICOREGC) {
2018 output.println("if(gcflag) gc("+localsprefixaddr+");");
2020 output.println("if (unlikely(needtocollect)) checkcollect("+localsprefixaddr+");");
2025 if(fm.getMethod().isStaticBlock()) {
2026 // a static block, check if it has been executed
2027 output.println(" if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag != 0) {");
2028 output.println(" return;");
2029 output.println(" }");
2033 generateCode(fm.getNext(0), fm, null, output);
2035 output.println("}\n\n");
2037 mgcstaticinit = false;
2040 protected void generateCode(FlatNode first,
2042 Set<FlatNode> stopset,
2043 PrintWriter output) {
2045 /* Assign labels to FlatNode's if necessary.*/
2047 Hashtable<FlatNode, Integer> nodetolabel;
2049 nodetolabel=assignLabels(first, stopset);
2051 Set<FlatNode> storeset=null;
2052 HashSet<FlatNode> genset=null;
2053 HashSet<FlatNode> refset=null;
2054 Set<FlatNode> unionset=null;
2056 /* Do the actual code generation */
2057 FlatNode current_node=null;
2058 HashSet tovisit=new HashSet();
2059 HashSet visited=new HashSet();
2061 while(current_node!=null||!tovisit.isEmpty()) {
2062 if (current_node==null) {
2063 current_node=(FlatNode)tovisit.iterator().next();
2064 tovisit.remove(current_node);
2065 } else if (tovisit.contains(current_node)) {
2066 tovisit.remove(current_node);
2068 visited.add(current_node);
2069 if (nodetolabel.containsKey(current_node)) {
2070 output.println("L"+nodetolabel.get(current_node)+":");
2072 if (state.INSTRUCTIONFAILURE) {
2074 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
2076 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
2078 if (current_node.numNext()==0||stopset!=null&&stopset.contains(current_node)) {
2080 generateFlatNode(fm, current_node, output);
2082 if (state.OOOJAVA && stopset!=null) {
2083 assert first.getPrev(0) instanceof FlatSESEEnterNode;
2084 assert current_node instanceof FlatSESEExitNode;
2085 FlatSESEEnterNode fsen = (FlatSESEEnterNode) first.getPrev(0);
2086 FlatSESEExitNode fsxn = (FlatSESEExitNode) current_node;
2087 assert fsen.getFlatExit().equals(fsxn);
2088 assert fsxn.getFlatEnter().equals(fsen);
2090 if (current_node.kind()!=FKind.FlatReturnNode) {
2091 if((fm.getMethod() != null) && (fm.getMethod().isStaticBlock())) {
2092 // a static block, check if it has been executed
2093 output.println(" global_defsprim_p->" + fm.getMethod().getClassDesc().getSafeSymbol()+"static_block_exe_flag = 1;");
2096 output.println(" return;");
2099 } else if(current_node.numNext()==1) {
2101 if (state.OOOJAVA &&
2102 current_node.kind()==FKind.FlatSESEEnterNode) {
2103 FlatSESEEnterNode fsen = (FlatSESEEnterNode)current_node;
2104 generateFlatNode(fm, current_node, output);
2105 nextnode=fsen.getFlatExit().getNext(0);
2108 generateFlatNode(fm, current_node, output);
2109 nextnode=current_node.getNext(0);
2111 if (visited.contains(nextnode)) {
2112 output.println("goto L"+nodetolabel.get(nextnode)+";");
2115 current_node=nextnode;
2116 } else if (current_node.numNext()==2) {
2119 generateFlatCondBranch(fm, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
2120 if (!visited.contains(current_node.getNext(1)))
2121 tovisit.add(current_node.getNext(1));
2122 if (visited.contains(current_node.getNext(0))) {
2123 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
2126 current_node=current_node.getNext(0);
2127 } else throw new Error();
2131 protected Hashtable<FlatNode, Integer> assignLabels(FlatNode first, Set<FlatNode> lastset) {
2132 HashSet tovisit=new HashSet();
2133 HashSet visited=new HashSet();
2135 Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
2138 /*Assign labels first. A node needs a label if the previous
2139 * node has two exits or this node is a join point. */
2141 while(!tovisit.isEmpty()) {
2142 FlatNode fn=(FlatNode)tovisit.iterator().next();
2147 if(lastset!=null&&lastset.contains(fn)) {
2148 // if last is not null and matches, don't go
2149 // any further for assigning labels
2153 for(int i=0; i<fn.numNext(); i++) {
2154 FlatNode nn=fn.getNext(i);
2157 //1) Edge >1 of node
2158 nodetolabel.put(nn,new Integer(labelindex++));
2160 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
2164 nodetolabel.put(nn,new Integer(labelindex++));
2171 /** Generate text string that corresponds to the TempDescriptor td. */
2172 protected String generateTemp(FlatMethod fm, TempDescriptor td) {
2173 MethodDescriptor md=fm.getMethod();
2174 TaskDescriptor task=fm.getTask();
2175 TempObject objecttemps=(TempObject) tempstable.get(md!=null ? md : task);
2177 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
2178 return td.getSafeSymbol();
2181 if (objecttemps.isLocalPtr(td)) {
2182 return localsprefixderef+td.getSafeSymbol();
2185 if (objecttemps.isParamPtr(td)) {
2186 return paramsprefix+"->"+td.getSafeSymbol();
2194 protected void generateFlatNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
2195 additionalCodePreNode(fm, fn, output);
2199 case FKind.FlatAtomicEnterNode:
2200 generateFlatAtomicEnterNode(fm, (FlatAtomicEnterNode) fn, output);
2203 case FKind.FlatAtomicExitNode:
2204 generateFlatAtomicExitNode(fm, (FlatAtomicExitNode) fn, output);
2207 case FKind.FlatInstanceOfNode:
2208 generateFlatInstanceOfNode(fm, (FlatInstanceOfNode)fn, output);
2211 case FKind.FlatSESEEnterNode:
2212 generateFlatSESEEnterNode(fm, (FlatSESEEnterNode)fn, output);
2215 case FKind.FlatSESEExitNode:
2216 generateFlatSESEExitNode(fm, (FlatSESEExitNode)fn, output);
2219 case FKind.FlatWriteDynamicVarNode:
2220 generateFlatWriteDynamicVarNode(fm, (FlatWriteDynamicVarNode)fn, output);
2223 case FKind.FlatGlobalConvNode:
2224 generateFlatGlobalConvNode(fm, (FlatGlobalConvNode) fn, output);
2227 case FKind.FlatTagDeclaration:
2228 generateFlatTagDeclaration(fm, (FlatTagDeclaration) fn,output);
2231 case FKind.FlatCall:
2232 generateFlatCall(fm, (FlatCall) fn,output);
2235 case FKind.FlatFieldNode:
2236 generateFlatFieldNode(fm, (FlatFieldNode) fn,output);
2239 case FKind.FlatElementNode:
2240 generateFlatElementNode(fm, (FlatElementNode) fn,output);
