Teach Sema::FindInstantiatedDecl to find instantiated RecordDecls even

when we are not instantiating the corresponding "current
instantiation." This happens, e.g., when we are instantiating a
declaration reference that refers into the "current instantiation" but
occurs in a default function argument. The libstdc++ vector default
constructor now instantiates properly.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82069 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 0 deletions

diff --git a/test/SemaTemplate/default-expr-arguments.cpp b/test/SemaTemplate/default-expr-arguments.cpp
index 01d0e60887..74d87e9db9 100644
--- a/test/SemaTemplate/default-expr-arguments.cpp
+++ b/test/SemaTemplate/default-expr-arguments.cpp
@@ -68,3 +68,13 @@ void test_x0_not_default_constructible(X0<NotDefaultConstructible> xn) {
   xn.f(42);
   xn.f(); // expected-note{{in instantiation of default function argument}}
 }
+
+template<typename T>
+struct X1 {
+  typedef T value_type;
+  X1(const value_type& value = value_type());
+};
+
+void test_X1() {
+  X1<int> x1;
+}