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diff --git a/gcc-4.9/gcc/config/moxie/constraints.md b/gcc-4.9/gcc/config/moxie/constraints.md
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+;; Constraint definitions for Moxie
+;; Copyright (C) 2009-2014 Free Software Foundation, Inc.
+;; Contributed by Anthony Green <green@moxielogic.com>
+
+;; This file is part of GCC.
+
+;; GCC 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.
+
+;; GCC 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 GCC; see the file COPYING3.  If not see
+;; <http://www.gnu.org/licenses/>.
+
+;; -------------------------------------------------------------------------
+;; Constraints
+;; -------------------------------------------------------------------------
+
+(define_constraint "A"
+  "An absolute address."
+  (and (match_code "mem")
+       (ior (match_test "GET_CODE (XEXP (op, 0)) == SYMBOL_REF")
+	    (match_test "GET_CODE (XEXP (op, 0)) == LABEL_REF")
+	    (match_test "GET_CODE (XEXP (op, 0)) == CONST"))))
+
+(define_constraint "B"
+  "An offset address."
+  (and (match_code "mem")
+       (match_test "GET_CODE (XEXP (op, 0)) == PLUS")))
+
+(define_constraint "W"
+  "A register indirect memory operand."
+  (and (match_code "mem")
+       (match_test "REG_P (XEXP (op, 0))
+		    && REGNO_OK_FOR_BASE_P (REGNO (XEXP (op, 0)))")))
+
+(define_constraint "O"
+  "The constant zero"
+  (and (match_code "const_int")
+       (match_test "ival == 0")))
+
+(define_constraint "I"
+  "An 8-bit constant (0..255)"
+  (and (match_code "const_int")
+       (match_test "ival >= 0 && ival <= 255")))
+
+(define_constraint "N"
+  "A constant -(0..255)"
+  (and (match_code "const_int")
+       (match_test "ival >= -255 && ival <= 0")))