2243 case FKind.FlatSetElementNode:
2244 generateFlatSetElementNode(fm, (FlatSetElementNode) fn,output);
2247 case FKind.FlatSetFieldNode:
2248 generateFlatSetFieldNode(fm, (FlatSetFieldNode) fn,output);
2252 generateFlatNew(fm, (FlatNew) fn,output);
2255 case FKind.FlatOpNode:
2256 generateFlatOpNode(fm, (FlatOpNode) fn,output);
2259 case FKind.FlatCastNode:
2260 generateFlatCastNode(fm, (FlatCastNode) fn,output);
2263 case FKind.FlatLiteralNode:
2264 generateFlatLiteralNode(fm, (FlatLiteralNode) fn,output);
2267 case FKind.FlatReturnNode:
2268 generateFlatReturnNode(fm, (FlatReturnNode) fn,output);
2272 output.println("/* nop */");
2275 case FKind.FlatGenReachNode:
2276 // this node is just for generating a reach graph
2277 // in disjointness analysis at a particular program point
2280 case FKind.FlatExit:
2281 output.println("/* exit */");
2284 case FKind.FlatBackEdge:
2285 generateFlatBackEdge(fm, (FlatBackEdge)fn, output);
2288 case FKind.FlatCheckNode:
2289 generateFlatCheckNode(fm, (FlatCheckNode) fn, output);
2292 case FKind.FlatFlagActionNode:
2293 generateFlatFlagActionNode(fm, (FlatFlagActionNode) fn, output);
2296 case FKind.FlatPrefetchNode:
2297 generateFlatPrefetchNode(fm, (FlatPrefetchNode) fn, output);
2300 case FKind.FlatOffsetNode:
2301 generateFlatOffsetNode(fm, (FlatOffsetNode)fn, output);
2308 additionalCodePostNode(fm, fn, output);
2311 public void generateFlatBackEdge(FlatMethod fm, FlatBackEdge fn, PrintWriter output) {
2312 if (((state.OOOJAVA||state.THREAD)&&GENERATEPRECISEGC)
2313 || (this.state.MULTICOREGC)) {
2314 if(this.state.MULTICOREGC) {
2315 output.println("if (gcflag) gc("+localsprefixaddr+");");
2317 output.println("if (unlikely(needtocollect)) checkcollect("+localsprefixaddr+");");
2320 output.println("/* nop */");
2323 public void generateFlatOffsetNode(FlatMethod fm, FlatOffsetNode fofn, PrintWriter output) {
2324 output.println("/* FlatOffsetNode */");
2325 FieldDescriptor fd=fofn.getField();
2326 if(!fd.isStatic()) {
2327 output.println(generateTemp(fm, fofn.getDst())+ " = (short)(int) (&((struct "+fofn.getClassType().getSafeSymbol() +" *)0)->"+
2328 fd.getSafeSymbol()+");");
2330 output.println("/* offset */");
2333 public void generateFlatPrefetchNode(FlatMethod fm, FlatPrefetchNode fpn, PrintWriter output) {
2336 public void generateFlatGlobalConvNode(FlatMethod fm, FlatGlobalConvNode fgcn, PrintWriter output) {
2339 public void generateFlatInstanceOfNode(FlatMethod fm, FlatInstanceOfNode fion, PrintWriter output) {
2342 if (fion.getType().isArray()) {
2343 type=state.getArrayNumber(fion.getType())+state.numClasses();
2344 } else if (fion.getType().getClassDesc().isInterface()) {
2345 type=fion.getType().getClassDesc().getId()+state.numClasses()+state.numArrays();
2347 type=fion.getType().getClassDesc().getId();
2349 if (fion.getSrc().getType().isArray()) {
2350 otype=state.getArrayNumber(fion.getSrc().getType())+state.numClasses();
2351 } else if (fion.getSrc().getType().getClassDesc().isInterface()) {
2352 otype=fion.getSrc().getType().getClassDesc().getId()+state.numClasses()+state.numArrays();
2354 otype=fion.getSrc().getType().getClassDesc().getId();
2357 if (fion.getType().getSymbol().equals(TypeUtil.ObjectClass))
2358 output.println(generateTemp(fm, fion.getDst())+"=(" + generateTemp(fm,fion.getSrc()) + "!= NULL);");
2360 output.println(generateTemp(fm, fion.getDst())+"=instanceof("+generateTemp(fm,fion.getSrc())+","+type+");");
2364 public void generateFlatAtomicEnterNode(FlatMethod fm, FlatAtomicEnterNode faen, PrintWriter output) {
2367 public void generateFlatAtomicExitNode(FlatMethod fm, FlatAtomicExitNode faen, PrintWriter output) {
2370 public void generateFlatSESEEnterNode(FlatMethod fm,
2371 FlatSESEEnterNode fsen,
2372 PrintWriter output) {
2373 // if OOOJAVA flag is off, okay that SESE nodes are in IR graph,
2374 // just skip over them and code generates exactly the same
2377 public void generateFlatSESEExitNode(FlatMethod fm,
2378 FlatSESEExitNode fsexn,
2379 PrintWriter output) {
2380 // if OOOJAVA flag is off, okay that SESE nodes are in IR graph,
2381 // just skip over them and code generates exactly the same
2384 public void generateFlatWriteDynamicVarNode(FlatMethod fm,
2385 FlatWriteDynamicVarNode fwdvn,
2386 PrintWriter output) {
2390 protected void generateFlatCheckNode(FlatMethod fm, FlatCheckNode fcn, PrintWriter output) {
2391 if (state.CONSCHECK) {
2392 String specname=fcn.getSpec();
2393 String varname="repairstate___";
2394 output.println("{");
2395 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
2397 TempDescriptor[] temps=fcn.getTemps();
2398 String[] vars=fcn.getVars();
2399 for(int i=0; i<temps.length; i++) {
2400 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i])+";");
2403 output.println("if (doanalysis"+specname+"("+varname+")) {");
2404 output.println("free"+specname+"_state("+varname+");");
2405 output.println("} else {");
2406 output.println("/* Bad invariant */");
2407 output.println("free"+specname+"_state("+varname+");");
2408 output.println("abort_task();");
2409 output.println("}");
2410 output.println("}");
2414 protected void generateFlatCall(FlatMethod fm, FlatCall fc, PrintWriter output) {
2415 MethodDescriptor md=fc.getMethod();
2416 ParamsObject objectparams=(ParamsObject)paramstable.get(md);
2417 ClassDescriptor cn=md.getClassDesc();
2418 String mdstring = md.getSafeMethodDescriptor();
2419 if(mgcstaticinit && !md.isStaticBlock() && !md.getModifiers().isNative()) {
2420 mdstring += "staticinit";
2423 // if the called method is a static block or a static method or a constructor
2424 // need to check if it can be invoked inside some static block
2425 if((md.isStatic() || md.isStaticBlock() || md.isConstructor()) &&
2426 ((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic()))) {
2427 if(!md.isInvokedByStatic()) {
2428 System.err.println("Error: a method that is invoked inside a static block is not tagged!");
2430 // is a static block or is invoked in some static block
