1 //===- llvm/IR/DebugInfoMetadata.h - Debug info metadata --------*- 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 // Declarations for metadata specific to debug info.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_IR_DEBUGINFOMETADATA_H
15 #define LLVM_IR_DEBUGINFOMETADATA_H
17 #include "llvm/IR/Metadata.h"
18 #include "llvm/Support/Dwarf.h"
20 // Helper macros for defining get() overrides.
21 #define DEFINE_MDNODE_GET_UNPACK_IMPL(...) __VA_ARGS__
22 #define DEFINE_MDNODE_GET_UNPACK(ARGS) DEFINE_MDNODE_GET_UNPACK_IMPL ARGS
23 #define DEFINE_MDNODE_GET(CLASS, FORMAL, ARGS) \
24 static CLASS *get(LLVMContext &Context, DEFINE_MDNODE_GET_UNPACK(FORMAL)) { \
25 return getImpl(Context, DEFINE_MDNODE_GET_UNPACK(ARGS), Uniqued); \
27 static CLASS *getIfExists(LLVMContext &Context, \
28 DEFINE_MDNODE_GET_UNPACK(FORMAL)) { \
29 return getImpl(Context, DEFINE_MDNODE_GET_UNPACK(ARGS), Uniqued, \
30 /* ShouldCreate */ false); \
32 static CLASS *getDistinct(LLVMContext &Context, \
33 DEFINE_MDNODE_GET_UNPACK(FORMAL)) { \
34 return getImpl(Context, DEFINE_MDNODE_GET_UNPACK(ARGS), Distinct); \
36 static Temp##CLASS getTemporary(LLVMContext &Context, \
37 DEFINE_MDNODE_GET_UNPACK(FORMAL)) { \
39 getImpl(Context, DEFINE_MDNODE_GET_UNPACK(ARGS), Temporary)); \
44 /// \brief Pointer union between a subclass of DebugNode and MDString.
46 /// \a MDCompositeType can be referenced via an \a MDString unique identifier.
47 /// This class allows some type safety in the face of that, requiring either a
48 /// node of a particular type or an \a MDString.
49 template <class T> class TypedDebugNodeRef {
50 const Metadata *MD = nullptr;
53 TypedDebugNodeRef() = default;
54 TypedDebugNodeRef(std::nullptr_t) {}
56 /// \brief Construct from a raw pointer.
57 explicit TypedDebugNodeRef(const Metadata *MD) : MD(MD) {
58 assert((!MD || isa<MDString>(MD) || isa<T>(MD)) && "Expected valid ref");
63 const TypedDebugNodeRef<U> &X,
64 typename std::enable_if<std::is_convertible<U *, T *>::value>::type * =
68 operator Metadata *() const { return const_cast<Metadata *>(MD); }
70 bool operator==(const TypedDebugNodeRef<T> &X) const { return MD == X.MD; };
71 bool operator!=(const TypedDebugNodeRef<T> &X) const { return MD != X.MD; };
73 /// \brief Create a reference.
75 /// Get a reference to \c N, using an \a MDString reference if available.
76 static TypedDebugNodeRef get(const T *N);
78 template <class MapTy> T *resolve(const MapTy &Map) const {
82 if (auto *Typed = dyn_cast<T>(MD))
83 return const_cast<T *>(Typed);
85 auto *S = cast<MDString>(MD);
87 assert(I != Map.end() && "Missing identifier in type map");
88 return cast<T>(I->second);
92 typedef TypedDebugNodeRef<DebugNode> DebugNodeRef;
93 typedef TypedDebugNodeRef<MDScope> MDScopeRef;
94 typedef TypedDebugNodeRef<MDType> MDTypeRef;
96 class MDTypeRefArray {
97 const MDTuple *N = nullptr;
100 MDTypeRefArray(const MDTuple *N) : N(N) {}
102 explicit operator bool() const { return get(); }
103 explicit operator MDTuple *() const { return get(); }
105 MDTuple *get() const { return const_cast<MDTuple *>(N); }
106 MDTuple *operator->() const { return get(); }
107 MDTuple &operator*() const { return *get(); }
109 // FIXME: Fix callers and remove condition on N.
110 unsigned size() const { return N ? N->getNumOperands() : 0u; }
111 MDTypeRef operator[](unsigned I) const { return MDTypeRef(N->getOperand(I)); }
113 class iterator : std::iterator<std::input_iterator_tag, MDTypeRef,
114 std::ptrdiff_t, void, MDTypeRef> {
115 MDNode::op_iterator I = nullptr;
118 iterator() = default;
119 explicit iterator(MDNode::op_iterator I) : I(I) {}
120 MDTypeRef operator*() const { return MDTypeRef(*I); }
121 iterator &operator++() {
125 iterator operator++(int) {
126 iterator Temp(*this);
130 bool operator==(const iterator &X) const { return I == X.I; }
131 bool operator!=(const iterator &X) const { return I != X.I; }
134 // FIXME: Fix callers and remove condition on N.
135 iterator begin() const { return N ? iterator(N->op_begin()) : iterator(); }
136 iterator end() const { return N ? iterator(N->op_end()) : iterator(); }
139 /// \brief Tagged DWARF-like metadata node.
141 /// A metadata node with a DWARF tag (i.e., a constant named \c DW_TAG_*,
142 /// defined in llvm/Support/Dwarf.h). Called \a DebugNode because it's
143 /// potentially used for non-DWARF output.
144 class DebugNode : public MDNode {
145 friend class LLVMContextImpl;
149 DebugNode(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Tag,
150 ArrayRef<Metadata *> Ops1, ArrayRef<Metadata *> Ops2 = None)
151 : MDNode(C, ID, Storage, Ops1, Ops2) {
152 assert(Tag < 1u << 16);
153 SubclassData16 = Tag;
155 ~DebugNode() = default;
157 template <class Ty> Ty *getOperandAs(unsigned I) const {
158 return cast_or_null<Ty>(getOperand(I));
161 StringRef getStringOperand(unsigned I) const {
162 if (auto *S = getOperandAs<MDString>(I))
163 return S->getString();
167 static MDString *getCanonicalMDString(LLVMContext &Context, StringRef S) {
170 return MDString::get(Context, S);
174 unsigned getTag() const { return SubclassData16; }
176 /// \brief Debug info flags.
178 /// The three accessibility flags are mutually exclusive and rolled together
179 /// in the first two bits.
181 #define HANDLE_DI_FLAG(ID, NAME) Flag##NAME = ID,
182 #include "llvm/IR/DebugInfoFlags.def"
183 FlagAccessibility = FlagPrivate | FlagProtected | FlagPublic
186 static unsigned getFlag(StringRef Flag);
187 static const char *getFlagString(unsigned Flag);
189 /// \brief Split up a flags bitfield.
191 /// Split \c Flags into \c SplitFlags, a vector of its components. Returns
192 /// any remaining (unrecognized) bits.
193 static unsigned splitFlags(unsigned Flags,
194 SmallVectorImpl<unsigned> &SplitFlags);
196 DebugNodeRef getRef() const { return DebugNodeRef::get(this); }
198 static bool classof(const Metadata *MD) {
199 switch (MD->getMetadataID()) {
202 case GenericDebugNodeKind:
204 case MDEnumeratorKind:
205 case MDBasicTypeKind:
206 case MDDerivedTypeKind:
207 case MDCompositeTypeKind:
208 case MDSubroutineTypeKind:
210 case MDCompileUnitKind:
211 case MDSubprogramKind:
212 case MDLexicalBlockKind:
213 case MDLexicalBlockFileKind:
214 case MDNamespaceKind:
215 case MDTemplateTypeParameterKind:
216 case MDTemplateValueParameterKind:
217 case MDGlobalVariableKind:
218 case MDLocalVariableKind:
219 case MDObjCPropertyKind:
220 case MDImportedEntityKind:
227 struct simplify_type<const TypedDebugNodeRef<T>> {
228 typedef Metadata *SimpleType;
229 static SimpleType getSimplifiedValue(const TypedDebugNodeRef<T> &MD) {
235 struct simplify_type<TypedDebugNodeRef<T>>
236 : simplify_type<const TypedDebugNodeRef<T>> {};
238 /// \brief Generic tagged DWARF-like metadata node.
240 /// An un-specialized DWARF-like metadata node. The first operand is a
241 /// (possibly empty) null-separated \a MDString header that contains arbitrary
242 /// fields. The remaining operands are \a dwarf_operands(), and are pointers
243 /// to other metadata.
244 class GenericDebugNode : public DebugNode {
245 friend class LLVMContextImpl;
248 GenericDebugNode(LLVMContext &C, StorageType Storage, unsigned Hash,
249 unsigned Tag, ArrayRef<Metadata *> Ops1,
250 ArrayRef<Metadata *> Ops2)
251 : DebugNode(C, GenericDebugNodeKind, Storage, Tag, Ops1, Ops2) {
254 ~GenericDebugNode() { dropAllReferences(); }
256 void setHash(unsigned Hash) { SubclassData32 = Hash; }
257 void recalculateHash();
259 static GenericDebugNode *getImpl(LLVMContext &Context, unsigned Tag,
261 ArrayRef<Metadata *> DwarfOps,
263 bool ShouldCreate = true) {
264 return getImpl(Context, Tag, getCanonicalMDString(Context, Header),
265 DwarfOps, Storage, ShouldCreate);
268 static GenericDebugNode *getImpl(LLVMContext &Context, unsigned Tag,
270 ArrayRef<Metadata *> DwarfOps,
272 bool ShouldCreate = true);
274 TempGenericDebugNode cloneImpl() const {
276 getContext(), getTag(), getHeader(),
277 SmallVector<Metadata *, 4>(dwarf_op_begin(), dwarf_op_end()));
281 unsigned getHash() const { return SubclassData32; }
283 DEFINE_MDNODE_GET(GenericDebugNode, (unsigned Tag, StringRef Header,
284 ArrayRef<Metadata *> DwarfOps),
285 (Tag, Header, DwarfOps))
286 DEFINE_MDNODE_GET(GenericDebugNode, (unsigned Tag, MDString *Header,
287 ArrayRef<Metadata *> DwarfOps),
288 (Tag, Header, DwarfOps))
290 /// \brief Return a (temporary) clone of this.
291 TempGenericDebugNode clone() const { return cloneImpl(); }
293 unsigned getTag() const { return SubclassData16; }
294 StringRef getHeader() const { return getStringOperand(0); }
296 op_iterator dwarf_op_begin() const { return op_begin() + 1; }
297 op_iterator dwarf_op_end() const { return op_end(); }
298 op_range dwarf_operands() const {
299 return op_range(dwarf_op_begin(), dwarf_op_end());
302 unsigned getNumDwarfOperands() const { return getNumOperands() - 1; }
303 const MDOperand &getDwarfOperand(unsigned I) const {
304 return getOperand(I + 1);
306 void replaceDwarfOperandWith(unsigned I, Metadata *New) {
307 replaceOperandWith(I + 1, New);
310 static bool classof(const Metadata *MD) {
311 return MD->getMetadataID() == GenericDebugNodeKind;
315 /// \brief Array subrange.
