1 //===--- llvm/Analysis/DebugInfo.h - Debug Information Helpers --*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines a bunch of datatypes that are useful for creating and
11 // walking debug info in LLVM IR form. They essentially provide wrappers around
12 // the information in the global variables that's needed when constructing the
15 //===----------------------------------------------------------------------===//
17 #ifndef LLVM_DEBUGINFO_H
18 #define LLVM_DEBUGINFO_H
20 #include "llvm/ADT/SmallPtrSet.h"
21 #include "llvm/ADT/SmallVector.h"
22 #include "llvm/ADT/StringRef.h"
23 #include "llvm/Support/Dwarf.h"
43 class DILexicalBlockFile;
48 /// DIDescriptor - A thin wraper around MDNode to access encoded debug info.
49 /// This should not be stored in a container, because the underlying MDNode
50 /// may change in certain situations.
55 FlagProtected = 1 << 1,
57 FlagAppleBlock = 1 << 3,
58 FlagBlockByrefStruct = 1 << 4,
60 FlagArtificial = 1 << 6,
61 FlagExplicit = 1 << 7,
62 FlagPrototyped = 1 << 8,
63 FlagObjcClassComplete = 1 << 9,
64 FlagObjectPointer = 1 << 10,
66 FlagStaticMember = 1 << 12,
67 FlagIndirectVariable = 1 << 13
70 const MDNode *DbgNode;
72 StringRef getStringField(unsigned Elt) const;
73 unsigned getUnsignedField(unsigned Elt) const {
74 return (unsigned)getUInt64Field(Elt);
76 uint64_t getUInt64Field(unsigned Elt) const;
77 int64_t getInt64Field(unsigned Elt) const;
78 DIDescriptor getDescriptorField(unsigned Elt) const;
80 template <typename DescTy>
81 DescTy getFieldAs(unsigned Elt) const {
82 return DescTy(getDescriptorField(Elt));
85 GlobalVariable *getGlobalVariableField(unsigned Elt) const;
86 Constant *getConstantField(unsigned Elt) const;
87 Function *getFunctionField(unsigned Elt) const;
88 void replaceFunctionField(unsigned Elt, Function *F);
91 explicit DIDescriptor() : DbgNode(0) {}
92 explicit DIDescriptor(const MDNode *N) : DbgNode(N) {}
93 explicit DIDescriptor(const DIFile F);
94 explicit DIDescriptor(const DISubprogram F);
95 explicit DIDescriptor(const DILexicalBlockFile F);
96 explicit DIDescriptor(const DILexicalBlock F);
97 explicit DIDescriptor(const DIVariable F);
98 explicit DIDescriptor(const DIType F);
102 operator MDNode *() const { return const_cast<MDNode*>(DbgNode); }
103 MDNode *operator ->() const { return const_cast<MDNode*>(DbgNode); }
105 // An explicit operator bool so that we can do testing of DI values
107 // FIXME: This operator bool isn't actually protecting anything at the
108 // moment due to the conversion operator above making DIDescriptor nodes
109 // implicitly convertable to pointer.
110 LLVM_EXPLICIT operator bool() const { return DbgNode != 0; }
112 unsigned getTag() const {
113 return getUnsignedField(0) & ~LLVMDebugVersionMask;
116 bool isDerivedType() const;
117 bool isCompositeType() const;
118 bool isBasicType() const;
119 bool isVariable() const;
120 bool isSubprogram() const;
121 bool isGlobalVariable() const;
122 bool isScope() const;
124 bool isCompileUnit() const;
125 bool isNameSpace() const;
126 bool isLexicalBlockFile() const;
127 bool isLexicalBlock() const;
128 bool isSubrange() const;
129 bool isEnumerator() const;
131 bool isGlobal() const;
132 bool isUnspecifiedParameter() const;
133 bool isTemplateTypeParameter() const;
134 bool isTemplateValueParameter() const;
135 bool isObjCProperty() const;
136 bool isImportedEntity() const;
138 /// print - print descriptor.
