1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/template/instantiate11.C b/gcc/testsuite/g++.dg/template/instantiate11.C
new file mode 100644
index 000000000..3598d5890
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/instantiate11.C
@@ -0,0 +1,25 @@
+// PR c++/42608
+// { dg-do compile }
+
+template <class U, class V>
+struct A;
+
+template <class V>
+struct A<int, V>
+{
+  void f ();
+};
+
+template struct A<int, int>;
+
+int
+main ()
+{
+  A<int, int> a;
+  a.f ();
+  return 0;
+}
+
+// Make sure we get undefined reference error if
+// A<int, int>::f () isn't instantiated elsewhere.
+// { dg-final { scan-assembler-not "weak\[\n\t\]*_ZN1AIiiE1fEv" } }