From 05eac276776d51323d36d2d29c4d2f8482fc75c3 Mon Sep 17 00:00:00 2001
From: Erich Keane <erich.keane@intel.com>
Date: Thu, 21 Sep 2017 20:14:08 +0000
Subject: [PATCH] Add testcase I forgot to add in R313907.

llvm-svn: 313909
---
 .../SemaCXX/warn-sign-conversion-cpp11.cpp    | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 clang/test/SemaCXX/warn-sign-conversion-cpp11.cpp

diff --git a/clang/test/SemaCXX/warn-sign-conversion-cpp11.cpp b/clang/test/SemaCXX/warn-sign-conversion-cpp11.cpp
new file mode 100644
index 000000000000..e18b7f564543
--- /dev/null
+++ b/clang/test/SemaCXX/warn-sign-conversion-cpp11.cpp
@@ -0,0 +1,21 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -Wsign-conversion -std=c++11 %s
+
+unsigned int test() {
+  short foo;
+  return foo; // expected-warning {{implicit conversion changes signedness}}
+
+}
+
+unsigned int test3() {
+  // For a non-defined enum, use the underlying type.
+  enum u8 : signed char;
+  u8 foo{static_cast<u8>(0)};
+  return foo; // expected-warning {{implicit conversion changes signedness}}
+
+}
+unsigned int test2() {
+  // For a non-defined enum, use the underlying type.
+  enum u8 : unsigned char;
+  u8 foo{static_cast<u8>(0)};
+  return foo;
+}