139 void print(raw_ostream &OS) const;
141 /// dump - print descriptor to dbgs() with a newline.
145 /// DISubrange - This is used to represent ranges, for array bounds.
146 class DISubrange : public DIDescriptor {
147 friend class DIDescriptor;
148 void printInternal(raw_ostream &OS) const;
150 explicit DISubrange(const MDNode *N = 0) : DIDescriptor(N) {}
152 int64_t getLo() const { return getInt64Field(1); }
153 int64_t getCount() const { return getInt64Field(2); }
157 /// DIArray - This descriptor holds an array of descriptors.
158 class DIArray : public DIDescriptor {
160 explicit DIArray(const MDNode *N = 0)
163 unsigned getNumElements() const;
164 DIDescriptor getElement(unsigned Idx) const {
165 return getDescriptorField(Idx);
169 /// DIScope - A base class for various scopes.
170 class DIScope : public DIDescriptor {
172 friend class DIDescriptor;
173 void printInternal(raw_ostream &OS) const;
175 explicit DIScope(const MDNode *N = 0) : DIDescriptor (N) {}
177 /// Set the filename by allocating a new string MDNode for
178 /// it and attaching it to the underlying node.
179 void setFilename(StringRef Name, LLVMContext &Context);
180 StringRef getFilename() const;
181 StringRef getDirectory() const;
184 /// DIFile - This is a wrapper for a file.
185 class DIFile : public DIScope {
186 friend class DIDescriptor;
188 explicit DIFile(const MDNode *N = 0) : DIScope(N) {
189 if (DbgNode && !isFile())
192 MDNode *getFileNode() const;
196 /// DICompileUnit - A wrapper for a compile unit.
197 class DICompileUnit : public DIScope {
198 friend class DIDescriptor;
199 void printInternal(raw_ostream &OS) const;
201 explicit DICompileUnit(const MDNode *N = 0) : DIScope(N) {}
203 unsigned getLanguage() const { return getUnsignedField(2); }
204 StringRef getProducer() const { return getStringField(3); }
206 bool isOptimized() const { return getUnsignedField(4) != 0; }
207 StringRef getFlags() const { return getStringField(5); }
208 unsigned getRunTimeVersion() const { return getUnsignedField(6); }
210 DIArray getEnumTypes() const;
211 DIArray getRetainedTypes() const;
212 DIArray getSubprograms() const;
213 DIArray getGlobalVariables() const;
214 DIArray getImportedEntities() const;
216 StringRef getSplitDebugFilename() const { return getStringField(12); }
218 /// Verify - Verify that a compile unit is well formed.
222 /// DIEnumerator - A wrapper for an enumerator (e.g. X and Y in 'enum {X,Y}').
223 /// FIXME: it seems strange that this doesn't have either a reference to the
224 /// type/precision or a file/line pair for location info.
225 class DIEnumerator : public DIDescriptor {
226 friend class DIDescriptor;
227 void printInternal(raw_ostream &OS) const;
229 explicit DIEnumerator(const MDNode *N = 0) : DIDescriptor(N) {}
231 StringRef getName() const { return getStringField(1); }
232 int64_t getEnumValue() const { return getInt64Field(2); }
236 /// DIType - This is a wrapper for a type.
237 /// FIXME: Types should be factored much better so that CV qualifiers and
238 /// others do not require a huge and empty descriptor full of zeros.
239 class DIType : public DIScope {
241 friend class DIDescriptor;
242 void printInternal(raw_ostream &OS) const;
243 // This ctor is used when the Tag has already been validated by a derived
245 DIType(const MDNode *N, bool, bool) : DIScope(N) {}
247 /// Verify - Verify that a type descriptor is well formed.
249 explicit DIType(const MDNode *N);
252 DIScope getContext() const { return getFieldAs<DIScope>(2); }
253 StringRef getName() const { return getStringField(3); }
254 unsigned getLineNumber() const { return getUnsignedField(4); }
255 uint64_t getSizeInBits() const { return getUInt64Field(5); }
256 uint64_t getAlignInBits() const { return getUInt64Field(6); }
257 // FIXME: Offset is only used for DW_TAG_member nodes. Making every type
258 // carry this is just plain insane.
