template<class ConstantClass, class TypeClass, class ValType>
struct ConstantCreator;
template<class ConstantClass, class TypeClass>
+struct ConstantArrayCreator;
+template<class ConstantClass, class TypeClass>
struct ConvertConstantType;
//===----------------------------------------------------------------------===//
/// @brief Class for constant integers.
class ConstantInt : public Constant {
virtual void anchor();
- void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
- ConstantInt(const ConstantInt &); // DO NOT IMPLEMENT
+ void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+ ConstantInt(const ConstantInt &) LLVM_DELETED_FUNCTION;
ConstantInt(IntegerType *Ty, const APInt& V);
APInt Val;
protected:
}
/// @brief Methods to support type inquiry through isa, cast, and dyn_cast.
- static inline bool classof(const ConstantInt *) { return true; }
static bool classof(const Value *V) {
return V->getValueID() == ConstantIntVal;
}
class ConstantFP : public Constant {
APFloat Val;
virtual void anchor();
- void *operator new(size_t, unsigned);// DO NOT IMPLEMENT
- ConstantFP(const ConstantFP &); // DO NOT IMPLEMENT
+ void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+ ConstantFP(const ConstantFP &) LLVM_DELETED_FUNCTION;
friend class LLVMContextImpl;
protected:
ConstantFP(Type *Ty, const APFloat& V);
return isExactlyValue(FV);
}
/// Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const ConstantFP *) { return true; }
static bool classof(const Value *V) {
return V->getValueID() == ConstantFPVal;
}
/// ConstantAggregateZero - All zero aggregate value
///
class ConstantAggregateZero : public Constant {
- void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
- ConstantAggregateZero(const ConstantAggregateZero &); // DO NOT IMPLEMENT
+ void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+ ConstantAggregateZero(const ConstantAggregateZero &) LLVM_DELETED_FUNCTION;
protected:
explicit ConstantAggregateZero(Type *ty)
: Constant(ty, ConstantAggregateZeroVal, 0, 0) {}
/// getSequentialElement - If this CAZ has array or vector type, return a zero
/// with the right element type.
- Constant *getSequentialElement();
+ Constant *getSequentialElement() const;
/// getStructElement - If this CAZ has struct type, return a zero with the
/// right element type for the specified element.
- Constant *getStructElement(unsigned Elt);
+ Constant *getStructElement(unsigned Elt) const;
/// getElementValue - Return a zero of the right value for the specified GEP
/// index.
- Constant *getElementValue(Constant *C);
-
+ Constant *getElementValue(Constant *C) const;
+
+ /// getElementValue - Return a zero of the right value for the specified GEP
+ /// index.
+ Constant *getElementValue(unsigned Idx) const;
+
/// Methods for support type inquiry through isa, cast, and dyn_cast:
///
- static bool classof(const ConstantAggregateZero *) { return true; }
static bool classof(const Value *V) {
return V->getValueID() == ConstantAggregateZeroVal;
}
/// ConstantArray - Constant Array Declarations
///
class ConstantArray : public Constant {
- friend struct ConstantCreator<ConstantArray, ArrayType,
- std::vector<Constant*> >;
- ConstantArray(const ConstantArray &); // DO NOT IMPLEMENT
+ friend struct ConstantArrayCreator<ConstantArray, ArrayType>;
+ ConstantArray(const ConstantArray &) LLVM_DELETED_FUNCTION;
protected:
ConstantArray(ArrayType *T, ArrayRef<Constant *> Val);
public:
// ConstantArray accessors
static Constant *get(ArrayType *T, ArrayRef<Constant*> V);
- /// This method constructs a ConstantArray and initializes it with a text
- /// string. The default behavior (AddNull==true) causes a null terminator to
- /// be placed at the end of the array. This effectively increases the length
- /// of the array by one (you've been warned). However, in some situations
- /// this is not desired so if AddNull==false then the string is copied without
- /// null termination.
