re PR c++/57899 (bind/function with data member: infinite recursion)

	PR c++/57899
	* cp-tree.h (struct saved_scope): Add x_local_specializations.
	(local_specializations): New macro.
	* pt.c (local_specializations): Remove variable.

From-SVN: r207332

gcc/cp/ChangeLog

+2014-01-30  Jason Merrill  <jason@redhat.com>
+
+	PR c++/57899
+	* cp-tree.h (struct saved_scope): Add x_local_specializations.
+	(local_specializations): New macro.
+	* pt.c (local_specializations): Remove variable.
+
 2014-01-30  Richard Sandiford  <rdsandiford@googlemail.com>
 
 	PR c++/58708

gcc/cp/cp-tree.h

@@ -1049,6 +1049,8 @@ struct GTY(()) saved_scope {
   cp_binding_level *class_bindings;
   cp_binding_level *bindings;
 
+  struct pointer_map_t *x_local_specializations;
+
   struct saved_scope *prev;
 };
 
@@ -1098,6 +1100,12 @@ struct GTY(()) saved_scope {
 
 #define previous_class_level scope_chain->x_previous_class_level
 
+/* A map from local variable declarations in the body of the template
+   presently being instantiated to the corresponding instantiated
+   local variables.  */
+
+#define local_specializations scope_chain->x_local_specializations
+
 /* A list of private types mentioned, for deferred access checking.  */
 
 extern GTY(()) struct saved_scope *scope_chain;

gcc/cp/pt.c

@@ -78,11 +78,6 @@ static GTY(()) tree saved_access_scope;
    to the EXPR_STMT that is its result.  */
 static tree cur_stmt_expr;
 
-/* A map from local variable declarations in the body of the template
-   presently being instantiated to the corresponding instantiated
-   local variables.  */
-static struct pointer_map_t *local_specializations;
-
 /* True if we've recursed into fn_type_unification too many times.  */
 static bool excessive_deduction_depth;
 

libstdc++-v3/testsuite/20_util/bind/57899.cc

+// Copyright (C) 2010-2014 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// 20.7.11 Function template bind
+
+// PR c++/57899
+// { dg-do compile }
+// { dg-options -std=c++11 }
+
+#include <functional>
+using std::bind;
+using std::placeholders::_1;
+
+struct S { int i; };
+
+struct P { S s; };
+
+struct get_s
+{
+  const S& operator()(const P& p) const { return p.s; }
+} gs;
+
+int gi(const S& s) { return s.i; }
+
+bool cmp(int, int) { return true; }
+
+int main()
+{
+  P p{};
+  auto f1 = bind(gs, _1);
+  auto f2 = bind(gi, f1);
+  auto f3 = bind(cmp, f2, 5);
+  f3(p);
+}