--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/ipa/ipa-icf-6.C	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,36 @@
+/* { dg-do run } */
+/* { dg-options "-O3 -fdump-ipa-icf"  } */
+
+struct A {                                                                      
+  A() {ptr=&b;}                                                                 
+  A(const A &a) {ptr = &b;}                                                     
+  void test() { if (ptr != &b) __builtin_abort ();}                             
+  int b;                                                                        
+  int *ptr;                                                                     
+};                                                                              
+
+A test1(A a)
+{
+  a.test();
+  return a;
+}
+A test2(A a)
+{
+  a.test();
+  return a;
+}
+__attribute__ ((noinline))
+static void
+test_me (A (*t)(A))
+{
+  struct A a, b=t(a);
+  b.test ();
+}
+int
+main()
+{
+  test_me (test1);
+  test_me (test2);
+  return 0;
+}
+/* { dg-final { scan-ipa-dump-times "Unified; Wrapper has been created" 1 "icf"  } } */