Allocator: Remove ReferenceAdder hack.

This was a workaround for compilers that had issues with reference
collapsing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206612 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 4 insertions, 14 deletions

diff --git a/include/llvm/ADT/ScopedHashTable.h b/include/llvm/ADT/ScopedHashTable.h
index ae16c9c137..3cc7738df8 100644
--- a/include/llvm/ADT/ScopedHashTable.h
+++ b/include/llvm/ADT/ScopedHashTable.h
@@ -167,10 +167,8 @@ public:
   
 
   /// Access to the allocator.
-  typedef typename ReferenceAdder<AllocatorTy>::result AllocatorRefTy;
-  typedef typename ReferenceAdder<const AllocatorTy>::result AllocatorCRefTy;
-  AllocatorRefTy getAllocator() { return Allocator; }
-  AllocatorCRefTy getAllocator() const { return Allocator; }
+  AllocatorTy &getAllocator() { return Allocator; }
+  const AllocatorTy &getAllocator() const { return Allocator; }
 
   bool count(const K &Key) const {
     return TopLevelMap.count(Key);
diff --git a/include/llvm/ADT/StringMap.h b/include/llvm/ADT/StringMap.h
index f7f940944c..a966977ea5 100644
--- a/include/llvm/ADT/StringMap.h
+++ b/include/llvm/ADT/StringMap.h
@@ -246,10 +246,8 @@ public:
     clear();
   }
 
-  typedef typename ReferenceAdder<AllocatorTy>::result AllocatorRefTy;
-  typedef typename ReferenceAdder<const AllocatorTy>::result AllocatorCRefTy;
-  AllocatorRefTy getAllocator() { return Allocator; }
-  AllocatorCRefTy getAllocator() const { return Allocator; }
+  AllocatorTy &getAllocator() { return Allocator; }
+  const AllocatorTy &getAllocator() const { return Allocator; }
 
   typedef const char* key_type;
   typedef ValueTy mapped_type;
diff --git a/include/llvm/Support/Allocator.h b/include/llvm/Support/Allocator.h
index 774363fb49..7a7e4c0a13 100644
--- a/include/llvm/Support/Allocator.h
+++ b/include/llvm/Support/Allocator.h
@@ -32,12 +32,6 @@
 #include <cstdlib>
 
 namespace llvm {
-template <typename T> struct ReferenceAdder {
-  typedef T &result;
-};
-template <typename T> struct ReferenceAdder<T &> {
-  typedef T result;
-};
 
 /// \brief CRTP base class providing obvious overloads for the core \c
 /// Allocate() methods of LLVM-style allocators.