317 /// TODO: Merge into node for DW_TAG_array_type, which should have a custom
319 class MDSubrange : public DebugNode {
320 friend class LLVMContextImpl;
326 MDSubrange(LLVMContext &C, StorageType Storage, int64_t Count,
328 : DebugNode(C, MDSubrangeKind, Storage, dwarf::DW_TAG_subrange_type,
330 Count(Count), LowerBound(LowerBound) {}
331 ~MDSubrange() = default;
333 static MDSubrange *getImpl(LLVMContext &Context, int64_t Count,
334 int64_t LowerBound, StorageType Storage,
335 bool ShouldCreate = true);
337 TempMDSubrange cloneImpl() const {
338 return getTemporary(getContext(), getCount(), getLowerBound());
342 DEFINE_MDNODE_GET(MDSubrange, (int64_t Count, int64_t LowerBound = 0),
345 TempMDSubrange clone() const { return cloneImpl(); }
347 int64_t getLowerBound() const { return LowerBound; }
348 int64_t getCount() const { return Count; }
350 static bool classof(const Metadata *MD) {
351 return MD->getMetadataID() == MDSubrangeKind;
355 /// \brief Enumeration value.
357 /// TODO: Add a pointer to the context (DW_TAG_enumeration_type) once that no
358 /// longer creates a type cycle.
359 class MDEnumerator : public DebugNode {
360 friend class LLVMContextImpl;
365 MDEnumerator(LLVMContext &C, StorageType Storage, int64_t Value,
366 ArrayRef<Metadata *> Ops)
367 : DebugNode(C, MDEnumeratorKind, Storage, dwarf::DW_TAG_enumerator, Ops),
369 ~MDEnumerator() = default;
371 static MDEnumerator *getImpl(LLVMContext &Context, int64_t Value,
372 StringRef Name, StorageType Storage,
373 bool ShouldCreate = true) {
374 return getImpl(Context, Value, getCanonicalMDString(Context, Name), Storage,
377 static MDEnumerator *getImpl(LLVMContext &Context, int64_t Value,
378 MDString *Name, StorageType Storage,
379 bool ShouldCreate = true);
381 TempMDEnumerator cloneImpl() const {
382 return getTemporary(getContext(), getValue(), getName());
386 DEFINE_MDNODE_GET(MDEnumerator, (int64_t Value, StringRef Name),
388 DEFINE_MDNODE_GET(MDEnumerator, (int64_t Value, MDString *Name),
391 TempMDEnumerator clone() const { return cloneImpl(); }
393 int64_t getValue() const { return Value; }
394 StringRef getName() const { return getStringOperand(0); }
396 MDString *getRawName() const { return getOperandAs<MDString>(0); }
398 static bool classof(const Metadata *MD) {
399 return MD->getMetadataID() == MDEnumeratorKind;
403 /// \brief Base class for scope-like contexts.
405 /// Base class for lexical scopes and types (which are also declaration
408 /// TODO: Separate the concepts of declaration contexts and lexical scopes.
409 class MDScope : public DebugNode {
411 MDScope(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Tag,
412 ArrayRef<Metadata *> Ops)
413 : DebugNode(C, ID, Storage, Tag, Ops) {}
414 ~MDScope() = default;
417 MDFile *getFile() const { return cast_or_null<MDFile>(getRawFile()); }
419 inline StringRef getFilename() const;
420 inline StringRef getDirectory() const;
422 StringRef getName() const;
423 MDScopeRef getScope() const;
425 /// \brief Return the raw underlying file.
427 /// An \a MDFile is an \a MDScope, but it doesn't point at a separate file
428 /// (it\em is the file). If \c this is an \a MDFile, we need to return \c
429 /// this. Otherwise, return the first operand, which is where all other
430 /// subclasses store their file pointer.
431 Metadata *getRawFile() const {
432 return isa<MDFile>(this) ? const_cast<MDScope *>(this)
433 : static_cast<Metadata *>(getOperand(0));
436 MDScopeRef getRef() const { return MDScopeRef::get(this); }
438 static bool classof(const Metadata *MD) {
439 switch (MD->getMetadataID()) {
442 case MDBasicTypeKind:
443 case MDDerivedTypeKind:
444 case MDCompositeTypeKind:
445 case MDSubroutineTypeKind:
447 case MDCompileUnitKind:
448 case MDSubprogramKind:
449 case MDLexicalBlockKind:
450 case MDLexicalBlockFileKind:
451 case MDNamespaceKind:
459 /// TODO: Merge with directory/file node (including users).
460 /// TODO: Canonicalize paths on creation.
461 class MDFile : public MDScope {
462 friend class LLVMContextImpl;
465 MDFile(LLVMContext &C, StorageType Storage, ArrayRef<Metadata *> Ops)
466 : MDScope(C, MDFileKind, Storage, dwarf::DW_TAG_file_type, Ops) {}
469 static MDFile *getImpl(LLVMContext &Context, StringRef Filename,
470 StringRef Directory, StorageType Storage,
471 bool ShouldCreate = true) {
472 return getImpl(Context, getCanonicalMDString(Context, Filename),
473 getCanonicalMDString(Context, Directory), Storage,
476 static MDFile *getImpl(LLVMContext &Context, MDString *Filename,
477 MDString *Directory, StorageType Storage,
478 bool ShouldCreate = true);
480 TempMDFile cloneImpl() const {
481 return getTemporary(getContext(), getFilename(), getDirectory());
485 DEFINE_MDNODE_GET(MDFile, (StringRef Filename, StringRef Directory),
486 (Filename, Directory))
487 DEFINE_MDNODE_GET(MDFile, (MDString * Filename, MDString *Directory),
488 (Filename, Directory))
490 TempMDFile clone() const { return cloneImpl(); }
492 StringRef getFilename() const { return getStringOperand(0); }
493 StringRef getDirectory() const { return getStringOperand(1); }
495 MDString *getRawFilename() const { return getOperandAs<MDString>(0); }
496 MDString *getRawDirectory() const { return getOperandAs<MDString>(1); }
498 static bool classof(const Metadata *MD) {
499 return MD->getMetadataID() == MDFileKind;
503 StringRef MDScope::getFilename() const {
504 if (auto *F = getFile())
505 return F->getFilename();
509 StringRef MDScope::getDirectory() const {
510 if (auto *F = getFile())
511 return F->getDirectory();
515 /// \brief Base class for types.
517 /// TODO: Remove the hardcoded name and context, since many types don't use
519 /// TODO: Split up flags.
520 class MDType : public MDScope {
524 uint64_t AlignInBits;
525 uint64_t OffsetInBits;
528 MDType(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Tag,
529 unsigned Line, uint64_t SizeInBits, uint64_t AlignInBits,
530 uint64_t OffsetInBits, unsigned Flags, ArrayRef<Metadata *> Ops)
531 : MDScope(C, ID, Storage, Tag, Ops), Line(Line), Flags(Flags),
532 SizeInBits(SizeInBits), AlignInBits(AlignInBits),
533 OffsetInBits(OffsetInBits) {}
537 TempMDType clone() const {
538 return TempMDType(cast<MDType>(MDNode::clone().release()));
541 unsigned getLine() const { return Line; }
542 uint64_t getSizeInBits() const { return SizeInBits; }
543 uint64_t getAlignInBits() const { return AlignInBits; }
544 uint64_t getOffsetInBits() const { return OffsetInBits; }
545 unsigned getFlags() const { return Flags; }
547 MDScopeRef getScope() const { return MDScopeRef(getRawScope()); }
548 StringRef getName() const { return getStringOperand(2); }
551 Metadata *getRawScope() const { return getOperand(1); }
552 MDString *getRawName() const { return getOperandAs<MDString>(2); }
554 void setFlags(unsigned NewFlags) {
555 assert(!isUniqued() && "Cannot set flags on uniqued nodes");
559 bool isPrivate() const {
560 return (getFlags() & FlagAccessibility) == FlagPrivate;
562 bool isProtected() const {
563 return (getFlags() & FlagAccessibility) == FlagProtected;
565 bool isPublic() const {
566 return (getFlags() & FlagAccessibility) == FlagPublic;
568 bool isForwardDecl() const { return getFlags() & FlagFwdDecl; }
569 bool isAppleBlockExtension() const { return getFlags() & FlagAppleBlock; }
570 bool isBlockByrefStruct() const { return getFlags() & FlagBlockByrefStruct; }
571 bool isVirtual() const { return getFlags() & FlagVirtual; }
572 bool isArtificial() const { return getFlags() & FlagArtificial; }
573 bool isObjectPointer() const { return getFlags() & FlagObjectPointer; }
574 bool isObjcClassComplete() const {
575 return getFlags() & FlagObjcClassComplete;
577 bool isVector() const { return getFlags() & FlagVector; }
578 bool isStaticMember() const { return getFlags() & FlagStaticMember; }
579 bool isLValueReference() const { return getFlags() & FlagLValueReference; }
580 bool isRValueReference() const { return getFlags() & FlagRValueReference; }
582 MDTypeRef getRef() const { return MDTypeRef::get(this); }
584 static bool classof(const Metadata *MD) {
585 switch (MD->getMetadataID()) {
588 case MDBasicTypeKind:
589 case MDDerivedTypeKind:
590 case MDCompositeTypeKind:
591 case MDSubroutineTypeKind:
597 /// \brief Basic type.
599 /// TODO: Split out DW_TAG_unspecified_type.
600 /// TODO: Drop unused accessors.
601 class MDBasicType : public MDType {
602 friend class LLVMContextImpl;
607 MDBasicType(LLVMContext &C, StorageType Storage, unsigned Tag,
608 uint64_t SizeInBits, uint64_t AlignInBits, unsigned Encoding,
609 ArrayRef<Metadata *> Ops)
610 : MDType(C, MDBasicTypeKind, Storage, Tag, 0, SizeInBits, AlignInBits, 0,
612 Encoding(Encoding) {}
613 ~MDBasicType() = default;
615 static MDBasicType *getImpl(LLVMContext &Context, unsigned Tag,
616 StringRef Name, uint64_t SizeInBits,
617 uint64_t AlignInBits, unsigned Encoding,
618 StorageType Storage, bool ShouldCreate = true) {
619 return getImpl(Context, Tag, getCanonicalMDString(Context, Name),
620 SizeInBits, AlignInBits, Encoding, Storage, ShouldCreate);
622 static MDBasicType *getImpl(LLVMContext &Context, unsigned Tag,
623 MDString *Name, uint64_t SizeInBits,
624 uint64_t AlignInBits, unsigned Encoding,
625 StorageType Storage, bool ShouldCreate = true);
627 TempMDBasicType cloneImpl() const {
628 return getTemporary(getContext(), getTag(), getName(), getSizeInBits(),
629 getAlignInBits(), getEncoding());
633 DEFINE_MDNODE_GET(MDBasicType, (unsigned Tag, StringRef Name),
634 (Tag, Name, 0, 0, 0))
635 DEFINE_MDNODE_GET(MDBasicType,
636 (unsigned Tag, StringRef Name, uint64_t SizeInBits,
637 uint64_t AlignInBits, unsigned Encoding),
638 (Tag, Name, SizeInBits, AlignInBits, Encoding))
639 DEFINE_MDNODE_GET(MDBasicType,
640 (unsigned Tag, MDString *Name, uint64_t SizeInBits,
641 uint64_t AlignInBits, unsigned Encoding),
642 (Tag, Name, SizeInBits, AlignInBits, Encoding))
644 TempMDBasicType clone() const { return cloneImpl(); }
646 unsigned getEncoding() const { return Encoding; }
648 static bool classof(const Metadata *MD) {
649 return MD->getMetadataID() == MDBasicTypeKind;
653 /// \brief Base class for MDDerivedType and MDCompositeType.
