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diff --git a/gcc/testsuite/g++.old-deja/g++.other/ambig2.C b/gcc/testsuite/g++.old-deja/g++.other/ambig2.C
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+++ b/gcc/testsuite/g++.old-deja/g++.other/ambig2.C
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+// { dg-do assemble }
+// Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+// Contributed by Nathan Sidwell 29 Aug 1999 <nathan@acm.org>
+
+// We should spot all ambiguities
+
+struct A {int m;};
+struct B : A { int m; };
+struct C : A { int m; };
+struct D0 : virtual B, virtual C { int m; };
+struct D1 : virtual B, C { int m; };
+struct D2 : B, virtual C { int m; };
+struct D3 : B, C { int m; };
+
+void fn(D0 *d0, D1 *d1, D2 *d2, D3 *d3)
+{
+ A *a0 = d0; // { dg-error "" } A is an ambiguous base
+ A *a1 = d1; // { dg-error "" } A is an ambiguous base
+ A *a2 = d2; // { dg-error "" } A is an ambiguous base
+ A *a3 = d3; // { dg-error "" } A is an ambiguous base
+}