- static Constant *get(LLVMContext &Context, StringRef Initializer,
- bool AddNull = true);
-
/// Transparently provide more efficient getOperand methods.
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
return reinterpret_cast<ArrayType*>(Value::getType());
}
- /// isString - This method returns true if the array is an array of i8 and
- /// the elements of the array are all ConstantInt's.
- bool isString() const;
-
- /// isCString - This method returns true if the array is a string (see
- /// @verbatim
- /// isString) and it ends in a null byte \0 and does not contains any other
- /// @endverbatim
- /// null bytes except its terminator.
- bool isCString() const;
-
- /// getAsString - If this array is isString(), then this method converts the
- /// array to an std::string and returns it. Otherwise, it asserts out.
- ///
- std::string getAsString() const;
-
- /// getAsCString - If this array is isCString(), then this method converts the
- /// array (without the trailing null byte) to an std::string and returns it.
- /// Otherwise, it asserts out.
- ///
- std::string getAsCString() const;
-
virtual void destroyConstant();
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
/// Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const ConstantArray *) { return true; }
static bool classof(const Value *V) {
return V->getValueID() == ConstantArrayVal;
}
// ConstantStruct - Constant Struct Declarations
//
class ConstantStruct : public Constant {
- friend struct ConstantCreator<ConstantStruct, StructType,
- std::vector<Constant*> >;
- ConstantStruct(const ConstantStruct &); // DO NOT IMPLEMENT
+ friend struct ConstantArrayCreator<ConstantStruct, StructType>;
+ ConstantStruct(const ConstantStruct &) LLVM_DELETED_FUNCTION;
protected:
ConstantStruct(StructType *T, ArrayRef<Constant *> Val);
public:
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
/// Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const ConstantStruct *) { return true; }
static bool classof(const Value *V) {
return V->getValueID() == ConstantStructVal;
}
/// ConstantVector - Constant Vector Declarations
///
class ConstantVector : public Constant {
- friend struct ConstantCreator<ConstantVector, VectorType,
- std::vector<Constant*> >;
- ConstantVector(const ConstantVector &); // DO NOT IMPLEMENT
+ friend struct ConstantArrayCreator<ConstantVector, VectorType>;
+ ConstantVector(const ConstantVector &) LLVM_DELETED_FUNCTION;
protected:
ConstantVector(VectorType *T, ArrayRef<Constant *> Val);
public:
// ConstantVector accessors
static Constant *get(ArrayRef<Constant*> V);
+ /// getSplat - Return a ConstantVector with the specified constant in each
+ /// element.
+ static Constant *getSplat(unsigned NumElts, Constant *Elt);
+
/// Transparently provide more efficient getOperand methods.
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
/// Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const ConstantVector *) { return true; }
static bool classof(const Value *V) {
return V->getValueID() == ConstantVectorVal;
}
/// ConstantPointerNull - a constant pointer value that points to null
///
class ConstantPointerNull : public Constant {
- void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
- ConstantPointerNull(const ConstantPointerNull &); // DO NOT IMPLEMENT
+ void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+ ConstantPointerNull(const ConstantPointerNull &) LLVM_DELETED_FUNCTION;
protected:
explicit ConstantPointerNull(PointerType *T)
: Constant(reinterpret_cast<Type*>(T),
}
/// Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const ConstantPointerNull *) { return true; }
static bool classof(const Value *V) {
return V->getValueID() == ConstantPointerNullVal;
}
};
//===----------------------------------------------------------------------===//
-/// ConstantDataSequential - A vector or array of data that contains no
-/// relocations, and whose element type is a simple 1/2/4/8-byte integer or
-/// float/double. This is the common base class of ConstantDataArray and
-/// ConstantDataVector.
+/// ConstantDataSequential - A vector or array constant whose element type is a
+/// simple 1/2/4/8-byte integer or float/double, and whose elements are just
+/// simple data values (i.e. ConstantInt/ConstantFP). This Constant node has no
+/// operands because it stores all of the elements of the constant as densely
+/// packed data, instead of as Value*'s.
