class StructType;
class PointerType;
class VectorType;
+class SequentialType;
template<class ConstantClass, class TypeClass, class ValType>
struct ConstantCreator;
template<class ConstantClass, class TypeClass>
+struct ConstantArrayCreator;
+template<class ConstantClass, class TypeClass>
struct ConvertConstantType;
//===----------------------------------------------------------------------===//
/// represents both boolean and integral constants.
/// @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
- ConstantInt(const IntegerType *Ty, const APInt& V);
+ ConstantInt(IntegerType *Ty, const APInt& V);
APInt Val;
protected:
// allocate space for exactly zero operands
public:
static ConstantInt *getTrue(LLVMContext &Context);
static ConstantInt *getFalse(LLVMContext &Context);
- static Constant *getTrue(const Type *Ty);
- static Constant *getFalse(const Type *Ty);
+ static Constant *getTrue(Type *Ty);
+ static Constant *getFalse(Type *Ty);
/// If Ty is a vector type, return a Constant with a splat of the given
/// value. Otherwise return a ConstantInt for the given value.
- static Constant *get(const Type *Ty, uint64_t V, bool isSigned = false);
+ static Constant *get(Type *Ty, uint64_t V, bool isSigned = false);
/// Return a ConstantInt with the specified integer value for the specified
/// type. If the type is wider than 64 bits, the value will be zero-extended
/// be interpreted as a 64-bit signed integer and sign-extended to fit
/// the type.
/// @brief Get a ConstantInt for a specific value.
- static ConstantInt *get(const IntegerType *Ty, uint64_t V,
+ static ConstantInt *get(IntegerType *Ty, uint64_t V,
bool isSigned = false);
/// Return a ConstantInt with the specified value for the specified type. The
/// either getSExtValue() or getZExtValue() will yield a correctly sized and
/// signed value for the type Ty.
/// @brief Get a ConstantInt for a specific signed value.
- static ConstantInt *getSigned(const IntegerType *Ty, int64_t V);
- static Constant *getSigned(const Type *Ty, int64_t V);
+ static ConstantInt *getSigned(IntegerType *Ty, int64_t V);
+ static Constant *getSigned(Type *Ty, int64_t V);
/// Return a ConstantInt with the specified value and an implied Type. The
/// type is the integer type that corresponds to the bit width of the value.
/// Return a ConstantInt constructed from the string strStart with the given
/// radix.
- static ConstantInt *get(const IntegerType *Ty, StringRef Str,
+ static ConstantInt *get(IntegerType *Ty, StringRef Str,
uint8_t radix);
/// If Ty is a vector type, return a Constant with a splat of the given
/// value. Otherwise return a ConstantInt for the given value.
- static Constant *get(const Type* Ty, const APInt& V);
+ static Constant *get(Type* Ty, const APInt& V);
/// Return the constant as an APInt value reference. This allows clients to
/// obtain a copy of the value, with all its precision in tact.
/// getType - Specialize the getType() method to always return an IntegerType,
/// which reduces the amount of casting needed in parts of the compiler.
///
- inline const IntegerType *getType() const {
- return reinterpret_cast<const IntegerType*>(Value::getType());
+ inline IntegerType *getType() const {
+ return reinterpret_cast<IntegerType*>(Value::getType());
}
/// This static method returns true if the type Ty is big enough to
/// to the appropriate unsigned type before calling the method.
/// @returns true if V is a valid value for type Ty
/// @brief Determine if the value is in range for the given type.
- static bool isValueValidForType(const Type *Ty, uint64_t V);
- static bool isValueValidForType(const Type *Ty, int64_t V);
+ static bool isValueValidForType(Type *Ty, uint64_t V);
+ static bool isValueValidForType(Type *Ty, int64_t V);
- /// This function will return true iff this constant represents the "null"
- /// value that would be returned by the getNullValue method.
- /// @returns true if this is the null integer value.
- /// @brief Determine if the value is null.
- virtual bool isNullValue() const {
- return Val == 0;
- }
+ bool isNegative() const { return Val.isNegative(); }
/// This is just a convenience method to make client code smaller for a
/// common code. It also correctly performs the comparison without the
/// to true.
/// @returns true iff this constant's bits are all set to true.
/// @brief Determine if the value is all ones.
