1 //===- 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_IR_DEBUGINFO_H
18 #define LLVM_IR_DEBUGINFO_H
20 #include "llvm/ADT/DenseMap.h"
21 #include "llvm/ADT/SmallPtrSet.h"
22 #include "llvm/ADT/SmallVector.h"
23 #include "llvm/ADT/StringRef.h"
24 #include "llvm/ADT/iterator_range.h"
25 #include "llvm/IR/DebugInfoMetadata.h"
26 #include "llvm/Support/Casting.h"
27 #include "llvm/Support/Dwarf.h"
28 #include "llvm/Support/ErrorHandling.h"
52 class DILexicalBlockFile;
58 /// \brief Maps from type identifier to the actual MDNode.
59 typedef DenseMap<const MDString *, MDNode *> DITypeIdentifierMap;
61 /// \brief A thin wraper around MDNode to access encoded debug info.
63 /// This should not be stored in a container, because the underlying MDNode may
64 /// change in certain situations.
67 /// \brief Duplicated debug info flags.
69 /// \see DebugNode::DIFlags.
71 #define HANDLE_DI_FLAG(ID, NAME) Flag##NAME = DebugNode::Flag##NAME,
72 #include "llvm/IR/DebugInfoFlags.def"
73 FlagAccessibility = DebugNode::FlagAccessibility
77 const MDNode *DbgNode;
80 explicit DIDescriptor(const MDNode *N = nullptr) : DbgNode(N) {}
81 DIDescriptor(const DebugNode *N) : DbgNode(N) {}
83 MDNode *get() const { return const_cast<MDNode *>(DbgNode); }
84 operator MDNode *() const { return get(); }
85 MDNode *operator->() const { return get(); }
86 MDNode &operator*() const { return *get(); }
88 // An explicit operator bool so that we can do testing of DI values
90 // FIXME: This operator bool isn't actually protecting anything at the
91 // moment due to the conversion operator above making DIDescriptor nodes
92 // implicitly convertable to bool.
93 explicit operator bool() const { return DbgNode != nullptr; }
95 bool operator==(DIDescriptor Other) const { return DbgNode == Other.DbgNode; }
96 bool operator!=(DIDescriptor Other) const { return !operator==(Other); }
98 uint16_t getTag() const {
99 if (auto *N = dyn_cast_or_null<DebugNode>(get()))
104 void print(raw_ostream &OS) const;
108 #define DECLARE_SIMPLIFY_DESCRIPTOR(DESC) \
110 template <> struct simplify_type<const DESC>; \
111 template <> struct simplify_type<DESC>;
112 DECLARE_SIMPLIFY_DESCRIPTOR(DIDescriptor)
113 DECLARE_SIMPLIFY_DESCRIPTOR(DISubrange)
114 DECLARE_SIMPLIFY_DESCRIPTOR(DIEnumerator)
115 DECLARE_SIMPLIFY_DESCRIPTOR(DIScope)
116 DECLARE_SIMPLIFY_DESCRIPTOR(DIType)
117 DECLARE_SIMPLIFY_DESCRIPTOR(DIBasicType)
118 DECLARE_SIMPLIFY_DESCRIPTOR(DIDerivedType)
119 DECLARE_SIMPLIFY_DESCRIPTOR(DICompositeType)
120 DECLARE_SIMPLIFY_DESCRIPTOR(DISubroutineType)
121 DECLARE_SIMPLIFY_DESCRIPTOR(DIFile)
122 DECLARE_SIMPLIFY_DESCRIPTOR(DICompileUnit)
123 DECLARE_SIMPLIFY_DESCRIPTOR(DISubprogram)
124 DECLARE_SIMPLIFY_DESCRIPTOR(DILexicalBlock)
125 DECLARE_SIMPLIFY_DESCRIPTOR(DILexicalBlockFile)
126 DECLARE_SIMPLIFY_DESCRIPTOR(DINameSpace)
127 DECLARE_SIMPLIFY_DESCRIPTOR(DITemplateTypeParameter)
128 DECLARE_SIMPLIFY_DESCRIPTOR(DITemplateValueParameter)
129 DECLARE_SIMPLIFY_DESCRIPTOR(DIGlobalVariable)
130 DECLARE_SIMPLIFY_DESCRIPTOR(DIVariable)
131 DECLARE_SIMPLIFY_DESCRIPTOR(DIExpression)
132 DECLARE_SIMPLIFY_DESCRIPTOR(DILocation)
133 DECLARE_SIMPLIFY_DESCRIPTOR(DIObjCProperty)
134 DECLARE_SIMPLIFY_DESCRIPTOR(DIImportedEntity)
135 #undef DECLARE_SIMPLIFY_DESCRIPTOR
137 typedef DebugNodeArray DIArray;
138 typedef MDTypeRefArray DITypeArray;
140 /// \brief This is used to represent ranges, for array bounds.