259 uint64_t getOffsetInBits() const { return getUInt64Field(7); }
260 unsigned getFlags() const { return getUnsignedField(8); }
261 bool isPrivate() const {
262 return (getFlags() & FlagPrivate) != 0;
264 bool isProtected() const {
265 return (getFlags() & FlagProtected) != 0;
267 bool isForwardDecl() const {
268 return (getFlags() & FlagFwdDecl) != 0;
270 // isAppleBlock - Return true if this is the Apple Blocks extension.
271 bool isAppleBlockExtension() const {
272 return (getFlags() & FlagAppleBlock) != 0;
274 bool isBlockByrefStruct() const {
275 return (getFlags() & FlagBlockByrefStruct) != 0;
277 bool isVirtual() const {
278 return (getFlags() & FlagVirtual) != 0;
280 bool isArtificial() const {
281 return (getFlags() & FlagArtificial) != 0;
283 bool isObjectPointer() const {
284 return (getFlags() & FlagObjectPointer) != 0;
286 bool isObjcClassComplete() const {
287 return (getFlags() & FlagObjcClassComplete) != 0;
289 bool isVector() const {
290 return (getFlags() & FlagVector) != 0;
292 bool isStaticMember() const {
293 return (getFlags() & FlagStaticMember) != 0;
295 bool isValid() const {
296 return DbgNode && isType();
299 /// isUnsignedDIType - Return true if type encoding is unsigned.
300 bool isUnsignedDIType();
302 /// replaceAllUsesWith - Replace all uses of debug info referenced by
304 void replaceAllUsesWith(DIDescriptor &D);
305 void replaceAllUsesWith(MDNode *D);
308 /// DIBasicType - A basic type, like 'int' or 'float'.
309 class DIBasicType : public DIType {
311 explicit DIBasicType(const MDNode *N = 0) : DIType(N) {}
313 unsigned getEncoding() const { return getUnsignedField(9); }
315 /// Verify - Verify that a basic type descriptor is well formed.
319 /// DIDerivedType - A simple derived type, like a const qualified type,
320 /// a typedef, a pointer or reference, et cetera. Or, a data member of
321 /// a class/struct/union.
322 class DIDerivedType : public DIType {
323 friend class DIDescriptor;
324 void printInternal(raw_ostream &OS) const;
326 explicit DIDerivedType(const MDNode *N, bool, bool)
327 : DIType(N, true, true) {}
329 explicit DIDerivedType(const MDNode *N = 0)
330 : DIType(N, true, true) {}
332 DIType getTypeDerivedFrom() const { return getFieldAs<DIType>(9); }
334 /// getOriginalTypeSize - If this type is derived from a base type then
335 /// return base type size.
336 uint64_t getOriginalTypeSize() const;
338 /// getObjCProperty - Return property node, if this ivar is
339 /// associated with one.
340 MDNode *getObjCProperty() const;
342 DIType getClassType() const {
343 assert(getTag() == dwarf::DW_TAG_ptr_to_member_type);
344 return getFieldAs<DIType>(10);
347 Constant *getConstant() const {
348 assert((getTag() == dwarf::DW_TAG_member) && isStaticMember());
349 return getConstantField(10);
352 /// Verify - Verify that a derived type descriptor is well formed.
356 /// DICompositeType - This descriptor holds a type that can refer to multiple
357 /// other types, like a function or struct.
358 /// DICompositeType is derived from DIDerivedType because some
359 /// composite types (such as enums) can be derived from basic types
360 // FIXME: Make this derive from DIType directly & just store the
361 // base type in a single DIType field.