2431 ClassDescriptor cd = fm.getMethod().getClassDesc();
2433 // the same class, do nothing
2434 } else if(mgcstaticinit) {
2435 // generate static init check code if it has not done static init in main()
2436 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2437 // need to check if the class' static fields have been initialized and/or
2438 // its static blocks have been executed
2439 output.println("if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2440 if(cn.getNumStaticBlocks() != 0) {
2441 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2442 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2444 output.println(" global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2446 output.println("}");
2450 if((md.getSymbol().equals("MonitorEnter") || md.getSymbol().equals("MonitorExit")) && fc.getThis().getSymbol().equals("classobj")) {
2451 // call MonitorEnter/MonitorExit on a class obj
2452 output.println(" " + cn.getSafeSymbol()+md.getSafeSymbol()+"_"
2453 + md.getSafeMethodDescriptor() + "((struct ___Object___*)(global_defs_p->"
2454 + fc.getThis().getType().getClassDesc().getSafeSymbol() +"classobj));");
2458 output.println("{");
2459 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2460 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_params __parameterlist__={");
2461 output.print(objectparams.numPointers());
2462 output.print(", "+localsprefixaddr);
2463 if (md.getThis()!=null) {
2465 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis()));
2467 if (fc.getThis()!=null&&md.getThis()==null) {
2468 System.out.println("WARNING!!!!!!!!!!!!");
2469 System.out.println("Source code calls static method "+md+" on an object in "+fm.getMethod()+"!");
2473 for(int i=0; i<fc.numArgs(); i++) {
2474 Descriptor var=md.getParameter(i);
2475 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
2476 if (objectparams.isParamPtr(paramtemp)) {
2477 TempDescriptor targ=fc.getArg(i);
2479 TypeDescriptor td=md.getParamType(i);
2481 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ));
2483 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ));
2486 output.println("};");
2491 if (fc.getReturnTemp()!=null)
2492 output.print(generateTemp(fm,fc.getReturnTemp())+"=");
2494 /* Do we need to do virtual dispatch? */
2495 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
2497 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring);
2501 if (md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
2502 output.print("int ");
2503 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
2504 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2506 output.print(md.getReturnType().getSafeSymbol()+" ");
2507 output.print("(*)(");
2509 boolean printcomma=false;
2510 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2511 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_params * ");
2515 for(int i=0; i<objectparams.numPrimitives(); i++) {
2516 TempDescriptor temp=objectparams.getPrimitive(i);
2520 if (temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
2521 output.print("int ");
2522 } else if (temp.getType().isClass()||temp.getType().isArray())
2523 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
2525 output.print(temp.getType().getSafeSymbol());
2529 output.print("))virtualtable["+generateTemp(fm,fc.getThis())+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
2533 boolean needcomma=false;
2534 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2535 output.print("&__parameterlist__");
2539 if (!GENERATEPRECISEGC && !this.state.MULTICOREGC) {
2540 if (fc.getThis()!=null) {
2541 TypeDescriptor ptd=null;
2542 if(md.getThis() != null) {
2543 ptd = md.getThis().getType();
2545 ptd = fc.getThis().getType();
2549 if(ptd.isClass() && ptd.getClassDesc().isEnum()) {
2551 } else if (ptd.isClass()&&!ptd.isArray())
2552 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
2553 output.print(generateTemp(fm,fc.getThis()));
2558 for(int i=0; i<fc.numArgs(); i++) {
2559 Descriptor var=md.getParameter(i);
2560 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
2561 if (objectparams.isParamPrim(paramtemp)) {
2562 TempDescriptor targ=fc.getArg(i);
2566 TypeDescriptor ptd=md.getParamType(i);
2567 if (ptd.isClass() && ptd.getClassDesc().isEnum()) {
2569 } else if (ptd.isClass()&&!ptd.isArray())
2570 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
2571 output.print(generateTemp(fm, targ));
2575 output.println(");");
2576 output.println(" }");
2579 protected boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
2580 if(thiscd.isInterface()) {
2581 // for interfaces, always need virtual dispatch
2584 Set subclasses=typeutil.getSubClasses(thiscd);
2585 if (subclasses==null)
2587 for(Iterator classit=subclasses.iterator(); classit.hasNext(); ) {
2588 ClassDescriptor cd=(ClassDescriptor)classit.next();
2589 Set possiblematches=cd.getMethodTable().getSetFromSameScope(md.getSymbol());
2590 for(Iterator matchit=possiblematches.iterator(); matchit.hasNext(); ) {
2591 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
2592 if (md.matches(matchmd))
2600 protected void generateFlatFieldNode(FlatMethod fm, FlatFieldNode ffn, PrintWriter output) {
2601 if(ffn.getField().isStatic()) {
2603 if((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic())) {
2604 // is a static block or is invoked in some static block
2605 ClassDescriptor cd = fm.getMethod().getClassDesc();
2606 ClassDescriptor cn = ffn.getSrc().getType().getClassDesc();
2608 // the same class, do nothing
2609 } else if(mgcstaticinit) {
2610 // generate the static init check code if has not done the static init in main()
2611 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2612 // need to check if the class' static fields have been initialized and/or
2613 // its static blocks have been executed
2614 output.println("if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2615 if(cn.getNumStaticBlocks() != 0) {
2616 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2617 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2619 output.println(" global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2621 output.println("}");
