re PR c++/51416 ([c++0x] [4.6/4.7 Regression] ICE with invalid use of auto)

	PR c++/51416
	* init.c (build_value_init_noctor): Check for incomplete type.

From-SVN: r182430

gcc/cp/ChangeLog

+2011-12-16  Jason Merrill  <jason@redhat.com>
+
+	PR c++/51416
+	* init.c (build_value_init_noctor): Check for incomplete type.
+
 2011-12-16  Richard Henderson  <rth@redhat.com>
 
 	PR bootstrap/51072

gcc/testsuite/ChangeLog

+2011-12-16  Jason Merrill  <jason@redhat.com>
+
+	PR c++/51416
+	* g++.dg/cpp0x/auto31.C: New.
+
 2011-12-16  Ian Lance Taylor  <iant@google.com>
 
 	PR middle-end/51592

gcc/testsuite/g++.dg/cpp0x/auto31.C

+// PR c++/51416
+// { dg-do compile { target c++11 } }
+
+template<typename T, typename... U> void foo(T, U... u)
+{
+  auto foo(u...);		// { dg-error "auto" }
+}
+
+void bar()
+{
+  foo(0);
+}

gcc/testsuite/g++.dg/cpp0x/variadic103.C

@@ -5,7 +5,7 @@ T&& create();
 
 template<class T, class... Args>
 void test() {
-  T t(create<Args>()...);	// { dg-error "unknown bound" }
+  T t(create<Args>()...);	// { dg-error "incomplete" }
   (void) t;
 }