;; Constraint definitions for Moxie ;; Copyright (C) 2009-2021 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 “moxie_offset_address_p (op)”)))

(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”)))