655 /// TODO: Delete; they're not really related.
656 class MDDerivedTypeBase : public MDType {
658 MDDerivedTypeBase(LLVMContext &C, unsigned ID, StorageType Storage,
659 unsigned Tag, unsigned Line, uint64_t SizeInBits,
660 uint64_t AlignInBits, uint64_t OffsetInBits, unsigned Flags,
661 ArrayRef<Metadata *> Ops)
662 : MDType(C, ID, Storage, Tag, Line, SizeInBits, AlignInBits, OffsetInBits,
664 ~MDDerivedTypeBase() = default;
667 MDTypeRef getBaseType() const { return MDTypeRef(getRawBaseType()); }
668 Metadata *getRawBaseType() const { return getOperand(3); }
670 static bool classof(const Metadata *MD) {
671 return MD->getMetadataID() == MDDerivedTypeKind ||
672 MD->getMetadataID() == MDCompositeTypeKind ||
673 MD->getMetadataID() == MDSubroutineTypeKind;
677 /// \brief Derived types.
679 /// This includes qualified types, pointers, references, friends, typedefs, and
682 /// TODO: Split out members (inheritance, fields, methods, etc.).
683 class MDDerivedType : public MDDerivedTypeBase {
684 friend class LLVMContextImpl;
687 MDDerivedType(LLVMContext &C, StorageType Storage, unsigned Tag,
688 unsigned Line, uint64_t SizeInBits, uint64_t AlignInBits,
689 uint64_t OffsetInBits, unsigned Flags, ArrayRef<Metadata *> Ops)
690 : MDDerivedTypeBase(C, MDDerivedTypeKind, Storage, Tag, Line, SizeInBits,
691 AlignInBits, OffsetInBits, Flags, Ops) {}
692 ~MDDerivedType() = default;
694 static MDDerivedType *getImpl(LLVMContext &Context, unsigned Tag,
695 StringRef Name, MDFile *File, unsigned Line,
696 MDScopeRef Scope, MDTypeRef BaseType,
697 uint64_t SizeInBits, uint64_t AlignInBits,
698 uint64_t OffsetInBits, unsigned Flags,
699 Metadata *ExtraData, StorageType Storage,
700 bool ShouldCreate = true) {
701 return getImpl(Context, Tag, getCanonicalMDString(Context, Name), File,
702 Line, Scope, BaseType, SizeInBits, AlignInBits, OffsetInBits,
703 Flags, ExtraData, Storage, ShouldCreate);
705 static MDDerivedType *getImpl(LLVMContext &Context, unsigned Tag,
706 MDString *Name, Metadata *File, unsigned Line,
707 Metadata *Scope, Metadata *BaseType,
708 uint64_t SizeInBits, uint64_t AlignInBits,
709 uint64_t OffsetInBits, unsigned Flags,
710 Metadata *ExtraData, StorageType Storage,
711 bool ShouldCreate = true);
713 TempMDDerivedType cloneImpl() const {
714 return getTemporary(getContext(), getTag(), getName(), getFile(), getLine(),
715 getScope(), getBaseType(), getSizeInBits(),
716 getAlignInBits(), getOffsetInBits(), getFlags(),
721 DEFINE_MDNODE_GET(MDDerivedType,
722 (unsigned Tag, MDString *Name, Metadata *File,
723 unsigned Line, Metadata *Scope, Metadata *BaseType,
724 uint64_t SizeInBits, uint64_t AlignInBits,
725 uint64_t OffsetInBits, unsigned Flags,
726 Metadata *ExtraData = nullptr),
727 (Tag, Name, File, Line, Scope, BaseType, SizeInBits,
728 AlignInBits, OffsetInBits, Flags, ExtraData))
729 DEFINE_MDNODE_GET(MDDerivedType,
730 (unsigned Tag, StringRef Name, MDFile *File, unsigned Line,
731 MDScopeRef Scope, MDTypeRef BaseType, uint64_t SizeInBits,
732 uint64_t AlignInBits, uint64_t OffsetInBits,
733 unsigned Flags, Metadata *ExtraData = nullptr),
734 (Tag, Name, File, Line, Scope, BaseType, SizeInBits,
735 AlignInBits, OffsetInBits, Flags, ExtraData))
737 TempMDDerivedType clone() const { return cloneImpl(); }
739 /// \brief Get extra data associated with this derived type.
741 /// Class type for pointer-to-members, objective-c property node for ivars,
742 /// or global constant wrapper for static members.
744 /// TODO: Separate out types that need this extra operand: pointer-to-member
745 /// types and member fields (static members and ivars).
746 Metadata *getExtraData() const { return getRawExtraData(); }
747 Metadata *getRawExtraData() const { return getOperand(4); }
749 /// \brief Get casted version of extra data.
751 MDTypeRef getClassType() const {
752 assert(getTag() == dwarf::DW_TAG_ptr_to_member_type);
753 return MDTypeRef(getExtraData());
755 MDObjCProperty *getObjCProperty() const {
756 return dyn_cast_or_null<MDObjCProperty>(getExtraData());
758 Constant *getConstant() const {
759 assert(getTag() == dwarf::DW_TAG_member && isStaticMember());
760 if (auto *C = cast_or_null<ConstantAsMetadata>(getExtraData()))
761 return C->getValue();
766 static bool classof(const Metadata *MD) {
767 return MD->getMetadataID() == MDDerivedTypeKind;
771 /// \brief Base class for MDCompositeType and MDSubroutineType.
773 /// TODO: Delete; they're not really related.
774 class MDCompositeTypeBase : public MDDerivedTypeBase {
775 unsigned RuntimeLang;
778 MDCompositeTypeBase(LLVMContext &C, unsigned ID, StorageType Storage,
779 unsigned Tag, unsigned Line, unsigned RuntimeLang,
780 uint64_t SizeInBits, uint64_t AlignInBits,
781 uint64_t OffsetInBits, unsigned Flags,
782 ArrayRef<Metadata *> Ops)
783 : MDDerivedTypeBase(C, ID, Storage, Tag, Line, SizeInBits, AlignInBits,
784 OffsetInBits, Flags, Ops),
785 RuntimeLang(RuntimeLang) {}
786 ~MDCompositeTypeBase() = default;
789 DebugNodeArray getElements() const {
790 return cast_or_null<MDTuple>(getRawElements());
792 MDTypeRef getVTableHolder() const { return MDTypeRef(getRawVTableHolder()); }
793 MDTemplateParameterArray getTemplateParams() const {
794 return cast_or_null<MDTuple>(getRawTemplateParams());
796 StringRef getIdentifier() const { return getStringOperand(7); }
797 unsigned getRuntimeLang() const { return RuntimeLang; }
799 Metadata *getRawElements() const { return getOperand(4); }
800 Metadata *getRawVTableHolder() const { return getOperand(5); }
801 Metadata *getRawTemplateParams() const { return getOperand(6); }
802 MDString *getRawIdentifier() const { return getOperandAs<MDString>(7); }
804 /// \brief Replace operands.
806 /// If this \a isUniqued() and not \a isResolved(), on a uniquing collision
807 /// this will be RAUW'ed and deleted. Use a \a TrackingMDRef to keep track
808 /// of its movement if necessary.
810 void replaceElements(DebugNodeArray Elements) {
812 for (DebugNode *Op : getElements())
813 assert(std::find(Elements->op_begin(), Elements->op_end(), Op) &&
814 "Lost a member during member list replacement");
816 replaceOperandWith(4, Elements.get());
818 void replaceVTableHolder(MDTypeRef VTableHolder) {
819 replaceOperandWith(5, VTableHolder);
821 void replaceTemplateParams(MDTemplateParameterArray TemplateParams) {
822 replaceOperandWith(6, TemplateParams.get());
826 static bool classof(const Metadata *MD) {
827 return MD->getMetadataID() == MDCompositeTypeKind ||
828 MD->getMetadataID() == MDSubroutineTypeKind;
832 /// \brief Composite types.
834 /// TODO: Detach from DerivedTypeBase (split out MDEnumType?).
835 /// TODO: Create a custom, unrelated node for DW_TAG_array_type.
836 class MDCompositeType : public MDCompositeTypeBase {
837 friend class LLVMContextImpl;
840 MDCompositeType(LLVMContext &C, StorageType Storage, unsigned Tag,
841 unsigned Line, unsigned RuntimeLang, uint64_t SizeInBits,
842 uint64_t AlignInBits, uint64_t OffsetInBits, unsigned Flags,
843 ArrayRef<Metadata *> Ops)
844 : MDCompositeTypeBase(C, MDCompositeTypeKind, Storage, Tag, Line,
845 RuntimeLang, SizeInBits, AlignInBits, OffsetInBits,
847 ~MDCompositeType() = default;
849 static MDCompositeType *
850 getImpl(LLVMContext &Context, unsigned Tag, StringRef Name, Metadata *File,
851 unsigned Line, MDScopeRef Scope, MDTypeRef BaseType,
852 uint64_t SizeInBits, uint64_t AlignInBits, uint64_t OffsetInBits,
853 uint64_t Flags, DebugNodeArray Elements, unsigned RuntimeLang,
854 MDTypeRef VTableHolder, MDTemplateParameterArray TemplateParams,
855 StringRef Identifier, StorageType Storage, bool ShouldCreate = true) {
857 Context, Tag, getCanonicalMDString(Context, Name), File, Line, Scope,
858 BaseType, SizeInBits, AlignInBits, OffsetInBits, Flags, Elements.get(),
859 RuntimeLang, VTableHolder, TemplateParams.get(),
860 getCanonicalMDString(Context, Identifier), Storage, ShouldCreate);
862 static MDCompositeType *
863 getImpl(LLVMContext &Context, unsigned Tag, MDString *Name, Metadata *File,
864 unsigned Line, Metadata *Scope, Metadata *BaseType,
865 uint64_t SizeInBits, uint64_t AlignInBits, uint64_t OffsetInBits,
866 unsigned Flags, Metadata *Elements, unsigned RuntimeLang,
867 Metadata *VTableHolder, Metadata *TemplateParams,
868 MDString *Identifier, StorageType Storage, bool ShouldCreate = true);
870 TempMDCompositeType cloneImpl() const {
871 return getTemporary(getContext(), getTag(), getName(), getFile(), getLine(),
872 getScope(), getBaseType(), getSizeInBits(),
873 getAlignInBits(), getOffsetInBits(), getFlags(),
874 getElements(), getRuntimeLang(), getVTableHolder(),
875 getTemplateParams(), getIdentifier());
879 DEFINE_MDNODE_GET(MDCompositeType,
880 (unsigned Tag, StringRef Name, MDFile *File, unsigned Line,
881 MDScopeRef Scope, MDTypeRef BaseType, uint64_t SizeInBits,
882 uint64_t AlignInBits, uint64_t OffsetInBits,
883 unsigned Flags, DebugNodeArray Elements,
884 unsigned RuntimeLang, MDTypeRef VTableHolder,
885 MDTemplateParameterArray TemplateParams = nullptr,
886 StringRef Identifier = ""),
887 (Tag, Name, File, Line, Scope, BaseType, SizeInBits,
888 AlignInBits, OffsetInBits, Flags, Elements, RuntimeLang,
889 VTableHolder, TemplateParams, Identifier))
890 DEFINE_MDNODE_GET(MDCompositeType,
891 (unsigned Tag, MDString *Name, Metadata *File,
892 unsigned Line, Metadata *Scope, Metadata *BaseType,
893 uint64_t SizeInBits, uint64_t AlignInBits,
894 uint64_t OffsetInBits, unsigned Flags, Metadata *Elements,
895 unsigned RuntimeLang, Metadata *VTableHolder,
896 Metadata *TemplateParams = nullptr,
897 MDString *Identifier = nullptr),
898 (Tag, Name, File, Line, Scope, BaseType, SizeInBits,
899 AlignInBits, OffsetInBits, Flags, Elements, RuntimeLang,
900 VTableHolder, TemplateParams, Identifier))
902 TempMDCompositeType clone() const { return cloneImpl(); }
904 static bool classof(const Metadata *MD) {
905 return MD->getMetadataID() == MDCompositeTypeKind;
909 template <class T> TypedDebugNodeRef<T> TypedDebugNodeRef<T>::get(const T *N) {
911 if (auto *Composite = dyn_cast<MDCompositeType>(N))
912 if (auto *S = Composite->getRawIdentifier())
913 return TypedDebugNodeRef<T>(S);
914 return TypedDebugNodeRef<T>(N);
917 /// \brief Type array for a subprogram.