- bool isAllOnesValue() const {
+ bool isMinusOne() const {
return Val.isAllOnesValue();
}
/// value.
/// @returns true iff this constant is greater or equal to the given number.
/// @brief Determine if the value is greater or equal to the given number.
- bool uge(uint64_t Num) {
+ bool uge(uint64_t Num) const {
return Val.getActiveBits() > 64 || Val.getZExtValue() >= Num;
}
///
class ConstantFP : public Constant {
APFloat Val;
+ virtual void anchor();
void *operator new(size_t, unsigned);// DO NOT IMPLEMENT
ConstantFP(const ConstantFP &); // DO NOT IMPLEMENT
friend class LLVMContextImpl;
protected:
- ConstantFP(const Type *Ty, const APFloat& V);
+ ConstantFP(Type *Ty, const APFloat& V);
protected:
// allocate space for exactly zero operands
void *operator new(size_t s) {
/// Floating point negation must be implemented with f(x) = -0.0 - x. This
/// method returns the negative zero constant for floating point or vector
/// floating point types; for all other types, it returns the null value.
- static Constant *getZeroValueForNegation(const Type *Ty);
+ static Constant *getZeroValueForNegation(Type *Ty);
/// get() - This returns a ConstantFP, or a vector containing a splat of a
/// ConstantFP, for the specified value in the specified type. This should
/// only be used for simple constant values like 2.0/1.0 etc, that are
/// known-valid both as host double and as the target format.
- static Constant *get(const Type* Ty, double V);
- static Constant *get(const Type* Ty, StringRef Str);
+ static Constant *get(Type* Ty, double V);
+ static Constant *get(Type* Ty, StringRef Str);
static ConstantFP *get(LLVMContext &Context, const APFloat &V);
- static ConstantFP *getNegativeZero(const Type* Ty);
- static ConstantFP *getInfinity(const Type *Ty, bool Negative = false);
+ static ConstantFP *getNegativeZero(Type* Ty);
+ static ConstantFP *getInfinity(Type *Ty, bool Negative = false);
/// isValueValidForType - return true if Ty is big enough to represent V.
- static bool isValueValidForType(const Type *Ty, const APFloat &V);
- inline const APFloat& getValueAPF() const { return Val; }
-
- /// isNullValue - Return true if this is the value that would be returned by
- /// getNullValue. For ConstantFP, this is +0.0, but not -0.0. To handle the
- /// two the same, use isZero().
- virtual bool isNullValue() const;
-
- /// isNegativeZeroValue - Return true if the value is what would be returned
- /// by getZeroValueForNegation.
- virtual bool isNegativeZeroValue() const {
- return Val.isZero() && Val.isNegative();
- }
+ static bool isValueValidForType(Type *Ty, const APFloat &V);
+ inline const APFloat &getValueAPF() const { return Val; }
/// isZero - Return true if the value is positive or negative zero.
bool isZero() const { return Val.isZero(); }
+ /// isNegative - Return true if the sign bit is set.
+ bool isNegative() const { return Val.isNegative(); }
+
/// isNaN - Return true if the value is a NaN.
bool isNaN() const { return Val.isNaN(); }
/// ConstantAggregateZero - All zero aggregate value
///
class ConstantAggregateZero : public Constant {
- friend struct ConstantCreator<ConstantAggregateZero, Type, char>;
void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
ConstantAggregateZero(const ConstantAggregateZero &); // DO NOT IMPLEMENT
protected:
- explicit ConstantAggregateZero(const Type *ty)
+ explicit ConstantAggregateZero(Type *ty)
: Constant(ty, ConstantAggregateZeroVal, 0, 0) {}
protected:
// allocate space for exactly zero operands
return User::operator new(s, 0);
}
public:
- static ConstantAggregateZero* get(const Type *Ty);
+ static ConstantAggregateZero *get(Type *Ty);
- /// isNullValue - Return true if this is the value that would be returned by
- /// getNullValue.
- virtual bool isNullValue() const { return true; }
-
virtual void destroyConstant();
+ /// getSequentialElement - If this CAZ has array or vector type, return a zero
+ /// with the right element type.
+ 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) const;
+
+ /// getElementValue - Return a zero of the right value for the specified GEP
+ /// index.
