//===----------------------------------------------------------------------===//
/// \class
-/// \brief A set of classes that contain the kind and (optional) value of the
-/// attribute object. There are three main categories: enum attribute entries,
-/// represented by Attribute::AttrKind; alignment attribute entries; and string
-/// attribute enties, which are for target-dependent attributes.
-class AttributeEntry {
- unsigned char KindID;
+/// \brief This class represents a single, uniqued attribute. That attribute
+/// could be a single enum, a tuple, or a string.
+class AttributeImpl : public FoldingSetNode {
+ unsigned char KindID; ///< Holds the AttrEntryKind of the attribute
+
+ // AttributesImpl is uniqued, these should not be publicly available.
+ void operator=(const AttributeImpl &) LLVM_DELETED_FUNCTION;
+ AttributeImpl(const AttributeImpl &) LLVM_DELETED_FUNCTION;
+
protected:
enum AttrEntryKind {
EnumAttrEntry,
AlignAttrEntry,
StringAttrEntry
};
-public:
- AttributeEntry(AttrEntryKind Kind)
- : KindID(Kind) {}
- virtual ~AttributeEntry() {}
-
- unsigned getKindID() const { return KindID; }
-
- static inline bool classof(const AttributeEntry *) { return true; }
-};
-
-class EnumAttributeEntry : public AttributeEntry {
- Attribute::AttrKind Kind;
-public:
- EnumAttributeEntry(Attribute::AttrKind Kind)
- : AttributeEntry(EnumAttrEntry), Kind(Kind) {}
-
- Attribute::AttrKind getEnumKind() const { return Kind; }
-
- static inline bool classof(const AttributeEntry *AE) {
- return AE->getKindID() == EnumAttrEntry;
- }
- static inline bool classof(const EnumAttributeEntry *) { return true; }
-};
-
-class AlignAttributeEntry : public AttributeEntry {
- Attribute::AttrKind Kind;
- unsigned Align;
-public:
- AlignAttributeEntry(Attribute::AttrKind Kind, unsigned Align)
- : AttributeEntry(AlignAttrEntry), Kind(Kind), Align(Align) {}
-
- Attribute::AttrKind getEnumKind() const { return Kind; }
- unsigned getAlignment() const { return Align; }
-
- static inline bool classof(const AttributeEntry *AE) {
- return AE->getKindID() == AlignAttrEntry;
- }
- static inline bool classof(const AlignAttributeEntry *) { return true; }
-};
-
-class StringAttributeEntry : public AttributeEntry {
- std::string Kind;
- std::string Val;
-public:
- StringAttributeEntry(StringRef Kind, StringRef Val = StringRef())
- : AttributeEntry(StringAttrEntry), Kind(Kind), Val(Val) {}
-
- StringRef getStringKind() const { return Kind; }
- StringRef getStringValue() const { return Val; }
-
- static inline bool classof(const AttributeEntry *AE) {
- return AE->getKindID() == StringAttrEntry;
- }
- static inline bool classof(const StringAttributeEntry *) { return true; }
-};
-
-//===----------------------------------------------------------------------===//
-/// \class
-/// \brief This class represents a single, uniqued attribute. That attribute
-/// could be a single enum, a tuple, or a string.
-class AttributeImpl : public FoldingSetNode {
- LLVMContext &Context; ///< Global context for uniquing objects
- AttributeEntry *Entry; ///< Holds the kind and value of the attribute
+ AttributeImpl(AttrEntryKind KindID) : KindID(KindID) {}
- // AttributesImpl is uniqued, these should not be publicly available.
- void operator=(const AttributeImpl &) LLVM_DELETED_FUNCTION;
- AttributeImpl(const AttributeImpl &) LLVM_DELETED_FUNCTION;
public:
- AttributeImpl(LLVMContext &C, Attribute::AttrKind Kind);
- AttributeImpl(LLVMContext &C, Attribute::AttrKind Kind, unsigned Align);
- AttributeImpl(LLVMContext &C, StringRef Kind, StringRef Val = StringRef());
- ~AttributeImpl();
-
- LLVMContext &getContext() { return Context; }
+ virtual ~AttributeImpl();
- bool isEnumAttribute() const;
- bool isAlignAttribute() const;
- bool isStringAttribute() const;
+ bool isEnumAttribute() const { return KindID == EnumAttrEntry; }
+ bool isAlignAttribute() const { return KindID == AlignAttrEntry; }
+ bool isStringAttribute() const { return KindID == StringAttrEntry; }
bool hasAttribute(Attribute::AttrKind A) const;
bool hasAttribute(StringRef Kind) const;
static uint64_t getAttrMask(Attribute::AttrKind Val);
};
+//===----------------------------------------------------------------------===//
+/// \class
+/// \brief A set of classes that contain the value of the
+/// attribute object. There are three main categories: enum attribute entries,
+/// represented by Attribute::AttrKind; alignment attribute entries; and string
+/// attribute enties, which are for target-dependent attributes.
