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;
53 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil) {
54 this(st, temptovar, typeutil, null);
57 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa) {
60 callgraph=new CallGraph(state);
61 this.temptovar=temptovar;
62 paramstable=new Hashtable();
63 tempstable=new Hashtable();
64 fieldorder=new Hashtable();
65 flagorder=new Hashtable();
66 this.typeutil=typeutil;
67 virtualcalls=new Virtual(state, null);
68 printedfieldstbl = new Hashtable<String, ClassDescriptor>();
71 /** The buildCode method outputs C code for all the methods. The Flat
72 * versions of the methods must already be generated and stored in
73 * the State object. */
76 public void buildCode() {
77 /* Create output streams to write to */
78 PrintWriter outclassdefs=null;
79 PrintWriter outstructs=null;
80 PrintWriter outrepairstructs=null;
81 PrintWriter outmethodheader=null;
82 PrintWriter outmethod=null;
83 PrintWriter outvirtual=null;
84 PrintWriter outtask=null;
85 PrintWriter outtaskdefs=null;
86 PrintWriter outoptionalarrays=null;
87 PrintWriter optionalheaders=null;
88 PrintWriter outglobaldefs=null;
89 PrintWriter outglobaldefsprim=null;
92 buildCodeSetup(); //EXTENSION POINT
93 outstructs=new CodePrinter(new FileOutputStream(PREFIX+"structdefs.h"), true);
94 outmethodheader=new CodePrinter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
95 outclassdefs=new CodePrinter(new FileOutputStream(PREFIX+"classdefs.h"), true);
96 outglobaldefs=new CodePrinter(new FileOutputStream(PREFIX+"globaldefs.h"), true);
97 outglobaldefsprim=new CodePrinter(new FileOutputStream(PREFIX+"globaldefsprim.h"), true);
98 outmethod=new CodePrinter(new FileOutputStream(PREFIX+"methods.c"), true);
99 outvirtual=new CodePrinter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
101 outtask=new CodePrinter(new FileOutputStream(PREFIX+"task.h"), true);
102 outtaskdefs=new CodePrinter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
103 if (state.OPTIONAL) {
104 outoptionalarrays=new CodePrinter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
105 optionalheaders=new CodePrinter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
108 if (state.structfile!=null) {
109 outrepairstructs=new CodePrinter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
111 } catch (Exception e) {
116 /* Fix field safe symbols due to shadowing */
117 FieldShadow.handleFieldShadow(state);
119 /* Build the virtual dispatch tables */
120 buildVirtualTables(outvirtual);
122 /* Tag the methods that are invoked by static blocks */
123 tagMethodInvokedByStaticBlock();
125 /* Output includes */
126 outmethodheader.println("#ifndef METHODHEADERS_H");
127 outmethodheader.println("#define METHODHEADERS_H");
128 outmethodheader.println("#include \"structdefs.h\"");
130 if (state.EVENTMONITOR) {
131 outmethodheader.println("#include \"monitor.h\"");
134 additionalIncludesMethodsHeader(outmethodheader);
136 /* Output Structures */
137 outputStructs(outstructs);
139 // Output the C class declarations
140 // These could mutually reference each other
142 outglobaldefs.println("#ifndef __GLOBALDEF_H_");
143 outglobaldefs.println("#define __GLOBALDEF_H_");
144 outglobaldefs.println("");
145 outglobaldefs.println("struct global_defs_t {");
146 outglobaldefs.println(" int size;");
147 outglobaldefsprim.println("#ifndef __GLOBALDEFPRIM_H_");
148 outglobaldefsprim.println("#define __GLOBALDEFPRIM_H_");
149 outglobaldefsprim.println("");
150 outglobaldefsprim.println("struct global_defsprim_t {");
152 outclassdefs.println("#ifndef __CLASSDEF_H_");
153 outclassdefs.println("#define __CLASSDEF_H_");
154 outputClassDeclarations(outclassdefs, outglobaldefs, outglobaldefsprim);
156 // Output function prototypes and structures for parameters
157 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
158 while(it.hasNext()) {
159 ClassDescriptor cn=(ClassDescriptor)it.next();
160 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader, outglobaldefs, outglobaldefsprim);
162 outclassdefs.println("#include \"globaldefs.h\"");
163 outclassdefs.println("#include \"globaldefsprim.h\"");
164 outclassdefs.println("#endif");
165 outclassdefs.close();
167 outglobaldefs.println("};");
168 outglobaldefs.println("");
169 outglobaldefs.println("extern struct global_defs_t * global_defs_p;");
170 outglobaldefs.println("#endif");
171 outglobaldefs.flush();
172 outglobaldefs.close();
174 outglobaldefsprim.println("};");
175 outglobaldefsprim.println("");
176 outglobaldefsprim.println("extern struct global_defsprim_t * global_defsprim_p;");
177 outglobaldefsprim.println("#endif");
178 outglobaldefsprim.flush();
179 outglobaldefsprim.close();
182 /* Map flags to integers */
183 /* The runtime keeps track of flags using these integers */
184 it=state.getClassSymbolTable().getDescriptorsIterator();
185 while(it.hasNext()) {
186 ClassDescriptor cn=(ClassDescriptor)it.next();
190 generateTaskStructs(outstructs, outmethodheader);
192 /* Outputs generic task structures if this is a task
194 outputTaskTypes(outtask);
198 // an opportunity for subclasses to do extra
200 preCodeGenInitialization();
203 /* Build the actual methods */
204 outputMethods(outmethod);
207 // opportunity for subclasses to gen extra code
208 additionalCodeGen(outmethodheader,
214 /* Output code for tasks */
215 outputTaskCode(outtaskdefs, outmethod);
217 /* Record maximum number of task parameters */
218 outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
219 } else if (state.main!=null) {
220 /* Generate main method */
221 outputMainMethod(outmethod);
224 /* Generate information for task with optional parameters */
225 if (state.TASK&&state.OPTIONAL) {
226 generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
227 outoptionalarrays.close();
230 /* Output structure definitions for repair tool */
231 if (state.structfile!=null) {
232 buildRepairStructs(outrepairstructs);
233 outrepairstructs.close();
237 outmethodheader.println("#endif");
238 outmethodheader.close();
240 outstructs.println("#endif");
245 postCodeGenCleanUp();
250 /* This method goes though the call graph and tag those methods that are
251 * invoked inside static blocks
253 protected void tagMethodInvokedByStaticBlock() {
254 Iterator it_sclasses = this.state.getSClassSymbolTable().getDescriptorsIterator();
255 MethodDescriptor current_md=null;
256 HashSet tovisit=new HashSet();
257 HashSet visited=new HashSet();
259 while(it_sclasses.hasNext()) {
260 ClassDescriptor cd = (ClassDescriptor)it_sclasses.next();
261 MethodDescriptor md = (MethodDescriptor)cd.getMethodTable().get("staticblocks");
267 while(!tovisit.isEmpty()) {
268 current_md=(MethodDescriptor)tovisit.iterator().next();
269 tovisit.remove(current_md);
270 visited.add(current_md);
271 Iterator it_callee = this.callgraph.getCalleeSet(current_md).iterator();
272 while(it_callee.hasNext()) {
273 Descriptor d = (Descriptor)it_callee.next();
274 if(d instanceof MethodDescriptor) {
275 if(!visited.contains(d)) {
276 ((MethodDescriptor)d).setIsInvokedByStatic(true);
284 /* This code generates code for each static block and static field
286 protected void outputStaticBlocks(PrintWriter outmethod) {
287 // execute all the static blocks and all the static field initializations
291 /* This code generates code to create a Class object for each class for
294 protected void outputClassObjects(PrintWriter outmethod) {
295 // for each class, initialize its Class object
299 /* This code just generates the main C method for java programs.
300 * The main C method packs up the arguments into a string array
301 * and passes it to the java main method. */
303 protected void outputMainMethod(PrintWriter outmethod) {
304 outmethod.println("int main(int argc, const char *argv[]) {");
305 outmethod.println(" int i;");
307 outputStaticBlocks(outmethod);
308 outputClassObjects(outmethod);
311 additionalCodeAtTopOfMain(outmethod);
314 outmethod.println("initializethreads();");
317 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
318 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(NULL, STRINGARRAYTYPE, argc-1);");
320 outmethod.println(" struct ArrayObject * stringarray=allocate_newarray(STRINGARRAYTYPE, argc-1);");
322 outmethod.println(" for(i=1;i<argc;i++) {");
323 outmethod.println(" int length=strlen(argv[i]);");
325 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
326 outmethod.println(" struct ___String___ *newstring=NewString(NULL, argv[i], length);");
328 outmethod.println(" struct ___String___ *newstring=NewString(argv[i], length);");
330 outmethod.println(" ((void **)(((char *)& stringarray->___length___)+sizeof(int)))[i-1]=newstring;");
331 outmethod.println(" }");
333 MethodDescriptor md=typeutil.getMain();
334 ClassDescriptor cd=typeutil.getMainClass();
336 outmethod.println(" {");
337 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
338 outmethod.print(" struct "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
339 outmethod.println("1, NULL,"+"stringarray};");
340 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(& __parameterlist__);");
342 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(stringarray);");
344 outmethod.println(" }");
347 outmethod.println("pthread_mutex_lock(&gclistlock);");
348 outmethod.println("threadcount--;");
349 outmethod.println("pthread_cond_signal(&gccond);");
350 outmethod.println("pthread_mutex_unlock(&gclistlock);");
353 if (state.EVENTMONITOR) {
354 outmethod.println("dumpdata();");
358 outmethod.println("pthread_exit(NULL);");
361 additionalCodeAtBottomOfMain(outmethod);
363 outmethod.println("}");
366 /* This method outputs code for each task. */
368 protected void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod) {
369 /* Compile task based program */
370 outtaskdefs.println("#include \"task.h\"");
371 outtaskdefs.println("#include \"methodheaders.h\"");
372 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
373 while(taskit.hasNext()) {
374 TaskDescriptor td=(TaskDescriptor)taskit.next();
375 FlatMethod fm=state.getMethodFlat(td);
376 generateFlatMethod(fm, outmethod);
377 generateTaskDescriptor(outtaskdefs, fm, td);
380 //Output task descriptors
381 taskit=state.getTaskSymbolTable().getDescriptorsIterator();
382 outtaskdefs.println("struct taskdescriptor * taskarray[]= {");
384 while(taskit.hasNext()) {
385 TaskDescriptor td=(TaskDescriptor)taskit.next();
389 outtaskdefs.println(",");
390 outtaskdefs.print("&task_"+td.getSafeSymbol());
392 outtaskdefs.println("};");
394 outtaskdefs.println("int numtasks="+state.getTaskSymbolTable().getValueSet().size()+";");
398 /* This method outputs most of the methods.c file. This includes
399 * some standard includes and then an array with the sizes of
400 * objets and array that stores supertype and then the code for
401 * the Java methods.. */
402 protected void outputMethods(PrintWriter outmethod) {
403 outmethod.println("#include \"methodheaders.h\"");
404 outmethod.println("#include \"virtualtable.h\"");
405 outmethod.println("#include \"runtime.h\"");
407 // always include: compiler directives will leave out
408 // instrumentation when option is not set
409 outmethod.println("#include \"coreprof/coreprof.h\"");
411 if (state.FASTCHECK) {
412 outmethod.println("#include \"localobjects.h\"");
414 if(state.MULTICORE) {
416 outmethod.println("#include \"task.h\"");
418 outmethod.println("#include \"multicoreruntime.h\"");
419 outmethod.println("#include \"runtime_arch.h\"");
421 if (state.THREAD||state.DSM||state.SINGLETM) {
422 outmethod.println("#include <thread.h>");
425 outmethod.println("#include \"thread.h\"");
427 if (state.main!=null) {
428 outmethod.println("#include <string.h>");
430 if (state.CONSCHECK) {
431 outmethod.println("#include \"checkers.h\"");
435 additionalIncludesMethodsImplementation(outmethod);
437 outmethod.println("struct global_defs_t * global_defs_p;");
438 outmethod.println("struct global_defsprim_t * global_defsprim_p;");
439 //Store the sizes of classes & array elements
440 generateSizeArray(outmethod);
442 //Store table of supertypes
443 generateSuperTypeTable(outmethod);
445 //Store the layout of classes
446 generateLayoutStructs(outmethod);
449 additionalCodeAtTopMethodsImplementation(outmethod);
451 generateMethods(outmethod);
454 protected void generateMethods(PrintWriter outmethod) {
455 /* Generate code for methods */
456 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
457 while(classit.hasNext()) {
458 ClassDescriptor cn=(ClassDescriptor)classit.next();
459 Iterator methodit=cn.getMethods();
460 while(methodit.hasNext()) {
461 /* Classify parameters */
462 MethodDescriptor md=(MethodDescriptor)methodit.next();
463 FlatMethod fm=state.getMethodFlat(md);
464 if (!md.getModifiers().isNative()) {
465 generateFlatMethod(fm, outmethod);
471 protected void outputStructs(PrintWriter outstructs) {
