From fe32bb1b5bd2973305a206a29ed4c7c8749d98c5 Mon Sep 17 00:00:00 2001
From: Nathan Sidwell <nathan@acm.org>
Date: Fri, 30 Jun 2017 14:50:48 +0000
Subject: cp-tree.h (lookup_fnfields_1, [...]): Don't declare.

	* cp-tree.h (lookup_fnfields_1, class_method_index_for_fn): Don't
	declare.
	(lookup_all_conversions): Declare.
	* class.c (get_basefndecls): Use lookup_fnfields_slot.
	* decl.c (register_dtor_fn): Use lookup_fnfields_slot.
	* decl2.c (check_class_fn): Use lookup_fnfields_slot.  Rework
	diagnostics.
	* pt.c (retrieve_specialization): Use lookup_fnfields_slot.
	(check_explicit_specialization): Use lookup_fnfields_slot_nolazy,
	lookup_all_conversions.
	* search.c (lookup_fnfields_1): Make static.
	(lookup_all_conversions): New.
	(class_method_index_for_fn): Delete.
	* semantics.c (classtype_has_nothrow_assign_or_copy_p): Use
	lookup_fnfields_slot.

	* g++.dg/concepts/memfun-err.C: Adjust diagnostics.
	* g++.dg/cpp0x/decltype9.C: Likewise.
	* g++.dg/cpp0x/forw_enum9.C: Likewise.
	* g++.dg/lookup/decl1.C: Likewise.
	* g++.dg/lookup/extern-c-redecl.C: Likewise.
	* g++.dg/other/pr28432.C: Likewise.
	* g++.dg/parse/crash12.C: Likewise.
	* g++.dg/parse/enum3.C: Likewise.
	* g++.dg/parse/operator6.C: Likewise.
	* g++.dg/template/crash69.C: Likewise.
	* g++.dg/template/error27.C: Likewise.
	* g++.dg/template/error28.C: Likewise.
	* g++.dg/template/memfriend6.C: Likewise.
	* g++.old-deja/g++.mike/err1.C: Likewise.
	* g++.old-deja/g++.mike/p811.C: Likewise.
	* g++.old-deja/g++.other/crash25.C: Likewise.
	* g++.old-deja/g++.other/dtor4.C: Likewise.
	* g++.old-deja/g++.pt/t37.C: Likewise.

From-SVN: r249843
---
 gcc/cp/ChangeLog                               |  16 +++
 gcc/cp/class.c                                 |  28 ++--
 gcc/cp/cp-tree.h                               |   3 +-
 gcc/cp/decl.c                                  |   6 +-
 gcc/cp/decl2.c                                 | 177 +++++++++++--------------
 gcc/cp/pt.c                                    |  56 ++------
 gcc/cp/search.c                                |  28 ++--
 gcc/cp/semantics.c                             |   6 +-
 gcc/testsuite/ChangeLog                        |  21 +++
 gcc/testsuite/g++.dg/concepts/memfun-err.C     |   6 +-
 gcc/testsuite/g++.dg/cpp0x/decltype9.C         |   6 +-
 gcc/testsuite/g++.dg/cpp0x/forw_enum9.C        |   2 +-
 gcc/testsuite/g++.dg/lookup/decl1.C            |  13 +-
 gcc/testsuite/g++.dg/lookup/extern-c-redecl.C  |   2 +-
 gcc/testsuite/g++.dg/other/pr28432.C           |   6 +-
 gcc/testsuite/g++.dg/parse/crash12.C           |   9 +-
 gcc/testsuite/g++.dg/parse/enum3.C             |   6 +-
 gcc/testsuite/g++.dg/parse/operator6.C         |   5 +-
 gcc/testsuite/g++.dg/template/crash69.C        |   5 +-
 gcc/testsuite/g++.dg/template/error27.C        |   5 +-
 gcc/testsuite/g++.dg/template/error28.C        |   5 +-
 gcc/testsuite/g++.dg/template/memfriend6.C     |  21 +--
 gcc/testsuite/g++.old-deja/g++.mike/err1.C     |   6 +-
 gcc/testsuite/g++.old-deja/g++.mike/p811.C     |  11 +-
 gcc/testsuite/g++.old-deja/g++.other/crash25.C |   3 +-
 gcc/testsuite/g++.old-deja/g++.other/dtor4.C   |  12 +-
 gcc/testsuite/g++.old-deja/g++.pt/t37.C        |   9 +-
 27 files changed, 234 insertions(+), 239 deletions(-)

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index c54cb24..4260bbf 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,21 @@
 2017-06-30  Nathan Sidwell  <nathan@acm.org>
 