+ 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; }
/// ConstantArray - Constant Array Declarations
///
class ConstantArray : public Constant {
- friend struct ConstantCreator<ConstantArray, ArrayType,
- std::vector<Constant*> >;
+ friend struct ConstantArrayCreator<ConstantArray, ArrayType>;
ConstantArray(const ConstantArray &); // DO NOT IMPLEMENT
protected:
- ConstantArray(const ArrayType *T, const std::vector<Constant*> &Val);
+ ConstantArray(ArrayType *T, ArrayRef<Constant *> Val);
public:
// ConstantArray accessors
- static Constant *get(const ArrayType *T, const std::vector<Constant*> &V);
- static Constant *get(const ArrayType *T, Constant *const *Vals,
- unsigned NumVals);
+ 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);
/// getType - Specialize the getType() method to always return an ArrayType,
/// which reduces the amount of casting needed in parts of the compiler.
///
- inline const ArrayType *getType() const {
- return reinterpret_cast<const ArrayType*>(Value::getType());
+ inline ArrayType *getType() const {
+ 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;
-
- /// isNullValue - Return true if this is the value that would be returned by
- /// getNullValue. This always returns false because zero arrays are always
- /// created as ConstantAggregateZero objects.
- virtual bool isNullValue() const { return false; }
-
virtual void destroyConstant();
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
public VariadicOperandTraits<ConstantArray> {
};
-DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS(ConstantArray, Constant)
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantArray, Constant)
//===----------------------------------------------------------------------===//
// ConstantStruct - Constant Struct Declarations
//
class ConstantStruct : public Constant {
- friend struct ConstantCreator<ConstantStruct, StructType,
- std::vector<Constant*> >;
+ friend struct ConstantArrayCreator<ConstantStruct, StructType>;
ConstantStruct(const ConstantStruct &); // DO NOT IMPLEMENT
protected:
- ConstantStruct(const StructType *T, const std::vector<Constant*> &Val);
+ ConstantStruct(StructType *T, ArrayRef<Constant *> Val);
public:
// ConstantStruct accessors
- static Constant *get(const StructType *T, const std::vector<Constant*> &V);
- static Constant *get(LLVMContext &Context,
- const std::vector<Constant*> &V, bool Packed);
- static Constant *get(LLVMContext &Context,
- Constant *const *Vals, unsigned NumVals, bool Packed);
- static Constant *get(LLVMContext &Context, bool Packed,
- Constant * Val, ...) END_WITH_NULL;
+ static Constant *get(StructType *T, ArrayRef<Constant*> V);
+ static Constant *get(StructType *T, ...) END_WITH_NULL;
+
+ /// getAnon - Return an anonymous struct that has the specified
+ /// elements. If the struct is possibly empty, then you must specify a
+ /// context.
+ static Constant *getAnon(ArrayRef<Constant*> V, bool Packed = false) {
+ return get(getTypeForElements(V, Packed), V);
+ }
+ static Constant *getAnon(LLVMContext &Ctx,
+ ArrayRef<Constant*> V, bool Packed = false) {
+ return get(getTypeForElements(Ctx, V, Packed), V);
+ }
+ /// getTypeForElements - Return an anonymous struct type to use for a constant
+ /// with the specified set of elements. The list must not be empty.
+ static StructType *getTypeForElements(ArrayRef<Constant*> V,
+ bool Packed = false);
+ /// getTypeForElements - This version of the method allows an empty list.
+ static StructType *getTypeForElements(LLVMContext &Ctx,
+ ArrayRef<Constant*> V,
+ bool Packed = false);
+
/// Transparently provide more efficient getOperand methods.
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
/// getType() specialization - Reduce amount of casting...
///
- inline const StructType *getType() const {
- return reinterpret_cast<const StructType*>(Value::getType());
- }
-
- /// isNullValue - Return true if this is the value that would be returned by
- /// getNullValue. This always returns false because zero structs are always
- /// created as ConstantAggregateZero objects.
