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;; Constraint definitions for the MN10300.
;; Copyright (C) 2007, 2008 Free Software Foundation, Inc.
;;
;; 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/>.
(define_register_constraint "d" "DATA_REGS"
"A data register.")
(define_register_constraint "a" "ADDRESS_REGS"
"An address register.")
;; This can be used for QI/HImode memory operations, and most arithmetic.
;; AM33 supports these on all registers, where MN103 needs DATA_REGS.
(define_register_constraint "D" "TARGET_AM33 ? GENERAL_REGS : DATA_REGS"
"A general register for AM33, and a data register otherwise.")
;; Similarly for ADDRESS_REGS vs GENERAL_REGS.
(define_register_constraint "A" "TARGET_AM33 ? GENERAL_REGS : ADDRESS_REGS"
"A general register for AM33, and an address register otherwise.")
(define_register_constraint "y" "SP_REGS"
"An SP register (if available).")
(define_register_constraint "z" "MDR_REGS"
"The MDR register.")
(define_register_constraint "x" "TARGET_AM33 ? EXTENDED_REGS : NO_REGS"
"An extended register.")
(define_register_constraint "f" "TARGET_AM33_2 ? FP_REGS : NO_REGS"
"A floating point register.")
(define_register_constraint "c" "TARGET_AM33_2 ? FP_ACC_REGS : NO_REGS"
"A floating point accumulator register.")
(define_memory_constraint "Q"
"@internal"
(and (match_code "mem")
(match_test "!CONSTANT_ADDRESS_P (XEXP (op, 0))")))
(define_constraint "S"
"@internal"
(if_then_else (match_test "flag_pic")
(and (match_test "GET_CODE (op) == UNSPEC")
(ior (match_test "XINT (op, 1) == UNSPEC_PLT")
(match_test "XINT (op, 1) == UNSPEC_PIC")
(match_test "XINT (op, 1) == UNSPEC_GOTSYM_OFF")))
(match_test "GET_CODE (op) == SYMBOL_REF")))
;; Integer constraints
(define_constraint "I"
"An integer zero."
(and (match_code "const_int")
(match_test "ival == 0")))
(define_constraint "J"
"An integer one."
(and (match_code "const_int")
(match_test "ival == 1")))
(define_constraint "K"
"An integer two."
(and (match_code "const_int")
(match_test "ival == 2")))
(define_constraint "L"
"An integer four."
(and (match_code "const_int")
(match_test "ival == 4")))
(define_constraint "M"
"An integer three."
(and (match_code "const_int")
(match_test "ival == 3")))
(define_constraint "N"
"An integer of either 255 or 65535."
(and (match_code "const_int")
(ior (match_test "ival == 255")
(match_test "ival == 65535"))))
(define_constraint "O"
"An integer between -8 and +7 inclusive."
(and (match_code "const_int")
(and (match_test "ival >= -8")
(match_test "ival <= 7"))))
;; Floating-point constraints
(define_constraint "G"
"Floating-point zero."
(and (match_code "const_double")
(match_test "op == CONST0_RTX (mode)")))
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