141 class DISubrange : public DIDescriptor {
143 DISubrange() = default;
144 DISubrange(const MDSubrange *N) : DIDescriptor(N) {}
146 MDSubrange *get() const {
147 return cast_or_null<MDSubrange>(DIDescriptor::get());
149 operator MDSubrange *() const { return get(); }
150 MDSubrange *operator->() const { return get(); }
151 MDSubrange &operator*() const { return *get(); }
153 int64_t getLo() const { return get()->getLowerBound(); }
154 int64_t getCount() const { return get()->getCount(); }
157 /// \brief A wrapper for an enumerator (e.g. X and Y in 'enum {X,Y}').
159 /// FIXME: it seems strange that this doesn't have either a reference to the
160 /// type/precision or a file/line pair for location info.
161 class DIEnumerator : public DIDescriptor {
163 DIEnumerator() = default;
164 DIEnumerator(const MDEnumerator *N) : DIDescriptor(N) {}
166 MDEnumerator *get() const {
167 return cast_or_null<MDEnumerator>(DIDescriptor::get());
169 operator MDEnumerator *() const { return get(); }
170 MDEnumerator *operator->() const { return get(); }
171 MDEnumerator &operator*() const { return *get(); }
173 StringRef getName() const { return get()->getName(); }
174 int64_t getEnumValue() const { return get()->getValue(); }
177 template <typename T> class DIRef;
178 typedef DIRef<DIDescriptor> DIDescriptorRef;
179 typedef DIRef<DIScope> DIScopeRef;
180 typedef DIRef<DIType> DITypeRef;
182 /// \brief A base class for various scopes.
184 /// Although, implementation-wise, DIScope is the parent class of most
185 /// other DIxxx classes, including DIType and its descendants, most of
186 /// DIScope's descendants are not a substitutable subtype of
187 /// DIScope. The DIDescriptor::isScope() method only is true for
188 /// DIScopes that are scopes in the strict lexical scope sense
189 /// (DICompileUnit, DISubprogram, etc.), but not for, e.g., a DIType.
190 class DIScope : public DIDescriptor {
193 DIScope(const MDScope *N) : DIDescriptor(N) {}
195 MDScope *get() const { return cast_or_null<MDScope>(DIDescriptor::get()); }
196 operator MDScope *() const { return get(); }
197 MDScope *operator->() const { return get(); }
198 MDScope &operator*() const { return *get(); }
200 inline DIScopeRef getContext() const;
201 StringRef getName() const { return get()->getName(); }
202 StringRef getFilename() const { return get()->getFilename(); }
203 StringRef getDirectory() const { return get()->getDirectory(); }
205 /// \brief Generate a reference to this DIScope.
207 /// Uses the type identifier instead of the actual MDNode if possible, to
208 /// help type uniquing.
209 DIScopeRef getRef() const;
212 /// \brief Represents reference to a DIDescriptor.
214 /// Abstracts over direct and identifier-based metadata references.
215 template <typename T> class DIRef {
216 /// \brief Val can be either a MDNode or a MDString.
218 /// In the latter, MDString specifies the type identifier.
223 DIRef(const TypedDebugNodeRef<U> &Ref,
224 typename std::enable_if<std::is_convertible<U *, T>::value>::type * =
228 T resolve(const DITypeIdentifierMap &Map) const;
229 operator Metadata *() const { return const_cast<Metadata *>(Val); }
233 DIDescriptor DIRef<DIDescriptor>::resolve(const DITypeIdentifierMap &Map) const;
235 DIScope DIRef<DIScope>::resolve(const DITypeIdentifierMap &Map) const;
236 template <> DIType DIRef<DIType>::resolve(const DITypeIdentifierMap &Map) const;
238 DIScopeRef DIScope::getContext() const { return get()->getScope(); }
240 /// \brief This is a wrapper for a type.
