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llvm-mirror/include/llvm/IR/DebugInfoMetadata.h
Amjad Aboud 85f2758759 Macro debug info support in LLVM IR
Introduced DIMacro and DIMacroFile debug info metadata in the LLVM IR to support macros.

Differential Revision: http://reviews.llvm.org/D14687

llvm-svn: 255245
2015-12-10 12:56:35 +00:00

2376 lines
90 KiB
C++

//===- llvm/IR/DebugInfoMetadata.h - Debug info metadata --------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Declarations for metadata specific to debug info.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_IR_DEBUGINFOMETADATA_H
#define LLVM_IR_DEBUGINFOMETADATA_H
#include "llvm/IR/Metadata.h"
#include "llvm/Support/Dwarf.h"
// Helper macros for defining get() overrides.
#define DEFINE_MDNODE_GET_UNPACK_IMPL(...) __VA_ARGS__
#define DEFINE_MDNODE_GET_UNPACK(ARGS) DEFINE_MDNODE_GET_UNPACK_IMPL ARGS
#define DEFINE_MDNODE_GET_DISTINCT_TEMPORARY(CLASS, FORMAL, ARGS) \
static CLASS *getDistinct(LLVMContext &Context, \
DEFINE_MDNODE_GET_UNPACK(FORMAL)) { \
return getImpl(Context, DEFINE_MDNODE_GET_UNPACK(ARGS), Distinct); \
} \
static Temp##CLASS getTemporary(LLVMContext &Context, \
DEFINE_MDNODE_GET_UNPACK(FORMAL)) { \
return Temp##CLASS( \
getImpl(Context, DEFINE_MDNODE_GET_UNPACK(ARGS), Temporary)); \
}
#define DEFINE_MDNODE_GET(CLASS, FORMAL, ARGS) \
static CLASS *get(LLVMContext &Context, DEFINE_MDNODE_GET_UNPACK(FORMAL)) { \
return getImpl(Context, DEFINE_MDNODE_GET_UNPACK(ARGS), Uniqued); \
} \
static CLASS *getIfExists(LLVMContext &Context, \
DEFINE_MDNODE_GET_UNPACK(FORMAL)) { \
return getImpl(Context, DEFINE_MDNODE_GET_UNPACK(ARGS), Uniqued, \
/* ShouldCreate */ false); \
} \
DEFINE_MDNODE_GET_DISTINCT_TEMPORARY(CLASS, FORMAL, ARGS)
namespace llvm {
/// \brief Pointer union between a subclass of DINode and MDString.
///
/// \a DICompositeType can be referenced via an \a MDString unique identifier.
/// This class allows some type safety in the face of that, requiring either a
/// node of a particular type or an \a MDString.
template <class T> class TypedDINodeRef {
const Metadata *MD = nullptr;
public:
TypedDINodeRef() = default;
TypedDINodeRef(std::nullptr_t) {}
/// \brief Construct from a raw pointer.
explicit TypedDINodeRef(const Metadata *MD) : MD(MD) {
assert((!MD || isa<MDString>(MD) || isa<T>(MD)) && "Expected valid ref");
}
template <class U>
TypedDINodeRef(
const TypedDINodeRef<U> &X,
typename std::enable_if<std::is_convertible<U *, T *>::value>::type * =
nullptr)
: MD(X) {}
operator Metadata *() const { return const_cast<Metadata *>(MD); }
bool operator==(const TypedDINodeRef<T> &X) const { return MD == X.MD; }
bool operator!=(const TypedDINodeRef<T> &X) const { return MD != X.MD; }
/// \brief Create a reference.
///
/// Get a reference to \c N, using an \a MDString reference if available.
static TypedDINodeRef get(const T *N);
template <class MapTy> T *resolve(const MapTy &Map) const {
if (!MD)
return nullptr;
if (auto *Typed = dyn_cast<T>(MD))
return const_cast<T *>(Typed);
auto *S = cast<MDString>(MD);
auto I = Map.find(S);
assert(I != Map.end() && "Missing identifier in type map");
return cast<T>(I->second);
}
};
typedef TypedDINodeRef<DINode> DINodeRef;
typedef TypedDINodeRef<DIScope> DIScopeRef;
typedef TypedDINodeRef<DIType> DITypeRef;
class DITypeRefArray {
const MDTuple *N = nullptr;
public:
DITypeRefArray() = default;
DITypeRefArray(const MDTuple *N) : N(N) {}
explicit operator bool() const { return get(); }
explicit operator MDTuple *() const { return get(); }
MDTuple *get() const { return const_cast<MDTuple *>(N); }
MDTuple *operator->() const { return get(); }
MDTuple &operator*() const { return *get(); }
// FIXME: Fix callers and remove condition on N.
unsigned size() const { return N ? N->getNumOperands() : 0u; }
DITypeRef operator[](unsigned I) const { return DITypeRef(N->getOperand(I)); }
class iterator : std::iterator<std::input_iterator_tag, DITypeRef,
std::ptrdiff_t, void, DITypeRef> {
MDNode::op_iterator I = nullptr;
public:
iterator() = default;
explicit iterator(MDNode::op_iterator I) : I(I) {}
DITypeRef operator*() const { return DITypeRef(*I); }
iterator &operator++() {
++I;
return *this;
}
iterator operator++(int) {
iterator Temp(*this);
++I;
return Temp;
}
bool operator==(const iterator &X) const { return I == X.I; }
bool operator!=(const iterator &X) const { return I != X.I; }
};
// FIXME: Fix callers and remove condition on N.
iterator begin() const { return N ? iterator(N->op_begin()) : iterator(); }
iterator end() const { return N ? iterator(N->op_end()) : iterator(); }
};
/// \brief Tagged DWARF-like metadata node.
///
/// A metadata node with a DWARF tag (i.e., a constant named \c DW_TAG_*,
/// defined in llvm/Support/Dwarf.h). Called \a DINode because it's
/// potentially used for non-DWARF output.
class DINode : public MDNode {
friend class LLVMContextImpl;
friend class MDNode;
protected:
DINode(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Tag,
ArrayRef<Metadata *> Ops1, ArrayRef<Metadata *> Ops2 = None)
: MDNode(C, ID, Storage, Ops1, Ops2) {
assert(Tag < 1u << 16);
SubclassData16 = Tag;
}
~DINode() = default;
template <class Ty> Ty *getOperandAs(unsigned I) const {
return cast_or_null<Ty>(getOperand(I));
}
StringRef getStringOperand(unsigned I) const {
if (auto *S = getOperandAs<MDString>(I))
return S->getString();
return StringRef();
}
static MDString *getCanonicalMDString(LLVMContext &Context, StringRef S) {
if (S.empty())
return nullptr;
return MDString::get(Context, S);
}
public:
unsigned getTag() const { return SubclassData16; }
/// \brief Debug info flags.
///
/// The three accessibility flags are mutually exclusive and rolled together
/// in the first two bits.
enum DIFlags {
#define HANDLE_DI_FLAG(ID, NAME) Flag##NAME = ID,
#include "llvm/IR/DebugInfoFlags.def"
FlagAccessibility = FlagPrivate | FlagProtected | FlagPublic
};
static unsigned getFlag(StringRef Flag);
static const char *getFlagString(unsigned Flag);
/// \brief Split up a flags bitfield.
///
/// Split \c Flags into \c SplitFlags, a vector of its components. Returns
/// any remaining (unrecognized) bits.
static unsigned splitFlags(unsigned Flags,
SmallVectorImpl<unsigned> &SplitFlags);
DINodeRef getRef() const { return DINodeRef::get(this); }
static bool classof(const Metadata *MD) {
switch (MD->getMetadataID()) {
default:
return false;
case GenericDINodeKind:
case DISubrangeKind:
case DIEnumeratorKind:
case DIBasicTypeKind:
case DIDerivedTypeKind:
case DICompositeTypeKind:
case DISubroutineTypeKind:
case DIFileKind:
case DICompileUnitKind:
case DISubprogramKind:
case DILexicalBlockKind:
case DILexicalBlockFileKind:
case DINamespaceKind:
case DITemplateTypeParameterKind:
case DITemplateValueParameterKind:
case DIGlobalVariableKind:
case DILocalVariableKind:
case DIObjCPropertyKind:
case DIImportedEntityKind:
case DIModuleKind:
return true;
}
}
};
template <class T> struct simplify_type<const TypedDINodeRef<T>> {
typedef Metadata *SimpleType;
static SimpleType getSimplifiedValue(const TypedDINodeRef<T> &MD) {
return MD;
}
};
template <class T>
struct simplify_type<TypedDINodeRef<T>>
: simplify_type<const TypedDINodeRef<T>> {};
/// \brief Generic tagged DWARF-like metadata node.
///
/// An un-specialized DWARF-like metadata node. The first operand is a
/// (possibly empty) null-separated \a MDString header that contains arbitrary
/// fields. The remaining operands are \a dwarf_operands(), and are pointers
/// to other metadata.
class GenericDINode : public DINode {
friend class LLVMContextImpl;
friend class MDNode;
GenericDINode(LLVMContext &C, StorageType Storage, unsigned Hash,
unsigned Tag, ArrayRef<Metadata *> Ops1,
ArrayRef<Metadata *> Ops2)
: DINode(C, GenericDINodeKind, Storage, Tag, Ops1, Ops2) {
setHash(Hash);
}
~GenericDINode() { dropAllReferences(); }
void setHash(unsigned Hash) { SubclassData32 = Hash; }
void recalculateHash();
static GenericDINode *getImpl(LLVMContext &Context, unsigned Tag,
StringRef Header, ArrayRef<Metadata *> DwarfOps,
StorageType Storage, bool ShouldCreate = true) {
return getImpl(Context, Tag, getCanonicalMDString(Context, Header),
DwarfOps, Storage, ShouldCreate);
}
static GenericDINode *getImpl(LLVMContext &Context, unsigned Tag,
MDString *Header, ArrayRef<Metadata *> DwarfOps,
StorageType Storage, bool ShouldCreate = true);
TempGenericDINode cloneImpl() const {
return getTemporary(
getContext(), getTag(), getHeader(),
SmallVector<Metadata *, 4>(dwarf_op_begin(), dwarf_op_end()));
}
public:
unsigned getHash() const { return SubclassData32; }
DEFINE_MDNODE_GET(GenericDINode, (unsigned Tag, StringRef Header,
ArrayRef<Metadata *> DwarfOps),
(Tag, Header, DwarfOps))
DEFINE_MDNODE_GET(GenericDINode, (unsigned Tag, MDString *Header,
ArrayRef<Metadata *> DwarfOps),
(Tag, Header, DwarfOps))
/// \brief Return a (temporary) clone of this.
