#define LLVM_CONSTANTS_H
#include "llvm/Constant.h"
-#include "llvm/Type.h"
#include "llvm/OperandTraits.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/APFloat.h"
-#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/ArrayRef.h"
namespace llvm {
class ArrayType;
+class IntegerType;
class StructType;
class PointerType;
class VectorType;
+class SequentialType;
template<class ConstantClass, class TypeClass, class ValType>
struct ConstantCreator;
/// represents both boolean and integral constants.
/// @brief Class for constant integers.
class ConstantInt : public Constant {
- static ConstantInt *TheTrueVal, *TheFalseVal;
+ 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
return User::operator new(s, 0);
}
public:
+ static ConstantInt *getTrue(LLVMContext &Context);
+ static ConstantInt *getFalse(LLVMContext &Context);
+ 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.
- static ConstantInt* get(LLVMContext &Context, const APInt& V);
+ static ConstantInt *get(LLVMContext &Context, const APInt &V);
+
+ /// Return a ConstantInt constructed from the string strStart with the given
+ /// radix.
+ 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.
/// @brief Return the constant's value.
- inline const APInt& getValue() const {
+ inline const APInt &getValue() const {
return Val;
}
/// 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 ConstantFP* get(LLVMContext &Context, const APFloat& V);
- static ConstantFP* getNegativeZero(const Type* Ty);
+ 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(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; }
+ static bool isValueValidForType(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. Don't depend on == for doubles to tell us it's zero, it
- /// considers -0.0 to be null as well as 0.0. :(
- 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();
- }
+ /// 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(); }
/// isExactlyValue - We don't rely on operator== working on double values, as
/// it returns true for things that are clearly not equal, like -0.0 and 0.0.
/// two floating point values. The version with a double operand is retained
/// because it's so convenient to write isExactlyValue(2.0), but please use
/// it only for simple constants.
- bool isExactlyValue(const APFloat& V) const;
+ bool isExactlyValue(const APFloat &V) const;
bool isExactlyValue(double V) const {
bool ignored;
/// 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:
- /// isNullValue - Return true if this is the value that would be returned by
- /// getNullValue.
- virtual bool isNullValue() const { return true; }
-
+ static ConstantAggregateZero *get(Type *Ty);
+
virtual void destroyConstant();
+ /// getSequentialElement - If this CAZ has array or vector type, return a zero
+ /// with the right element type.
+ Constant *getSequentialElement();
+
+ /// getStructElement - If this CAZ has struct type, return a zero with the
+ /// right element type for the specified element.
+ Constant *getStructElement(unsigned Elt);
+
+ /// getElementValue - Return a zero of the right value for the specified GEP
+ /// index.
+ Constant *getElementValue(Constant *C);
+
+ /// getElementValue - Return a zero of the right value for the specified GEP
+ /// index.
+ Constant *getElementValue(unsigned Idx);
+
/// Methods for support type inquiry through isa, cast, and dyn_cast:
///
static bool classof(const ConstantAggregateZero *) { return true; }
std::vector<Constant*> >;
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
/// 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(const StringRef &Initializer, bool AddNull = true);
+ 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
///
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; }
+ /// 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);
};
template <>
-struct OperandTraits<ConstantArray> : VariadicOperandTraits<> {
+struct OperandTraits<ConstantArray> :
+ public VariadicOperandTraits<ConstantArray> {
};
-DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS(ConstantArray, Constant)
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantArray, Constant)
//===----------------------------------------------------------------------===//
// ConstantStruct - Constant Struct Declarations
std::vector<Constant*> >;
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(const std::vector<Constant*>& V, bool Packed = false);
- static Constant* get(Constant* const *Vals, unsigned NumVals,
- bool Packed = false);
+ 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();
};
template <>
-struct OperandTraits<ConstantStruct> : VariadicOperandTraits<> {
+struct OperandTraits<ConstantStruct> :
+ public VariadicOperandTraits<ConstantStruct> {
};
-DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS(ConstantStruct, Constant)
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantStruct, Constant)
+
//===----------------------------------------------------------------------===//
/// ConstantVector - Constant Vector Declarations
std::vector<Constant*> >;
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(const VectorType* T, const std::vector<Constant*>& V);
- static Constant* get(const std::vector<Constant*>& V);
- static Constant* get(Constant* const* Vals, unsigned NumVals);
+ static Constant *get(ArrayRef<Constant*> V);
/// 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.
- Constant *getSplatValue();
+ Constant *getSplatValue() const;
virtual void destroyConstant();
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U);
};
template <>
-struct OperandTraits<ConstantVector> : VariadicOperandTraits<> {
+struct OperandTraits<ConstantVector> :
+ 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 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.
+///
+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) {}
+ ~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 float.
+ 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;
+
+ /// 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;
+ 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 of data that contains no relocations, and whose
+/// element type is a simple 1/2/4/8-byte integer or float/double.
