diff options
| -rw-r--r-- | include/llvm/GlobalValue.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/include/llvm/GlobalValue.h b/include/llvm/GlobalValue.h index d97c3677a4..bba6ff1111 100644 --- a/include/llvm/GlobalValue.h +++ b/include/llvm/GlobalValue.h @@ -42,7 +42,9 @@ protected: LinkageTypes Linkage; // The linkage of this global Module *Parent; public: - virtual ~GlobalValue(); + ~GlobalValue() { + removeDeadConstantUsers(); // remove any dead constants using this. + } /// If the usage is empty (except transitively dead constants), then this /// global value can can be safely deleted since the destructor will @@ -85,10 +87,10 @@ public: /// that want to check to see if a global is unused, but don't want to deal /// with potentially dead constants hanging off of the globals. /// - /// This function returns true if the global value is now dead. If all - /// users of this global are not dead, this method may return false and - /// leave some of them around. - bool removeDeadConstantUsers(); + /// This method tries to make the global dead. If it detects a user that + /// would prevent it from becoming completely dead, it gives up early, + /// potentially leaving some dead constant users around. + void removeDeadConstantUsers(); // Methods for support type inquiry through isa, cast, and dyn_cast: static inline bool classof(const GlobalValue *T) { return true; } |