TempGenericDINode clone() const { return cloneImpl(); }
unsigned getTag() const { return SubclassData16; }
StringRef getHeader() const { return getStringOperand(0); }
op_iterator dwarf_op_begin() const { return op_begin() + 1; }
op_iterator dwarf_op_end() const { return op_end(); }
op_range dwarf_operands() const {
return op_range(dwarf_op_begin(), dwarf_op_end());
}
unsigned getNumDwarfOperands() const { return getNumOperands() - 1; }
const MDOperand &getDwarfOperand(unsigned I) const {
return getOperand(I + 1);
}
void replaceDwarfOperandWith(unsigned I, Metadata *New) {
replaceOperandWith(I + 1, New);
}
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == GenericDINodeKind;
}
};
/// \brief Array subrange.
///
/// TODO: Merge into node for DW_TAG_array_type, which should have a custom
/// type.
class DISubrange : public DINode {
friend class LLVMContextImpl;
friend class MDNode;
int64_t Count;
int64_t LowerBound;
DISubrange(LLVMContext &C, StorageType Storage, int64_t Count,
int64_t LowerBound)
: DINode(C, DISubrangeKind, Storage, dwarf::DW_TAG_subrange_type, None),
Count(Count), LowerBound(LowerBound) {}
~DISubrange() = default;
static DISubrange *getImpl(LLVMContext &Context, int64_t Count,
int64_t LowerBound, StorageType Storage,
bool ShouldCreate = true);
TempDISubrange cloneImpl() const {
return getTemporary(getContext(), getCount(), getLowerBound());
}
public:
DEFINE_MDNODE_GET(DISubrange, (int64_t Count, int64_t LowerBound = 0),
(Count, LowerBound))
TempDISubrange clone() const { return cloneImpl(); }
int64_t getLowerBound() const { return LowerBound; }
int64_t getCount() const { return Count; }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DISubrangeKind;
}
};
/// \brief Enumeration value.
///
/// TODO: Add a pointer to the context (DW_TAG_enumeration_type) once that no
/// longer creates a type cycle.
class DIEnumerator : public DINode {
friend class LLVMContextImpl;
friend class MDNode;
int64_t Value;
DIEnumerator(LLVMContext &C, StorageType Storage, int64_t Value,
ArrayRef<Metadata *> Ops)
: DINode(C, DIEnumeratorKind, Storage, dwarf::DW_TAG_enumerator, Ops),
Value(Value) {}
~DIEnumerator() = default;
static DIEnumerator *getImpl(LLVMContext &Context, int64_t Value,
StringRef Name, StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, Value, getCanonicalMDString(Context, Name), Storage,
ShouldCreate);
}
static DIEnumerator *getImpl(LLVMContext &Context, int64_t Value,
MDString *Name, StorageType Storage,
bool ShouldCreate = true);
TempDIEnumerator cloneImpl() const {
return getTemporary(getContext(), getValue(), getName());
}
public:
DEFINE_MDNODE_GET(DIEnumerator, (int64_t Value, StringRef Name),
(Value, Name))
DEFINE_MDNODE_GET(DIEnumerator, (int64_t Value, MDString *Name),
(Value, Name))
TempDIEnumerator clone() const { return cloneImpl(); }
int64_t getValue() const { return Value; }
StringRef getName() const { return getStringOperand(0); }
MDString *getRawName() const { return getOperandAs<MDString>(0); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DIEnumeratorKind;
}
};
/// \brief Base class for scope-like contexts.
///
/// Base class for lexical scopes and types (which are also declaration
/// contexts).
///
/// TODO: Separate the concepts of declaration contexts and lexical scopes.
class DIScope : public DINode {
protected:
DIScope(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Tag,
ArrayRef<Metadata *> Ops)
: DINode(C, ID, Storage, Tag, Ops) {}
~DIScope() = default;
public:
DIFile *getFile() const { return cast_or_null<DIFile>(getRawFile()); }
inline StringRef getFilename() const;
inline StringRef getDirectory() const;
StringRef getName() const;
DIScopeRef getScope() const;
/// \brief Return the raw underlying file.
///
/// An \a DIFile is an \a DIScope, but it doesn't point at a separate file
/// (it\em is the file). If \c this is an \a DIFile, we need to return \c
/// this. Otherwise, return the first operand, which is where all other
/// subclasses store their file pointer.
Metadata *getRawFile() const {
return isa<DIFile>(this) ? const_cast<DIScope *>(this)
: static_cast<Metadata *>(getOperand(0));
}
DIScopeRef getRef() const { return DIScopeRef::get(this); }
static bool classof(const Metadata *MD) {
switch (MD->getMetadataID()) {
default:
return false;
case DIBasicTypeKind:
case DIDerivedTypeKind:
case DICompositeTypeKind:
case DISubroutineTypeKind:
case DIFileKind:
case DICompileUnitKind:
case DISubprogramKind:
case DILexicalBlockKind:
case DILexicalBlockFileKind:
case DINamespaceKind:
case DIModuleKind:
return true;
}
}
};
/// \brief File.
///
/// TODO: Merge with directory/file node (including users).
/// TODO: Canonicalize paths on creation.
class DIFile : public DIScope {
friend class LLVMContextImpl;
friend class MDNode;
DIFile(LLVMContext &C, StorageType Storage, ArrayRef<Metadata *> Ops)
: DIScope(C, DIFileKind, Storage, dwarf::DW_TAG_file_type, Ops) {}
~DIFile() = default;
static DIFile *getImpl(LLVMContext &Context, StringRef Filename,
StringRef Directory, StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, getCanonicalMDString(Context, Filename),
getCanonicalMDString(Context, Directory), Storage,
ShouldCreate);
}
static DIFile *getImpl(LLVMContext &Context, MDString *Filename,
MDString *Directory, StorageType Storage,
bool ShouldCreate = true);
TempDIFile cloneImpl() const {
return getTemporary(getContext(), getFilename(), getDirectory());
}
public:
DEFINE_MDNODE_GET(DIFile, (StringRef Filename, StringRef Directory),
(Filename, Directory))
DEFINE_MDNODE_GET(DIFile, (MDString * Filename, MDString *Directory),
(Filename, Directory))
TempDIFile clone() const { return cloneImpl(); }
StringRef getFilename() const { return getStringOperand(0); }
StringRef getDirectory() const { return getStringOperand(1); }
MDString *getRawFilename() const { return getOperandAs<MDString>(0); }
MDString *getRawDirectory() const { return getOperandAs<MDString>(1); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DIFileKind;
}
};
StringRef DIScope::getFilename() const {
if (auto *F = getFile())
return F->getFilename();
return "";
}
StringRef DIScope::getDirectory() const {
if (auto *F = getFile())
return F->getDirectory();
return "";
}
/// \brief Base class for types.
///
/// TODO: Remove the hardcoded name and context, since many types don't use
/// them.
/// TODO: Split up flags.
class DIType : public DIScope {
unsigned Line;
unsigned Flags;
uint64_t SizeInBits;
uint64_t AlignInBits;
uint64_t OffsetInBits;
protected:
DIType(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Tag,
unsigned Line, uint64_t SizeInBits, uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags, ArrayRef<Metadata *> Ops)
: DIScope(C, ID, Storage, Tag, Ops), Line(Line), Flags(Flags),
SizeInBits(SizeInBits), AlignInBits(AlignInBits),
OffsetInBits(OffsetInBits) {}
~DIType() = default;
public:
TempDIType clone() const {
return TempDIType(cast<DIType>(MDNode::clone().release()));
}
unsigned getLine() const { return Line; }
uint64_t getSizeInBits() const { return SizeInBits; }
uint64_t getAlignInBits() const { return AlignInBits; }
uint64_t getOffsetInBits() const { return OffsetInBits; }
unsigned getFlags() const { return Flags; }
DIScopeRef getScope() const { return DIScopeRef(getRawScope()); }
StringRef getName() const { return getStringOperand(2); }
Metadata *getRawScope() const { return getOperand(1); }
MDString *getRawName() const { return getOperandAs<MDString>(2); }
void setFlags(unsigned NewFlags) {
assert(!isUniqued() && "Cannot set flags on uniqued nodes");
Flags = NewFlags;
}
bool isPrivate() const {
return (getFlags() & FlagAccessibility) == FlagPrivate;
}
bool isProtected() const {
return (getFlags() & FlagAccessibility) == FlagProtected;
}
bool isPublic() const {
return (getFlags() & FlagAccessibility) == FlagPublic;
}
bool isForwardDecl() const { return getFlags() & FlagFwdDecl; }
bool isAppleBlockExtension() const { return getFlags() & FlagAppleBlock; }
bool isBlockByrefStruct() const { return getFlags() & FlagBlockByrefStruct; }
bool isVirtual() const { return getFlags() & FlagVirtual; }
bool isArtificial() const { return getFlags() & FlagArtificial; }
bool isObjectPointer() const { return getFlags() & FlagObjectPointer; }
bool isObjcClassComplete() const {
return getFlags() & FlagObjcClassComplete;
}
bool isVector() const { return getFlags() & FlagVector; }
bool isStaticMember() const { return getFlags() & FlagStaticMember; }
bool isLValueReference() const { return getFlags() & FlagLValueReference; }
bool isRValueReference() const { return getFlags() & FlagRValueReference; }
bool isExternalTypeRef() const { return getFlags() & FlagExternalTypeRef; }
DITypeRef getRef() const { return DITypeRef::get(this); }
static bool classof(const Metadata *MD) {
switch (MD->getMetadataID()) {
default:
return false;
case DIBasicTypeKind:
case DIDerivedTypeKind:
case DICompositeTypeKind:
case DISubroutineTypeKind:
return true;
}
}
};
/// \brief Basic type, like 'int' or 'float'.
///
/// TODO: Split out DW_TAG_unspecified_type.
/// TODO: Drop unused accessors.
class DIBasicType : public DIType {
friend class LLVMContextImpl;
friend class MDNode;
unsigned Encoding;
DIBasicType(LLVMContext &C, StorageType Storage, unsigned Tag,
uint64_t SizeInBits, uint64_t AlignInBits, unsigned Encoding,
ArrayRef<Metadata *> Ops)
: DIType(C, DIBasicTypeKind, Storage, Tag, 0, SizeInBits, AlignInBits, 0,
0, Ops),
Encoding(Encoding) {}
~DIBasicType() = default;
static DIBasicType *getImpl(LLVMContext &Context, unsigned Tag,
StringRef Name, uint64_t SizeInBits,
uint64_t AlignInBits, unsigned Encoding,
StorageType Storage, bool ShouldCreate = true) {
return getImpl(Context, Tag, getCanonicalMDString(Context, Name),
SizeInBits, AlignInBits, Encoding, Storage, ShouldCreate);
}
static DIBasicType *getImpl(LLVMContext &Context, unsigned Tag,
MDString *Name, uint64_t SizeInBits,
uint64_t AlignInBits, unsigned Encoding,
StorageType Storage, bool ShouldCreate = true);
TempDIBasicType cloneImpl() const {
return getTemporary(getContext(), getTag(), getName(), getSizeInBits(),
getAlignInBits(), getEncoding());
}
public:
DEFINE_MDNODE_GET(DIBasicType, (unsigned Tag, StringRef Name),
(Tag, Name, 0, 0, 0))
DEFINE_MDNODE_GET(DIBasicType,
(unsigned Tag, StringRef Name, uint64_t SizeInBits,
uint64_t AlignInBits, unsigned Encoding),
(Tag, Name, SizeInBits, AlignInBits, Encoding))
DEFINE_MDNODE_GET(DIBasicType,
(unsigned Tag, MDString *Name, uint64_t SizeInBits,
uint64_t AlignInBits, unsigned Encoding),
(Tag, Name, SizeInBits, AlignInBits, Encoding))
TempDIBasicType clone() const { return cloneImpl(); }
unsigned getEncoding() const { return Encoding; }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DIBasicTypeKind;
}
};
/// \brief Derived types.