2625 // redirect to the global_defs_p structure
2626 if((ffn.getField().isStatic()) || (ffn.getSrc().getType().isClassNameRef())) {
2627 // reference to the static field with Class name
2628 if (ffn.getField().getType().isPtr())
2629 output.println(generateTemp(fm, ffn.getDst())+"=global_defs_p->"+ffn.getField().getSafeSymbol()+";");
2631 output.println(generateTemp(fm, ffn.getDst())+"=global_defsprim_p->"+ffn.getField().getSafeSymbol()+";");
2633 output.println(generateTemp(fm, ffn.getDst())+"=*"+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
2635 } else if (ffn.getField().isEnum()) {
2636 // an Enum value, directly replace the field access as int
2637 output.println(generateTemp(fm, ffn.getDst()) + "=" + ffn.getField().enumValue() + ";");
2639 output.println(generateTemp(fm, ffn.getDst())+"="+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
2644 protected void generateFlatSetFieldNode(FlatMethod fm, FlatSetFieldNode fsfn, PrintWriter output) {
2645 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
2646 throw new Error("Can't set array length");
2647 if (state.FASTCHECK) {
2648 String dst=generateTemp(fm, fsfn.getDst());
2649 output.println("if(!"+dst+"->"+localcopystr+") {");
2650 /* Link object into list */
2651 if (GENERATEPRECISEGC || this.state.MULTICOREGC)
2652 output.println("COPY_OBJ((struct garbagelist *)"+localsprefixaddr+",(struct ___Object___ *)"+dst+");");
2654 output.println("COPY_OBJ("+dst+");");
2655 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2656 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2657 output.println("}");
2660 if(fsfn.getField().isStatic()) {
2662 if((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic())) {
2663 // is a static block or is invoked in some static block
2664 ClassDescriptor cd = fm.getMethod().getClassDesc();
2665 ClassDescriptor cn = fsfn.getDst().getType().getClassDesc();
2667 // the same class, do nothing
2668 } else if(mgcstaticinit){
2669 // generate static init check code if has not done the static init in main()
2670 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2671 // need to check if the class' static fields have been initialized and/or
2672 // its static blocks have been executed
2673 output.println("if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2674 if(cn.getNumStaticBlocks() != 0) {
2675 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2676 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2678 output.println(" global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2680 output.println("}");
2684 // redirect to the global_defs_p structure
2685 if((fsfn.getDst().getType().isClassNameRef()) || (fsfn.getField().isStatic())) {
2686 // reference to the static field with Class name
2687 if (fsfn.getField().getType().isPtr())
2688 output.println("global_defs_p->" +
2689 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2691 output.println("global_defsprim_p->" +
2692 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2694 output.println("*"+generateTemp(fm, fsfn.getDst())+"->"+
2695 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2698 output.println(generateTemp(fm, fsfn.getDst())+"->"+
2699 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2704 protected void generateFlatElementNode(FlatMethod fm, FlatElementNode fen, PrintWriter output) {
2705 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
2708 if (elementtype.isClass() && elementtype.getClassDesc().isEnum()) {
2710 } else if (elementtype.isArray()||elementtype.isClass())
2713 type=elementtype.getSafeSymbol()+" ";
2715 if (this.state.ARRAYBOUNDARYCHECK && fen.needsBoundsCheck()) {
2716 output.println("if (unlikely(((unsigned int)"+generateTemp(fm, fen.getIndex())+") >= "+generateTemp(fm,fen.getSrc()) + "->___length___))");
2717 output.println("failedboundschk();");
2719 output.println(generateTemp(fm, fen.getDst())+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc())+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex())+"];");
2722 protected void generateFlatSetElementNode(FlatMethod fm, FlatSetElementNode fsen, PrintWriter output) {
2723 //TODO: need dynamic check to make sure this assignment is actually legal
2724 //Because Object[] could actually be something more specific...ie. Integer[]
2726 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2729 if (elementtype.isClass() && elementtype.getClassDesc().isEnum()) {
2731 } else if (elementtype.isArray()||elementtype.isClass() || (elementtype.isNull()))
2734 type=elementtype.getSafeSymbol()+" ";
2736 if (this.state.ARRAYBOUNDARYCHECK && fsen.needsBoundsCheck()) {
2737 output.println("if (unlikely(((unsigned int)"+generateTemp(fm, fsen.getIndex())+") >= "+generateTemp(fm,fsen.getDst()) + "->___length___))");
2738 output.println("failedboundschk();");
2740 if (state.FASTCHECK) {
2741 String dst=generateTemp(fm, fsen.getDst());
2742 output.println("if(!"+dst+"->"+localcopystr+") {");
2743 /* Link object into list */
2744 if (GENERATEPRECISEGC || this.state.MULTICOREGC)
2745 output.println("COPY_OBJ((struct garbagelist *)"+localsprefixaddr+",(struct ___Object___ *)"+dst+");");
2747 output.println("COPY_OBJ("+dst+");");
2748 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2749 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2750 output.println("}");
2752 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst())+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex())+"]="+generateTemp(fm,fsen.getSrc())+";");
2756 protected void generateFlatNew(FlatMethod fm, FlatNew fn, PrintWriter output) {
2757 if (fn.getType().isArray()) {
2758 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2759 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2760 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+localsprefixaddr+", "+arrayid+", "+generateTemp(fm, fn.getSize())+");");
2762 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize())+");");