362 class DICompositeType : public DIDerivedType {
363 friend class DIDescriptor;
364 void printInternal(raw_ostream &OS) const;
366 explicit DICompositeType(const MDNode *N = 0)
367 : DIDerivedType(N, true, true) {
368 if (N && !isCompositeType())
372 DIArray getTypeArray() const { return getFieldAs<DIArray>(10); }
373 void setTypeArray(DIArray Elements, DIArray TParams = DIArray());
374 unsigned getRunTimeLang() const { return getUnsignedField(11); }
375 DICompositeType getContainingType() const {
376 return getFieldAs<DICompositeType>(12);
378 void setContainingType(DICompositeType ContainingType);
379 DIArray getTemplateParams() const { return getFieldAs<DIArray>(13); }
381 /// Verify - Verify that a composite type descriptor is well formed.
385 /// DITemplateTypeParameter - This is a wrapper for template type parameter.
386 class DITemplateTypeParameter : public DIDescriptor {
388 explicit DITemplateTypeParameter(const MDNode *N = 0) : DIDescriptor(N) {}
390 DIScope getContext() const { return getFieldAs<DIScope>(1); }
391 StringRef getName() const { return getStringField(2); }
392 DIType getType() const { return getFieldAs<DIType>(3); }
393 StringRef getFilename() const {
394 return getFieldAs<DIFile>(4).getFilename();
396 StringRef getDirectory() const {
397 return getFieldAs<DIFile>(4).getDirectory();
399 unsigned getLineNumber() const { return getUnsignedField(5); }
400 unsigned getColumnNumber() const { return getUnsignedField(6); }
404 /// DITemplateValueParameter - This is a wrapper for template value parameter.
405 class DITemplateValueParameter : public DIDescriptor {
407 explicit DITemplateValueParameter(const MDNode *N = 0) : DIDescriptor(N) {}
409 DIScope getContext() const { return getFieldAs<DIScope>(1); }
410 StringRef getName() const { return getStringField(2); }
411 DIType getType() const { return getFieldAs<DIType>(3); }
412 Value *getValue() const;
413 StringRef getFilename() const {
414 return getFieldAs<DIFile>(5).getFilename();
416 StringRef getDirectory() const {
417 return getFieldAs<DIFile>(5).getDirectory();
419 unsigned getLineNumber() const { return getUnsignedField(6); }
420 unsigned getColumnNumber() const { return getUnsignedField(7); }
424 /// DISubprogram - This is a wrapper for a subprogram (e.g. a function).
425 class DISubprogram : public DIScope {
426 friend class DIDescriptor;
427 void printInternal(raw_ostream &OS) const;
429 explicit DISubprogram(const MDNode *N = 0) : DIScope(N) {}
431 DIScope getContext() const { return getFieldAs<DIScope>(2); }
432 StringRef getName() const { return getStringField(3); }
433 StringRef getDisplayName() const { return getStringField(4); }
434 StringRef getLinkageName() const { return getStringField(5); }
435 unsigned getLineNumber() const { return getUnsignedField(6); }
436 DICompositeType getType() const { return getFieldAs<DICompositeType>(7); }
438 /// isLocalToUnit - Return true if this subprogram is local to the current
439 /// compile unit, like 'static' in C.
440 unsigned isLocalToUnit() const { return getUnsignedField(8); }
441 unsigned isDefinition() const { return getUnsignedField(9); }
443 unsigned getVirtuality() const { return getUnsignedField(10); }
444 unsigned getVirtualIndex() const { return getUnsignedField(11); }
446 DICompositeType getContainingType() const {
447 return getFieldAs<DICompositeType>(12);
450 unsigned getFlags() const {
451 return getUnsignedField(13);
454 unsigned isArtificial() const {
455 return (getUnsignedField(13) & FlagArtificial) != 0;
457 /// isPrivate - Return true if this subprogram has "private"
458 /// access specifier.
459 bool isPrivate() const {
460 return (getUnsignedField(13) & FlagPrivate) != 0;
462 /// isProtected - Return true if this subprogram has "protected"
463 /// access specifier.
464 bool isProtected() const {
465 return (getUnsignedField(13) & FlagProtected) != 0;
467 /// isExplicit - Return true if this subprogram is marked as explicit.
468 bool isExplicit() const {
469 return (getUnsignedField(13) & FlagExplicit) != 0;
471 /// isPrototyped - Return true if this subprogram is prototyped.
