1 files changed, 56 insertions, 1 deletions
diff --git a/test/CodeGenCXX/mangle-lambdas.cpp b/test/CodeGenCXX/mangle-lambdas.cpp
index b2376648c2..de8360d730 100644
--- a/test/CodeGenCXX/mangle-lambdas.cpp
+++ b/test/CodeGenCXX/mangle-lambdas.cpp
@@ -14,9 +14,64 @@ inline void inline_func(int n) {
   // CHECK: call i32 @_ZZ11inline_funciENKUliE_clEi
   int l = [=] (int x) -> int { return x + i; }(n);
 
-  // CHECK: ret void
+  int inner(int i = []{ return 1; }());
+  // CHECK: call i32 @_ZZ11inline_funciENKUlvE2_clEv
+  // CHECK-NEXT: call i32 @_Z5inneri
+  inner();
+
+  // CHECK-NEXT: ret void
 }
 
 void call_inline_func() {
   inline_func(17);
 }
+
+struct S {
+  void f(int = []{return 1;}()
+             + []{return 2;}(),
+         int = []{return 3;}());
+  void g(int, int);
+};
+
+void S::g(int i = []{return 1;}(),
+          int j = []{return 2; }()) {}
+
+// CHECK: define void @_Z6test_S1S
+void test_S(S s) {
+  // CHECK: call i32 @_ZZN1S1fEiiEd0_NKUlvE_clEv
+  // CHECK-NEXT: call i32 @_ZZN1S1fEiiEd0_NKUlvE0_clEv
+  // CHECK-NEXT: add nsw i32
+  // CHECK-NEXT: call i32 @_ZZN1S1fEiiEd_NKUlvE_clEv
+  // CHECK-NEXT: call void @_ZN1S1fEii
+  s.f();
+
+  // NOTE: These manglings don't actually matter that much, because
+  // the lambdas in the default arguments of g() won't be seen by
+  // multiple translation units. We check them mainly to ensure that they don't 
+  // get the special mangling for lambdas in in-class default arguments.
+  // CHECK: call i32 @_ZNK1SUlvE_clEv
+  // CHECK-NEXT: call i32 @_ZNK1SUlvE0_clEv
+  // CHECK-NEXT: call void @_ZN1S1gEi
+  s.g();
+
+  // CHECK-NEXT: ret void
+}
+
+template<typename T>
+struct ST {
+  void f(T = []{return T() + 1;}()
+           + []{return T() + 2;}(),
+         T = []{return T(3);}());
+};
+
+// CHECK: define void @_Z7test_ST2STIdE
+void test_ST(ST<double> st) {
+  // CHECK: call double @_ZZN2ST1fET_S0_Ed0_NKUlvE_clEv
+  // CHECK-NEXT: call double @_ZZN2ST1fET_S0_Ed0_NKUlvE0_clEv
+  // CHECK-NEXT: fadd double
+  // CHECK-NEXT: call double @_ZZN2ST1fET_S0_Ed_NKUlvE_clEv
+  // CHECK-NEXT: call void @_ZN2STIdE1fEdd
+  st.f();
+
+  // CHECK-NEXT: ret void
+}