2 import IR.Tree.Modifiers;
3 import IR.Tree.FlagExpressionNode;
4 import IR.Tree.DNFFlag;
5 import IR.Tree.DNFFlagAtom;
6 import IR.Tree.TagExpressionList;
7 import IR.Tree.OffsetNode;
14 import Analysis.TaskStateAnalysis.FlagState;
15 import Analysis.TaskStateAnalysis.FlagComparator;
16 import Analysis.TaskStateAnalysis.OptionalTaskDescriptor;
17 import Analysis.TaskStateAnalysis.Predicate;
18 import Analysis.TaskStateAnalysis.SafetyAnalysis;
19 import Analysis.TaskStateAnalysis.TaskIndex;
20 import Analysis.CallGraph.CallGraph;
21 import Analysis.Loops.GlobalFieldType;
22 import Util.CodePrinter;
24 public class BuildCode {
27 Hashtable paramstable;
32 String localsprefix="___locals___";
33 String localsprefixaddr="&"+localsprefix;
34 String localsprefixderef=localsprefix+".";
35 String fcrevert="___fcrevert___";
36 String paramsprefix="___params___";
37 String nextobjstr="___nextobject___";
38 String localcopystr="___localcopy___";
39 public static boolean GENERATEPRECISEGC=false;
40 public static String PREFIX="";
41 public static String arraytype="ArrayObject";
42 public static int flagcount = 0;
45 protected int maxtaskparams=0;
46 protected int maxcount=0;
47 ClassDescriptor[] cdarray;
48 TypeDescriptor[] arraytable;
51 Hashtable<String, ClassDescriptor> printedfieldstbl;
52 int globaldefscount=0;
54 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil) {
55 this(st, temptovar, typeutil, null);
58 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa) {
61 callgraph=new CallGraph(state);
62 this.temptovar=temptovar;
63 paramstable=new Hashtable();
64 tempstable=new Hashtable();
65 fieldorder=new Hashtable();
66 flagorder=new Hashtable();
67 this.typeutil=typeutil;
68 virtualcalls=new Virtual(state, null);
69 printedfieldstbl = new Hashtable<String, ClassDescriptor>();
72 /** The buildCode method outputs C code for all the methods. The Flat
73 * versions of the methods must already be generated and stored in
74 * the State object. */
77 public void buildCode() {
78 /* Create output streams to write to */
79 PrintWriter outclassdefs=null;
80 PrintWriter outstructs=null;
81 PrintWriter outrepairstructs=null;
82 PrintWriter outmethodheader=null;
83 PrintWriter outmethod=null;
84 PrintWriter outvirtual=null;
85 PrintWriter outtask=null;
86 PrintWriter outtaskdefs=null;
87 PrintWriter outoptionalarrays=null;
88 PrintWriter optionalheaders=null;
89 PrintWriter outglobaldefs=null;
90 PrintWriter outglobaldefsprim=null;
93 buildCodeSetup(); //EXTENSION POINT
94 outstructs=new CodePrinter(new FileOutputStream(PREFIX+"structdefs.h"), true);
95 outmethodheader=new CodePrinter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
96 outclassdefs=new CodePrinter(new FileOutputStream(PREFIX+"classdefs.h"), true);
97 outglobaldefs=new CodePrinter(new FileOutputStream(PREFIX+"globaldefs.h"), true);
98 outglobaldefsprim=new CodePrinter(new FileOutputStream(PREFIX+"globaldefsprim.h"), true);
99 outmethod=new CodePrinter(new FileOutputStream(PREFIX+"methods.c"), true);
100 outvirtual=new CodePrinter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
102 outtask=new CodePrinter(new FileOutputStream(PREFIX+"task.h"), true);
103 outtaskdefs=new CodePrinter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
104 if (state.OPTIONAL) {
105 outoptionalarrays=new CodePrinter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
106 optionalheaders=new CodePrinter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
109 if (state.structfile!=null) {
110 outrepairstructs=new CodePrinter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
112 } catch (Exception e) {
117 /* Fix field safe symbols due to shadowing */
118 FieldShadow.handleFieldShadow(state);
120 /* Build the virtual dispatch tables */
121 buildVirtualTables(outvirtual);
123 /* Tag the methods that are invoked by static blocks */
124 tagMethodInvokedByStaticBlock();
126 /* Output includes */
127 outmethodheader.println("#ifndef METHODHEADERS_H");
128 outmethodheader.println("#define METHODHEADERS_H");
129 outmethodheader.println("#include \"structdefs.h\"");
131 if (state.EVENTMONITOR) {
132 outmethodheader.println("#include \"monitor.h\"");
135 additionalIncludesMethodsHeader(outmethodheader);
137 /* Output Structures */
138 outputStructs(outstructs);
140 // Output the C class declarations
141 // These could mutually reference each other
143 outglobaldefs.println("#ifndef __GLOBALDEF_H_");
144 outglobaldefs.println("#define __GLOBALDEF_H_");
145 outglobaldefs.println("");
146 outglobaldefs.println("struct global_defs_t {");
147 outglobaldefs.println(" int size;");
148 outglobaldefs.println(" void * next;");
149 outglobaldefsprim.println("#ifndef __GLOBALDEFPRIM_H_");
150 outglobaldefsprim.println("#define __GLOBALDEFPRIM_H_");
151 outglobaldefsprim.println("");
152 outglobaldefsprim.println("struct global_defsprim_t {");
154 outclassdefs.println("#ifndef __CLASSDEF_H_");
155 outclassdefs.println("#define __CLASSDEF_H_");
156 outputClassDeclarations(outclassdefs, outglobaldefs, outglobaldefsprim);
158 // Output function prototypes and structures for parameters
159 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
160 while(it.hasNext()) {
161 ClassDescriptor cn=(ClassDescriptor)it.next();
162 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader, outglobaldefs, outglobaldefsprim);
164 outclassdefs.println("#include \"globaldefs.h\"");
165 outclassdefs.println("#include \"globaldefsprim.h\"");
166 outclassdefs.println("#endif");
167 outclassdefs.close();
169 outglobaldefs.println("};");
170 outglobaldefs.println("");
171 outglobaldefs.println("extern struct global_defs_t * global_defs_p;");
172 outglobaldefs.println("#endif");
173 outglobaldefs.flush();
174 outglobaldefs.close();
176 outglobaldefsprim.println("};");
177 outglobaldefsprim.println("");
178 outglobaldefsprim.println("extern struct global_defsprim_t * global_defsprim_p;");
179 outglobaldefsprim.println("#endif");
180 outglobaldefsprim.flush();
181 outglobaldefsprim.close();
184 /* Map flags to integers */
185 /* The runtime keeps track of flags using these integers */
186 it=state.getClassSymbolTable().getDescriptorsIterator();
187 while(it.hasNext()) {
188 ClassDescriptor cn=(ClassDescriptor)it.next();
192 generateTaskStructs(outstructs, outmethodheader);
194 /* Outputs generic task structures if this is a task
196 outputTaskTypes(outtask);
200 // an opportunity for subclasses to do extra
202 preCodeGenInitialization();
205 /* Build the actual methods */
206 outputMethods(outmethod);
209 // opportunity for subclasses to gen extra code
210 additionalCodeGen(outmethodheader,
216 /* Output code for tasks */
217 outputTaskCode(outtaskdefs, outmethod);
219 /* Record maximum number of task parameters */
220 outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
221 } else if (state.main!=null) {
222 /* Generate main method */
223 outputMainMethod(outmethod);
226 /* Generate information for task with optional parameters */
227 if (state.TASK&&state.OPTIONAL) {
228 generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
229 outoptionalarrays.close();
232 /* Output structure definitions for repair tool */
233 if (state.structfile!=null) {
234 buildRepairStructs(outrepairstructs);
235 outrepairstructs.close();
239 outmethodheader.println("#endif");
240 outmethodheader.close();
242 outstructs.println("#endif");
247 postCodeGenCleanUp();
252 /* This method goes though the call graph and tag those methods that are
253 * invoked inside static blocks
255 protected void tagMethodInvokedByStaticBlock() {
256 Iterator it_sclasses = this.state.getSClassSymbolTable().getDescriptorsIterator();
257 MethodDescriptor current_md=null;
258 HashSet tovisit=new HashSet();
259 HashSet visited=new HashSet();
261 while(it_sclasses.hasNext()) {
262 ClassDescriptor cd = (ClassDescriptor)it_sclasses.next();
263 MethodDescriptor md = (MethodDescriptor)cd.getMethodTable().get("staticblocks");
269 while(!tovisit.isEmpty()) {
270 current_md=(MethodDescriptor)tovisit.iterator().next();
271 tovisit.remove(current_md);
272 visited.add(current_md);
273 Iterator it_callee = this.callgraph.getCalleeSet(current_md).iterator();
274 while(it_callee.hasNext()) {
275 Descriptor d = (Descriptor)it_callee.next();
276 if(d instanceof MethodDescriptor) {
277 if(!visited.contains(d)) {
278 ((MethodDescriptor)d).setIsInvokedByStatic(true);
286 /* This code generates code for each static block and static field
288 protected void outputStaticBlocks(PrintWriter outmethod) {
289 // execute all the static blocks and all the static field initializations
293 /* This code generates code to create a Class object for each class for
296 protected void outputClassObjects(PrintWriter outmethod) {
297 // for each class, initialize its Class object
301 /* This code just generates the main C method for java programs.
