1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/debug/anonunion1.C b/gcc/testsuite/g++.dg/debug/anonunion1.C
new file mode 100644
index 000000000..c48a8cdc1
--- /dev/null
+++ b/gcc/testsuite/g++.dg/debug/anonunion1.C
@@ -0,0 +1,14 @@
+// PR debug/9039
+// Verify that the debugging backends don't get confused by ALIAS_DECLs.
+
+int foo()
+{
+  union
+  {
+    int z;
+    unsigned int w;
+  };
+
+  w = 0;
+  return 0;
+}