1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/cpp0x/alignas3.C b/gcc/testsuite/g++.dg/cpp0x/alignas3.C
new file mode 100644
index 00000000000..aa62e5afb2d
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/alignas3.C
@@ -0,0 +1,20 @@
+// PR c++/50800
+// { dg-do compile { target c++11 } }
+
+template <typename> struct A;
+template <typename _Up> struct A<_Up *> { typedef _Up type; };
+template <typename T> struct B { typedef typename A<T>::type type; };
+template <typename> struct C;
+template <typename From> struct C<const From> {
+  typedef typename B<From>::type SimpleType;
+};
+template <class> struct D { typedef int ret_type; };
+template <class From> struct F {
+  typedef typename D<typename C<From>::SimpleType>::ret_type ret_type;
+};
+template <class, class Y> typename F<Y>::ret_type cast(Y &);
+class CompoundStmt;
+class alignas(8) Stmt {
+  Stmt *Children[1];
+  CompoundStmt *getBlock() const { cast<CompoundStmt>(Children[0]); }
+};