472 outstructs.println("#ifndef STRUCTDEFS_H");
473 outstructs.println("#define STRUCTDEFS_H");
474 outstructs.println("#include \"classdefs.h\"");
475 outstructs.println("#ifndef INTPTR");
476 outstructs.println("#ifdef BIT64");
477 outstructs.println("#define INTPTR long");
478 outstructs.println("#else");
479 outstructs.println("#define INTPTR int");
480 outstructs.println("#endif");
481 outstructs.println("#endif");
484 additionalIncludesStructsHeader(outstructs);
487 /* Output #defines that the runtime uses to determine type
488 * numbers for various objects it needs */
489 outstructs.println("#define MAXCOUNT "+maxcount);
491 outstructs.println("#define STRINGARRAYTYPE "+
492 (state.getArrayNumber(
493 (new TypeDescriptor(typeutil.getClass(TypeUtil.StringClass))).makeArray(state))+state.numClasses()));
495 outstructs.println("#define OBJECTARRAYTYPE "+
496 (state.getArrayNumber(
497 (new TypeDescriptor(typeutil.getClass(TypeUtil.ObjectClass))).makeArray(state))+state.numClasses()));
500 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
501 outstructs.println("#define CHARARRAYTYPE "+
502 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
504 outstructs.println("#define BYTEARRAYTYPE "+
505 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state))+state.numClasses()));
507 outstructs.println("#define BYTEARRAYARRAYTYPE "+
508 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.BYTE)).makeArray(state).makeArray(state))+state.numClasses()));
510 outstructs.println("#define NUMCLASSES "+state.numClasses());
511 int totalClassSize = state.numClasses() + state.numArrays();
512 outstructs.println("#define TOTALNUMCLASSANDARRAY "+ totalClassSize);
514 outstructs.println("#define STARTUPTYPE "+typeutil.getClass(TypeUtil.StartupClass).getId());
515 outstructs.println("#define TAGTYPE "+typeutil.getClass(TypeUtil.TagClass).getId());
516 outstructs.println("#define TAGARRAYTYPE "+
517 (state.getArrayNumber(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass)).makeArray(state))+state.numClasses()));
521 protected void outputClassDeclarations(PrintWriter outclassdefs, PrintWriter outglobaldefs, PrintWriter outglobaldefsprim) {
522 if (state.THREAD||state.DSM||state.SINGLETM)
523 outclassdefs.println("#include <pthread.h>");
524 outclassdefs.println("#ifndef INTPTR");
525 outclassdefs.println("#ifdef BIT64");
526 outclassdefs.println("#define INTPTR long");
527 outclassdefs.println("#else");
528 outclassdefs.println("#define INTPTR int");
529 outclassdefs.println("#endif");
530 outclassdefs.println("#endif");
532 outclassdefs.println("#include \"optionalstruct.h\"");
533 outclassdefs.println("struct "+arraytype+";");
534 /* Start by declaring all structs */
535 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
536 while(it.hasNext()) {
537 ClassDescriptor cn=(ClassDescriptor)it.next();
538 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
540 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
541 // this class has static fields/blocks, need to add a global flag to
542 // indicate if its static fields have been initialized and/or if its
543 // static blocks have been executed
544 outglobaldefsprim.println(" int "+cn.getSafeSymbol()+"static_block_exe_flag;");
547 // for each class, create a global object
548 outglobaldefs.println(" struct ___Object___ *"+cn.getSafeSymbol()+"classobj;");
550 outclassdefs.println("");
551 //Print out definition for array type
552 outclassdefs.println("struct "+arraytype+" {");
553 outclassdefs.println(" int type;");
556 additionalClassObjectFields(outclassdefs);
559 if (state.EVENTMONITOR) {
560 outclassdefs.println(" int objuid;");
563 outclassdefs.println(" pthread_t tid;");
564 outclassdefs.println(" void * lockentry;");
565 outclassdefs.println(" int lockcount;");
568 outclassdefs.println(" int mutex;");
569 outclassdefs.println(" int objlock;");
570 if(state.MULTICOREGC) {
571 outclassdefs.println(" int marked;");
575 outclassdefs.println(" int flag;");
576 if(!state.MULTICORE) {
577 outclassdefs.println(" void * flagptr;");
579 outclassdefs.println(" int version;");
580 outclassdefs.println(" int * lock;"); // lock entry for this obj
581 outclassdefs.println(" int mutex;");
582 outclassdefs.println(" int lockcount;");
583 if(state.MULTICOREGC) {
584 outclassdefs.println(" int marked;");
588 outclassdefs.println(" int numfses;");
589 outclassdefs.println(" int * fses;");
593 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs, outglobaldefs, outglobaldefsprim);
594 printedfieldstbl.clear();
595 printExtraArrayFields(outclassdefs);
596 if (state.ARRAYPAD) {
597 outclassdefs.println(" int paddingforarray;");
600 outclassdefs.println(" int ___length___;");
601 outclassdefs.println("};\n");
604 // TODO add version for normal Java later
605 outclassdefs.println("");
606 //Print out definition for Class type
607 outclassdefs.println("struct Class {");
608 outclassdefs.println(" int type;");
611 additionalClassObjectFields(outclassdefs);
614 if (state.EVENTMONITOR) {
615 outclassdefs.println(" int objuid;");
618 outclassdefs.println(" pthread_t tid;");
619 outclassdefs.println(" void * lockentry;");
620 outclassdefs.println(" int lockcount;");
623 outclassdefs.println(" int mutex;");
624 outclassdefs.println(" int objlock;");
625 if(state.MULTICOREGC) {
626 outclassdefs.println(" int marked;");
630 outclassdefs.println(" int flag;");
631 if(!state.MULTICORE) {
632 outclassdefs.println(" void * flagptr;");
634 outclassdefs.println(" int version;");
635 outclassdefs.println(" int * lock;"); // lock entry for this obj
636 outclassdefs.println(" int mutex;");
637 outclassdefs.println(" int lockcount;");
638 if(state.MULTICOREGC) {
639 outclassdefs.println(" int marked;");
643 outclassdefs.println(" int numfses;");
644 outclassdefs.println(" int * fses;");
647 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs, outglobaldefs, outglobaldefsprim);
648 printedfieldstbl.clear();
649 outclassdefs.println("};\n");
652 outclassdefs.println("");
653 outclassdefs.println("extern int classsize[];");
654 outclassdefs.println("extern int hasflags[];");
655 outclassdefs.println("extern unsigned INTPTR * pointerarray[];");
656 outclassdefs.println("extern int* supertypes[];");
657 outclassdefs.println("");
660 /** Prints out definitions for generic task structures */
662 protected void outputTaskTypes(PrintWriter outtask) {
663 outtask.println("#ifndef _TASK_H");
664 outtask.println("#define _TASK_H");
665 outtask.println("struct parameterdescriptor {");
666 outtask.println("int type;");
667 outtask.println("int numberterms;");
668 outtask.println("int *intarray;");
669 outtask.println("void * queue;");
670 outtask.println("int numbertags;");
671 outtask.println("int *tagarray;");
672 outtask.println("};");
674 outtask.println("struct taskdescriptor {");
675 outtask.println("void * taskptr;");
676 outtask.println("int numParameters;");
677 outtask.println(" int numTotal;");
678 outtask.println("struct parameterdescriptor **descriptorarray;");
679 outtask.println("char * name;");
680 outtask.println("};");
681 outtask.println("extern struct taskdescriptor * taskarray[];");
682 outtask.println("extern numtasks;");
683 outtask.println("#endif");
687 protected void buildRepairStructs(PrintWriter outrepairstructs) {
688 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
689 while(classit.hasNext()) {
690 ClassDescriptor cn=(ClassDescriptor)classit.next();
691 outrepairstructs.println("structure "+cn.getSymbol()+" {");
692 outrepairstructs.println(" int __type__;");
694 outrepairstructs.println(" int __flag__;");
695 if(!state.MULTICORE) {
696 outrepairstructs.println(" int __flagptr__;");
699 printRepairStruct(cn, outrepairstructs);
700 outrepairstructs.println("}\n");
703 for(int i=0; i<state.numArrays(); i++) {
704 TypeDescriptor tdarray=arraytable[i];
705 TypeDescriptor tdelement=tdarray.dereference();
706 outrepairstructs.println("structure "+arraytype+"_"+state.getArrayNumber(tdarray)+" {");
707 outrepairstructs.println(" int __type__;");
708 printRepairStruct(typeutil.getClass(TypeUtil.ObjectClass), outrepairstructs);
709 outrepairstructs.println(" int length;");
710 outrepairstructs.println("}\n");
714 protected void printRepairStruct(ClassDescriptor cn, PrintWriter output) {
715 ClassDescriptor sp=cn.getSuperDesc();
717 printRepairStruct(sp, output);
719 Vector fields=(Vector)fieldorder.get(cn);
721 for(int i=0; i<fields.size(); i++) {
722 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
723 if (fd.getType().isArray()) {
724 output.println(" "+arraytype+"_"+ state.getArrayNumber(fd.getType()) +" * "+fd.getSymbol()+";");
725 } else if (fd.getType().isClass())
726 output.println(" "+fd.getType().getRepairSymbol()+" * "+fd.getSymbol()+";");
727 else if (fd.getType().isFloat())
728 output.println(" int "+fd.getSymbol()+"; /* really float */");
730 output.println(" "+fd.getType().getRepairSymbol()+" "+fd.getSymbol()+";");
734 /** This method outputs TaskDescriptor information */
735 protected void generateTaskDescriptor(PrintWriter output, FlatMethod fm, TaskDescriptor task) {
736 for (int i=0; i<task.numParameters(); i++) {
737 VarDescriptor param_var=task.getParameter(i);
738 TypeDescriptor param_type=task.getParamType(i);
739 FlagExpressionNode param_flag=task.getFlag(param_var);
740 TagExpressionList param_tag=task.getTag(param_var);
743 if (param_flag==null) {
744 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
745 output.println("0x0, 0x0 };");
748 DNFFlag dflag=param_flag.getDNF();
749 dnfterms=dflag.size();
751 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
752 output.println("int parameterdnf_"+i+"_"+task.getSafeSymbol()+"[]={");
753 for(int j=0; j<dflag.size(); j++) {
756 Vector term=dflag.get(j);
759 for(int k=0; k<term.size(); k++) {
760 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
761 FlagDescriptor fd=dfa.getFlag();
762 boolean negated=dfa.getNegated();
763 int flagid=1<<((Integer)flags.get(fd)).intValue();
768 output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
770 output.println("};");
773 output.println("int parametertag_"+i+"_"+task.getSafeSymbol()+"[]={");
775 for(int j=0; j<param_tag.numTags(); j++) {
778 /* for each tag we need */
779 /* which slot it is */
780 /* what type it is */
781 TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
782 TempDescriptor tmp=param_tag.getTemp(j);
783 int slot=fm.getTagInt(tmp);
784 output.println(slot+", "+state.getTagId(tvd.getTag()));
786 output.println("};");
788 output.println("struct parameterdescriptor parameter_"+i+"_"+task.getSafeSymbol()+"={");
789 output.println("/* type */"+param_type.getClassDesc().getId()+",");
790 output.println("/* number of DNF terms */"+dnfterms+",");
791 output.println("parameterdnf_"+i+"_"+task.getSafeSymbol()+",");
792 output.println("0,");
794 output.println("/* number of tags */"+param_tag.numTags()+",");
796 output.println("/* number of tags */ 0,");
797 output.println("parametertag_"+i+"_"+task.getSafeSymbol());
798 output.println("};");
802 output.println("struct parameterdescriptor * parameterdescriptors_"+task.getSafeSymbol()+"[] = {");
803 for (int i=0; i<task.numParameters(); i++) {
806 output.print("¶meter_"+i+"_"+task.getSafeSymbol());
808 output.println("};");
810 output.println("struct taskdescriptor task_"+task.getSafeSymbol()+"={");
811 output.println("&"+task.getSafeSymbol()+",");
812 output.println("/* number of parameters */" +task.numParameters() + ",");
813 int numtotal=task.numParameters()+fm.numTags();
814 output.println("/* number total parameters */" +numtotal + ",");
815 output.println("parameterdescriptors_"+task.getSafeSymbol()+",");
816 output.println("\""+task.getSymbol()+"\"");
817 output.println("};");
821 /** The buildVirtualTables method outputs the virtual dispatch
822 * tables for methods. */
824 protected void buildVirtualTables(PrintWriter outvirtual) {
825 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
826 while(classit.hasNext()) {
827 ClassDescriptor cd=(ClassDescriptor)classit.next();
828 if (virtualcalls.getMethodCount(cd)>maxcount)
829 maxcount=virtualcalls.getMethodCount(cd);
831 MethodDescriptor[][] virtualtable=null;
832 virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
834 /* Fill in virtual table */
835 classit=state.getClassSymbolTable().getDescriptorsIterator();
836 while(classit.hasNext()) {
837 ClassDescriptor cd=(ClassDescriptor)classit.next();
838 fillinRow(cd, virtualtable, cd.getId());
841 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
842 Iterator arrayit=state.getArrayIterator();
843 while(arrayit.hasNext()) {
844 TypeDescriptor td=(TypeDescriptor)arrayit.next();
845 int id=state.getArrayNumber(td);
846 fillinRow(objectcd, virtualtable, id+state.numClasses());
849 outvirtual.print("void * virtualtable[]={");
850 boolean needcomma=false;
