1 files changed, 19 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/instantiate-blocks.cpp b/clang/test/SemaCXX/instantiate-blocks.cpp
new file mode 100644
index 00000000000..a4001a75fa5
--- /dev/null
+++ b/clang/test/SemaCXX/instantiate-blocks.cpp
@@ -0,0 +1,19 @@
+// RUN: %clang_cc1 -fblocks -fsyntax-only -verify %s
+// rdar: // 6182276
+
+template <typename T, typename T1> void foo(T t, T1 r)
+{
+    T block_arg;
+    __block T1 byref_block_arg;
+
+    T1 (^block)(T)  =  ^ T1 (T arg) { 
+         byref_block_arg = arg;
+         block_arg = arg; 	// expected-error {{variable is not assignable (missing __block type specifier)}}
+         return block_arg+arg; };
+}
+
+int main(void)
+{
+    foo(100, 'a');	// expected-note {{in instantiation of function template specialization 'foo<int, char>' requested here}}
+}
+