diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 78829ebe0d06..de97d53f6b82 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2004-06-21  Richard Sandiford  <rsandifo@redhat.com>
+
+	* g++.dg/opt/placeholder1.C: New test.
+
 2004-06-20  Eric Botcazou  <ebotcazou@libertysurf.fr>
 
 	* gcc.dg/compat/struct-complex-1_x.c: Add dummy symbol.
diff --git a/gcc/testsuite/g++.dg/opt/placeholder1.C b/gcc/testsuite/g++.dg/opt/placeholder1.C
new file mode 100644
index 000000000000..a1c984263daa
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/placeholder1.C
@@ -0,0 +1,10 @@
+// PR rtl-optimization/15159
+// { dg-options "-O2" }
+struct S { S (); };
+struct P { P (S *); };
+void foo (const P &);
+void bar ()
+{
+  P p = new S;
+  foo (p);
+}