55 lines
1.9 KiB
Markdown
55 lines
1.9 KiB
Markdown
;; Predicate definitions for Moxie
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;; Copyright (C) 2009 Free Software Foundation, Inc.
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;; Contributed by Anthony Green <green@moxielogic.com>
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;; This file is part of GCC.
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;; GCC is free software; you can redistribute it and/or modify it
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;; under the terms of the GNU General Public License as published
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;; by the Free Software Foundation; either version 3, or (at your
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;; option) any later version.
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;; GCC is distributed in the hope that it will be useful, but WITHOUT
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;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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;; License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GCC; see the file COPYING3. If not see
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;; <http://www.gnu.org/licenses/>.
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;; -------------------------------------------------------------------------
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;; Predicates
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;; -------------------------------------------------------------------------
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;; Nonzero if OP can be source of a simple move operation.
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(define_predicate "moxie_general_movsrc_operand"
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(match_code "mem,const_int,reg,subreg,symbol_ref,label_ref,const")
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{
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/* Any (MEM LABEL_REF) is OK. That is a pc-relative load. */
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if (MEM_P (op) && GET_CODE (XEXP (op, 0)) == LABEL_REF)
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return 1;
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if (MEM_P (op)
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&& GET_CODE (XEXP (op, 0)) == PLUS
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&& GET_CODE (XEXP (XEXP (op, 0), 0)) == REG
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&& GET_CODE (XEXP (XEXP (op, 0), 1)) == CONST)
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return 1;
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return general_operand (op, mode);
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})
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;; Nonzero if OP can be an operand to an add/inc/dec instruction.
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(define_predicate "moxie_add_operand"
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(ior (match_code "reg")
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(and (match_code "const_int")
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(match_test "IN_RANGE (INTVAL (op), -255, 255)"))))
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;; Nonzero if OP can be an operand to an sub/dec instruction.
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(define_predicate "moxie_sub_operand"
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(ior (match_code "reg")
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(and (match_code "const_int")
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(match_test "IN_RANGE (INTVAL (op), 0, 255)")))) |