re PR c++/60277 (Bogus "inline function virtual ..." used but never defined)

	PR c++/60277
	* call.c (build_array_conv): Don't crash on VLA.

From-SVN: r208001

gcc/cp/ChangeLog

 2014-02-21  Jason Merrill  <jason@redhat.com>
 
+	PR c++/60277
+	* call.c (build_array_conv): Don't crash on VLA.
+
 	PR c++/60248
 	* mangle.c (mangle_decl): Don't make an alias for a TYPE_DECL.
 

gcc/cp/call.c

@@ -948,7 +948,8 @@ build_array_conv (tree type, tree ctor, int flags, tsubst_flags_t complain)
   bool user = false;
   enum conversion_rank rank = cr_exact;
 
-  if (TYPE_DOMAIN (type))
+  if (TYPE_DOMAIN (type)
+      && !variably_modified_type_p (TYPE_DOMAIN (type), NULL_TREE))
     {
       unsigned HOST_WIDE_INT alen = tree_to_uhwi (array_type_nelts_top (type));
       if (alen < len)

gcc/testsuite/g++.dg/cpp1y/vla13.C

+// PR c++/60277
+// { dg-options "-std=c++1y -pedantic-errors" }
+
+void foo(int n)
+{
+  int a[n];
+  int (&r)[n] = {};		// { dg-error "" }
+}