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DI: Remove unnecessary DICompositeTypeBase

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Remove unnecessary and confusing common base class for `DICompositeType`
and `DISubroutineType`.

While at a high-level `DISubroutineType` is a sort of composite of other
types, it has no shared code paths, and its fields are completely
disjoint.  This relationship was left over from the old debug info
hierarchy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243160 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2015-07-24 20:56:36 +00:00
parent 24b6acf971
commit e5f2fce18a
3 changed files with 51 additions and 85 deletions
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132
include/llvm/IR/DebugInfoMetadata.h
View File

@ -745,92 +745,23 @@ public:
}
};
/// \brief Base class for DICompositeType and DISubroutineType.
///
/// TODO: Delete; they're not really related.
class DICompositeTypeBase : public DIType {
unsigned RuntimeLang;
protected:
DICompositeTypeBase(LLVMContext &C, unsigned ID, StorageType Storage,
unsigned Tag, unsigned Line, unsigned RuntimeLang,
uint64_t SizeInBits, uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags,
ArrayRef<Metadata *> Ops)
: DIType(C, ID, Storage, Tag, Line, SizeInBits, AlignInBits, OffsetInBits,
Flags, Ops),
RuntimeLang(RuntimeLang) {}
~DICompositeTypeBase() = default;
public:
//// Get the base type this is derived from, if any.
DITypeRef getBaseType() const { return DITypeRef(getRawBaseType()); }
/// \brief Get the elements of the composite type.
///
/// \note Calling this is only valid for \a DICompositeType. This assertion
/// can be removed once \a DISubroutineType has been separated from
/// "composite types".
DINodeArray getElements() const {
assert(!isa<DISubroutineType>(this) && "no elements for DISubroutineType");
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 ||
MD->getMetadataID() == DISubroutineTypeKind;
}
};
/// \brief Composite types.
///
/// TODO: Detach from DerivedTypeBase (split out MDEnumType?).
/// TODO: Create a custom, unrelated node for DW_TAG_array_type.
class DICompositeType : public DICompositeTypeBase {
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)
: DICompositeTypeBase(C, DICompositeTypeKind, Storage, Tag, Line,
RuntimeLang, SizeInBits, AlignInBits, OffsetInBits,
Flags, Ops) {}
: DIType(C, DICompositeTypeKind, Storage, Tag, Line, SizeInBits,
AlignInBits, OffsetInBits, Flags, Ops),
RuntimeLang(RuntimeLang) {}
~DICompositeType() = default;
static DICompositeType *
@ -888,6 +819,45 @@ public:
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;
}
@ -903,17 +873,15 @@ template <class T> TypedDINodeRef<T> TypedDINodeRef<T>::get(const T *N) {
/// \brief Type array for a subprogram.
///
/// TODO: Detach from CompositeType, and fold the array of types in directly
/// as operands.
class DISubroutineType : public DICompositeTypeBase {
/// 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)
: DICompositeTypeBase(C, DISubroutineTypeKind, Storage,
dwarf::DW_TAG_subroutine_type, 0, 0, 0, 0, 0, Flags,
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,
@ -942,7 +910,7 @@ public:
DITypeRefArray getTypeArray() const {
return cast_or_null<MDTuple>(getRawTypeArray());
}
Metadata *getRawTypeArray() const { return getRawElements(); }
Metadata *getRawTypeArray() const { return getOperand(3); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == DISubroutineTypeKind;

1
include/llvm/IR/Metadata.def
View File

@ -70,7 +70,6 @@ HANDLE_SPECIALIZED_MDNODE_BRANCH(DIScope)
HANDLE_SPECIALIZED_MDNODE_BRANCH(DIType)
HANDLE_SPECIALIZED_MDNODE_LEAF(DIBasicType)
HANDLE_SPECIALIZED_MDNODE_LEAF(DIDerivedType)
HANDLE_SPECIALIZED_MDNODE_BRANCH(DICompositeTypeBase)
HANDLE_SPECIALIZED_MDNODE_LEAF(DICompositeType)
HANDLE_SPECIALIZED_MDNODE_LEAF(DISubroutineType)
HANDLE_SPECIALIZED_MDNODE_LEAF(DIFile)

3
lib/IR/DebugInfoMetadata.cpp
View File

@ -295,8 +295,7 @@ DISubroutineType *DISubroutineType::getImpl(LLVMContext &Context,
StorageType Storage,
bool ShouldCreate) {
DEFINE_GETIMPL_LOOKUP(DISubroutineType, (Flags, TypeArray));
Metadata *Ops[] = {nullptr, nullptr, nullptr, nullptr,
TypeArray, nullptr, nullptr, nullptr};
Metadata *Ops[] = {nullptr, nullptr, nullptr, TypeArray};
DEFINE_GETIMPL_STORE(DISubroutineType, (Flags), Ops);
}