2765 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2766 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+localsprefixaddr+", "+fn.getType().getClassDesc().getId()+");");
2768 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2771 if (state.FASTCHECK) {
2772 String dst=generateTemp(fm,fn.getDst());
2773 output.println(dst+"->___localcopy___=(struct ___Object___*)1;");
2774 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2775 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2779 protected void generateFlatTagDeclaration(FlatMethod fm, FlatTagDeclaration fn, PrintWriter output) {
2780 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2781 output.println(generateTemp(fm,fn.getDst())+"=allocate_tag("+localsprefixaddr+", "+state.getTagId(fn.getType())+");");
2783 output.println(generateTemp(fm,fn.getDst())+"=allocate_tag("+state.getTagId(fn.getType())+");");
2787 protected void generateFlatOpNode(FlatMethod fm, FlatOpNode fon, PrintWriter output) {
2788 if (fon.getRight()!=null) {
2789 if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2790 if (fon.getLeft().getType().isLong())
2791 output.println(generateTemp(fm, fon.getDest())+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft())+")>>"+generateTemp(fm,fon.getRight())+";");
2793 output.println(generateTemp(fm, fon.getDest())+" = ((unsigned int)"+generateTemp(fm, fon.getLeft())+")>>"+generateTemp(fm,fon.getRight())+";");
2796 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+fon.getOp().toString()+generateTemp(fm,fon.getRight())+";");
2797 } else if (fon.getOp().getOp()==Operation.ASSIGN)
2798 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
2799 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2800 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
2801 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2802 output.println(generateTemp(fm, fon.getDest())+" = -"+generateTemp(fm, fon.getLeft())+";");
2803 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2804 output.println(generateTemp(fm, fon.getDest())+" = !"+generateTemp(fm, fon.getLeft())+";");
2805 else if (fon.getOp().getOp()==Operation.COMP)
2806 output.println(generateTemp(fm, fon.getDest())+" = ~"+generateTemp(fm, fon.getLeft())+";");
2807 else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2808 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+"->fses==NULL;");
2810 output.println(generateTemp(fm, fon.getDest())+fon.getOp().toString()+generateTemp(fm, fon.getLeft())+";");
2813 protected void generateFlatCastNode(FlatMethod fm, FlatCastNode fcn, PrintWriter output) {
2814 /* TODO: Do type check here */
2815 if (fcn.getType().isArray()) {
2816 output.println(generateTemp(fm,fcn.getDst())+"=(struct ArrayObject *)"+generateTemp(fm,fcn.getSrc())+";");
2817 } else if (fcn.getType().isClass() && fcn.getType().getClassDesc().isEnum()) {
2818 output.println(generateTemp(fm,fcn.getDst())+"=(int)"+generateTemp(fm,fcn.getSrc())+";");
2819 } else if (fcn.getType().isClass())
2820 output.println(generateTemp(fm,fcn.getDst())+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc())+";");
2822 output.println(generateTemp(fm,fcn.getDst())+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc())+";");
2825 protected void generateFlatLiteralNode(FlatMethod fm, FlatLiteralNode fln, PrintWriter output) {
2826 if (fln.getValue()==null)
2827 output.println(generateTemp(fm, fln.getDst())+"=0;");
2828 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2829 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2830 output.println(generateTemp(fm, fln.getDst())+"=NewString("+localsprefixaddr+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2832 output.println(generateTemp(fm, fln.getDst())+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2834 } else if (fln.getType().isBoolean()) {
2835 if (((Boolean)fln.getValue()).booleanValue())
2836 output.println(generateTemp(fm, fln.getDst())+"=1;");
2838 output.println(generateTemp(fm, fln.getDst())+"=0;");
2839 } else if (fln.getType().isChar()) {
2840 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2841 output.println(generateTemp(fm, fln.getDst())+"='"+st+"';");
2842 } else if (fln.getType().isLong()) {
2843 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+"LL;");
2845 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+";");
2848 protected void generateFlatReturnNode(FlatMethod fm, FlatReturnNode frn, PrintWriter output) {
2849 if((fm.getMethod() != null) && (fm.getMethod().isStaticBlock())) {
2850 // a static block, check if it has been executed
2851 output.println(" global_defsprim_p->" + fm.getMethod().getClassDesc().getSafeSymbol()+"static_block_exe_flag = 1;");
2855 if (frn.getReturnTemp()!=null) {
2856 if (frn.getReturnTemp().getType().isPtr())
2857 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp())+";");
2859 output.println("return "+generateTemp(fm, frn.getReturnTemp())+";");
2861 output.println("return;");
2865 protected void generateFlatCondBranch(FlatMethod fm, FlatCondBranch fcb, String label, PrintWriter output) {
2866 output.println("if (!"+generateTemp(fm, fcb.getTest())+") goto "+label+";");
2869 /** This method generates header information for the method or
2870 * task referenced by the Descriptor des. */
2871 protected void generateHeader(FlatMethod fm, Descriptor des, PrintWriter output) {
2872 generateHeader(fm, des, output, false);
2875 protected void generateHeader(FlatMethod fm, Descriptor des, PrintWriter output, boolean addSESErecord) {
2877 ParamsObject objectparams=(ParamsObject)paramstable.get(des);
2878 MethodDescriptor md=null;
2879 TaskDescriptor task=null;
2880 if (des instanceof MethodDescriptor)
2881 md=(MethodDescriptor) des;
2883 task=(TaskDescriptor) des;
2884 String mdstring = md != null ? md.getSafeMethodDescriptor() : null;
2886 ClassDescriptor cn=md!=null ? md.getClassDesc() : null;
2888 if (md!=null&&md.getReturnType()!=null) {
2889 if (md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
2890 output.print("int ");
2891 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