919 /// TODO: Detach from CompositeType, and fold the array of types in directly
921 class MDSubroutineType : public MDCompositeTypeBase {
922 friend class LLVMContextImpl;
925 MDSubroutineType(LLVMContext &C, StorageType Storage, unsigned Flags,
926 ArrayRef<Metadata *> Ops)
927 : MDCompositeTypeBase(C, MDSubroutineTypeKind, Storage,
928 dwarf::DW_TAG_subroutine_type, 0, 0, 0, 0, 0, Flags,
930 ~MDSubroutineType() = default;
932 static MDSubroutineType *getImpl(LLVMContext &Context, unsigned Flags,
933 MDTypeRefArray TypeArray,
935 bool ShouldCreate = true) {
936 return getImpl(Context, Flags, TypeArray.get(), Storage, ShouldCreate);
938 static MDSubroutineType *getImpl(LLVMContext &Context, unsigned Flags,
939 Metadata *TypeArray, StorageType Storage,
940 bool ShouldCreate = true);
942 TempMDSubroutineType cloneImpl() const {
943 return getTemporary(getContext(), getFlags(), getTypeArray());
947 DEFINE_MDNODE_GET(MDSubroutineType,
948 (unsigned Flags, MDTypeRefArray TypeArray),
950 DEFINE_MDNODE_GET(MDSubroutineType, (unsigned Flags, Metadata *TypeArray),
953 TempMDSubroutineType clone() const { return cloneImpl(); }
955 MDTypeRefArray getTypeArray() const {
956 return cast_or_null<MDTuple>(getRawTypeArray());
958 Metadata *getRawTypeArray() const { return getRawElements(); }
960 static bool classof(const Metadata *MD) {
961 return MD->getMetadataID() == MDSubroutineTypeKind;
965 /// \brief Compile unit.
966 class MDCompileUnit : public MDScope {
967 friend class LLVMContextImpl;
970 unsigned SourceLanguage;
972 unsigned RuntimeVersion;
973 unsigned EmissionKind;
975 MDCompileUnit(LLVMContext &C, StorageType Storage, unsigned SourceLanguage,
976 bool IsOptimized, unsigned RuntimeVersion,
977 unsigned EmissionKind, ArrayRef<Metadata *> Ops)
978 : MDScope(C, MDCompileUnitKind, Storage, dwarf::DW_TAG_compile_unit, Ops),
979 SourceLanguage(SourceLanguage), IsOptimized(IsOptimized),
980 RuntimeVersion(RuntimeVersion), EmissionKind(EmissionKind) {}
981 ~MDCompileUnit() = default;
983 static MDCompileUnit *
984 getImpl(LLVMContext &Context, unsigned SourceLanguage, MDFile *File,
985 StringRef Producer, bool IsOptimized, StringRef Flags,
986 unsigned RuntimeVersion, StringRef SplitDebugFilename,
987 unsigned EmissionKind, MDCompositeTypeArray EnumTypes,
988 MDTypeArray RetainedTypes, MDSubprogramArray Subprograms,
989 MDGlobalVariableArray GlobalVariables,
990 MDImportedEntityArray ImportedEntities, StorageType Storage,
991 bool ShouldCreate = true) {
993 Context, SourceLanguage, File, getCanonicalMDString(Context, Producer),
994 IsOptimized, getCanonicalMDString(Context, Flags), RuntimeVersion,
995 getCanonicalMDString(Context, SplitDebugFilename), EmissionKind,
996 EnumTypes.get(), RetainedTypes.get(), Subprograms.get(),
997 GlobalVariables.get(), ImportedEntities.get(), Storage, ShouldCreate);
999 static MDCompileUnit *
1000 getImpl(LLVMContext &Context, unsigned SourceLanguage, Metadata *File,
1001 MDString *Producer, bool IsOptimized, MDString *Flags,
1002 unsigned RuntimeVersion, MDString *SplitDebugFilename,
1003 unsigned EmissionKind, Metadata *EnumTypes, Metadata *RetainedTypes,
1004 Metadata *Subprograms, Metadata *GlobalVariables,
1005 Metadata *ImportedEntities, StorageType Storage,
1006 bool ShouldCreate = true);
1008 TempMDCompileUnit cloneImpl() const {
1009 return getTemporary(
1010 getContext(), getSourceLanguage(), getFile(), getProducer(),
1011 isOptimized(), getFlags(), getRuntimeVersion(), getSplitDebugFilename(),
1012 getEmissionKind(), getEnumTypes(), getRetainedTypes(), getSubprograms(),
1013 getGlobalVariables(), getImportedEntities());
1017 DEFINE_MDNODE_GET(MDCompileUnit,
1018 (unsigned SourceLanguage, MDFile *File, StringRef Producer,
1019 bool IsOptimized, StringRef Flags, unsigned RuntimeVersion,
1020 StringRef SplitDebugFilename, unsigned EmissionKind,
1021 MDCompositeTypeArray EnumTypes, MDTypeArray RetainedTypes,
1022 MDSubprogramArray Subprograms,
1023 MDGlobalVariableArray GlobalVariables,
1024 MDImportedEntityArray ImportedEntities),
1025 (SourceLanguage, File, Producer, IsOptimized, Flags,
1026 RuntimeVersion, SplitDebugFilename, EmissionKind,
1027 EnumTypes, RetainedTypes, Subprograms, GlobalVariables,
1029 DEFINE_MDNODE_GET(MDCompileUnit,
1030 (unsigned SourceLanguage, Metadata *File,
1031 MDString *Producer, bool IsOptimized, MDString *Flags,
1032 unsigned RuntimeVersion, MDString *SplitDebugFilename,
1033 unsigned EmissionKind, Metadata *EnumTypes,
1034 Metadata *RetainedTypes, Metadata *Subprograms,
1035 Metadata *GlobalVariables, Metadata *ImportedEntities),
1036 (SourceLanguage, File, Producer, IsOptimized, Flags,
1037 RuntimeVersion, SplitDebugFilename, EmissionKind,
1038 EnumTypes, RetainedTypes, Subprograms, GlobalVariables,
1041 TempMDCompileUnit clone() const { return cloneImpl(); }
1043 unsigned getSourceLanguage() const { return SourceLanguage; }
1044 bool isOptimized() const { return IsOptimized; }
1045 unsigned getRuntimeVersion() const { return RuntimeVersion; }
1046 unsigned getEmissionKind() const { return EmissionKind; }
1047 StringRef getProducer() const { return getStringOperand(1); }
1048 StringRef getFlags() const { return getStringOperand(2); }
1049 StringRef getSplitDebugFilename() const { return getStringOperand(3); }
1050 MDCompositeTypeArray getEnumTypes() const {
1051 return cast_or_null<MDTuple>(getRawEnumTypes());
1053 MDTypeArray getRetainedTypes() const {
1054 return cast_or_null<MDTuple>(getRawRetainedTypes());
1056 MDSubprogramArray getSubprograms() const {
1057 return cast_or_null<MDTuple>(getRawSubprograms());
1059 MDGlobalVariableArray getGlobalVariables() const {
1060 return cast_or_null<MDTuple>(getRawGlobalVariables());
1062 MDImportedEntityArray getImportedEntities() const {
1063 return cast_or_null<MDTuple>(getRawImportedEntities());
1066 MDString *getRawProducer() const { return getOperandAs<MDString>(1); }
1067 MDString *getRawFlags() const { return getOperandAs<MDString>(2); }
1068 MDString *getRawSplitDebugFilename() const {
1069 return getOperandAs<MDString>(3);
1071 Metadata *getRawEnumTypes() const { return getOperand(4); }
1072 Metadata *getRawRetainedTypes() const { return getOperand(5); }
1073 Metadata *getRawSubprograms() const { return getOperand(6); }
1074 Metadata *getRawGlobalVariables() const { return getOperand(7); }
1075 Metadata *getRawImportedEntities() const { return getOperand(8); }
1077 /// \brief Replace arrays.
1079 /// If this \a isUniqued() and not \a isResolved(), it will be RAUW'ed and
1080 /// deleted on a uniquing collision. In practice, uniquing collisions on \a
1081 /// MDCompileUnit should be fairly rare.
1083 void replaceSubprograms(MDSubprogramArray N) {
1084 replaceOperandWith(6, N.get());
1086 void replaceGlobalVariables(MDGlobalVariableArray N) {
1087 replaceOperandWith(7, N.get());
1091 static bool classof(const Metadata *MD) {
1092 return MD->getMetadataID() == MDCompileUnitKind;
1096 /// \brief A scope for locals.
1098 /// A legal scope for lexical blocks, local variables, and debug info
1099 /// locations. Subclasses are \a MDSubprogram, \a MDLexicalBlock, and \a
1100 /// MDLexicalBlockFile.
1101 class MDLocalScope : public MDScope {
1103 MDLocalScope(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Tag,
1104 ArrayRef<Metadata *> Ops)
1105 : MDScope(C, ID, Storage, Tag, Ops) {}
1106 ~MDLocalScope() = default;
1109 /// \brief Get the subprogram for this scope.