///
/// This includes qualified types, pointers, references, friends, typedefs, and
/// class members.
///
/// TODO: Split out members (inheritance, fields, methods, etc.).
class DIDerivedType : public DIType {
friend class LLVMContextImpl;
friend class MDNode;
DIDerivedType(LLVMContext &C, StorageType Storage, unsigned Tag,
unsigned Line, uint64_t SizeInBits, uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags, ArrayRef<Metadata *> Ops)
: DIType(C, DIDerivedTypeKind, Storage, Tag, Line, SizeInBits,
AlignInBits, OffsetInBits, Flags, Ops) {}
~DIDerivedType() = default;
static DIDerivedType *getImpl(LLVMContext &Context, unsigned Tag,
StringRef Name, DIFile *File, unsigned Line,
DIScopeRef Scope, DITypeRef BaseType,
uint64_t SizeInBits, uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags,
Metadata *ExtraData, StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, Tag, getCanonicalMDString(Context, Name), File,
Line, Scope, BaseType, SizeInBits, AlignInBits, OffsetInBits,
Flags, ExtraData, Storage, ShouldCreate);
}
static DIDerivedType *getImpl(LLVMContext &Context, unsigned Tag,
MDString *Name, Metadata *File, unsigned Line,
Metadata *Scope, Metadata *BaseType,
uint64_t SizeInBits, uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags,
Metadata *ExtraData, StorageType Storage,
bool ShouldCreate = true);
TempDIDerivedType cloneImpl() const {
return getTemporary(getContext(), getTag(), getName(), getFile(), getLine(),
getScope(), getBaseType(), getSizeInBits(),
getAlignInBits(), getOffsetInBits(), getFlags(),
getExtraData());
}
public:
DEFINE_MDNODE_GET(DIDerivedType,
(unsigned Tag, MDString *Name, Metadata *File,
unsigned Line, Metadata *Scope, Metadata *BaseType,
uint64_t SizeInBits, uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags,
Metadata *ExtraData = nullptr),
(Tag, Name, File, Line, Scope, BaseType, SizeInBits,
AlignInBits, OffsetInBits, Flags, ExtraData))
DEFINE_MDNODE_GET(DIDerivedType,
(unsigned Tag, StringRef Name, DIFile *File, unsigned Line,
DIScopeRef Scope, DITypeRef BaseType, uint64_t SizeInBits,
uint64_t AlignInBits, uint64_t OffsetInBits,
unsigned Flags, Metadata *ExtraData = nullptr),
(Tag, Name, File, Line, Scope, BaseType, SizeInBits,
AlignInBits, OffsetInBits, Flags, ExtraData))
TempDIDerivedType clone() const { return cloneImpl(); }
//// Get the base type this is derived from.
DITypeRef getBaseType() const { return DITypeRef(getRawBaseType()); }
Metadata *getRawBaseType() const { return getOperand(3); }
/// \brief Get extra data associated with this derived type.
///
/// Class type for pointer-to-members, objective-c property node for ivars,
/// or global constant wrapper for static members.
///
/// TODO: Separate out types that need this extra operand: pointer-to-member
/// types and member fields (static members and ivars).
Metadata *getExtraData() const { return getRawExtraData(); }
Metadata *getRawExtraData() const { return getOperand(4); }
/// \brief Get casted version of extra data.
/// @{
DITypeRef getClassType() const {
assert(getTag() == dwarf::DW_TAG_ptr_to_member_type);
return DITypeRef(getExtraData());
}
DIObjCProperty *getObjCProperty() const {
return dyn_cast_or_null<DIObjCProperty>(getExtraData());
}
Constant *getConstant() const {
assert(getTag() == dwarf::DW_TAG_member && isStaticMember());
if (auto *C = cast_or_null<ConstantAsMetadata>(getExtraData()))
return C->getValue();
return nullptr;
}
/// @}
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DIDerivedTypeKind;
}
};
/// \brief Composite types.
///
/// TODO: Detach from DerivedTypeBase (split out MDEnumType?).
/// TODO: Create a custom, unrelated node for DW_TAG_array_type.
class DICompositeType : public DIType {
friend class LLVMContextImpl;
friend class MDNode;
unsigned RuntimeLang;
DICompositeType(LLVMContext &C, StorageType Storage, unsigned Tag,
unsigned Line, unsigned RuntimeLang, uint64_t SizeInBits,
uint64_t AlignInBits, uint64_t OffsetInBits, unsigned Flags,
ArrayRef<Metadata *> Ops)
: DIType(C, DICompositeTypeKind, Storage, Tag, Line, SizeInBits,
AlignInBits, OffsetInBits, Flags, Ops),
RuntimeLang(RuntimeLang) {}
~DICompositeType() = default;
static DICompositeType *
getImpl(LLVMContext &Context, unsigned Tag, StringRef Name, Metadata *File,
unsigned Line, DIScopeRef Scope, DITypeRef BaseType,
uint64_t SizeInBits, uint64_t AlignInBits, uint64_t OffsetInBits,
uint64_t Flags, DINodeArray Elements, unsigned RuntimeLang,
DITypeRef VTableHolder, DITemplateParameterArray TemplateParams,
StringRef Identifier, StorageType Storage, bool ShouldCreate = true) {
return getImpl(
Context, Tag, getCanonicalMDString(Context, Name), File, Line, Scope,
BaseType, SizeInBits, AlignInBits, OffsetInBits, Flags, Elements.get(),
RuntimeLang, VTableHolder, TemplateParams.get(),
getCanonicalMDString(Context, Identifier), Storage, ShouldCreate);
}
static DICompositeType *
getImpl(LLVMContext &Context, unsigned Tag, MDString *Name, Metadata *File,
unsigned Line, Metadata *Scope, Metadata *BaseType,
uint64_t SizeInBits, uint64_t AlignInBits, uint64_t OffsetInBits,
unsigned Flags, Metadata *Elements, unsigned RuntimeLang,
Metadata *VTableHolder, Metadata *TemplateParams,
MDString *Identifier, StorageType Storage, bool ShouldCreate = true);
TempDICompositeType cloneImpl() const {
return getTemporary(getContext(), getTag(), getName(), getFile(), getLine(),
getScope(), getBaseType(), getSizeInBits(),
getAlignInBits(), getOffsetInBits(), getFlags(),
getElements(), getRuntimeLang(), getVTableHolder(),
getTemplateParams(), getIdentifier());
}
public:
DEFINE_MDNODE_GET(DICompositeType,
(unsigned Tag, StringRef Name, DIFile *File, unsigned Line,
DIScopeRef Scope, DITypeRef BaseType, uint64_t SizeInBits,
uint64_t AlignInBits, uint64_t OffsetInBits,
unsigned Flags, DINodeArray Elements, unsigned RuntimeLang,
DITypeRef VTableHolder,
DITemplateParameterArray TemplateParams = nullptr,
StringRef Identifier = ""),
(Tag, Name, File, Line, Scope, BaseType, SizeInBits,
AlignInBits, OffsetInBits, Flags, Elements, RuntimeLang,
VTableHolder, TemplateParams, Identifier))
DEFINE_MDNODE_GET(DICompositeType,
(unsigned Tag, MDString *Name, Metadata *File,
unsigned Line, Metadata *Scope, Metadata *BaseType,
uint64_t SizeInBits, uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags, Metadata *Elements,
unsigned RuntimeLang, Metadata *VTableHolder,
Metadata *TemplateParams = nullptr,
MDString *Identifier = nullptr),
(Tag, Name, File, Line, Scope, BaseType, SizeInBits,
AlignInBits, OffsetInBits, Flags, Elements, RuntimeLang,
VTableHolder, TemplateParams, Identifier))
TempDICompositeType clone() const { return cloneImpl(); }
DITypeRef getBaseType() const { return DITypeRef(getRawBaseType()); }
DINodeArray getElements() const {
return cast_or_null<MDTuple>(getRawElements());
}
DITypeRef getVTableHolder() const { return DITypeRef(getRawVTableHolder()); }
DITemplateParameterArray getTemplateParams() const {
return cast_or_null<MDTuple>(getRawTemplateParams());
}
StringRef getIdentifier() const { return getStringOperand(7); }
unsigned getRuntimeLang() const { return RuntimeLang; }
Metadata *getRawBaseType() const { return getOperand(3); }
Metadata *getRawElements() const { return getOperand(4); }
Metadata *getRawVTableHolder() const { return getOperand(5); }
Metadata *getRawTemplateParams() const { return getOperand(6); }
MDString *getRawIdentifier() const { return getOperandAs<MDString>(7); }
/// \brief Replace operands.
///
/// If this \a isUniqued() and not \a isResolved(), on a uniquing collision
/// this will be RAUW'ed and deleted. Use a \a TrackingMDRef to keep track
/// of its movement if necessary.
/// @{
void replaceElements(DINodeArray Elements) {
#ifndef NDEBUG
for (DINode *Op : getElements())
assert(std::find(Elements->op_begin(), Elements->op_end(), Op) &&
"Lost a member during member list replacement");
#endif
replaceOperandWith(4, Elements.get());
}
void replaceVTableHolder(DITypeRef VTableHolder) {
replaceOperandWith(5, VTableHolder);
}
void replaceTemplateParams(DITemplateParameterArray TemplateParams) {
replaceOperandWith(6, TemplateParams.get());
}
/// @}
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DICompositeTypeKind;
}
};
template <class T> TypedDINodeRef<T> TypedDINodeRef<T>::get(const T *N) {
if (N)
if (auto *Composite = dyn_cast<DICompositeType>(N))
if (auto *S = Composite->getRawIdentifier())
return TypedDINodeRef<T>(S);
return TypedDINodeRef<T>(N);
}
/// \brief Type array for a subprogram.
