/// These are used to efficiently contain a byte sequence for metadata.
/// MDString is always unnamed.
class MDString : public Value {
- MDString(const MDString &); // DO NOT IMPLEMENT
-
- StringRef Str;
- explicit MDString(LLVMContext &C, StringRef S);
+ virtual void anchor();
+ MDString(const MDString &) LLVM_DELETED_FUNCTION;
+ explicit MDString(LLVMContext &C);
public:
static MDString *get(LLVMContext &Context, StringRef Str);
static MDString *get(LLVMContext &Context, const char *Str) {
return get(Context, Str ? StringRef(Str) : StringRef());
}
- StringRef getString() const { return Str; }
+ StringRef getString() const { return getName(); }
- unsigned getLength() const { return (unsigned)Str.size(); }
+ unsigned getLength() const { return (unsigned)getName().size(); }
typedef StringRef::iterator iterator;
/// begin() - Pointer to the first byte of the string.
- ///
- iterator begin() const { return Str.begin(); }
+ iterator begin() const { return getName().begin(); }
/// end() - Pointer to one byte past the end of the string.
- ///
- iterator end() const { return Str.end(); }
+ iterator end() const { return getName().end(); }
/// Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const MDString *) { return true; }
static bool classof(const Value *V) {
return V->getValueID() == MDStringVal;
}
//===----------------------------------------------------------------------===//
/// MDNode - a tuple of other values.
class MDNode : public Value, public FoldingSetNode {
- MDNode(const MDNode &); // DO NOT IMPLEMENT
- void operator=(const MDNode &); // DO NOT IMPLEMENT
+ MDNode(const MDNode &) LLVM_DELETED_FUNCTION;
+ void operator=(const MDNode &) LLVM_DELETED_FUNCTION;
friend class MDNodeOperand;
friend class LLVMContextImpl;
+ friend struct FoldingSetTrait<MDNode>;
+
+ /// Hash - If the MDNode is uniqued cache the hash to speed up lookup.
+ unsigned Hash;
/// NumOperands - This many 'MDNodeOperand' items are co-allocated onto the
/// end of this MDNode.
/// deleteTemporary - Deallocate a node created by getTemporary. The
/// node must not have any users.
static void deleteTemporary(MDNode *N);
+
+ /// replaceOperandWith - Replace a specific operand.
+ void replaceOperandWith(unsigned i, Value *NewVal);
/// getOperand - Return specified operand.
Value *getOperand(unsigned i) const;
void Profile(FoldingSetNodeID &ID) const;
/// Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const MDNode *) { return true; }
static bool classof(const Value *V) {
return V->getValueID() == MDNodeVal;
}
+
+ /// Methods for metadata merging.
+ static MDNode *getMostGenericTBAA(MDNode *A, MDNode *B);
+ static MDNode *getMostGenericFPMath(MDNode *A, MDNode *B);
+ static MDNode *getMostGenericRange(MDNode *A, MDNode *B);
private:
// destroy - Delete this node. Only when there are no uses.
void destroy();
friend struct ilist_traits<NamedMDNode>;
friend class LLVMContextImpl;
friend class Module;
- NamedMDNode(const NamedMDNode &); // DO NOT IMPLEMENT
+ NamedMDNode(const NamedMDNode &) LLVM_DELETED_FUNCTION;
std::string Name;
Module *Parent;