+///
+/// This is the common base class of ConstantDataArray and ConstantDataVector.
///
class ConstantDataSequential : public Constant {
friend class LLVMContextImpl;
/// element array of i8, or a 1-element array of i32. They'll both end up in
/// the same StringMap bucket, linked up.
ConstantDataSequential *Next;
- void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
- ConstantDataSequential(const ConstantDataSequential &); // DO NOT IMPLEMENT
+ void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+ ConstantDataSequential(const ConstantDataSequential &) LLVM_DELETED_FUNCTION;
protected:
explicit ConstantDataSequential(Type *ty, ValueTy VT, const char *Data)
- : Constant(ty, VT, 0, 0), DataElements(Data) {}
+ : Constant(ty, VT, 0, 0), DataElements(Data), Next(0) {}
~ConstantDataSequential() { delete Next; }
static Constant *getImpl(StringRef Bytes, Type *Ty);
float getElementAsFloat(unsigned i) const;
/// getElementAsDouble - If this is an sequential container of doubles, return
- /// the specified element as a float.
+ /// the specified element as a double.
double getElementAsDouble(unsigned i) const;
/// getElementAsConstant - Return a Constant for a specified index's element.
/// getElementType - Return the element type of the array/vector.
Type *getElementType() const;
+
+ /// getNumElements - Return the number of elements in the array or vector.
+ unsigned getNumElements() const;
/// getElementByteSize - Return the size (in bytes) of each element in the
/// array/vector. The size of the elements is known to be a multiple of one
/// byte.
uint64_t getElementByteSize() const;
+
+ /// isString - This method returns true if this is an array of i8.
+ bool isString() const;
+
+ /// isCString - This method returns true if the array "isString", ends with a
+ /// nul byte, and does not contains any other nul bytes.
+ bool isCString() const;
+
+ /// getAsString - If this array is isString(), then this method returns the
+ /// array as a StringRef. Otherwise, it asserts out.
+ ///
+ StringRef getAsString() const {
+ assert(isString() && "Not a string");
+ return getRawDataValues();
+ }
+
+ /// getAsCString - If this array is isCString(), then this method returns the
+ /// array (without the trailing null byte) as a StringRef. Otherwise, it
+ /// asserts out.
+ ///
+ StringRef getAsCString() const {
+ assert(isCString() && "Isn't a C string");
+ StringRef Str = getAsString();
+ return Str.substr(0, Str.size()-1);
+ }
+
+ /// getRawDataValues - Return the raw, underlying, bytes of this data. Note
+ /// that this is an extremely tricky thing to work with, as it exposes the
+ /// host endianness of the data elements.
+ StringRef getRawDataValues() const;
+
virtual void destroyConstant();
/// Methods for support type inquiry through isa, cast, and dyn_cast:
///
- static bool classof(const ConstantDataSequential *) { return true; }
static bool classof(const Value *V) {
return V->getValueID() == ConstantDataArrayVal ||
V->getValueID() == ConstantDataVectorVal;
};
//===----------------------------------------------------------------------===//
-/// ConstantDataArray - An array of data that contains no relocations, and whose
-/// element type is a simple 1/2/4/8-byte integer or float/double.
-///
+/// ConstantDataArray - An array constant whose element type is a simple
+/// 1/2/4/8-byte integer or float/double, and whose elements are just simple
+/// data values (i.e. ConstantInt/ConstantFP). This Constant node has no
+/// operands because it stores all of the elements of the constant as densely
+/// packed data, instead of as Value*'s.
class ConstantDataArray : public ConstantDataSequential {
- void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
- ConstantDataArray(const ConstantDataArray &); // DO NOT IMPLEMENT
+ void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+ ConstantDataArray(const ConstantDataArray &) LLVM_DELETED_FUNCTION;
virtual void anchor();
friend class ConstantDataSequential;
explicit ConstantDataArray(Type *ty, const char *Data)
/// get() constructors - Return a constant with array type with an element
/// count and element type matching the ArrayRef passed in. Note that this
/// can return a ConstantAggregateZero object.
