ConstantInt(const ConstantInt &); // DO NOT IMPLEMENT
ConstantInt(const IntegerType *Ty, const APInt& V);
APInt Val;
+ friend class LLVMContextImpl;
protected:
// allocate space for exactly zero operands
void *operator new(size_t s) {
return Val == V;
}
- /// getTrue/getFalse - Return the singleton true/false values.
- static inline ConstantInt *getTrue() {
- if (TheTrueVal) return TheTrueVal;
- return CreateTrueFalseVals(true);
- }
- static inline ConstantInt *getFalse() {
- if (TheFalseVal) return TheFalseVal;
- return CreateTrueFalseVals(false);
- }
-
- /// Return a ConstantInt with the specified value for the specified type. The
- /// value V will be canonicalized to an unsigned APInt. Accessing it with
- /// either getSExtValue() or getZExtValue() will yield a correctly sized and
- /// signed value for the type Ty.
- /// @brief Get a ConstantInt for a specific value.
- static ConstantInt *get(const Type *Ty, uint64_t V, bool isSigned = false);
-
- /// Return a ConstantInt with the specified value for the specified type. The
- /// value V will be canonicalized to a an unsigned APInt. Accessing it with
- /// 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 Type *Ty, int64_t V) {
- return get(Ty, V, true);
- }
-
- /// 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(const APInt &V);
-
/// getType - Specialize the getType() method to always return an IntegerType,
/// which reduces the amount of casting needed in parts of the compiler.
///
return Val.getLimitedValue(Limit);
}
- /// @returns the value for an integer constant of the given type that has all
- /// its bits set to true.
- /// @brief Get the all ones value
- static ConstantInt *getAllOnesValue(const Type *Ty);
-
/// @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;
}
- static void ResetTrueFalse() { TheTrueVal = TheFalseVal = 0; }
-private:
- static ConstantInt *CreateTrueFalseVals(bool WhichOne);
};
APFloat Val;
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);
protected:
return User::operator new(s, 0);
}
public:
- /// get() - Static factory methods - Return objects of the specified value
- static ConstantFP *get(const APFloat &V);
-
- /// get() - This returns a constant fp 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 double and as the target format.
- static ConstantFP *get(const Type *Ty, double V);
-
/// 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; }
/// 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;
-
- // Get a negative zero.
- static ConstantFP *getNegativeZero(const Type* Ty);
+
+ /// isNegativeZeroValue - Return true if the value is what would be returned
+ /// by getZeroValueForNegation.
+ virtual bool isNegativeZeroValue() const {
+ return Val.isZero() && Val.isNegative();
+ }
/// 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.
return User::operator new(s, 0);
}
public:
- /// get() - static factory method for creating a null aggregate. It is
- /// illegal to call this method with a non-aggregate type.
- static ConstantAggregateZero *get(const Type *Ty);
-
/// isNullValue - Return true if this is the value that would be returned by
/// getNullValue.
virtual bool isNullValue() const { return true; }
friend struct ConstantCreator<ConstantArray, ArrayType,
std::vector<Constant*> >;
ConstantArray(const ConstantArray &); // DO NOT IMPLEMENT
+ friend class LLVMContextImpl;
protected:
ConstantArray(const ArrayType *T, const std::vector<Constant*> &Val);
public:
- /// get() - Static factory methods - Return objects of the specified value
- static Constant *get(const ArrayType *T, const std::vector<Constant*> &);
- static Constant *get(const ArrayType *T,
- Constant*const*Vals, unsigned NumVals) {
- // FIXME: make this the primary ctor method.
- return get(T, std::vector<Constant*>(Vals, Vals+NumVals));
- }
-
- /// 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(const std::string &Initializer, bool AddNull = true);
-
/// Transparently provide more efficient getOperand methods.
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
/// get() - Static factory methods - Return objects of the specified value
///
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) {
- // FIXME: make this the primary ctor method.
- return get(std::vector<Constant*>(Vals, Vals+NumVals), Packed);
- }
/// Transparently provide more efficient getOperand methods.
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
public:
/// get() - Static factory methods - Return objects of the specified value
static Constant *get(const VectorType *T, const std::vector<Constant*> &);
- static Constant *get(const std::vector<Constant*> &V);
- static Constant *get(Constant*const* Vals, unsigned NumVals) {
- // FIXME: make this the primary ctor method.
