1 files changed, 46 insertions, 0 deletions
diff --git a/clang/test/CXX/temp/temp.decls/temp.variadic/ext-blocks.cpp b/clang/test/CXX/temp/temp.decls/temp.variadic/ext-blocks.cpp
new file mode 100644
index 0000000..6d9d8c5
--- /dev/null
+++ b/clang/test/CXX/temp/temp.decls/temp.variadic/ext-blocks.cpp
@@ -0,0 +1,46 @@
+// RUN: %clang_cc1 -std=c++11 -fblocks -fsyntax-only -verify %s
+
+// Tests the use of blocks with variadic templates.
+template<typename ...Args>
+int f0(Args ...args) {
+  return ^ {
+    return sizeof...(Args);
+  }() + ^ {
+    return sizeof...(args);
+  }();
+}
+
+template<typename ...Args>
+int f1(Args ...args) {
+  return ^ {
+    return f0(args...);
+  }();
+}
+
+template int f0(int, float, double);
+template int f1(const char*, int, float, double);
+
+template<typename ...Args>
+int f2(Args ...args) {
+  return ^(Args ...block_args) {
+    return f1(block_args...);
+  }(args + 0 ...);
+}
+
+template int f2(const char*, int, float, double);
+
+template<typename ...Args>
+int f3(Args ...args) {
+  return ^(Args *...block_args) {
+    return f1(block_args...);
+  }(&args...);
+}
+
+template int f3(const char*, int, float, double);
+
+template<typename ...Args>
+int PR9953(Args ...args) {
+  return ^(Args *...block_args) {
+    return f1(block_args); // expected-error{{expression contains unexpanded parameter pack 'block_args'}}
+  }(&args...);
+}