Re-apply "[libcxx] implement <simd> ABI for Clang/GCC vector extension, constructors, copy_from and copy_to."
...with proper guarding #ifdefs for unsupported C++11.
llvm-svn: 338318
diff --git a/libcxx/test/std/experimental/simd/simd.cons/default.pass.cpp b/libcxx/test/std/experimental/simd/simd.cons/default.pass.cpp
new file mode 100644
index 0000000..0f12ece
--- /dev/null
+++ b/libcxx/test/std/experimental/simd/simd.cons/default.pass.cpp
@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <experimental/simd>
+//
+// [simd.class]
+// simd() = default;
+
+#include <cstdint>
+#include <experimental/simd>
+
+namespace ex = std::experimental::parallelism_v2;
+
+int main() {
+ static_assert(ex::native_simd<int32_t>().size() > 0, "");
+ static_assert(ex::fixed_size_simd<int32_t, 4>().size() == 4, "");
+ static_assert(ex::fixed_size_simd<int32_t, 5>().size() == 5, "");
+ static_assert(ex::fixed_size_simd<int32_t, 1>().size() == 1, "");
+ static_assert(ex::fixed_size_simd<char, 32>().size() == 32, "");
+}