- virtual bool isNullValue() const {
- return false;
+ inline StructType *getType() const {
+ return reinterpret_cast<StructType*>(Value::getType());
}
virtual void destroyConstant();
public VariadicOperandTraits<ConstantStruct> {
};
-DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS(ConstantStruct, Constant)
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantStruct, Constant)
//===----------------------------------------------------------------------===//
/// ConstantVector - Constant Vector Declarations
///
class ConstantVector : public Constant {
- friend struct ConstantCreator<ConstantVector, VectorType,
- std::vector<Constant*> >;
+ friend struct ConstantArrayCreator<ConstantVector, VectorType>;
ConstantVector(const ConstantVector &); // DO NOT IMPLEMENT
protected:
- ConstantVector(const VectorType *T, const std::vector<Constant*> &Val);
+ ConstantVector(VectorType *T, ArrayRef<Constant *> Val);
public:
// ConstantVector accessors
static Constant *get(ArrayRef<Constant*> V);
- // FIXME: Eliminate this constructor form.
- static Constant *get(const VectorType *T, const std::vector<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);
/// getType - Specialize the getType() method to always return a VectorType,
/// which reduces the amount of casting needed in parts of the compiler.
///
- inline const VectorType *getType() const {
- return reinterpret_cast<const VectorType*>(Value::getType());
+ inline VectorType *getType() const {
+ return reinterpret_cast<VectorType*>(Value::getType());
}
-
- /// isNullValue - Return true if this is the value that would be returned by
- /// getNullValue. This always returns false because zero vectors are always
- /// created as ConstantAggregateZero objects.
- virtual bool isNullValue() const { return false; }
-
- /// This function will return true iff every element in this vector constant
- /// is set to all ones.
- /// @returns true iff this constant's emements are all set to all ones.
- /// @brief Determine if the value is all ones.
- bool isAllOnesValue() const;
/// getSplatValue - If this is a splat constant, meaning that all of the
/// elements have the same value, return that value. Otherwise return NULL.
public VariadicOperandTraits<ConstantVector> {
};
-DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS(ConstantVector, Constant)
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantVector, Constant)
//===----------------------------------------------------------------------===//
/// ConstantPointerNull - a constant pointer value that points to null
///
class ConstantPointerNull : public Constant {
- friend struct ConstantCreator<ConstantPointerNull, PointerType, char>;
void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
ConstantPointerNull(const ConstantPointerNull &); // DO NOT IMPLEMENT
protected:
- explicit ConstantPointerNull(const PointerType *T)
- : Constant(reinterpret_cast<const Type*>(T),
+ explicit ConstantPointerNull(PointerType *T)
+ : Constant(reinterpret_cast<Type*>(T),
Value::ConstantPointerNullVal, 0, 0) {}
protected:
}
public:
/// get() - Static factory methods - Return objects of the specified value
- static ConstantPointerNull *get(const PointerType *T);
-
- /// isNullValue - Return true if this is the value that would be returned by
- /// getNullValue.
- virtual bool isNullValue() const { return true; }
+ static ConstantPointerNull *get(PointerType *T);
virtual void destroyConstant();
/// getType - Specialize the getType() method to always return an PointerType,
/// which reduces the amount of casting needed in parts of the compiler.
///
- inline const PointerType *getType() const {
- return reinterpret_cast<const PointerType*>(Value::getType());
+ inline PointerType *getType() const {
+ return reinterpret_cast<PointerType*>(Value::getType());
}
/// Methods for support type inquiry through isa, cast, and dyn_cast:
return V->getValueID() == ConstantPointerNullVal;
}
};
+
+//===----------------------------------------------------------------------===//
+/// 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;
+ /// DataElements - A pointer to the bytes underlying this constant (which is
+ /// owned by the uniquing StringMap).
+ const char *DataElements;
+
+ /// Next - This forms a link list of ConstantDataSequential nodes that have
+ /// the same value but different type. For example, 0,0,0,1 could be a 4
+ /// 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
+protected:
+ explicit ConstantDataSequential(Type *ty, ValueTy VT, const char *Data)
+ : Constant(ty, VT, 0, 0), DataElements(Data), Next(0) {}
+ ~ConstantDataSequential() { delete Next; }
+
+ static Constant *getImpl(StringRef Bytes, Type *Ty);
+
+protected:
+ // allocate space for exactly zero operands.
+ void *operator new(size_t s) {
+ return User::operator new(s, 0);
+ }
+public:
+
+ /// isElementTypeCompatible - Return true if a ConstantDataSequential can be
+ /// formed with a vector or array of the specified element type.