472 bool isPrototyped() const {
473 return (getUnsignedField(13) & FlagPrototyped) != 0;
476 unsigned isOptimized() const;
478 /// Verify - Verify that a subprogram descriptor is well formed.
481 /// describes - Return true if this subprogram provides debugging
482 /// information for the function F.
483 bool describes(const Function *F);
485 Function *getFunction() const { return getFunctionField(15); }
486 void replaceFunction(Function *F) { replaceFunctionField(15, F); }
487 DIArray getTemplateParams() const { return getFieldAs<DIArray>(16); }
488 DISubprogram getFunctionDeclaration() const {
489 return getFieldAs<DISubprogram>(17);
491 MDNode *getVariablesNodes() const;
492 DIArray getVariables() const;
494 /// getScopeLineNumber - Get the beginning of the scope of the
495 /// function, not necessarily where the name of the program
497 unsigned getScopeLineNumber() const { return getUnsignedField(19); }
500 /// DIGlobalVariable - This is a wrapper for a global variable.
501 class DIGlobalVariable : public DIDescriptor {
502 friend class DIDescriptor;
503 void printInternal(raw_ostream &OS) const;
505 explicit DIGlobalVariable(const MDNode *N = 0) : DIDescriptor(N) {}
507 DIScope getContext() const { return getFieldAs<DIScope>(2); }
508 StringRef getName() const { return getStringField(3); }
509 StringRef getDisplayName() const { return getStringField(4); }
510 StringRef getLinkageName() const { return getStringField(5); }
511 StringRef getFilename() const {
512 return getFieldAs<DIFile>(6).getFilename();
514 StringRef getDirectory() const {
515 return getFieldAs<DIFile>(6).getDirectory();
519 unsigned getLineNumber() const { return getUnsignedField(7); }
520 DIType getType() const { return getFieldAs<DIType>(8); }
521 unsigned isLocalToUnit() const { return getUnsignedField(9); }
522 unsigned isDefinition() const { return getUnsignedField(10); }
524 GlobalVariable *getGlobal() const { return getGlobalVariableField(11); }
525 Constant *getConstant() const { return getConstantField(11); }
526 DIDerivedType getStaticDataMemberDeclaration() const {
527 return getFieldAs<DIDerivedType>(12);
530 /// Verify - Verify that a global variable descriptor is well formed.
534 /// DIVariable - This is a wrapper for a variable (e.g. parameter, local,
536 class DIVariable : public DIDescriptor {
537 friend class DIDescriptor;
538 void printInternal(raw_ostream &OS) const;
540 explicit DIVariable(const MDNode *N = 0)
543 DIScope getContext() const { return getFieldAs<DIScope>(1); }
544 StringRef getName() const { return getStringField(2); }
545 DIFile getFile() const { return getFieldAs<DIFile>(3); }
546 unsigned getLineNumber() const {
547 return (getUnsignedField(4) << 8) >> 8;
549 unsigned getArgNumber() const {
550 unsigned L = getUnsignedField(4);
553 DIType getType() const { return getFieldAs<DIType>(5); }
555 /// isArtificial - Return true if this variable is marked as "artificial".
556 bool isArtificial() const {
557 return (getUnsignedField(6) & FlagArtificial) != 0;
560 bool isObjectPointer() const {
561 return (getUnsignedField(6) & FlagObjectPointer) != 0;
564 /// \brief Return true if this variable is represented as a pointer.
565 bool isIndirect() const {
566 return (getUnsignedField(6) & FlagIndirectVariable) != 0;
569 /// getInlinedAt - If this variable is inlined then return inline location.
570 MDNode *getInlinedAt() const;
572 /// Verify - Verify that a variable descriptor is well formed.
575 /// HasComplexAddr - Return true if the variable has a complex address.
576 bool hasComplexAddress() const {
577 return getNumAddrElements() > 0;
580 unsigned getNumAddrElements() const;
582 uint64_t getAddrElement(unsigned Idx) const {
583 return getUInt64Field(Idx+8);
586 /// isBlockByrefVariable - Return true if the variable was declared as
587 /// a "__block" variable (Apple Blocks).
