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;; Constraint definitions for V850.

;; Copyright (C) 2011 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

;; .

(define_register_constraint "e" "EVEN_REGS"

  "@internal")

;; Integer constraints.

(define_constraint "I"

  "Integer constant 0."

  (and (match_code "const_int")

       (match_test "ival == 0")))

(define_constraint "J"

  "A signed 5-bit immediate."

  (and (match_code "const_int")

       (match_test "ival >= -16 && ival <= 15")))

(define_constraint "K"

  "A signed 16-bit immediate."

  (and (match_code "const_int")

       (match_test "ival >= -32768 && ival <= 32767")))

(define_constraint "L"

  "A valid constant for a movhi instruction."

  (and (match_code "const_int")

       (ior (match_test "(ival | 0x7fff0000) == 0x7fff0000")

            (match_test "(ival | 0x7fff0000) + 0x10000 == 0"))))

(define_constraint "M"

  "An unsigned 16-bit immediate."

  (and (match_code "const_int")

       (match_test "ival >= 0 && ival <= 65535")))

(define_constraint "N"

  "An unsigned 5-bit immediate in shift instructions."

  (and (match_code "const_int")

       (match_test "ival >= 0 && ival <= 31")))

(define_constraint "O"

  "A signed 9-bit immediate for word multiply instructions."

  (and (match_code "const_int")

       (match_test "ival >= -255 && ival <= 255")))

(define_constraint "P"

  "@internal"

  (and (match_code "const_int")

       (match_test "0")))

;; Floating-point constraints.

(define_constraint "G"

  "A zero of some form."

  (and (match_code "const_double")

       (ior (match_test "GET_MODE_CLASS (mode) == MODE_FLOAT")

            (match_test "GET_MODE_CLASS (mode) == MODE_INT"))

       (match_test "op == CONST0_RTX (mode)")))

(define_constraint "H"

  "@internal"

  (and (match_code "const_double")

       (match_test "0")))

;;; Extra constraints.

(define_constraint "Q"

  "A memory address that does not contain a symbol address."

  (and (match_code "mem")

       (match_test "ep_memory_operand (op, mode, FALSE)")))

(define_constraint "R"

  "@internal"

  (match_test "special_symbolref_operand (op, VOIDmode)"))

(define_constraint "S"

  "@internal"

  (and (match_code "symbol_ref")

       (match_test "!SYMBOL_REF_ZDA_P (op)")))

(define_constraint "T"

  "@internal"

  (match_test "ep_memory_operand (op, mode, TRUE)"))

(define_constraint "U"

  "@internal"

  (ior (and (match_code "symbol_ref")

            (match_test "SYMBOL_REF_ZDA_P (op)"))

       (and (match_code "const")

            (match_test "GET_CODE (XEXP (op, 0)) == PLUS")

            (match_test "GET_CODE (XEXP (XEXP (op, 0), 0)) == SYMBOL_REF")

            (match_test "SYMBOL_REF_ZDA_P (XEXP (XEXP (op, 0), 0))"))))

(define_constraint "W"

  "@internal"

  (match_test "disp23_operand (op, VOIDmode)"))