57 lines
1.9 KiB
Markdown
57 lines
1.9 KiB
Markdown
|
;; Constraint definitions for Moxie
|
||
|
|
;; Copyright (C) 2009 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")))
|