588 bool isBlockByrefVariable() const {
589 return getType().isBlockByrefStruct();
592 /// isInlinedFnArgument - Return true if this variable provides debugging
593 /// information for an inlined function arguments.
594 bool isInlinedFnArgument(const Function *CurFn);
596 void printExtendedName(raw_ostream &OS) const;
599 /// DILexicalBlock - This is a wrapper for a lexical block.
600 class DILexicalBlock : public DIScope {
602 explicit DILexicalBlock(const MDNode *N = 0) : DIScope(N) {}
603 DIScope getContext() const { return getFieldAs<DIScope>(2); }
604 unsigned getLineNumber() const { return getUnsignedField(3); }
605 unsigned getColumnNumber() const { return getUnsignedField(4); }
609 /// DILexicalBlockFile - This is a wrapper for a lexical block with
610 /// a filename change.
611 class DILexicalBlockFile : public DIScope {
613 explicit DILexicalBlockFile(const MDNode *N = 0) : DIScope(N) {}
614 DIScope getContext() const { if (getScope().isSubprogram()) return getScope(); return getScope().getContext(); }
615 unsigned getLineNumber() const { return getScope().getLineNumber(); }
616 unsigned getColumnNumber() const { return getScope().getColumnNumber(); }
617 DILexicalBlock getScope() const { return getFieldAs<DILexicalBlock>(2); }
621 /// DINameSpace - A wrapper for a C++ style name space.
622 class DINameSpace : public DIScope {
623 friend class DIDescriptor;
624 void printInternal(raw_ostream &OS) const;
626 explicit DINameSpace(const MDNode *N = 0) : DIScope(N) {}
627 DIScope getContext() const { return getFieldAs<DIScope>(2); }
628 StringRef getName() const { return getStringField(3); }
629 unsigned getLineNumber() const { return getUnsignedField(4); }
633 /// DILocation - This object holds location information. This object
634 /// is not associated with any DWARF tag.
635 class DILocation : public DIDescriptor {
637 explicit DILocation(const MDNode *N) : DIDescriptor(N) { }
639 unsigned getLineNumber() const { return getUnsignedField(0); }
640 unsigned getColumnNumber() const { return getUnsignedField(1); }
641 DIScope getScope() const { return getFieldAs<DIScope>(2); }
642 DILocation getOrigLocation() const { return getFieldAs<DILocation>(3); }
643 StringRef getFilename() const { return getScope().getFilename(); }
644 StringRef getDirectory() const { return getScope().getDirectory(); }
648 class DIObjCProperty : public DIDescriptor {
649 friend class DIDescriptor;
650 void printInternal(raw_ostream &OS) const;
652 explicit DIObjCProperty(const MDNode *N) : DIDescriptor(N) { }
654 StringRef getObjCPropertyName() const { return getStringField(1); }
655 DIFile getFile() const { return getFieldAs<DIFile>(2); }
656 unsigned getLineNumber() const { return getUnsignedField(3); }
658 StringRef getObjCPropertyGetterName() const {
659 return getStringField(4);
661 StringRef getObjCPropertySetterName() const {
662 return getStringField(5);
664 bool isReadOnlyObjCProperty() const {
665 return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_readonly) != 0;
667 bool isReadWriteObjCProperty() const {
668 return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_readwrite) != 0;
670 bool isAssignObjCProperty() const {
671 return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_assign) != 0;
673 bool isRetainObjCProperty() const {
674 return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_retain) != 0;
676 bool isCopyObjCProperty() const {
677 return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_copy) != 0;
679 bool isNonAtomicObjCProperty() const {
680 return (getUnsignedField(6) & dwarf::DW_APPLE_PROPERTY_nonatomic) != 0;
683 DIType getType() const { return getFieldAs<DIType>(7); }
685 /// Verify - Verify that a derived type descriptor is well formed.
689 /// \brief An imported module (C++ using directive or similar).
