//
//===----------------------------------------------------------------------===//
//
-// This file declares the Value class.
+// This file declares the Value class.
//
//===----------------------------------------------------------------------===//
// Value Class
//===----------------------------------------------------------------------===//
-/// This is a very important LLVM class. It is the base class of all values
+/// This is a very important LLVM class. It is the base class of all values
/// computed by a program that may be used as operands to other values. Value is
/// the super class of other important classes such as Instruction and Function.
/// All Values have a Type. Type is not a subclass of Value. Some values can
bool hasName() const { return Name != nullptr && SubclassID != MDStringVal; }
ValueName *getValueName() const { return Name; }
void setValueName(ValueName *VN) { Name = VN; }
-
+
/// getName() - Return a constant reference to the value's name. This is cheap
/// and guaranteed to return the same reference as long as the value is not
/// modified.
/// \param Name The new name; or "" if the value's name should be removed.
void setName(const Twine &Name);
-
+
/// takeName - transfer the name from V to this value, setting V's name to
- /// empty. It is an error to call V->takeName(V).
+ /// empty. It is an error to call V->takeName(V).
void takeName(Value *V);
/// replaceAllUsesWith - Go through the uses list for this definition and make
void addUse(Use &U) { U.addToList(&UseList); }
/// An enumeration for keeping track of the concrete subclass of Value that
- /// is actually instantiated. Values of this enumeration are kept in the
+ /// is actually instantiated. Values of this enumeration are kept in the
/// Value classes SubclassID field. They are used for concrete type
/// identification.
enum ValueTy {
/// isDereferenceablePointer - Test if this value is always a pointer to
/// allocated and suitably aligned memory for a simple load or store.
bool isDereferenceablePointer() const;
-
+
/// DoPHITranslation - If this value is a PHI node with CurBB as its parent,
/// return the value in the PHI node corresponding to PredBB. If not, return
/// ourself. This is useful if you want to know the value something has in a
const BasicBlock *PredBB) const{
return const_cast<Value*>(this)->DoPHITranslation(CurBB, PredBB);
}
-
+
/// MaximumAlignment - This is the greatest alignment value supported by
/// load, store, and alloca instructions, and global values.
static const unsigned MaximumAlignment = 1u << 29;
-
+
/// mutateType - Mutate the type of this Value to be of the specified type.
/// Note that this is an extremely dangerous operation which can create
/// completely invalid IR very easily. It is strongly recommended that you
void mutateType(Type *Ty) {
VTy = Ty;
}
-
+
protected:
unsigned short getSubclassDataFromValue() const { return SubclassData; }
void setValueSubclassData(unsigned short D) { SubclassData = D; }
V.print(OS);
return OS;
}
-
+
void Use::set(Value *V) {
if (Val) removeFromList();
Val = V;
}
};
-template <> struct isa_impl<InlineAsm, Value> {
+template <> struct isa_impl<InlineAsm, Value> {
static inline bool doit(const Value &Val) {
return Val.getValueID() == Value::InlineAsmVal;
}
};
-template <> struct isa_impl<Instruction, Value> {
+template <> struct isa_impl<Instruction, Value> {
static inline bool doit(const Value &Val) {
return Val.getValueID() >= Value::InstructionVal;
}
};
-template <> struct isa_impl<BasicBlock, Value> {
+template <> struct isa_impl<BasicBlock, Value> {
static inline bool doit(const Value &Val) {
return Val.getValueID() == Value::BasicBlockVal;
}
};
-template <> struct isa_impl<Function, Value> {
+template <> struct isa_impl<Function, Value> {
static inline bool doit(const Value &Val) {
return Val.getValueID() == Value::FunctionVal;
}
};
-template <> struct isa_impl<GlobalVariable, Value> {
+template <> struct isa_impl<GlobalVariable, Value> {
static inline bool doit(const Value &Val) {
return Val.getValueID() == Value::GlobalVariableVal;
}
};
-template <> struct isa_impl<GlobalAlias, Value> {
+template <> struct isa_impl<GlobalAlias, Value> {
static inline bool doit(const Value &Val) {
return Val.getValueID() == Value::GlobalAliasVal;
}
};
-template <> struct isa_impl<GlobalValue, Value> {
+template <> struct isa_impl<GlobalValue, Value> {
static inline bool doit(const Value &Val) {
return isa<GlobalVariable>(Val) || isa<Function>(Val) ||
isa<GlobalAlias>(Val);
}
};
-template <> struct isa_impl<MDNode, Value> {
+template <> struct isa_impl<MDNode, Value> {
static inline bool doit(const Value &Val) {
return Val.getValueID() == Value::MDNodeVal;
}
};
-
+
// Value* is only 4-byte aligned.
template<>
class PointerLikeTypeTraits<Value*> {
DEFINE_ISA_CONVERSION_FUNCTIONS(Value, LLVMValueRef)
/* Specialized opaque value conversions.
- */
+ */
inline Value **unwrap(LLVMValueRef *Vals) {
return reinterpret_cast<Value**>(Vals);
}