-
-namespace {
- /// DummyInst - An instance of this class is used to mark the end of the
- /// instruction list. This is not a real instruction.
- struct VISIBILITY_HIDDEN DummyInst : public Instruction {
- // allocate space for exactly zero operands
- void *operator new(size_t s) {
- return User::operator new(s, 0);
- }
- DummyInst() : Instruction(Type::VoidTy, OtherOpsEnd, 0, 0) {
- // This should not be garbage monitored.
- LeakDetector::removeGarbageObject(this);
- }
-
- Instruction *clone() const {
- assert(0 && "Cannot clone EOL");abort();
- return 0;
- }
- const char *getOpcodeName() const { return "*end-of-list-inst*"; }
-
- // Methods for support type inquiry through isa, cast, and dyn_cast...
- static inline bool classof(const DummyInst *) { return true; }
- static inline bool classof(const Instruction *I) {
- return I->getOpcode() == OtherOpsEnd;
- }
- static inline bool classof(const Value *V) {
- return isa<Instruction>(V) && classof(cast<Instruction>(V));
- }
- };
-}
-
-Instruction *ilist_traits<Instruction>::createSentinel() {
- return new DummyInst();
-}
-iplist<Instruction> &ilist_traits<Instruction>::getList(BasicBlock *BB) {
- return BB->getInstList();