1111 /// Return this if it's an \a MDSubprogram; otherwise, look up the scope
1113 MDSubprogram *getSubprogram() const;
1115 static bool classof(const Metadata *MD) {
1116 return MD->getMetadataID() == MDSubprogramKind ||
1117 MD->getMetadataID() == MDLexicalBlockKind ||
1118 MD->getMetadataID() == MDLexicalBlockFileKind;
1122 /// \brief Debug location.
1124 /// A debug location in source code, used for debug info and otherwise.
1125 class MDLocation : public MDNode {
1126 friend class LLVMContextImpl;
1127 friend class MDNode;
1129 MDLocation(LLVMContext &C, StorageType Storage, unsigned Line,
1130 unsigned Column, ArrayRef<Metadata *> MDs);
1131 ~MDLocation() { dropAllReferences(); }
1133 static MDLocation *getImpl(LLVMContext &Context, unsigned Line,
1134 unsigned Column, Metadata *Scope,
1135 Metadata *InlinedAt, StorageType Storage,
1136 bool ShouldCreate = true);
1137 static MDLocation *getImpl(LLVMContext &Context, unsigned Line,
1138 unsigned Column, MDLocalScope *Scope,
1139 MDLocation *InlinedAt, StorageType Storage,
1140 bool ShouldCreate = true) {
1141 return getImpl(Context, Line, Column, static_cast<Metadata *>(Scope),
1142 static_cast<Metadata *>(InlinedAt), Storage, ShouldCreate);
1145 TempMDLocation cloneImpl() const {
1146 return getTemporary(getContext(), getLine(), getColumn(), getScope(),
1150 // Disallow replacing operands.
1151 void replaceOperandWith(unsigned I, Metadata *New) = delete;
1154 DEFINE_MDNODE_GET(MDLocation,
1155 (unsigned Line, unsigned Column, Metadata *Scope,
1156 Metadata *InlinedAt = nullptr),
1157 (Line, Column, Scope, InlinedAt))
1158 DEFINE_MDNODE_GET(MDLocation,
1159 (unsigned Line, unsigned Column, MDLocalScope *Scope,
1160 MDLocation *InlinedAt = nullptr),
1161 (Line, Column, Scope, InlinedAt))
1163 /// \brief Return a (temporary) clone of this.
1164 TempMDLocation clone() const { return cloneImpl(); }
1166 unsigned getLine() const { return SubclassData32; }
1167 unsigned getColumn() const { return SubclassData16; }
1168 MDLocalScope *getScope() const {
1169 return cast<MDLocalScope>(getRawScope());
1171 MDLocation *getInlinedAt() const {
1172 return cast_or_null<MDLocation>(getRawInlinedAt());
1175 MDFile *getFile() const { return getScope()->getFile(); }
1176 StringRef getFilename() const { return getScope()->getFilename(); }
1177 StringRef getDirectory() const { return getScope()->getDirectory(); }
1179 /// \brief Get the scope where this is inlined.
1181 /// Walk through \a getInlinedAt() and return \a getScope() from the deepest
1183 MDLocalScope *getInlinedAtScope() const {
1184 if (auto *IA = getInlinedAt())
1185 return IA->getInlinedAtScope();
1189 /// \brief Check whether this can be discriminated from another location.
1191 /// Check \c this can be discriminated from \c RHS in a linetable entry.
1192 /// Scope and inlined-at chains are not recorded in the linetable, so they
1193 /// cannot be used to distinguish basic blocks.
1195 /// The current implementation is weaker than it should be, since it just
1196 /// checks filename and line.
1198 /// FIXME: Add a check for getDiscriminator().
1199 /// FIXME: Add a check for getColumn().
1200 /// FIXME: Change the getFilename() check to getFile() (or add one for
1201 /// getDirectory()).
1202 bool canDiscriminate(const MDLocation &RHS) const {
1203 return getFilename() != RHS.getFilename() || getLine() != RHS.getLine();
1206 Metadata *getRawScope() const { return getOperand(0); }
1207 Metadata *getRawInlinedAt() const {
1208 if (getNumOperands() == 2)
1209 return getOperand(1);
1213 static bool classof(const Metadata *MD) {
1214 return MD->getMetadataID() == MDLocationKind;
1218 /// \brief Subprogram description.
1220 /// TODO: Remove DisplayName. It's always equal to Name.
1221 /// TODO: Split up flags.
1222 class MDSubprogram : public MDLocalScope {
1223 friend class LLVMContextImpl;
1224 friend class MDNode;
1228 unsigned Virtuality;
1229 unsigned VirtualIndex;
1235 MDSubprogram(LLVMContext &C, StorageType Storage, unsigned Line,
1236 unsigned ScopeLine, unsigned Virtuality, unsigned VirtualIndex,
1237 unsigned Flags, bool IsLocalToUnit, bool IsDefinition,
1238 bool IsOptimized, ArrayRef<Metadata *> Ops)
1239 : MDLocalScope(C, MDSubprogramKind, Storage, dwarf::DW_TAG_subprogram,
1241 Line(Line), ScopeLine(ScopeLine), Virtuality(Virtuality),
1242 VirtualIndex(VirtualIndex), Flags(Flags), IsLocalToUnit(IsLocalToUnit),
1243 IsDefinition(IsDefinition), IsOptimized(IsOptimized) {}
1244 ~MDSubprogram() = default;
1246 static MDSubprogram *
1247 getImpl(LLVMContext &Context, MDScopeRef Scope, StringRef Name,
1248 StringRef LinkageName, MDFile *File, unsigned Line,
1249 MDSubroutineType *Type, bool IsLocalToUnit, bool IsDefinition,
1250 unsigned ScopeLine, MDTypeRef ContainingType, unsigned Virtuality,
1251 unsigned VirtualIndex, unsigned Flags, bool IsOptimized,
1252 Constant *Function, MDTemplateParameterArray TemplateParams,
1253 MDSubprogram *Declaration, MDLocalVariableArray Variables,
1254 StorageType Storage, bool ShouldCreate = true) {
1255 return getImpl(Context, Scope, getCanonicalMDString(Context, Name),
1256 getCanonicalMDString(Context, LinkageName), File, Line, Type,
1257 IsLocalToUnit, IsDefinition, ScopeLine, ContainingType,
1258 Virtuality, VirtualIndex, Flags, IsOptimized,
1259 Function ? ConstantAsMetadata::get(Function) : nullptr,
1260 TemplateParams.get(), Declaration, Variables.get(), Storage,
1263 static MDSubprogram *
1264 getImpl(LLVMContext &Context, Metadata *Scope, MDString *Name,
1265 MDString *LinkageName, Metadata *File, unsigned Line, Metadata *Type,
1266 bool IsLocalToUnit, bool IsDefinition, unsigned ScopeLine,
1267 Metadata *ContainingType, unsigned Virtuality, unsigned VirtualIndex,
1268 unsigned Flags, bool IsOptimized, Metadata *Function,
1269 Metadata *TemplateParams, Metadata *Declaration, Metadata *Variables,
1270 StorageType Storage, bool ShouldCreate = true);
1272 TempMDSubprogram cloneImpl() const {
1273 return getTemporary(getContext(), getScope(), getName(), getLinkageName(),
1274 getFile(), getLine(), getType(), isLocalToUnit(),
1275 isDefinition(), getScopeLine(), getContainingType(),
1276 getVirtuality(), getVirtualIndex(), getFlags(),
1277 isOptimized(), getFunctionConstant(),
1278 getTemplateParams(), getDeclaration(), getVariables());
1282 DEFINE_MDNODE_GET(MDSubprogram,
1283 (MDScopeRef Scope, StringRef Name, StringRef LinkageName,
1284 MDFile *File, unsigned Line, MDSubroutineType *Type,
1285 bool IsLocalToUnit, bool IsDefinition, unsigned ScopeLine,
1286 MDTypeRef ContainingType, unsigned Virtuality,
1287 unsigned VirtualIndex, unsigned Flags, bool IsOptimized,
1288 Constant *Function = nullptr,
1289 MDTemplateParameterArray TemplateParams = nullptr,
1290 MDSubprogram *Declaration = nullptr,
1291 MDLocalVariableArray Variables = nullptr),
1292 (Scope, Name, LinkageName, File, Line, Type, IsLocalToUnit,
1293 IsDefinition, ScopeLine, ContainingType, Virtuality,
1294 VirtualIndex, Flags, IsOptimized, Function, TemplateParams,
1295 Declaration, Variables))
1298 (Metadata * Scope, MDString *Name, MDString *LinkageName, Metadata *File,
1299 unsigned Line, Metadata *Type, bool IsLocalToUnit, bool IsDefinition,
1300 unsigned ScopeLine, Metadata *ContainingType, unsigned Virtuality,
1301 unsigned VirtualIndex, unsigned Flags, bool IsOptimized,
1302 Metadata *Function = nullptr, Metadata *TemplateParams = nullptr,
1303 Metadata *Declaration = nullptr, Metadata *Variables = nullptr),
1304 (Scope, Name, LinkageName, File, Line, Type, IsLocalToUnit, IsDefinition,
1305 ScopeLine, ContainingType, Virtuality, VirtualIndex, Flags, IsOptimized,
1306 Function, TemplateParams, Declaration, Variables))
1308 TempMDSubprogram clone() const { return cloneImpl(); }
1311 unsigned getLine() const { return Line; }
1312 unsigned getVirtuality() const { return Virtuality; }
1313 unsigned getVirtualIndex() const { return VirtualIndex; }
1314 unsigned getScopeLine() const { return ScopeLine; }
1315 unsigned getFlags() const { return Flags; }
1316 bool isLocalToUnit() const { return IsLocalToUnit; }
1317 bool isDefinition() const { return IsDefinition; }
1318 bool isOptimized() const { return IsOptimized; }
1320 unsigned isArtificial() const { return getFlags() & FlagArtificial; }
1321 bool isPrivate() const {
1322 return (getFlags() & FlagAccessibility) == FlagPrivate;
1324 bool isProtected() const {
1325 return (getFlags() & FlagAccessibility) == FlagProtected;
1327 bool isPublic() const {
1328 return (getFlags() & FlagAccessibility) == FlagPublic;
1330 bool isExplicit() const { return getFlags() & FlagExplicit; }
1331 bool isPrototyped() const { return getFlags() & FlagPrototyped; }
1333 /// \brief Check if this is reference-qualified.
1335 /// Return true if this subprogram is a C++11 reference-qualified non-static
1336 /// member function (void foo() &).
1337 unsigned isLValueReference() const {
1338 return getFlags() & FlagLValueReference;
1341 /// \brief Check if this is rvalue-reference-qualified.
1343 /// Return true if this subprogram is a C++11 rvalue-reference-qualified
1344 /// non-static member function (void foo() &&).
