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//===-- llvm/ConstPoolVals.h - Constant Value nodes --------------*- C++ -*--=//
//
// This file contains the declarations for the ConstPoolVal class and all of
// its subclasses, which represent the different type of constant pool values
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CONSTPOOLVALS_H
#define LLVM_CONSTPOOLVALS_H
#include "llvm/User.h"
#include "llvm/SymTabValue.h"
#include "llvm/Tools/DataTypes.h"
#include <vector>
class ArrayType;
class StructType;
//===----------------------------------------------------------------------===//
// ConstPoolVal Class
//===----------------------------------------------------------------------===//
class ConstPoolVal;
typedef UseTy<ConstPoolVal> ConstPoolUse;
class ConstPoolVal : public User {
SymTabValue *Parent;
friend class ValueHolder<ConstPoolVal, SymTabValue>;
inline void setParent(SymTabValue *parent) {
Parent = parent;
}
public:
inline ConstPoolVal(const Type *Ty, const string &Name = "")
: User(Ty, Value::ConstantVal, Name) { Parent = 0; }
// Specialize setName to handle symbol table majik...
virtual void setName(const string &name);
// Static constructor to create a '0' constant of arbitrary type...
static ConstPoolVal *getNullConstant(const Type *Ty);
// clone() - Create a copy of 'this' value that is identical in all ways
// except the following:
// * The value has no parent
// * The value has no name
//
virtual ConstPoolVal *clone() const = 0;
virtual string getStrValue() const = 0;
virtual bool equals(const ConstPoolVal *V) const = 0;
inline const SymTabValue *getParent() const { return Parent; }
inline SymTabValue *getParent() { return Parent; }
// if i > the number of operands, then getOperand() returns 0, and setOperand
// returns false. setOperand() may also return false if the operand is of
// the wrong type.
//
// Note that some subclasses may change this default no argument behavior
//
virtual Value *getOperand(unsigned i) { return 0; }
virtual const Value *getOperand(unsigned i) const { return 0; }
virtual bool setOperand(unsigned i, Value *Val) { return false; }
virtual void dropAllReferences() {}
};
//===----------------------------------------------------------------------===//
// Classes to represent constant pool variable defs
//===----------------------------------------------------------------------===//
//===---------------------------------------------------------------------------
// ConstPoolBool - Boolean Values
//
class ConstPoolBool : public ConstPoolVal {
bool Val;
ConstPoolBool(const ConstPoolBool &CP);
public:
ConstPoolBool(bool V, const string &Name = "");
virtual string getStrValue() const;
virtual bool equals(const ConstPoolVal *V) const;
virtual ConstPoolVal *clone() const { return new ConstPoolBool(*this); }
inline bool getValue() const { return Val; }
// setValue - Be careful... if there is more than one 'use' of this node, then
// they will ALL see the value that you set...
//
inline void setValue(bool v) { Val = v; }
};
//===---------------------------------------------------------------------------
// ConstPoolSInt - Signed Integer Values [sbyte, short, int, long]
//
class ConstPoolSInt : public ConstPoolVal {
int64_t Val;
ConstPoolSInt(const ConstPoolSInt &CP);
public:
ConstPoolSInt(const Type *Ty, int64_t V, const string &Name = "");
virtual ConstPoolVal *clone() const { return new ConstPoolSInt(*this); }
virtual string getStrValue() const;
virtual bool equals(const ConstPoolVal *V) const;
static bool isValueValidForType(const Type *Ty, int64_t V);
inline int64_t getValue() const { return Val; }
};
//===---------------------------------------------------------------------------
// ConstPoolUInt - Unsigned Integer Values [ubyte, ushort, uint, ulong]
//
class ConstPoolUInt : public ConstPoolVal {
uint64_t Val;
ConstPoolUInt(const ConstPoolUInt &CP);
public:
ConstPoolUInt(const Type *Ty, uint64_t V, const string &Name = "");
virtual ConstPoolVal *clone() const { return new ConstPoolUInt(*this); }
virtual string getStrValue() const;
virtual bool equals(const ConstPoolVal *V) const;
static bool isValueValidForType(const Type *Ty, uint64_t V);
inline uint64_t getValue() const { return Val; }
};
//===---------------------------------------------------------------------------
// ConstPoolFP - Floating Point Values [float, double]
//
class ConstPoolFP : public ConstPoolVal {
double Val;
ConstPoolFP(const ConstPoolFP &CP);
public:
ConstPoolFP(const Type *Ty, double V, const string &Name = "");
virtual ConstPoolVal *clone() const { return new ConstPoolFP(*this); }
virtual string getStrValue() const;
virtual bool equals(const ConstPoolVal *V) const;
static bool isValueValidForType(const Type *Ty, double V);
inline double getValue() const { return Val; }
};
//===---------------------------------------------------------------------------
// ConstPoolType - Type Declarations
//
class ConstPoolType : public ConstPoolVal {
const Type *Val;
ConstPoolType(const ConstPoolType &CPT);
public:
ConstPoolType(const Type *V, const string &Name = "");
virtual ConstPoolVal *clone() const { return new ConstPoolType(*this); }
virtual string getStrValue() const;
virtual bool equals(const ConstPoolVal *V) const;
inline const Type *getValue() const { return Val; }
};
//===---------------------------------------------------------------------------
// ConstPoolArray - Constant Array Declarations
//
class ConstPoolArray : public ConstPoolVal {
vector<ConstPoolUse> Val;
ConstPoolArray(const ConstPoolArray &CPT);
public:
ConstPoolArray(const ArrayType *T, vector<ConstPoolVal*> &V,
const string &Name = "");
inline ~ConstPoolArray() { dropAllReferences(); }
virtual ConstPoolVal *clone() const { return new ConstPoolArray(*this); }
virtual string getStrValue() const;
virtual bool equals(const ConstPoolVal *V) const;
inline const vector<ConstPoolUse> &getValues() const { return Val; }
// Implement User stuff...
//
virtual Value *getOperand(unsigned i) {
return (i < Val.size()) ? Val[i] : 0;
}
virtual const Value *getOperand(unsigned i) const {
return (i < Val.size()) ? Val[i] : 0;
}
// setOperand fails! You can't change a constant!
virtual bool setOperand(unsigned i, Value *Val) { return false; }
virtual void dropAllReferences() { Val.clear(); }
};
//===---------------------------------------------------------------------------
// ConstPoolStruct - Constant Struct Declarations
//
class ConstPoolStruct : public ConstPoolVal {
vector<ConstPoolUse> Val;
ConstPoolStruct(const ConstPoolStruct &CPT);
public:
ConstPoolStruct(const StructType *T, vector<ConstPoolVal*> &V,
const string &Name = "");
inline ~ConstPoolStruct() { dropAllReferences(); }
virtual ConstPoolVal *clone() const { return new ConstPoolStruct(*this); }
virtual string getStrValue() const;
virtual bool equals(const ConstPoolVal *V) const;
inline const vector<ConstPoolUse> &getValues() const { return Val; }
// Implement User stuff...
//
virtual Value *getOperand(unsigned i) {
return (i < Val.size()) ? Val[i] : 0;
}
virtual const Value *getOperand(unsigned i) const {
return (i < Val.size()) ? Val[i] : 0;
}
// setOperand fails! You can't change a constant!
virtual bool setOperand(unsigned i, Value *Val) { return false; }
virtual void dropAllReferences() { Val.clear(); }
};
#endif
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