[llvm] r371856 - [ADT] Remove a workaround for old versions of clang

[Benjamin Kramer via llvm-commits]

Author: d0k
Date: Fri Sep 13 06:47:49 2019
New Revision: 371856

URL: http://llvm.org/viewvc/llvm-project?rev=371856&view=rev
Log:
[ADT] Remove a workaround for old versions of clang

Modified:
    llvm/trunk/include/llvm/ADT/DenseMap.h

Modified: llvm/trunk/include/llvm/ADT/DenseMap.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/DenseMap.h?rev=371856&r1=371855&r2=371856&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ADT/DenseMap.h (original)
+++ llvm/trunk/include/llvm/ADT/DenseMap.h Fri Sep 13 06:47:49 2019
@@ -38,33 +38,7 @@ namespace detail {
 // implementation without requiring two members.
 template <typename KeyT, typename ValueT>
 struct DenseMapPair : public std::pair<KeyT, ValueT> {
-
-  // FIXME: Switch to inheriting constructors when we drop support for older
-  //        clang versions.
-  // NOTE: This default constructor is declared with '{}' rather than
-  //       '= default' to work around a separate bug in clang-3.8. This can
-  //       also go when we switch to inheriting constructors.
-  DenseMapPair() {}
-
-  DenseMapPair(const KeyT &Key, const ValueT &Value)
-      : std::pair<KeyT, ValueT>(Key, Value) {}
-
-  DenseMapPair(KeyT &&Key, ValueT &&Value)
-      : std::pair<KeyT, ValueT>(std::move(Key), std::move(Value)) {}
-
-  template <typename AltKeyT, typename AltValueT>
-  DenseMapPair(AltKeyT &&AltKey, AltValueT &&AltValue,
-               typename std::enable_if<
-                   std::is_convertible<AltKeyT, KeyT>::value &&
-                   std::is_convertible<AltValueT, ValueT>::value>::type * = 0)
-      : std::pair<KeyT, ValueT>(std::forward<AltKeyT>(AltKey),
-                                std::forward<AltValueT>(AltValue)) {}
-
-  template <typename AltPairT>
-  DenseMapPair(AltPairT &&AltPair,
-               typename std::enable_if<std::is_convertible<
-                   AltPairT, std::pair<KeyT, ValueT>>::value>::type * = nullptr)
-      : std::pair<KeyT, ValueT>(std::forward<AltPairT>(AltPair)) {}
+  using std::pair<KeyT, ValueT>::pair;
 
   KeyT &getFirst() { return std::pair<KeyT, ValueT>::first; }
   const KeyT &getFirst() const { return std::pair<KeyT, ValueT>::first; }