+ /// ConstantDataArray only works with normal float and int types that are
+ /// stored densely in memory, not with things like i42 or x86_f80.
+ static bool isElementTypeCompatible(const Type *Ty);
+
+ /// getElementAsInteger - If this is a sequential container of integers (of
+ /// any size), return the specified element in the low bits of a uint64_t.
+ uint64_t getElementAsInteger(unsigned i) const;
+
+ /// getElementAsAPFloat - If this is a sequential container of floating point
+ /// type, return the specified element as an APFloat.
+ APFloat getElementAsAPFloat(unsigned i) const;
+
+ /// getElementAsFloat - If this is an sequential container of floats, return
+ /// the specified element as a float.
+ float getElementAsFloat(unsigned i) const;
+
+ /// getElementAsDouble - If this is an sequential container of doubles, return
+ /// the specified element as a double.
+ double getElementAsDouble(unsigned i) const;
+
+ /// getElementAsConstant - Return a Constant for a specified index's element.
+ /// Note that this has to compute a new constant to return, so it isn't as
+ /// efficient as getElementAsInteger/Float/Double.
+ Constant *getElementAsConstant(unsigned i) const;
+
+ /// getType - Specialize the getType() method to always return a
+ /// SequentialType, which reduces the amount of casting needed in parts of the
+ /// compiler.
+ inline SequentialType *getType() const {
+ return reinterpret_cast<SequentialType*>(Value::getType());
+ }
+
+ /// 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;
+ }
+private:
+ const char *getElementPointer(unsigned Elt) const;
+};
+
+//===----------------------------------------------------------------------===//
+/// 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
+ virtual void anchor();
+ friend class ConstantDataSequential;
+ explicit ConstantDataArray(Type *ty, const char *Data)
+ : ConstantDataSequential(ty, ConstantDataArrayVal, Data) {}
+protected:
+ // allocate space for exactly zero operands.
+ void *operator new(size_t s) {
+ return User::operator new(s, 0);
+ }
+public:
+
+ /// 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(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.
+ ///
+ inline ArrayType *getType() const {
+ return reinterpret_cast<ArrayType*>(Value::getType());
+ }
+
+ /// 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 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
+ virtual void anchor();
+ friend class ConstantDataSequential;
+ explicit ConstantDataVector(Type *ty, const char *Data)
+ : ConstantDataSequential(ty, ConstantDataVectorVal, Data) {}
+protected:
+ // allocate space for exactly zero operands.
+ void *operator new(size_t s) {
+ return User::operator new(s, 0);
+ }
+public:
+
+ /// 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(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.
+ ///
+ inline VectorType *getType() const {
+ return reinterpret_cast<VectorType*>(Value::getType());
+ }
+
+ /// 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.
///
Function *getFunction() const { return (Function*)Op<0>().get(); }
BasicBlock *getBasicBlock() const { return (BasicBlock*)Op<1>().get(); }
- /// isNullValue - Return true if this is the value that would be returned by
- /// getNullValue.
- virtual bool isNullValue() const { return false; }
-
virtual void destroyConstant();
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
public FixedNumOperandTraits<BlockAddress, 2> {
};
-DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS(BlockAddress, Value)
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(BlockAddress, Value)
//===----------------------------------------------------------------------===//
friend struct ConvertConstantType<ConstantExpr, Type>;
protected:
- ConstantExpr(const Type *ty, unsigned Opcode, Use *Ops, unsigned NumOps)
+ ConstantExpr(Type *ty, unsigned Opcode, Use *Ops, unsigned NumOps)
: Constant(ty, ConstantExprVal, Ops, NumOps) {
// Operation type (an Instruction opcode) is stored as the SubclassData.
setValueSubclassData(Opcode);
}
- // These private methods are used by the type resolution code to create
- // ConstantExprs in intermediate forms.