302 * The main C method packs up the arguments into a string array
303 * and passes it to the java main method. */
305 protected void outputMainMethod(PrintWriter outmethod) {
306 outmethod.println("int main(int argc, const char *argv[]) {");
307 outmethod.println(" int i;");
308 outmethod.println(" global_defs_p=calloc(1, sizeof(struct global_defs_t));");
309 outmethod.println(" global_defsprim_p=calloc(1, sizeof(struct global_defsprim_t));");
310 if (GENERATEPRECISEGC) {
311 outmethod.println(" global_defs_p->size="+globaldefscount+";");
312 outmethod.println(" for(i=0;i<"+globaldefscount+";i++) {");
313 outmethod.println(" ((struct garbagelist *)global_defs_p)->array[i]=NULL;");
314 outmethod.println(" }");
316 outputStaticBlocks(outmethod);
317 outputClassObjects(outmethod);
320 additionalCodeAtTopOfMain(outmethod);
323 outmethod.println("initializethreads();");
326 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
327 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
329 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
331 outmethod.println(" for(i=1;i<argc;i++) {");
332 outmethod.println(" int length=strlen(argv[i]);");
334 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
335 outmethod.println(" struct ___String___ *newstring=NewString(NULL, argv[i], length);");
337 outmethod.println(" struct ___String___ *newstring=NewString(argv[i], length);");
339 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
340 outmethod.println(" }");
342 MethodDescriptor md=typeutil.getMain();
343 ClassDescriptor cd=typeutil.getMainClass();
345 outmethod.println(" {");
346 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
347 outmethod.print(" struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
348 outmethod.println("1, NULL,"+"stringarray};");
349 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
351 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
353 outmethod.println(" }");
356 outmethod.println("pthread_mutex_lock(&gclistlock);");
357 outmethod.println("threadcount--;");
358 outmethod.println("pthread_cond_signal(&gccond);");
359 outmethod.println("pthread_mutex_unlock(&gclistlock);");
362 if (state.EVENTMONITOR) {
363 outmethod.println("dumpdata();");
367 outmethod.println("pthread_exit(NULL);");
370 additionalCodeAtBottomOfMain(outmethod);
372 outmethod.println("}");
375 /* This method outputs code for each task. */
377 protected void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
378 /* Compile task based program */
379 outtaskdefs.println("#include \"task.h\"");
380 outtaskdefs.println("#include \"methodheaders.h\"");
381 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
382 while(taskit.hasNext()) {
383 TaskDescriptor td=(TaskDescriptor)taskit.next();
384 FlatMethod fm=state.getMethodFlat(td);
385 generateFlatMethod(fm, outmethod);
386 generateTaskDescriptor(outtaskdefs, fm, td);
389 //Output task descriptors
390 taskit=state.getTaskSymbolTable().getDescriptorsIterator();
391 outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
393 while(taskit.hasNext()) {
394 TaskDescriptor td=(TaskDescriptor)taskit.next();
398 outtaskdefs.println(",");
399 outtaskdefs.print("&task_"+td.getSafeSymbol());
401 outtaskdefs.println("};");
403 outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
407 /* This method outputs most of the methods.c file. This includes
408 * some standard includes and then an array with the sizes of
409 * objets and array that stores supertype and then the code for
410 * the Java methods.. */
411 protected void outputMethods(PrintWriter outmethod) {
412 outmethod.println("#include \"methodheaders.h\"");
413 outmethod.println("#include \"virtualtable.h\"");
414 outmethod.println("#include \"runtime.h\"");
416 // always include: compiler directives will leave out
417 // instrumentation when option is not set
418 outmethod.println("#include \"coreprof/coreprof.h\"");
420 if (state.FASTCHECK) {
421 outmethod.println("#include \"localobjects.h\"");
423 if(state.MULTICORE) {
425 outmethod.println("#include \"task.h\"");
427 outmethod.println("#include \"multicoreruntime.h\"");
428 outmethod.println("#include \"runtime_arch.h\"");
430 if (state.THREAD||state.DSM||state.SINGLETM) {
431 outmethod.println("#include <thread.h>");
434 outmethod.println("#include \"thread.h\"");
436 if (state.main!=null) {
437 outmethod.println("#include <string.h>");
439 if (state.CONSCHECK) {
440 outmethod.println("#include \"checkers.h\"");
444 additionalIncludesMethodsImplementation(outmethod);
446 outmethod.println("struct global_defs_t * global_defs_p;");
447 outmethod.println("struct global_defsprim_t * global_defsprim_p;");
448 //Store the sizes of classes & array elements
449 generateSizeArray(outmethod);
451 //Store table of supertypes
452 generateSuperTypeTable(outmethod);
454 //Store the layout of classes
455 generateLayoutStructs(outmethod);
458 additionalCodeAtTopMethodsImplementation(outmethod);
460 generateMethods(outmethod);
463 protected void generateMethods(PrintWriter outmethod) {
464 /* Generate code for methods */
465 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
466 while(classit.hasNext()) {
467 ClassDescriptor cn=(ClassDescriptor)classit.next();
468 Iterator methodit=cn.getMethods();
469 while(methodit.hasNext()) {
470 /* Classify parameters */
471 MethodDescriptor md=(MethodDescriptor)methodit.next();
472 FlatMethod fm=state.getMethodFlat(md);
473 if (!md.getModifiers().isNative()) {
474 generateFlatMethod(fm, outmethod);
480 protected void outputStructs(PrintWriter outstructs) {
481 outstructs.println("#ifndef STRUCTDEFS_H");
482 outstructs.println("#define STRUCTDEFS_H");
483 outstructs.println("#include \"classdefs.h\"");
484 outstructs.println("#ifndef INTPTR");
485 outstructs.println("#ifdef BIT64");
486 outstructs.println("#define INTPTR long");
487 outstructs.println("#else");
488 outstructs.println("#define INTPTR int");
489 outstructs.println("#endif");
490 outstructs.println("#endif");
493 additionalIncludesStructsHeader(outstructs);
496 /* Output #defines that the runtime uses to determine type
497 * numbers for various objects it needs */
498 outstructs.println("#define MAXCOUNT "+maxcount);
500 outstructs.println("#define STRINGARRAYTYPE "+
501 (state.getArrayNumber(
502 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
504 outstructs.println("#define OBJECTARRAYTYPE "+
505 (state.getArrayNumber(
506 (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
509 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
510 outstructs.println("#define CHARARRAYTYPE "+
511 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
513 outstructs.println("#define BYTEARRAYTYPE "+
514 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
516 outstructs.println("#define BYTEARRAYARRAYTYPE "+
517 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
519 outstructs.println("#define NUMCLASSES "+state.numClasses());
520 int totalClassSize = state.numClasses() + state.numArrays();
521 outstructs.println("#define TOTALNUMCLASSANDARRAY "+ totalClassSize);
523 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
524 outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
525 outstructs.println("#define TAGARRAYTYPE "+
526 (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
530 protected void outputClassDeclarations(PrintWriter outclassdefs, PrintWriter outglobaldefs, PrintWriter outglobaldefsprim) {
531 if (state.THREAD||state.DSM||state.SINGLETM)
532 outclassdefs.println("#include <pthread.h>");
533 outclassdefs.println("#ifndef INTPTR");
534 outclassdefs.println("#ifdef BIT64");
535 outclassdefs.println("#define INTPTR long");
536 outclassdefs.println("#else");
537 outclassdefs.println("#define INTPTR int");
538 outclassdefs.println("#endif");
539 outclassdefs.println("#endif");
541 outclassdefs.println("#include \"optionalstruct.h\"");
542 outclassdefs.println("struct "+arraytype+";");
543 /* Start by declaring all structs */
544 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
545 while(it.hasNext()) {
546 ClassDescriptor cn=(ClassDescriptor)it.next();
547 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
549 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
550 // this class has static fields/blocks, need to add a global flag to
551 // indicate if its static fields have been initialized and/or if its
552 // static blocks have been executed
553 outglobaldefsprim.println(" int "+cn.getSafeSymbol()+"static_block_exe_flag;");
556 // for each class, create a global object
557 outglobaldefs.println(" struct ___Object___ *"+cn.getSafeSymbol()+"classobj;");
560 outclassdefs.println("");
561 //Print out definition for array type
562 outclassdefs.println("struct "+arraytype+" {");
563 outclassdefs.println(" int type;");
566 additionalClassObjectFields(outclassdefs);
569 if (state.EVENTMONITOR) {
570 outclassdefs.println(" int objuid;");
573 outclassdefs.println(" pthread_t tid;");
574 outclassdefs.println(" void * lockentry;");
575 outclassdefs.println(" int lockcount;");
578 outclassdefs.println(" int mutex;");
579 outclassdefs.println(" int objlock;");
580 if(state.MULTICOREGC) {
581 outclassdefs.println(" int marked;");
585 outclassdefs.println(" int flag;");
586 if(!state.MULTICORE) {
587 outclassdefs.println(" void * flagptr;");
589 outclassdefs.println(" int version;");
590 outclassdefs.println(" int * lock;"); // lock entry for this obj
591 outclassdefs.println(" int mutex;");
592 outclassdefs.println(" int lockcount;");
593 if(state.MULTICOREGC) {
594 outclassdefs.println(" int marked;");
598 outclassdefs.println(" int numfses;");
599 outclassdefs.println(" int * fses;");
603 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs, outglobaldefs, outglobaldefsprim);
604 printedfieldstbl.clear();
605 printExtraArrayFields(outclassdefs);
606 if (state.ARRAYPAD) {
607 outclassdefs.println(" int paddingforarray;");
610 outclassdefs.println(" int ___length___;");
611 outclassdefs.println("};\n");
614 // TODO add version for normal Java later
615 outclassdefs.println("");
616 //Print out definition for Class type
617 outclassdefs.println("struct Class {");
618 outclassdefs.println(" int type;");
621 additionalClassObjectFields(outclassdefs);
624 if (state.EVENTMONITOR) {
625 outclassdefs.println(" int objuid;");
628 outclassdefs.println(" pthread_t tid;");
629 outclassdefs.println(" void * lockentry;");
630 outclassdefs.println(" int lockcount;");
633 outclassdefs.println(" int mutex;");
634 outclassdefs.println(" int objlock;");
635 if(state.MULTICOREGC) {
636 outclassdefs.println(" int marked;");
640 outclassdefs.println(" int flag;");
641 if(!state.MULTICORE) {
642 outclassdefs.println(" void * flagptr;");
644 outclassdefs.println(" int version;");
645 outclassdefs.println(" int * lock;"); // lock entry for this obj
646 outclassdefs.println(" int mutex;");
647 outclassdefs.println(" int lockcount;");
648 if(state.MULTICOREGC) {
649 outclassdefs.println(" int marked;");
653 outclassdefs.println(" int numfses;");
654 outclassdefs.println(" int * fses;");
657 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs, outglobaldefs, outglobaldefsprim);
658 printedfieldstbl.clear();
659 outclassdefs.println("};\n");
662 outclassdefs.println("");
663 outclassdefs.println("extern int classsize[];");
664 outclassdefs.println("extern int hasflags[];");
665 outclassdefs.println("extern unsigned INTPTR * pointerarray[];");
666 outclassdefs.println("extern int* supertypes[];");
667 outclassdefs.println("");
670 /** Prints out definitions for generic task structures */
672 protected void outputTaskTypes(PrintWriter outtask) {
673 outtask.println("#ifndef _TASK_H");
674 outtask.println("#define _TASK_H");
675 outtask.println("struct parameterdescriptor {");
676 outtask.println("int type;");
677 outtask.println("int numberterms;");
678 outtask.println("int *intarray;");
679 outtask.println("void * queue;");
680 outtask.println("int numbertags;");