2892 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2894 output.print(md.getReturnType().getSafeSymbol()+" ");
2896 //catch the constructor case
2897 output.print("void ");
2899 if(mgcstaticinit && !md.isStaticBlock() && !md.getModifiers().isNative()) {
2900 mdstring += "staticinit";
2902 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"(");
2904 output.print(task.getSafeSymbol()+"(");
2906 boolean printcomma=false;
2907 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2909 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+mdstring+"_params * "+paramsprefix);
2911 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2917 for(int i=0; i<objectparams.numPrimitives(); i++) {
2918 TempDescriptor temp=objectparams.getPrimitive(i);
2922 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
2923 output.print("int " + temp.getSafeSymbol());
2924 } else if (temp.getType().isClass()||temp.getType().isArray())
2925 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2927 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2929 output.println(") {");
2930 } else if (!GENERATEPRECISEGC && !this.state.MULTICOREGC) {
2931 /* Imprecise Task */
2932 output.println("void * parameterarray[]) {");
2933 /* Unpack variables */
2934 for(int i=0; i<objectparams.numPrimitives(); i++) {
2935 TempDescriptor temp=objectparams.getPrimitive(i);
2936 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
2937 output.print("int " + temp.getSafeSymbol() + "=parameterarray["+i+"];");
2939 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2942 for(int i=0; i<fm.numTags(); i++) {
2943 TempDescriptor temp=fm.getTag(i);
2944 int offset=i+objectparams.numPrimitives();
2945 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2948 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2949 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2950 } else output.println(") {");
2953 public void generateFlatFlagActionNode(FlatMethod fm, FlatFlagActionNode ffan, PrintWriter output) {
2954 output.println("/* FlatFlagActionNode */");
2957 /* Process tag changes */
2958 Relation tagsettable=new Relation();
2959 Relation tagcleartable=new Relation();
2961 Iterator tagsit=ffan.getTempTagPairs();
2962 while (tagsit.hasNext()) {
2963 TempTagPair ttp=(TempTagPair) tagsit.next();
2964 TempDescriptor objtmp=ttp.getTemp();
2965 TagDescriptor tag=ttp.getTag();
2966 TempDescriptor tagtmp=ttp.getTagTemp();
2967 boolean tagstatus=ffan.getTagChange(ttp);
2969 tagsettable.put(objtmp, tagtmp);
2971 tagcleartable.put(objtmp, tagtmp);
2976 Hashtable flagandtable=new Hashtable();
2977 Hashtable flagortable=new Hashtable();
2979 /* Process flag changes */
2980 Iterator flagsit=ffan.getTempFlagPairs();
2981 while(flagsit.hasNext()) {
2982 TempFlagPair tfp=(TempFlagPair)flagsit.next();
2983 TempDescriptor temp=tfp.getTemp();
2984 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2985 FlagDescriptor flag=tfp.getFlag();
2987 //Newly allocate objects that don't set any flags case
2988 if (flagortable.containsKey(temp)) {
2992 flagortable.put(temp,new Integer(mask));
2994 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2995 boolean flagstatus=ffan.getFlagChange(tfp);
2998 if (flagortable.containsKey(temp)) {
2999 mask=((Integer)flagortable.get(temp)).intValue();
3002 flagortable.put(temp,new Integer(mask));
3004 int mask=0xFFFFFFFF;
3005 if (flagandtable.containsKey(temp)) {
3006 mask=((Integer)flagandtable.get(temp)).intValue();
3008 mask&=(0xFFFFFFFF^flagid);
3009 flagandtable.put(temp,new Integer(mask));
3015 HashSet flagtagset=new HashSet();
3016 flagtagset.addAll(flagortable.keySet());
3017 flagtagset.addAll(flagandtable.keySet());
3018 flagtagset.addAll(tagsettable.keySet());
3019 flagtagset.addAll(tagcleartable.keySet());
3021 Iterator ftit=flagtagset.iterator();
3022 while(ftit.hasNext()) {
3023 TempDescriptor temp=(TempDescriptor)ftit.next();
3026 Set tagtmps=tagcleartable.get(temp);
3027 if (tagtmps!=null) {
3028 Iterator tagit=tagtmps.iterator();
3029 while(tagit.hasNext()) {
3030 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
3031 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
3032 output.println("tagclear("+localsprefixaddr+", (struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
3034 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
3038 tagtmps=tagsettable.get(temp);
3039 if (tagtmps!=null) {
3040 Iterator tagit=tagtmps.iterator();
3041 while(tagit.hasNext()) {
3042 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
3043 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
3044 output.println("tagset("+localsprefixaddr+", (struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
3046 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
3051 int andmask=0xFFFFFFF;
3053 if (flagortable.containsKey(temp))
3054 ormask=((Integer)flagortable.get(temp)).intValue();
3055 if (flagandtable.containsKey(temp))
3056 andmask=((Integer)flagandtable.get(temp)).intValue();
3057 generateFlagOrAnd(ffan, fm, temp, output, ormask, andmask);
3058 generateObjectDistribute(ffan, fm, temp, output);
3062 protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, TempDescriptor temp,
3063 PrintWriter output, int ormask, int andmask) {
3064 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
3065 output.println("flagorandinit("+generateTemp(fm, temp)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
3067 output.println("flagorand("+generateTemp(fm, temp)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
3071 protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, TempDescriptor temp, PrintWriter output) {
3072 output.println("enqueueObject("+generateTemp(fm, temp)+");");
3075 void generateOptionalHeader(PrintWriter headers) {
3078 headers.println("#include \"task.h\"\n\n");
3079 headers.println("#ifndef _OPTIONAL_STRUCT_");
3080 headers.println("#define _OPTIONAL_STRUCT_");
3082 //STRUCT PREDICATEMEMBER
3083 headers.println("struct predicatemember{");
3084 headers.println("int type;");
3085 headers.println("int numdnfterms;");
