re PR c++/77638 (ICE on x86_64-linux-gnu (internal compiler error: tree check:…

re PR c++/77638 (ICE on x86_64-linux-gnu (internal compiler error: tree check: expected tree that contains ‘decl common’ structure, have ‘error_mark’ in cp_parser_template_declaration_after_parameters, at cp/parser.c:25722))

	PR c++/77638
	* parser.c (cp_parser_template_declaration_after_parameter): For 2
	argument operator"" template set ok to false for
	parm == error_mark_node.

	* g++.dg/cpp0x/udlit-tmpl-arg-neg2.C: New test.

From-SVN: r240266

gcc/cp/ChangeLog

 2016-09-20  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c++/77638
+	* parser.c (cp_parser_template_declaration_after_parameter): For 2
+	argument operator"" template set ok to false for
+	parm == error_mark_node.
+
 	PR c++/77637
 	* parser.c (cp_parser_std_attribute_list): Reject ... without
 	preceding attribute.

gcc/cp/parser.c

@@ -25723,7 +25723,8 @@ cp_parser_template_declaration_after_parameters (cp_parser* parser,
 	      tree type = INNERMOST_TEMPLATE_PARMS (parm_type);
 	      tree parm_list = TREE_VEC_ELT (parameter_list, 1);
 	      tree parm = INNERMOST_TEMPLATE_PARMS (parm_list);
-	      if (TREE_TYPE (parm) != TREE_TYPE (type)
+	      if (parm == error_mark_node
+		  || TREE_TYPE (parm) != TREE_TYPE (type)
 		  || !TEMPLATE_PARM_PARAMETER_PACK (DECL_INITIAL (parm)))
 		ok = false;
 	    }

gcc/testsuite/ChangeLog

 2016-09-20  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c++/77638
+	* g++.dg/cpp0x/udlit-tmpl-arg-neg2.C: New test.
+
 	PR c++/77637
 	* g++.dg/cpp0x/gen-attrs-62.C: New test.
 

gcc/testsuite/g++.dg/cpp0x/udlit-tmpl-arg-neg2.C

+// PR c++/77638
+// { dg-do compile { target c++11 } }
+
+template <T, T... U>		// { dg-error "'T' has not been declared" }
+int operator"" _foo ();		// { dg-error "has invalid parameter list" }
+template <T... U>		// { dg-error "'T' has not been declared" }
+int operator"" _bar ();		// { dg-error "has invalid parameter list" }