+	* cp-tree.h (lookup_fnfields_1, class_method_index_for_fn): Don't
+	declare.
+	(lookup_all_conversions): Declare.
+	* class.c (get_basefndecls): Use lookup_fnfields_slot.
+	* decl.c (register_dtor_fn): Use lookup_fnfields_slot.
+	* decl2.c (check_class_fn): Use lookup_fnfields_slot.  Rework
+	diagnostics.
+	* pt.c (retrieve_specialization): Use lookup_fnfields_slot.
+	(check_explicit_specialization): Use lookup_fnfields_slot_nolazy,
+	lookup_all_conversions.
+	* search.c (lookup_fnfields_1): Make static.
+	(lookup_all_conversions): New.
+	(class_method_index_for_fn): Delete.
+	* semantics.c (classtype_has_nothrow_assign_or_copy_p): Use
+	lookup_fnfields_slot.
+
 	* call.c (build_new_method_call_1): Use constructo_name to get
 	ctor name.  Move argument processing earlier to merge cdtor
 	handling blocks.
diff --git a/gcc/cp/class.c b/gcc/cp/class.c
index 09633b8..0dca905 100644
--- a/gcc/cp/class.c
+++ b/gcc/cp/class.c
@@ -2966,29 +2966,25 @@ modify_all_vtables (tree t, tree virtuals)
 static void
 get_basefndecls (tree name, tree t, vec<tree> *base_fndecls)
 {
-  int n_baseclasses = BINFO_N_BASE_BINFOS (TYPE_BINFO (t));
-  int i;
+  bool found_decls = false;
 
   /* Find virtual functions in T with the indicated NAME.  */
-  i = lookup_fnfields_1 (t, name);
-  bool found_decls = false;
-  if (i != -1)
-    for (ovl_iterator iter ((*CLASSTYPE_METHOD_VEC (t))[i]); iter; ++iter)
-      {
-	tree method = *iter;
+  for (ovl_iterator iter (lookup_fnfields_slot (t, name)); iter; ++iter)
+    {
+      tree method = *iter;
 
-	if (TREE_CODE (method) == FUNCTION_DECL
-	    && DECL_VINDEX (method))
-	  {
-	    base_fndecls->safe_push (method);
-	    found_decls = true;
-	  }
-      }
+      if (TREE_CODE (method) == FUNCTION_DECL && DECL_VINDEX (method))
+	{
+	  base_fndecls->safe_push (method);
+	  found_decls = true;
+	}
+    }
 
   if (found_decls)
     return;
 
-  for (i = 0; i < n_baseclasses; i++)
+  int n_baseclasses = BINFO_N_BASE_BINFOS (TYPE_BINFO (t));
+  for (int i = 0; i < n_baseclasses; i++)
     {
       tree basetype = BINFO_TYPE (BINFO_BASE_BINFO (TYPE_BINFO (t), i));
       get_basefndecls (name, basetype, base_fndecls);
diff --git a/gcc/cp/cp-tree.h b/gcc/cp/cp-tree.h
index b3cff08..4b5ff69 100644
--- a/gcc/cp/cp-tree.h
+++ b/gcc/cp/cp-tree.h
@@ -6567,10 +6567,9 @@ extern int accessible_p				(tree, tree, bool);
 extern int accessible_in_template_p		(tree, tree);
 extern tree lookup_field_1			(tree, tree, bool);
 extern tree lookup_field			(tree, tree, int, bool);
-extern int lookup_fnfields_1			(tree, tree);
 extern tree lookup_fnfields_slot		(tree, tree);
 extern tree lookup_fnfields_slot_nolazy		(tree, tree);
-extern int class_method_index_for_fn		(tree, tree);
+extern tree lookup_all_conversions		(tree);
 extern tree lookup_fnfields			(tree, tree, int);
 extern tree lookup_member			(tree, tree, int, bool,
 						 tsubst_flags_t,
diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c
index abb6cc4..62877dc 100644
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -7849,12 +7849,8 @@ register_dtor_fn (tree decl)
   use_dtor = ob_parm && CLASS_TYPE_P (type);
   if (use_dtor)
     {
-      int idx;
+      cleanup = lookup_fnfields_slot (type, complete_dtor_identifier);
 
-      /* Find the destructor.  */
-      idx = lookup_fnfields_1 (type, complete_dtor_identifier);
-      gcc_assert (idx >= 0);
-      cleanup = (*CLASSTYPE_METHOD_VEC (type))[idx];
       /* Make sure it is accessible.  */
       perform_or_defer_access_check (TYPE_BINFO (type), cleanup, cleanup,
 				     tf_warning_or_error);
diff --git a/gcc/cp/decl2.c b/gcc/cp/decl2.c
index 08f122d..877745c 100644
--- a/gcc/cp/decl2.c
+++ b/gcc/cp/decl2.c
@@ -558,10 +558,6 @@ check_member_template (tree tmpl)
 tree
 check_classfn (tree ctype, tree function, tree template_parms)
 {
-  int ix;
-  bool is_template;
-  tree pushed_scope;
-  
   if (DECL_USE_TEMPLATE (function)
       && !(TREE_CODE (function) == TEMPLATE_DECL
 	   && DECL_TEMPLATE_SPECIALIZATION (function))
@@ -594,7 +590,7 @@ check_classfn (tree ctype, tree function, tree template_parms)
     }
 
   /* OK, is this a definition of a member template?  */
-  is_template = (template_parms != NULL_TREE);
+  bool is_template = (template_parms != NULL_TREE);
 
   /* [temp.mem]
 