681 outtask.println("int *tagarray;");
682 outtask.println("};");
684 outtask.println("struct taskdescriptor {");
685 outtask.println("void * taskptr;");
686 outtask.println("int numParameters;");
687 outtask.println(" int numTotal;");
688 outtask.println("struct parameterdescriptor **descriptorarray;");
689 outtask.println("char * name;");
690 outtask.println("};");
691 outtask.println("extern struct taskdescriptor * taskarray[];");
692 outtask.println("extern numtasks;");
693 outtask.println("#endif");
697 protected void buildRepairStructs(PrintWriter outrepairstructs) {
698 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
699 while(classit.hasNext()) {
700 ClassDescriptor cn=(ClassDescriptor)classit.next();
701 outrepairstructs.println("structure "+cn.getSymbol()+" {");
702 outrepairstructs.println(" int __type__;");
704 outrepairstructs.println(" int __flag__;");
705 if(!state.MULTICORE) {
706 outrepairstructs.println(" int __flagptr__;");
709 printRepairStruct(cn, outrepairstructs);
710 outrepairstructs.println("}\n");
713 for(int i=0; i<state.numArrays(); i++) {
714 TypeDescriptor tdarray=arraytable[i];
715 TypeDescriptor tdelement=tdarray.dereference();
716 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
717 outrepairstructs.println(" int __type__;");
718 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
719 outrepairstructs.println(" int length;");
720 outrepairstructs.println("}\n");
724 protected void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
725 ClassDescriptor sp=cn.getSuperDesc();
727 printRepairStruct(sp, output);
729 Vector fields=(Vector)fieldorder.get(cn);
731 for(int i=0; i<fields.size(); i++) {
732 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
733 if (fd.getType().isArray()) {
734 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
735 } else if (fd.getType().isClass())
736 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
737 else if (fd.getType().isFloat())
738 output.println(" int "+fd.getSymbol()+"; /* really float */");
740 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
744 /** This method outputs TaskDescriptor information */
745 protected void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
746 for (int i=0; i<task.numParameters(); i++) {
747 VarDescriptor param_var=task.getParameter(i);
748 TypeDescriptor param_type=task.getParamType(i);
749 FlagExpressionNode param_flag=task.getFlag(param_var);
750 TagExpressionList param_tag=task.getTag(param_var);
753 if (param_flag==null) {
754 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
755 output.println("0x0, 0x0 };");
758 DNFFlag dflag=param_flag.getDNF();
759 dnfterms=dflag.size();
761 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
762 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
763 for(int j=0; j<dflag.size(); j++) {
766 Vector term=dflag.get(j);
769 for(int k=0; k<term.size(); k++) {
770 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
771 FlagDescriptor fd=dfa.getFlag();
772 boolean negated=dfa.getNegated();
773 int flagid=1<<((Integer)flags.get(fd)).intValue();
778 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
780 output.println("};");
783 output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
785 for(int j=0; j<param_tag.numTags(); j++) {
788 /* for each tag we need */
789 /* which slot it is */
790 /* what type it is */
791 TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
792 TempDescriptor tmp=param_tag.getTemp(j);
793 int slot=fm.getTagInt(tmp);
794 output.println(slot+", "+state.getTagId(tvd.getTag()));
796 output.println("};");
798 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
799 output.println("/* type */"+param_type.getClassDesc().getId()+",");
800 output.println("/* number of DNF terms */"+dnfterms+",");
801 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
802 output.println("0,");
804 output.println("/* number of tags */"+param_tag.numTags()+",");
806 output.println("/* number of tags */ 0,");
807 output.println("parametertag_"+i+"_"+task.getSafeSymbol());
808 output.println("};");
812 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
813 for (int i=0; i<task.numParameters(); i++) {
816 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
818 output.println("};");
820 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
821 output.println("&"+task.getSafeSymbol()+",");
822 output.println("/* number of parameters */" +task.numParameters() + ",");
823 int numtotal=task.numParameters()+fm.numTags();
824 output.println("/* number total parameters */" +numtotal + ",");
825 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
826 output.println("\""+task.getSymbol()+"\"");
827 output.println("};");
831 /** The buildVirtualTables method outputs the virtual dispatch
832 * tables for methods. */
834 protected void buildVirtualTables(PrintWriter outvirtual) {
835 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
836 while(classit.hasNext()) {
837 ClassDescriptor cd=(ClassDescriptor)classit.next();
838 if (virtualcalls.getMethodCount(cd)>maxcount)
839 maxcount=virtualcalls.getMethodCount(cd);
841 MethodDescriptor[][] virtualtable=null;
842 virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
844 /* Fill in virtual table */
845 classit=state.getClassSymbolTable().getDescriptorsIterator();
846 while(classit.hasNext()) {
847 ClassDescriptor cd=(ClassDescriptor)classit.next();
848 fillinRow(cd, virtualtable, cd.getId());
851 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
852 Iterator arrayit=state.getArrayIterator();
853 while(arrayit.hasNext()) {
854 TypeDescriptor td=(TypeDescriptor)arrayit.next();
855 int id=state.getArrayNumber(td);
856 fillinRow(objectcd, virtualtable, id+state.numClasses());
859 outvirtual.print("void * virtualtable[]={");
860 boolean needcomma=false;
861 for(int i=0; i<state.numClasses()+state.numArrays(); i++) {
862 for(int j=0; j<maxcount; j++) {
864 outvirtual.print(", ");
865 if (virtualtable[i][j]!=null) {
866 MethodDescriptor md=virtualtable[i][j];
867 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
869 outvirtual.print("0");
873 outvirtual.println("");
875 outvirtual.println("};");
879 protected void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
880 /* Get inherited methods */
881 if (cd.getSuperDesc()!=null)
882 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
883 Iterator it_sifs = cd.getSuperInterfaces();
884 while(it_sifs.hasNext()) {
885 ClassDescriptor superif = (ClassDescriptor)it_sifs.next();
886 fillinRow(superif, virtualtable, rownum);
888 /* Override them with our methods */
889 for(Iterator it=cd.getMethods(); it.hasNext(); ) {
890 MethodDescriptor md=(MethodDescriptor)it.next();
891 if (md.isStatic()||md.getReturnType()==null)
893 int methodnum=virtualcalls.getMethodNumber(md);
894 virtualtable[rownum][methodnum]=md;
898 /** Generate array that contains the sizes of class objects. The
899 * object allocation functions in the runtime use this
902 protected void generateSizeArray(PrintWriter outclassdefs) {
903 outclassdefs.print("extern struct prefetchCountStats * evalPrefetch;\n");
904 generateSizeArrayExtensions(outclassdefs);
906 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
907 cdarray=new ClassDescriptor[state.numClasses()];
910 while(it.hasNext()) {
911 ClassDescriptor cd=(ClassDescriptor)it.next();
912 cdarray[cd.getId()] = cd;
915 arraytable=new TypeDescriptor[state.numArrays()];
917 Iterator arrayit=state.getArrayIterator();
918 while(arrayit.hasNext()) {
919 TypeDescriptor td=(TypeDescriptor)arrayit.next();
920 int id=state.getArrayNumber(td);
924 /* Print out types */
925 outclassdefs.println("/* ");
926 for(int i=0; i<state.numClasses(); i++) {
927 ClassDescriptor cd=cdarray[i];
929 outclassdefs.println("NULL " + i);
931 outclassdefs.println(cd +" "+i);
935 for(int i=0; i<state.numArrays(); i++) {
936 TypeDescriptor arraytd=arraytable[i];
937 outclassdefs.println(arraytd.toPrettyString() +" "+(i+state.numClasses()));
940 outclassdefs.println("*/");
943 outclassdefs.print("int classsize[]={");
945 boolean needcomma=false;
946 for(int i=0; i<state.numClasses(); i++) {
948 outclassdefs.print(", ");
950 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
952 outclassdefs.print("0");
958 for(int i=0; i<state.numArrays(); i++) {
960 outclassdefs.print(", ");
961 TypeDescriptor tdelement=arraytable[i].dereference();
962 if (tdelement.isArray()||tdelement.isClass()||tdelement.isNull())
963 outclassdefs.print("sizeof(void *)");
965 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
969 outclassdefs.println("};");
971 ClassDescriptor objectclass=typeutil.getClass(TypeUtil.ObjectClass);
973 outclassdefs.print("int typearray[]={");
974 for(int i=0; i<state.numClasses(); i++) {
975 ClassDescriptor cd=cdarray[i];
976 ClassDescriptor supercd=i>0 ? cd.getSuperDesc() : null;
978 outclassdefs.print(", ");
980 outclassdefs.print("-1");
982 outclassdefs.print(supercd.getId());
986 for(int i=0; i<state.numArrays(); i++) {
987 TypeDescriptor arraytd=arraytable[i];
988 ClassDescriptor arraycd=arraytd.getClassDesc();
991 outclassdefs.print(", ");
992 outclassdefs.print(objectclass.getId());
996 ClassDescriptor cd=arraycd.getSuperDesc();
999 TypeDescriptor supertd=new TypeDescriptor(cd);
1000 supertd.setArrayCount(arraytd.getArrayCount());
1001 type=state.getArrayNumber(supertd);
1003 type+=state.numClasses();
1006 cd=cd.getSuperDesc();
1009 outclassdefs.print(", ");
1010 outclassdefs.print(type);
1014 outclassdefs.println("};");
1019 outclassdefs.print("int typearray2[]={");
1020 for(int i=0; i<state.numArrays(); i++) {
1021 TypeDescriptor arraytd=arraytable[i];
1022 ClassDescriptor arraycd=arraytd.getClassDesc();
1023 if (arraycd==null) {
1025 outclassdefs.print(", ");
1026 outclassdefs.print("-1");
1030 ClassDescriptor cd=arraycd.getSuperDesc();
1031 int level=arraytd.getArrayCount()-1;
1033 for(; level>0; level--) {
1034 TypeDescriptor supertd=new TypeDescriptor(objectclass);
1035 supertd.setArrayCount(level);
1036 type=state.getArrayNumber(supertd);
1038 type+=state.numClasses();
1043 outclassdefs.print(", ");
1044 outclassdefs.print(type);
1048 outclassdefs.println("};");
1051 /** Constructs params and temp objects for each method or task.
1052 * These objects tell the compiler which temps need to be
1055 protected void generateTempStructs(FlatMethod fm) {
1056 MethodDescriptor md=fm.getMethod();
1057 TaskDescriptor task=fm.getTask();
1058 ParamsObject objectparams=md!=null ? new ParamsObject(md,tag++) : new ParamsObject(task, tag++);
1060 paramstable.put(md, objectparams);
1062 paramstable.put(task, objectparams);
1064 for(int i=0; i<fm.numParameters(); i++) {
1065 TempDescriptor temp=fm.getParameter(i);
1066 TypeDescriptor type=temp.getType();
1067 if (type.isPtr()&&((GENERATEPRECISEGC) || (this.state.MULTICOREGC)))
1068 objectparams.addPtr(temp);
1070 objectparams.addPrim(temp);
1073 for(int i=0; i<fm.numTags(); i++) {
1074 TempDescriptor temp=fm.getTag(i);
1075 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
1076 objectparams.addPtr(temp);
1078 objectparams.addPrim(temp);
1081 TempObject objecttemps=md!=null ? new TempObject(objectparams,md,tag++) : new TempObject(objectparams, task, tag++);
1083 tempstable.put(md, objecttemps);
1085 tempstable.put(task, objecttemps);
1087 for(Iterator nodeit=fm.getNodeSet().iterator(); nodeit.hasNext(); ) {
1088 FlatNode fn=(FlatNode)nodeit.next();
1089 TempDescriptor[] writes=fn.writesTemps();
1090 for(int i=0; i<writes.length; i++) {
1091 TempDescriptor temp=writes[i];
1092 TypeDescriptor type=temp.getType();
1093 if (type.isPtr()&&((GENERATEPRECISEGC) || (this.state.MULTICOREGC)))
1094 objecttemps.addPtr(temp);
1096 objecttemps.addPrim(temp);
1101 /** This method outputs the following information about classes
1103 * (1) For classes, what are the locations of pointers.
1104 * (2) For arrays, does the array contain pointers or primitives.
1105 * (3) For classes, does the class contain flags.