851 for(int i=0; i<state.numClasses()+state.numArrays(); i++) {
852 for(int j=0; j<maxcount; j++) {
854 outvirtual.print(", ");
855 if (virtualtable[i][j]!=null) {
856 MethodDescriptor md=virtualtable[i][j];
857 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
859 outvirtual.print("0");
863 outvirtual.println("");
865 outvirtual.println("};");
869 protected void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
870 /* Get inherited methods */
871 if (cd.getSuperDesc()!=null)
872 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
873 Iterator it_sifs = cd.getSuperInterfaces();
874 while(it_sifs.hasNext()) {
875 ClassDescriptor superif = (ClassDescriptor)it_sifs.next();
876 fillinRow(superif, virtualtable, rownum);
878 /* Override them with our methods */
879 for(Iterator it=cd.getMethods(); it.hasNext(); ) {
880 MethodDescriptor md=(MethodDescriptor)it.next();
881 if (md.isStatic()||md.getReturnType()==null)
883 int methodnum=virtualcalls.getMethodNumber(md);
884 virtualtable[rownum][methodnum]=md;
888 /** Generate array that contains the sizes of class objects. The
889 * object allocation functions in the runtime use this
892 protected void generateSizeArray(PrintWriter outclassdefs) {
893 outclassdefs.print("extern struct prefetchCountStats * evalPrefetch;\n");
894 generateSizeArrayExtensions(outclassdefs);
896 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
897 cdarray=new ClassDescriptor[state.numClasses()];
900 while(it.hasNext()) {
901 ClassDescriptor cd=(ClassDescriptor)it.next();
902 cdarray[cd.getId()] = cd;
905 arraytable=new TypeDescriptor[state.numArrays()];
907 Iterator arrayit=state.getArrayIterator();
908 while(arrayit.hasNext()) {
909 TypeDescriptor td=(TypeDescriptor)arrayit.next();
910 int id=state.getArrayNumber(td);
914 /* Print out types */
915 outclassdefs.println("/* ");
916 for(int i=0; i<state.numClasses(); i++) {
917 ClassDescriptor cd=cdarray[i];
919 outclassdefs.println("NULL " + i);
921 outclassdefs.println(cd +" "+i);
925 for(int i=0; i<state.numArrays(); i++) {
926 TypeDescriptor arraytd=arraytable[i];
927 outclassdefs.println(arraytd.toPrettyString() +" "+(i+state.numClasses()));
930 outclassdefs.println("*/");
933 outclassdefs.print("int classsize[]={");
935 boolean needcomma=false;
936 for(int i=0; i<state.numClasses(); i++) {
938 outclassdefs.print(", ");
940 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
942 outclassdefs.print("0");
948 for(int i=0; i<state.numArrays(); i++) {
950 outclassdefs.print(", ");
951 TypeDescriptor tdelement=arraytable[i].dereference();
952 if (tdelement.isArray()||tdelement.isClass()||tdelement.isNull())
953 outclassdefs.print("sizeof(void *)");
955 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
959 outclassdefs.println("};");
961 ClassDescriptor objectclass=typeutil.getClass(TypeUtil.ObjectClass);
963 outclassdefs.print("int typearray[]={");
964 for(int i=0; i<state.numClasses(); i++) {
965 ClassDescriptor cd=cdarray[i];
966 ClassDescriptor supercd=i>0 ? cd.getSuperDesc() : null;
968 outclassdefs.print(", ");
970 outclassdefs.print("-1");
972 outclassdefs.print(supercd.getId());
976 for(int i=0; i<state.numArrays(); i++) {
977 TypeDescriptor arraytd=arraytable[i];
978 ClassDescriptor arraycd=arraytd.getClassDesc();
981 outclassdefs.print(", ");
982 outclassdefs.print(objectclass.getId());
986 ClassDescriptor cd=arraycd.getSuperDesc();
989 TypeDescriptor supertd=new TypeDescriptor(cd);
990 supertd.setArrayCount(arraytd.getArrayCount());
991 type=state.getArrayNumber(supertd);
993 type+=state.numClasses();
996 cd=cd.getSuperDesc();
999 outclassdefs.print(", ");
1000 outclassdefs.print(type);
1004 outclassdefs.println("};");
1009 outclassdefs.print("int typearray2[]={");
1010 for(int i=0; i<state.numArrays(); i++) {
1011 TypeDescriptor arraytd=arraytable[i];
1012 ClassDescriptor arraycd=arraytd.getClassDesc();
1013 if (arraycd==null) {
1015 outclassdefs.print(", ");
1016 outclassdefs.print("-1");
1020 ClassDescriptor cd=arraycd.getSuperDesc();
1021 int level=arraytd.getArrayCount()-1;
1023 for(; level>0; level--) {
1024 TypeDescriptor supertd=new TypeDescriptor(objectclass);
1025 supertd.setArrayCount(level);
1026 type=state.getArrayNumber(supertd);
1028 type+=state.numClasses();
1033 outclassdefs.print(", ");
1034 outclassdefs.print(type);
1038 outclassdefs.println("};");
1041 /** Constructs params and temp objects for each method or task.
1042 * These objects tell the compiler which temps need to be
1045 protected void generateTempStructs(FlatMethod fm) {
1046 MethodDescriptor md=fm.getMethod();
1047 TaskDescriptor task=fm.getTask();
1048 ParamsObject objectparams=md!=null ? new ParamsObject(md,tag++) : new ParamsObject(task, tag++);
1050 paramstable.put(md, objectparams);
1052 paramstable.put(task, objectparams);
1054 for(int i=0; i<fm.numParameters(); i++) {
1055 TempDescriptor temp=fm.getParameter(i);
1056 TypeDescriptor type=temp.getType();
1057 if (type.isPtr()&&((GENERATEPRECISEGC) || (this.state.MULTICOREGC)))
1058 objectparams.addPtr(temp);
1060 objectparams.addPrim(temp);
1063 for(int i=0; i<fm.numTags(); i++) {
1064 TempDescriptor temp=fm.getTag(i);
1065 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
1066 objectparams.addPtr(temp);
1068 objectparams.addPrim(temp);
1071 TempObject objecttemps=md!=null ? new TempObject(objectparams,md,tag++) : new TempObject(objectparams, task, tag++);
1073 tempstable.put(md, objecttemps);
1075 tempstable.put(task, objecttemps);
1077 for(Iterator nodeit=fm.getNodeSet().iterator(); nodeit.hasNext(); ) {
1078 FlatNode fn=(FlatNode)nodeit.next();
1079 TempDescriptor[] writes=fn.writesTemps();
1080 for(int i=0; i<writes.length; i++) {
1081 TempDescriptor temp=writes[i];
1082 TypeDescriptor type=temp.getType();
1083 if (type.isPtr()&&((GENERATEPRECISEGC) || (this.state.MULTICOREGC)))
1084 objecttemps.addPtr(temp);
1086 objecttemps.addPrim(temp);
1091 /** This method outputs the following information about classes
1093 * (1) For classes, what are the locations of pointers.
1094 * (2) For arrays, does the array contain pointers or primitives.
1095 * (3) For classes, does the class contain flags.
1098 protected void generateLayoutStructs(PrintWriter output) {
1099 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
1100 while(it.hasNext()) {
1101 ClassDescriptor cn=(ClassDescriptor)it.next();
1102 output.println("unsigned INTPTR "+cn.getSafeSymbol()+"_pointers[]={");
1103 Iterator allit=cn.getFieldTable().getAllDescriptorsIterator();
1105 while(allit.hasNext()) {
1106 FieldDescriptor fd=(FieldDescriptor)allit.next();
1107 TypeDescriptor type=fd.getType();
1111 output.print(count);
1112 allit=cn.getFieldTable().getAllDescriptorsIterator();
1113 while(allit.hasNext()) {
1114 FieldDescriptor fd=(FieldDescriptor)allit.next();
1115 if(fd.isStatic() || fd.isVolatile()) {
1118 TypeDescriptor type=fd.getType();
1120 output.println(",");
1121 output.print("((unsigned INTPTR)&(((struct "+cn.getSafeSymbol() +" *)0)->"+
1122 fd.getSafeSymbol()+"))");
1125 output.println("};");
1127 output.println("unsigned INTPTR * pointerarray[]={");
1128 boolean needcomma=false;
1129 for(int i=0; i<state.numClasses(); i++) {
1130 ClassDescriptor cn=cdarray[i];
1132 output.println(",");
1135 output.print(cn.getSafeSymbol()+"_pointers");
1137 output.print("NULL");
1141 for(int i=0; i<state.numArrays(); i++) {
1143 output.println(", ");
1144 TypeDescriptor tdelement=arraytable[i].dereference();
1145 if (tdelement.isArray()||tdelement.isClass())
1146 output.print("((unsigned INTPTR *)1)");
1152 output.println("};");
1154 output.println("int hasflags[]={");
1155 for(int i=0; i<state.numClasses(); i++) {
1156 ClassDescriptor cn=cdarray[i];
1158 output.println(", ");
1160 if ((cn != null) && (cn.hasFlags()))
1165 output.println("};");
1169 /** Print out table to give us supertypes */
1170 protected void generateSuperTypeTable(PrintWriter output) {
1171 for(int i=0; i<state.numClasses(); i++) {
1172 ClassDescriptor cn=cdarray[i];
1176 output.print("int supertypes" + cn.getSafeSymbol() + "[] = {");
1177 boolean ncomma = false;
1179 if((cn != null) && (cn.getSuperDesc() != null)) {
1182 Iterator it_sifs = cn != null? cn.getSuperInterfaces() : null;
1183 while(it_sifs != null && it_sifs.hasNext()) {
1189 if ((cn != null) && (cn.getSuperDesc()!=null)) {
1193 ClassDescriptor cdsuper=cn.getSuperDesc();
1194 output.print(cdsuper.getId());
1196 it_sifs = cn != null? cn.getSuperInterfaces() : null;
1197 while(it_sifs != null && it_sifs.hasNext()) {
1201 output.print(((ClassDescriptor)it_sifs.next()).getId());
1204 output.println("};");
1206 output.println("int* supertypes[]={");
1207 boolean needcomma=false;
1208 for(int i=0; i<state.numClasses(); i++) {
1209 ClassDescriptor cn=cdarray[i];
1211 output.println(",");
1214 output.print("supertypes" + cn.getSafeSymbol());
1219 output.println("};");
1222 /** Force consistent field ordering between inherited classes. */
1224 protected void printClassStruct(ClassDescriptor cn, PrintWriter classdefout, PrintWriter globaldefout, PrintWriter globaldefprimout) {
1226 ClassDescriptor sp=cn.getSuperDesc();
1228 printClassStruct(sp, classdefout, /*globaldefout*/ null, null);
1230 SymbolTable sitbl = cn.getSuperInterfaceTable();
1231 Iterator it_sifs = sitbl.getDescriptorsIterator();
1232 while(it_sifs.hasNext()) {
1233 ClassDescriptor si = (ClassDescriptor)it_sifs.next();
1234 printClassStruct(si, classdefout, /*globaldefout*/ null, null);
1237 if (!fieldorder.containsKey(cn)) {
1238 Vector fields=new Vector();
1239 fieldorder.put(cn,fields);
1241 Vector fieldvec=cn.getFieldVec();
1242 for(int i=0; i<fieldvec.size(); i++) {
1243 FieldDescriptor fd=(FieldDescriptor)fieldvec.get(i);
1244 if((sp != null) && sp.getFieldTable().contains(fd.getSymbol())) {
1247 it_sifs = sitbl.getDescriptorsIterator();
1248 boolean hasprinted = false;
1249 while(it_sifs.hasNext()) {
1250 ClassDescriptor si = (ClassDescriptor)it_sifs.next();
1251 if(si.getFieldTable().contains(fd.getSymbol())) {
1257 // this field has been defined in the super class
1264 //Vector fields=(Vector)fieldorder.get(cn);
1266 Vector fields = cn.getFieldVec();
1268 for(int i=0; i<fields.size(); i++) {
1269 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
1270 String fstring = fd.getSafeSymbol();
1271 if(printedfieldstbl.containsKey(fstring)) {
1272 printedfieldstbl.put(fstring, cn);
1275 printedfieldstbl.put(fstring, cn);
1277 if (fd.getType().isClass()
1278 && fd.getType().getClassDesc().isEnum()) {
1279 classdefout.println(" int " + fd.getSafeSymbol() + ";");
1280 } else if (fd.getType().isClass()||fd.getType().isArray()) {
1281 if (fd.isStatic()) {
1282 // TODO add version for normal Java later
1284 if(globaldefout != null) {
1285 if(fd.isVolatile()) {
1286 globaldefout.println(" volatile struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1288 globaldefout.println(" struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1291 } else if (fd.isVolatile()) {
1293 classdefout.println(" volatile struct "+fd.getType().getSafeSymbol()+ " * "+fd.getSafeSymbol()+";");
1295 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
1297 } else if (fd.isStatic()) {
1298 // TODO add version for normal Java later
1300 if(globaldefout != null) {
1301 if(fd.isVolatile()) {
1302 globaldefprimout.println(" volatile "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1304 globaldefprimout.println(" "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1307 } else if (fd.isVolatile()) {
1309 if(globaldefout != null) {
1310 classdefout.println(" volatile "+fd.getType().getSafeSymbol()+ " "+fd.getSafeSymbol()+";");
1313 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
1318 /* Map flags to integers consistently between inherited
1321 protected void mapFlags(ClassDescriptor cn) {
1322 ClassDescriptor sp=cn.getSuperDesc();
1326 if (!flagorder.containsKey(cn)) {
1327 Hashtable flags=new Hashtable();
1328 flagorder.put(cn,flags);
1330 Hashtable superflags=(Hashtable)flagorder.get(sp);
1331 Iterator superflagit=superflags.keySet().iterator();
1332 while(superflagit.hasNext()) {
1333 FlagDescriptor fd=(FlagDescriptor)superflagit.next();
1334 Integer number=(Integer)superflags.get(fd);
1335 flags.put(fd, number);
1336 if ((number.intValue()+1)>max)
1337 max=number.intValue()+1;
1341 Iterator flagit=cn.getFlags();
1342 while(flagit.hasNext()) {
1343 FlagDescriptor fd=(FlagDescriptor)flagit.next();
1344 if (sp==null||!sp.getFlagTable().contains(fd.getSymbol()))
1345 flags.put(fd, new Integer(max++));
1351 /** This function outputs (1) structures that parameters are
1352 * passed in (when PRECISE GC is enabled) and (2) function
1353 * prototypes for the methods */
1355 protected void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout, PrintWriter globaldefout, PrintWriter globaldefprimout) {
1356 /* Output class structure */
