Subversion Repositories openrisc_2011-10-31

;; Constraint definitions for Lattice Mico32 architecture.

;; Contributed by Jon Beniston 

;;

;; Copyright (C) 2009 Free Software Foundation, Inc.

;;

;; 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

;; .

(define_constraint "J"

  "The value 0."

  (and (match_code "const_int")

       (match_test "ival == 0")))

(define_constraint "K"

  "A signed 16-bit immediate in the range -32768 to 32767."

  (and (match_code "const_int")

       (match_test "IN_RANGE (ival, -32768, 32767)")))

(define_constraint "L"

  "An unsigned 16-bit immediate in the range 0 to 65535."

  (and (match_code "const_int")

       (match_test "IN_RANGE (ival, 0, 65535)")))

(define_constraint "M"

  "The value 1."

  (and (match_code "const_int")

       (match_test "ival == 1")))

(define_constraint "U"

  "A shifted signed 16-bit constant appropriate for orhi."

  (and (match_code "const_int")

       (match_test "(ival & 0xffff) == 0

                    && (ival >> 31 == -1 || ival >> 31 == 0)")))

(define_constraint "S"

  "A symbol in the small data section."

  (match_operand 0 "no_pic_small_symbol"))

(define_constraint "Y"

  "A high part of a symbol."

  (and (match_code "high")

       (ior (ior (match_code "symbol_ref" "0")

                 (match_code "label_ref" "0"))

            (match_code "const" "0"))))