1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/ext/attrib26.C b/gcc/testsuite/g++.dg/ext/attrib26.C
new file mode 100644
index 000000000..dedf43a02
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/attrib26.C
@@ -0,0 +1,14 @@
+// PR c++/28659
+// The attribute was causing us to get confused in merge_types when
+// combining the template type with an uninstantiated version.
+
+template<class T>
+struct __attribute__((aligned(1))) A
+{
+  A& operator=(const A &t);
+};
+
+template<class T>
+A<T>& A<T>::operator=(const A<T> &t)
+{
+}