1 files changed, 27 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/pr64037.C b/gcc-4.9/gcc/testsuite/g++.dg/pr64037.C
new file mode 100644
index 000000000..e5cd0e2ee
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/pr64037.C
@@ -0,0 +1,27 @@
+// { dg-do run { target i?86-*-* x86_64-*-* } }
+// { dg-options "-std=c++11 -Os" }
+
+enum class X : unsigned char {
+  V = 2,
+};
+
+static void
+__attribute__((noinline,noclone))
+foo(unsigned &out, unsigned a, X b)
+{
+  out = static_cast<unsigned>(b);
+}
+
+int main()
+{
+  unsigned deadbeef = 0xDEADBEEF;
+  asm volatile ("" : "+d" (deadbeef), "+c" (deadbeef));
+
+  unsigned out;
+  foo(out, 2, X::V);
+
+  if (out != 2)
+    __builtin_abort ();
+
+  return 0;
+}