1 files changed, 46 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Wcxx-compat-3.c b/gcc/testsuite/gcc.dg/Wcxx-compat-3.c
new file mode 100644
index 000000000..306167314
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wcxx-compat-3.c
@@ -0,0 +1,46 @@
+/* { dg-do compile } */
+/* { dg-options "-Wc++-compat" } */
+enum E1 { A, B, C };
+enum E2 { D, E, F };
+extern void f2 (enum E1);
+
+void
+f1 ()
+{
+  int a = A;
+  enum E1 e1;
+  enum E2 e2;
+
+  f2 (0);	/* { dg-warning "invalid in C\[+\]\[+\]" } */
+  f2 (A);
+  f2 (D);	/* { dg-warning "invalid in C\[+\]\[+\]" } */
+  f2 (a);	/* { dg-warning "invalid in C\[+\]\[+\]" } */
+  f2 (e1);
+  f2 (e2);	/* { dg-warning "invalid in C\[+\]\[+\]" } */
+  f2 ((A));
+  f2 (a ? A : B);
+  f2 ((enum E1) 0);
+  f2 ((enum E1) D);
+  f2 ((enum E1) a);
+  f2 ((enum E1) e2);
+}
+
+struct s1 { enum E1 e1 : 3; };
+struct s2 { enum E2 e2 : 3; };
+
+void
+f3 (struct s1 sv1, struct s2 sv2)
+{
+  f2 (sv1.e1);
+  f2 (sv2.e2);	/* { dg-warning "invalid in C\[+\]\[+\]" } */
+}
+
+void
+f4 (struct s1 *pv1, struct s2 *pv2)
+{
+  f2 (pv1->e1);
+  f2 (pv2->e2);	/* { dg-warning "invalid in C\[+\]\[+\]" } */
+}
+
+/* Match all extra informative notes.  */
+/* { dg-message "note: expected '\[^\n'\]*' but argument is of type '\[^\n'\]*'" "note: expected" { target *-*-* } 0 } */