1345 unsigned isRValueReference() const {
1346 return getFlags() & FlagRValueReference;
1349 MDScopeRef getScope() const { return MDScopeRef(getRawScope()); }
1351 StringRef getName() const { return getStringOperand(2); }
1352 StringRef getDisplayName() const { return getStringOperand(3); }
1353 StringRef getLinkageName() const { return getStringOperand(4); }
1355 MDString *getRawName() const { return getOperandAs<MDString>(2); }
1356 MDString *getRawLinkageName() const { return getOperandAs<MDString>(4); }
1358 MDSubroutineType *getType() const {
1359 return cast_or_null<MDSubroutineType>(getRawType());
1361 MDTypeRef getContainingType() const {
1362 return MDTypeRef(getRawContainingType());
1365 Constant *getFunctionConstant() const {
1366 if (auto *C = cast_or_null<ConstantAsMetadata>(getRawFunction()))
1367 return C->getValue();
1370 MDTemplateParameterArray getTemplateParams() const {
1371 return cast_or_null<MDTuple>(getRawTemplateParams());
1373 MDSubprogram *getDeclaration() const {
1374 return cast_or_null<MDSubprogram>(getRawDeclaration());
1376 MDLocalVariableArray getVariables() const {
1377 return cast_or_null<MDTuple>(getRawVariables());
1380 Metadata *getRawScope() const { return getOperand(1); }
1381 Metadata *getRawType() const { return getOperand(5); }
1382 Metadata *getRawContainingType() const { return getOperand(6); }
1383 Metadata *getRawFunction() const { return getOperand(7); }
1384 Metadata *getRawTemplateParams() const { return getOperand(8); }
1385 Metadata *getRawDeclaration() const { return getOperand(9); }
1386 Metadata *getRawVariables() const { return getOperand(10); }
1388 /// \brief Get a pointer to the function this subprogram describes.
1390 /// This dyn_casts \a getFunctionConstant() to \a Function.
1392 /// FIXME: Should this be looking through bitcasts?
1393 Function *getFunction() const;
1395 /// \brief Replace the function.
1397 /// If \a isUniqued() and not \a isResolved(), this could node will be
1398 /// RAUW'ed and deleted out from under the caller. Use a \a TrackingMDRef if
1399 /// that's a problem.
1401 void replaceFunction(Function *F);
1402 void replaceFunction(ConstantAsMetadata *MD) { replaceOperandWith(7, MD); }
1403 void replaceFunction(std::nullptr_t) { replaceOperandWith(7, nullptr); }
1406 /// \brief Check if this subprogram decribes the given function.
1408 /// FIXME: Should this be looking through bitcasts?
1409 bool describes(const Function *F) const;
1411 static bool classof(const Metadata *MD) {
1412 return MD->getMetadataID() == MDSubprogramKind;
1416 class MDLexicalBlockBase : public MDLocalScope {
1418 MDLexicalBlockBase(LLVMContext &C, unsigned ID, StorageType Storage,
1419 ArrayRef<Metadata *> Ops)
1420 : MDLocalScope(C, ID, Storage, dwarf::DW_TAG_lexical_block, Ops) {}
1421 ~MDLexicalBlockBase() = default;
1424 MDLocalScope *getScope() const { return cast<MDLocalScope>(getRawScope()); }
1426 Metadata *getRawScope() const { return getOperand(1); }
1428 static bool classof(const Metadata *MD) {
1429 return MD->getMetadataID() == MDLexicalBlockKind ||
1430 MD->getMetadataID() == MDLexicalBlockFileKind;
1434 class MDLexicalBlock : public MDLexicalBlockBase {
1435 friend class LLVMContextImpl;
1436 friend class MDNode;
1441 MDLexicalBlock(LLVMContext &C, StorageType Storage, unsigned Line,
1442 unsigned Column, ArrayRef<Metadata *> Ops)
1443 : MDLexicalBlockBase(C, MDLexicalBlockKind, Storage, Ops), Line(Line),
1445 ~MDLexicalBlock() = default;
1447 static MDLexicalBlock *getImpl(LLVMContext &Context, MDLocalScope *Scope,
1448 MDFile *File, unsigned Line, unsigned Column,
1449 StorageType Storage,
1450 bool ShouldCreate = true) {
1451 return getImpl(Context, static_cast<Metadata *>(Scope),
1452 static_cast<Metadata *>(File), Line, Column, Storage,
1456 static MDLexicalBlock *getImpl(LLVMContext &Context, Metadata *Scope,
1457 Metadata *File, unsigned Line, unsigned Column,
1458 StorageType Storage, bool ShouldCreate = true);
1460 TempMDLexicalBlock cloneImpl() const {
1461 return getTemporary(getContext(), getScope(), getFile(), getLine(),
1466 DEFINE_MDNODE_GET(MDLexicalBlock, (MDLocalScope * Scope, MDFile *File,
1467 unsigned Line, unsigned Column),
1468 (Scope, File, Line, Column))
1469 DEFINE_MDNODE_GET(MDLexicalBlock, (Metadata * Scope, Metadata *File,
1470 unsigned Line, unsigned Column),
1471 (Scope, File, Line, Column))
1473 TempMDLexicalBlock clone() const { return cloneImpl(); }
1475 unsigned getLine() const { return Line; }
1476 unsigned getColumn() const { return Column; }
1478 static bool classof(const Metadata *MD) {
1479 return MD->getMetadataID() == MDLexicalBlockKind;
1483 class MDLexicalBlockFile : public MDLexicalBlockBase {
1484 friend class LLVMContextImpl;
1485 friend class MDNode;
1487 unsigned Discriminator;
1489 MDLexicalBlockFile(LLVMContext &C, StorageType Storage,
1490 unsigned Discriminator, ArrayRef<Metadata *> Ops)
1491 : MDLexicalBlockBase(C, MDLexicalBlockFileKind, Storage, Ops),
1492 Discriminator(Discriminator) {}
1493 ~MDLexicalBlockFile() = default;
1495 static MDLexicalBlockFile *getImpl(LLVMContext &Context, MDLocalScope *Scope,
1496 MDFile *File, unsigned Discriminator,
1497 StorageType Storage,
1498 bool ShouldCreate = true) {
1499 return getImpl(Context, static_cast<Metadata *>(Scope),
1500 static_cast<Metadata *>(File), Discriminator, Storage,
1504 static MDLexicalBlockFile *getImpl(LLVMContext &Context, Metadata *Scope,
1505 Metadata *File, unsigned Discriminator,
1506 StorageType Storage,
1507 bool ShouldCreate = true);
1509 TempMDLexicalBlockFile cloneImpl() const {
1510 return getTemporary(getContext(), getScope(), getFile(),
1511 getDiscriminator());
1515 DEFINE_MDNODE_GET(MDLexicalBlockFile, (MDLocalScope * Scope, MDFile *File,
1516 unsigned Discriminator),
1517 (Scope, File, Discriminator))
1518 DEFINE_MDNODE_GET(MDLexicalBlockFile,
1519 (Metadata * Scope, Metadata *File, unsigned Discriminator),
1520 (Scope, File, Discriminator))
1522 TempMDLexicalBlockFile clone() const { return cloneImpl(); }
1524 unsigned getDiscriminator() const { return Discriminator; }
1526 static bool classof(const Metadata *MD) {
1527 return MD->getMetadataID() == MDLexicalBlockFileKind;
1531 class MDNamespace : public MDScope {
1532 friend class LLVMContextImpl;
1533 friend class MDNode;
1537 MDNamespace(LLVMContext &Context, StorageType Storage, unsigned Line,
1538 ArrayRef<Metadata *> Ops)
1539 : MDScope(Context, MDNamespaceKind, Storage, dwarf::DW_TAG_namespace,
1542 ~MDNamespace() = default;
1544 static MDNamespace *getImpl(LLVMContext &Context, MDScope *Scope,
1545 MDFile *File, StringRef Name, unsigned Line,
1546 StorageType Storage, bool ShouldCreate = true) {
1547 return getImpl(Context, Scope, File, getCanonicalMDString(Context, Name),
1548 Line, Storage, ShouldCreate);
1550 static MDNamespace *getImpl(LLVMContext &Context, Metadata *Scope,
1551 Metadata *File, MDString *Name, unsigned Line,
1552 StorageType Storage, bool ShouldCreate = true);
1554 TempMDNamespace cloneImpl() const {
1555 return getTemporary(getContext(), getScope(), getFile(), getName(),
1560 DEFINE_MDNODE_GET(MDNamespace, (MDScope * Scope, MDFile *File, StringRef Name,
1562 (Scope, File, Name, Line))
1563 DEFINE_MDNODE_GET(MDNamespace, (Metadata * Scope, Metadata *File,
1564 MDString *Name, unsigned Line),
1565 (Scope, File, Name, Line))
1567 TempMDNamespace clone() const { return cloneImpl(); }
1569 unsigned getLine() const { return Line; }
1570 MDScope *getScope() const { return cast_or_null<MDScope>(getRawScope()); }
1571 StringRef getName() const { return getStringOperand(2); }
1573 Metadata *getRawScope() const { return getOperand(1); }
1574 MDString *getRawName() const { return getOperandAs<MDString>(2); }
1576 static bool classof(const Metadata *MD) {
1577 return MD->getMetadataID() == MDNamespaceKind;
1581 /// \brief Base class for template parameters.
1582 class MDTemplateParameter : public DebugNode {
1584 MDTemplateParameter(LLVMContext &Context, unsigned ID, StorageType Storage,
1585 unsigned Tag, ArrayRef<Metadata *> Ops)
1586 : DebugNode(Context, ID, Storage, Tag, Ops) {}
1587 ~MDTemplateParameter() = default;
1590 StringRef getName() const { return getStringOperand(0); }
1591 MDTypeRef getType() const { return MDTypeRef(getRawType()); }
1593 MDString *getRawName() const { return getOperandAs<MDString>(0); }
1594 Metadata *getRawType() const { return getOperand(1); }
1596 static bool classof(const Metadata *MD) {
1597 return MD->getMetadataID() == MDTemplateTypeParameterKind ||
1598 MD->getMetadataID() == MDTemplateValueParameterKind;
1602 class MDTemplateTypeParameter : public MDTemplateParameter {
1603 friend class LLVMContextImpl;
1604 friend class MDNode;
1606 MDTemplateTypeParameter(LLVMContext &Context, StorageType Storage,
1607 ArrayRef<Metadata *> Ops)
1608 : MDTemplateParameter(Context, MDTemplateTypeParameterKind, Storage,
1609 dwarf::DW_TAG_template_type_parameter, Ops) {}
1610 ~MDTemplateTypeParameter() = default;
1612 static MDTemplateTypeParameter *getImpl(LLVMContext &Context, StringRef Name,
1613 MDTypeRef Type, StorageType Storage,
1614 bool ShouldCreate = true) {
1615 return getImpl(Context, getCanonicalMDString(Context, Name), Type, Storage,
1618 static MDTemplateTypeParameter *getImpl(LLVMContext &Context, MDString *Name,
1619 Metadata *Type, StorageType Storage,
1620 bool ShouldCreate = true);
1622 TempMDTemplateTypeParameter cloneImpl() const {
1623 return getTemporary(getContext(), getName(), getType());
1627 DEFINE_MDNODE_GET(MDTemplateTypeParameter, (StringRef Name, MDTypeRef Type),
1629 DEFINE_MDNODE_GET(MDTemplateTypeParameter, (MDString * Name, Metadata *Type),
1632 TempMDTemplateTypeParameter clone() const { return cloneImpl(); }
1634 static bool classof(const Metadata *MD) {
1635 return MD->getMetadataID() == MDTemplateTypeParameterKind;
1639 class MDTemplateValueParameter : public MDTemplateParameter {
1640 friend class LLVMContextImpl;
1641 friend class MDNode;
1643 MDTemplateValueParameter(LLVMContext &Context, StorageType Storage,
1644 unsigned Tag, ArrayRef<Metadata *> Ops)
1645 : MDTemplateParameter(Context, MDTemplateValueParameterKind, Storage, Tag,
1647 ~MDTemplateValueParameter() = default;
1649 static MDTemplateValueParameter *getImpl(LLVMContext &Context, unsigned Tag,
1650 StringRef Name, MDTypeRef Type,
1651 Metadata *Value, StorageType Storage,
1652 bool ShouldCreate = true) {
1653 return getImpl(Context, Tag, getCanonicalMDString(Context, Name), Type,
1654 Value, Storage, ShouldCreate);
1656 static MDTemplateValueParameter *getImpl(LLVMContext &Context, unsigned Tag,
1657 MDString *Name, Metadata *Type,
1658 Metadata *Value, StorageType Storage,
1659 bool ShouldCreate = true);
1661 TempMDTemplateValueParameter cloneImpl() const {
1662 return getTemporary(getContext(), getTag(), getName(), getType(),
1667 DEFINE_MDNODE_GET(MDTemplateValueParameter, (unsigned Tag, StringRef Name,
1668 MDTypeRef Type, Metadata *Value),
1669 (Tag, Name, Type, Value))
1670 DEFINE_MDNODE_GET(MDTemplateValueParameter, (unsigned Tag, MDString *Name,
1671 Metadata *Type, Metadata *Value),
1672 (Tag, Name, Type, Value))
1674 TempMDTemplateValueParameter clone() const { return cloneImpl(); }
1676 Metadata *getValue() const { return getOperand(2); }
1678 static bool classof(const Metadata *MD) {
1679 return MD->getMetadataID() == MDTemplateValueParameterKind;
1683 /// \brief Base class for variables.