@@ -608,111 +604,88 @@ check_classfn (tree ctype, tree function, tree template_parms)
   /* We must enter the scope here, because conversion operators are
      named by target type, and type equivalence relies on typenames
      resolving within the scope of CTYPE.  */
-  pushed_scope = push_scope (ctype);
-  ix = class_method_index_for_fn (complete_type (ctype), function);
-  if (ix >= 0)
-    {
-      vec<tree, va_gc> *methods = CLASSTYPE_METHOD_VEC (ctype);
-
-      for (ovl_iterator iter ((*methods)[ix]); iter; ++iter)
-	{
-	  tree fndecl = *iter;
-	  tree p1 = TYPE_ARG_TYPES (TREE_TYPE (function));
-	  tree p2 = TYPE_ARG_TYPES (TREE_TYPE (fndecl));
-
-	  /* We cannot simply call decls_match because this doesn't
-	     work for static member functions that are pretending to
-	     be methods, and because the name may have been changed by
-	     asm("new_name").  */
-
-	   /* Get rid of the this parameter on functions that become
-	      static.  */
-	  if (DECL_STATIC_FUNCTION_P (fndecl)
-	      && TREE_CODE (TREE_TYPE (function)) == METHOD_TYPE)
-	    p1 = TREE_CHAIN (p1);
-
-	  /* A member template definition only matches a member template
-	     declaration.  */
-	  if (is_template != (TREE_CODE (fndecl) == TEMPLATE_DECL))
-	    continue;
-
-	  /* ref-qualifier or absence of same must match.  */
-	  if (type_memfn_rqual (TREE_TYPE (function))
-	      != type_memfn_rqual (TREE_TYPE (fndecl)))
-	    continue;
-
-	  // Include constraints in the match.
-	  tree c1 = get_constraints (function);
-	  tree c2 = get_constraints (fndecl);
-
-	  /* While finding a match, same types and params are not enough
-	     if the function is versioned.  Also check version ("target")
-	     attributes.  */
-	  if (same_type_p (TREE_TYPE (TREE_TYPE (function)),
-			   TREE_TYPE (TREE_TYPE (fndecl)))
-	      && compparms (p1, p2)
-	      && !targetm.target_option.function_versions (function, fndecl)
-	      && (!is_template
-		  || comp_template_parms (template_parms,
-					  DECL_TEMPLATE_PARMS (fndecl)))
-	      && equivalent_constraints (c1, c2)
-	      && (DECL_TEMPLATE_SPECIALIZATION (function)
-		  == DECL_TEMPLATE_SPECIALIZATION (fndecl))
-	      && (!DECL_TEMPLATE_SPECIALIZATION (function)
-		  || (DECL_TI_TEMPLATE (function)
-		      == DECL_TI_TEMPLATE (fndecl))))
-	    {
-	      if (pushed_scope)
-		pop_scope (pushed_scope);
-	      return fndecl;
-	    }
-	}
-
-      error_at (DECL_SOURCE_LOCATION (function),
-		"prototype for %q#D does not match any in class %qT",
-		function, ctype);
+  tree pushed_scope = push_scope (ctype);
+  tree matched = NULL_TREE;
+  tree fns = lookup_fnfields_slot (ctype, DECL_NAME (function));
+  
+  for (ovl_iterator iter (fns); !matched && iter; ++iter)
+    {
+      tree fndecl = *iter;
+      tree p1 = TYPE_ARG_TYPES (TREE_TYPE (function));
+      tree p2 = TYPE_ARG_TYPES (TREE_TYPE (fndecl));
+
+      /* We cannot simply call decls_match because this doesn't work
+	 for static member functions that are pretending to be
+	 methods, and because the name may have been changed by
+	 asm("new_name").  */
+
+      /* Get rid of the this parameter on functions that become
+	 static.  */
+      if (DECL_STATIC_FUNCTION_P (fndecl)
+	  && TREE_CODE (TREE_TYPE (function)) == METHOD_TYPE)
+	p1 = TREE_CHAIN (p1);
+
+      /* A member template definition only matches a member template
+	 declaration.  */
+      if (is_template != (TREE_CODE (fndecl) == TEMPLATE_DECL))
+	continue;
 
-      const char *format = NULL;
-      tree first = OVL_FIRST ((*methods)[ix]);
-      bool is_conv_op = DECL_CONV_FN_P (first);
-      tree prev = NULL_TREE;
+      /* ref-qualifier or absence of same must match.  */
+      if (type_memfn_rqual (TREE_TYPE (function))
+	  != type_memfn_rqual (TREE_TYPE (fndecl)))
+	continue;
 
