1;; Constraint definitions for Moxie 2;; Copyright (C) 2009-2020 Free Software Foundation, Inc. 3;; Contributed by Anthony Green <green@moxielogic.com> 4 5;; This file is part of GCC. 6 7;; GCC is free software; you can redistribute it and/or modify it 8;; under the terms of the GNU General Public License as published 9;; by the Free Software Foundation; either version 3, or (at your 10;; option) any later version. 11 12;; GCC is distributed in the hope that it will be useful, but WITHOUT 13;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 15;; License for more details. 16 17;; You should have received a copy of the GNU General Public License 18;; along with GCC; see the file COPYING3. If not see 19;; <http://www.gnu.org/licenses/>. 20 21;; ------------------------------------------------------------------------- 22;; Constraints 23;; ------------------------------------------------------------------------- 24 25(define_constraint "A" 26 "An absolute address." 27 (and (match_code "mem") 28 (ior (match_test "GET_CODE (XEXP (op, 0)) == SYMBOL_REF") 29 (match_test "GET_CODE (XEXP (op, 0)) == LABEL_REF") 30 (match_test "GET_CODE (XEXP (op, 0)) == CONST")))) 31 32(define_constraint "B" 33 "An offset address." 34 (and (match_code "mem") 35 (match_test "moxie_offset_address_p (op)"))) 36 37(define_constraint "W" 38 "A register indirect memory operand." 39 (and (match_code "mem") 40 (match_test "REG_P (XEXP (op, 0)) 41 && REGNO_OK_FOR_BASE_P (REGNO (XEXP (op, 0)))"))) 42 43(define_constraint "O" 44 "The constant zero" 45 (and (match_code "const_int") 46 (match_test "ival == 0"))) 47 48(define_constraint "I" 49 "An 8-bit constant (0..255)" 50 (and (match_code "const_int") 51 (match_test "ival >= 0 && ival <= 255"))) 52 53(define_constraint "N" 54 "A constant -(0..255)" 55 (and (match_code "const_int") 56 (match_test "ival >= -255 && ival <= 0"))) 57