1 files changed, 36 insertions, 0 deletions
diff --git a/test/SemaTemplate/instantiation-depth-defarg.cpp b/test/SemaTemplate/instantiation-depth-defarg.cpp
new file mode 100644
index 0000000..6550987
--- /dev/null
+++ b/test/SemaTemplate/instantiation-depth-defarg.cpp
@@ -0,0 +1,36 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -ftemplate-depth 128 -ftemplate-backtrace-limit 4 %s
+
+template<int N> struct S {
+  typedef typename S<N-1>::type type;
+  static int f(int n = S<N-1>::f()); // \
+// expected-error{{recursive template instantiation exceeded maximum depth of 128}} \
+// expected-note 3 {{instantiation of default function argument}} \
+// expected-note {{skipping 125 contexts in backtrace}} \
+// expected-note {{use -ftemplate-depth=N to increase recursive template instantiation depth}}
+
+};
+template<> struct S<0> {
+  typedef int type;
+};
+
+// Incrementally instantiate up to S<2048>.
+template struct S<128>;
+template struct S<256>;
+template struct S<384>;
+template struct S<512>;
+template struct S<640>;
+template struct S<768>;
+template struct S<896>;
+template struct S<1024>;
+template struct S<1152>;
+template struct S<1280>;
+template struct S<1408>;
+template struct S<1536>;
+template struct S<1664>;
+template struct S<1792>;
+template struct S<1920>;
+template struct S<2048>;
+
+// Check that we actually bail out when we hit the instantiation depth limit for
+// the default arguments.
+void g() { S<2048>::f(); } // expected-note {{required here}}