242 /// FIXME: Types should be factored much better so that CV qualifiers and
243 /// others do not require a huge and empty descriptor full of zeros.
244 class DIType : public DIScope {
247 DIType(const MDType *N) : DIScope(N) {}
249 MDType *get() const { return cast_or_null<MDType>(DIDescriptor::get()); }
250 operator MDType *() const { return get(); }
251 MDType *operator->() const { return get(); }
252 MDType &operator*() const { return *get(); }
254 DIScopeRef getContext() const { return get()->getScope(); }
255 StringRef getName() const { return get()->getName(); }
256 unsigned getLineNumber() const { return get()->getLine(); }
257 uint64_t getSizeInBits() const { return get()->getSizeInBits(); }
258 uint64_t getAlignInBits() const { return get()->getAlignInBits(); }
259 // FIXME: Offset is only used for DW_TAG_member nodes. Making every type
260 // carry this is just plain insane.
261 uint64_t getOffsetInBits() const { return get()->getOffsetInBits(); }
262 unsigned getFlags() const { return get()->getFlags(); }
264 bool isPrivate() const { return get()->isPrivate(); }
265 bool isProtected() const { return get()->isProtected(); }
266 bool isPublic() const { return get()->isPublic(); }
267 bool isForwardDecl() const { return get()->isForwardDecl(); }
268 bool isAppleBlockExtension() const { return get()->isAppleBlockExtension(); }
269 bool isBlockByrefStruct() const { return get()->isBlockByrefStruct(); }
270 bool isVirtual() const { return get()->isVirtual(); }
271 bool isArtificial() const { return get()->isArtificial(); }
272 bool isObjectPointer() const { return get()->isObjectPointer(); }
273 bool isObjcClassComplete() const { return get()->isObjcClassComplete(); }
274 bool isVector() const { return get()->isVector(); }
275 bool isStaticMember() const { return get()->isStaticMember(); }
276 bool isLValueReference() const { return get()->isLValueReference(); }
277 bool isRValueReference() const { return get()->isRValueReference(); }
280 /// \brief A basic type, like 'int' or 'float'.
281 class DIBasicType : public DIType {
283 DIBasicType() = default;
284 DIBasicType(const MDBasicType *N) : DIType(N) {}
286 MDBasicType *get() const {
287 return cast_or_null<MDBasicType>(DIDescriptor::get());
289 operator MDBasicType *() const { return get(); }
290 MDBasicType *operator->() const { return get(); }
291 MDBasicType &operator*() const { return *get(); }
293 unsigned getEncoding() const { return get()->getEncoding(); }
296 /// \brief A simple derived type
298 /// Like a const qualified type, a typedef, a pointer or reference, et cetera.
299 /// Or, a data member of a class/struct/union.
300 class DIDerivedType : public DIType {
302 DIDerivedType() = default;
303 DIDerivedType(const MDDerivedTypeBase *N) : DIType(N) {}
305 MDDerivedTypeBase *get() const {
306 return cast_or_null<MDDerivedTypeBase>(DIDescriptor::get());
308 operator MDDerivedTypeBase *() const { return get(); }
309 MDDerivedTypeBase *operator->() const { return get(); }
310 MDDerivedTypeBase &operator*() const { return *get(); }
312 DITypeRef getTypeDerivedFrom() const { return get()->getBaseType(); }
315 /// \brief Types that refer to multiple other types.
317 /// This descriptor holds a type that can refer to multiple other types, like a
318 /// function or struct.
320 /// DICompositeType is derived from DIDerivedType because some
321 /// composite types (such as enums) can be derived from basic types
322 // FIXME: Make this derive from DIType directly & just store the
323 // base type in a single DIType field.
