--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/CodeGenObjC/encode-test-4.m	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,10 @@
+// RUN: %clang_cc1 -emit-llvm -o - %s -O2 | grep "ret i32 1"
+typedef long Integer;
+typedef enum : Integer { Red, Green, Blue} Color;
+typedef enum { Cyan, Magenta, Yellow, Key } PrintColor;
+
+int a() {
+  return @encode(int) == @encode(int) &&
+    @encode(Color) == @encode(long) &&
+    @encode(PrintColor) == @encode(int);
+}