1108 protected void generateLayoutStructs(PrintWriter output) {
1109 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
1110 while(it.hasNext()) {
1111 ClassDescriptor cn=(ClassDescriptor)it.next();
1112 output.println("unsigned INTPTR "+cn.getSafeSymbol()+"_pointers[]={");
1113 Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
1115 while(allit.hasNext()) {
1116 FieldDescriptor fd=(FieldDescriptor)allit.next();
1117 TypeDescriptor type=fd.getType();
1121 output.print(count);
1122 allit=cn.getFieldTable().getAllDescriptorsIterator();
1123 while(allit.hasNext()) {
1124 FieldDescriptor fd=(FieldDescriptor)allit.next();
1125 if(fd.isStatic() || fd.isVolatile()) {
1128 TypeDescriptor type=fd.getType();
1130 output.println(",");
1131 output.print("((unsigned INTPTR)&(((struct "+cn.getSafeSymbol() +" *)0)->"+
1132 fd.getSafeSymbol()+"))");
1135 output.println("};");
1137 output.println("unsigned INTPTR * pointerarray[]={");
1138 boolean needcomma=false;
1139 for(int i=0; i<state.numClasses(); i++) {
1140 ClassDescriptor cn=cdarray[i];
1142 output.println(",");
1145 output.print(cn.getSafeSymbol()+"_pointers");
1147 output.print("NULL");
1151 for(int i=0; i<state.numArrays(); i++) {
1153 output.println(", ");
1154 TypeDescriptor tdelement=arraytable[i].dereference();
1155 if (tdelement.isArray()||tdelement.isClass())
1156 output.print("((unsigned INTPTR *)1)");
1162 output.println("};");
1164 output.println("int hasflags[]={");
1165 for(int i=0; i<state.numClasses(); i++) {
1166 ClassDescriptor cn=cdarray[i];
1168 output.println(", ");
1170 if ((cn != null) && (cn.hasFlags()))
1175 output.println("};");
1179 /** Print out table to give us supertypes */
1180 protected void generateSuperTypeTable(PrintWriter output) {
1181 for(int i=0; i<state.numClasses(); i++) {
1182 ClassDescriptor cn=cdarray[i];
1186 output.print("int supertypes" + cn.getSafeSymbol() + "[] = {");
1187 boolean ncomma = false;
1189 if((cn != null) && (cn.getSuperDesc() != null)) {
1192 Iterator it_sifs = cn != null? cn.getSuperInterfaces() : null;
1193 while(it_sifs != null && it_sifs.hasNext()) {
1199 if ((cn != null) && (cn.getSuperDesc()!=null)) {
1203 ClassDescriptor cdsuper=cn.getSuperDesc();
1204 output.print(cdsuper.getId());
1206 it_sifs = cn != null? cn.getSuperInterfaces() : null;
1207 while(it_sifs != null && it_sifs.hasNext()) {
1211 output.print(((ClassDescriptor)it_sifs.next()).getId());
1214 output.println("};");
1216 output.println("int* supertypes[]={");
1217 boolean needcomma=false;
1218 for(int i=0; i<state.numClasses(); i++) {
1219 ClassDescriptor cn=cdarray[i];
1221 output.println(",");
1224 output.print("supertypes" + cn.getSafeSymbol());
1229 output.println("};");
1232 /** Force consistent field ordering between inherited classes. */
1234 protected void printClassStruct(ClassDescriptor cn, PrintWriter classdefout, PrintWriter globaldefout, PrintWriter globaldefprimout) {
1236 ClassDescriptor sp=cn.getSuperDesc();
1238 printClassStruct(sp, classdefout, /*globaldefout*/ null, null);
1240 SymbolTable sitbl = cn.getSuperInterfaceTable();
1241 Iterator it_sifs = sitbl.getDescriptorsIterator();
1242 while(it_sifs.hasNext()) {
1243 ClassDescriptor si = (ClassDescriptor)it_sifs.next();
1244 printClassStruct(si, classdefout, /*globaldefout*/ null, null);
1247 if (!fieldorder.containsKey(cn)) {
1248 Vector fields=new Vector();
1249 fieldorder.put(cn,fields);
1251 Vector fieldvec=cn.getFieldVec();
1252 for(int i=0; i<fieldvec.size(); i++) {
1253 FieldDescriptor fd=(FieldDescriptor)fieldvec.get(i);
1254 if((sp != null) && sp.getFieldTable().contains(fd.getSymbol())) {
1257 it_sifs = sitbl.getDescriptorsIterator();
1258 boolean hasprinted = false;
1259 while(it_sifs.hasNext()) {
1260 ClassDescriptor si = (ClassDescriptor)it_sifs.next();
1261 if(si.getFieldTable().contains(fd.getSymbol())) {
1267 // this field has been defined in the super class
1274 //Vector fields=(Vector)fieldorder.get(cn);
1276 Vector fields = cn.getFieldVec();
1278 for(int i=0; i<fields.size(); i++) {
1279 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
1280 String fstring = fd.getSafeSymbol();
1281 if(printedfieldstbl.containsKey(fstring)) {
1282 printedfieldstbl.put(fstring, cn);
1285 printedfieldstbl.put(fstring, cn);
1287 if (fd.getType().isClass()
1288 && fd.getType().getClassDesc().isEnum()) {
1289 classdefout.println(" int " + fd.getSafeSymbol() + ";");
1290 } else if (fd.getType().isClass()||fd.getType().isArray()) {
1291 if (fd.isStatic()) {
1292 // TODO add version for normal Java later
1294 if(globaldefout != null) {
1295 if(fd.isVolatile()) {
1296 globaldefout.println(" volatile struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1298 globaldefout.println(" struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1302 } else if (fd.isVolatile()) {
1304 classdefout.println(" volatile struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1306 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
1308 } else if (fd.isStatic()) {
1309 // TODO add version for normal Java later
1311 if(globaldefout != null) {
1312 if(fd.isVolatile()) {
1313 globaldefprimout.println(" volatile "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1315 globaldefprimout.println(" "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1319 } else if (fd.isVolatile()) {
1321 classdefout.println(" volatile "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1323 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
1328 /* Map flags to integers consistently between inherited
1331 protected void mapFlags(ClassDescriptor cn) {
1332 ClassDescriptor sp=cn.getSuperDesc();
1336 if (!flagorder.containsKey(cn)) {
1337 Hashtable flags=new Hashtable();
1338 flagorder.put(cn,flags);
1340 Hashtable superflags=(Hashtable)flagorder.get(sp);
1341 Iterator superflagit=superflags.keySet().iterator();
1342 while(superflagit.hasNext()) {
1343 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
1344 Integer number=(Integer)superflags.get(fd);
1345 flags.put(fd, number);
1346 if ((number.intValue()+1)>max)
1347 max=number.intValue()+1;
1351 Iterator flagit=cn.getFlags();
1352 while(flagit.hasNext()) {
1353 FlagDescriptor fd=(FlagDescriptor)flagit.next();
1354 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
1355 flags.put(fd, new Integer(max++));
1361 /** This function outputs (1) structures that parameters are
1362 * passed in (when PRECISE GC is enabled) and (2) function
1363 * prototypes for the methods */
1365 protected void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout, PrintWriter globaldefout, PrintWriter globaldefprimout) {
1366 /* Output class structure */
1367 classdefout.println("struct "+cn.getSafeSymbol()+" {");
1368 classdefout.println(" int type;");
1371 additionalClassObjectFields(classdefout);
1374 if (state.EVENTMONITOR) {
1375 classdefout.println(" int objuid;");
1378 classdefout.println(" pthread_t tid;");
1379 classdefout.println(" void * lockentry;");
1380 classdefout.println(" int lockcount;");
1382 classdefout.println(" int mutex;");
1383 classdefout.println(" int objlock;");
1384 if(state.MULTICOREGC) {
1385 classdefout.println(" int marked;");
1388 classdefout.println(" int flag;");
1389 if((!state.MULTICORE) || (cn.getSymbol().equals("TagDescriptor"))) {
1390 classdefout.println(" void * flagptr;");
1391 } else if (state.MULTICORE) {
1392 classdefout.println(" int version;");
1393 classdefout.println(" int * lock;"); // lock entry for this obj
1394 classdefout.println(" int mutex;");
1395 classdefout.println(" int lockcount;");
1396 if(state.MULTICOREGC) {
1397 classdefout.println(" int marked;");
1400 if (state.OPTIONAL) {
1401 classdefout.println(" int numfses;");
1402 classdefout.println(" int * fses;");
1405 printClassStruct(cn, classdefout, globaldefout, globaldefprimout);
1406 printedfieldstbl.clear(); // = new Hashtable<String, ClassDescriptor>();
1407 classdefout.println("};\n");
1408 generateCallStructsMethods(cn, output, headersout);
1412 protected void generateCallStructsMethods(ClassDescriptor cn, PrintWriter output, PrintWriter headersout) {
1413 for(Iterator methodit=cn.getMethods(); methodit.hasNext(); ) {
1414 MethodDescriptor md=(MethodDescriptor)methodit.next();
1415 generateMethod(cn, md, headersout, output);
1419 protected void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, PrintWriter output) {
1420 /* Output parameter structure */
1421 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1422 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1423 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1424 output.println(" int size;");
1425 output.println(" void * next;");
1426 for(int i=0; i<objectparams.numPointers(); i++) {
1427 TempDescriptor temp=objectparams.getPointer(i);
1428 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1429 output.println(" int " + temp.getSafeSymbol() + ";");
1431 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1434 output.println("};\n");
1438 protected void generateMethod(ClassDescriptor cn, MethodDescriptor md, PrintWriter headersout, PrintWriter output) {
1439 FlatMethod fm=state.getMethodFlat(md);
1440 generateTempStructs(fm);
1442 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1443 TempObject objecttemps=(TempObject) tempstable.get(md);
1445 generateMethodParam(cn, md, output);
1447 /* Output temp structure */
1448 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1449 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1450 output.println(" int size;");
1451 output.println(" void * next;");
1452 for(int i=0; i<objecttemps.numPointers(); i++) {
1453 TempDescriptor temp=objecttemps.getPointer(i);
1454 if (temp.getType().isNull())
1455 output.println(" void * "+temp.getSafeSymbol()+";");
1457 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1459 output.println("};\n");
1462 /********* Output method declaration ***********/
1463 headersout.println("#define D"+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+" 1");
1464 /* First the return type */
1465 if (md.getReturnType()!=null) {
1466 if(md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
1467 headersout.println(" int ");
1468 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
1469 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1471 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1473 //catch the constructor case
1474 headersout.print("void ");
1476 /* Next the method name */
1477 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1478 boolean printcomma=false;
1479 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1480 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1484 /* Output parameter list*/
1485 for(int i=0; i<objectparams.numPrimitives(); i++) {
1486 TempDescriptor temp=objectparams.getPrimitive(i);
1488 headersout.print(", ");
1490 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1491 headersout.print("int " + temp.getSafeSymbol());
1492 } else if (temp.getType().isClass()||temp.getType().isArray())
1493 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1495 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1497 headersout.println(");\n");
1501 /** This function outputs (1) structures that parameters are
1502 * passed in (when PRECISE GC is enabled) and (2) function
1503 * prototypes for the tasks */
1505 protected void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1506 /* Cycle through tasks */
1507 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1509 while(taskit.hasNext()) {
1510 /* Classify parameters */
1511 TaskDescriptor task=(TaskDescriptor)taskit.next();
1512 FlatMethod fm=state.getMethodFlat(task);
1513 generateTempStructs(fm);
1515 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1516 TempObject objecttemps=(TempObject) tempstable.get(task);
1518 /* Output parameter structure */
1519 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1520 output.println("struct "+task.getSafeSymbol()+"_params {");
1521 output.println(" int size;");
1522 output.println(" void * next;");
1523 for(int i=0; i<objectparams.numPointers(); i++) {
1524 TempDescriptor temp=objectparams.getPointer(i);
1525 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1528 output.println("};\n");
1529 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1530 maxtaskparams=objectparams.numPointers()+fm.numTags();
1534 /* Output temp structure */
1535 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1536 output.println("struct "+task.getSafeSymbol()+"_locals {");
1537 output.println(" int size;");
1538 output.println(" void * next;");
1539 for(int i=0; i<objecttemps.numPointers(); i++) {
1540 TempDescriptor temp=objecttemps.getPointer(i);
1541 if (temp.getType().isNull())
1542 output.println(" void * "+temp.getSafeSymbol()+";");
1543 else if(temp.getType().isTag())
1544 output.println(" struct "+