///
/// TODO: Fold the array of types in directly as operands.
class DISubroutineType : public DIType {
friend class LLVMContextImpl;
friend class MDNode;
DISubroutineType(LLVMContext &C, StorageType Storage, unsigned Flags,
ArrayRef<Metadata *> Ops)
: DIType(C, DISubroutineTypeKind, Storage, dwarf::DW_TAG_subroutine_type,
0, 0, 0, 0, Flags, Ops) {}
~DISubroutineType() = default;
static DISubroutineType *getImpl(LLVMContext &Context, unsigned Flags,
DITypeRefArray TypeArray,
StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, Flags, TypeArray.get(), Storage, ShouldCreate);
}
static DISubroutineType *getImpl(LLVMContext &Context, unsigned Flags,
Metadata *TypeArray, StorageType Storage,
bool ShouldCreate = true);
TempDISubroutineType cloneImpl() const {
return getTemporary(getContext(), getFlags(), getTypeArray());
}
public:
DEFINE_MDNODE_GET(DISubroutineType,
(unsigned Flags, DITypeRefArray TypeArray),
(Flags, TypeArray))
DEFINE_MDNODE_GET(DISubroutineType, (unsigned Flags, Metadata *TypeArray),
(Flags, TypeArray))
TempDISubroutineType clone() const { return cloneImpl(); }
DITypeRefArray getTypeArray() const {
return cast_or_null<MDTuple>(getRawTypeArray());
}
Metadata *getRawTypeArray() const { return getOperand(3); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DISubroutineTypeKind;
}
};
/// \brief Compile unit.
class DICompileUnit : public DIScope {
friend class LLVMContextImpl;
friend class MDNode;
unsigned SourceLanguage;
bool IsOptimized;
unsigned RuntimeVersion;
unsigned EmissionKind;
uint64_t DWOId;
DICompileUnit(LLVMContext &C, StorageType Storage, unsigned SourceLanguage,
bool IsOptimized, unsigned RuntimeVersion,
unsigned EmissionKind, uint64_t DWOId, ArrayRef<Metadata *> Ops)
: DIScope(C, DICompileUnitKind, Storage, dwarf::DW_TAG_compile_unit, Ops),
SourceLanguage(SourceLanguage), IsOptimized(IsOptimized),
RuntimeVersion(RuntimeVersion), EmissionKind(EmissionKind),
DWOId(DWOId) {
assert(Storage != Uniqued);
}
~DICompileUnit() = default;
static DICompileUnit *
getImpl(LLVMContext &Context, unsigned SourceLanguage, DIFile *File,
StringRef Producer, bool IsOptimized, StringRef Flags,
unsigned RuntimeVersion, StringRef SplitDebugFilename,
unsigned EmissionKind, DICompositeTypeArray EnumTypes,
DITypeArray RetainedTypes, DISubprogramArray Subprograms,
DIGlobalVariableArray GlobalVariables,
DIImportedEntityArray ImportedEntities, DIMacroNodeArray Macros,
uint64_t DWOId, StorageType Storage, bool ShouldCreate = true) {
return getImpl(Context, SourceLanguage, File,
getCanonicalMDString(Context, Producer), IsOptimized,
getCanonicalMDString(Context, Flags), RuntimeVersion,
getCanonicalMDString(Context, SplitDebugFilename),
EmissionKind, EnumTypes.get(), RetainedTypes.get(),
Subprograms.get(), GlobalVariables.get(),
ImportedEntities.get(), Macros.get(), DWOId, Storage,
ShouldCreate);
}
static DICompileUnit *
getImpl(LLVMContext &Context, unsigned SourceLanguage, Metadata *File,
MDString *Producer, bool IsOptimized, MDString *Flags,
unsigned RuntimeVersion, MDString *SplitDebugFilename,
unsigned EmissionKind, Metadata *EnumTypes, Metadata *RetainedTypes,
Metadata *Subprograms, Metadata *GlobalVariables,
Metadata *ImportedEntities, Metadata *Macros, uint64_t DWOId,
StorageType Storage, bool ShouldCreate = true);
TempDICompileUnit cloneImpl() const {
return getTemporary(
getContext(), getSourceLanguage(), getFile(), getProducer(),
isOptimized(), getFlags(), getRuntimeVersion(), getSplitDebugFilename(),
getEmissionKind(), getEnumTypes(), getRetainedTypes(), getSubprograms(),
getGlobalVariables(), getImportedEntities(), getMacros(), DWOId);
}
static void get() = delete;
static void getIfExists() = delete;
public:
DEFINE_MDNODE_GET_DISTINCT_TEMPORARY(
DICompileUnit,
(unsigned SourceLanguage, DIFile *File, StringRef Producer,
bool IsOptimized, StringRef Flags, unsigned RuntimeVersion,
StringRef SplitDebugFilename, unsigned EmissionKind,
DICompositeTypeArray EnumTypes, DITypeArray RetainedTypes,
DISubprogramArray Subprograms, DIGlobalVariableArray GlobalVariables,
DIImportedEntityArray ImportedEntities, DIMacroNodeArray Macros,
uint64_t DWOId),
(SourceLanguage, File, Producer, IsOptimized, Flags, RuntimeVersion,
SplitDebugFilename, EmissionKind, EnumTypes, RetainedTypes, Subprograms,
GlobalVariables, ImportedEntities, Macros, DWOId))
DEFINE_MDNODE_GET_DISTINCT_TEMPORARY(
DICompileUnit,
(unsigned SourceLanguage, Metadata *File, MDString *Producer,
bool IsOptimized, MDString *Flags, unsigned RuntimeVersion,
MDString *SplitDebugFilename, unsigned EmissionKind, Metadata *EnumTypes,
Metadata *RetainedTypes, Metadata *Subprograms,
Metadata *GlobalVariables, Metadata *ImportedEntities, Metadata *Macros,
uint64_t DWOId),
(SourceLanguage, File, Producer, IsOptimized, Flags, RuntimeVersion,
SplitDebugFilename, EmissionKind, EnumTypes, RetainedTypes, Subprograms,
GlobalVariables, ImportedEntities, Macros, DWOId))
TempDICompileUnit clone() const { return cloneImpl(); }
unsigned getSourceLanguage() const { return SourceLanguage; }
bool isOptimized() const { return IsOptimized; }
unsigned getRuntimeVersion() const { return RuntimeVersion; }
unsigned getEmissionKind() const { return EmissionKind; }
StringRef getProducer() const { return getStringOperand(1); }
StringRef getFlags() const { return getStringOperand(2); }
StringRef getSplitDebugFilename() const { return getStringOperand(3); }
DICompositeTypeArray getEnumTypes() const {
return cast_or_null<MDTuple>(getRawEnumTypes());
}
DITypeArray getRetainedTypes() const {
return cast_or_null<MDTuple>(getRawRetainedTypes());
}
DISubprogramArray getSubprograms() const {
return cast_or_null<MDTuple>(getRawSubprograms());
}
DIGlobalVariableArray getGlobalVariables() const {
return cast_or_null<MDTuple>(getRawGlobalVariables());
}
DIImportedEntityArray getImportedEntities() const {
return cast_or_null<MDTuple>(getRawImportedEntities());
}
DIMacroNodeArray getMacros() const {
return cast_or_null<MDTuple>(getRawMacros());
}
uint64_t getDWOId() const { return DWOId; }
void setDWOId(uint64_t DwoId) { DWOId = DwoId; }
MDString *getRawProducer() const { return getOperandAs<MDString>(1); }
MDString *getRawFlags() const { return getOperandAs<MDString>(2); }
MDString *getRawSplitDebugFilename() const {
return getOperandAs<MDString>(3);
}
Metadata *getRawEnumTypes() const { return getOperand(4); }
Metadata *getRawRetainedTypes() const { return getOperand(5); }
Metadata *getRawSubprograms() const { return getOperand(6); }
Metadata *getRawGlobalVariables() const { return getOperand(7); }
Metadata *getRawImportedEntities() const { return getOperand(8); }
Metadata *getRawMacros() const { return getOperand(9); }
/// \brief Replace arrays.
///
/// If this \a isUniqued() and not \a isResolved(), it will be RAUW'ed and
/// deleted on a uniquing collision. In practice, uniquing collisions on \a
/// DICompileUnit should be fairly rare.
/// @{
void replaceEnumTypes(DICompositeTypeArray N) {
replaceOperandWith(4, N.get());
}
void replaceRetainedTypes(DITypeArray N) {
replaceOperandWith(5, N.get());
}
void replaceSubprograms(DISubprogramArray N) {
replaceOperandWith(6, N.get());
}
void replaceGlobalVariables(DIGlobalVariableArray N) {
replaceOperandWith(7, N.get());
}
void replaceImportedEntities(DIImportedEntityArray N) {
replaceOperandWith(8, N.get());
}
void replaceMacros(DIMacroNodeArray N) { replaceOperandWith(9, N.get()); }
/// @}
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DICompileUnitKind;
}
};
/// \brief A scope for locals.
///
/// A legal scope for lexical blocks, local variables, and debug info
/// locations. Subclasses are \a DISubprogram, \a DILexicalBlock, and \a
/// DILexicalBlockFile.
class DILocalScope : public DIScope {
protected:
DILocalScope(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Tag,
ArrayRef<Metadata *> Ops)
: DIScope(C, ID, Storage, Tag, Ops) {}
~DILocalScope() = default;
public:
/// \brief Get the subprogram for this scope.
///
/// Return this if it's an \a DISubprogram; otherwise, look up the scope
/// chain.
DISubprogram *getSubprogram() const;
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DISubprogramKind ||
MD->getMetadataID() == DILexicalBlockKind ||
MD->getMetadataID() == DILexicalBlockFileKind;
}
};
/// \brief Debug location.
///
/// A debug location in source code, used for debug info and otherwise.
class DILocation : public MDNode {
friend class LLVMContextImpl;
friend class MDNode;
DILocation(LLVMContext &C, StorageType Storage, unsigned Line,
unsigned Column, ArrayRef<Metadata *> MDs);
~DILocation() { dropAllReferences(); }
static DILocation *getImpl(LLVMContext &Context, unsigned Line,
unsigned Column, Metadata *Scope,
Metadata *InlinedAt, StorageType Storage,
bool ShouldCreate = true);
static DILocation *getImpl(LLVMContext &Context, unsigned Line,
unsigned Column, DILocalScope *Scope,
DILocation *InlinedAt, StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, Line, Column, static_cast<Metadata *>(Scope),
static_cast<Metadata *>(InlinedAt), Storage, ShouldCreate);
}
TempDILocation cloneImpl() const {
// Get the raw scope/inlinedAt since it is possible to invoke this on
// a DILocation containing temporary metadata.
return getTemporary(getContext(), getLine(), getColumn(), getRawScope(),
getRawInlinedAt());
}
// Disallow replacing operands.
void replaceOperandWith(unsigned I, Metadata *New) = delete;
public:
DEFINE_MDNODE_GET(DILocation,
(unsigned Line, unsigned Column, Metadata *Scope,
Metadata *InlinedAt = nullptr),
(Line, Column, Scope, InlinedAt))
DEFINE_MDNODE_GET(DILocation,
(unsigned Line, unsigned Column, DILocalScope *Scope,
DILocation *InlinedAt = nullptr),
(Line, Column, Scope, InlinedAt))
/// \brief Return a (temporary) clone of this.
