From 809500fc2c13c8173a16b052304d983864e4a1e1 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Mon, 8 Apr 2013 18:45:10 +0000
Subject: Vendor import of clang trunk r178860:
 http://llvm.org/svn/llvm-project/cfe/trunk@178860

---
 test/SemaTemplate/alignas.cpp | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 test/SemaTemplate/alignas.cpp

(limited to 'test/SemaTemplate/alignas.cpp')

diff --git a/test/SemaTemplate/alignas.cpp b/test/SemaTemplate/alignas.cpp
new file mode 100644
index 0000000000000..8a1f96e5bdeca
--- /dev/null
+++ b/test/SemaTemplate/alignas.cpp
@@ -0,0 +1,23 @@
+// RUN: %clang_cc1 -std=c++11 -verify %s
+
+// expected-no-diagnostics
+using size_t = decltype(sizeof(0));
+
+template<typename T, typename U>
+constexpr T max(T t, U u) { return t > u ? t : u; }
+
+template<typename T, typename ...Ts>
+constexpr auto max(T t, Ts ...ts) -> decltype(max(t, max(ts...))) {
+  return max(t, max(ts...));
+}
+
+template<typename...T> struct my_union {
+  alignas(T...) char buffer[max(sizeof(T)...)];
+};
+
+struct alignas(8) A { char c; };
+struct alignas(4) B { short s; };
+struct C { char a[16]; };
+
+static_assert(sizeof(my_union<A, B, C>) == 16, "");
+static_assert(alignof(my_union<A, B, C>) == 8, "");
-- 
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