1685 /// TODO: Hardcode to DW_TAG_variable.
1686 class MDVariable : public DebugNode {
1690 MDVariable(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Tag,
1691 unsigned Line, ArrayRef<Metadata *> Ops)
1692 : DebugNode(C, ID, Storage, Tag, Ops), Line(Line) {}
1693 ~MDVariable() = default;
1696 unsigned getLine() const { return Line; }
1697 MDScope *getScope() const { return cast_or_null<MDScope>(getRawScope()); }
1698 StringRef getName() const { return getStringOperand(1); }
1699 MDFile *getFile() const { return cast_or_null<MDFile>(getRawFile()); }
1700 MDTypeRef getType() const { return MDTypeRef(getRawType()); }
1702 StringRef getFilename() const {
1703 if (auto *F = getFile())
1704 return F->getFilename();
1707 StringRef getDirectory() const {
1708 if (auto *F = getFile())
1709 return F->getDirectory();
1713 Metadata *getRawScope() const { return getOperand(0); }
1714 MDString *getRawName() const { return getOperandAs<MDString>(1); }
1715 Metadata *getRawFile() const { return getOperand(2); }
1716 Metadata *getRawType() const { return getOperand(3); }
1718 static bool classof(const Metadata *MD) {
1719 return MD->getMetadataID() == MDLocalVariableKind ||
1720 MD->getMetadataID() == MDGlobalVariableKind;
1724 /// \brief Global variables.
1726 /// TODO: Remove DisplayName. It's always equal to Name.
1727 class MDGlobalVariable : public MDVariable {
1728 friend class LLVMContextImpl;
1729 friend class MDNode;
1734 MDGlobalVariable(LLVMContext &C, StorageType Storage, unsigned Line,
1735 bool IsLocalToUnit, bool IsDefinition,
1736 ArrayRef<Metadata *> Ops)
1737 : MDVariable(C, MDGlobalVariableKind, Storage, dwarf::DW_TAG_variable,
1739 IsLocalToUnit(IsLocalToUnit), IsDefinition(IsDefinition) {}
1740 ~MDGlobalVariable() = default;
1742 static MDGlobalVariable *
1743 getImpl(LLVMContext &Context, MDScope *Scope, StringRef Name,
1744 StringRef LinkageName, MDFile *File, unsigned Line, MDTypeRef Type,
1745 bool IsLocalToUnit, bool IsDefinition, Constant *Variable,
1746 MDDerivedType *StaticDataMemberDeclaration, StorageType Storage,
1747 bool ShouldCreate = true) {
1748 return getImpl(Context, Scope, getCanonicalMDString(Context, Name),
1749 getCanonicalMDString(Context, LinkageName), File, Line, Type,
1750 IsLocalToUnit, IsDefinition,
1751 Variable ? ConstantAsMetadata::get(Variable) : nullptr,
1752 StaticDataMemberDeclaration, Storage, ShouldCreate);
1754 static MDGlobalVariable *
1755 getImpl(LLVMContext &Context, Metadata *Scope, MDString *Name,
1756 MDString *LinkageName, Metadata *File, unsigned Line, Metadata *Type,
1757 bool IsLocalToUnit, bool IsDefinition, Metadata *Variable,
1758 Metadata *StaticDataMemberDeclaration, StorageType Storage,
1759 bool ShouldCreate = true);
1761 TempMDGlobalVariable cloneImpl() const {
1762 return getTemporary(getContext(), getScope(), getName(), getLinkageName(),
1763 getFile(), getLine(), getType(), isLocalToUnit(),
1764 isDefinition(), getVariable(),
1765 getStaticDataMemberDeclaration());
1769 DEFINE_MDNODE_GET(MDGlobalVariable,
1770 (MDScope * Scope, StringRef Name, StringRef LinkageName,
1771 MDFile *File, unsigned Line, MDTypeRef Type,
1772 bool IsLocalToUnit, bool IsDefinition, Constant *Variable,
1773 MDDerivedType *StaticDataMemberDeclaration),
1774 (Scope, Name, LinkageName, File, Line, Type, IsLocalToUnit,
1775 IsDefinition, Variable, StaticDataMemberDeclaration))
1776 DEFINE_MDNODE_GET(MDGlobalVariable,
1777 (Metadata * Scope, MDString *Name, MDString *LinkageName,
1778 Metadata *File, unsigned Line, Metadata *Type,
1779 bool IsLocalToUnit, bool IsDefinition, Metadata *Variable,
1780 Metadata *StaticDataMemberDeclaration),
1781 (Scope, Name, LinkageName, File, Line, Type, IsLocalToUnit,
1782 IsDefinition, Variable, StaticDataMemberDeclaration))
1784 TempMDGlobalVariable clone() const { return cloneImpl(); }
1786 bool isLocalToUnit() const { return IsLocalToUnit; }
1787 bool isDefinition() const { return IsDefinition; }
1788 StringRef getDisplayName() const { return getStringOperand(4); }
1789 StringRef getLinkageName() const { return getStringOperand(5); }
1790 Constant *getVariable() const {
1791 if (auto *C = cast_or_null<ConstantAsMetadata>(getRawVariable()))
1792 return dyn_cast<Constant>(C->getValue());
1795 MDDerivedType *getStaticDataMemberDeclaration() const {
1796 return cast_or_null<MDDerivedType>(getRawStaticDataMemberDeclaration());
1799 MDString *getRawLinkageName() const { return getOperandAs<MDString>(5); }
1800 Metadata *getRawVariable() const { return getOperand(6); }
1801 Metadata *getRawStaticDataMemberDeclaration() const { return getOperand(7); }
1803 static bool classof(const Metadata *MD) {
1804 return MD->getMetadataID() == MDGlobalVariableKind;
1808 /// \brief Local variable.
1810 /// TODO: Split between arguments and otherwise.
1811 /// TODO: Use \c DW_TAG_variable instead of fake tags.
1812 /// TODO: Split up flags.
1813 class MDLocalVariable : public MDVariable {
1814 friend class LLVMContextImpl;
1815 friend class MDNode;
1820 MDLocalVariable(LLVMContext &C, StorageType Storage, unsigned Tag,
1821 unsigned Line, unsigned Arg, unsigned Flags,
1822 ArrayRef<Metadata *> Ops)
1823 : MDVariable(C, MDLocalVariableKind, Storage, Tag, Line, Ops), Arg(Arg),
1825 ~MDLocalVariable() = default;
1827 static MDLocalVariable *getImpl(LLVMContext &Context, unsigned Tag,
1828 MDScope *Scope, StringRef Name, MDFile *File,
1829 unsigned Line, MDTypeRef Type, unsigned Arg,
1830 unsigned Flags, MDLocation *InlinedAt,
1831 StorageType Storage,
1832 bool ShouldCreate = true) {
1833 return getImpl(Context, Tag, Scope, getCanonicalMDString(Context, Name),
1834 File, Line, Type, Arg, Flags, InlinedAt, Storage,
1837 static MDLocalVariable *getImpl(LLVMContext &Context, unsigned Tag,
1838 Metadata *Scope, MDString *Name,
1839 Metadata *File, unsigned Line, Metadata *Type,
1840 unsigned Arg, unsigned Flags,
1841 Metadata *InlinedAt, StorageType Storage,
1842 bool ShouldCreate = true);
1844 TempMDLocalVariable cloneImpl() const {
1845 return getTemporary(getContext(), getTag(), getScope(), getName(),
1846 getFile(), getLine(), getType(), getArg(), getFlags(),
1851 DEFINE_MDNODE_GET(MDLocalVariable,
1852 (unsigned Tag, MDLocalScope *Scope, StringRef Name,
1853 MDFile *File, unsigned Line, MDTypeRef Type, unsigned Arg,
1854 unsigned Flags, MDLocation *InlinedAt = nullptr),
1855 (Tag, Scope, Name, File, Line, Type, Arg, Flags, InlinedAt))
1856 DEFINE_MDNODE_GET(MDLocalVariable,
1857 (unsigned Tag, Metadata *Scope, MDString *Name,
1858 Metadata *File, unsigned Line, Metadata *Type,
1859 unsigned Arg, unsigned Flags,
1860 Metadata *InlinedAt = nullptr),
1861 (Tag, Scope, Name, File, Line, Type, Arg, Flags, InlinedAt))
1863 TempMDLocalVariable clone() const { return cloneImpl(); }
1865 /// \brief Get the local scope for this variable.
1867 /// Variables must be defined in a local scope.
1868 MDLocalScope *getScope() const {
1869 return cast<MDLocalScope>(MDVariable::getScope());
1872 unsigned getArg() const { return Arg; }
1873 unsigned getFlags() const { return Flags; }
1874 MDLocation *getInlinedAt() const {
1875 return cast_or_null<MDLocation>(getRawInlinedAt());
1878 Metadata *getRawInlinedAt() const { return getOperand(4); }
1880 bool isArtificial() const { return getFlags() & FlagArtificial; }
1881 bool isObjectPointer() const { return getFlags() & FlagObjectPointer; }
1883 /// \brief Check that a location is valid for this variable.
1885 /// Check that \c DL has the same inlined-at location as this variable,
1886 /// making them valid for the same \a DbgInfoIntrinsic.
