re PR middle-end/42760 (ICE in convert_move)

	PR middle-end/42760
	* g++.dg/torture/pr42760.C: New test.

From-SVN: r155960

gcc/testsuite/ChangeLog

+2010-01-16  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/42760
+	* g++.dg/torture/pr42760.C: New test.
+
 2010-01-15  Jing Yu  <jingyu@google.com>
 
 	PR rtl-optimization/42691

gcc/testsuite/g++.dg/torture/pr42760.C

+// PR middle-end/42760
+// { dg-do compile }
+
+template <typename T>
+struct A
+{
+  static T b (T it) { return it; }
+};
+
+template <typename T, typename U>
+static U
+baz (T x, T y, U z)
+{
+  for (long n = y - x; n > 0; --n)
+    {
+      *z = *x;
+      ++z;
+    }
+};
+
+template <typename T, typename U>
+U
+bar (T x, T y, U z)
+{
+  baz (A <T>::b (x), A <T>::b (y), A <U>::b (z));
+}
+
+struct C
+{
+  __complex__ float v;
+};
+
+template <class T>
+struct B
+{
+  B (T y[]) { bar (y, y + 1, x); }
+  operator T *() { return x; }
+  T x[1];
+};
+
+B <C>
+foo ()
+{
+  C y[1];
+  return B <C> (y);
+};