690 class DIImportedEntity : public DIDescriptor {
691 friend class DIDescriptor;
692 void printInternal(raw_ostream &OS) const;
694 explicit DIImportedEntity(const MDNode *N) : DIDescriptor(N) { }
695 DIScope getContext() const { return getFieldAs<DIScope>(1); }
696 DIDescriptor getEntity() const { return getFieldAs<DIDescriptor>(2); }
697 unsigned getLineNumber() const { return getUnsignedField(3); }
698 StringRef getName() const { return getStringField(4); }
702 /// getDISubprogram - Find subprogram that is enclosing this scope.
703 DISubprogram getDISubprogram(const MDNode *Scope);
705 /// getDICompositeType - Find underlying composite type.
706 DICompositeType getDICompositeType(DIType T);
708 /// isSubprogramContext - Return true if Context is either a subprogram
709 /// or another context nested inside a subprogram.
710 bool isSubprogramContext(const MDNode *Context);
712 /// getOrInsertFnSpecificMDNode - Return a NameMDNode that is suitable
713 /// to hold function specific information.
714 NamedMDNode *getOrInsertFnSpecificMDNode(Module &M, DISubprogram SP);
716 /// getFnSpecificMDNode - Return a NameMDNode, if available, that is
717 /// suitable to hold function specific information.
718 NamedMDNode *getFnSpecificMDNode(const Module &M, DISubprogram SP);
720 /// createInlinedVariable - Create a new inlined variable based on current
722 /// @param DV Current Variable.
723 /// @param InlinedScope Location at current variable is inlined.
724 DIVariable createInlinedVariable(MDNode *DV, MDNode *InlinedScope,
725 LLVMContext &VMContext);
727 /// cleanseInlinedVariable - Remove inlined scope from the variable.
728 DIVariable cleanseInlinedVariable(MDNode *DV, LLVMContext &VMContext);
730 class DebugInfoFinder {
732 /// processModule - Process entire module and collect debug info
734 void processModule(const Module &M);
737 /// processType - Process DIType.
738 void processType(DIType DT);
740 /// processLexicalBlock - Process DILexicalBlock.
741 void processLexicalBlock(DILexicalBlock LB);
743 /// processSubprogram - Process DISubprogram.
744 void processSubprogram(DISubprogram SP);
746 /// processDeclare - Process DbgDeclareInst.
747 void processDeclare(const DbgDeclareInst *DDI);
749 /// processLocation - Process DILocation.
750 void processLocation(DILocation Loc);
752 /// addCompileUnit - Add compile unit into CUs.
753 bool addCompileUnit(DICompileUnit CU);
755 /// addGlobalVariable - Add global variable into GVs.
756 bool addGlobalVariable(DIGlobalVariable DIG);
758 // addSubprogram - Add subprogram into SPs.
759 bool addSubprogram(DISubprogram SP);
761 /// addType - Add type into Tys.
762 bool addType(DIType DT);
765 typedef SmallVectorImpl<MDNode *>::const_iterator iterator;
766 iterator compile_unit_begin() const { return CUs.begin(); }
767 iterator compile_unit_end() const { return CUs.end(); }
768 iterator subprogram_begin() const { return SPs.begin(); }
769 iterator subprogram_end() const { return SPs.end(); }
770 iterator global_variable_begin() const { return GVs.begin(); }
771 iterator global_variable_end() const { return GVs.end(); }
772 iterator type_begin() const { return TYs.begin(); }
773 iterator type_end() const { return TYs.end(); }
775 unsigned compile_unit_count() const { return CUs.size(); }
776 unsigned global_variable_count() const { return GVs.size(); }
777 unsigned subprogram_count() const { return SPs.size(); }
778 unsigned type_count() const { return TYs.size(); }
781 SmallVector<MDNode *, 8> CUs; // Compile Units
782 SmallVector<MDNode *, 8> SPs; // Subprograms
783 SmallVector<MDNode *, 8> GVs; // Global Variables;
784 SmallVector<MDNode *, 8> TYs; // Types
785 SmallPtrSet<MDNode *, 64> NodesSeen;
787 } // end namespace llvm