-      if (is_conv_op)
-	ix = CLASSTYPE_FIRST_CONVERSION_SLOT;
-      do
-	{
-	  ovl_iterator iter ((*methods)[ix++]);
-	  if (is_conv_op && !DECL_CONV_FN_P (*iter))
-	    break;
-	  for (; iter; ++iter)
-	    {
-	      if (prev)
-		{
-		  if (!format)
-		    format = N_("candidates are: %+#D");
-		  error (format, prev);
-		  format = "                %+#D";
-		}
-	      prev = *iter;
-	    }
-	}
-      while (is_conv_op && size_t (ix) < methods->length ());
-      if (prev)
+      // Include constraints in the match.
+      tree c1 = get_constraints (function);
+      tree c2 = get_constraints (fndecl);
+
+      /* While finding a match, same types and params are not enough
+	 if the function is versioned.  Also check version ("target")
+	 attributes.  */
+      if (same_type_p (TREE_TYPE (TREE_TYPE (function)),
+		       TREE_TYPE (TREE_TYPE (fndecl)))
+	  && compparms (p1, p2)
+	  && !targetm.target_option.function_versions (function, fndecl)
+	  && (!is_template
+	      || comp_template_parms (template_parms,
+				      DECL_TEMPLATE_PARMS (fndecl)))
+	  && equivalent_constraints (c1, c2)
+	  && (DECL_TEMPLATE_SPECIALIZATION (function)
+	      == DECL_TEMPLATE_SPECIALIZATION (fndecl))
+	  && (!DECL_TEMPLATE_SPECIALIZATION (function)
+	      || (DECL_TI_TEMPLATE (function) == DECL_TI_TEMPLATE (fndecl))))
+	matched = fndecl;
+    }
+
+  if (!matched)
+    {
+      if (!COMPLETE_TYPE_P (ctype))
+	cxx_incomplete_type_error (function, ctype);
+      else
 	{
-	  if (!format)
-	    format = N_("candidate is: %+#D");
-	  error (format, prev);
+	  if (DECL_CONV_FN_P (function))
+	    fns = lookup_all_conversions (ctype);
+
+	  error_at (DECL_SOURCE_LOCATION (function),
+		    "no declaration matches %q#D", function);
+	  if (fns)
+	    print_candidates (fns);
+	  else if (DECL_CONV_FN_P (function))
+	    inform (DECL_SOURCE_LOCATION (function),
+		    "no conversion operators declared");
+	  else
+	    inform (DECL_SOURCE_LOCATION (function),
+		    "no functions named %qD", function);
+	  inform (DECL_SOURCE_LOCATION (TYPE_NAME (ctype)),
+		  "%#qT defined here", ctype);
 	}
+      matched = error_mark_node;
     }
-  else if (!COMPLETE_TYPE_P (ctype))
-    cxx_incomplete_type_error (function, ctype);
-  else
-    error ("no %q#D member function declared in class %qT",
-	   function, ctype);
 
   if (pushed_scope)
     pop_scope (pushed_scope);
-  return error_mark_node;
+
+  return matched;
 }
 
 /* DECL is a function with vague linkage.  Remember it so that at the
diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index 79b55b5..6b6a1a6 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -1196,15 +1196,10 @@ retrieve_specialization (tree tmpl, tree args, hashval_t hash)
 	= retrieve_specialization (class_template, args, 0);
       if (!class_specialization)
 	return NULL_TREE;
-      /* Now, find the appropriate entry in the CLASSTYPE_METHOD_VEC
-	 for the specialization.  */
-      int idx = class_method_index_for_fn (class_specialization, tmpl);
-      if (idx == -1)
-	return NULL_TREE;
-      /* Iterate through the methods with the indicated name, looking
-	 for the one that has an instance of TMPL.  */
-      vec<tree, va_gc> *methods = CLASSTYPE_METHOD_VEC (class_specialization);
-      for (ovl_iterator iter ((*methods)[idx]); iter; ++iter)
+
+      /* Find the instance of TMPL.  */
+      tree fns = lookup_fnfields_slot (class_specialization, DECL_NAME (tmpl));
+      for (ovl_iterator iter (fns); iter; ++iter)
 	{
 	  tree fn = *iter;
 	  if (DECL_TEMPLATE_INFO (fn) && DECL_TI_TEMPLATE (fn) == tmpl
@@ -2876,8 +2871,6 @@ check_explicit_specialization (tree declarator,
 	  /* Find the list of functions in ctype that have the same
 	     name as the declared function.  */
 	  tree name = TREE_OPERAND (declarator, 0);
-	  tree fns = NULL_TREE;
-	  int idx;
 
 	  if (constructor_name_p (name, ctype))
 	    {
@@ -2900,39 +2893,16 @@ check_explicit_specialization (tree declarator,
 	      name = DECL_NAME (decl);
 	    }
 
-	  if (!DECL_CONV_FN_P (decl))
-	    {
-	      idx = lookup_fnfields_1 (ctype, name);
-	      if (idx >= 0)
-		fns = (*CLASSTYPE_METHOD_VEC (ctype))[idx];
-	    }
+	  tree fns = NULL_TREE;
+	  if (DECL_CONV_FN_P (decl))
+	    /* For a type-conversion operator, we cannot do a
+	       name-based lookup.  We might be looking for `operator
+	       int' which will be a specialization of `operator T'.
+	       Grab all the conversion operators, and then select from
+	       them.  */
+	    fns = lookup_all_conversions (ctype);
 	  else
-	    {
-	      vec<tree, va_gc> *methods;
-	      tree ovl;
-
-	      /* For a type-conversion operator, we cannot do a
-		 name-based lookup.  We might be looking for `operator
-		 int' which will be a specialization of `operator T'.
-		 So, we find *all* the conversion operators, and then
-		 select from them.  */
-	      fns = NULL_TREE;
-
-	      methods = CLASSTYPE_METHOD_VEC (ctype);
-	      if (methods)
-		for (idx = CLASSTYPE_FIRST_CONVERSION_SLOT;
-		     methods->iterate (idx, &ovl);
-		     ++idx)
-		  {
-		    if (!DECL_CONV_FN_P (OVL_FIRST (ovl)))
-		      /* There are no more conversion functions.  */
-		      break;
-
-		    /* Glue all these conversion functions together
-		       with those we already have.  */
-		    fns = lookup_add (ovl, fns);
-		  }
-	    }
+	    fns = lookup_fnfields_slot_nolazy (ctype, name);
 
 	  if (fns == NULL_TREE)
 	    {
diff --git a/gcc/cp/search.c b/gcc/cp/search.c
index 9d8a629..cd06e52 100644
--- a/gcc/cp/search.c
+++ b/gcc/cp/search.c
@@ -1648,7 +1648,7 @@ lookup_fnfields_idx_nolazy (tree type, tree name)
 /* TYPE is a class type. Return the index of the fields within
    the method vector with name NAME, or -1 if no such field exists.  */
 