- static Constant *getTy(const Type *Ty, unsigned Opcode,
- Constant *C1, Constant *C2,
- unsigned Flags = 0);
- static Constant *getCompareTy(unsigned short pred, Constant *C1,
- Constant *C2);
- static Constant *getSelectTy(const Type *Ty,
- Constant *C1, Constant *C2, Constant *C3);
- template<typename IndexTy>
- static Constant *getGetElementPtrTy(const Type *Ty, Constant *C,
- IndexTy const *Idxs, unsigned NumIdxs,
- bool InBounds);
- static Constant *getExtractElementTy(const Type *Ty, Constant *Val,
- Constant *Idx);
- static Constant *getInsertElementTy(const Type *Ty, Constant *Val,
- Constant *Elt, Constant *Idx);
- static Constant *getShuffleVectorTy(const Type *Ty, Constant *V1,
- Constant *V2, Constant *Mask);
- static Constant *getExtractValueTy(const Type *Ty, Constant *Agg,
- const unsigned *Idxs, unsigned NumIdxs);
- static Constant *getInsertValueTy(const Type *Ty, Constant *Agg,
- Constant *Val,
- const unsigned *Idxs, unsigned NumIdxs);
- template<typename IndexTy>
- static Constant *getGetElementPtrImpl(Constant *C,
- IndexTy const *IdxList,
- unsigned NumIdx, bool InBounds);
-
public:
// Static methods to construct a ConstantExpr of different kinds. Note that
// these methods may return a object that is not an instance of the
/// getAlignOf constant expr - computes the alignment of a type in a target
/// independent way (Note: the return type is an i64).
- static Constant *getAlignOf(const Type *Ty);
+ static Constant *getAlignOf(Type *Ty);
/// getSizeOf constant expr - computes the (alloc) size of a type (in
/// address-units, not bits) in a target independent way (Note: the return
/// type is an i64).
///
- static Constant *getSizeOf(const Type *Ty);
+ static Constant *getSizeOf(Type *Ty);
/// getOffsetOf constant expr - computes the offset of a struct field in a
/// target independent way (Note: the return type is an i64).
///
- static Constant *getOffsetOf(const StructType *STy, unsigned FieldNo);
+ static Constant *getOffsetOf(StructType *STy, unsigned FieldNo);
/// getOffsetOf constant expr - This is a generalized form of getOffsetOf,
/// which supports any aggregate type, and any Constant index.
///
- static Constant *getOffsetOf(const Type *Ty, Constant *FieldNo);
+ static Constant *getOffsetOf(Type *Ty, Constant *FieldNo);
static Constant *getNeg(Constant *C, bool HasNUW = false, bool HasNSW =false);
static Constant *getFNeg(Constant *C);
bool HasNUW = false, bool HasNSW = false);
static Constant *getLShr(Constant *C1, Constant *C2, bool isExact = false);
static Constant *getAShr(Constant *C1, Constant *C2, bool isExact = false);
- static Constant *getTrunc (Constant *C, const Type *Ty);
- static Constant *getSExt (Constant *C, const Type *Ty);
- static Constant *getZExt (Constant *C, const Type *Ty);
- static Constant *getFPTrunc (Constant *C, const Type *Ty);
- static Constant *getFPExtend(Constant *C, const Type *Ty);
- static Constant *getUIToFP (Constant *C, const Type *Ty);
- static Constant *getSIToFP (Constant *C, const Type *Ty);
- static Constant *getFPToUI (Constant *C, const Type *Ty);
- static Constant *getFPToSI (Constant *C, const Type *Ty);
- static Constant *getPtrToInt(Constant *C, const Type *Ty);
- static Constant *getIntToPtr(Constant *C, const Type *Ty);
- static Constant *getBitCast (Constant *C, const Type *Ty);
+ static Constant *getTrunc (Constant *C, Type *Ty);
+ static Constant *getSExt (Constant *C, Type *Ty);
+ static Constant *getZExt (Constant *C, Type *Ty);
+ static Constant *getFPTrunc (Constant *C, Type *Ty);
+ static Constant *getFPExtend(Constant *C, Type *Ty);
+ static Constant *getUIToFP (Constant *C, Type *Ty);
+ static Constant *getSIToFP (Constant *C, Type *Ty);
+ static Constant *getFPToUI (Constant *C, Type *Ty);
+ static Constant *getFPToSI (Constant *C, Type *Ty);
+ static Constant *getPtrToInt(Constant *C, Type *Ty);
+ static Constant *getIntToPtr(Constant *C, Type *Ty);
+ static Constant *getBitCast (Constant *C, Type *Ty);
static Constant *getNSWNeg(Constant *C) { return getNeg(C, false, true); }