+///
+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(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);
+
+ /// 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 of data that contains no relocations, and
+/// whose element type is a simple 1/2/4/8-byte integer or float/double.
+///
+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(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);
+
+ /// 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.
+///
+class BlockAddress : public Constant {
+ void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
+ void *operator new(size_t s) { return User::operator new(s, 2); }
+ BlockAddress(Function *F, BasicBlock *BB);
+public:
+ /// get - Return a BlockAddress for the specified function and basic block.
+ static BlockAddress *get(Function *F, BasicBlock *BB);
+
+ /// get - Return a BlockAddress for the specified basic block. The basic
+ /// block must be embedded into a function.
+ static BlockAddress *get(BasicBlock *BB);
+
+ /// Transparently provide more efficient getOperand methods.
+ DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
+
+ Function *getFunction() const { return (Function*)Op<0>().get(); }
+ BasicBlock *getBasicBlock() const { return (BasicBlock*)Op<1>().get(); }
+
+ 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 BlockAddress *) { return true; }
+ static inline bool classof(const Value *V) {
+ return V->getValueID() == BlockAddressVal;
+ }
+};
+
+template <>
+struct OperandTraits<BlockAddress> :
+ public FixedNumOperandTraits<BlockAddress, 2> {
+};
+
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(BlockAddress, Value)
+
+
+//===----------------------------------------------------------------------===//
/// ConstantExpr - a constant value that is initialized with an expression using
/// other constant values.
///
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.
- SubclassData = 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);
- static Constant *getCompareTy(unsigned short pred, Constant *C1,
- Constant *C2);
- static Constant *getSelectTy(const Type *Ty,
- Constant *C1, Constant *C2, Constant *C3);
- static Constant *getGetElementPtrTy(const Type *Ty, Constant *C,
- Value* const *Idxs, unsigned NumIdxs);
- 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);
+ setValueSubclassData(Opcode);
+ }
public:
// Static methods to construct a ConstantExpr of different kinds. Note that
// ConstantExpr class, because they will attempt to fold the constant
// expression into something simpler if possible.
- /// Cast constant expr
- ///
-
/// getAlignOf constant expr - computes the alignment of a type in a target
- /// independent way (Note: the return type is an i32; Note: assumes that i8
- /// is byte aligned).
- static Constant* getAlignOf(const Type* Ty);
-
- /// getSizeOf constant expr - computes the size of a type in a target
/// independent way (Note: the return type is an i64).
+ 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(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(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* getSizeOf(const Type* Ty);
-
- static Constant* getNeg(Constant* C);
- static Constant* getFNeg(Constant* C);
- static Constant* getNot(Constant* C);
- static Constant* getAdd(Constant* C1, Constant* C2);
- static Constant* getFAdd(Constant* C1, Constant* C2);
- static Constant* getSub(Constant* C1, Constant* C2);
- static Constant* getFSub(Constant* C1, Constant* C2);
- static Constant* getMul(Constant* C1, Constant* C2);
- static Constant* getFMul(Constant* C1, Constant* C2);
- static Constant* getUDiv(Constant* C1, Constant* C2);
- static Constant* getSDiv(Constant* C1, Constant* C2);
- static Constant* getFDiv(Constant* C1, Constant* C2);
- static Constant* getURem(Constant* C1, Constant* C2);
- static Constant* getSRem(Constant* C1, Constant* C2);
- static Constant* getFRem(Constant* C1, Constant* C2);
- static Constant* getAnd(Constant* C1, Constant* C2);
- static Constant* getOr(Constant* C1, Constant* C2);
- static Constant* getXor(Constant* C1, Constant* C2);
- static Constant* getShl(Constant* C1, Constant* C2);
- static Constant* getLShr(Constant* C1, Constant* C2);
- static Constant* getAShr(Constant* C1, Constant* C2);
- 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 *getOffsetOf(Type *Ty, Constant *FieldNo);
+
+ static Constant *getNeg(Constant *C, bool HasNUW = false, bool HasNSW =false);
+ static Constant *getFNeg(Constant *C);
+ static Constant *getNot(Constant *C);
+ static Constant *getAdd(Constant *C1, Constant *C2,
+ bool HasNUW = false, bool HasNSW = false);
+ static Constant *getFAdd(Constant *C1, Constant *C2);
+ static Constant *getSub(Constant *C1, Constant *C2,
+ bool HasNUW = false, bool HasNSW = false);
+ static Constant *getFSub(Constant *C1, Constant *C2);
+ static Constant *getMul(Constant *C1, Constant *C2,
+ bool HasNUW = false, bool HasNSW = false);
+ static Constant *getFMul(Constant *C1, Constant *C2);
+ static Constant *getUDiv(Constant *C1, Constant *C2, bool isExact = false);