-int
+static int
 lookup_fnfields_1 (tree type, tree name)
 {
   if (!CLASS_TYPE_P (type))
@@ -1705,17 +1705,29 @@ lookup_fnfields_slot_nolazy (tree type, tree name)
   return (*CLASSTYPE_METHOD_VEC (type))[ix];
 }
 
-/* Like lookup_fnfields_1, except that the name is extracted from
-   FUNCTION, which is a FUNCTION_DECL or a TEMPLATE_DECL.  */
+/* Collect all the conversion operators of KLASS.  */
 
-int
-class_method_index_for_fn (tree class_type, tree function)
+tree
+lookup_all_conversions (tree klass)
 {
-  gcc_assert (DECL_DECLARES_FUNCTION_P (function));
+  tree lkp = NULL_TREE;
 
-  return lookup_fnfields_1 (class_type, DECL_NAME (function));
-}
+  if (vec<tree, va_gc> *methods = CLASSTYPE_METHOD_VEC (klass))
+    {
+      tree ovl;
+      for (int idx = CLASSTYPE_FIRST_CONVERSION_SLOT;
+	   methods->iterate (idx, &ovl); ++idx)
+	{
+	  if (!DECL_CONV_FN_P (OVL_FIRST (ovl)))
+	    /* There are no more conversion functions.  */
+	    break;
+
+	  lkp = lookup_add (ovl, lkp);
+	}
+    }
 
+  return lkp;
+}
 
 /* DECL is the result of a qualified name lookup.  QUALIFYING_SCOPE is
    the class or namespace used to qualify the name.  CONTEXT_CLASS is
diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c
index 9589b47..e13943a 100644
--- a/gcc/cp/semantics.c
+++ b/gcc/cp/semantics.c
@@ -9081,11 +9081,9 @@ classtype_has_nothrow_assign_or_copy_p (tree type, bool assign_p)
 
   if (assign_p)
     {
-      int ix;
-      ix = lookup_fnfields_1 (type, cp_assignment_operator_id (NOP_EXPR));
-      if (ix < 0)
+      fns = lookup_fnfields_slot (type, cp_assignment_operator_id (NOP_EXPR));
+      if (!fns)
 	return false;
-      fns = (*CLASSTYPE_METHOD_VEC (type))[ix];
     } 
   else if (TYPE_HAS_COPY_CTOR (type))
     {
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 4d83720..2637ecc 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,24 @@
+2017-06-30  Nathan Sidwell  <nathan@acm.org>
+
+	* g++.dg/concepts/memfun-err.C: Adjust diagnostics.
+	* g++.dg/cpp0x/decltype9.C: Likewise.
+	* g++.dg/cpp0x/forw_enum9.C: Likewise.
+	* g++.dg/lookup/decl1.C: Likewise.
+	* g++.dg/lookup/extern-c-redecl.C: Likewise.
+	* g++.dg/other/pr28432.C: Likewise.
+	* g++.dg/parse/crash12.C: Likewise.
+	* g++.dg/parse/enum3.C: Likewise.
+	* g++.dg/parse/operator6.C: Likewise.
+	* g++.dg/template/crash69.C: Likewise.
+	* g++.dg/template/error27.C: Likewise.
+	* g++.dg/template/error28.C: Likewise.
+	* g++.dg/template/memfriend6.C: Likewise.
+	* g++.old-deja/g++.mike/err1.C: Likewise.
+	* g++.old-deja/g++.mike/p811.C: Likewise.
+	* g++.old-deja/g++.other/crash25.C: Likewise.
+	* g++.old-deja/g++.other/dtor4.C: Likewise.
+	* g++.old-deja/g++.pt/t37.C: Likewise.
+
 2017-06-30  Martin Liska  <mliska@suse.cz>
 
 	PR ipa/81214
diff --git a/gcc/testsuite/g++.dg/concepts/memfun-err.C b/gcc/testsuite/g++.dg/concepts/memfun-err.C
index e44273c..f44610a 100644
--- a/gcc/testsuite/g++.dg/concepts/memfun-err.C
+++ b/gcc/testsuite/g++.dg/concepts/memfun-err.C
@@ -15,16 +15,16 @@ int called = 0;
 
 // Test constrained member definitions
 template<typename T>
-  struct S1 {
+  struct S1 { // { dg-message "defined here" }
     void f1() requires C<T>() { }
     void g1() requires C<T>() and true;
     template<C U> void h1(U u) { called = 1; }
 