3086 headers.println("int * flags;");
3087 headers.println("int numtags;");
3088 headers.println("int * tags;\n};\n\n");
3090 //STRUCT OPTIONALTASKDESCRIPTOR
3091 headers.println("struct optionaltaskdescriptor{");
3092 headers.println("struct taskdescriptor * task;");
3093 headers.println("int index;");
3094 headers.println("int numenterflags;");
3095 headers.println("int * enterflags;");
3096 headers.println("int numpredicatemembers;");
3097 headers.println("struct predicatemember ** predicatememberarray;");
3098 headers.println("};\n\n");
3100 //STRUCT TASKFAILURE
3101 headers.println("struct taskfailure {");
3102 headers.println("struct taskdescriptor * task;");
3103 headers.println("int index;");
3104 headers.println("int numoptionaltaskdescriptors;");
3105 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
3107 //STRUCT FSANALYSISWRAPPER
3108 headers.println("struct fsanalysiswrapper{");
3109 headers.println("int flags;");
3110 headers.println("int numtags;");
3111 headers.println("int * tags;");
3112 headers.println("int numtaskfailures;");
3113 headers.println("struct taskfailure ** taskfailurearray;");
3114 headers.println("int numoptionaltaskdescriptors;");
3115 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
3117 //STRUCT CLASSANALYSISWRAPPER
3118 headers.println("struct classanalysiswrapper{");
3119 headers.println("int type;");
3120 headers.println("int numotd;");
3121 headers.println("struct optionaltaskdescriptor ** otdarray;");
3122 headers.println("int numfsanalysiswrappers;");
3123 headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
3125 headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
3127 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
3128 while(taskit.hasNext()) {
3129 TaskDescriptor td=(TaskDescriptor)taskit.next();
3130 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
3135 //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
3136 int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
3137 int predicateindex = 0;
3138 //iterate through the classes concerned by the predicate
3139 Set c_vard = predicate.vardescriptors;
3140 Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
3143 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext(); ) {
3144 VarDescriptor vard = (VarDescriptor)vard_it.next();
3145 TypeDescriptor typed = vard.getType();
3147 //generate for flags
3148 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
3149 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
3151 if (fen_hashset!=null) {
3152 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext(); ) {
3153 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
3155 DNFFlag dflag=fen.getDNF();
3156 numberterms+=dflag.size();
3158 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
3160 for(int j=0; j<dflag.size(); j++) {
3162 output.println(",");
3163 Vector term=dflag.get(j);
3166 for(int k=0; k<term.size(); k++) {
3167 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
3168 FlagDescriptor fd=dfa.getFlag();
3169 boolean negated=dfa.getNegated();
3170 int flagid=1<<((Integer)flags.get(fd)).intValue();
3175 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
3180 output.println("};\n");
3183 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
3184 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
3187 for(int j=0; j<tagel.numTags(); j++) {
3189 output.println(",");
3190 TempDescriptor tmp=tagel.getTemp(j);
3191 if (!slotnumber.containsKey(tmp)) {
3192 Integer slotint=new Integer(current_slot++);
3193 slotnumber.put(tmp,slotint);
3195 int slot=slotnumber.get(tmp).intValue();
3196 output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
3198 numtags = tagel.numTags();
3200 output.println("};");
3202 //store the result into a predicatemember struct
3203 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
3204 output.println("/*type*/"+typed.getClassDesc().getId()+",");
3205 output.println("/* number of dnf terms */"+numberterms+",");
3206 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
3207 output.println("/* number of tag */"+numtags+",");
3208 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
3209 output.println("};\n");
3214 //generate an array that stores the entire predicate
3215 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
3216 for( int j = 0; j<predicateindex; j++) {
3217 if( j != predicateindex-1) output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
3218 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
3220 output.println("};\n");
3221 return predicateindex;
3225 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
3226 generateOptionalHeader(headers);
3228 output.println("#include \"optionalstruct.h\"\n\n");
3229 output.println("#include \"stdlib.h\"\n");
3231 HashSet processedcd = new HashSet();
3233 Enumeration e = safeexecution.keys();
3234 while (e.hasMoreElements()) {
3237 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
3238 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp); //will be used several times
3240 //Generate the struct of optionals
3241 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
3242 numotd = c_otd.size();
3243 if(maxotd<numotd) maxotd = numotd;
3244 if( !c_otd.isEmpty() ) {
3245 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext(); ) {
3246 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
3248 //generate the int arrays for the predicate
3249 Predicate predicate = otd.predicate;
3250 int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
3251 TreeSet<Integer> fsset=new TreeSet<Integer>();
3252 //iterate through possible FSes corresponding to
3253 //the state when entering
3255 for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext(); ) {
3256 FlagState fs = (FlagState)fses.next();
3258 for(Iterator flags = fs.getFlags(); flags.hasNext(); ) {
3259 FlagDescriptor flagd = (FlagDescriptor)flags.next();
3260 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
3263 fsset.add(new Integer(flagid));
3264 //tag information not needed because tag
3265 //changes are not tolerated.