1545 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1547 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1549 output.println("};\n");
1552 /* Output task declaration */
1553 headersout.print("void " + task.getSafeSymbol()+"(");
1555 boolean printcomma=false;
1556 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1557 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1559 headersout.print("void * parameterarray[]");
1560 headersout.println(");\n");
1564 protected void generateFlatMethod(FlatMethod fm, PrintWriter output) {
1565 if (State.PRINTFLAT)
1566 System.out.println(fm.printMethod());
1567 MethodDescriptor md=fm.getMethod();
1568 TaskDescriptor task=fm.getTask();
1569 ClassDescriptor cn=md!=null ? md.getClassDesc() : null;
1570 ParamsObject objectparams=(ParamsObject)paramstable.get(md!=null ? md : task);
1571 generateHeader(fm, md!=null ? md : task,output);
1572 TempObject objecttemp=(TempObject) tempstable.get(md!=null ? md : task);
1574 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1576 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1578 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
1579 output.print(objecttemp.numPointers()+",");
1580 output.print(paramsprefix);
1581 for(int j=0; j<objecttemp.numPointers(); j++)
1582 output.print(", NULL");
1583 output.println("};");
1586 for(int i=0; i<objecttemp.numPrimitives(); i++) {
1587 TempDescriptor td=objecttemp.getPrimitive(i);
1588 TypeDescriptor type=td.getType();
1589 if (type.isNull() && !type.isArray())
1590 output.println(" void * "+td.getSafeSymbol()+";");
1591 else if (type.isClass() && type.getClassDesc().isEnum()) {
1592 output.println(" int " + td.getSafeSymbol() + ";");
1593 } else if (type.isClass()||type.isArray())
1594 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1596 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1599 additionalCodeAtTopFlatMethodBody(output, fm);
1601 /* Check to see if we need to do a GC if this is a
1602 * multi-threaded program...*/
1604 if (((state.OOOJAVA||state.THREAD)&&GENERATEPRECISEGC)
1605 || this.state.MULTICOREGC) {
1606 //Don't bother if we aren't in recursive methods...The loops case will catch it
1607 if (callgraph.getAllMethods(md).contains(md)) {
1608 if (this.state.MULTICOREGC) {
1609 output.println("if(gcflag) gc("+localsprefixaddr+");");
1611 output.println("if (unlikely(needtocollect)) checkcollect("+localsprefixaddr+");");
1616 if(fm.getMethod().isStaticBlock()) {
1617 // a static block, check if it has been executed
1618 output.println(" if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag != 0) {");
1619 output.println(" return;");
1620 output.println(" }");
1624 generateCode(fm.getNext(0), fm, null, output);
1626 output.println("}\n\n");
1629 protected void generateCode(FlatNode first,
1631 Set<FlatNode> stopset,
1632 PrintWriter output) {
1634 /* Assign labels to FlatNode's if necessary.*/
1636 Hashtable<FlatNode, Integer> nodetolabel;
1638 nodetolabel=assignLabels(first, stopset);
1640 Set<FlatNode> storeset=null;
1641 HashSet<FlatNode> genset=null;
1642 HashSet<FlatNode> refset=null;
1643 Set<FlatNode> unionset=null;
1645 /* Do the actual code generation */
1646 FlatNode current_node=null;
1647 HashSet tovisit=new HashSet();
1648 HashSet visited=new HashSet();
1650 while(current_node!=null||!tovisit.isEmpty()) {
1651 if (current_node==null) {
1652 current_node=(FlatNode)tovisit.iterator().next();
1653 tovisit.remove(current_node);
1654 } else if (tovisit.contains(current_node)) {
1655 tovisit.remove(current_node);
1657 visited.add(current_node);
1658 if (nodetolabel.containsKey(current_node)) {
1659 output.println("L"+nodetolabel.get(current_node)+":");
1661 if (state.INSTRUCTIONFAILURE) {
1663 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
1665 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
1667 if (current_node.numNext()==0||stopset!=null&&stopset.contains(current_node)) {
1669 generateFlatNode(fm, current_node, output);
1671 if (state.OOOJAVA && stopset!=null) {
1672 assert first.getPrev(0) instanceof FlatSESEEnterNode;
1673 assert current_node instanceof FlatSESEExitNode;
1674 FlatSESEEnterNode fsen = (FlatSESEEnterNode) first.getPrev(0);
1675 FlatSESEExitNode fsxn = (FlatSESEExitNode) current_node;
1676 assert fsen.getFlatExit().equals(fsxn);
1677 assert fsxn.getFlatEnter().equals(fsen);
1679 if (current_node.kind()!=FKind.FlatReturnNode) {
1680 if((fm.getMethod() != null) && (fm.getMethod().isStaticBlock())) {
1681 // a static block, check if it has been executed
1682 output.println(" global_defsprim_p->" + fm.getMethod().getClassDesc().getSafeSymbol()+"static_block_exe_flag = 1;");
1685 output.println(" return;");
1688 } else if(current_node.numNext()==1) {
1690 if (state.OOOJAVA &&
1691 current_node.kind()==FKind.FlatSESEEnterNode) {
1692 FlatSESEEnterNode fsen = (FlatSESEEnterNode)current_node;
1693 generateFlatNode(fm, current_node, output);
1694 nextnode=fsen.getFlatExit().getNext(0);
1697 generateFlatNode(fm, current_node, output);
1698 nextnode=current_node.getNext(0);
1700 if (visited.contains(nextnode)) {
1701 output.println("goto L"+nodetolabel.get(nextnode)+";");
1704 current_node=nextnode;
1705 } else if (current_node.numNext()==2) {
1708 generateFlatCondBranch(fm, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
1709 if (!visited.contains(current_node.getNext(1)))
1710 tovisit.add(current_node.getNext(1));
1711 if (visited.contains(current_node.getNext(0))) {
1712 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
1715 current_node=current_node.getNext(0);
1716 } else throw new Error();
1720 protected Hashtable<FlatNode, Integer> assignLabels(FlatNode first, Set<FlatNode> lastset) {
1721 HashSet tovisit=new HashSet();
1722 HashSet visited=new HashSet();
1724 Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
1727 /*Assign labels first. A node needs a label if the previous
1728 * node has two exits or this node is a join point. */
1730 while(!tovisit.isEmpty()) {
1731 FlatNode fn=(FlatNode)tovisit.iterator().next();
1736 if(lastset!=null&&lastset.contains(fn)) {
1737 // if last is not null and matches, don't go
1738 // any further for assigning labels
1742 for(int i=0; i<fn.numNext(); i++) {
1743 FlatNode nn=fn.getNext(i);
1746 //1) Edge >1 of node
1747 nodetolabel.put(nn,new Integer(labelindex++));
1749 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1753 nodetolabel.put(nn,new Integer(labelindex++));
1760 /** Generate text string that corresponds to the TempDescriptor td. */
1761 protected String generateTemp(FlatMethod fm, TempDescriptor td) {
1762 MethodDescriptor md=fm.getMethod();
1763 TaskDescriptor task=fm.getTask();
1764 TempObject objecttemps=(TempObject) tempstable.get(md!=null ? md : task);
1766 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1767 return td.getSafeSymbol();
1770 if (objecttemps.isLocalPtr(td)) {
1771 return localsprefixderef+td.getSafeSymbol();
1774 if (objecttemps.isParamPtr(td)) {
1775 return paramsprefix+"->"+td.getSafeSymbol();
1783 protected void generateFlatNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
1784 additionalCodePreNode(fm, fn, output);
1788 case FKind.FlatAtomicEnterNode:
1789 generateFlatAtomicEnterNode(fm, (FlatAtomicEnterNode) fn, output);
1792 case FKind.FlatAtomicExitNode:
1793 generateFlatAtomicExitNode(fm, (FlatAtomicExitNode) fn, output);
1796 case FKind.FlatInstanceOfNode:
1797 generateFlatInstanceOfNode(fm, (FlatInstanceOfNode)fn, output);
1800 case FKind.FlatSESEEnterNode:
1801 generateFlatSESEEnterNode(fm, (FlatSESEEnterNode)fn, output);
1804 case FKind.FlatSESEExitNode:
1805 generateFlatSESEExitNode(fm, (FlatSESEExitNode)fn, output);
1808 case FKind.FlatWriteDynamicVarNode:
1809 generateFlatWriteDynamicVarNode(fm, (FlatWriteDynamicVarNode)fn, output);
1812 case FKind.FlatGlobalConvNode:
1813 generateFlatGlobalConvNode(fm, (FlatGlobalConvNode) fn, output);
1816 case FKind.FlatTagDeclaration:
1817 generateFlatTagDeclaration(fm, (FlatTagDeclaration) fn,output);
1820 case FKind.FlatCall:
1821 generateFlatCall(fm, (FlatCall) fn,output);
1824 case FKind.FlatFieldNode:
1825 generateFlatFieldNode(fm, (FlatFieldNode) fn,output);
1828 case FKind.FlatElementNode:
1829 generateFlatElementNode(fm, (FlatElementNode) fn,output);
1832 case FKind.FlatSetElementNode:
1833 generateFlatSetElementNode(fm, (FlatSetElementNode) fn,output);
1836 case FKind.FlatSetFieldNode:
1837 generateFlatSetFieldNode(fm, (FlatSetFieldNode) fn,output);
1841 generateFlatNew(fm, (FlatNew) fn,output);
1844 case FKind.FlatOpNode:
1845 generateFlatOpNode(fm, (FlatOpNode) fn,output);
1848 case FKind.FlatCastNode:
1849 generateFlatCastNode(fm, (FlatCastNode) fn,output);
1852 case FKind.FlatLiteralNode:
1853 generateFlatLiteralNode(fm, (FlatLiteralNode) fn,output);
1856 case FKind.FlatReturnNode:
1857 generateFlatReturnNode(fm, (FlatReturnNode) fn,output);
1861 output.println("/* nop */");
1864 case FKind.FlatGenReachNode:
1865 // this node is just for generating a reach graph
1866 // in disjointness analysis at a particular program point
1869 case FKind.FlatExit:
1870 output.println("/* exit */");
1873 case FKind.FlatBackEdge:
1874 generateFlatBackEdge(fm, (FlatBackEdge)fn, output);
1877 case FKind.FlatCheckNode:
1878 generateFlatCheckNode(fm, (FlatCheckNode) fn, output);
1881 case FKind.FlatFlagActionNode:
1882 generateFlatFlagActionNode(fm, (FlatFlagActionNode) fn, output);
1885 case FKind.FlatPrefetchNode:
1886 generateFlatPrefetchNode(fm, (FlatPrefetchNode) fn, output);
1889 case FKind.FlatOffsetNode:
1890 generateFlatOffsetNode(fm, (FlatOffsetNode)fn, output);
1897 additionalCodePostNode(fm, fn, output);
1900 public void generateFlatBackEdge(FlatMethod fm, FlatBackEdge fn, PrintWriter output) {
1901 if (((state.OOOJAVA||state.THREAD)&&GENERATEPRECISEGC)
1902 || (this.state.MULTICOREGC)) {
1903 if(this.state.MULTICOREGC) {
1904 output.println("if (gcflag) gc("+localsprefixaddr+");");
1906 output.println("if (unlikely(needtocollect)) checkcollect("+localsprefixaddr+");");
1909 output.println("/* nop */");
1912 public void generateFlatOffsetNode(FlatMethod fm, FlatOffsetNode fofn, PrintWriter output) {
1913 output.println("/* FlatOffsetNode */");
1914 FieldDescriptor fd=fofn.getField();
1915 if(!fd.isStatic() && !fd.isVolatile()) {
1916 output.println(generateTemp(fm, fofn.getDst())+ " = (short)(int) (&((struct "+fofn.getClassType().getSafeSymbol() +" *)0)->"+
1917 fd.getSafeSymbol()+");");
1919 output.println("/* offset */");
1922 public void generateFlatPrefetchNode(FlatMethod fm, FlatPrefetchNode fpn, PrintWriter output) {
1925 public void generateFlatGlobalConvNode(FlatMethod fm, FlatGlobalConvNode fgcn, PrintWriter output) {
1928 public void generateFlatInstanceOfNode(FlatMethod fm, FlatInstanceOfNode fion, PrintWriter output) {
1930 if (fion.getType().isArray()) {
1931 type=state.getArrayNumber(fion.getType())+state.numClasses();
1933 type=fion.getType().getClassDesc().getId();
1936 if (fion.getType().getSymbol().equals(TypeUtil.ObjectClass))
1937 output.println(generateTemp(fm, fion.getDst())+"=1;");
1939 output.println(generateTemp(fm, fion.getDst())+"=instanceof("+generateTemp(fm,fion.getSrc())+","+type+");");
1942 public void generateFlatAtomicEnterNode(FlatMethod fm, FlatAtomicEnterNode faen, PrintWriter output) {
1945 public void generateFlatAtomicExitNode(FlatMethod fm, FlatAtomicExitNode faen, PrintWriter output) {
1948 public void generateFlatSESEEnterNode(FlatMethod fm,
1949 FlatSESEEnterNode fsen,
1950 PrintWriter output) {
1951 // if OOOJAVA flag is off, okay that SESE nodes are in IR graph,
1952 // just skip over them and code generates exactly the same
1955 public void generateFlatSESEExitNode(FlatMethod fm,
1956 FlatSESEExitNode fsexn,
1957 PrintWriter output) {
1958 // if OOOJAVA flag is off, okay that SESE nodes are in IR graph,
1959 // just skip over them and code generates exactly the same
1962 public void generateFlatWriteDynamicVarNode(FlatMethod fm,
1963 FlatWriteDynamicVarNode fwdvn,
1964 PrintWriter output) {
1968 protected void generateFlatCheckNode(FlatMethod fm, FlatCheckNode fcn, PrintWriter output) {
1969 if (state.CONSCHECK) {
1970 String specname=fcn.getSpec();
1971 String varname="repairstate___";
1972 output.println("{");
1973 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1975 TempDescriptor[] temps=fcn.getTemps();
1976 String[] vars=fcn.getVars();
1977 for(int i=0; i<temps.length; i++) {
1978 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i])+";");
1981 output.println("if (doanalysis"+specname+"("+varname+")) {");
1982 output.println("free"+specname+"_state("+varname+");");
1983 output.println("} else {");
1984 output.println("/* Bad invariant */");
1985 output.println("free"+specname+"_state("+varname+");");
1986 output.println("abort_task();");
1987 output.println("}");
1988 output.println("}");