+
+class EnumAttributeImpl : public AttributeImpl {
+ Attribute::AttrKind Kind;
+
+protected:
+ EnumAttributeImpl(AttrEntryKind ID, Attribute::AttrKind Kind)
+ : AttributeImpl(ID), Kind(Kind) {}
+
+public:
+ EnumAttributeImpl(Attribute::AttrKind Kind)
+ : AttributeImpl(EnumAttrEntry), Kind(Kind) {}
+
+ Attribute::AttrKind getEnumKind() const { return Kind; }
+};
+
+class AlignAttributeImpl : public EnumAttributeImpl {
+ unsigned Align;
+
+public:
+ AlignAttributeImpl(Attribute::AttrKind Kind, unsigned Align)
+ : EnumAttributeImpl(AlignAttrEntry, Kind), Align(Align) {
+ assert(
+ (Kind == Attribute::Alignment || Kind == Attribute::StackAlignment) &&
+ "Wrong kind for alignment attribute!");
+ }
+
+ unsigned getAlignment() const { return Align; }
+};
+
+class StringAttributeImpl : public AttributeImpl {
+ std::string Kind;
+ std::string Val;
+
+public:
+ StringAttributeImpl(StringRef Kind, StringRef Val = StringRef())
+ : AttributeImpl(StringAttrEntry), Kind(Kind), Val(Val) {}
+
+ StringRef getStringKind() const { return Kind; }
+ StringRef getStringValue() const { return Val; }
+};
+
//===----------------------------------------------------------------------===//
/// \class
/// \brief This class represents a group of attributes that apply to one
/// element: function, return type, or parameter.
class AttributeSetNode : public FoldingSetNode {
- SmallVector<Attribute, 4> AttrList;
+ unsigned NumAttrs; ///< Number of attributes in this node.
- AttributeSetNode(ArrayRef<Attribute> Attrs)
- : AttrList(Attrs.begin(), Attrs.end()) {}
+ AttributeSetNode(ArrayRef<Attribute> Attrs) : NumAttrs(Attrs.size()) {
+ // There's memory after the node where we can store the entries in.
+ std::copy(Attrs.begin(), Attrs.end(),
+ reinterpret_cast<Attribute *>(this + 1));
+ }
// AttributesSetNode is uniqued, these should not be publicly available.
void operator=(const AttributeSetNode &) LLVM_DELETED_FUNCTION;
bool hasAttribute(Attribute::AttrKind Kind) const;
bool hasAttribute(StringRef Kind) const;
- bool hasAttributes() const { return !AttrList.empty(); }
+ bool hasAttributes() const { return NumAttrs != 0; }
Attribute getAttribute(Attribute::AttrKind Kind) const;
Attribute getAttribute(StringRef Kind) const;
unsigned getStackAlignment() const;
std::string getAsString(bool InAttrGrp) const;
- typedef SmallVectorImpl<Attribute>::iterator iterator;
- typedef SmallVectorImpl<Attribute>::const_iterator const_iterator;
-
- iterator begin() { return AttrList.begin(); }
- iterator end() { return AttrList.end(); }
-
- const_iterator begin() const { return AttrList.begin(); }
- const_iterator end() const { return AttrList.end(); }
+ typedef const Attribute *iterator;
+ iterator begin() const { return reinterpret_cast<iterator>(this + 1); }
+ iterator end() const { return begin() + NumAttrs; }
void Profile(FoldingSetNodeID &ID) const {
- Profile(ID, AttrList);
+ Profile(ID, makeArrayRef(begin(), end()));
}
static void Profile(FoldingSetNodeID &ID, ArrayRef<Attribute> AttrList) {
for (unsigned I = 0, E = AttrList.size(); I != E; ++I)
LLVMContext &Context;
typedef std::pair<unsigned, AttributeSetNode*> IndexAttrPair;
- SmallVector<IndexAttrPair, 4> AttrNodes;
+ unsigned NumAttrs; ///< Number of entries in this set.
