Add a testcase for C++11 union support.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157952 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGenCXX/debug-info-union.cpp b/test/CodeGenCXX/debug-info-union.cpp
new file mode 100644 (file)
index 0000000..e4e1abb
--- /dev/null
+++ b/test/CodeGenCXX/debug-info-union.cpp
@@ -0,0 +1,16 @@
+// RUN: %clang_cc1 -emit-llvm -g -triple x86_64-apple-darwin -std=c++11 %s -o - | FileCheck %s
+
+union E {
+  int a;
+  float b;
+  int bb() { return a;}
+  float aa() { return b;}
+  E() { a = 0; }
+};
+
+E e;
+
+// CHECK: metadata !{i32 {{.*}}, null, metadata !"E", metadata !6, i32 3, i64 32, i64 32, i64 0, i32 0, null, metadata !11, i32 0, null} ; [ DW_TAG_union_type ]
+// CHECK: metadata !{i32 {{.*}}, i32 0, metadata !10, metadata !"bb", metadata !"bb", metadata !"_ZN1E2bbEv", metadata !6, i32 6, metadata !17, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 false, null, null, i32 0, metadata !19, i32 6} ; [ DW_TAG_subprogram ]
+// CHECK: metadata !{i32 {{.*}}, i32 0, metadata !10, metadata !"aa", metadata !"aa", metadata !"_ZN1E2aaEv", metadata !6, i32 7, metadata !22, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 false, null, null, i32 0, metadata !24, i32 7} ; [ DW_TAG_subprogram ]
+// CHECK: metadata !{i32 {{.*}}, i32 0, metadata !10, metadata !"E", metadata !"E", metadata !"", metadata !6, i32 8, metadata !7, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 false, null, null, i32 0, metadata !27, i32 8} ; [ DW_TAG_subprogram ]