1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/ext/attrib32.C b/gcc/testsuite/g++.dg/ext/attrib32.C
new file mode 100644
index 000000000..77f71ded8
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/attrib32.C
@@ -0,0 +1,36 @@
+// PR c++/35315
+
+typedef union { int i; } U __attribute__((transparent_union));
+
+static void foo(U) {}
+static void foo(int) {}
+
+void bar()
+{
+  foo(0);
+}
+
+typedef union U1 { int i; } U2 __attribute__((transparent_union));
+
+static void foo2(U1) {}
+static void foo2(U2) {}
+
+void bar2(U1 u1, U2 u2)
+{
+  foo2(u1);
+  foo2(u2);
+}
+
+// PR c++/36410
+struct A
+{
+  typedef union
+  {
+    int i;
+  } B __attribute__((transparent_union));
+};
+
+void foo(A::B b)
+{
+  b.i;
+}