1357 classdefout.println("struct "+cn.getSafeSymbol()+" {");
1358 classdefout.println(" int type;");
1361 additionalClassObjectFields(classdefout);
1364 if (state.EVENTMONITOR) {
1365 classdefout.println(" int objuid;");
1368 classdefout.println(" pthread_t tid;");
1369 classdefout.println(" void * lockentry;");
1370 classdefout.println(" int lockcount;");
1372 classdefout.println(" int mutex;");
1373 classdefout.println(" int objlock;");
1374 if(state.MULTICOREGC) {
1375 classdefout.println(" int marked;");
1378 classdefout.println(" int flag;");
1379 if((!state.MULTICORE) || (cn.getSymbol().equals("TagDescriptor"))) {
1380 classdefout.println(" void * flagptr;");
1381 } else if (state.MULTICORE) {
1382 classdefout.println(" int version;");
1383 classdefout.println(" int * lock;"); // lock entry for this obj
1384 classdefout.println(" int mutex;");
1385 classdefout.println(" int lockcount;");
1386 if(state.MULTICOREGC) {
1387 classdefout.println(" int marked;");
1390 if (state.OPTIONAL) {
1391 classdefout.println(" int numfses;");
1392 classdefout.println(" int * fses;");
1395 printClassStruct(cn, classdefout, globaldefout, globaldefprimout);
1396 printedfieldstbl.clear(); // = new Hashtable<String, ClassDescriptor>();
1397 classdefout.println("};\n");
1398 generateCallStructsMethods(cn, output, headersout);
1402 protected void generateCallStructsMethods(ClassDescriptor cn, PrintWriter output, PrintWriter headersout) {
1403 for(Iterator methodit=cn.getMethods(); methodit.hasNext(); ) {
1404 MethodDescriptor md=(MethodDescriptor)methodit.next();
1405 generateMethod(cn, md, headersout, output);
1409 protected void generateMethodParam(ClassDescriptor cn, MethodDescriptor md, PrintWriter output) {
1410 /* Output parameter structure */
1411 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1412 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1413 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
1414 output.println(" int size;");
1415 output.println(" void * next;");
1416 for(int i=0; i<objectparams.numPointers(); i++) {
1417 TempDescriptor temp=objectparams.getPointer(i);
1418 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1419 output.println(" int " + temp.getSafeSymbol() + ";");
1421 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1424 output.println("};\n");
1428 protected void generateMethod(ClassDescriptor cn, MethodDescriptor md, PrintWriter headersout, PrintWriter output) {
1429 FlatMethod fm=state.getMethodFlat(md);
1430 generateTempStructs(fm);
1432 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
1433 TempObject objecttemps=(TempObject) tempstable.get(md);
1435 generateMethodParam(cn, md, output);
1437 /* Output temp structure */
1438 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1439 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
1440 output.println(" int size;");
1441 output.println(" void * next;");
1442 for(int i=0; i<objecttemps.numPointers(); i++) {
1443 TempDescriptor temp=objecttemps.getPointer(i);
1444 if (temp.getType().isNull())
1445 output.println(" void * "+temp.getSafeSymbol()+";");
1447 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1449 output.println("};\n");
1452 /********* Output method declaration ***********/
1453 headersout.println("#define D"+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+" 1");
1454 /* First the return type */
1455 if (md.getReturnType()!=null) {
1456 if(md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
1457 headersout.println(" int ");
1458 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
1459 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
1461 headersout.print(md.getReturnType().getSafeSymbol()+" ");
1463 //catch the constructor case
1464 headersout.print("void ");
1466 /* Next the method name */
1467 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
1468 boolean printcomma=false;
1469 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1470 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
1474 /* Output parameter list*/
1475 for(int i=0; i<objectparams.numPrimitives(); i++) {
1476 TempDescriptor temp=objectparams.getPrimitive(i);
1478 headersout.print(", ");
1480 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
1481 headersout.print("int " + temp.getSafeSymbol());
1482 } else if (temp.getType().isClass()||temp.getType().isArray())
1483 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
1485 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
1487 headersout.println(");\n");
1491 /** This function outputs (1) structures that parameters are
1492 * passed in (when PRECISE GC is enabled) and (2) function
1493 * prototypes for the tasks */
1495 protected void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
1496 /* Cycle through tasks */
1497 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
1499 while(taskit.hasNext()) {
1500 /* Classify parameters */
1501 TaskDescriptor task=(TaskDescriptor)taskit.next();
1502 FlatMethod fm=state.getMethodFlat(task);
1503 generateTempStructs(fm);
1505 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
1506 TempObject objecttemps=(TempObject) tempstable.get(task);
1508 /* Output parameter structure */
1509 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1510 output.println("struct "+task.getSafeSymbol()+"_params {");
1511 output.println(" int size;");
1512 output.println(" void * next;");
1513 for(int i=0; i<objectparams.numPointers(); i++) {
1514 TempDescriptor temp=objectparams.getPointer(i);
1515 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1518 output.println("};\n");
1519 if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
1520 maxtaskparams=objectparams.numPointers()+fm.numTags();
1524 /* Output temp structure */
1525 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1526 output.println("struct "+task.getSafeSymbol()+"_locals {");
1527 output.println(" int size;");
1528 output.println(" void * next;");
1529 for(int i=0; i<objecttemps.numPointers(); i++) {
1530 TempDescriptor temp=objecttemps.getPointer(i);
1531 if (temp.getType().isNull())
1532 output.println(" void * "+temp.getSafeSymbol()+";");
1533 else if(temp.getType().isTag())
1534 output.println(" struct "+
1535 (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1537 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
1539 output.println("};\n");
1542 /* Output task declaration */
1543 headersout.print("void " + task.getSafeSymbol()+"(");
1545 boolean printcomma=false;
1546 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1547 headersout.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
1549 headersout.print("void * parameterarray[]");
1550 headersout.println(");\n");
1554 protected void generateFlatMethod(FlatMethod fm, PrintWriter output) {
1555 if (State.PRINTFLAT)
1556 System.out.println(fm.printMethod());
1557 MethodDescriptor md=fm.getMethod();
1558 TaskDescriptor task=fm.getTask();
1559 ClassDescriptor cn=md!=null ? md.getClassDesc() : null;
1560 ParamsObject objectparams=(ParamsObject)paramstable.get(md!=null ? md : task);
1561 generateHeader(fm, md!=null ? md : task,output);
1562 TempObject objecttemp=(TempObject) tempstable.get(md!=null ? md : task);
1564 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
1566 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+"={");
1568 output.print(" struct "+task.getSafeSymbol()+"_locals "+localsprefix+"={");
1569 output.print(objecttemp.numPointers()+",");
1570 output.print(paramsprefix);
1571 for(int j=0; j<objecttemp.numPointers(); j++)
1572 output.print(", NULL");
1573 output.println("};");
1576 for(int i=0; i<objecttemp.numPrimitives(); i++) {
1577 TempDescriptor td=objecttemp.getPrimitive(i);
1578 TypeDescriptor type=td.getType();
1579 if (type.isNull() && !type.isArray())
1580 output.println(" void * "+td.getSafeSymbol()+";");
1581 else if (type.isClass() && type.getClassDesc().isEnum()) {
1582 output.println(" int " + td.getSafeSymbol() + ";");
1583 } else if (type.isClass()||type.isArray())
1584 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
1586 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
1589 additionalCodeAtTopFlatMethodBody(output, fm);
1591 /* Check to see if we need to do a GC if this is a
1592 * multi-threaded program...*/
1594 if (((state.OOOJAVA||state.THREAD)&&GENERATEPRECISEGC)
1595 || this.state.MULTICOREGC) {
1596 //Don't bother if we aren't in recursive methods...The loops case will catch it
1597 if (callgraph.getAllMethods(md).contains(md)) {
1598 if (this.state.MULTICOREGC) {
1599 output.println("if(gcflag) gc("+localsprefixaddr+");");
1601 output.println("if (unlikely(needtocollect)) checkcollect("+localsprefixaddr+");");
1606 if(fm.getMethod().isStaticBlock()) {
1607 // a static block, check if it has been executed
1608 output.println(" if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag != 0) {");
1609 output.println(" return;");
1610 output.println(" }");
1614 generateCode(fm.getNext(0), fm, null, output);
1616 output.println("}\n\n");
1619 protected void generateCode(FlatNode first,
1621 Set<FlatNode> stopset,
1622 PrintWriter output) {
1624 /* Assign labels to FlatNode's if necessary.*/
1626 Hashtable<FlatNode, Integer> nodetolabel;
1628 nodetolabel=assignLabels(first, stopset);
1630 Set<FlatNode> storeset=null;
1631 HashSet<FlatNode> genset=null;
1632 HashSet<FlatNode> refset=null;
1633 Set<FlatNode> unionset=null;
1635 /* Do the actual code generation */
1636 FlatNode current_node=null;
1637 HashSet tovisit=new HashSet();
1638 HashSet visited=new HashSet();
1640 while(current_node!=null||!tovisit.isEmpty()) {
1641 if (current_node==null) {
1642 current_node=(FlatNode)tovisit.iterator().next();
1643 tovisit.remove(current_node);
1644 } else if (tovisit.contains(current_node)) {
1645 tovisit.remove(current_node);
1647 visited.add(current_node);
1648 if (nodetolabel.containsKey(current_node)) {
1649 output.println("L"+nodetolabel.get(current_node)+":");
1651 if (state.INSTRUCTIONFAILURE) {
1653 output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
1655 output.println("if ((--instructioncount)==0) injectinstructionfailure();");
1657 if (current_node.numNext()==0||stopset!=null&&stopset.contains(current_node)) {
1659 generateFlatNode(fm, current_node, output);
1661 if (state.OOOJAVA && stopset!=null) {
1662 assert first.getPrev(0) instanceof FlatSESEEnterNode;
1663 assert current_node instanceof FlatSESEExitNode;
1664 FlatSESEEnterNode fsen = (FlatSESEEnterNode) first.getPrev(0);
1665 FlatSESEExitNode fsxn = (FlatSESEExitNode) current_node;
1666 assert fsen.getFlatExit().equals(fsxn);
1667 assert fsxn.getFlatEnter().equals(fsen);
1669 if (current_node.kind()!=FKind.FlatReturnNode) {
1670 if((fm.getMethod() != null) && (fm.getMethod().isStaticBlock())) {
1671 // a static block, check if it has been executed
1672 output.println(" global_defsprim_p->" + fm.getMethod().getClassDesc().getSafeSymbol()+"static_block_exe_flag = 1;");
1675 output.println(" return;");
1678 } else if(current_node.numNext()==1) {
1680 if (state.OOOJAVA &&
1681 current_node.kind()==FKind.FlatSESEEnterNode) {
1682 FlatSESEEnterNode fsen = (FlatSESEEnterNode)current_node;
1683 generateFlatNode(fm, current_node, output);
1684 nextnode=fsen.getFlatExit().getNext(0);
1687 generateFlatNode(fm, current_node, output);
1688 nextnode=current_node.getNext(0);
1690 if (visited.contains(nextnode)) {
1691 output.println("goto L"+nodetolabel.get(nextnode)+";");
1694 current_node=nextnode;
1695 } else if (current_node.numNext()==2) {
1698 generateFlatCondBranch(fm, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
1699 if (!visited.contains(current_node.getNext(1)))
1700 tovisit.add(current_node.getNext(1));
1701 if (visited.contains(current_node.getNext(0))) {
1702 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
1705 current_node=current_node.getNext(0);
1706 } else throw new Error();
1710 protected Hashtable<FlatNode, Integer> assignLabels(FlatNode first, Set<FlatNode> lastset) {
1711 HashSet tovisit=new HashSet();
1712 HashSet visited=new HashSet();
1714 Hashtable<FlatNode, Integer> nodetolabel=new Hashtable<FlatNode, Integer>();
1717 /*Assign labels first. A node needs a label if the previous
1718 * node has two exits or this node is a join point. */
1720 while(!tovisit.isEmpty()) {
1721 FlatNode fn=(FlatNode)tovisit.iterator().next();
1726 if(lastset!=null&&lastset.contains(fn)) {
1727 // if last is not null and matches, don't go
1728 // any further for assigning labels
1732 for(int i=0; i<fn.numNext(); i++) {
1733 FlatNode nn=fn.getNext(i);
1736 //1) Edge >1 of node
1737 nodetolabel.put(nn,new Integer(labelindex++));
1739 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
1743 nodetolabel.put(nn,new Integer(labelindex++));
1750 /** Generate text string that corresponds to the TempDescriptor td. */
1751 protected String generateTemp(FlatMethod fm, TempDescriptor td) {