1992 protected void generateFlatCall(FlatMethod fm, FlatCall fc, PrintWriter output) {
1993 MethodDescriptor md=fc.getMethod();
1994 ParamsObject objectparams=(ParamsObject)paramstable.get(md);
1995 ClassDescriptor cn=md.getClassDesc();
1997 // if the called method is a static block or a static method or a constructor
1998 // need to check if it can be invoked inside some static block
1999 if((md.isStatic() || md.isStaticBlock() || md.isConstructor()) &&
2000 ((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic()))) {
2001 if(!md.isInvokedByStatic()) {
2002 System.err.println("Error: a method that is invoked inside a static block is not tagged!");
2004 // is a static block or is invoked in some static block
2005 ClassDescriptor cd = fm.getMethod().getClassDesc();
2007 // the same class, do nothing
2008 // TODO may want to invoke static field initialization here
2010 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2011 // need to check if the class' static fields have been initialized and/or
2012 // its static blocks have been executed
2013 output.println("#ifdef MGC_STATIC_INIT_CHECK");
2014 output.println("if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2015 if(cn.getNumStaticBlocks() != 0) {
2016 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2017 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2019 output.println(" global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2021 output.println("}");
2022 output.println("#endif // MGC_STATIC_INIT_CHECK");
2026 if((md.getSymbol().equals("MonitorEnter") || md.getSymbol().equals("MonitorExit")) && fc.getThis().getSymbol().equals("classobj")) {
2027 // call MonitorEnter/MonitorExit on a class obj
2028 output.println(" " + cn.getSafeSymbol()+md.getSafeSymbol()+"_"
2029 +md.getSafeMethodDescriptor() + "((struct ___Object___*)(global_defs_p->"
2030 + fc.getThis().getType().getClassDesc().getSafeSymbol() +"classobj));");
2034 output.println("{");
2035 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2036 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
2037 output.print(objectparams.numPointers());
2038 output.print(", "+localsprefixaddr);
2039 if (md.getThis()!=null) {
2041 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis()));
2043 if (fc.getThis()!=null&&md.getThis()==null) {
2044 System.out.println("WARNING!!!!!!!!!!!!");
2045 System.out.println("Source code calls static method "+md+" on an object in "+fm.getMethod()+"!");
2049 for(int i=0; i<fc.numArgs(); i++) {
2050 Descriptor var=md.getParameter(i);
2051 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
2052 if (objectparams.isParamPtr(paramtemp)) {
2053 TempDescriptor targ=fc.getArg(i);
2055 TypeDescriptor td=md.getParamType(i);
2057 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ));
2059 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ));
2062 output.println("};");
2067 if (fc.getReturnTemp()!=null)
2068 output.print(generateTemp(fm,fc.getReturnTemp())+"=");
2070 /* Do we need to do virtual dispatch? */
2071 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
2073 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
2077 if (md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
2078 output.print("int ");
2079 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
2080 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2082 output.print(md.getReturnType().getSafeSymbol()+" ");
2083 output.print("(*)(");
2085 boolean printcomma=false;
2086 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2087 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
2091 for(int i=0; i<objectparams.numPrimitives(); i++) {
2092 TempDescriptor temp=objectparams.getPrimitive(i);
2096 if (temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
2097 output.print("int ");
2098 } else if (temp.getType().isClass()||temp.getType().isArray())
2099 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
2101 output.print(temp.getType().getSafeSymbol());
2105 output.print("))virtualtable["+generateTemp(fm,fc.getThis())+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
2109 boolean needcomma=false;
2110 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2111 output.print("&__parameterlist__");
2115 if (!GENERATEPRECISEGC && !this.state.MULTICOREGC) {
2116 if (fc.getThis()!=null) {
2117 TypeDescriptor ptd=null;
2118 if(md.getThis() != null) {
2119 ptd = md.getThis().getType();
2121 ptd = fc.getThis().getType();
2125 if(ptd.isClass() && ptd.getClassDesc().isEnum()) {
2127 } else if (ptd.isClass()&&!ptd.isArray())
2128 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
2129 output.print(generateTemp(fm,fc.getThis()));
2134 for(int i=0; i<fc.numArgs(); i++) {
2135 Descriptor var=md.getParameter(i);
2136 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
2137 if (objectparams.isParamPrim(paramtemp)) {
2138 TempDescriptor targ=fc.getArg(i);
2142 TypeDescriptor ptd=md.getParamType(i);
2143 if (ptd.isClass() && ptd.getClassDesc().isEnum()) {
2145 } else if (ptd.isClass()&&!ptd.isArray())
2146 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
2147 output.print(generateTemp(fm, targ));
2151 output.println(");");
2152 output.println(" }");
2155 protected boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
2156 Set subclasses=typeutil.getSubClasses(thiscd);
2157 if (subclasses==null)
2159 for(Iterator classit=subclasses.iterator(); classit.hasNext(); ) {
2160 ClassDescriptor cd=(ClassDescriptor)classit.next();
2161 Set possiblematches=cd.getMethodTable().getSetFromSameScope(md.getSymbol());
2162 for(Iterator matchit=possiblematches.iterator(); matchit.hasNext(); ) {
2163 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
2164 if (md.matches(matchmd))
2171 protected void generateFlatFieldNode(FlatMethod fm, FlatFieldNode ffn, PrintWriter output) {
2172 if(ffn.getField().isStatic() || ffn.getField().isVolatile()) {
2174 if((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic())) {
2175 // is a static block or is invoked in some static block
2176 ClassDescriptor cd = fm.getMethod().getClassDesc();
2177 ClassDescriptor cn = ffn.getSrc().getType().getClassDesc();
2179 // the same class, do nothing
2180 // TODO may want to invoke static field initialization here
2182 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2183 // need to check if the class' static fields have been initialized and/or
2184 // its static blocks have been executed
2185 output.println("#ifdef MGC_STATIC_INIT_CHECK");
2186 output.println("if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2187 if(cn.getNumStaticBlocks() != 0) {
2188 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2189 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2191 output.println(" global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2193 output.println("}");
2194 output.println("#endif // MGC_STATIC_INIT_CHECK");
2198 // redirect to the global_defs_p structure
2199 if((ffn.getField().isStatic()) || (ffn.getField().isVolatile()) || (ffn.getSrc().getType().isClassNameRef())) {
2200 // reference to the static field with Class name
2201 if (ffn.getField().getType().isPtr())
2202 output.println(generateTemp(fm, ffn.getDst())+"=global_defs_p->"+ffn.getField().getSafeSymbol()+";");
2204 output.println(generateTemp(fm, ffn.getDst())+"=global_defsprim_p->"+ffn.getField().getSafeSymbol()+";");
2206 output.println(generateTemp(fm, ffn.getDst())+"=*"+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
2208 } else if (ffn.getField().isEnum()) {
2209 // an Enum value, directly replace the field access as int
2210 output.println(generateTemp(fm, ffn.getDst()) + "=" + ffn.getField().enumValue() + ";");
2212 output.println(generateTemp(fm, ffn.getDst())+"="+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
2217 protected void generateFlatSetFieldNode(FlatMethod fm, FlatSetFieldNode fsfn, PrintWriter output) {
2218 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
2219 throw new Error("Can't set array length");
2220 if (state.FASTCHECK) {
2221 String dst=generateTemp(fm, fsfn.getDst());
2222 output.println("if(!"+dst+"->"+localcopystr+") {");
2223 /* Link object into list */
2224 if (GENERATEPRECISEGC || this.state.MULTICOREGC)
2225 output.println("COPY_OBJ((struct garbagelist *)"+localsprefixaddr+",(struct ___Object___ *)"+dst+");");
2227 output.println("COPY_OBJ("+dst+");");
2228 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2229 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2230 output.println("}");
2233 if(fsfn.getField().isStatic()) {
2235 if((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic())) {
2236 // is a static block or is invoked in some static block
2237 ClassDescriptor cd = fm.getMethod().getClassDesc();
2238 ClassDescriptor cn = fsfn.getDst().getType().getClassDesc();
2240 // the same class, do nothing
2241 // TODO may want to invoke static field initialization here
2243 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2244 // need to check if the class' static fields have been initialized and/or
2245 // its static blocks have been executed
2246 output.println("#ifdef MGC_STATIC_INIT_CHECK");
2247 output.println("if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2248 if(cn.getNumStaticFields() != 0) {
2249 // TODO add static field initialization here
2251 if(cn.getNumStaticBlocks() != 0) {
2252 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2253 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2255 output.println(" global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2257 output.println("}");
2258 output.println("#endif // MGC_STATIC_INIT_CHECK");
2262 // redirect to the global_defs_p structure
2263 if((fsfn.getDst().getType().isClassNameRef()) || (fsfn.getField().isStatic()) || (fsfn.getField().isVolatile())) {
2264 // reference to the static field with Class name
2265 if (fsfn.getField().getType().isPtr())
2266 output.println("global_defs_p->" +
2267 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2269 output.println("global_defsprim_p->" +
2270 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2272 output.println("*"+generateTemp(fm, fsfn.getDst())+"->"+
2273 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2276 output.println(generateTemp(fm, fsfn.getDst())+"->"+
2277 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2282 protected void generateFlatElementNode(FlatMethod fm, FlatElementNode fen, PrintWriter output) {
2283 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
2286 if (elementtype.isClass() && elementtype.getClassDesc().isEnum()) {
2288 } else if (elementtype.isArray()||elementtype.isClass())
2291 type=elementtype.getSafeSymbol()+" ";
2293 if (this.state.ARRAYBOUNDARYCHECK && fen.needsBoundsCheck()) {
2294 output.println("if (unlikely(((unsigned int)"+generateTemp(fm, fen.getIndex())+") >= "+generateTemp(fm,fen.getSrc()) + "->___length___))");
2295 output.println("failedboundschk();");
2297 output.println(generateTemp(fm, fen.getDst())+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc())+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex())+"];");
2300 protected void generateFlatSetElementNode(FlatMethod fm, FlatSetElementNode fsen, PrintWriter output) {
2301 //TODO: need dynamic check to make sure this assignment is actually legal
2302 //Because Object[] could actually be something more specific...ie. Integer[]
2304 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2307 if (elementtype.isClass() && elementtype.getClassDesc().isEnum()) {
2309 } else if (elementtype.isArray()||elementtype.isClass() || (elementtype.isNull()))
2312 type=elementtype.getSafeSymbol()+" ";
2314 if (this.state.ARRAYBOUNDARYCHECK && fsen.needsBoundsCheck()) {
2315 output.println("if (unlikely(((unsigned int)"+generateTemp(fm, fsen.getIndex())+") >= "+generateTemp(fm,fsen.getDst()) + "->___length___))");
2316 output.println("failedboundschk();");
2318 if (state.FASTCHECK) {
2319 String dst=generateTemp(fm, fsen.getDst());
2320 output.println("if(!"+dst+"->"+localcopystr+") {");
2321 /* Link object into list */
2322 if (GENERATEPRECISEGC || this.state.MULTICOREGC)
2323 output.println("COPY_OBJ((struct garbagelist *)"+localsprefixaddr+",(struct ___Object___ *)"+dst+");");
2325 output.println("COPY_OBJ("+dst+");");
2326 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2327 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2328 output.println("}");
2330 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst())+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex())+"]="+generateTemp(fm,fsen.getSrc())+";");
2334 protected void generateFlatNew(FlatMethod fm, FlatNew fn, PrintWriter output) {
2335 if (fn.getType().isArray()) {
2336 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2337 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2338 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+localsprefixaddr+", "+arrayid+", "+generateTemp(fm, fn.getSize())+");");