-    void g2() requires C<T>(); // { dg-error "candidate" }
+    void g2() requires C<T>(); // { dg-message "candidate" }
   };
 
 template<typename T>
-  void S1<T>::g2() requires D<T>() { } // { dg-error "prototype" }
+  void S1<T>::g2() requires D<T>() { } // { dg-error "no declaration matches" }
 
 int main() {
   S1<X> sx;
diff --git a/gcc/testsuite/g++.dg/cpp0x/decltype9.C b/gcc/testsuite/g++.dg/cpp0x/decltype9.C
index 9db3db0..45cd9ed 100644
--- a/gcc/testsuite/g++.dg/cpp0x/decltype9.C
+++ b/gcc/testsuite/g++.dg/cpp0x/decltype9.C
@@ -1,9 +1,9 @@
 // PR c++/34271
 // { dg-do compile { target c++11 } }
 
-template<int> struct A
-{
+template<int> struct A { // { dg-message "defined here" }
   static int i;
 };
 
-template<int N> int A<N>::i(decltype (A::i));	// { dg-error "member function|must be an expression" }
+template<int N> int A<N>::i(decltype (A::i));	// { dg-error "no declaration" }
+// { dg-message "no functions" "note" { target *-*-* } .-1 }
diff --git a/gcc/testsuite/g++.dg/cpp0x/forw_enum9.C b/gcc/testsuite/g++.dg/cpp0x/forw_enum9.C
index 4f1475a..acf16c6 100644
--- a/gcc/testsuite/g++.dg/cpp0x/forw_enum9.C
+++ b/gcc/testsuite/g++.dg/cpp0x/forw_enum9.C
@@ -4,7 +4,7 @@
 template<typename T> struct S1
 {
     enum E1 : int;
-    enum class E2 : int;
+    enum class E2 : T;
 };
 
 template<typename T> enum S1<T>::E1 : int { e1 };
diff --git a/gcc/testsuite/g++.dg/lookup/decl1.C b/gcc/testsuite/g++.dg/lookup/decl1.C
index 42a9978..205ffcf 100644
--- a/gcc/testsuite/g++.dg/lookup/decl1.C
+++ b/gcc/testsuite/g++.dg/lookup/decl1.C
@@ -19,14 +19,13 @@ C2<X>::operator C1<Y>()
   return C1<Y>();
 }
 
-struct A
-{
-  operator int ();			// { dg-error "operator" }
-  operator float ();			// { dg-error "operator" }
-  operator float () const;		// { dg-error "operator" }
-  template <typename T> operator T * (); // { dg-error "candidates" }
+struct A { // { dg-message "defined here" }
+  operator int ();			// { dg-message "operator" }
+  operator float ();			// { dg-message "operator" }
+  operator float () const;		// { dg-message "operator" }
+  template <typename T> operator T * (); // { dg-message "operator" }
 };
 
-A::operator short () { // { dg-error "prototype for" }
+A::operator short () { // { dg-error "no declaration matches" }
   return 0;
 }
diff --git a/gcc/testsuite/g++.dg/lookup/extern-c-redecl.C b/gcc/testsuite/g++.dg/lookup/extern-c-redecl.C
index 31d100a..3e901cc 100644
--- a/gcc/testsuite/g++.dg/lookup/extern-c-redecl.C
+++ b/gcc/testsuite/g++.dg/lookup/extern-c-redecl.C
@@ -8,4 +8,4 @@ namespace A {
 // next line should trigger an error because
 // it conflicts with previous declaration of foo_func (), due to
 // different exception specifications.
-extern "C" void foo_func (); // { dg-error "C language|exception specifications" }
+extern "C" void foo_func (); // { dg-error "C language linkage|exception specifications" }
diff --git a/gcc/testsuite/g++.dg/other/pr28432.C b/gcc/testsuite/g++.dg/other/pr28432.C
index 2b9c763..8e24285 100644
--- a/gcc/testsuite/g++.dg/other/pr28432.C
+++ b/gcc/testsuite/g++.dg/other/pr28432.C
@@ -3,5 +3,7 @@
 
 // { dg-options "" }
 
-struct A {};
-void A::foo(); // { dg-error "member function declared in class|outside of class is not definition" }
+struct A {}; // { dg-message "defined here" }
+
+void A::foo(); // { dg-error "no declaration matches" }
+// { dg-message "no functions named" "note" { target *-*-* } .-1 }
diff --git a/gcc/testsuite/g++.dg/parse/crash12.C b/gcc/testsuite/g++.dg/parse/crash12.C
index 769ca2e..61921fd 100644
--- a/gcc/testsuite/g++.dg/parse/crash12.C
+++ b/gcc/testsuite/g++.dg/parse/crash12.C
@@ -6,15 +6,16 @@
 
 template <class _Tp> class auto_ptr {};
 template <class _Tp>
-class counted_ptr
-{
+class counted_ptr { // { dg-message "defined here" }
 public:
-  counted_ptr(::auto_ptr<_Tp>& __a);		// { dg-error "candidate" }
+  counted_ptr(::auto_ptr<_Tp>& __a);		// { dg-message "candidate" }
   ::auto_ptr<_Tp> auto_ptr();
 };
 
 template <class _Tp>
-inline counted_ptr<_Tp>::counted_ptr(class auto_ptr& __a) // { dg-error "required|not match|template" }
+inline counted_ptr<_Tp>::counted_ptr(class auto_ptr& __a)
+// { dg-error "no declaration matches" "" { target *-*-* } .-1 }
+// { dg-error "template argument required" "" { target *-*-* } .-2 }
 {
 }
 
diff --git a/gcc/testsuite/g++.dg/parse/enum3.C b/gcc/testsuite/g++.dg/parse/enum3.C
index dc07193..81e6963 100644
--- a/gcc/testsuite/g++.dg/parse/enum3.C
+++ b/gcc/testsuite/g++.dg/parse/enum3.C
@@ -1,5 +1,7 @@
 // PR c++/28261
 