+
+ /// \brief Return a pointer to the IndexAttrPair for the specified slot.
+ const IndexAttrPair *getNode(unsigned Slot) const {
+ return reinterpret_cast<const IndexAttrPair *>(this + 1) + Slot;
+ }
// AttributesSet is uniqued, these should not be publicly available.
void operator=(const AttributeSetImpl &) LLVM_DELETED_FUNCTION;
AttributeSetImpl(const AttributeSetImpl &) LLVM_DELETED_FUNCTION;
public:
AttributeSetImpl(LLVMContext &C,
- ArrayRef<std::pair<unsigned, AttributeSetNode*> > attrs)
- : Context(C), AttrNodes(attrs.begin(), attrs.end()) {}
+ ArrayRef<std::pair<unsigned, AttributeSetNode *> > Attrs)
+ : Context(C), NumAttrs(Attrs.size()) {
+ // There's memory after the node where we can store the entries in.
+ std::copy(Attrs.begin(), Attrs.end(),
+ reinterpret_cast<IndexAttrPair *>(this + 1));
+ }
/// \brief Get the context that created this AttributeSetImpl.
LLVMContext &getContext() { return Context; }
/// \brief Return the number of attributes this AttributeSet contains.
- unsigned getNumAttributes() const { return AttrNodes.size(); }
+ unsigned getNumAttributes() const { return NumAttrs; }
/// \brief Get the index of the given "slot" in the AttrNodes list. This index
/// is the index of the return, parameter, or function object that the
/// attributes are applied to, not the index into the AttrNodes list where the
/// attributes reside.
unsigned getSlotIndex(unsigned Slot) const {
- return AttrNodes[Slot].first;
+ return getNode(Slot)->first;
}
/// \brief Retrieve the attributes for the given "slot" in the AttrNode list.
/// \p Slot is an index into the AttrNodes list, not the index of the return /
/// parameter/ function which the attributes apply to.
AttributeSet getSlotAttributes(unsigned Slot) const {
- return AttributeSet::get(Context, AttrNodes[Slot]);
+ return AttributeSet::get(Context, *getNode(Slot));
}
/// \brief Retrieve the attribute set node for the given "slot" in the
/// AttrNode list.
AttributeSetNode *getSlotNode(unsigned Slot) const {
- return AttrNodes[Slot].second;
+ return getNode(Slot)->second;
}
- typedef AttributeSetNode::iterator iterator;
- typedef AttributeSetNode::const_iterator const_iterator;
-
- iterator begin(unsigned Slot)
- { return AttrNodes[Slot].second->begin(); }
- iterator end(unsigned Slot)
- { return AttrNodes[Slot].second->end(); }
-
- const_iterator begin(unsigned Slot) const
- { return AttrNodes[Slot].second->begin(); }
- const_iterator end(unsigned Slot) const
- { return AttrNodes[Slot].second->end(); }
+ typedef AttributeSetNode::iterator iterator;
+ iterator begin(unsigned Slot) const { return getSlotNode(Slot)->begin(); }
+ iterator end(unsigned Slot) const { return getSlotNode(Slot)->end(); }
void Profile(FoldingSetNodeID &ID) const {
- Profile(ID, AttrNodes);
+ Profile(ID, makeArrayRef(getNode(0), getNumAttributes()));
}
static void Profile(FoldingSetNodeID &ID,
ArrayRef<std::pair<unsigned, AttributeSetNode*> > Nodes) {
if (!PA) {
// If we didn't find any existing attributes of the same shape then create a
// new one and insert it.
- PA = !Val ?
- new AttributeImpl(Context, Kind) :
- new AttributeImpl(Context, Kind, Val);
+ if (!Val)
+ PA = new EnumAttributeImpl(Kind);
+ else
+ PA = new AlignAttributeImpl(Kind, Val);
pImpl->AttrsSet.InsertNode(PA, InsertPoint);
}
if (!PA) {
// If we didn't find any existing attributes of the same shape then create a
// new one and insert it.
