3 files changed, 12 insertions, 0 deletions
diff --git a/clang/test/Modules/Inputs/cxx-templates-a.h b/clang/test/Modules/Inputs/cxx-templates-a.h
index aaafc1b1bdb..dbf12dacbae 100644
--- a/clang/test/Modules/Inputs/cxx-templates-a.h
+++ b/clang/test/Modules/Inputs/cxx-templates-a.h
@@ -22,3 +22,5 @@ template<typename T> void PerformDelayedLookup(T &t) {
 }
 
 template<typename T> void PerformDelayedLookupInDefaultArgument(T &t, int a = (FoundByADL(T()), 0)) {}
+
+template<typename T> struct RedeclaredAsFriend {};
diff --git a/clang/test/Modules/Inputs/cxx-templates-b.h b/clang/test/Modules/Inputs/cxx-templates-b.h
index 36d7d78c130..9bc76d5bbae 100644
--- a/clang/test/Modules/Inputs/cxx-templates-b.h
+++ b/clang/test/Modules/Inputs/cxx-templates-b.h
@@ -29,6 +29,12 @@ template<typename T> void UseDefinedInBImpl() {
 
 extern DefinedInBImpl &defined_in_b_impl;
 
+template<typename T>
+struct RedeclareTemplateAsFriend {
+  template<typename U>
+  friend struct RedeclaredAsFriend;
+};
+
 @import cxx_templates_a;
 template<typename T> void UseDefinedInBImplIndirectly(T &v) {
   PerformDelayedLookup(v);
diff --git a/clang/test/Modules/cxx-templates.cpp b/clang/test/Modules/cxx-templates.cpp
index 79052dd34bb..0949436b5d8 100644
--- a/clang/test/Modules/cxx-templates.cpp
+++ b/clang/test/Modules/cxx-templates.cpp
@@ -71,6 +71,10 @@ void g() {
   PerformDelayedLookup(defined_in_b_impl); // expected-note {{in instantiation of}}
 }
 
+RedeclaredAsFriend<int> raf1;
+RedeclareTemplateAsFriend<double> rtaf;
+RedeclaredAsFriend<double> raf2;
+
 @import cxx_templates_common;
 
 typedef SomeTemplate<int*> SomeTemplateIntPtr;