TempDILocation clone() const { return cloneImpl(); }
unsigned getLine() const { return SubclassData32; }
unsigned getColumn() const { return SubclassData16; }
DILocalScope *getScope() const { return cast<DILocalScope>(getRawScope()); }
DILocation *getInlinedAt() const {
return cast_or_null<DILocation>(getRawInlinedAt());
}
DIFile *getFile() const { return getScope()->getFile(); }
StringRef getFilename() const { return getScope()->getFilename(); }
StringRef getDirectory() const { return getScope()->getDirectory(); }
/// \brief Get the scope where this is inlined.
///
/// Walk through \a getInlinedAt() and return \a getScope() from the deepest
/// location.
DILocalScope *getInlinedAtScope() const {
if (auto *IA = getInlinedAt())
return IA->getInlinedAtScope();
return getScope();
}
/// \brief Check whether this can be discriminated from another location.
///
/// Check \c this can be discriminated from \c RHS in a linetable entry.
/// Scope and inlined-at chains are not recorded in the linetable, so they
/// cannot be used to distinguish basic blocks.
///
/// The current implementation is weaker than it should be, since it just
/// checks filename and line.
///
/// FIXME: Add a check for getDiscriminator().
/// FIXME: Add a check for getColumn().
/// FIXME: Change the getFilename() check to getFile() (or add one for
/// getDirectory()).
bool canDiscriminate(const DILocation &RHS) const {
return getFilename() != RHS.getFilename() || getLine() != RHS.getLine();
}
/// \brief Get the DWARF discriminator.
///
/// DWARF discriminators distinguish identical file locations between
/// instructions that are on different basic blocks.
inline unsigned getDiscriminator() const;
/// \brief Compute new discriminator in the given context.
///
/// This modifies the \a LLVMContext that \c this is in to increment the next
/// discriminator for \c this's line/filename combination.
///
/// FIXME: Delete this. See comments in implementation and at the only call
/// site in \a AddDiscriminators::runOnFunction().
unsigned computeNewDiscriminator() const;
Metadata *getRawScope() const { return getOperand(0); }
Metadata *getRawInlinedAt() const {
if (getNumOperands() == 2)
return getOperand(1);
return nullptr;
}
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DILocationKind;
}
};
/// \brief Subprogram description.
///
/// TODO: Remove DisplayName. It's always equal to Name.
/// TODO: Split up flags.
class DISubprogram : public DILocalScope {
friend class LLVMContextImpl;
friend class MDNode;
unsigned Line;
unsigned ScopeLine;
unsigned Virtuality;
unsigned VirtualIndex;
unsigned Flags;
bool IsLocalToUnit;
bool IsDefinition;
bool IsOptimized;
DISubprogram(LLVMContext &C, StorageType Storage, unsigned Line,
unsigned ScopeLine, unsigned Virtuality, unsigned VirtualIndex,
unsigned Flags, bool IsLocalToUnit, bool IsDefinition,
bool IsOptimized, ArrayRef<Metadata *> Ops)
: DILocalScope(C, DISubprogramKind, Storage, dwarf::DW_TAG_subprogram,
Ops),
Line(Line), ScopeLine(ScopeLine), Virtuality(Virtuality),
VirtualIndex(VirtualIndex), Flags(Flags), IsLocalToUnit(IsLocalToUnit),
IsDefinition(IsDefinition), IsOptimized(IsOptimized) {}
~DISubprogram() = default;
static DISubprogram *
getImpl(LLVMContext &Context, DIScopeRef Scope, StringRef Name,
StringRef LinkageName, DIFile *File, unsigned Line,
DISubroutineType *Type, bool IsLocalToUnit, bool IsDefinition,
unsigned ScopeLine, DITypeRef ContainingType, unsigned Virtuality,
unsigned VirtualIndex, unsigned Flags, bool IsOptimized,
DITemplateParameterArray TemplateParams, DISubprogram *Declaration,
DILocalVariableArray Variables, StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, Scope, getCanonicalMDString(Context, Name),
getCanonicalMDString(Context, LinkageName), File, Line, Type,
IsLocalToUnit, IsDefinition, ScopeLine, ContainingType,
Virtuality, VirtualIndex, Flags, IsOptimized,
TemplateParams.get(), Declaration, Variables.get(), Storage,
ShouldCreate);
}
static DISubprogram *
getImpl(LLVMContext &Context, Metadata *Scope, MDString *Name,
MDString *LinkageName, Metadata *File, unsigned Line, Metadata *Type,
bool IsLocalToUnit, bool IsDefinition, unsigned ScopeLine,
Metadata *ContainingType, unsigned Virtuality, unsigned VirtualIndex,
unsigned Flags, bool IsOptimized, Metadata *TemplateParams,
Metadata *Declaration, Metadata *Variables, StorageType Storage,
bool ShouldCreate = true);
TempDISubprogram cloneImpl() const {
return getTemporary(
getContext(), getScope(), getName(), getLinkageName(), getFile(),
getLine(), getType(), isLocalToUnit(), isDefinition(), getScopeLine(),
getContainingType(), getVirtuality(), getVirtualIndex(), getFlags(),
isOptimized(), getTemplateParams(), getDeclaration(), getVariables());
}
public:
DEFINE_MDNODE_GET(DISubprogram,
(DIScopeRef Scope, StringRef Name, StringRef LinkageName,
DIFile *File, unsigned Line, DISubroutineType *Type,
bool IsLocalToUnit, bool IsDefinition, unsigned ScopeLine,
DITypeRef ContainingType, unsigned Virtuality,
unsigned VirtualIndex, unsigned Flags, bool IsOptimized,
DITemplateParameterArray TemplateParams = nullptr,
DISubprogram *Declaration = nullptr,
DILocalVariableArray Variables = nullptr),
(Scope, Name, LinkageName, File, Line, Type, IsLocalToUnit,
IsDefinition, ScopeLine, ContainingType, Virtuality,
VirtualIndex, Flags, IsOptimized, TemplateParams,
Declaration, Variables))
DEFINE_MDNODE_GET(
DISubprogram,
(Metadata * Scope, MDString *Name, MDString *LinkageName, Metadata *File,
unsigned Line, Metadata *Type, bool IsLocalToUnit, bool IsDefinition,
unsigned ScopeLine, Metadata *ContainingType, unsigned Virtuality,
unsigned VirtualIndex, unsigned Flags, bool IsOptimized,
Metadata *TemplateParams = nullptr, Metadata *Declaration = nullptr,
Metadata *Variables = nullptr),
(Scope, Name, LinkageName, File, Line, Type, IsLocalToUnit, IsDefinition,
ScopeLine, ContainingType, Virtuality, VirtualIndex, Flags, IsOptimized,
TemplateParams, Declaration, Variables))
TempDISubprogram clone() const { return cloneImpl(); }
public:
unsigned getLine() const { return Line; }
unsigned getVirtuality() const { return Virtuality; }
unsigned getVirtualIndex() const { return VirtualIndex; }
unsigned getScopeLine() const { return ScopeLine; }
unsigned getFlags() const { return Flags; }
bool isLocalToUnit() const { return IsLocalToUnit; }
bool isDefinition() const { return IsDefinition; }
bool isOptimized() const { return IsOptimized; }
unsigned isArtificial() const { return getFlags() & FlagArtificial; }
bool isPrivate() const {
return (getFlags() & FlagAccessibility) == FlagPrivate;
}
bool isProtected() const {
return (getFlags() & FlagAccessibility) == FlagProtected;
}
bool isPublic() const {
return (getFlags() & FlagAccessibility) == FlagPublic;
}
bool isExplicit() const { return getFlags() & FlagExplicit; }
bool isPrototyped() const { return getFlags() & FlagPrototyped; }
/// \brief Check if this is reference-qualified.
///
/// Return true if this subprogram is a C++11 reference-qualified non-static
/// member function (void foo() &).
unsigned isLValueReference() const {
return getFlags() & FlagLValueReference;
}
/// \brief Check if this is rvalue-reference-qualified.
///
/// Return true if this subprogram is a C++11 rvalue-reference-qualified
/// non-static member function (void foo() &&).
unsigned isRValueReference() const {
return getFlags() & FlagRValueReference;
}
DIScopeRef getScope() const { return DIScopeRef(getRawScope()); }
StringRef getName() const { return getStringOperand(2); }
StringRef getDisplayName() const { return getStringOperand(3); }
StringRef getLinkageName() const { return getStringOperand(4); }
MDString *getRawName() const { return getOperandAs<MDString>(2); }
MDString *getRawLinkageName() const { return getOperandAs<MDString>(4); }
DISubroutineType *getType() const {
return cast_or_null<DISubroutineType>(getRawType());
}
DITypeRef getContainingType() const {
return DITypeRef(getRawContainingType());
}
DITemplateParameterArray getTemplateParams() const {
return cast_or_null<MDTuple>(getRawTemplateParams());
}
DISubprogram *getDeclaration() const {
return cast_or_null<DISubprogram>(getRawDeclaration());
}
DILocalVariableArray getVariables() const {
return cast_or_null<MDTuple>(getRawVariables());
}
Metadata *getRawScope() const { return getOperand(1); }
Metadata *getRawType() const { return getOperand(5); }
Metadata *getRawContainingType() const { return getOperand(6); }
Metadata *getRawTemplateParams() const { return getOperand(7); }
Metadata *getRawDeclaration() const { return getOperand(8); }
Metadata *getRawVariables() const { return getOperand(9); }
/// \brief Check if this subprogram describes the given function.
///
/// FIXME: Should this be looking through bitcasts?