1752 MethodDescriptor md=fm.getMethod();
1753 TaskDescriptor task=fm.getTask();
1754 TempObject objecttemps=(TempObject) tempstable.get(md!=null ? md : task);
1756 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1757 return td.getSafeSymbol();
1760 if (objecttemps.isLocalPtr(td)) {
1761 return localsprefixderef+td.getSafeSymbol();
1764 if (objecttemps.isParamPtr(td)) {
1765 return paramsprefix+"->"+td.getSafeSymbol();
1773 protected void generateFlatNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
1774 additionalCodePreNode(fm, fn, output);
1778 case FKind.FlatAtomicEnterNode:
1779 generateFlatAtomicEnterNode(fm, (FlatAtomicEnterNode) fn, output);
1782 case FKind.FlatAtomicExitNode:
1783 generateFlatAtomicExitNode(fm, (FlatAtomicExitNode) fn, output);
1786 case FKind.FlatInstanceOfNode:
1787 generateFlatInstanceOfNode(fm, (FlatInstanceOfNode)fn, output);
1790 case FKind.FlatSESEEnterNode:
1791 generateFlatSESEEnterNode(fm, (FlatSESEEnterNode)fn, output);
1794 case FKind.FlatSESEExitNode:
1795 generateFlatSESEExitNode(fm, (FlatSESEExitNode)fn, output);
1798 case FKind.FlatWriteDynamicVarNode:
1799 generateFlatWriteDynamicVarNode(fm, (FlatWriteDynamicVarNode)fn, output);
1802 case FKind.FlatGlobalConvNode:
1803 generateFlatGlobalConvNode(fm, (FlatGlobalConvNode) fn, output);
1806 case FKind.FlatTagDeclaration:
1807 generateFlatTagDeclaration(fm, (FlatTagDeclaration) fn,output);
1810 case FKind.FlatCall:
1811 generateFlatCall(fm, (FlatCall) fn,output);
1814 case FKind.FlatFieldNode:
1815 generateFlatFieldNode(fm, (FlatFieldNode) fn,output);
1818 case FKind.FlatElementNode:
1819 generateFlatElementNode(fm, (FlatElementNode) fn,output);
1822 case FKind.FlatSetElementNode:
1823 generateFlatSetElementNode(fm, (FlatSetElementNode) fn,output);
1826 case FKind.FlatSetFieldNode:
1827 generateFlatSetFieldNode(fm, (FlatSetFieldNode) fn,output);
1831 generateFlatNew(fm, (FlatNew) fn,output);
1834 case FKind.FlatOpNode:
1835 generateFlatOpNode(fm, (FlatOpNode) fn,output);
1838 case FKind.FlatCastNode:
1839 generateFlatCastNode(fm, (FlatCastNode) fn,output);
1842 case FKind.FlatLiteralNode:
1843 generateFlatLiteralNode(fm, (FlatLiteralNode) fn,output);
1846 case FKind.FlatReturnNode:
1847 generateFlatReturnNode(fm, (FlatReturnNode) fn,output);
1851 output.println("/* nop */");
1854 case FKind.FlatGenReachNode:
1855 // this node is just for generating a reach graph
1856 // in disjointness analysis at a particular program point
1859 case FKind.FlatExit:
1860 output.println("/* exit */");
1863 case FKind.FlatBackEdge:
1864 generateFlatBackEdge(fm, (FlatBackEdge)fn, output);
1867 case FKind.FlatCheckNode:
1868 generateFlatCheckNode(fm, (FlatCheckNode) fn, output);
1871 case FKind.FlatFlagActionNode:
1872 generateFlatFlagActionNode(fm, (FlatFlagActionNode) fn, output);
1875 case FKind.FlatPrefetchNode:
1876 generateFlatPrefetchNode(fm, (FlatPrefetchNode) fn, output);
1879 case FKind.FlatOffsetNode:
1880 generateFlatOffsetNode(fm, (FlatOffsetNode)fn, output);
1887 additionalCodePostNode(fm, fn, output);
1890 public void generateFlatBackEdge(FlatMethod fm, FlatBackEdge fn, PrintWriter output) {
1891 if (((state.OOOJAVA||state.THREAD)&&GENERATEPRECISEGC)
1892 || (this.state.MULTICOREGC)) {
1893 if(this.state.MULTICOREGC) {
1894 output.println("if (gcflag) gc("+localsprefixaddr+");");
1896 output.println("if (unlikely(needtocollect)) checkcollect("+localsprefixaddr+");");
1899 output.println("/* nop */");
1902 public void generateFlatOffsetNode(FlatMethod fm, FlatOffsetNode fofn, PrintWriter output) {
1903 output.println("/* FlatOffsetNode */");
1904 FieldDescriptor fd=fofn.getField();
1905 if(!fd.isStatic() && !fd.isVolatile()) {
1906 output.println(generateTemp(fm, fofn.getDst())+ " = (short)(int) (&((struct "+fofn.getClassType().getSafeSymbol() +" *)0)->"+
1907 fd.getSafeSymbol()+");");
1909 output.println("/* offset */");
1912 public void generateFlatPrefetchNode(FlatMethod fm, FlatPrefetchNode fpn, PrintWriter output) {
1915 public void generateFlatGlobalConvNode(FlatMethod fm, FlatGlobalConvNode fgcn, PrintWriter output) {
1918 public void generateFlatInstanceOfNode(FlatMethod fm, FlatInstanceOfNode fion, PrintWriter output) {
1920 if (fion.getType().isArray()) {
1921 type=state.getArrayNumber(fion.getType())+state.numClasses();
1923 type=fion.getType().getClassDesc().getId();
1926 if (fion.getType().getSymbol().equals(TypeUtil.ObjectClass))
1927 output.println(generateTemp(fm, fion.getDst())+"=1;");
1929 output.println(generateTemp(fm, fion.getDst())+"=instanceof("+generateTemp(fm,fion.getSrc())+","+type+");");
1932 public void generateFlatAtomicEnterNode(FlatMethod fm, FlatAtomicEnterNode faen, PrintWriter output) {
1935 public void generateFlatAtomicExitNode(FlatMethod fm, FlatAtomicExitNode faen, PrintWriter output) {
1938 public void generateFlatSESEEnterNode(FlatMethod fm,
1939 FlatSESEEnterNode fsen,
1940 PrintWriter output) {
1941 // if OOOJAVA flag is off, okay that SESE nodes are in IR graph,
1942 // just skip over them and code generates exactly the same
1945 public void generateFlatSESEExitNode(FlatMethod fm,
1946 FlatSESEExitNode fsexn,
1947 PrintWriter output) {
1948 // if OOOJAVA flag is off, okay that SESE nodes are in IR graph,
1949 // just skip over them and code generates exactly the same
1952 public void generateFlatWriteDynamicVarNode(FlatMethod fm,
1953 FlatWriteDynamicVarNode fwdvn,
1954 PrintWriter output) {
1958 protected void generateFlatCheckNode(FlatMethod fm, FlatCheckNode fcn, PrintWriter output) {
1959 if (state.CONSCHECK) {
1960 String specname=fcn.getSpec();
1961 String varname="repairstate___";
1962 output.println("{");
1963 output.println("struct "+specname+"_state * "+varname+"=allocate"+specname+"_state();");
1965 TempDescriptor[] temps=fcn.getTemps();
1966 String[] vars=fcn.getVars();
1967 for(int i=0; i<temps.length; i++) {
1968 output.println(varname+"->"+vars[i]+"=(unsigned int)"+generateTemp(fm, temps[i])+";");
1971 output.println("if (doanalysis"+specname+"("+varname+")) {");
1972 output.println("free"+specname+"_state("+varname+");");
1973 output.println("} else {");
1974 output.println("/* Bad invariant */");
1975 output.println("free"+specname+"_state("+varname+");");
1976 output.println("abort_task();");
1977 output.println("}");
1978 output.println("}");
1982 protected void generateFlatCall(FlatMethod fm, FlatCall fc, PrintWriter output) {
1983 MethodDescriptor md=fc.getMethod();
1984 ParamsObject objectparams=(ParamsObject)paramstable.get(md);
1985 ClassDescriptor cn=md.getClassDesc();
1987 // if the called method is a static block or a static method or a constructor
1988 // need to check if it can be invoked inside some static block
1989 if((md.isStatic() || md.isStaticBlock() || md.isConstructor()) &&
1990 ((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic()))) {
1991 if(!md.isInvokedByStatic()) {
1992 System.err.println("Error: a method that is invoked inside a static block is not tagged!");
1994 // is a static block or is invoked in some static block
1995 ClassDescriptor cd = fm.getMethod().getClassDesc();
1997 // the same class, do nothing
1998 // TODO may want to invoke static field initialization here
2000 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2001 // need to check if the class' static fields have been initialized and/or
2002 // its static blocks have been executed
2003 output.println("#ifdef MGC_STATIC_INIT_CHECK");
2004 output.println("if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2005 if(cn.getNumStaticBlocks() != 0) {
2006 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2007 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2009 output.println(" global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2011 output.println("}");
2012 output.println("#endif // MGC_STATIC_INIT_CHECK");
2016 if((md.getSymbol().equals("MonitorEnter") || md.getSymbol().equals("MonitorExit")) && fc.getThis().getSymbol().equals("classobj")) {
2017 // call MonitorEnter/MonitorExit on a class obj
2018 output.println(" " + cn.getSafeSymbol()+md.getSafeSymbol()+"_"
2019 +md.getSafeMethodDescriptor() + "((struct ___Object___*)(global_defs_p->"
2020 + fc.getThis().getType().getClassDesc().getSafeSymbol() +"classobj));");
2024 output.println("{");
2025 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2026 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
2027 output.print(objectparams.numPointers());
2028 output.print(", "+localsprefixaddr);
2029 if (md.getThis()!=null) {
2031 output.print("(struct "+md.getThis().getType().getSafeSymbol() +" *)"+ generateTemp(fm,fc.getThis()));
2033 if (fc.getThis()!=null&&md.getThis()==null) {
2034 System.out.println("WARNING!!!!!!!!!!!!");
2035 System.out.println("Source code calls static method "+md+" on an object in "+fm.getMethod()+"!");
2039 for(int i=0; i<fc.numArgs(); i++) {
2040 Descriptor var=md.getParameter(i);
2041 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
2042 if (objectparams.isParamPtr(paramtemp)) {
2043 TempDescriptor targ=fc.getArg(i);
2045 TypeDescriptor td=md.getParamType(i);
2047 output.print("(struct "+(new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol() +" *)"+generateTemp(fm, targ));
2049 output.print("(struct "+md.getParamType(i).getSafeSymbol() +" *)"+generateTemp(fm, targ));
2052 output.println("};");
2057 if (fc.getReturnTemp()!=null)
2058 output.print(generateTemp(fm,fc.getReturnTemp())+"=");
2060 /* Do we need to do virtual dispatch? */
2061 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
2063 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
2067 if (md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
2068 output.print("int ");
2069 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
2070 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2072 output.print(md.getReturnType().getSafeSymbol()+" ");
2073 output.print("(*)(");
2075 boolean printcomma=false;
2076 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2077 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
2081 for(int i=0; i<objectparams.numPrimitives(); i++) {
2082 TempDescriptor temp=objectparams.getPrimitive(i);
2086 if (temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
2087 output.print("int ");
2088 } else if (temp.getType().isClass()||temp.getType().isArray())
2089 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
2091 output.print(temp.getType().getSafeSymbol());
2095 output.print("))virtualtable["+generateTemp(fm,fc.getThis())+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
2099 boolean needcomma=false;
2100 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2101 output.print("&__parameterlist__");
2105 if (!GENERATEPRECISEGC && !this.state.MULTICOREGC) {
2106 if (fc.getThis()!=null) {
2107 TypeDescriptor ptd=null;
2108 if(md.getThis() != null) {
2109 ptd = md.getThis().getType();
2111 ptd = fc.getThis().getType();
2115 if(ptd.isClass() && ptd.getClassDesc().isEnum()) {
2117 } else if (ptd.isClass()&&!ptd.isArray())
2118 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
2119 output.print(generateTemp(fm,fc.getThis()));
2124 for(int i=0; i<fc.numArgs(); i++) {
2125 Descriptor var=md.getParameter(i);
2126 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
2127 if (objectparams.isParamPrim(paramtemp)) {
2128 TempDescriptor targ=fc.getArg(i);
2132 TypeDescriptor ptd=md.getParamType(i);
2133 if (ptd.isClass() && ptd.getClassDesc().isEnum()) {
2135 } else if (ptd.isClass()&&!ptd.isArray())
2136 output.print("(struct "+ptd.getSafeSymbol()+" *) ");
2137 output.print(generateTemp(fm, targ));
2141 output.println(");");
2142 output.println(" }");
2145 protected boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
2146 Set subclasses=typeutil.getSubClasses(thiscd);
2147 if (subclasses==null)
2149 for(Iterator classit=subclasses.iterator(); classit.hasNext(); ) {
2150 ClassDescriptor cd=(ClassDescriptor)classit.next();
2151 Set possiblematches=cd.getMethodTable().getSetFromSameScope(md.getSymbol());
2152 for(Iterator matchit=possiblematches.iterator(); matchit.hasNext(); ) {
2153 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
2154 if (md.matches(matchmd))
2161 protected void generateFlatFieldNode(FlatMethod fm, FlatFieldNode ffn, PrintWriter output) {
2162 if(ffn.getField().isStatic() || ffn.getField().isVolatile()) {
2164 if((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic())) {
2165 // is a static block or is invoked in some static block
2166 ClassDescriptor cd = fm.getMethod().getClassDesc();
2167 ClassDescriptor cn = ffn.getSrc().getType().getClassDesc();
2169 // the same class, do nothing
2170 // TODO may want to invoke static field initialization here
2172 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2173 // need to check if the class' static fields have been initialized and/or
