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The ConstantPointer class is now gone.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10057 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-11-17 19:47:21 +00:00
parent cb7a1eba45
commit 48babfa60d
2 changed files with 23 additions and 49 deletions
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59
include/llvm/Constants.h
View File

@ -385,41 +385,14 @@ public:
};
//===---------------------------------------------------------------------------
/// ConstantPointer - Constant Pointer Declarations
///
/// The ConstantPointer class represents a null pointer of a specific type. For
/// a more specific/useful instance, a subclass of ConstantPointer should be
/// used.
///
class ConstantPointer : public Constant {
ConstantPointer(const ConstantPointer &); // DO NOT IMPLEMENT
protected:
inline ConstantPointer(const PointerType *T)
: Constant(reinterpret_cast<const Type*>(T)) { }
public:
inline const PointerType *getType() const {
return reinterpret_cast<const PointerType*>(Value::getType());
}
/// isNullValue - Return true if this is the value that would be returned by
/// getNullValue.
virtual bool isNullValue() const { return false; }
/// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const ConstantPointer *) { return true; }
static bool classof(const Constant *CPV); // defined in Constants.cpp
static inline bool classof(const Value *V) {
return isa<Constant>(V) && classof(cast<Constant>(V));
}
};
/// ConstantPointerNull - a constant pointer value that points to null
///
class ConstantPointerNull : public ConstantPointer {
class ConstantPointerNull : public Constant {
friend struct ConstantCreator<ConstantPointerNull, PointerType, char>;
ConstantPointerNull(const ConstantPointerNull &); // DO NOT IMPLEMENT
protected:
ConstantPointerNull(const PointerType *T) : ConstantPointer(T) {}
ConstantPointerNull(const PointerType *T)
: Constant(reinterpret_cast<const Type*>(T)) {}
public:
@ -434,22 +407,18 @@ public:
/// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const ConstantPointerNull *) { return true; }
static inline bool classof(const ConstantPointer *P) {
return (P->getNumOperands() == 0 && P->isNullValue());
}
static inline bool classof(const Constant *CPV) {
return isa<ConstantPointer>(CPV) && classof(cast<ConstantPointer>(CPV));
}
static bool classof(const Constant *CPV);
static inline bool classof(const Value *V) {
return isa<ConstantPointer>(V) && classof(cast<ConstantPointer>(V));
return isa<Constant>(V) && classof(cast<Constant>(V));
}
};
//===---------------------------------------------------------------------------
/// ConstantPointerRef - a constant pointer value that is initialized to
/// point to a global value, which lies at a constant, fixed address.
///
class ConstantPointerRef : public ConstantPointer {
class ConstantPointerRef : public Constant {
friend class Module; // Modules maintain these references
ConstantPointerRef(const ConstantPointerRef &); // DNI!
@ -467,21 +436,19 @@ public:
return cast<GlobalValue>(Operands[0].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,
bool DisableChecking = false);
/// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const ConstantPointerRef *) { return true; }
static inline bool classof(const ConstantPointer *CPV) {
// check for a single operand (the target value)
return (CPV->getNumOperands() == 1);
}
static inline bool classof(const Constant *CPV) {
return isa<ConstantPointer>(CPV) && classof(cast<ConstantPointer>(CPV));
}
static bool classof(const Constant *CPV);
static inline bool classof(const Value *V) {
return isa<ConstantPointer>(V) && classof(cast<ConstantPointer>(V));
return isa<Constant>(V) && classof(cast<Constant>(V));
}
};

13
lib/VMCore/Constants.cpp
View File

@ -278,7 +278,7 @@ ConstantStruct::ConstantStruct(const StructType *T,
}
ConstantPointerRef::ConstantPointerRef(GlobalValue *GV)
: ConstantPointer(GV->getType()) {
: Constant(GV->getType()) {
Operands.push_back(Use(GV, this));
}
@ -337,8 +337,15 @@ bool ConstantArray::classof(const Constant *CPV) {
bool ConstantStruct::classof(const Constant *CPV) {
return isa<StructType>(CPV->getType()) && !isa<ConstantExpr>(CPV);
}
bool ConstantPointer::classof(const Constant *CPV) {
return (isa<PointerType>(CPV->getType()) && !isa<ConstantExpr>(CPV));
bool ConstantPointerNull::classof(const Constant *CPV) {
return isa<PointerType>(CPV->getType()) && !isa<ConstantExpr>(CPV) &&
CPV->getNumOperands() == 0;
}
bool ConstantPointerRef::classof(const Constant *CPV) {
return isa<PointerType>(CPV->getType()) && !isa<ConstantExpr>(CPV) &&
CPV->getNumOperands() == 1;
}