diff options
Diffstat (limited to 'include/llvm/Support/ValueHandle.h')
| -rw-r--r-- | include/llvm/Support/ValueHandle.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/llvm/Support/ValueHandle.h b/include/llvm/Support/ValueHandle.h index b49341c3ff..bc02ba31b9 100644 --- a/include/llvm/Support/ValueHandle.h +++ b/include/llvm/Support/ValueHandle.h @@ -339,6 +339,7 @@ public: /// rearrange itself when the pointer changes). Unlike ValueHandleBase, this /// class has a vtable and a virtual destructor. class CallbackVH : public ValueHandleBase { + virtual void anchor(); protected: CallbackVH(const CallbackVH &RHS) : ValueHandleBase(Callback, RHS) {} @@ -365,13 +366,13 @@ public: /// /// All implementations must remove the reference from this object to the /// Value that's being destroyed. - virtual void deleted(); + virtual void deleted() { setValPtr(NULL); } /// Called when this->getValPtr()->replaceAllUsesWith(new_value) is called, /// _before_ any of the uses have actually been replaced. If WeakVH were /// implemented as a CallbackVH, it would use this method to call /// setValPtr(new_value). AssertingVH would do nothing in this method. - virtual void allUsesReplacedWith(Value *); + virtual void allUsesReplacedWith(Value *) {} }; } // End llvm namespace |