3268 output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
3269 boolean needcomma=false;
3270 for(Iterator<Integer> it=fsset.iterator(); it.hasNext(); ) {
3273 output.println(it.next());
3276 output.println("};\n");
3279 //generate optionaltaskdescriptor that actually
3280 //includes exit fses, predicate and the task
3282 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
3283 output.println("&task_"+otd.td.getSafeSymbol()+",");
3284 output.println("/*index*/"+otd.getIndex()+",");
3285 output.println("/*number of enter flags*/"+fsset.size()+",");
3286 output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
3287 output.println("/*number of members */"+predicateindex+",");
3288 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
3289 output.println("};\n");
3293 // if there are no optionals, there is no need to build the rest of the struct
3295 output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
3296 c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
3297 if( !c_otd.isEmpty() ) {
3298 boolean needcomma=false;
3299 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext(); ) {
3300 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
3302 output.println(",");
3304 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
3307 output.println("};\n");
3309 //get all the possible flagstates reachable by an object
3310 Hashtable hashtbtemp = safeexecution.get(cdtemp);
3312 TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
3313 fsts.addAll(hashtbtemp.keySet());
3314 for(Iterator fsit=fsts.iterator(); fsit.hasNext(); ) {
3315 FlagState fs = (FlagState)fsit.next();
3318 //get the set of OptionalTaskDescriptors corresponding
3319 HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
3320 //iterate through the OptionalTaskDescriptors and
3321 //store the pointers to the optionals struct (see on
3322 //top) into an array
3324 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
3325 for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext(); ) {
3326 OptionalTaskDescriptor mm = mos.next();
3328 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
3330 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
3333 output.println("};\n");
3335 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
3338 for(Iterator flags = fs.getFlags(); flags.hasNext(); ) {
3339 FlagDescriptor flagd = (FlagDescriptor)flags.next();
3340 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
3344 //process tag information
3347 boolean first = true;
3348 Enumeration tag_enum = fs.getTags();
3349 output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
3350 while(tag_enum.hasMoreElements()) {
3352 TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
3356 output.println(", ");
3357 output.println("/*tagid*/"+state.getTagId(tagd));
3359 output.println("};");
3361 Set<TaskIndex> tiset=sa.getTaskIndex(fs);
3362 for(Iterator<TaskIndex> itti=tiset.iterator(); itti.hasNext(); ) {
3363 TaskIndex ti=itti.next();
3367 Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
3369 output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
3370 boolean needcomma=false;
3371 for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator(); otdit.hasNext(); ) {
3372 OptionalTaskDescriptor otd=otdit.next();
3376 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
3378 output.println("};");
3380 output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
3381 output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
3382 output.print(ti.getIndex()+", ");
3383 output.print(otdset.size()+", ");
3384 output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
3385 output.println("};");
3388 tiset=sa.getTaskIndex(fs);
3389 boolean needcomma=false;
3391 output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
3392 for(Iterator<TaskIndex> itti=tiset.iterator(); itti.hasNext(); ) {
3393 TaskIndex ti=itti.next();
3394 if (ti.isRuntime()) {
3401 output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
3403 output.println("};\n");
3405 //Store the result in fsanalysiswrapper
3407 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
3408 output.println("/*flag*/"+flagid+",");
3409 output.println("/* number of tags*/"+tagcounter+",");
3410 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
3411 output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
3412 output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
3413 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
3414 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
3415 output.println("};\n");
3419 //Build the array of fsanalysiswrappers
3420 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
3421 boolean needcomma=false;
3422 for(int i = 0; i<fscounter; i++) {
3423 if (needcomma) output.print(",");
3424 output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
3427 output.println("};");
3429 //Build the classanalysiswrapper referring to the previous array
3430 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
3431 output.println("/*type*/"+cdtemp.getId()+",");
3432 output.println("/*numotd*/"+numotd+",");
3433 output.println("otdarray"+cdtemp.getSafeSymbol()+",");
3434 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
3435 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
3436 processedcd.add(cdtemp);
3439 //build an array containing every classes for which code has been build
3440 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
3441 for(int i=0; i<state.numClasses(); i++) {
3442 ClassDescriptor cn=cdarray[i];
3445 if ((cn != null) && (processedcd.contains(cn)))
3446 output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
3448 output.print("NULL");
3450 output.println("};");
3452 output.println("#define MAXOTD "+maxotd);
3453 headers.println("#endif");
3456 public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
3457 Relation r=new Relation();
3458 for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator(); otdit.hasNext(); ) {
3459 OptionalTaskDescriptor otd=otdit.next();
3460 TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
3464 LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
3465 for(Iterator it=r.keySet().iterator(); it.hasNext(); ) {
3466 Set s=r.get(it.next());
3467 for(Iterator it2=s.iterator(); it2.hasNext(); ) {
3468 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();
3476 // override these methods in a subclass of BuildCode
3477 // to generate code for additional systems
3478 protected void printExtraArrayFields(PrintWriter outclassdefs) {
3480 protected void outputTransCode(PrintWriter output) {
3482 protected void buildCodeSetup() {
3484 protected void generateSizeArrayExtensions(PrintWriter outclassdefs) {
3486 protected void additionalIncludesMethodsHeader(PrintWriter outmethodheader) {
3488 protected void preCodeGenInitialization() {
3490 protected void postCodeGenCleanUp() {
3492 protected void additionalCodeGen(PrintWriter outmethodheader,
3493 PrintWriter outstructs,
3494 PrintWriter outmethod) {
3496 protected void additionalCodeAtTopOfMain(PrintWriter outmethod) {
3498 protected void additionalCodeAtBottomOfMain(PrintWriter outmethod) {
3500 protected void additionalIncludesMethodsImplementation(PrintWriter outmethod) {
3502 protected void additionalIncludesStructsHeader(PrintWriter outstructs) {
3504 protected void additionalClassObjectFields(PrintWriter outclassdefs) {
3506 protected void additionalCodeAtTopMethodsImplementation(PrintWriter outmethod) {
3508 protected void additionalCodeAtTopFlatMethodBody(PrintWriter output, FlatMethod fm) {
3510 protected void additionalCodePreNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
3512 protected void additionalCodePostNode(FlatMethod fm, FlatNode fn, PrintWriter output) {