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diff --git a/gcc/testsuite/g++.dg/cpp1z/inh-ctor25.C b/gcc/testsuite/g++.dg/cpp1z/inh-ctor25.C
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+++ b/gcc/testsuite/g++.dg/cpp1z/inh-ctor25.C
@@ -0,0 +1,9 @@
+// Testcase from P0136
+// { dg-do compile { target c++11 } }
+
+struct M { M(); M(int); };
+struct N : M { using M::M; };
+struct O : M {};
+struct P : N, O { using N::N; using O::O; };
+P p(0); // OK: use M(0) to initialize N's base class,
+ // use M() to initialize O's base class