* error.c (dump_type): Improve typedef handling.

From-SVN: r160184

gcc/cp/ChangeLog

 2010-06-02  Jason Merrill  <jason@redhat.com>
 
+	* error.c (dump_type): Improve typedef handling.
+
 	PR c++/9726
 	PR c++/23594
 	PR c++/44333

gcc/cp/error.c

@@ -329,6 +329,25 @@ dump_type (tree t, int flags)
   if (t == NULL_TREE)
     return;
 
+  /* Don't print e.g. "struct mytypedef".  */
+  if (TYPE_P (t) && typedef_variant_p (t))
+    {
+      tree decl = TYPE_NAME (t);
+      if ((flags & TFF_CHASE_TYPEDEF)
+	  || DECL_SELF_REFERENCE_P (decl)
+	  || (!flag_pretty_templates
+	      && DECL_LANG_SPECIFIC (decl) && DECL_TEMPLATE_INFO (decl)))
+	t = strip_typedefs (t);
+      else if (same_type_p (t, TREE_TYPE (decl)))
+	t = decl;
+      else
+	{
+	  pp_cxx_cv_qualifier_seq (cxx_pp, t);
+	  pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
+	  return;
+	}
+    }
+
   if (TYPE_PTRMEMFUNC_P (t))
     goto offset_type;
 

gcc/testsuite/ChangeLog

 2010-06-02  Jason Merrill  <jason@redhat.com>
 
+	* g++.dg/ext/vector9.C: Expect typedef in error message.
+
 	PR c++/9726
 	PR c++/23594
 	PR c++/44333

gcc/testsuite/g++.dg/ext/vector9.C

@@ -6,5 +6,5 @@ typedef int   v4i __attribute__((vector_size(8)));
 void foo()
 {
   v4f v;
-  !(v4i)v; // { dg-error "__vector.2. int|argument" }
+  !(v4i)v; // { dg-error "v4i|argument" }
 }