- User(const Type *Ty, unsigned vty, const std::string &name = "")
- : Value(Ty, vty, name) {}
-
- inline Value *getOperand(unsigned i) {
- assert(i < Operands.size() && "getOperand() out of range!");
- return Operands[i];
+ ~User() {
+ if ((intptr_t(OperandList) & 1) == 0)
+ Use::zap(OperandList, OperandList + NumOperands);
+ }
+ /// operator delete - free memory allocated for User and Use objects
+ void operator delete(void *Usr);
+ /// placement delete - required by std, but never called.
+ void operator delete(void*, unsigned) {
+ assert(0 && "Constructor throws?");
+ }
+ /// placement delete - required by std, but never called.
+ void operator delete(void*, unsigned, bool) {
+ assert(0 && "Constructor throws?");
+ }
+protected:
+ template <int Idx, typename U> static Use &OpFrom(const U *that) {
+ return Idx < 0
+ ? OperandTraits<U>::op_end(const_cast<U*>(that))[Idx]
+ : OperandTraits<U>::op_begin(const_cast<U*>(that))[Idx];
+ }
+ template <int Idx> Use &Op() {
+ return OpFrom<Idx>(this);
+ }
+ template <int Idx> const Use &Op() const {
+ return OpFrom<Idx>(this);
+ }
+public:
+ Value *getOperand(unsigned i) const {
+ assert(i < NumOperands && "getOperand() out of range!");
+ return OperandList[i];
+ }
+ void setOperand(unsigned i, Value *Val) {
+ assert(i < NumOperands && "setOperand() out of range!");
+ assert((!isa<Constant>((const Value*)this) ||
+ isa<GlobalValue>((const Value*)this)) &&
+ "Cannot mutate a constant with setOperand!");
+ OperandList[i] = Val;