re PR c++/49838 ([C++0x] ICE in cp_parser_perform_range_for_lookup, at cp/parser.c:8796)

/cp
2011-07-25  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/49838
	* parser.c (cp_parser_perform_range_for_lookup): Early return if
	error_operand_p (range).

/testsuite
2011-07-25  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/49838
	* g++.dg/cpp0x/range-for19.C: New.

From-SVN: r176754

gcc/cp/ChangeLog

+2011-07-25  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/49838
+	* parser.c (cp_parser_perform_range_for_lookup): Early return if
+	error_operand_p (range).
+
 2011-07-23  Jason Merrill  <jason@redhat.com>
 
 	PR c++/49823

gcc/cp/parser.c

@@ -8795,6 +8795,9 @@ cp_convert_range_for (tree statement, tree range_decl, tree range_expr)
 static tree
 cp_parser_perform_range_for_lookup (tree range, tree *begin, tree *end)
 {
+  if (error_operand_p (range))
+    return error_mark_node;
+
   if (!COMPLETE_TYPE_P (complete_type (TREE_TYPE (range))))
     {
       error ("range-based %<for%> expression of type %qT "

gcc/testsuite/ChangeLog

+2011-07-25  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/49838
+	* g++.dg/cpp0x/range-for19.C: New.
+
 2011-07-25  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	PR testsuite/49753

gcc/testsuite/g++.dg/cpp0x/range-for19.C

+// PR c++/49838
+
+// { dg-do compile }
+// { dg-options "-std=c++0x" }
+
+int main()
+{
+  auto a;        // { dg-error "no initializer" }
+  for(auto i: a) // { dg-error "deduce" }
+    ;
+}