2 files changed, 17 insertions, 0 deletions
diff --git a/clang/test/Modules/Inputs/PR21547/FirstHeader.h b/clang/test/Modules/Inputs/PR21547/FirstHeader.h
new file mode 100644
index 00000000000..a01c6075932
--- /dev/null
+++ b/clang/test/Modules/Inputs/PR21547/FirstHeader.h
@@ -0,0 +1,13 @@
+template<class Element> struct TMatrixT;
+typedef TMatrixT<double> TMatrixD;
+
+void f(const TMatrixD &m);
+
+template<class Element> struct TMatrixT {
+  template <class Element2> TMatrixT(const TMatrixT<Element2> &);
+  ~TMatrixT() {}
+  void Determinant () { f(*this); }
+};
+
+template struct TMatrixT<float>;
+template struct TMatrixT<double>;
diff --git a/clang/test/Modules/Inputs/PR21547/module.modulemap b/clang/test/Modules/Inputs/PR21547/module.modulemap
new file mode 100644
index 00000000000..8ca0643888b
--- /dev/null
+++ b/clang/test/Modules/Inputs/PR21547/module.modulemap
@@ -0,0 +1,4 @@
+module M {
+  header "FirstHeader.h"
+  export *
+}