static Constant *getNUWNeg(Constant *C) { return getNeg(C, true, false); }
static Constant *getCast(
unsigned ops, ///< The opcode for the conversion
Constant *C, ///< The constant to be converted
- const Type *Ty ///< The type to which the constant is converted
+ Type *Ty ///< The type to which the constant is converted
);
// @brief Create a ZExt or BitCast cast constant expression
static Constant *getZExtOrBitCast(
Constant *C, ///< The constant to zext or bitcast
- const Type *Ty ///< The type to zext or bitcast C to
+ Type *Ty ///< The type to zext or bitcast C to
);
// @brief Create a SExt or BitCast cast constant expression
static Constant *getSExtOrBitCast(
Constant *C, ///< The constant to sext or bitcast
- const Type *Ty ///< The type to sext or bitcast C to
+ Type *Ty ///< The type to sext or bitcast C to
);
// @brief Create a Trunc or BitCast cast constant expression
static Constant *getTruncOrBitCast(
Constant *C, ///< The constant to trunc or bitcast
- const Type *Ty ///< The type to trunc or bitcast C to
+ Type *Ty ///< The type to trunc or bitcast C to
);
/// @brief Create a BitCast or a PtrToInt cast constant expression
static Constant *getPointerCast(
Constant *C, ///< The pointer value to be casted (operand 0)
- const Type *Ty ///< The type to which cast should be made
+ Type *Ty ///< The type to which cast should be made
);
/// @brief Create a ZExt, Bitcast or Trunc for integer -> integer casts
static Constant *getIntegerCast(
Constant *C, ///< The integer constant to be casted
- const Type *Ty, ///< The integer type to cast to
+ Type *Ty, ///< The integer type to cast to
bool isSigned ///< Whether C should be treated as signed or not
);
/// @brief Create a FPExt, Bitcast or FPTrunc for fp -> fp casts
static Constant *getFPCast(
Constant *C, ///< The integer constant to be casted
- const Type *Ty ///< The integer type to cast to
+ Type *Ty ///< The integer type to cast to
);
/// @brief Return true if this is a convert constant expression
/// Select constant expr
///
- static Constant *getSelect(Constant *C, Constant *V1, Constant *V2) {
- return getSelectTy(V1->getType(), C, V1, V2);
- }
+ static Constant *getSelect(Constant *C, Constant *V1, Constant *V2);
/// get - Return a binary or shift operator constant expression,
/// folding if possible.
static Constant *getICmp(unsigned short pred, Constant *LHS, Constant *RHS);
static Constant *getFCmp(unsigned short pred, Constant *LHS, Constant *RHS);
- /// Getelementptr form. std::vector<Value*> is only accepted for convenience:
+ /// Getelementptr form. Value* is only accepted for convenience;
/// all elements must be Constant's.
///
static Constant *getGetElementPtr(Constant *C,
- Constant *const *IdxList, unsigned NumIdx,
- bool InBounds = false);
+ ArrayRef<Constant *> IdxList,
+ bool InBounds = false) {
+ return getGetElementPtr(C, makeArrayRef((Value * const *)IdxList.data(),
+ IdxList.size()),
+ InBounds);
+ }
static Constant *getGetElementPtr(Constant *C,
- Value *const *IdxList, unsigned NumIdx,
+ Constant *Idx,
+ bool InBounds = false) {
+ // This form of the function only exists to avoid ambiguous overload
+ // warnings about whether to convert Idx to ArrayRef<Constant *> or
+ // ArrayRef<Value *>.
+ return getGetElementPtr(C, cast<Value>(Idx), InBounds);
+ }
+ static Constant *getGetElementPtr(Constant *C,
+ ArrayRef<Value *> IdxList,
bool InBounds = false);
/// Create an "inbounds" getelementptr. See the documentation for the
/// "inbounds" flag in LangRef.html for details.
static Constant *getInBoundsGetElementPtr(Constant *C,
- Constant *const *IdxList,
- unsigned NumIdx) {
- return getGetElementPtr(C, IdxList, NumIdx, true);
+ ArrayRef<Constant *> IdxList) {
+ return getGetElementPtr(C, IdxList, true);
+ }
+ static Constant *getInBoundsGetElementPtr(Constant *C,
+ Constant *Idx) {
+ // This form of the function only exists to avoid ambiguous overload
+ // warnings about whether to convert Idx to ArrayRef<Constant *> or
+ // ArrayRef<Value *>.
