#include "llvm/ADT/FoldingSet.h"
#include "llvm/IR/Attributes.h"
+#include <string>
namespace llvm {
class Constant;
class LLVMContext;
+//===----------------------------------------------------------------------===//
+/// \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;
+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;
- Constant *Data;
- SmallVector<Constant*, 0> Vals;
+ LLVMContext &Context; ///< Global context for uniquing objects
+
+ AttributeEntry *Entry; ///< Holds the kind and value 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;
public:
- explicit AttributeImpl(LLVMContext &C, uint64_t data);
- explicit AttributeImpl(LLVMContext &C, Attribute::AttrKind data);
- AttributeImpl(LLVMContext &C, Attribute::AttrKind data,
- ArrayRef<Constant*> values);
- AttributeImpl(LLVMContext &C, StringRef data);
+ AttributeImpl(LLVMContext &C, Attribute::AttrKind Kind);
+ AttributeImpl(LLVMContext &C, Attribute::AttrKind Kind, unsigned Align);
+ AttributeImpl(LLVMContext &C, StringRef Kind, StringRef Val = StringRef());
+ ~AttributeImpl();
- ArrayRef<Constant*> getValues() const { return Vals; }
+ LLVMContext &getContext() { return Context; }
+
+ bool isEnumAttribute() const;
+ bool isAlignAttribute() const;
+ bool isStringAttribute() const;
bool hasAttribute(Attribute::AttrKind A) const;
+ bool hasAttribute(StringRef Kind) const;
- bool hasAttributes() const;
+ Attribute::AttrKind getKindAsEnum() const;
+ uint64_t getValueAsInt() const;
- uint64_t getAlignment() const;
- void setAlignment(unsigned Align);
+ StringRef getKindAsString() const;
+ StringRef getValueAsString() const;
- uint64_t getStackAlignment() const;
- void setStackAlignment(unsigned Align);
+ /// \brief Used when sorting the attributes.
+ bool operator<(const AttributeImpl &AI) const;
- bool operator==(Attribute::AttrKind Kind) const;
- bool operator!=(Attribute::AttrKind Kind) const;
+ void Profile(FoldingSetNodeID &ID) const {
+ if (isEnumAttribute())
+ Profile(ID, getKindAsEnum(), 0);
+ else if (isAlignAttribute())
+ Profile(ID, getKindAsEnum(), getValueAsInt());
+ else
+ Profile(ID, getKindAsString(), getValueAsString());
+ }
+ static void Profile(FoldingSetNodeID &ID, Attribute::AttrKind Kind,
+ uint64_t Val) {
+ ID.AddInteger(Kind);
+ if (Val) ID.AddInteger(Val);
+ }
+ static void Profile(FoldingSetNodeID &ID, StringRef Kind, StringRef Values) {
+ ID.AddString(Kind);
+ if (!Values.empty()) ID.AddString(Values);
+ }
+
+ // FIXME: Remove this!
+ static uint64_t getAttrMask(Attribute::AttrKind Val);
+};
- bool operator==(StringRef Kind) const;
- bool operator!=(StringRef Kind) const;
+//===----------------------------------------------------------------------===//
+/// \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;
- uint64_t Raw() const; // FIXME: Remove.
+ AttributeSetNode(ArrayRef<Attribute> Attrs)
+ : AttrList(Attrs.begin(), Attrs.end()) {}
- static uint64_t getAttrMask(Attribute::AttrKind Val);
+ // AttributesSetNode is uniqued, these should not be publicly available.
+ void operator=(const AttributeSetNode &) LLVM_DELETED_FUNCTION;
+ AttributeSetNode(const AttributeSetNode &) LLVM_DELETED_FUNCTION;
+public:
+ static AttributeSetNode *get(LLVMContext &C, ArrayRef<Attribute> Attrs);
+
+ bool hasAttribute(Attribute::AttrKind Kind) const;
+ bool hasAttribute(StringRef Kind) const;
+ bool hasAttributes() const { return !AttrList.empty(); }
+
+ Attribute getAttribute(Attribute::AttrKind Kind) const;
+ Attribute getAttribute(StringRef Kind) const;
+
+ unsigned getAlignment() 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(); }
void Profile(FoldingSetNodeID &ID) const {
- Profile(ID, Data, Vals);
+ Profile(ID, AttrList);
+ }
+ static void Profile(FoldingSetNodeID &ID, ArrayRef<Attribute> AttrList) {
+ for (unsigned I = 0, E = AttrList.size(); I != E; ++I)
+ AttrList[I].Profile(ID);
}
- static void Profile(FoldingSetNodeID &ID, Constant *Data,
- ArrayRef<Constant*> Vals);
};
//===----------------------------------------------------------------------===//
/// \class
-/// \brief This class represents a set of attributes.
+/// \brief This class represents a set of attributes that apply to the function,
+/// return type, and parameters.
class AttributeSetImpl : public FoldingSetNode {
+ friend class AttributeSet;
+
LLVMContext &Context;
- SmallVector<AttributeWithIndex, 4> AttrList;
+
+ typedef std::pair<unsigned, AttributeSetNode*> IndexAttrPair;
+ SmallVector<IndexAttrPair, 4> AttrNodes;
// 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<AttributeWithIndex> attrs)
- : Context(C), AttrList(attrs.begin(), attrs.end()) {}
+ AttributeSetImpl(LLVMContext &C,
+ ArrayRef<std::pair<unsigned, AttributeSetNode*> > attrs)
+ : Context(C), AttrNodes(attrs.begin(), attrs.end()) {}
+ /// \brief Get the context that created this AttributeSetImpl.
LLVMContext &getContext() { return Context; }
- ArrayRef<AttributeWithIndex> getAttributes() const { return AttrList; }
- unsigned getNumAttributes() const { return AttrList.size(); }
+
+ /// \brief Return the number of attributes this AttributeSet contains.
+ unsigned getNumAttributes() const { return AttrNodes.size(); }
+
+ /// \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.
+ uint64_t getSlotIndex(unsigned Slot) const {
+ return AttrNodes[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]);
+ }
+
+ /// \brief Retrieve the attribute set node for the given "slot" in the
+ /// AttrNode list.
+ AttributeSetNode *getSlotNode(unsigned Slot) const {
+ return AttrNodes[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(); }
void Profile(FoldingSetNodeID &ID) const {
- Profile(ID, AttrList);
+ Profile(ID, AttrNodes);
}
static void Profile(FoldingSetNodeID &ID,
- ArrayRef<AttributeWithIndex> AttrList){
- for (unsigned i = 0, e = AttrList.size(); i != e; ++i) {
- ID.AddInteger(AttrList[i].Index);
- ID.AddInteger(AttrList[i].Attrs.Raw());
+ ArrayRef<std::pair<unsigned, AttributeSetNode*> > Nodes) {
+ for (unsigned i = 0, e = Nodes.size(); i != e; ++i) {
+ ID.AddInteger(Nodes[i].first);
+ ID.AddPointer(Nodes[i].second);
}
}
+
+ // FIXME: This atrocity is temporary.
+ uint64_t Raw(uint64_t Index) const;
};
} // end llvm namespace
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