2174 // its static blocks have been executed
2175 output.println("#ifdef MGC_STATIC_INIT_CHECK");
2176 output.println("if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2177 if(cn.getNumStaticBlocks() != 0) {
2178 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2179 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2181 output.println(" global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2183 output.println("}");
2184 output.println("#endif // MGC_STATIC_INIT_CHECK");
2188 // redirect to the global_defs_p structure
2189 if((ffn.getField().isStatic()) || (ffn.getField().isVolatile()) || (ffn.getSrc().getType().isClassNameRef())) {
2190 // reference to the static field with Class name
2191 if (ffn.getField().getType().isPtr())
2192 output.println(generateTemp(fm, ffn.getDst())+"=global_defs_p->"+ffn.getField().getSafeSymbol()+";");
2194 output.println(generateTemp(fm, ffn.getDst())+"=global_defsprim_p->"+ffn.getField().getSafeSymbol()+";");
2196 output.println(generateTemp(fm, ffn.getDst())+"=*"+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
2198 } else if (ffn.getField().isEnum()) {
2199 // an Enum value, directly replace the field access as int
2200 output.println(generateTemp(fm, ffn.getDst()) + "=" + ffn.getField().enumValue() + ";");
2202 output.println(generateTemp(fm, ffn.getDst())+"="+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
2207 protected void generateFlatSetFieldNode(FlatMethod fm, FlatSetFieldNode fsfn, PrintWriter output) {
2208 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
2209 throw new Error("Can't set array length");
2210 if (state.FASTCHECK) {
2211 String dst=generateTemp(fm, fsfn.getDst());
2212 output.println("if(!"+dst+"->"+localcopystr+") {");
2213 /* Link object into list */
2214 if (GENERATEPRECISEGC || this.state.MULTICOREGC)
2215 output.println("COPY_OBJ((struct garbagelist *)"+localsprefixaddr+",(struct ___Object___ *)"+dst+");");
2217 output.println("COPY_OBJ("+dst+");");
2218 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2219 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2220 output.println("}");
2223 if(fsfn.getField().isStatic()) {
2225 if((fm.getMethod().isStaticBlock()) || (fm.getMethod().isInvokedByStatic())) {
2226 // is a static block or is invoked in some static block
2227 ClassDescriptor cd = fm.getMethod().getClassDesc();
2228 ClassDescriptor cn = fsfn.getDst().getType().getClassDesc();
2230 // the same class, do nothing
2231 // TODO may want to invoke static field initialization here
2233 if((cn.getNumStaticFields() != 0) || (cn.getNumStaticBlocks() != 0)) {
2234 // need to check if the class' static fields have been initialized and/or
2235 // its static blocks have been executed
2236 output.println("#ifdef MGC_STATIC_INIT_CHECK");
2237 output.println("if(global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag == 0) {");
2238 if(cn.getNumStaticFields() != 0) {
2239 // TODO add static field initialization here
2241 if(cn.getNumStaticBlocks() != 0) {
2242 MethodDescriptor t_md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
2243 output.println(" "+cn.getSafeSymbol()+t_md.getSafeSymbol()+"_"+t_md.getSafeMethodDescriptor()+"();");
2245 output.println(" global_defsprim_p->" + cn.getSafeSymbol()+"static_block_exe_flag = 1;");
2247 output.println("}");
2248 output.println("#endif // MGC_STATIC_INIT_CHECK");
2252 // redirect to the global_defs_p structure
2253 if((fsfn.getDst().getType().isClassNameRef()) || (fsfn.getField().isStatic()) || (fsfn.getField().isVolatile())) {
2254 // reference to the static field with Class name
2255 if (fsfn.getField().getType().isPtr())
2256 output.println("global_defs_p->" +
2257 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2259 output.println("global_defsprim_p->" +
2260 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2262 output.println("*"+generateTemp(fm, fsfn.getDst())+"->"+
2263 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2266 output.println(generateTemp(fm, fsfn.getDst())+"->"+
2267 fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
2272 protected void generateFlatElementNode(FlatMethod fm, FlatElementNode fen, PrintWriter output) {
2273 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
2276 if (elementtype.isClass() && elementtype.getClassDesc().isEnum()) {
2278 } else if (elementtype.isArray()||elementtype.isClass())
2281 type=elementtype.getSafeSymbol()+" ";
2283 if (this.state.ARRAYBOUNDARYCHECK && fen.needsBoundsCheck()) {
2284 output.println("if (unlikely(((unsigned int)"+generateTemp(fm, fen.getIndex())+") >= "+generateTemp(fm,fen.getSrc()) + "->___length___))");
2285 output.println("failedboundschk();");
2287 output.println(generateTemp(fm, fen.getDst())+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc())+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex())+"];");
2290 protected void generateFlatSetElementNode(FlatMethod fm, FlatSetElementNode fsen, PrintWriter output) {
2291 //TODO: need dynamic check to make sure this assignment is actually legal
2292 //Because Object[] could actually be something more specific...ie. Integer[]
2294 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
2297 if (elementtype.isClass() && elementtype.getClassDesc().isEnum()) {
2299 } else if (elementtype.isArray()||elementtype.isClass() || (elementtype.isNull()))
2302 type=elementtype.getSafeSymbol()+" ";
2304 if (this.state.ARRAYBOUNDARYCHECK && fsen.needsBoundsCheck()) {
2305 output.println("if (unlikely(((unsigned int)"+generateTemp(fm, fsen.getIndex())+") >= "+generateTemp(fm,fsen.getDst()) + "->___length___))");
2306 output.println("failedboundschk();");
2308 if (state.FASTCHECK) {
2309 String dst=generateTemp(fm, fsen.getDst());
2310 output.println("if(!"+dst+"->"+localcopystr+") {");
2311 /* Link object into list */
2312 if (GENERATEPRECISEGC || this.state.MULTICOREGC)
2313 output.println("COPY_OBJ((struct garbagelist *)"+localsprefixaddr+",(struct ___Object___ *)"+dst+");");
2315 output.println("COPY_OBJ("+dst+");");
2316 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2317 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2318 output.println("}");
2320 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst())+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex())+"]="+generateTemp(fm,fsen.getSrc())+";");
2324 protected void generateFlatNew(FlatMethod fm, FlatNew fn, PrintWriter output) {
2325 if (fn.getType().isArray()) {
2326 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
2327 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2328 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+localsprefixaddr+", "+arrayid+", "+generateTemp(fm, fn.getSize())+");");
2330 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize())+");");
2333 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2334 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+localsprefixaddr+", "+fn.getType().getClassDesc().getId()+");");
2336 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
2339 if (state.FASTCHECK) {
2340 String dst=generateTemp(fm,fn.getDst());
2341 output.println(dst+"->___localcopy___=(struct ___Object___*)1;");
2342 output.println(dst+"->"+nextobjstr+"="+fcrevert+";");
2343 output.println(fcrevert+"=(struct ___Object___ *)"+dst+";");
2347 protected void generateFlatTagDeclaration(FlatMethod fm, FlatTagDeclaration fn, PrintWriter output) {
2348 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2349 output.println(generateTemp(fm,fn.getDst())+"=allocate_tag("+localsprefixaddr+", "+state.getTagId(fn.getType())+");");
2351 output.println(generateTemp(fm,fn.getDst())+"=allocate_tag("+state.getTagId(fn.getType())+");");
2355 protected void generateFlatOpNode(FlatMethod fm, FlatOpNode fon, PrintWriter output) {
2356 if (fon.getRight()!=null) {
2357 if (fon.getOp().getOp()==Operation.URIGHTSHIFT) {
2358 if (fon.getLeft().getType().isLong())
2359 output.println(generateTemp(fm, fon.getDest())+" = ((unsigned long long)"+generateTemp(fm, fon.getLeft())+")>>"+generateTemp(fm,fon.getRight())+";");
2361 output.println(generateTemp(fm, fon.getDest())+" = ((unsigned int)"+generateTemp(fm, fon.getLeft())+")>>"+generateTemp(fm,fon.getRight())+";");
2364 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+fon.getOp().toString()+generateTemp(fm,fon.getRight())+";");
2365 } else if (fon.getOp().getOp()==Operation.ASSIGN)
2366 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
2367 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
2368 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
2369 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
2370 output.println(generateTemp(fm, fon.getDest())+" = -"+generateTemp(fm, fon.getLeft())+";");
2371 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
2372 output.println(generateTemp(fm, fon.getDest())+" = !"+generateTemp(fm, fon.getLeft())+";");
2373 else if (fon.getOp().getOp()==Operation.COMP)
2374 output.println(generateTemp(fm, fon.getDest())+" = ~"+generateTemp(fm, fon.getLeft())+";");
2375 else if (fon.getOp().getOp()==Operation.ISAVAILABLE) {
2376 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+"->fses==NULL;");
2378 output.println(generateTemp(fm, fon.getDest())+fon.getOp().toString()+generateTemp(fm, fon.getLeft())+";");
2381 protected void generateFlatCastNode(FlatMethod fm, FlatCastNode fcn, PrintWriter output) {
2382 /* TODO: Do type check here */
2383 if (fcn.getType().isArray()) {
2384 output.println(generateTemp(fm,fcn.getDst())+"=(struct ArrayObject *)"+generateTemp(fm,fcn.getSrc())+";");
2385 } else if (fcn.getType().isClass() && fcn.getType().getClassDesc().isEnum()) {
2386 output.println(generateTemp(fm,fcn.getDst())+"=(int)"+generateTemp(fm,fcn.getSrc())+";");
2387 } else if (fcn.getType().isClass())
2388 output.println(generateTemp(fm,fcn.getDst())+"=(struct "+fcn.getType().getSafeSymbol()+" *)"+generateTemp(fm,fcn.getSrc())+";");
2390 output.println(generateTemp(fm,fcn.getDst())+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc())+";");
2393 protected void generateFlatLiteralNode(FlatMethod fm, FlatLiteralNode fln, PrintWriter output) {
2394 if (fln.getValue()==null)
2395 output.println(generateTemp(fm, fln.getDst())+"=0;");
2396 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass)) {
2397 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2398 output.println(generateTemp(fm, fln.getDst())+"=NewString("+localsprefixaddr+", \""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2400 output.println(generateTemp(fm, fln.getDst())+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
2402 } else if (fln.getType().isBoolean()) {
2403 if (((Boolean)fln.getValue()).booleanValue())
2404 output.println(generateTemp(fm, fln.getDst())+"=1;");
2406 output.println(generateTemp(fm, fln.getDst())+"=0;");
2407 } else if (fln.getType().isChar()) {
2408 String st=FlatLiteralNode.escapeString(fln.getValue().toString());
2409 output.println(generateTemp(fm, fln.getDst())+"='"+st+"';");
2410 } else if (fln.getType().isLong()) {
2411 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+"LL;");
2413 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+";");
2416 protected void generateFlatReturnNode(FlatMethod fm, FlatReturnNode frn, PrintWriter output) {
2417 if((fm.getMethod() != null) && (fm.getMethod().isStaticBlock())) {
2418 // a static block, check if it has been executed
2419 output.println(" global_defsprim_p->" + fm.getMethod().getClassDesc().getSafeSymbol()+"static_block_exe_flag = 1;");
2423 if (frn.getReturnTemp()!=null) {
2424 if (frn.getReturnTemp().getType().isPtr())
2425 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp())+";");
2427 output.println("return "+generateTemp(fm, frn.getReturnTemp())+";");
2429 output.println("return;");
2433 protected void generateFlatCondBranch(FlatMethod fm, FlatCondBranch fcb, String label, PrintWriter output) {
2434 output.println("if (!"+generateTemp(fm, fcb.getTest())+") goto "+label+";");
2437 /** This method generates header information for the method or
2438 * task referenced by the Descriptor des. */
2439 protected void generateHeader(FlatMethod fm, Descriptor des, PrintWriter output) {
2440 generateHeader(fm, des, output, false);
2443 protected void generateHeader(FlatMethod fm, Descriptor des, PrintWriter output, boolean addSESErecord) {
2445 ParamsObject objectparams=(ParamsObject)paramstable.get(des);
2446 MethodDescriptor md=null;
2447 TaskDescriptor task=null;
2448 if (des instanceof MethodDescriptor)
2449 md=(MethodDescriptor) des;
2451 task=(TaskDescriptor) des;
2453 ClassDescriptor cn=md!=null ? md.getClassDesc() : null;
2455 if (md!=null&&md.getReturnType()!=null) {
2456 if (md.getReturnType().isClass() && md.getReturnType().getClassDesc().isEnum()) {
2457 output.print("int ");
2458 } else if (md.getReturnType().isClass()||md.getReturnType().isArray())
2459 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