bool describes(const Function *F) const;
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DISubprogramKind;
}
};
class DILexicalBlockBase : public DILocalScope {
protected:
DILexicalBlockBase(LLVMContext &C, unsigned ID, StorageType Storage,
ArrayRef<Metadata *> Ops)
: DILocalScope(C, ID, Storage, dwarf::DW_TAG_lexical_block, Ops) {}
~DILexicalBlockBase() = default;
public:
DILocalScope *getScope() const { return cast<DILocalScope>(getRawScope()); }
Metadata *getRawScope() const { return getOperand(1); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DILexicalBlockKind ||
MD->getMetadataID() == DILexicalBlockFileKind;
}
};
class DILexicalBlock : public DILexicalBlockBase {
friend class LLVMContextImpl;
friend class MDNode;
unsigned Line;
uint16_t Column;
DILexicalBlock(LLVMContext &C, StorageType Storage, unsigned Line,
unsigned Column, ArrayRef<Metadata *> Ops)
: DILexicalBlockBase(C, DILexicalBlockKind, Storage, Ops), Line(Line),
Column(Column) {
assert(Column < (1u << 16) && "Expected 16-bit column");
}
~DILexicalBlock() = default;
static DILexicalBlock *getImpl(LLVMContext &Context, DILocalScope *Scope,
DIFile *File, unsigned Line, unsigned Column,
StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, static_cast<Metadata *>(Scope),
static_cast<Metadata *>(File), Line, Column, Storage,
ShouldCreate);
}
static DILexicalBlock *getImpl(LLVMContext &Context, Metadata *Scope,
Metadata *File, unsigned Line, unsigned Column,
StorageType Storage, bool ShouldCreate = true);
TempDILexicalBlock cloneImpl() const {
return getTemporary(getContext(), getScope(), getFile(), getLine(),
getColumn());
}
public:
DEFINE_MDNODE_GET(DILexicalBlock, (DILocalScope * Scope, DIFile *File,
unsigned Line, unsigned Column),
(Scope, File, Line, Column))
DEFINE_MDNODE_GET(DILexicalBlock, (Metadata * Scope, Metadata *File,
unsigned Line, unsigned Column),
(Scope, File, Line, Column))
TempDILexicalBlock clone() const { return cloneImpl(); }
unsigned getLine() const { return Line; }
unsigned getColumn() const { return Column; }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DILexicalBlockKind;
}
};
class DILexicalBlockFile : public DILexicalBlockBase {
friend class LLVMContextImpl;
friend class MDNode;
unsigned Discriminator;
DILexicalBlockFile(LLVMContext &C, StorageType Storage,
unsigned Discriminator, ArrayRef<Metadata *> Ops)
: DILexicalBlockBase(C, DILexicalBlockFileKind, Storage, Ops),
Discriminator(Discriminator) {}
~DILexicalBlockFile() = default;
static DILexicalBlockFile *getImpl(LLVMContext &Context, DILocalScope *Scope,
DIFile *File, unsigned Discriminator,
StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, static_cast<Metadata *>(Scope),
static_cast<Metadata *>(File), Discriminator, Storage,
ShouldCreate);
}
static DILexicalBlockFile *getImpl(LLVMContext &Context, Metadata *Scope,
Metadata *File, unsigned Discriminator,
StorageType Storage,
bool ShouldCreate = true);
TempDILexicalBlockFile cloneImpl() const {
return getTemporary(getContext(), getScope(), getFile(),
getDiscriminator());
}
public:
DEFINE_MDNODE_GET(DILexicalBlockFile, (DILocalScope * Scope, DIFile *File,
unsigned Discriminator),
(Scope, File, Discriminator))
DEFINE_MDNODE_GET(DILexicalBlockFile,
(Metadata * Scope, Metadata *File, unsigned Discriminator),
(Scope, File, Discriminator))
TempDILexicalBlockFile clone() const { return cloneImpl(); }
// TODO: Remove these once they're gone from DILexicalBlockBase.
unsigned getLine() const = delete;
unsigned getColumn() const = delete;
unsigned getDiscriminator() const { return Discriminator; }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DILexicalBlockFileKind;
}
};
unsigned DILocation::getDiscriminator() const {
if (auto *F = dyn_cast<DILexicalBlockFile>(getScope()))
return F->getDiscriminator();
return 0;
}
class DINamespace : public DIScope {
friend class LLVMContextImpl;
friend class MDNode;
unsigned Line;
DINamespace(LLVMContext &Context, StorageType Storage, unsigned Line,
ArrayRef<Metadata *> Ops)
: DIScope(Context, DINamespaceKind, Storage, dwarf::DW_TAG_namespace,
Ops),
Line(Line) {}
~DINamespace() = default;
static DINamespace *getImpl(LLVMContext &Context, DIScope *Scope,
DIFile *File, StringRef Name, unsigned Line,
StorageType Storage, bool ShouldCreate = true) {
return getImpl(Context, Scope, File, getCanonicalMDString(Context, Name),
Line, Storage, ShouldCreate);
}
static DINamespace *getImpl(LLVMContext &Context, Metadata *Scope,
Metadata *File, MDString *Name, unsigned Line,
StorageType Storage, bool ShouldCreate = true);
TempDINamespace cloneImpl() const {
return getTemporary(getContext(), getScope(), getFile(), getName(),
getLine());
}
public:
DEFINE_MDNODE_GET(DINamespace, (DIScope * Scope, DIFile *File, StringRef Name,
unsigned Line),
(Scope, File, Name, Line))
DEFINE_MDNODE_GET(DINamespace, (Metadata * Scope, Metadata *File,
MDString *Name, unsigned Line),
(Scope, File, Name, Line))
TempDINamespace clone() const { return cloneImpl(); }
unsigned getLine() const { return Line; }
DIScope *getScope() const { return cast_or_null<DIScope>(getRawScope()); }
StringRef getName() const { return getStringOperand(2); }
Metadata *getRawScope() const { return getOperand(1); }
MDString *getRawName() const { return getOperandAs<MDString>(2); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DINamespaceKind;
}
};
/// \brief A (clang) module that has been imported by the compile unit.
///
class DIModule : public DIScope {
friend class LLVMContextImpl;
friend class MDNode;
DIModule(LLVMContext &Context, StorageType Storage, ArrayRef<Metadata *> Ops)
: DIScope(Context, DIModuleKind, Storage, dwarf::DW_TAG_module, Ops) {}
~DIModule() {}
static DIModule *getImpl(LLVMContext &Context, DIScope *Scope,
StringRef Name, StringRef ConfigurationMacros,
StringRef IncludePath, StringRef ISysRoot,
StorageType Storage, bool ShouldCreate = true) {
return getImpl(Context, Scope, getCanonicalMDString(Context, Name),
getCanonicalMDString(Context, ConfigurationMacros),
getCanonicalMDString(Context, IncludePath),
getCanonicalMDString(Context, ISysRoot),
Storage, ShouldCreate);
}
static DIModule *getImpl(LLVMContext &Context, Metadata *Scope,
MDString *Name, MDString *ConfigurationMacros,
MDString *IncludePath, MDString *ISysRoot,
StorageType Storage, bool ShouldCreate = true);
TempDIModule cloneImpl() const {
return getTemporary(getContext(), getScope(), getName(),
getConfigurationMacros(), getIncludePath(),
getISysRoot());
}
public:
DEFINE_MDNODE_GET(DIModule, (DIScope *Scope, StringRef Name,
StringRef ConfigurationMacros, StringRef IncludePath,
StringRef ISysRoot),
(Scope, Name, ConfigurationMacros, IncludePath, ISysRoot))
DEFINE_MDNODE_GET(DIModule,
(Metadata *Scope, MDString *Name, MDString *ConfigurationMacros,
MDString *IncludePath, MDString *ISysRoot),
(Scope, Name, ConfigurationMacros, IncludePath, ISysRoot))
TempDIModule clone() const { return cloneImpl(); }
DIScope *getScope() const { return cast_or_null<DIScope>(getRawScope()); }
StringRef getName() const { return getStringOperand(1); }
StringRef getConfigurationMacros() const { return getStringOperand(2); }
StringRef getIncludePath() const { return getStringOperand(3); }
StringRef getISysRoot() const { return getStringOperand(4); }
Metadata *getRawScope() const { return getOperand(0); }
MDString *getRawName() const { return getOperandAs<MDString>(1); }
MDString *getRawConfigurationMacros() const { return getOperandAs<MDString>(2); }
MDString *getRawIncludePath() const { return getOperandAs<MDString>(3); }
MDString *getRawISysRoot() const { return getOperandAs<MDString>(4); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DIModuleKind;
}
};
/// \brief Base class for template parameters.
class DITemplateParameter : public DINode {
protected:
DITemplateParameter(LLVMContext &Context, unsigned ID, StorageType Storage,
unsigned Tag, ArrayRef<Metadata *> Ops)
: DINode(Context, ID, Storage, Tag, Ops) {}
~DITemplateParameter() = default;
public:
StringRef getName() const { return getStringOperand(0); }
DITypeRef getType() const { return DITypeRef(getRawType()); }
MDString *getRawName() const { return getOperandAs<MDString>(0); }
Metadata *getRawType() const { return getOperand(1); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DITemplateTypeParameterKind ||
MD->getMetadataID() == DITemplateValueParameterKind;
}
};
class DITemplateTypeParameter : public DITemplateParameter {
friend class LLVMContextImpl;
friend class MDNode;
DITemplateTypeParameter(LLVMContext &Context, StorageType Storage,
ArrayRef<Metadata *> Ops)
: DITemplateParameter(Context, DITemplateTypeParameterKind, Storage,
dwarf::DW_TAG_template_type_parameter, Ops) {}
~DITemplateTypeParameter() = default;
static DITemplateTypeParameter *getImpl(LLVMContext &Context, StringRef Name,
DITypeRef Type, StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, getCanonicalMDString(Context, Name), Type, Storage,
ShouldCreate);
}
static DITemplateTypeParameter *getImpl(LLVMContext &Context, MDString *Name,
Metadata *Type, StorageType Storage,
bool ShouldCreate = true);
TempDITemplateTypeParameter cloneImpl() const {
return getTemporary(getContext(), getName(), getType());
}
public:
DEFINE_MDNODE_GET(DITemplateTypeParameter, (StringRef Name, DITypeRef Type),
(Name, Type))
DEFINE_MDNODE_GET(DITemplateTypeParameter, (MDString * Name, Metadata *Type),
(Name, Type))
TempDITemplateTypeParameter clone() const { return cloneImpl(); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DITemplateTypeParameterKind;
}
};
class DITemplateValueParameter : public DITemplateParameter {
friend class LLVMContextImpl;
friend class MDNode;
DITemplateValueParameter(LLVMContext &Context, StorageType Storage,
unsigned Tag, ArrayRef<Metadata *> Ops)
: DITemplateParameter(Context, DITemplateValueParameterKind, Storage, Tag,
Ops) {}
~DITemplateValueParameter() = default;
static DITemplateValueParameter *getImpl(LLVMContext &Context, unsigned Tag,
StringRef Name, DITypeRef Type,
Metadata *Value, StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, Tag, getCanonicalMDString(Context, Name), Type,
Value, Storage, ShouldCreate);
}
static DITemplateValueParameter *getImpl(LLVMContext &Context, unsigned Tag,
MDString *Name, Metadata *Type,
Metadata *Value, StorageType Storage,
bool ShouldCreate = true);
TempDITemplateValueParameter cloneImpl() const {
return getTemporary(getContext(), getTag(), getName(), getType(),
getValue());
}
public:
DEFINE_MDNODE_GET(DITemplateValueParameter, (unsigned Tag, StringRef Name,
DITypeRef Type, Metadata *Value),
(Tag, Name, Type, Value))
DEFINE_MDNODE_GET(DITemplateValueParameter, (unsigned Tag, MDString *Name,
Metadata *Type, Metadata *Value),
(Tag, Name, Type, Value))
TempDITemplateValueParameter clone() const { return cloneImpl(); }
Metadata *getValue() const { return getOperand(2); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DITemplateValueParameterKind;
}
};
/// \brief Base class for variables.
class DIVariable : public DINode {
unsigned Line;
protected:
DIVariable(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Line,
ArrayRef<Metadata *> Ops)
: DINode(C, ID, Storage, dwarf::DW_TAG_variable, Ops), Line(Line) {}
~DIVariable() = default;
public:
unsigned getLine() const { return Line; }
DIScope *getScope() const { return cast_or_null<DIScope>(getRawScope()); }
StringRef getName() const { return getStringOperand(1); }
DIFile *getFile() const { return cast_or_null<DIFile>(getRawFile()); }
DITypeRef getType() const { return DITypeRef(getRawType()); }
StringRef getFilename() const {
if (auto *F = getFile())
return F->getFilename();
return "";
}
StringRef getDirectory() const {
if (auto *F = getFile())
return F->getDirectory();
return "";
}
Metadata *getRawScope() const { return getOperand(0); }
MDString *getRawName() const { return getOperandAs<MDString>(1); }
Metadata *getRawFile() const { return getOperand(2); }
Metadata *getRawType() const { return getOperand(3); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DILocalVariableKind ||
MD->getMetadataID() == DIGlobalVariableKind;
}
};
/// \brief Global variables.
