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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