+ static Constant *getSDiv(Constant *C1, Constant *C2, bool isExact = false);
+ static Constant *getFDiv(Constant *C1, Constant *C2);
+ static Constant *getURem(Constant *C1, Constant *C2);
+ static Constant *getSRem(Constant *C1, Constant *C2);
+ static Constant *getFRem(Constant *C1, Constant *C2);
+ static Constant *getAnd(Constant *C1, Constant *C2);
+ static Constant *getOr(Constant *C1, Constant *C2);
+ static Constant *getXor(Constant *C1, Constant *C2);
+ static Constant *getShl(Constant *C1, Constant *C2,
+ 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, 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 *getNSWAdd(Constant *C1, Constant *C2) {
+ return getAdd(C1, C2, false, true);
+ }
+ static Constant *getNUWAdd(Constant *C1, Constant *C2) {
+ return getAdd(C1, C2, true, false);
+ }
+ static Constant *getNSWSub(Constant *C1, Constant *C2) {
+ return getSub(C1, C2, false, true);
+ }
+ static Constant *getNUWSub(Constant *C1, Constant *C2) {
+ return getSub(C1, C2, true, false);
+ }
+ static Constant *getNSWMul(Constant *C1, Constant *C2) {
+ return getMul(C1, C2, false, true);
+ }
+ static Constant *getNUWMul(Constant *C1, Constant *C2) {
+ return getMul(C1, C2, true, false);
+ }
+ static Constant *getNSWShl(Constant *C1, Constant *C2) {
+ return getShl(C1, C2, false, true);
+ }
+ static Constant *getNUWShl(Constant *C1, Constant *C2) {
+ return getShl(C1, C2, true, false);
+ }
+ static Constant *getExactSDiv(Constant *C1, Constant *C2) {
+ return getSDiv(C1, C2, true);
+ }
+ static Constant *getExactUDiv(Constant *C1, Constant *C2) {
+ return getUDiv(C1, C2, true);
+ }
+ static Constant *getExactAShr(Constant *C1, Constant *C2) {
+ return getAShr(C1, C2, true);
+ }
+ static Constant *getExactLShr(Constant *C1, Constant *C2) {
+ return getLShr(C1, C2, true);
+ }
/// Transparently provide more efficient getOperand methods.
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
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
/// and the getIndices() method may be used.
bool hasIndices() const;
+ /// @brief Return true if this is a getelementptr expression and all
+ /// the index operands are compile-time known integers within the
+ /// corresponding notional static array extents. Note that this is
+ /// not equivalant to, a subset of, or a superset of the "inbounds"
+ /// property.
+ bool isGEPWithNoNotionalOverIndexing() const;
+
/// 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 *get(unsigned Opcode, Constant *C1, Constant *C2);
+ static Constant *get(unsigned Opcode, Constant *C1, Constant *C2,
+ unsigned Flags = 0);
/// @brief Return an ICmp or FCmp comparison operator constant expression.
static Constant *getCompare(unsigned short pred, Constant *C1, Constant *C2);
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);
+ 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,
+ 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,
+ 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 SubclassData; }
+ unsigned getOpcode() const { return getSubclassDataFromValue(); }
/// getPredicate - Return the ICMP or FCMP predicate value. Assert if this is
/// not an ICMP or FCMP constant expression.
/// 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);
static inline bool classof(const Value *V) {
return V->getValueID() == ConstantExprVal;
}
+
+private:
+ // Shadow Value::setValueSubclassData with a private forwarding method so that
+ // subclasses cannot accidentally use it.
+ void setValueSubclassData(unsigned short D) {
+ Value::setValueSubclassData(D);
+ }
};
template <>
-struct OperandTraits<ConstantExpr> : VariadicOperandTraits<1> {
+struct OperandTraits<ConstantExpr> :
+ 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.
/// These are used for a variety of purposes, including global variable
/// initializers and operands to instructions. 'undef' values can occur with
-/// any type.
+/// any first-class type.
+///
+/// Undef values aren't exactly constants; if they have multiple uses, they
+/// can appear to have different bit patterns at each use. See
+/// 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);
- /// isNullValue - Return true if this is the value that would be returned by
- /// getNullValue.
- virtual bool isNullValue() const { return false; }
+ /// getSequentialElement - If this Undef has array or vector type, return a
+ /// undef with the right element type.
+ UndefValue *getSequentialElement();
+
+ /// getStructElement - If this undef has struct type, return a undef with the
+ /// right element type for the specified element.
+ UndefValue *getStructElement(unsigned Elt);
+
+ /// getElementValue - Return an undef of the right value for the specified GEP
+ /// index.
+ UndefValue *getElementValue(Constant *C);
+
+ /// getElementValue - Return an undef of the right value for the specified GEP
+ /// index.
+ UndefValue *getElementValue(unsigned Idx);
virtual void destroyConstant();
return V->getValueID() == UndefValueVal;
}
};
+
} // End llvm namespace
#endif
projects / oota-llvm.git / blobdiff