- static Constant *get(ArrayRef<uint8_t> Elts, LLVMContext &Context);
- static Constant *get(ArrayRef<uint16_t> Elts, LLVMContext &Context);
- static Constant *get(ArrayRef<uint32_t> Elts, LLVMContext &Context);
- static Constant *get(ArrayRef<uint64_t> Elts, LLVMContext &Context);
- static Constant *get(ArrayRef<float> Elts, LLVMContext &Context);
- static Constant *get(ArrayRef<double> Elts, LLVMContext &Context);
+ static Constant *get(LLVMContext &Context, ArrayRef<uint8_t> Elts);
+ static Constant *get(LLVMContext &Context, ArrayRef<uint16_t> Elts);
+ static Constant *get(LLVMContext &Context, ArrayRef<uint32_t> Elts);
+ static Constant *get(LLVMContext &Context, ArrayRef<uint64_t> Elts);
+ static Constant *get(LLVMContext &Context, ArrayRef<float> Elts);
+ static Constant *get(LLVMContext &Context, ArrayRef<double> Elts);
+ /// getString - This method constructs a CDS and initializes it with a text
+ /// string. The default behavior (AddNull==true) causes a null terminator to
+ /// be placed at the end of the array (increasing the length of the string by
+ /// one more than the StringRef would normally indicate. Pass AddNull=false
+ /// to disable this behavior.
+ static Constant *getString(LLVMContext &Context, StringRef Initializer,
+ bool AddNull = true);
+
/// getType - Specialize the getType() method to always return an ArrayType,
/// which reduces the amount of casting needed in parts of the compiler.
///
/// Methods for support type inquiry through isa, cast, and dyn_cast:
///
- static bool classof(const ConstantDataArray *) { return true; }
static bool classof(const Value *V) {
return V->getValueID() == ConstantDataArrayVal;
}
};
//===----------------------------------------------------------------------===//
-/// ConstantDataVector - A vector of data that contains no relocations, and
-/// whose element type is a simple 1/2/4/8-byte integer or float/double.
-///
+/// ConstantDataVector - A vector constant whose element type is a simple
+/// 1/2/4/8-byte integer or float/double, and whose elements are just simple
+/// data values (i.e. ConstantInt/ConstantFP). This Constant node has no
+/// operands because it stores all of the elements of the constant as densely
+/// packed data, instead of as Value*'s.
class ConstantDataVector : public ConstantDataSequential {
- void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
- ConstantDataVector(const ConstantDataVector &); // DO NOT IMPLEMENT
+ void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+ ConstantDataVector(const ConstantDataVector &) LLVM_DELETED_FUNCTION;
virtual void anchor();
friend class ConstantDataSequential;
explicit ConstantDataVector(Type *ty, const char *Data)
/// get() constructors - Return a constant with vector type with an element
/// count and element type matching the ArrayRef passed in. Note that this
/// can return a ConstantAggregateZero object.
- static Constant *get(ArrayRef<uint8_t> Elts, LLVMContext &Context);
- static Constant *get(ArrayRef<uint16_t> Elts, LLVMContext &Context);
- static Constant *get(ArrayRef<uint32_t> Elts, LLVMContext &Context);
- static Constant *get(ArrayRef<uint64_t> Elts, LLVMContext &Context);
- static Constant *get(ArrayRef<float> Elts, LLVMContext &Context);
- static Constant *get(ArrayRef<double> Elts, LLVMContext &Context);
+ static Constant *get(LLVMContext &Context, ArrayRef<uint8_t> Elts);
+ static Constant *get(LLVMContext &Context, ArrayRef<uint16_t> Elts);
+ static Constant *get(LLVMContext &Context, ArrayRef<uint32_t> Elts);
+ static Constant *get(LLVMContext &Context, ArrayRef<uint64_t> Elts);
+ static Constant *get(LLVMContext &Context, ArrayRef<float> Elts);
+ static Constant *get(LLVMContext &Context, ArrayRef<double> Elts);
+
+ /// getSplat - Return a ConstantVector with the specified constant in each
+ /// element. The specified constant has to be a of a compatible type (i8/i16/
+ /// i32/i64/float/double) and must be a ConstantFP or ConstantInt.