+ return getGetElementPtr(C, Idx, true);
}
static Constant *getInBoundsGetElementPtr(Constant *C,
- Value* const *IdxList,
- unsigned NumIdx) {
- return getGetElementPtr(C, IdxList, NumIdx, true);
+ ArrayRef<Value *> IdxList) {
+ return getGetElementPtr(C, IdxList, true);
}
static Constant *getExtractElement(Constant *Vec, Constant *Idx);
static Constant *getInsertElement(Constant *Vec, Constant *Elt,Constant *Idx);
static Constant *getShuffleVector(Constant *V1, Constant *V2, Constant *Mask);
- static Constant *getExtractValue(Constant *Agg,
- const unsigned *IdxList, unsigned NumIdx);
+ static Constant *getExtractValue(Constant *Agg, ArrayRef<unsigned> Idxs);
static Constant *getInsertValue(Constant *Agg, Constant *Val,
- const unsigned *IdxList, unsigned NumIdx);
-
- /// isNullValue - Return true if this is the value that would be returned by
- /// getNullValue.
- virtual bool isNullValue() const { return false; }
+ ArrayRef<unsigned> Idxs);
/// getOpcode - Return the opcode at the root of this constant expression
unsigned getOpcode() const { return getSubclassDataFromValue(); }
/// getIndices - Assert that this is an insertvalue or exactvalue
/// expression and return the list of indices.
- const SmallVector<unsigned, 4> &getIndices() const;
+ ArrayRef<unsigned> getIndices() const;
/// getOpcodeName - Return a string representation for an opcode.
const char *getOpcodeName() const;
Constant *getWithOperandReplaced(unsigned OpNo, Constant *Op) const;
/// getWithOperands - This returns the current constant expression with the
- /// operands replaced with the specified values. The specified operands must
- /// match count and type with the existing ones.
- Constant *getWithOperands(const std::vector<Constant*> &Ops) const {
- return getWithOperands(&Ops[0], (unsigned)Ops.size());
+ /// operands replaced with the specified values. The specified array must
+ /// have the same number of operands as our current one.
+ Constant *getWithOperands(ArrayRef<Constant*> Ops) const {
+ return getWithOperands(Ops, getType());
}
- Constant *getWithOperands(Constant *const *Ops, unsigned NumOps) const;
-
+
+ /// getWithOperands - This returns the current constant expression with the
+ /// operands replaced with the specified values and with the specified result
+ /// type. The specified array must have the same number of operands as our
+ /// current one.
+ Constant *getWithOperands(ArrayRef<Constant*> Ops, Type *Ty) const;
+
virtual void destroyConstant();
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
public VariadicOperandTraits<ConstantExpr, 1> {
};
-DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS(ConstantExpr, Constant)
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantExpr, Constant)
//===----------------------------------------------------------------------===//
/// UndefValue - 'undef' values are things that do not have specified contents.
/// LangRef.html#undefvalues for details.
///
class UndefValue : public Constant {
- friend struct ConstantCreator<UndefValue, Type, char>;
void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
UndefValue(const UndefValue &); // DO NOT IMPLEMENT
protected:
- explicit UndefValue(const Type *T) : Constant(T, UndefValueVal, 0, 0) {}
+ explicit UndefValue(Type *T) : Constant(T, UndefValueVal, 0, 0) {}
protected:
// allocate space for exactly zero operands
void *operator new(size_t s) {
/// get() - Static factory methods - Return an 'undef' object of the specified
/// type.
///
- static UndefValue *get(const Type *T);
+ static UndefValue *get(Type *T);
+
+ /// getSequentialElement - If this Undef has array or vector type, return a
+ /// undef with the right element type.
+ 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) const;
+
+ /// getElementValue - Return an undef of the right value for the specified GEP
+ /// index.
+ UndefValue *getElementValue(Constant *C) const;
- /// isNullValue - Return true if this is the value that would be returned by
- /// getNullValue.
- virtual bool isNullValue() const { return false; }
+ /// getElementValue - Return an undef of the right value for the specified GEP
+ /// index.
+ UndefValue *getElementValue(unsigned Idx) const;
virtual void destroyConstant();
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