324 class DICompositeType : public DIDerivedType {
325 friend class DIBuilder;
328 DICompositeType() = default;
329 DICompositeType(const MDCompositeTypeBase *N) : DIDerivedType(N) {}
331 MDCompositeTypeBase *get() const {
332 return cast_or_null<MDCompositeTypeBase>(DIDescriptor::get());
334 operator MDCompositeTypeBase *() const { return get(); }
335 MDCompositeTypeBase *operator->() const { return get(); }
336 MDCompositeTypeBase &operator*() const { return *get(); }
338 DIArray getElements() const { return get()->getElements(); }
340 unsigned getRunTimeLang() const { return get()->getRuntimeLang(); }
341 DITypeRef getContainingType() const { return get()->getVTableHolder(); }
343 DIArray getTemplateParams() const { return get()->getTemplateParams(); }
344 MDString *getIdentifier() const { return get()->getRawIdentifier(); }
347 class DISubroutineType : public DICompositeType {
349 DISubroutineType() = default;
350 DISubroutineType(const MDSubroutineType *N) : DICompositeType(N) {}
352 MDSubroutineType *get() const {
353 return cast_or_null<MDSubroutineType>(DIDescriptor::get());
355 operator MDSubroutineType *() const { return get(); }
356 MDSubroutineType *operator->() const { return get(); }
357 MDSubroutineType &operator*() const { return *get(); }
359 MDTypeRefArray getTypeArray() const { return get()->getTypeArray(); }
366 DIFile(const MDFile *N = nullptr) : N(const_cast<MDFile *>(N)) {}
368 operator DIDescriptor() const { return N; }
369 operator DIScope() const { return N; }
370 operator MDFile *() const { return N; }
371 MDFile *operator->() const { return N; }
372 MDFile &operator*() const { return *N; }
375 class DICompileUnit {
379 DICompileUnit(const MDCompileUnit *N = nullptr)
380 : N(const_cast<MDCompileUnit *>(N)) {}
382 operator DIDescriptor() const { return N; }
383 operator DIScope() const { return N; }
384 operator MDCompileUnit *() const { return N; }
385 MDCompileUnit *operator->() const { return N; }
386 MDCompileUnit &operator*() const { return *N; }
393 DISubprogram(const MDSubprogram *N = nullptr)
394 : N(const_cast<MDSubprogram *>(N)) {}
396 operator DIDescriptor() const { return N; }
397 operator DIScope() const { return N; }
398 operator MDSubprogram *() const { return N; }
399 MDSubprogram *operator->() const { return N; }
400 MDSubprogram &operator*() const { return *N; }
403 class DILexicalBlock {
404 MDLexicalBlockBase *N;
407 DILexicalBlock(const MDLexicalBlockBase *N = nullptr)
408 : N(const_cast<MDLexicalBlockBase *>(N)) {}
410 operator DIDescriptor() const { return N; }
411 operator MDLexicalBlockBase *() const { return N; }
412 MDLexicalBlockBase *operator->() const { return N; }
413 MDLexicalBlockBase &operator*() const { return *N; }
416 class DILexicalBlockFile {
417 MDLexicalBlockFile *N;
420 DILexicalBlockFile(const MDLexicalBlockFile *N = nullptr)
421 : N(const_cast<MDLexicalBlockFile *>(N)) {}
423 operator DIDescriptor() const { return N; }
424 operator MDLexicalBlockFile *() const { return N; }
425 MDLexicalBlockFile *operator->() const { return N; }
426 MDLexicalBlockFile &operator*() const { return *N; }
433 DINameSpace(const MDNamespace *N = nullptr)
434 : N(const_cast<MDNamespace *>(N)) {}
436 operator DIDescriptor() const { return N; }
437 operator DIScope() const { return N; }
438 operator MDNamespace *() const { return N; }
439 MDNamespace *operator->() const { return N; }
440 MDNamespace &operator*() const { return *N; }
443 class DITemplateTypeParameter {
444 MDTemplateTypeParameter *N;
447 DITemplateTypeParameter(const MDTemplateTypeParameter *N = nullptr)
448 : N(const_cast<MDTemplateTypeParameter *>(N)) {}
450 operator MDTemplateTypeParameter *() const { return N; }
451 MDTemplateTypeParameter *operator->() const { return N; }
