Don't crash when mangling empty anonymous unions. We never actually *need*

these, but it's convenient to mangle them when deferring them (in the 99.99%
case where it's not an anonymous union, of course).

llvm-svn: 110381

1 files changed, 11 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/mangle.cpp b/clang/test/CodeGenCXX/mangle.cpp
index 3a2e112f16c..4152dabc0b4 100644
--- a/clang/test/CodeGenCXX/mangle.cpp
+++ b/clang/test/CodeGenCXX/mangle.cpp
@@ -529,3 +529,14 @@ namespace test15 {
   // CHECK: define weak_odr void @_ZN6test151fILi7EEEvNS_1SIXplT_LNS_1EE3EEEE(
   template void f<7>(S<7 + e>);
 }
+
+// rdar://problem/8125400.  Don't crash.
+namespace test16 {
+  static union {};
+  static union { union {}; };
+  static union { struct {}; };
+  static union { union { union {}; }; };
+  static union { union { struct {}; }; };
+  static union { struct { union {}; }; };
+  static union { struct { struct {}; }; };
+}