3 files changed, 66 insertions, 0 deletions
diff --git a/clang/test/CXX/temp/temp.decls/temp.alias/p1.cpp b/clang/test/CXX/temp/temp.decls/temp.alias/p1.cpp
new file mode 100644
index 0000000..966e3c1
--- /dev/null
+++ b/clang/test/CXX/temp/temp.decls/temp.alias/p1.cpp
@@ -0,0 +1,8 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+
+template<typename T> using U = T;
+
+// The name of the alias template is a template-name.
+U<char> x;
+void f(U<int>);
+typedef U<U<U<U<int>>>> I;
diff --git a/clang/test/CXX/temp/temp.decls/temp.alias/p2.cpp b/clang/test/CXX/temp/temp.decls/temp.alias/p2.cpp
new file mode 100644
index 0000000..a5b39fe
--- /dev/null
+++ b/clang/test/CXX/temp/temp.decls/temp.alias/p2.cpp
@@ -0,0 +1,45 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+
+template<typename T> using U = T;
+
+using I = U<U<U<U<int>>>>;
+using I = int;
+
+template<typename A, typename B> using Fst = A;
+template<typename A, typename B> using Snd = B;
+
+using I = Fst<Snd<char,int>,double>;
+
+namespace StdExample {
+  // Prerequisites for example.
+  template<class T, class A> struct vector { /* ... */ };
+
+
+  template<class T> struct Alloc {};
+  template<class T> using Vec = vector<T, Alloc<T>>;
+  Vec<int> v;
+
+  template<class T>
+    void process(Vec<T>& v) // expected-note {{previous definition is here}}
+    { /* ... */ }
+
+  template<class T>
+    void process(vector<T, Alloc<T>>& w) // expected-error {{redefinition of 'process'}}
+    { /* ... */ }
+
+  template<template<class> class TT>
+    void f(TT<int>); // expected-note {{candidate template ignored}}
+
+  template<template<class,class> class TT>
+    void g(TT<int, Alloc<int>>);
+
+  int h() {
+    f(v); // expected-error {{no matching function for call to 'f'}}
+    g(v); // OK: TT = vector
+  }
+
+
+  // v's type is same as vector<int, Alloc<int>>.
+  using VTest = vector<int, Alloc<int>>;
+  using VTest = decltype(v);
+}
diff --git a/clang/test/CXX/temp/temp.decls/temp.alias/p3.cpp b/clang/test/CXX/temp/temp.decls/temp.alias/p3.cpp
new file mode 100644
index 0000000..afd9b4b
--- /dev/null
+++ b/clang/test/CXX/temp/temp.decls/temp.alias/p3.cpp
@@ -0,0 +1,13 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+
+// The example given in the standard (this is rejected for other reasons anyway).
+template<class T> struct A;
+template<class T> using B = typename A<T>::U; // expected-error {{no type named 'U' in 'A<T>'}}
+template<class T> struct A {
+  typedef B<T> U; // expected-note {{in instantiation of template type alias 'B' requested here}}
+};
+B<short> b;
+
+template<typename T> using U = int;
+// FIXME: This is illegal, but probably only because CWG1044 missed this paragraph.
+template<typename T> using U = U<T>;