2461 output.print(md.getReturnType().getSafeSymbol()+" ");
2463 //catch the constructor case
2464 output.print("void ");
2466 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
2468 output.print(task.getSafeSymbol()+"(");
2470 boolean printcomma=false;
2471 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC)) {
2473 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
2475 output.print("struct "+task.getSafeSymbol()+"_params * "+paramsprefix);
2481 for(int i=0; i<objectparams.numPrimitives(); i++) {
2482 TempDescriptor temp=objectparams.getPrimitive(i);
2486 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
2487 output.print("int " + temp.getSafeSymbol());
2488 } else if (temp.getType().isClass()||temp.getType().isArray())
2489 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
2491 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
2493 output.println(") {");
2494 } else if (!GENERATEPRECISEGC && !this.state.MULTICOREGC) {
2495 /* Imprecise Task */
2496 output.println("void * parameterarray[]) {");
2497 /* Unpack variables */
2498 for(int i=0; i<objectparams.numPrimitives(); i++) {
2499 TempDescriptor temp=objectparams.getPrimitive(i);
2500 if(temp.getType().isClass() && temp.getType().getClassDesc().isEnum()) {
2501 output.print("int " + temp.getSafeSymbol() + "=parameterarray["+i+"];");
2503 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
2506 for(int i=0; i<fm.numTags(); i++) {
2507 TempDescriptor temp=fm.getTag(i);
2508 int offset=i+objectparams.numPrimitives();
2509 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+"=parameterarray["+offset+"];");
2512 if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
2513 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
2514 } else output.println(") {");
2517 public void generateFlatFlagActionNode(FlatMethod fm, FlatFlagActionNode ffan, PrintWriter output) {
2518 output.println("/* FlatFlagActionNode */");
2521 /* Process tag changes */
2522 Relation tagsettable=new Relation();
2523 Relation tagcleartable=new Relation();
2525 Iterator tagsit=ffan.getTempTagPairs();
2526 while (tagsit.hasNext()) {
2527 TempTagPair ttp=(TempTagPair) tagsit.next();
2528 TempDescriptor objtmp=ttp.getTemp();
2529 TagDescriptor tag=ttp.getTag();
2530 TempDescriptor tagtmp=ttp.getTagTemp();
2531 boolean tagstatus=ffan.getTagChange(ttp);
2533 tagsettable.put(objtmp, tagtmp);
2535 tagcleartable.put(objtmp, tagtmp);
2540 Hashtable flagandtable=new Hashtable();
2541 Hashtable flagortable=new Hashtable();
2543 /* Process flag changes */
2544 Iterator flagsit=ffan.getTempFlagPairs();
2545 while(flagsit.hasNext()) {
2546 TempFlagPair tfp=(TempFlagPair)flagsit.next();
2547 TempDescriptor temp=tfp.getTemp();
2548 Hashtable flagtable=(Hashtable)flagorder.get(temp.getType().getClassDesc());
2549 FlagDescriptor flag=tfp.getFlag();
2551 //Newly allocate objects that don't set any flags case
2552 if (flagortable.containsKey(temp)) {
2556 flagortable.put(temp,new Integer(mask));
2558 int flagid=1<<((Integer)flagtable.get(flag)).intValue();
2559 boolean flagstatus=ffan.getFlagChange(tfp);
2562 if (flagortable.containsKey(temp)) {
2563 mask=((Integer)flagortable.get(temp)).intValue();
2566 flagortable.put(temp,new Integer(mask));
2568 int mask=0xFFFFFFFF;
2569 if (flagandtable.containsKey(temp)) {
2570 mask=((Integer)flagandtable.get(temp)).intValue();
2572 mask&=(0xFFFFFFFF^flagid);
2573 flagandtable.put(temp,new Integer(mask));
2579 HashSet flagtagset=new HashSet();
2580 flagtagset.addAll(flagortable.keySet());
2581 flagtagset.addAll(flagandtable.keySet());
2582 flagtagset.addAll(tagsettable.keySet());
2583 flagtagset.addAll(tagcleartable.keySet());
2585 Iterator ftit=flagtagset.iterator();
2586 while(ftit.hasNext()) {
2587 TempDescriptor temp=(TempDescriptor)ftit.next();
2590 Set tagtmps=tagcleartable.get(temp);
2591 if (tagtmps!=null) {
2592 Iterator tagit=tagtmps.iterator();
2593 while(tagit.hasNext()) {
2594 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2595 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
2596 output.println("tagclear("+localsprefixaddr+", (struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
2598 output.println("tagclear((struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
2602 tagtmps=tagsettable.get(temp);
2603 if (tagtmps!=null) {
2604 Iterator tagit=tagtmps.iterator();
2605 while(tagit.hasNext()) {
2606 TempDescriptor tagtmp=(TempDescriptor)tagit.next();
2607 if ((GENERATEPRECISEGC) || (this.state.MULTICOREGC))
2608 output.println("tagset("+localsprefixaddr+", (struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
2610 output.println("tagset((struct ___Object___ *)"+generateTemp(fm, temp)+", "+generateTemp(fm,tagtmp)+");");
2615 int andmask=0xFFFFFFF;
2617 if (flagortable.containsKey(temp))
2618 ormask=((Integer)flagortable.get(temp)).intValue();
2619 if (flagandtable.containsKey(temp))
2620 andmask=((Integer)flagandtable.get(temp)).intValue();
2621 generateFlagOrAnd(ffan, fm, temp, output, ormask, andmask);
2622 generateObjectDistribute(ffan, fm, temp, output);
2626 protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, TempDescriptor temp,
2627 PrintWriter output, int ormask, int andmask) {
2628 if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
2629 output.println("flagorandinit("+generateTemp(fm, temp)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2631 output.println("flagorand("+generateTemp(fm, temp)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
2635 protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, TempDescriptor temp, PrintWriter output) {
2636 output.println("enqueueObject("+generateTemp(fm, temp)+");");
2639 void generateOptionalHeader(PrintWriter headers) {
2642 headers.println("#include \"task.h\"\n\n");
2643 headers.println("#ifndef _OPTIONAL_STRUCT_");
2644 headers.println("#define _OPTIONAL_STRUCT_");
2646 //STRUCT PREDICATEMEMBER
2647 headers.println("struct predicatemember{");
2648 headers.println("int type;");
2649 headers.println("int numdnfterms;");
2650 headers.println("int * flags;");
2651 headers.println("int numtags;");
2652 headers.println("int * tags;\n};\n\n");
2654 //STRUCT OPTIONALTASKDESCRIPTOR
2655 headers.println("struct optionaltaskdescriptor{");
2656 headers.println("struct taskdescriptor * task;");
2657 headers.println("int index;");
2658 headers.println("int numenterflags;");
2659 headers.println("int * enterflags;");
2660 headers.println("int numpredicatemembers;");
2661 headers.println("struct predicatemember ** predicatememberarray;");
2662 headers.println("};\n\n");
2664 //STRUCT TASKFAILURE
2665 headers.println("struct taskfailure {");
2666 headers.println("struct taskdescriptor * task;");
2667 headers.println("int index;");
2668 headers.println("int numoptionaltaskdescriptors;");
2669 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2671 //STRUCT FSANALYSISWRAPPER
2672 headers.println("struct fsanalysiswrapper{");
2673 headers.println("int flags;");
2674 headers.println("int numtags;");
2675 headers.println("int * tags;");
2676 headers.println("int numtaskfailures;");
2677 headers.println("struct taskfailure ** taskfailurearray;");
2678 headers.println("int numoptionaltaskdescriptors;");
2679 headers.println("struct optionaltaskdescriptor ** optionaltaskdescriptorarray;\n};\n\n");
2681 //STRUCT CLASSANALYSISWRAPPER
2682 headers.println("struct classanalysiswrapper{");
2683 headers.println("int type;");
2684 headers.println("int numotd;");
2685 headers.println("struct optionaltaskdescriptor ** otdarray;");
2686 headers.println("int numfsanalysiswrappers;");
2687 headers.println("struct fsanalysiswrapper ** fsanalysiswrapperarray;\n};");
2689 headers.println("extern struct classanalysiswrapper * classanalysiswrapperarray[];");
2691 Iterator taskit=state.getTaskSymbolTable().getDescriptorsIterator();
2692 while(taskit.hasNext()) {
2693 TaskDescriptor td=(TaskDescriptor)taskit.next();
2694 headers.println("extern struct taskdescriptor task_"+td.getSafeSymbol()+";");
2699 //CHECK OVER THIS -- THERE COULD BE SOME ERRORS HERE
2700 int generateOptionalPredicate(Predicate predicate, OptionalTaskDescriptor otd, ClassDescriptor cdtemp, PrintWriter output) {
2701 int predicateindex = 0;
2702 //iterate through the classes concerned by the predicate
2703 Set c_vard = predicate.vardescriptors;
2704 Hashtable<TempDescriptor, Integer> slotnumber=new Hashtable<TempDescriptor, Integer>();
2707 for(Iterator vard_it = c_vard.iterator(); vard_it.hasNext(); ) {
2708 VarDescriptor vard = (VarDescriptor)vard_it.next();
2709 TypeDescriptor typed = vard.getType();
2711 //generate for flags
2712 HashSet fen_hashset = predicate.flags.get(vard.getSymbol());
2713 output.println("int predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2715 if (fen_hashset!=null) {
2716 for (Iterator fen_it = fen_hashset.iterator(); fen_it.hasNext(); ) {
2717 FlagExpressionNode fen = (FlagExpressionNode)fen_it.next();
2719 DNFFlag dflag=fen.getDNF();
2720 numberterms+=dflag.size();
2722 Hashtable flags=(Hashtable)flagorder.get(typed.getClassDesc());
2724 for(int j=0; j<dflag.size(); j++) {
2726 output.println(",");
2727 Vector term=dflag.get(j);
2730 for(int k=0; k<term.size(); k++) {
2731 DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
2732 FlagDescriptor fd=dfa.getFlag();
2733 boolean negated=dfa.getNegated();
2734 int flagid=1<<((Integer)flags.get(fd)).intValue();
2739 output.print("/*andmask*/0x"+Integer.toHexString(andmask)+", /*checkmask*/0x"+Integer.toHexString(checkmask));
2744 output.println("};\n");
2747 TagExpressionList tagel = predicate.tags.get(vard.getSymbol());
2748 output.println("int predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2751 for(int j=0; j<tagel.numTags(); j++) {
2753 output.println(",");
2754 TempDescriptor tmp=tagel.getTemp(j);
2755 if (!slotnumber.containsKey(tmp)) {
2756 Integer slotint=new Integer(current_slot++);
2757 slotnumber.put(tmp,slotint);
2759 int slot=slotnumber.get(tmp).intValue();
2760 output.println("/* slot */"+ slot+", /*tagid*/"+state.getTagId(tmp.getTag()));
2762 numtags = tagel.numTags();
2764 output.println("};");
2766 //store the result into a predicatemember struct
2767 output.println("struct predicatemember predicatemember_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2768 output.println("/*type*/"+typed.getClassDesc().getId()+",");
2769 output.println("/* number of dnf terms */"+numberterms+",");
2770 output.println("predicateflags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2771 output.println("/* number of tag */"+numtags+",");
2772 output.println("predicatetags_"+predicateindex+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2773 output.println("};\n");
2778 //generate an array that stores the entire predicate
2779 output.println("struct predicatemember * predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2780 for( int j = 0; j<predicateindex; j++) {
2781 if( j != predicateindex-1) output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2782 else output.println("&predicatemember_"+j+"_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2784 output.println("};\n");
2785 return predicateindex;
2789 void generateOptionalArrays(PrintWriter output, PrintWriter headers, Hashtable<ClassDescriptor, Hashtable<FlagState, Set<OptionalTaskDescriptor>>> safeexecution, Hashtable optionaltaskdescriptors) {
2790 generateOptionalHeader(headers);
2792 output.println("#include \"optionalstruct.h\"\n\n");
2793 output.println("#include \"stdlib.h\"\n");
2795 HashSet processedcd = new HashSet();
2797 Enumeration e = safeexecution.keys();
2798 while (e.hasMoreElements()) {
2801 ClassDescriptor cdtemp=(ClassDescriptor)e.nextElement();
2802 Hashtable flaginfo=(Hashtable)flagorder.get(cdtemp); //will be used several times
2804 //Generate the struct of optionals
2805 Collection c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2806 numotd = c_otd.size();
2807 if(maxotd<numotd) maxotd = numotd;
2808 if( !c_otd.isEmpty() ) {
2809 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext(); ) {
2810 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2812 //generate the int arrays for the predicate
2813 Predicate predicate = otd.predicate;
2814 int predicateindex = generateOptionalPredicate(predicate, otd, cdtemp, output);
2815 TreeSet<Integer> fsset=new TreeSet<Integer>();
2816 //iterate through possible FSes corresponding to
2817 //the state when entering
2819 for(Iterator fses = otd.enterflagstates.iterator(); fses.hasNext(); ) {
2820 FlagState fs = (FlagState)fses.next();
2822 for(Iterator flags = fs.getFlags(); flags.hasNext(); ) {
2823 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2824 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2827 fsset.add(new Integer(flagid));
2828 //tag information not needed because tag
2829 //changes are not tolerated.