452 MDTemplateTypeParameter &operator*() const { return *N; }
455 class DITemplateValueParameter {
456 MDTemplateValueParameter *N;
459 DITemplateValueParameter(const MDTemplateValueParameter *N = nullptr)
460 : N(const_cast<MDTemplateValueParameter *>(N)) {}
462 operator MDTemplateValueParameter *() const { return N; }
463 MDTemplateValueParameter *operator->() const { return N; }
464 MDTemplateValueParameter &operator*() const { return *N; }
467 class DIGlobalVariable {
471 DIGlobalVariable(const MDGlobalVariable *N = nullptr)
472 : N(const_cast<MDGlobalVariable *>(N)) {}
474 operator DIDescriptor() const { return N; }
475 operator MDGlobalVariable *() const { return N; }
476 MDGlobalVariable *operator->() const { return N; }
477 MDGlobalVariable &operator*() const { return *N; }
484 DIVariable(const MDLocalVariable *N = nullptr)
485 : N(const_cast<MDLocalVariable *>(N)) {}
487 operator MDLocalVariable *() const { return N; }
488 MDLocalVariable *operator->() const { return N; }
489 MDLocalVariable &operator*() const { return *N; }
496 DIExpression(const MDExpression *N = nullptr)
497 : N(const_cast<MDExpression *>(N)) {}
499 operator MDExpression *() const { return N; }
500 MDExpression *operator->() const { return N; }
501 MDExpression &operator*() const { return *N; }
508 DILocation(const MDLocation *N = nullptr) : N(const_cast<MDLocation *>(N)) {}
510 operator MDLocation *() const { return N; }
511 MDLocation *operator->() const { return N; }
512 MDLocation &operator*() const { return *N; }
515 class DIObjCProperty {
519 DIObjCProperty(const MDObjCProperty *N = nullptr)
520 : N(const_cast<MDObjCProperty *>(N)) {}
522 operator MDObjCProperty *() const { return N; }
523 MDObjCProperty *operator->() const { return N; }
524 MDObjCProperty &operator*() const { return *N; }
527 class DIImportedEntity {
531 DIImportedEntity(const MDImportedEntity *N = nullptr)
532 : N(const_cast<MDImportedEntity *>(N)) {}
534 operator DIDescriptor() const { return N; }
535 operator MDImportedEntity *() const { return N; }
536 MDImportedEntity *operator->() const { return N; }
537 MDImportedEntity &operator*() const { return *N; }
540 #define SIMPLIFY_DESCRIPTOR(DESC) \
541 template <> struct simplify_type<const DESC> { \
542 typedef Metadata *SimpleType; \
543 static SimpleType getSimplifiedValue(const DESC &DI) { return DI; } \
545 template <> struct simplify_type<DESC> : simplify_type<const DESC> {};
546 SIMPLIFY_DESCRIPTOR(DIDescriptor)
547 SIMPLIFY_DESCRIPTOR(DISubrange)
548 SIMPLIFY_DESCRIPTOR(DIEnumerator)
549 SIMPLIFY_DESCRIPTOR(DIScope)
550 SIMPLIFY_DESCRIPTOR(DIType)
551 SIMPLIFY_DESCRIPTOR(DIBasicType)
552 SIMPLIFY_DESCRIPTOR(DIDerivedType)
553 SIMPLIFY_DESCRIPTOR(DICompositeType)
554 SIMPLIFY_DESCRIPTOR(DISubroutineType)
555 SIMPLIFY_DESCRIPTOR(DIFile)
556 SIMPLIFY_DESCRIPTOR(DICompileUnit)
557 SIMPLIFY_DESCRIPTOR(DISubprogram)
558 SIMPLIFY_DESCRIPTOR(DILexicalBlock)
559 SIMPLIFY_DESCRIPTOR(DILexicalBlockFile)
560 SIMPLIFY_DESCRIPTOR(DINameSpace)
561 SIMPLIFY_DESCRIPTOR(DITemplateTypeParameter)
562 SIMPLIFY_DESCRIPTOR(DITemplateValueParameter)
563 SIMPLIFY_DESCRIPTOR(DIGlobalVariable)
564 SIMPLIFY_DESCRIPTOR(DIVariable)
565 SIMPLIFY_DESCRIPTOR(DIExpression)
566 SIMPLIFY_DESCRIPTOR(DILocation)
567 SIMPLIFY_DESCRIPTOR(DIObjCProperty)
568 SIMPLIFY_DESCRIPTOR(DIImportedEntity)
569 #undef SIMPLIFY_DESCRIPTOR
571 /// \brief Find subprogram that is enclosing this scope.
572 DISubprogram getDISubprogram(const MDNode *Scope);
574 /// \brief Find debug info for a given function.
575 /// \returns a valid DISubprogram, if found. Otherwise, it returns an empty
577 DISubprogram getDISubprogram(const Function *F);
579 /// \brief Find underlying composite type.