///
/// TODO: Remove DisplayName. It's always equal to Name.
class DIGlobalVariable : public DIVariable {
friend class LLVMContextImpl;
friend class MDNode;
bool IsLocalToUnit;
bool IsDefinition;
DIGlobalVariable(LLVMContext &C, StorageType Storage, unsigned Line,
bool IsLocalToUnit, bool IsDefinition,
ArrayRef<Metadata *> Ops)
: DIVariable(C, DIGlobalVariableKind, Storage, Line, Ops),
IsLocalToUnit(IsLocalToUnit), IsDefinition(IsDefinition) {}
~DIGlobalVariable() = default;
static DIGlobalVariable *
getImpl(LLVMContext &Context, DIScope *Scope, StringRef Name,
StringRef LinkageName, DIFile *File, unsigned Line, DITypeRef Type,
bool IsLocalToUnit, bool IsDefinition, Constant *Variable,
DIDerivedType *StaticDataMemberDeclaration, StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, Scope, getCanonicalMDString(Context, Name),
getCanonicalMDString(Context, LinkageName), File, Line, Type,
IsLocalToUnit, IsDefinition,
Variable ? ConstantAsMetadata::get(Variable) : nullptr,
StaticDataMemberDeclaration, Storage, ShouldCreate);
}
static DIGlobalVariable *
getImpl(LLVMContext &Context, Metadata *Scope, MDString *Name,
MDString *LinkageName, Metadata *File, unsigned Line, Metadata *Type,
bool IsLocalToUnit, bool IsDefinition, Metadata *Variable,
Metadata *StaticDataMemberDeclaration, StorageType Storage,
bool ShouldCreate = true);
TempDIGlobalVariable cloneImpl() const {
return getTemporary(getContext(), getScope(), getName(), getLinkageName(),
getFile(), getLine(), getType(), isLocalToUnit(),
isDefinition(), getVariable(),
getStaticDataMemberDeclaration());
}
public:
DEFINE_MDNODE_GET(DIGlobalVariable,
(DIScope * Scope, StringRef Name, StringRef LinkageName,
DIFile *File, unsigned Line, DITypeRef Type,
bool IsLocalToUnit, bool IsDefinition, Constant *Variable,
DIDerivedType *StaticDataMemberDeclaration),
(Scope, Name, LinkageName, File, Line, Type, IsLocalToUnit,
IsDefinition, Variable, StaticDataMemberDeclaration))
DEFINE_MDNODE_GET(DIGlobalVariable,
(Metadata * Scope, MDString *Name, MDString *LinkageName,
Metadata *File, unsigned Line, Metadata *Type,
bool IsLocalToUnit, bool IsDefinition, Metadata *Variable,
Metadata *StaticDataMemberDeclaration),
(Scope, Name, LinkageName, File, Line, Type, IsLocalToUnit,
IsDefinition, Variable, StaticDataMemberDeclaration))
TempDIGlobalVariable clone() const { return cloneImpl(); }
bool isLocalToUnit() const { return IsLocalToUnit; }
bool isDefinition() const { return IsDefinition; }
StringRef getDisplayName() const { return getStringOperand(4); }
StringRef getLinkageName() const { return getStringOperand(5); }
Constant *getVariable() const {
if (auto *C = cast_or_null<ConstantAsMetadata>(getRawVariable()))
return dyn_cast<Constant>(C->getValue());
return nullptr;
}
DIDerivedType *getStaticDataMemberDeclaration() const {
return cast_or_null<DIDerivedType>(getRawStaticDataMemberDeclaration());
}
MDString *getRawLinkageName() const { return getOperandAs<MDString>(5); }
Metadata *getRawVariable() const { return getOperand(6); }
Metadata *getRawStaticDataMemberDeclaration() const { return getOperand(7); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DIGlobalVariableKind;
}
};
/// \brief Local variable.
///
/// TODO: Split up flags.
class DILocalVariable : public DIVariable {
friend class LLVMContextImpl;
friend class MDNode;
unsigned Arg;
unsigned Flags;
DILocalVariable(LLVMContext &C, StorageType Storage, unsigned Line,
unsigned Arg, unsigned Flags, ArrayRef<Metadata *> Ops)
: DIVariable(C, DILocalVariableKind, Storage, Line, Ops), Arg(Arg),
Flags(Flags) {}
~DILocalVariable() = default;
static DILocalVariable *getImpl(LLVMContext &Context, DIScope *Scope,
StringRef Name, DIFile *File, unsigned Line,
DITypeRef Type, unsigned Arg, unsigned Flags,
StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, Scope, getCanonicalMDString(Context, Name), File,
Line, Type, Arg, Flags, Storage, ShouldCreate);
}
static DILocalVariable *getImpl(LLVMContext &Context, Metadata *Scope,
MDString *Name, Metadata *File, unsigned Line,
Metadata *Type, unsigned Arg, unsigned Flags,
StorageType Storage,
bool ShouldCreate = true);
TempDILocalVariable cloneImpl() const {
return getTemporary(getContext(), getScope(), getName(), getFile(),
getLine(), getType(), getArg(), getFlags());
}
public:
DEFINE_MDNODE_GET(DILocalVariable,
(DILocalScope * Scope, StringRef Name, DIFile *File,
unsigned Line, DITypeRef Type, unsigned Arg,
unsigned Flags),
(Scope, Name, File, Line, Type, Arg, Flags))
DEFINE_MDNODE_GET(DILocalVariable,
(Metadata * Scope, MDString *Name, Metadata *File,
unsigned Line, Metadata *Type, unsigned Arg,
unsigned Flags),
(Scope, Name, File, Line, Type, Arg, Flags))
TempDILocalVariable clone() const { return cloneImpl(); }
/// \brief Get the local scope for this variable.
///
/// Variables must be defined in a local scope.
DILocalScope *getScope() const {
return cast<DILocalScope>(DIVariable::getScope());
}
bool isParameter() const { return Arg; }
unsigned getArg() const { return Arg; }
unsigned getFlags() const { return Flags; }
bool isArtificial() const { return getFlags() & FlagArtificial; }
bool isObjectPointer() const { return getFlags() & FlagObjectPointer; }
/// \brief Check that a location is valid for this variable.
///
/// Check that \c DL exists, is in the same subprogram, and has the same
/// inlined-at location as \c this. (Otherwise, it's not a valid attachment
/// to a \a DbgInfoIntrinsic.)
bool isValidLocationForIntrinsic(const DILocation *DL) const {
return DL && getScope()->getSubprogram() == DL->getScope()->getSubprogram();
}
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DILocalVariableKind;
}
};
/// \brief DWARF expression.
///
/// This is (almost) a DWARF expression that modifies the location of a
/// variable or (or the location of a single piece of a variable).
///
/// FIXME: Instead of DW_OP_plus taking an argument, this should use DW_OP_const
/// and have DW_OP_plus consume the topmost elements on the stack.
///
/// TODO: Co-allocate the expression elements.
/// TODO: Separate from MDNode, or otherwise drop Distinct and Temporary
/// storage types.
class DIExpression : public MDNode {
friend class LLVMContextImpl;
friend class MDNode;
std::vector<uint64_t> Elements;
DIExpression(LLVMContext &C, StorageType Storage, ArrayRef<uint64_t> Elements)
: MDNode(C, DIExpressionKind, Storage, None),
Elements(Elements.begin(), Elements.end()) {}
~DIExpression() = default;
static DIExpression *getImpl(LLVMContext &Context,
ArrayRef<uint64_t> Elements, StorageType Storage,
bool ShouldCreate = true);
TempDIExpression cloneImpl() const {
return getTemporary(getContext(), getElements());
}
public:
DEFINE_MDNODE_GET(DIExpression, (ArrayRef<uint64_t> Elements), (Elements))
TempDIExpression clone() const { return cloneImpl(); }
ArrayRef<uint64_t> getElements() const { return Elements; }
unsigned getNumElements() const { return Elements.size(); }
uint64_t getElement(unsigned I) const {
assert(I < Elements.size() && "Index out of range");
return Elements[I];
}
/// \brief Return whether this is a piece of an aggregate variable.
bool isBitPiece() const;
/// \brief Return the offset of this piece in bits.
uint64_t getBitPieceOffset() const;
/// \brief Return the size of this piece in bits.
uint64_t getBitPieceSize() const;
typedef ArrayRef<uint64_t>::iterator element_iterator;
element_iterator elements_begin() const { return getElements().begin(); }
element_iterator elements_end() const { return getElements().end(); }
/// \brief A lightweight wrapper around an expression operand.
///
/// TODO: Store arguments directly and change \a DIExpression to store a
/// range of these.
class ExprOperand {
const uint64_t *Op;
public:
explicit ExprOperand(const uint64_t *Op) : Op(Op) {}
const uint64_t *get() const { return Op; }
/// \brief Get the operand code.
uint64_t getOp() const { return *Op; }
/// \brief Get an argument to the operand.
///
/// Never returns the operand itself.
uint64_t getArg(unsigned I) const { return Op[I + 1]; }
unsigned getNumArgs() const { return getSize() - 1; }
/// \brief Return the size of the operand.
///
/// Return the number of elements in the operand (1 + args).
unsigned getSize() const;
};
/// \brief An iterator for expression operands.
class expr_op_iterator
: public std::iterator<std::input_iterator_tag, ExprOperand> {
ExprOperand Op;
public:
explicit expr_op_iterator(element_iterator I) : Op(I) {}
element_iterator getBase() const { return Op.get(); }
const ExprOperand &operator*() const { return Op; }
const ExprOperand *operator->() const { return &Op; }
expr_op_iterator &operator++() {
increment();
return *this;
}
expr_op_iterator operator++(int) {
expr_op_iterator T(*this);
increment();
return T;
}
/// \brief Get the next iterator.
///
/// \a std::next() doesn't work because this is technically an
/// input_iterator, but it's a perfectly valid operation. This is an
/// accessor to provide the same functionality.
expr_op_iterator getNext() const { return ++expr_op_iterator(*this); }
bool operator==(const expr_op_iterator &X) const {
return getBase() == X.getBase();
}
bool operator!=(const expr_op_iterator &X) const {
return getBase() != X.getBase();
}
private:
void increment() { Op = ExprOperand(getBase() + Op.getSize()); }
};
/// \brief Visit the elements via ExprOperand wrappers.
///
/// These range iterators visit elements through \a ExprOperand wrappers.