- PA = new AttributeImpl(Context, Kind, Val);
+ PA = new StringAttributeImpl(Kind, Val);
pImpl->AttrsSet.InsertNode(PA, InsertPoint);
}
// AttributeImpl Definition
//===----------------------------------------------------------------------===//
-AttributeImpl::AttributeImpl(LLVMContext &C, Attribute::AttrKind Kind)
- : Context(C), Entry(new EnumAttributeEntry(Kind)) {}
-
-AttributeImpl::AttributeImpl(LLVMContext &C, Attribute::AttrKind Kind,
- unsigned Align)
- : Context(C) {
- assert((Kind == Attribute::Alignment || Kind == Attribute::StackAlignment) &&
- "Wrong kind for alignment attribute!");
- Entry = new AlignAttributeEntry(Kind, Align);
-}
-
-AttributeImpl::AttributeImpl(LLVMContext &C, StringRef Kind, StringRef Val)
- : Context(C), Entry(new StringAttributeEntry(Kind, Val)) {}
-
-AttributeImpl::~AttributeImpl() {
- delete Entry;
-}
-
-bool AttributeImpl::isEnumAttribute() const {
- return isa<EnumAttributeEntry>(Entry);
-}
-
-bool AttributeImpl::isAlignAttribute() const {
- return isa<AlignAttributeEntry>(Entry);
-}
-
-bool AttributeImpl::isStringAttribute() const {
- return isa<StringAttributeEntry>(Entry);
-}
+AttributeImpl::~AttributeImpl() {}
bool AttributeImpl::hasAttribute(Attribute::AttrKind A) const {
if (isStringAttribute()) return false;
}
Attribute::AttrKind AttributeImpl::getKindAsEnum() const {
- if (EnumAttributeEntry *E = dyn_cast<EnumAttributeEntry>(Entry))
- return E->getEnumKind();
- return cast<AlignAttributeEntry>(Entry)->getEnumKind();
+ assert(isEnumAttribute() || isAlignAttribute());
+ return static_cast<const EnumAttributeImpl *>(this)->getEnumKind();
}
uint64_t AttributeImpl::getValueAsInt() const {
- return cast<AlignAttributeEntry>(Entry)->getAlignment();
+ assert(isAlignAttribute());
+ return static_cast<const AlignAttributeImpl *>(this)->getAlignment();
}
StringRef AttributeImpl::getKindAsString() const {
- return cast<StringAttributeEntry>(Entry)->getStringKind();
+ assert(isStringAttribute());
+ return static_cast<const StringAttributeImpl *>(this)->getStringKind();
}
StringRef AttributeImpl::getValueAsString() const {
- return cast<StringAttributeEntry>(Entry)->getStringValue();
+ assert(isStringAttribute());
+ return static_cast<const StringAttributeImpl *>(this)->getStringValue();
}
bool AttributeImpl::operator<(const AttributeImpl &AI) const {
// If we didn't find any existing attributes of the same shape then create a
// new one and insert it.
if (!PA) {
- PA = new AttributeSetNode(SortedAttrs);
+ // Coallocate entries after the AttributeSetNode itself.
+ void *Mem = ::operator new(sizeof(AttributeSetNode) +
+ sizeof(Attribute) * SortedAttrs.size());
+ PA = new (Mem) AttributeSetNode(SortedAttrs);
pImpl->AttrsSetNodes.InsertNode(PA, InsertPoint);
}
}
bool AttributeSetNode::hasAttribute(Attribute::AttrKind Kind) const {
- for (SmallVectorImpl<Attribute>::const_iterator I = AttrList.begin(),
- E = AttrList.end(); I != E; ++I)
+ for (iterator I = begin(), E = end(); I != E; ++I)
if (I->hasAttribute(Kind))
return true;
return false;
}
bool AttributeSetNode::hasAttribute(StringRef Kind) const {
- for (SmallVectorImpl<Attribute>::const_iterator I = AttrList.begin(),
- E = AttrList.end(); I != E; ++I)
+ for (iterator I = begin(), E = end(); I != E; ++I)
if (I->hasAttribute(Kind))
return true;
return false;
}
Attribute AttributeSetNode::getAttribute(Attribute::AttrKind Kind) const {
- for (SmallVectorImpl<Attribute>::const_iterator I = AttrList.begin(),
- E = AttrList.end(); I != E; ++I)
+ for (iterator I = begin(), E = end(); I != E; ++I)