580 DICompositeType getDICompositeType(DIType T);
582 /// \brief Generate map by visiting all retained types.
583 DITypeIdentifierMap generateDITypeIdentifierMap(const NamedMDNode *CU_Nodes);
585 /// \brief Strip debug info in the module if it exists.
587 /// To do this, we remove all calls to the debugger intrinsics and any named
588 /// metadata for debugging. We also remove debug locations for instructions.
589 /// Return true if module is modified.
590 bool StripDebugInfo(Module &M);
591 bool stripDebugInfo(Function &F);
593 /// \brief Return Debug Info Metadata Version by checking module flags.
594 unsigned getDebugMetadataVersionFromModule(const Module &M);
596 /// \brief Utility to find all debug info in a module.
598 /// DebugInfoFinder tries to list all debug info MDNodes used in a module. To
599 /// list debug info MDNodes used by an instruction, DebugInfoFinder uses
600 /// processDeclare, processValue and processLocation to handle DbgDeclareInst,
601 /// DbgValueInst and DbgLoc attached to instructions. processModule will go
602 /// through all DICompileUnits in llvm.dbg.cu and list debug info MDNodes
604 class DebugInfoFinder {
606 DebugInfoFinder() : TypeMapInitialized(false) {}
608 /// \brief Process entire module and collect debug info anchors.
609 void processModule(const Module &M);
611 /// \brief Process DbgDeclareInst.
612 void processDeclare(const Module &M, const DbgDeclareInst *DDI);
613 /// \brief Process DbgValueInst.
614 void processValue(const Module &M, const DbgValueInst *DVI);
615 /// \brief Process DILocation.
616 void processLocation(const Module &M, DILocation Loc);
618 /// \brief Clear all lists.
622 void InitializeTypeMap(const Module &M);
624 void processType(DIType DT);
625 void processSubprogram(DISubprogram SP);
626 void processScope(DIScope Scope);
627 bool addCompileUnit(DICompileUnit CU);
628 bool addGlobalVariable(DIGlobalVariable DIG);
629 bool addSubprogram(DISubprogram SP);
630 bool addType(DIType DT);
631 bool addScope(DIScope Scope);
634 typedef SmallVectorImpl<DICompileUnit>::const_iterator compile_unit_iterator;
635 typedef SmallVectorImpl<DISubprogram>::const_iterator subprogram_iterator;
636 typedef SmallVectorImpl<DIGlobalVariable>::const_iterator
637 global_variable_iterator;
638 typedef SmallVectorImpl<DIType>::const_iterator type_iterator;
639 typedef SmallVectorImpl<DIScope>::const_iterator scope_iterator;
641 iterator_range<compile_unit_iterator> compile_units() const {
642 return iterator_range<compile_unit_iterator>(CUs.begin(), CUs.end());
645 iterator_range<subprogram_iterator> subprograms() const {
646 return iterator_range<subprogram_iterator>(SPs.begin(), SPs.end());
649 iterator_range<global_variable_iterator> global_variables() const {
650 return iterator_range<global_variable_iterator>(GVs.begin(), GVs.end());
653 iterator_range<type_iterator> types() const {
654 return iterator_range<type_iterator>(TYs.begin(), TYs.end());
657 iterator_range<scope_iterator> scopes() const {
658 return iterator_range<scope_iterator>(Scopes.begin(), Scopes.end());
661 unsigned compile_unit_count() const { return CUs.size(); }
662 unsigned global_variable_count() const { return GVs.size(); }
663 unsigned subprogram_count() const { return SPs.size(); }
664 unsigned type_count() const { return TYs.size(); }
665 unsigned scope_count() const { return Scopes.size(); }
668 SmallVector<DICompileUnit, 8> CUs;
669 SmallVector<DISubprogram, 8> SPs;
670 SmallVector<DIGlobalVariable, 8> GVs;
671 SmallVector<DIType, 8> TYs;
672 SmallVector<DIScope, 8> Scopes;
673 SmallPtrSet<MDNode *, 64> NodesSeen;
674 DITypeIdentifierMap TypeIdentifierMap;
676 /// \brief Specify if TypeIdentifierMap is initialized.
677 bool TypeMapInitialized;
680 DenseMap<const Function *, DISubprogram> makeSubprogramMap(const Module &M);
682 } // end namespace llvm