2340 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize())+");");
2343 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2344 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+localsprefixaddr+", "+fn.getType().getClassDesc().getId()+");");
2346 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2349 if (state.FASTCHECK) {
2350 String dst=generateTemp(fm,fn.getDst());
2351 output.println(dst+"->___localcopy___=(struct ___Object___*)1;");
2352 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2353 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2357 protected void generateFlatTagDeclaration(FlatMethod fm, FlatTagDeclaration fn, PrintWriter output) {
2358 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2359 output.println(generateTemp(fm,fn.getDst())+"=allocate_tag("+localsprefixaddr+", "+state.getTagId(fn.getType())+");");
2361 output.println(generateTemp(fm,fn.getDst())+"=allocate_tag("+state.getTagId(fn.getType())+");");
2365 protected void generateFlatOpNode(FlatMethod fm, FlatOpNode fon, PrintWriter output) {
2366 if (fon.getRight()!=null) {
2367 if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2368 if (fon.getLeft().getType().isLong())
2369 output.println(generateTemp(fm, fon.getDest())+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft())+")>>"+generateTemp(fm,fon.getRight())+";");
2371 output.println(generateTemp(fm, fon.getDest())+" = ((unsigned int)"+generateTemp(fm, fon.getLeft())+")>>"+generateTemp(fm,fon.getRight())+";");
2374 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+fon.getOp().toString()+generateTemp(fm,fon.getRight())+";");
2375 } else if (fon.getOp().getOp()==Operation.ASSIGN)
2376 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
2377 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2378 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
2379 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2380 output.println(generateTemp(fm, fon.getDest())+" = -"+generateTemp(fm, fon.getLeft())+";");
2381 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2382 output.println(generateTemp(fm, fon.getDest())+" = !"+generateTemp(fm, fon.getLeft())+";");
2383 else if (fon.getOp().getOp()==Operation.COMP)
2384 output.println(generateTemp(fm, fon.getDest())+" = ~"+generateTemp(fm, fon.getLeft())+";");
2385 else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2386 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+"->fses==NULL;");
2388 output.println(generateTemp(fm, fon.getDest())+fon.getOp().toString()+generateTemp(fm, fon.getLeft())+";");
2391 protected void generateFlatCastNode(FlatMethod fm, FlatCastNode fcn, PrintWriter output) {
2392 /* TODO: Do type check here */
2393 if (fcn.getType().isArray()) {
2394 output.println(generateTemp(fm,fcn.getDst())+"=(struct ArrayObject *)"+generateTemp(fm,fcn.getSrc())+";");
2395 } else if (fcn.getType().isClass() && fcn.getType().getClassDesc().isEnum()) {
2396 output.println(generateTemp(fm,fcn.getDst())+"=(int)"+generateTemp(fm,fcn.getSrc())+";");
2397 } else if (fcn.getType().isClass())
2398 output.println(generateTemp(fm,fcn.getDst())+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc())+";");
2400 output.println(generateTemp(fm,fcn.getDst())+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc())+";");
2403 protected void generateFlatLiteralNode(FlatMethod fm, FlatLiteralNode fln, PrintWriter output) {
2404 if (fln.getValue()==null)
2405 output.println(generateTemp(fm, fln.getDst())+"=0;");
2406 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2407 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2408 output.println(generateTemp(fm, fln.getDst())+"=NewString("+localsprefixaddr+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2410 output.println(generateTemp(fm, fln.getDst())+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2412 } else if (fln.getType().isBoolean()) {
2413 if (((Boolean)fln.getValue()).booleanValue())
2414 output.println(generateTemp(fm, fln.getDst())+"=1;");
2416 output.println(generateTemp(fm, fln.getDst())+"=0;");
2417 } else if (fln.getType().isChar()) {
2418 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2419 output.println(generateTemp(fm, fln.getDst())+"='"+st+"';");
2420 } else if (fln.getType().isLong()) {
2421 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+"LL;");
2423 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+";");
2426 protected void generateFlatReturnNode(FlatMethod fm, FlatReturnNode frn, PrintWriter output) {
2427 if((fm.getMethod() != null) && (fm.getMethod().isStaticBlock())) {
2428 // a static block, check if it has been executed
2429 output.println(" global_defsprim_p->" + fm.getMethod().getClassDesc().getSafeSymbol()+"static_block_exe_flag = 1;");
2433 if (frn.getReturnTemp()!=null) {
2434 if (frn.getReturnTemp().getType().isPtr())
2435 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp())+";");
2437 output.println("return "+generateTemp(fm, frn.getReturnTemp())+";");
2439 output.println("return;");
2443 protected void generateFlatCondBranch(FlatMethod fm, FlatCondBranch fcb, String label, PrintWriter output) {
2444 output.println("if (!"+generateTemp(fm, fcb.getTest())+") goto "+label+";");
2447 /** This method generates header information for the method or
2448 * task referenced by the Descriptor des. */
2449 protected void generateHeader(FlatMethod fm, Descriptor des, PrintWriter output) {
2450 generateHeader(fm, des, output, false);
2453 protected void generateHeader(FlatMethod fm, Descriptor des, PrintWriter output, boolean addSESErecord) {
2455 ParamsObject objectparams=(ParamsObject)paramstable.get(des);
2456 MethodDescriptor md=null;
2457 TaskDescriptor task=null;
2458 if (des instanceof MethodDescriptor)
2459 md=(MethodDescriptor) des;
2461 task=(TaskDescriptor) des;
2463 ClassDescriptor cn=md!=null ? md.getClassDesc() : null;
2465 if (md!=null&&md.getReturnType()!=null) {
2466 if (md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
2467 output.print("int ");
2468 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
2469 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2471 output.print(md.getReturnType().getSafeSymbol()+" ");
2473 //catch the constructor case
2474 output.print("void ");
2476 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2478 output.print(task.getSafeSymbol()+"(");
2480 boolean printcomma=false;
2481 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2483 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2485 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2491 for(int i=0; i<objectparams.numPrimitives(); i++) {
2492 TempDescriptor temp=objectparams.getPrimitive(i);
2496 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
2497 output.print("int " + temp.getSafeSymbol());
2498 } else if (temp.getType().isClass()||temp.getType().isArray())
2499 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2501 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2503 output.println(") {");
2504 } else if (!GENERATEPRECISEGC && !this.state.MULTICOREGC) {
2505 /* Imprecise Task */
2506 output.println("void * parameterarray[]) {");
2507 /* Unpack variables */
2508 for(int i=0; i<objectparams.numPrimitives(); i++) {
2509 TempDescriptor temp=objectparams.getPrimitive(i);
2510 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
2511 output.print("int " + temp.getSafeSymbol() + "=parameterarray["+i+"];");
2513 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2516 for(int i=0; i<fm.numTags(); i++) {
2517 TempDescriptor temp=fm.getTag(i);
2518 int offset=i+objectparams.numPrimitives();
2519 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2522 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2523 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2524 } else output.println(") {");
2527 public void generateFlatFlagActionNode(FlatMethod fm, FlatFlagActionNode ffan, PrintWriter output) {
2528 output.println("/* FlatFlagActionNode */");
2531 /* Process tag changes */
2532 Relation tagsettable=new Relation();
2533 Relation tagcleartable=new Relation();
2535 Iterator tagsit=ffan.getTempTagPairs();
2536 while (tagsit.hasNext()) {
2537 TempTagPair ttp=(TempTagPair) tagsit.next();
2538 TempDescriptor objtmp=ttp.getTemp();
2539 TagDescriptor tag=ttp.getTag();
2540 TempDescriptor tagtmp=ttp.getTagTemp();
2541 boolean tagstatus=ffan.getTagChange(ttp);
2543 tagsettable.put(objtmp, tagtmp);
2545 tagcleartable.put(objtmp, tagtmp);
2550 Hashtable flagandtable=new Hashtable();
2551 Hashtable flagortable=new Hashtable();
2553 /* Process flag changes */
2554 Iterator flagsit=ffan.getTempFlagPairs();
2555 while(flagsit.hasNext()) {
2556 TempFlagPair tfp=(TempFlagPair)flagsit.next();
2557 TempDescriptor temp=tfp.getTemp();
2558 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2559 FlagDescriptor flag=tfp.getFlag();
2561 //Newly allocate objects that don't set any flags case
2562 if (flagortable.containsKey(temp)) {
2566 flagortable.put(temp,new Integer(mask));
2568 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2569 boolean flagstatus=ffan.getFlagChange(tfp);
2572 if (flagortable.containsKey(temp)) {
2573 mask=((Integer)flagortable.get(temp)).intValue();
2576 flagortable.put(temp,new Integer(mask));
2578 int mask=0xFFFFFFFF;
2579 if (flagandtable.containsKey(temp)) {
2580 mask=((Integer)flagandtable.get(temp)).intValue();
2582 mask&=(0xFFFFFFFF^flagid);
2583 flagandtable.put(temp,new Integer(mask));
2589 HashSet flagtagset=new HashSet();
2590 flagtagset.addAll(flagortable.keySet());
2591 flagtagset.addAll(flagandtable.keySet());
2592 flagtagset.addAll(tagsettable.keySet());
2593 flagtagset.addAll(tagcleartable.keySet());
2595 Iterator ftit=flagtagset.iterator();
2596 while(ftit.hasNext()) {
2597 TempDescriptor temp=(TempDescriptor)ftit.next();
2600 Set tagtmps=tagcleartable.get(temp);
2601 if (tagtmps!=null) {
2602 Iterator tagit=tagtmps.iterator();
2603 while(tagit.hasNext()) {
2604 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2605 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
2606 output.println("tagclear("+localsprefixaddr+", (struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
2608 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
2612 tagtmps=tagsettable.get(temp);
2613 if (tagtmps!=null) {
2614 Iterator tagit=tagtmps.iterator();
2615 while(tagit.hasNext()) {
2616 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2617 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
2618 output.println("tagset("+localsprefixaddr+", (struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
2620 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
2625 int andmask=0xFFFFFFF;
2627 if (flagortable.containsKey(temp))
2628 ormask=((Integer)flagortable.get(temp)).intValue();
2629 if (flagandtable.containsKey(temp))
2630 andmask=((Integer)flagandtable.get(temp)).intValue();
2631 generateFlagOrAnd(ffan, fm, temp, output, ormask, andmask);
2632 generateObjectDistribute(ffan, fm, temp, output);
2636 protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, TempDescriptor temp,
2637 PrintWriter output, int ormask, int andmask) {
2638 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2639 output.println("flagorandinit("+generateTemp(fm, temp)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2641 output.println("flagorand("+generateTemp(fm, temp)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2645 protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, TempDescriptor temp, PrintWriter output) {
2646 output.println("enqueueObject("+generateTemp(fm, temp)+");");
2649 void generateOptionalHeader(PrintWriter headers) {
2652 headers.println("#include \"task.h\"\n\n");
2653 headers.println("#ifndef _OPTIONAL_STRUCT_");
2654 headers.println("#define _OPTIONAL_STRUCT_");
2656 //STRUCT PREDICATEMEMBER
2657 headers.println("struct predicatemember{");
2658 headers.println("int type;");
2659 headers.println("int numdnfterms;");
2660 headers.println("int * flags;");
2661 headers.println("int numtags;");
2662 headers.println("int * tags;\n};\n\n");
2664 //STRUCT OPTIONALTASKDESCRIPTOR
2665 headers.println("struct optionaltaskdescriptor{");
2666 headers.println("struct taskdescriptor * task;");
2667 headers.println("int index;");
2668 headers.println("int numenterflags;");
2669 headers.println("int * enterflags;");
2670 headers.println("int numpredicatemembers;");
2671 headers.println("struct predicatemember ** predicatememberarray;");
2672 headers.println("};\n\n");
2674 //STRUCT TASKFAILURE
2675 headers.println("struct taskfailure {");
2676 headers.println("struct taskdescriptor * task;");
2677 headers.println("int index;");
2678 headers.println("int numoptionaltaskdescriptors;");
2679 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2681 //STRUCT FSANALYSISWRAPPER