2832 output.println("int enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"[]={");
2833 boolean needcomma=false;
2834 for(Iterator<Integer> it=fsset.iterator(); it.hasNext(); ) {
2837 output.println(it.next());
2840 output.println("};\n");
2843 //generate optionaltaskdescriptor that actually
2844 //includes exit fses, predicate and the task
2846 output.println("struct optionaltaskdescriptor optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+"={");
2847 output.println("&task_"+otd.td.getSafeSymbol()+",");
2848 output.println("/*index*/"+otd.getIndex()+",");
2849 output.println("/*number of enter flags*/"+fsset.size()+",");
2850 output.println("enterflag_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2851 output.println("/*number of members */"+predicateindex+",");
2852 output.println("predicatememberarray_OTD"+otd.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2853 output.println("};\n");
2857 // if there are no optionals, there is no need to build the rest of the struct
2859 output.println("struct optionaltaskdescriptor * otdarray"+cdtemp.getSafeSymbol()+"[]={");
2860 c_otd = ((Hashtable)optionaltaskdescriptors.get(cdtemp)).values();
2861 if( !c_otd.isEmpty() ) {
2862 boolean needcomma=false;
2863 for(Iterator otd_it = c_otd.iterator(); otd_it.hasNext(); ) {
2864 OptionalTaskDescriptor otd = (OptionalTaskDescriptor)otd_it.next();
2866 output.println(",");
2868 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2871 output.println("};\n");
2873 //get all the possible flagstates reachable by an object
2874 Hashtable hashtbtemp = safeexecution.get(cdtemp);
2876 TreeSet fsts=new TreeSet(new FlagComparator(flaginfo));
2877 fsts.addAll(hashtbtemp.keySet());
2878 for(Iterator fsit=fsts.iterator(); fsit.hasNext(); ) {
2879 FlagState fs = (FlagState)fsit.next();
2882 //get the set of OptionalTaskDescriptors corresponding
2883 HashSet<OptionalTaskDescriptor> availabletasks = (HashSet<OptionalTaskDescriptor>)hashtbtemp.get(fs);
2884 //iterate through the OptionalTaskDescriptors and
2885 //store the pointers to the optionals struct (see on
2886 //top) into an array
2888 output.println("struct optionaltaskdescriptor * optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[] = {");
2889 for(Iterator<OptionalTaskDescriptor> mos = ordertd(availabletasks).iterator(); mos.hasNext(); ) {
2890 OptionalTaskDescriptor mm = mos.next();
2892 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol());
2894 output.println("&optionaltaskdescriptor_"+mm.getuid()+"_"+cdtemp.getSafeSymbol()+",");
2897 output.println("};\n");
2899 //process flag information (what the flag after failure is) so we know what optionaltaskdescriptors to choose.
2902 for(Iterator flags = fs.getFlags(); flags.hasNext(); ) {
2903 FlagDescriptor flagd = (FlagDescriptor)flags.next();
2904 int id=1<<((Integer)flaginfo.get(flagd)).intValue();
2908 //process tag information
2911 boolean first = true;
2912 Enumeration tag_enum = fs.getTags();
2913 output.println("int tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2914 while(tag_enum.hasMoreElements()) {
2916 TagDescriptor tagd = (TagDescriptor)tag_enum.nextElement();
2920 output.println(", ");
2921 output.println("/*tagid*/"+state.getTagId(tagd));
2923 output.println("};");
2925 Set<TaskIndex> tiset=sa.getTaskIndex(fs);
2926 for(Iterator<TaskIndex> itti=tiset.iterator(); itti.hasNext(); ) {
2927 TaskIndex ti=itti.next();
2931 Set<OptionalTaskDescriptor> otdset=sa.getOptions(fs, ti);
2933 output.print("struct optionaltaskdescriptor * optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array[] = {");
2934 boolean needcomma=false;
2935 for(Iterator<OptionalTaskDescriptor> otdit=ordertd(otdset).iterator(); otdit.hasNext(); ) {
2936 OptionalTaskDescriptor otd=otdit.next();
2940 output.println("&optionaltaskdescriptor_"+otd.getuid()+"_"+cdtemp.getSafeSymbol());
2942 output.println("};");
2944 output.print("struct taskfailure taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+" = {");
2945 output.print("&task_"+ti.getTask().getSafeSymbol()+", ");
2946 output.print(ti.getIndex()+", ");
2947 output.print(otdset.size()+", ");
2948 output.print("optionaltaskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex()+"_array");
2949 output.println("};");
2952 tiset=sa.getTaskIndex(fs);
2953 boolean needcomma=false;
2955 output.println("struct taskfailure * taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+"[]={");
2956 for(Iterator<TaskIndex> itti=tiset.iterator(); itti.hasNext(); ) {
2957 TaskIndex ti=itti.next();
2958 if (ti.isRuntime()) {
2965 output.print("&taskfailure_FS"+fscounter+"_"+ti.getTask().getSafeSymbol()+"_"+ti.getIndex());
2967 output.println("};\n");
2969 //Store the result in fsanalysiswrapper
2971 output.println("struct fsanalysiswrapper fsanalysiswrapper_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+"={");
2972 output.println("/*flag*/"+flagid+",");
2973 output.println("/* number of tags*/"+tagcounter+",");
2974 output.println("tags_FS"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2975 output.println("/* numtask failures */"+(tiset.size()-runtimeti)+",");
2976 output.println("taskfailurearray"+fscounter+"_"+cdtemp.getSafeSymbol()+",");
2977 output.println("/* number of optionaltaskdescriptors */"+availabletasks.size()+",");
2978 output.println("optionaltaskdescriptorarray_FS"+fscounter+"_"+cdtemp.getSafeSymbol());
2979 output.println("};\n");
2983 //Build the array of fsanalysiswrappers
2984 output.println("struct fsanalysiswrapper * fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"[] = {");
2985 boolean needcomma=false;
2986 for(int i = 0; i<fscounter; i++) {
2987 if (needcomma) output.print(",");
2988 output.println("&fsanalysiswrapper_FS"+(i+1)+"_"+cdtemp.getSafeSymbol());
2991 output.println("};");
2993 //Build the classanalysiswrapper referring to the previous array
2994 output.println("struct classanalysiswrapper classanalysiswrapper_"+cdtemp.getSafeSymbol()+"={");
2995 output.println("/*type*/"+cdtemp.getId()+",");
2996 output.println("/*numotd*/"+numotd+",");
2997 output.println("otdarray"+cdtemp.getSafeSymbol()+",");
2998 output.println("/* number of fsanalysiswrappers */"+fscounter+",");
2999 output.println("fsanalysiswrapperarray_"+cdtemp.getSafeSymbol()+"};\n");
3000 processedcd.add(cdtemp);
3003 //build an array containing every classes for which code has been build
3004 output.println("struct classanalysiswrapper * classanalysiswrapperarray[]={");
3005 for(int i=0; i<state.numClasses(); i++) {
3006 ClassDescriptor cn=cdarray[i];
3009 if ((cn != null) && (processedcd.contains(cn)))
3010 output.print("&classanalysiswrapper_"+cn.getSafeSymbol());
3012 output.print("NULL");
3014 output.println("};");
3016 output.println("#define MAXOTD "+maxotd);
3017 headers.println("#endif");
3020 public List<OptionalTaskDescriptor> ordertd(Set<OptionalTaskDescriptor> otdset) {
3021 Relation r=new Relation();
3022 for(Iterator<OptionalTaskDescriptor>otdit=otdset.iterator(); otdit.hasNext(); ) {
3023 OptionalTaskDescriptor otd=otdit.next();
3024 TaskIndex ti=new TaskIndex(otd.td, otd.getIndex());
3028 LinkedList<OptionalTaskDescriptor> l=new LinkedList<OptionalTaskDescriptor>();
3029 for(Iterator it=r.keySet().iterator(); it.hasNext(); ) {
3030 Set s=r.get(it.next());
3031 for(Iterator it2=s.iterator(); it2.hasNext(); ) {
3032 OptionalTaskDescriptor otd=(OptionalTaskDescriptor)it2.next();
3040 // override these methods in a subclass of BuildCode
3041 // to generate code for additional systems
3042 protected void printExtraArrayFields(PrintWriter outclassdefs) {
3044 protected void outputTransCode(PrintWriter output) {
3046 protected void buildCodeSetup() {
3048 protected void generateSizeArrayExtensions(PrintWriter outclassdefs) {
3050 protected void additionalIncludesMethodsHeader(PrintWriter outmethodheader) {
3052 protected void preCodeGenInitialization() {
3054 protected void postCodeGenCleanUp() {
3056 protected void additionalCodeGen(PrintWriter outmethodheader,
3057 PrintWriter outstructs,
3058 PrintWriter outmethod) {
3060 protected void additionalCodeAtTopOfMain(PrintWriter outmethod) {
3062 protected void additionalCodeAtBottomOfMain(PrintWriter outmethod) {
3064 protected void additionalIncludesMethodsImplementation(PrintWriter outmethod) {
3066 protected void additionalIncludesStructsHeader(PrintWriter outstructs) {
3068 protected void additionalClassObjectFields(PrintWriter outclassdefs) {
3070 protected void additionalCodeAtTopMethodsImplementation(PrintWriter outmethod) {
3072 protected void additionalCodeAtTopFlatMethodBody(PrintWriter output, FlatMethod fm) {
3074 protected void additionalCodePreNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
3076 protected void additionalCodePostNode(FlatMethod fm, FlatNode fn, PrintWriter output) {