[ADT] Delete unused llvm::pointer_union_detail::AssignableFrom

Noticed by Zhiwei Chen
2020-07-22 09:23:52 -07:00 · 2020-07-22 09:23:52 -07:00 · 25203e7e3e
parent 44a6bda19b
commit 25203e7e3e
1 changed files with 0 additions and 7 deletions
--- a/llvm/include/llvm/ADT/PointerUnion.h
+++ b/llvm/include/llvm/ADT/PointerUnion.h
@ -93,13 +93,6 @@ namespace pointer_union_detail {
    static constexpr int NumLowBitsAvailable = lowBitsAvailable<PTs...>();
  };

-  /// Implement assignment in terms of construction.
-  template <typename Derived, typename T> struct AssignableFrom {
-    Derived &operator=(T t) {
-      return static_cast<Derived &>(*this) = Derived(t);
-    }
-  };
-
  template <typename Derived, typename ValTy, int I, typename ...Types>
  class PointerUnionMembers;