-struct A {}; // { dg-error "A::A" }
+struct A {}; // { dg-message "A::A" }
+// { dg-message "defined here" "" { target *-*-* } .-1 }
 
-A::A (enum { e }) {} // { dg-error "defined|prototype" }
+A::A (enum { e }) {} // { dg-error "no declaration matches" }
+// { dg-error "in parameter types" "" { target *-*-* } .-1 }
diff --git a/gcc/testsuite/g++.dg/parse/operator6.C b/gcc/testsuite/g++.dg/parse/operator6.C
index e58a3a6..c13860e 100644
--- a/gcc/testsuite/g++.dg/parse/operator6.C
+++ b/gcc/testsuite/g++.dg/parse/operator6.C
@@ -1,5 +1,6 @@
 // PR c++/25635
 
-struct A {};
+struct A {}; // { dg-message "defined here" }
 
-A::operator int(); // { dg-error "class" }
+A::operator int(); // { dg-error "no declaration matches" }
+// { dg-message "no conversion operators" "" { target *-*-* } .-1 }
diff --git a/gcc/testsuite/g++.dg/template/crash69.C b/gcc/testsuite/g++.dg/template/crash69.C
index badf70bd..21ed91b 100644
--- a/gcc/testsuite/g++.dg/template/crash69.C
+++ b/gcc/testsuite/g++.dg/template/crash69.C
@@ -3,10 +3,11 @@
 template<typename T> class A
 {
   static int i; // { dg-message "private" }
-  friend int T::foo(); // { dg-error "does not match" }
+  friend int T::foo(); // { dg-error "no declaration matches" }
 };
 
 struct B
 {
-  void foo() { A<B>::i; } // { dg-error "within|candidate" }
+  void foo() { A<B>::i; } // { dg-message "candidate" }
+  // { dg-error "private within" "" { target *-*-* } .-1 }
 };
diff --git a/gcc/testsuite/g++.dg/template/error27.C b/gcc/testsuite/g++.dg/template/error27.C
index 8d41d02..7f15f8c 100644
--- a/gcc/testsuite/g++.dg/template/error27.C
+++ b/gcc/testsuite/g++.dg/template/error27.C
@@ -1,5 +1,6 @@
 // PR c++/27211
 
-struct A {};
+struct A {}; // { dg-message "defined here" }
 
-template<int> void A::foo() {} // { dg-error "member function" }
+template<int> void A::foo() {} // { dg-error "no declaration matches" }
+// { dg-message "no functions named" "note" { target *-*-* } .-1 }
diff --git a/gcc/testsuite/g++.dg/template/error28.C b/gcc/testsuite/g++.dg/template/error28.C
index e87d542..d4cf031 100644
--- a/gcc/testsuite/g++.dg/template/error28.C
+++ b/gcc/testsuite/g++.dg/template/error28.C
@@ -1,5 +1,6 @@
 // PR c++/27211
 
-struct A {};
+struct A {}; // { dg-message "defined here" }
 
-template<int> void A::foo(); // { dg-error "member function" }
+template<int> void A::foo(); // { dg-error "no declaration matches" }
+// { dg-message "no functions named" "note" { target *-*-* } .-1 }
diff --git a/gcc/testsuite/g++.dg/template/memfriend6.C b/gcc/testsuite/g++.dg/template/memfriend6.C
index 5f82339..4f126862 100644
--- a/gcc/testsuite/g++.dg/template/memfriend6.C
+++ b/gcc/testsuite/g++.dg/template/memfriend6.C
@@ -6,18 +6,21 @@
 // Member function of class template as friend
 // Erroneous case: mismatch during declaration
 
-template <class T> struct A {
-  template <class U> void f(U);		// { dg-error "candidate" }
-  void g();				// { dg-error "candidate|with" }
-  void h();				// { dg-error "candidate|with" }
-  void i(int);				// { dg-error "candidate" }
+template <class T> struct A { // { dg-message "defined here" }
+  template <class U> void f(U);		// { dg-message "candidate" }
+  void g();				// { dg-message "candidate" }
+  void h();				// { dg-message "candidate" }
+  void i(int);				// { dg-message "candidate" }
 };
 
 class C {
   int ii;
-  template <class U> friend void A<U>::f(U);	// { dg-error "not match" }
+  template <class U>
+  friend void A<U>::f(U); // { dg-error "no declaration matches" }
   template <class U> template <class V>
-    friend void A<U>::g();			// { dg-error "not match|cannot be overloaded" }
-  template <class U> friend int A<U>::h();	// { dg-error "not match|cannot be overloaded" }
-  template <class U> friend void A<U>::i(char);	// { dg-error "not match" }
+    friend void A<U>::g();  // { dg-error "no declaration matches" }
+  template <class U>
+  friend int A<U>::h();	// { dg-error "no declaration matches" }
+  template <class U>
+  friend void A<U>::i(char);	// { dg-error "no declaration matches" }
 };
diff --git a/gcc/testsuite/g++.old-deja/g++.mike/err1.C b/gcc/testsuite/g++.old-deja/g++.mike/err1.C
index 8e15dd2..90f4ce6 100644
--- a/gcc/testsuite/g++.old-deja/g++.mike/err1.C
+++ b/gcc/testsuite/g++.old-deja/g++.mike/err1.C
@@ -1,8 +1,8 @@
 // { dg-do assemble  }
 