1887 bool isValidLocationForIntrinsic(const MDLocation *DL) const {
1888 return getInlinedAt() == (DL ? DL->getInlinedAt() : nullptr);
1891 /// \brief Get an inlined version of this variable.
1893 /// Returns a version of this with \a getAlinedAt() set to \c InlinedAt.
1894 MDLocalVariable *withInline(MDLocation *InlinedAt) const {
1895 if (InlinedAt == getInlinedAt())
1896 return const_cast<MDLocalVariable *>(this);
1897 auto Temp = clone();
1898 Temp->replaceOperandWith(4, InlinedAt);
1899 return replaceWithUniqued(std::move(Temp));
1901 MDLocalVariable *withoutInline() const { return withInline(nullptr); }
1903 static bool classof(const Metadata *MD) {
1904 return MD->getMetadataID() == MDLocalVariableKind;
1908 /// \brief DWARF expression.
1910 /// TODO: Co-allocate the expression elements.
1911 /// TODO: Separate from MDNode, or otherwise drop Distinct and Temporary
1913 class MDExpression : public MDNode {
1914 friend class LLVMContextImpl;
1915 friend class MDNode;
1917 std::vector<uint64_t> Elements;
1919 MDExpression(LLVMContext &C, StorageType Storage, ArrayRef<uint64_t> Elements)
1920 : MDNode(C, MDExpressionKind, Storage, None),
1921 Elements(Elements.begin(), Elements.end()) {}
1922 ~MDExpression() = default;
1924 static MDExpression *getImpl(LLVMContext &Context,
1925 ArrayRef<uint64_t> Elements, StorageType Storage,
1926 bool ShouldCreate = true);
1928 TempMDExpression cloneImpl() const {
1929 return getTemporary(getContext(), getElements());
1933 DEFINE_MDNODE_GET(MDExpression, (ArrayRef<uint64_t> Elements), (Elements))
1935 TempMDExpression clone() const { return cloneImpl(); }
1937 ArrayRef<uint64_t> getElements() const { return Elements; }
1939 unsigned getNumElements() const { return Elements.size(); }
1940 uint64_t getElement(unsigned I) const {
1941 assert(I < Elements.size() && "Index out of range");
1945 /// \brief Return whether this is a piece of an aggregate variable.
1946 bool isBitPiece() const;
1948 /// \brief Return the offset of this piece in bits.
1949 uint64_t getBitPieceOffset() const;
1951 /// \brief Return the size of this piece in bits.
1952 uint64_t getBitPieceSize() const;
1954 typedef ArrayRef<uint64_t>::iterator element_iterator;
1955 element_iterator elements_begin() const { return getElements().begin(); }
1956 element_iterator elements_end() const { return getElements().end(); }
1958 /// \brief A lightweight wrapper around an expression operand.
1960 /// TODO: Store arguments directly and change \a MDExpression to store a
1966 explicit ExprOperand(const uint64_t *Op) : Op(Op) {}
1968 const uint64_t *get() const { return Op; }
1970 /// \brief Get the operand code.
1971 uint64_t getOp() const { return *Op; }
1973 /// \brief Get an argument to the operand.
1975 /// Never returns the operand itself.
1976 uint64_t getArg(unsigned I) const { return Op[I + 1]; }
1978 unsigned getNumArgs() const { return getSize() - 1; }
1980 /// \brief Return the size of the operand.
1982 /// Return the number of elements in the operand (1 + args).
1983 unsigned getSize() const;
1986 /// \brief An iterator for expression operands.
1987 class expr_op_iterator
1988 : public std::iterator<std::input_iterator_tag, ExprOperand> {
1992 explicit expr_op_iterator(element_iterator I) : Op(I) {}
1994 element_iterator getBase() const { return Op.get(); }
1995 const ExprOperand &operator*() const { return Op; }
1996 const ExprOperand *operator->() const { return &Op; }
1998 expr_op_iterator &operator++() {
2002 expr_op_iterator operator++(int) {
2003 expr_op_iterator T(*this);
2008 /// \brief Get the next iterator.
2010 /// \a std::next() doesn't work because this is technically an
2011 /// input_iterator, but it's a perfectly valid operation. This is an
2012 /// accessor to provide the same functionality.
2013 expr_op_iterator getNext() const { return ++expr_op_iterator(*this); }
2015 bool operator==(const expr_op_iterator &X) const {
2016 return getBase() == X.getBase();
2018 bool operator!=(const expr_op_iterator &X) const {
2019 return getBase() != X.getBase();
2023 void increment() { Op = ExprOperand(getBase() + Op.getSize()); }
2026 /// \brief Visit the elements via ExprOperand wrappers.
2028 /// These range iterators visit elements through \a ExprOperand wrappers.
2029 /// This is not guaranteed to be a valid range unless \a isValid() gives \c
2032 /// \pre \a isValid() gives \c true.
2034 expr_op_iterator expr_op_begin() const {
2035 return expr_op_iterator(elements_begin());
2037 expr_op_iterator expr_op_end() const {
2038 return expr_op_iterator(elements_end());
2042 bool isValid() const;
2044 static bool classof(const Metadata *MD) {
2045 return MD->getMetadataID() == MDExpressionKind;
2049 class MDObjCProperty : public DebugNode {
2050 friend class LLVMContextImpl;
2051 friend class MDNode;
2054 unsigned Attributes;
2056 MDObjCProperty(LLVMContext &C, StorageType Storage, unsigned Line,
2057 unsigned Attributes, ArrayRef<Metadata *> Ops)
2058 : DebugNode(C, MDObjCPropertyKind, Storage, dwarf::DW_TAG_APPLE_property,
2060 Line(Line), Attributes(Attributes) {}
2061 ~MDObjCProperty() = default;
2063 static MDObjCProperty *
2064 getImpl(LLVMContext &Context, StringRef Name, MDFile *File, unsigned Line,
2065 StringRef GetterName, StringRef SetterName, unsigned Attributes,
2066 MDType *Type, StorageType Storage, bool ShouldCreate = true) {
2067 return getImpl(Context, getCanonicalMDString(Context, Name), File, Line,
2068 getCanonicalMDString(Context, GetterName),
2069 getCanonicalMDString(Context, SetterName), Attributes, Type,
2070 Storage, ShouldCreate);
2072 static MDObjCProperty *getImpl(LLVMContext &Context, MDString *Name,
2073 Metadata *File, unsigned Line,
2074 MDString *GetterName, MDString *SetterName,
2075 unsigned Attributes, Metadata *Type,
2076 StorageType Storage, bool ShouldCreate = true);
2078 TempMDObjCProperty cloneImpl() const {
2079 return getTemporary(getContext(), getName(), getFile(), getLine(),
2080 getGetterName(), getSetterName(), getAttributes(),
2085 DEFINE_MDNODE_GET(MDObjCProperty,
2086 (StringRef Name, MDFile *File, unsigned Line,
2087 StringRef GetterName, StringRef SetterName,
2088 unsigned Attributes, MDType *Type),
2089 (Name, File, Line, GetterName, SetterName, Attributes,
2091 DEFINE_MDNODE_GET(MDObjCProperty,
2092 (MDString * Name, Metadata *File, unsigned Line,
2093 MDString *GetterName, MDString *SetterName,
2094 unsigned Attributes, Metadata *Type),
2095 (Name, File, Line, GetterName, SetterName, Attributes,
2098 TempMDObjCProperty clone() const { return cloneImpl(); }
2100 unsigned getLine() const { return Line; }
2101 unsigned getAttributes() const { return Attributes; }
2102 StringRef getName() const { return getStringOperand(0); }
2103 MDFile *getFile() const { return cast_or_null<MDFile>(getRawFile()); }
2104 StringRef getGetterName() const { return getStringOperand(2); }
2105 StringRef getSetterName() const { return getStringOperand(3); }
2106 MDType *getType() const { return cast_or_null<MDType>(getRawType()); }
2108 StringRef getFilename() const {
2109 if (auto *F = getFile())
2110 return F->getFilename();
2113 StringRef getDirectory() const {
2114 if (auto *F = getFile())
2115 return F->getDirectory();
2119 MDString *getRawName() const { return getOperandAs<MDString>(0); }
2120 Metadata *getRawFile() const { return getOperand(1); }
2121 MDString *getRawGetterName() const { return getOperandAs<MDString>(2); }
2122 MDString *getRawSetterName() const { return getOperandAs<MDString>(3); }
2123 Metadata *getRawType() const { return getOperand(4); }
2125 static bool classof(const Metadata *MD) {
2126 return MD->getMetadataID() == MDObjCPropertyKind;
2130 class MDImportedEntity : public DebugNode {
2131 friend class LLVMContextImpl;
2132 friend class MDNode;
2136 MDImportedEntity(LLVMContext &C, StorageType Storage, unsigned Tag,
2137 unsigned Line, ArrayRef<Metadata *> Ops)
2138 : DebugNode(C, MDImportedEntityKind, Storage, Tag, Ops), Line(Line) {}
2139 ~MDImportedEntity() = default;
2141 static MDImportedEntity *getImpl(LLVMContext &Context, unsigned Tag,
2142 MDScope *Scope, DebugNodeRef Entity,
2143 unsigned Line, StringRef Name,
2144 StorageType Storage,
2145 bool ShouldCreate = true) {
2146 return getImpl(Context, Tag, Scope, Entity, Line,
2147 getCanonicalMDString(Context, Name), Storage, ShouldCreate);
2149 static MDImportedEntity *getImpl(LLVMContext &Context, unsigned Tag,
2150 Metadata *Scope, Metadata *Entity,
2151 unsigned Line, MDString *Name,
2152 StorageType Storage,
2153 bool ShouldCreate = true);
2155 TempMDImportedEntity cloneImpl() const {
2156 return getTemporary(getContext(), getTag(), getScope(), getEntity(),
2157 getLine(), getName());
2161 DEFINE_MDNODE_GET(MDImportedEntity,
2162 (unsigned Tag, MDScope *Scope, DebugNodeRef Entity,
2163 unsigned Line, StringRef Name = ""),
2164 (Tag, Scope, Entity, Line, Name))
2165 DEFINE_MDNODE_GET(MDImportedEntity,
2166 (unsigned Tag, Metadata *Scope, Metadata *Entity,
2167 unsigned Line, MDString *Name),
2168 (Tag, Scope, Entity, Line, Name))
2170 TempMDImportedEntity clone() const { return cloneImpl(); }
2172 unsigned getLine() const { return Line; }
2173 MDScope *getScope() const { return cast_or_null<MDScope>(getRawScope()); }
2174 DebugNodeRef getEntity() const { return DebugNodeRef(getRawEntity()); }
2175 StringRef getName() const { return getStringOperand(2); }
2177 Metadata *getRawScope() const { return getOperand(0); }
2178 Metadata *getRawEntity() const { return getOperand(1); }
2179 MDString *getRawName() const { return getOperandAs<MDString>(2); }
2181 static bool classof(const Metadata *MD) {
2182 return MD->getMetadataID() == MDImportedEntityKind;
2186 } // end namespace llvm
2188 #undef DEFINE_MDNODE_GET_UNPACK_IMPL
2189 #undef DEFINE_MDNODE_GET_UNPACK
2190 #undef DEFINE_MDNODE_GET