- return get(std::vector<Constant*>(Vals, Vals+NumVals));
- }
/// Transparently provide more efficient getOperand methods.
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
inline const VectorType *getType() const {
return reinterpret_cast<const VectorType*>(Value::getType());
}
-
- /// @returns the value for a vector integer constant of the given type that
- /// has all its bits set to true.
- /// @brief Get the all ones value
- static ConstantVector *getAllOnesValue(const VectorType *Ty);
/// isNullValue - Return true if this is the value that would be returned by
/// getNullValue. This always returns false because zero vectors are always
return getSelectTy(V1->getType(), C, V1, V2);
}
- /// getSizeOf constant expr - computes the size of a type in a target
- /// independent way (Note: the return type is an i64).
- ///
- static Constant *getSizeOf(const Type *Ty);
-
/// ConstantExpr::get - Return a binary or shift operator constant expression,
/// folding if possible.
///
static Constant *get(unsigned Opcode, Constant *C1, Constant *C2);
- /// @brief Return an ICmp, FCmp, VICmp, or VFCmp comparison operator constant
- /// expression.
+ /// @brief Return an ICmp or FCmp comparison operator constant expression.
static Constant *getCompare(unsigned short pred, Constant *C1, Constant *C2);
/// ConstantExpr::get* - Return some common constants without having to
/// specify the full Instruction::OPCODE identifier.
///
- static Constant *getNeg(Constant *C);
- static Constant *getNot(Constant *C);
- static Constant *getAdd(Constant *C1, Constant *C2);
- static Constant *getSub(Constant *C1, Constant *C2);
- static Constant *getMul(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); // unsigned rem
- static Constant *getSRem(Constant *C1, Constant *C2); // signed rem
- 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 *getICmp(unsigned short pred, Constant *LHS, Constant *RHS);
static Constant *getFCmp(unsigned short pred, Constant *LHS, Constant *RHS);
- static Constant *getVICmp(unsigned short pred, Constant *LHS, Constant *RHS);
- static Constant *getVFCmp(unsigned short pred, Constant *LHS, Constant *RHS);
- static Constant *getShl(Constant *C1, Constant *C2);
- static Constant *getLShr(Constant *C1, Constant *C2);
- static Constant *getAShr(Constant *C1, Constant *C2);
/// Getelementptr form. std::vector<Value*> is only accepted for convenience:
/// all elements must be Constant's.
static Constant *getInsertValue(Constant *Agg, Constant *Val,
const unsigned *IdxList, unsigned NumIdx);
- /// 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 *getZeroValueForNegationExpr(const Type *Ty);
-
/// isNullValue - Return true if this is the value that would be returned by
/// getNullValue.
virtual bool isNullValue() const { return false; }
return V->getValueID() == UndefValueVal;
}
};
-
-//===----------------------------------------------------------------------===//
-/// MDString - a single uniqued string.
-/// These are used to efficiently contain a byte sequence for metadata.
-///
-class MDString : public Constant {
- MDString(const MDString &); // DO NOT IMPLEMENT
- void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
- MDString(const char *begin, const char *end);
-
- const char *StrBegin, *StrEnd;
-protected:
- // allocate space for exactly zero operands
- void *operator new(size_t s) {
- return User::operator new(s, 0);
- }
-public:
- /// get() - Static factory methods - Return objects of the specified value.
- ///
- static MDString *get(const char *StrBegin, const char *StrEnd);
-
- /// size() - The length of this string.
- ///
- intptr_t size() const { return StrEnd - StrBegin; }
-
- /// begin() - Pointer to the first byte of the string.
- ///
- const char *begin() const { return StrBegin; }
-
- /// end() - Pointer to one byte past the end of the string.
- ///
- const char *end() const { return StrEnd; }
-
- /// getType() specialization - Type is always an empty struct.
- ///
- inline const Type *getType() const {
- return Type::EmptyStructTy;
- }
-
- /// isNullValue - Return true if this is the value that would be returned by
- /// getNullValue. This always returns false because getNullValue will never
- /// produce metadata.
- virtual bool isNullValue() const {
- return false;
- }
-
- virtual void destroyConstant();
-
- /// Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const MDString *) { return true; }
- static bool classof(const Value *V) {
- return V->getValueID() == MDStringVal;
- }
-};
-
} // End llvm namespace
#endif
projects / oota-llvm.git / blobdiff