-struct gorf {
+struct gorf { // { dg-message "defined here" }
   int stuff;
-  void snarf();			// { dg-error "" } 
+  void snarf();			// { dg-message "" } 
 };
 
-template <class T> void gorf::snarf() { return; }  // { dg-error "" } 
+template <class T> void gorf::snarf() { return; }  // { dg-error "no declaration" } 
diff --git a/gcc/testsuite/g++.old-deja/g++.mike/p811.C b/gcc/testsuite/g++.old-deja/g++.mike/p811.C
index 260c645..5c8260a 100644
--- a/gcc/testsuite/g++.old-deja/g++.mike/p811.C
+++ b/gcc/testsuite/g++.old-deja/g++.mike/p811.C
@@ -515,21 +515,22 @@ public:
     virtual char *stringify2() const = 0; // { dg-error "overriding" } 
 };
 
-class X: public Y {
+class X: public Y { // { dg-message "defined here" }
 public:
     X(): Y() {}
-    const char *stringify();		// { dg-error "candidate" }
-    const char *stringify2() const;  // { dg-error "candidate|conflicting return type" }
+    const char *stringify();		// { dg-message "candidate" }
+    const char *stringify2() const;  // { dg-message "candidate" }
+  // { dg-error "conflicting return type" "" { target *-*-* } .-1 }
 };
 
 char *
-X::stringify() const  // { dg-error "does not match" }
+X::stringify() const  // { dg-error "no declaration matches" }
 {
     return "stringify";
 }
 
 const char *
-X::stringify2()   // { dg-error "does not match" }
+X::stringify2()   // { dg-error "no declaration matches" }
 {
     return "stringify2";
 }
diff --git a/gcc/testsuite/g++.old-deja/g++.other/crash25.C b/gcc/testsuite/g++.old-deja/g++.other/crash25.C
index 5b313db..0611286 100644
--- a/gcc/testsuite/g++.old-deja/g++.other/crash25.C
+++ b/gcc/testsuite/g++.old-deja/g++.other/crash25.C
@@ -9,7 +9,8 @@ public:
   virtual ~X();
 }
 
-X::x()	// { dg-error "6:no 'X X::x\\(\\)' member function declared in class 'X'" }
+X::x()	// { dg-error "1:no declaration matches" }
+// { dg-message "1:no functions named" "note" { target *-*-* } .-1 }
 {
 }
 
diff --git a/gcc/testsuite/g++.old-deja/g++.other/dtor4.C b/gcc/testsuite/g++.old-deja/g++.other/dtor4.C
index a4db38b..b7ae370 100644
--- a/gcc/testsuite/g++.old-deja/g++.other/dtor4.C
+++ b/gcc/testsuite/g++.old-deja/g++.other/dtor4.C
@@ -1,10 +1,10 @@
 // { dg-do assemble  }
 
-struct S1 {
-  ~S1(); // { dg-error "" } candidate
+struct S1 { // { dg-message "defined here" }
+  ~S1(); // { dg-message "candidate" }
 };
 
-S1::~S1() const // { dg-error "" } prototype does not match 
+S1::~S1() const // { dg-error "no declaration matches" }
 {
 }
 
@@ -15,12 +15,12 @@ struct S2 {
 
 
 template <class T>
-struct S3 {
-  ~S3(); // { dg-error "" } candidate
+struct S3 { // { dg-message "defined here" }
+  ~S3(); // { dg-message "candidate" }
 };
 
 template <class T>
-S3<T>::~S3() volatile  // { dg-error "" } prototype does not match 
+S3<T>::~S3() volatile  // { dg-error "no declaration matches" }
 {
 }
 
diff --git a/gcc/testsuite/g++.old-deja/g++.pt/t37.C b/gcc/testsuite/g++.old-deja/g++.pt/t37.C
index 99348c0..dbf1f44 100644
--- a/gcc/testsuite/g++.old-deja/g++.pt/t37.C
+++ b/gcc/testsuite/g++.old-deja/g++.pt/t37.C
@@ -1,9 +1,10 @@
-// { dg-do assemble  }
+// { dg-do compile  }
 
-class A { // { dg-error "" } synthesized copy ctor
+class A { // { dg-message "A::A" } synthesized copy ctor
+  // { dg-message "defined here" "note" { target *-*-* } .-1 }
 public:
-  A(int);			// { dg-error "" } referenced below
-  A(float);			// { dg-error "" } referenced below
+  A(int);			// { dg-message "A::A" }
+  A(float);			// { dg-message "A::A" }
   ~A();
 };
 
-- 
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