2682 headers.println("struct fsanalysiswrapper{");
2683 headers.println("int flags;");
2684 headers.println("int numtags;");
2685 headers.println("int * tags;");
2686 headers.println("int numtaskfailures;");
2687 headers.println("struct taskfailure ** taskfailurearray;");
2688 headers.println("int numoptionaltaskdescriptors;");
2689 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2691 //STRUCT CLASSANALYSISWRAPPER
2692 headers.println("struct classanalysiswrapper{");
2693 headers.println("int type;");
2694 headers.println("int numotd;");
2695 headers.println("struct optionaltaskdescriptor ** otdarray;");
2696 headers.println("int numfsanalysiswrappers;");
2697 headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
2699 headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
2701 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
2702 while(taskit.hasNext()) {
2703 TaskDescriptor td=(TaskDescriptor)taskit.next();
2704 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
2709 //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
2710 int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
2711 int predicateindex = 0;
2712 //iterate through the classes concerned by the predicate
2713 Set c_vard = predicate.vardescriptors;
2714 Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
2717 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext(); ) {
2718 VarDescriptor vard = (VarDescriptor)vard_it.next();
2719 TypeDescriptor typed = vard.getType();
2721 //generate for flags
2722 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
2723 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2725 if (fen_hashset!=null) {
2726 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext(); ) {
2727 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
2729 DNFFlag dflag=fen.getDNF();
2730 numberterms+=dflag.size();
2732 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
2734 for(int j=0; j<dflag.size(); j++) {
2736 output.println(",");
2737 Vector term=dflag.get(j);
2740 for(int k=0; k<term.size(); k++) {
2741 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
2742 FlagDescriptor fd=dfa.getFlag();
2743 boolean negated=dfa.getNegated();
2744 int flagid=1<<((Integer)flags.get(fd)).intValue();
2749 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
2754 output.println("};\n");
2757 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
2758 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2761 for(int j=0; j<tagel.numTags(); j++) {
2763 output.println(",");
2764 TempDescriptor tmp=tagel.getTemp(j);
2765 if (!slotnumber.containsKey(tmp)) {
2766 Integer slotint=new Integer(current_slot++);
2767 slotnumber.put(tmp,slotint);
2769 int slot=slotnumber.get(tmp).intValue();
2770 output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
2772 numtags = tagel.numTags();
2774 output.println("};");
2776 //store the result into a predicatemember struct
2777 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2778 output.println("/*type*/"+typed.getClassDesc().getId()+",");
2779 output.println("/* number of dnf terms */"+numberterms+",");
2780 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2781 output.println("/* number of tag */"+numtags+",");
2782 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2783 output.println("};\n");
2788 //generate an array that stores the entire predicate
2789 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2790 for( int j = 0; j<predicateindex; j++) {
2791 if( j != predicateindex-1) output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2792 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2794 output.println("};\n");
2795 return predicateindex;
2799 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
2800 generateOptionalHeader(headers);
2802 output.println("#include \"optionalstruct.h\"\n\n");
2803 output.println("#include \"stdlib.h\"\n");
2805 HashSet processedcd = new HashSet();
2807 Enumeration e = safeexecution.keys();
2808 while (e.hasMoreElements()) {
2811 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
2812 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp); //will be used several times
2814 //Generate the struct of optionals
2815 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2816 numotd = c_otd.size();
2817 if(maxotd<numotd) maxotd = numotd;
2818 if( !c_otd.isEmpty() ) {
2819 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext(); ) {
2820 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2822 //generate the int arrays for the predicate
2823 Predicate predicate = otd.predicate;
2824 int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
2825 TreeSet<Integer> fsset=new TreeSet<Integer>();
2826 //iterate through possible FSes corresponding to
2827 //the state when entering
2829 for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext(); ) {
2830 FlagState fs = (FlagState)fses.next();
2832 for(Iterator flags = fs.getFlags(); flags.hasNext(); ) {
2833 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2834 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2837 fsset.add(new Integer(flagid));
2838 //tag information not needed because tag
2839 //changes are not tolerated.
2842 output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2843 boolean needcomma=false;
2844 for(Iterator<Integer> it=fsset.iterator(); it.hasNext(); ) {
2847 output.println(it.next());
2850 output.println("};\n");
2853 //generate optionaltaskdescriptor that actually
2854 //includes exit fses, predicate and the task
2856 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2857 output.println("&task_"+otd.td.getSafeSymbol()+",");
2858 output.println("/*index*/"+otd.getIndex()+",");
2859 output.println("/*number of enter flags*/"+fsset.size()+",");
2860 output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2861 output.println("/*number of members */"+predicateindex+",");
2862 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2863 output.println("};\n");
2867 // if there are no optionals, there is no need to build the rest of the struct
2869 output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
2870 c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2871 if( !c_otd.isEmpty() ) {
2872 boolean needcomma=false;
2873 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext(); ) {
2874 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2876 output.println(",");
2878 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2881 output.println("};\n");
2883 //get all the possible flagstates reachable by an object
2884 Hashtable hashtbtemp = safeexecution.get(cdtemp);
2886 TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
2887 fsts.addAll(hashtbtemp.keySet());
2888 for(Iterator fsit=fsts.iterator(); fsit.hasNext(); ) {
2889 FlagState fs = (FlagState)fsit.next();
2892 //get the set of OptionalTaskDescriptors corresponding
2893 HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
2894 //iterate through the OptionalTaskDescriptors and
2895 //store the pointers to the optionals struct (see on
2896 //top) into an array
2898 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
2899 for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext(); ) {
2900 OptionalTaskDescriptor mm = mos.next();
2902 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
2904 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2907 output.println("};\n");
2909 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
2912 for(Iterator flags = fs.getFlags(); flags.hasNext(); ) {
2913 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2914 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2918 //process tag information
2921 boolean first = true;
2922 Enumeration tag_enum = fs.getTags();
2923 output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2924 while(tag_enum.hasMoreElements()) {
2926 TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
2930 output.println(", ");
2931 output.println("/*tagid*/"+state.getTagId(tagd));
2933 output.println("};");
2935 Set<TaskIndex> tiset=sa.getTaskIndex(fs);
2936 for(Iterator<TaskIndex> itti=tiset.iterator(); itti.hasNext(); ) {
2937 TaskIndex ti=itti.next();
2941 Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
2943 output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
2944 boolean needcomma=false;
2945 for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator(); otdit.hasNext(); ) {
2946 OptionalTaskDescriptor otd=otdit.next();
2950 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2952 output.println("};");
2954 output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
2955 output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
2956 output.print(ti.getIndex()+", ");
2957 output.print(otdset.size()+", ");
2958 output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
2959 output.println("};");
2962 tiset=sa.getTaskIndex(fs);
2963 boolean needcomma=false;
2965 output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2966 for(Iterator<TaskIndex> itti=tiset.iterator(); itti.hasNext(); ) {
2967 TaskIndex ti=itti.next();
2968 if (ti.isRuntime()) {
2975 output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
2977 output.println("};\n");
2979 //Store the result in fsanalysiswrapper
2981 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
2982 output.println("/*flag*/"+flagid+",");
2983 output.println("/* number of tags*/"+tagcounter+",");
2984 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2985 output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
2986 output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2987 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
2988 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
2989 output.println("};\n");
2993 //Build the array of fsanalysiswrappers
2994 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
2995 boolean needcomma=false;
2996 for(int i = 0; i<fscounter; i++) {
2997 if (needcomma) output.print(",");
2998 output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
3001 output.println("};");
3003 //Build the classanalysiswrapper referring to the previous array
3004 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
3005 output.println("/*type*/"+cdtemp.getId()+",");
3006 output.println("/*numotd*/"+numotd+",");
3007 output.println("otdarray"+cdtemp.getSafeSymbol()+",");
3008 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
3009 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
3010 processedcd.add(cdtemp);
3013 //build an array containing every classes for which code has been build
3014 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
3015 for(int i=0; i<state.numClasses(); i++) {
3016 ClassDescriptor cn=cdarray[i];
3019 if ((cn != null) && (processedcd.contains(cn)))
3020 output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
3022 output.print("NULL");
3024 output.println("};");
3026 output.println("#define MAXOTD "+maxotd);
3027 headers.println("#endif");
3030 public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
3031 Relation r=new Relation();
3032 for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator(); otdit.hasNext(); ) {
3033 OptionalTaskDescriptor otd=otdit.next();
3034 TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
3038 LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
3039 for(Iterator it=r.keySet().iterator(); it.hasNext(); ) {
3040 Set s=r.get(it.next());
3041 for(Iterator it2=s.iterator(); it2.hasNext(); ) {
3042 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();
3050 // override these methods in a subclass of BuildCode
3051 // to generate code for additional systems
3052 protected void printExtraArrayFields(PrintWriter outclassdefs) {
3054 protected void outputTransCode(PrintWriter output) {
3056 protected void buildCodeSetup() {
3058 protected void generateSizeArrayExtensions(PrintWriter outclassdefs) {
3060 protected void additionalIncludesMethodsHeader(PrintWriter outmethodheader) {
3062 protected void preCodeGenInitialization() {
3064 protected void postCodeGenCleanUp() {
3066 protected void additionalCodeGen(PrintWriter outmethodheader,
3067 PrintWriter outstructs,
3068 PrintWriter outmethod) {
3070 protected void additionalCodeAtTopOfMain(PrintWriter outmethod) {
3072 protected void additionalCodeAtBottomOfMain(PrintWriter outmethod) {
3074 protected void additionalIncludesMethodsImplementation(PrintWriter outmethod) {
3076 protected void additionalIncludesStructsHeader(PrintWriter outstructs) {
3078 protected void additionalClassObjectFields(PrintWriter outclassdefs) {
3080 protected void additionalCodeAtTopMethodsImplementation(PrintWriter outmethod) {
3082 protected void additionalCodeAtTopFlatMethodBody(PrintWriter output, FlatMethod fm) {
3084 protected void additionalCodePreNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
3086 protected void additionalCodePostNode(FlatMethod fm, FlatNode fn, PrintWriter output) {