if (I->hasAttribute(Kind))
return *I;
return Attribute();
}
Attribute AttributeSetNode::getAttribute(StringRef Kind) const {
- for (SmallVectorImpl<Attribute>::const_iterator I = AttrList.begin(),
- E = AttrList.end(); I != E; ++I)
+ for (iterator I = begin(), E = end(); I != E; ++I)
if (I->hasAttribute(Kind))
return *I;
return Attribute();
}
unsigned AttributeSetNode::getAlignment() const {
- for (SmallVectorImpl<Attribute>::const_iterator I = AttrList.begin(),
- E = AttrList.end(); I != E; ++I)
+ for (iterator I = begin(), E = end(); I != E; ++I)
if (I->hasAttribute(Attribute::Alignment))
return I->getAlignment();
return 0;
}
unsigned AttributeSetNode::getStackAlignment() const {
- for (SmallVectorImpl<Attribute>::const_iterator I = AttrList.begin(),
- E = AttrList.end(); I != E; ++I)
+ for (iterator I = begin(), E = end(); I != E; ++I)
if (I->hasAttribute(Attribute::StackAlignment))
return I->getStackAlignment();
return 0;
std::string AttributeSetNode::getAsString(bool InAttrGrp) const {
std::string Str;
- for (SmallVectorImpl<Attribute>::const_iterator I = AttrList.begin(),
- E = AttrList.end(); I != E; ++I) {
- if (I != AttrList.begin())
+ for (iterator I = begin(), E = end(); I != E; ++I) {
+ if (I != begin())
Str += ' ';
Str += I->getAsString(InAttrGrp);
}
uint64_t AttributeSetImpl::Raw(unsigned Index) const {
for (unsigned I = 0, E = getNumAttributes(); I != E; ++I) {
if (getSlotIndex(I) != Index) continue;
- const AttributeSetNode *ASN = AttrNodes[I].second;
+ const AttributeSetNode *ASN = getSlotNode(I);
uint64_t Mask = 0;
- for (AttributeSetNode::const_iterator II = ASN->begin(),
+ for (AttributeSetNode::iterator II = ASN->begin(),
IE = ASN->end(); II != IE; ++II) {
Attribute Attr = *II;
// If we didn't find any existing attributes of the same shape then
// create a new one and insert it.
if (!PA) {
- PA = new AttributeSetImpl(C, Attrs);
+ // Coallocate entries after the AttributeSetImpl itself.
+ void *Mem = ::operator new(sizeof(AttributeSetImpl) +
+ sizeof(std::pair<unsigned, AttributeSetNode *>) *
+ Attrs.size());
+ PA = new (Mem) AttributeSetImpl(C, Attrs);
pImpl->AttrsLists.InsertNode(PA, InsertPoint);
}
SmallVector<std::pair<unsigned, AttributeSetNode*>, 8> AttrNodeVec;
for (unsigned I = 0, E = Attrs.size(); I != E; ++I) {
- AttributeSet AS = Attrs[I];
- if (!AS.pImpl) continue;
- AttrNodeVec.append(AS.pImpl->AttrNodes.begin(), AS.pImpl->AttrNodes.end());
+ AttributeSetImpl *AS = Attrs[I].pImpl;
+ if (!AS) continue;
+ AttrNodeVec.append(AS->getNode(0), AS->getNode(AS->getNumAttributes()));
}
return getImpl(C, AttrNodeVec);
for (unsigned I = 0, E = Attrs.pImpl->getNumAttributes(); I != E; ++I)
if (Attrs.getSlotIndex(I) == Index) {
- for (AttributeSetImpl::const_iterator II = Attrs.pImpl->begin(I),
+ for (AttributeSetImpl::iterator II = Attrs.pImpl->begin(I),
IE = Attrs.pImpl->end(I); II != IE; ++II)
B.addAttribute(*II);
break;
if (pImpl == 0) return false;
for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I)
- for (AttributeSetImpl::const_iterator II = pImpl->begin(I),
+ for (AttributeSetImpl::iterator II = pImpl->begin(I),
IE = pImpl->end(I); II != IE; ++II)
if (II->hasAttribute(Attr))
return true;
for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I) {
if (pImpl->getSlotIndex(I) != Index) continue;
- for (AttributeSetImpl::const_iterator II = pImpl->begin(I),
+ for (AttributeSetImpl::iterator II = pImpl->begin(I),
IE = pImpl->end(I); II != IE; ++II)
addAttribute(*II);
projects / oota-llvm.git / commitdiff