+ static Constant *getSplat(unsigned NumElts, Constant *Elt);
+
+ /// getSplatValue - If this is a splat constant, meaning that all of the
+ /// elements have the same value, return that value. Otherwise return NULL.
+ Constant *getSplatValue() const;
/// getType - Specialize the getType() method to always return a VectorType,
/// which reduces the amount of casting needed in parts of the compiler.
/// Methods for support type inquiry through isa, cast, and dyn_cast:
///
- static bool classof(const ConstantDataVector *) { return true; }
static bool classof(const Value *V) {
return V->getValueID() == ConstantDataVectorVal;
}
/// BlockAddress - The address of a basic block.
///
class BlockAddress : public Constant {
- void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
+ void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
void *operator new(size_t s) { return User::operator new(s, 2); }
BlockAddress(Function *F, BasicBlock *BB);
public:
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
/// Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const BlockAddress *) { return true; }
static inline bool classof(const Value *V) {
return V->getValueID() == BlockAddressVal;
}
return getLShr(C1, C2, true);
}
+ /// getBinOpIdentity - Return the identity for the given binary operation,
+ /// i.e. a constant C such that X op C = X and C op X = X for every X. It
+ /// returns null if the operator doesn't have an identity.
+ static Constant *getBinOpIdentity(unsigned Opcode, Type *Ty);
+
+ /// getBinOpAbsorber - Return the absorbing element for the given binary
+ /// operation, i.e. a constant C such that X op C = C and C op X = C for
+ /// every X. For example, this returns zero for integer multiplication.
+ /// It returns null if the operator doesn't have an absorbing element.
+ static Constant *getBinOpAbsorber(unsigned Opcode, Type *Ty);
+
/// Transparently provide more efficient getOperand methods.
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
/// Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const ConstantExpr *) { return true; }
static inline bool classof(const Value *V) {
return V->getValueID() == ConstantExprVal;
}
/// LangRef.html#undefvalues for details.
///
class UndefValue : public Constant {
- void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
- UndefValue(const UndefValue &); // DO NOT IMPLEMENT
+ void *operator new(size_t, unsigned) LLVM_DELETED_FUNCTION;
+ UndefValue(const UndefValue &) LLVM_DELETED_FUNCTION;
protected:
explicit UndefValue(Type *T) : Constant(T, UndefValueVal, 0, 0) {}
protected:
/// getSequentialElement - If this Undef has array or vector type, return a
/// undef with the right element type.
- UndefValue *getSequentialElement();
+ UndefValue *getSequentialElement() const;
/// getStructElement - If this undef has struct type, return a undef with the
/// right element type for the specified element.
- UndefValue *getStructElement(unsigned Elt);
+ UndefValue *getStructElement(unsigned Elt) const;
/// getElementValue - Return an undef of the right value for the specified GEP
/// index.
- UndefValue *getElementValue(Constant *C);
-
+ UndefValue *getElementValue(Constant *C) const;
+
+ /// getElementValue - Return an undef of the right value for the specified GEP
+ /// index.
+ UndefValue *getElementValue(unsigned Idx) const;
+
virtual void destroyConstant();
/// Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const UndefValue *) { return true; }
static bool classof(const Value *V) {
return V->getValueID() == UndefValueVal;
}
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