/// This is not guaranteed to be a valid range unless \a isValid() gives \c
/// true.
///
/// \pre \a isValid() gives \c true.
/// @{
expr_op_iterator expr_op_begin() const {
return expr_op_iterator(elements_begin());
}
expr_op_iterator expr_op_end() const {
return expr_op_iterator(elements_end());
}
/// @}
bool isValid() const;
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DIExpressionKind;
}
};
class DIObjCProperty : public DINode {
friend class LLVMContextImpl;
friend class MDNode;
unsigned Line;
unsigned Attributes;
DIObjCProperty(LLVMContext &C, StorageType Storage, unsigned Line,
unsigned Attributes, ArrayRef<Metadata *> Ops)
: DINode(C, DIObjCPropertyKind, Storage, dwarf::DW_TAG_APPLE_property,
Ops),
Line(Line), Attributes(Attributes) {}
~DIObjCProperty() = default;
static DIObjCProperty *
getImpl(LLVMContext &Context, StringRef Name, DIFile *File, unsigned Line,
StringRef GetterName, StringRef SetterName, unsigned Attributes,
DITypeRef Type, StorageType Storage, bool ShouldCreate = true) {
return getImpl(Context, getCanonicalMDString(Context, Name), File, Line,
getCanonicalMDString(Context, GetterName),
getCanonicalMDString(Context, SetterName), Attributes, Type,
Storage, ShouldCreate);
}
static DIObjCProperty *getImpl(LLVMContext &Context, MDString *Name,
Metadata *File, unsigned Line,
MDString *GetterName, MDString *SetterName,
unsigned Attributes, Metadata *Type,
StorageType Storage, bool ShouldCreate = true);
TempDIObjCProperty cloneImpl() const {
return getTemporary(getContext(), getName(), getFile(), getLine(),
getGetterName(), getSetterName(), getAttributes(),
getType());
}
public:
DEFINE_MDNODE_GET(DIObjCProperty,
(StringRef Name, DIFile *File, unsigned Line,
StringRef GetterName, StringRef SetterName,
unsigned Attributes, DITypeRef Type),
(Name, File, Line, GetterName, SetterName, Attributes,
Type))
DEFINE_MDNODE_GET(DIObjCProperty,
(MDString * Name, Metadata *File, unsigned Line,
MDString *GetterName, MDString *SetterName,
unsigned Attributes, Metadata *Type),
(Name, File, Line, GetterName, SetterName, Attributes,
Type))
TempDIObjCProperty clone() const { return cloneImpl(); }
unsigned getLine() const { return Line; }
unsigned getAttributes() const { return Attributes; }
StringRef getName() const { return getStringOperand(0); }
DIFile *getFile() const { return cast_or_null<DIFile>(getRawFile()); }
StringRef getGetterName() const { return getStringOperand(2); }
StringRef getSetterName() const { return getStringOperand(3); }
DITypeRef getType() const { return DITypeRef(getRawType()); }
StringRef getFilename() const {
if (auto *F = getFile())
return F->getFilename();
return "";
}
StringRef getDirectory() const {
if (auto *F = getFile())
return F->getDirectory();
return "";
}
MDString *getRawName() const { return getOperandAs<MDString>(0); }
Metadata *getRawFile() const { return getOperand(1); }
MDString *getRawGetterName() const { return getOperandAs<MDString>(2); }
MDString *getRawSetterName() const { return getOperandAs<MDString>(3); }
Metadata *getRawType() const { return getOperand(4); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DIObjCPropertyKind;
}
};
/// \brief An imported module (C++ using directive or similar).
class DIImportedEntity : public DINode {
friend class LLVMContextImpl;
friend class MDNode;
unsigned Line;
DIImportedEntity(LLVMContext &C, StorageType Storage, unsigned Tag,
unsigned Line, ArrayRef<Metadata *> Ops)
: DINode(C, DIImportedEntityKind, Storage, Tag, Ops), Line(Line) {}
~DIImportedEntity() = default;
static DIImportedEntity *getImpl(LLVMContext &Context, unsigned Tag,
DIScope *Scope, DINodeRef Entity,
unsigned Line, StringRef Name,
StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, Tag, Scope, Entity, Line,
getCanonicalMDString(Context, Name), Storage, ShouldCreate);
}
static DIImportedEntity *getImpl(LLVMContext &Context, unsigned Tag,
Metadata *Scope, Metadata *Entity,
unsigned Line, MDString *Name,
StorageType Storage,
bool ShouldCreate = true);
TempDIImportedEntity cloneImpl() const {
return getTemporary(getContext(), getTag(), getScope(), getEntity(),
getLine(), getName());
}
public:
DEFINE_MDNODE_GET(DIImportedEntity,
(unsigned Tag, DIScope *Scope, DINodeRef Entity,
unsigned Line, StringRef Name = ""),
(Tag, Scope, Entity, Line, Name))
DEFINE_MDNODE_GET(DIImportedEntity,
(unsigned Tag, Metadata *Scope, Metadata *Entity,
unsigned Line, MDString *Name),
(Tag, Scope, Entity, Line, Name))
TempDIImportedEntity clone() const { return cloneImpl(); }
unsigned getLine() const { return Line; }
DIScope *getScope() const { return cast_or_null<DIScope>(getRawScope()); }
DINodeRef getEntity() const { return DINodeRef(getRawEntity()); }
StringRef getName() const { return getStringOperand(2); }
Metadata *getRawScope() const { return getOperand(0); }
Metadata *getRawEntity() const { return getOperand(1); }
MDString *getRawName() const { return getOperandAs<MDString>(2); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DIImportedEntityKind;
}
};
/// \brief Macro Info DWARF-like metadata node.
///
/// A metadata node with a DWARF macro info (i.e., a constant named
/// \c DW_MACINFO_*, defined in llvm/Support/Dwarf.h). Called \a DIMacroNode
/// because it's potentially used for non-DWARF output.
class DIMacroNode : public MDNode {
friend class LLVMContextImpl;
friend class MDNode;
protected:
DIMacroNode(LLVMContext &C, unsigned ID, StorageType Storage, unsigned MIType,
ArrayRef<Metadata *> Ops1, ArrayRef<Metadata *> Ops2 = None)
: MDNode(C, ID, Storage, Ops1, Ops2) {
assert(MIType < 1u << 16);
SubclassData16 = MIType;
}
~DIMacroNode() = default;
template <class Ty> Ty *getOperandAs(unsigned I) const {
return cast_or_null<Ty>(getOperand(I));
}
StringRef getStringOperand(unsigned I) const {
if (auto *S = getOperandAs<MDString>(I))
return S->getString();
return StringRef();
}
static MDString *getCanonicalMDString(LLVMContext &Context, StringRef S) {
if (S.empty())
return nullptr;
return MDString::get(Context, S);
}
public:
unsigned getMacinfoType() const { return SubclassData16; }
static bool classof(const Metadata *MD) {
switch (MD->getMetadataID()) {
default:
return false;
case DIMacroKind:
case DIMacroFileKind:
return true;
}
}
};
class DIMacro : public DIMacroNode {
friend class LLVMContextImpl;
friend class MDNode;
unsigned Line;
DIMacro(LLVMContext &C, StorageType Storage, unsigned MIType, unsigned Line,
ArrayRef<Metadata *> Ops)
: DIMacroNode(C, DIMacroKind, Storage, MIType, Ops), Line(Line) {}
~DIMacro() = default;
static DIMacro *getImpl(LLVMContext &Context, unsigned MIType, unsigned Line,
StringRef Name, StringRef Value, StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, MIType, Line, getCanonicalMDString(Context, Name),
getCanonicalMDString(Context, Value), Storage, ShouldCreate);
}
static DIMacro *getImpl(LLVMContext &Context, unsigned MIType, unsigned Line,
MDString *Name, MDString *Value, StorageType Storage,
bool ShouldCreate = true);
TempDIMacro cloneImpl() const {
return getTemporary(getContext(), getMacinfoType(), getLine(), getName(),
getValue());
}
public:
DEFINE_MDNODE_GET(DIMacro, (unsigned MIType, unsigned Line, StringRef Name,
StringRef Value = ""),
(MIType, Line, Name, Value))
DEFINE_MDNODE_GET(DIMacro, (unsigned MIType, unsigned Line, MDString *Name,
MDString *Value),
(MIType, Line, Name, Value))
TempDIMacro clone() const { return cloneImpl(); }
unsigned getLine() const { return Line; }
StringRef getName() const { return getStringOperand(0); }
StringRef getValue() const { return getStringOperand(1); }
MDString *getRawName() const { return getOperandAs<MDString>(0); }
MDString *getRawValue() const { return getOperandAs<MDString>(1); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DIMacroKind;
}
};
class DIMacroFile : public DIMacroNode {
friend class LLVMContextImpl;
friend class MDNode;
unsigned Line;
DIMacroFile(LLVMContext &C, StorageType Storage, unsigned MIType,
unsigned Line, ArrayRef<Metadata *> Ops)
: DIMacroNode(C, DIMacroFileKind, Storage, MIType, Ops), Line(Line) {}
~DIMacroFile() = default;
static DIMacroFile *getImpl(LLVMContext &Context, unsigned MIType,
unsigned Line, DIFile *File,
DIMacroNodeArray Elements, StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, MIType, Line, static_cast<Metadata *>(File),
Elements.get(), Storage, ShouldCreate);
}
static DIMacroFile *getImpl(LLVMContext &Context, unsigned MIType,
unsigned Line, Metadata *File, Metadata *Elements,
StorageType Storage, bool ShouldCreate = true);
TempDIMacroFile cloneImpl() const {
return getTemporary(getContext(), getMacinfoType(), getLine(), getFile(),
getElements());
}
public:
DEFINE_MDNODE_GET(DIMacroFile, (unsigned MIType, unsigned Line, DIFile *File,
DIMacroNodeArray Elements),
(MIType, Line, File, Elements))
DEFINE_MDNODE_GET(DIMacroFile, (unsigned MIType, unsigned Line,
Metadata *File, Metadata *Elements),
(MIType, Line, File, Elements))
TempDIMacroFile clone() const { return cloneImpl(); }
void replaceElements(DIMacroNodeArray Elements) {
#ifndef NDEBUG
for (DIMacroNode *Op : getElements())
assert(std::find(Elements->op_begin(), Elements->op_end(), Op) &&
"Lost a macro node during macro node list replacement");
#endif
replaceOperandWith(1, Elements.get());
}
unsigned getLine() const { return Line; }
DIFile *getFile() const { return cast_or_null<DIFile>(getRawFile()); }
DIMacroNodeArray getElements() const {
return cast_or_null<MDTuple>(getRawElements());
}
Metadata *getRawFile() const { return getOperand(0); }
Metadata *getRawElements() const { return getOperand(1); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DIMacroFileKind;
}
};
} // end namespace llvm
#undef DEFINE_MDNODE_GET_UNPACK_IMPL
#undef DEFINE_MDNODE_GET_UNPACK
#undef DEFINE_MDNODE_GET
#endif