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;; Predicate 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/>.
;; -------------------------------------------------------------------------
;; Predicates
;; -------------------------------------------------------------------------
;; Nonzero if OP can be source of a simple move operation.
(define_predicate "moxie_general_movsrc_operand"
(match_code "mem,const_int,reg,subreg,symbol_ref,label_ref,const")
{
/* Any (MEM LABEL_REF) is OK. That is a pc-relative load. */
if (MEM_P (op) && GET_CODE (XEXP (op, 0)) == LABEL_REF)
return 1;
if (MEM_P (op)
&& GET_CODE (XEXP (op, 0)) == PLUS
&& GET_CODE (XEXP (XEXP (op, 0), 0)) == REG
&& GET_CODE (XEXP (XEXP (op, 0), 1)) == CONST)
return 1;
return general_operand (op, mode);
})
;; Nonzero if OP can be an operand to an add/inc/dec instruction.
(define_predicate "moxie_add_operand"
(ior (match_code "reg")
(and (match_code "const_int")
(match_test "IN_RANGE (INTVAL (op), -255, 255)"))))
;; Nonzero if OP can be an operand to an sub/dec instruction.
(define_predicate "moxie_sub_operand"
(ior (match_code "reg")
(and (match_code "const_int")
(match_test "IN_RANGE (INTVAL (op), 0, 255)"))))
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