1 files changed, 19 insertions, 0 deletions
diff --git a/test/CXX/conv/conv.prom/p5.cpp b/test/CXX/conv/conv.prom/p5.cpp
new file mode 100644
index 000000000000..0c72ebce4aa9
--- /dev/null
+++ b/test/CXX/conv/conv.prom/p5.cpp
@@ -0,0 +1,19 @@
+// RUN: %clang_cc1 -verify %s
+// expected-no-diagnostics
+
+// A prvalue for an integral bit-field can be converted to a prvalue of type
+// int if int can represent all the values of the bit-field
+struct X { long long e : 1; };
+static_assert(sizeof(+X().e) == sizeof(int), "");
+static_assert(sizeof(X().e + 1) == sizeof(int), "");
+static_assert(sizeof(true ? X().e : 0) == sizeof(int), "");
+
+enum E : long long { a = __LONG_LONG_MAX__ };
+static_assert(sizeof(E{}) == sizeof(long long), "");
+
+// If the bit-field has an enumerated type, it is treated as any other value of
+// that [enumerated] type for promotion purposes.
+struct Y { E e : 1; };
+static_assert(sizeof(+Y().e) == sizeof(long long), "");
+static_assert(sizeof(Y().e + 1) == sizeof(long long), "");
+static_assert(sizeof(true ? Y().e : 0) == sizeof(long long), "");