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annotate gcc/config/fr30/constraints.md @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 84e7813d76e9
children
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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1 ;; Constraint definitions for the FR30.
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2 ;; Copyright (C) 2011-2020 Free Software Foundation, Inc.
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3
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4 ;; This file is part of GCC.
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5
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6 ;; GCC is free software; you can redistribute it and/or modify
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7 ;; it under the terms of the GNU General Public License as published by
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8 ;; the Free Software Foundation; either version 3, or (at your option)
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9 ;; any later version.
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10
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11 ;; GCC is distributed in the hope that it will be useful,
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12 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 ;; GNU General Public License for more details.
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15
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16 ;; You should have received a copy of the GNU General Public License
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17 ;; along with GCC; see the file COPYING3. If not see
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18 ;; <http://www.gnu.org/licenses/>.
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19
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20 ;; Register constraints.
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21 (define_register_constraint "d" "MULTIPLY_64_REG"
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22 "The MDH,MDL register pair as used by MUL and MULU.")
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23
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24 (define_register_constraint "e" "MULTIPLY_32_REG"
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25 "The MDL register as used by MULH and MULUH.")
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26
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27 (define_register_constraint "h" "HIGH_REGS"
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28 "Registers 8 through 15.")
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29
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30 (define_register_constraint "l" "LOW_REGS"
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31 "Registers 0 through 7.")
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32
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33 (define_register_constraint "a" "ALL_REGS"
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34 "@internal")
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35
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36 ;; Integer constraints.
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37 (define_constraint "I"
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38 "An integer in the range 0 to 15."
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39 (and (match_code "const_int")
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40 (match_test "IN_RANGE (ival, 0, 15)")))
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41
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42 (define_constraint "J"
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43 "An integer in the range -16 to -1."
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44 (and (match_code "const_int")
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45 (match_test "IN_RANGE (ival, -16, -1)")))
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46
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47 (define_constraint "K"
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48 "An integer in the range 16 to 31."
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49 (and (match_code "const_int")
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50 (match_test "IN_RANGE (ival, 16, 31)")))
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51
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52 (define_constraint "L"
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53 "An integer in the range 0 to 255."
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54 (and (match_code "const_int")
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55 (match_test "IN_RANGE (ival, 0, 255)")))
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56
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57 (define_constraint "M"
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58 "An integer in the range 0 to 1048575."
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59 (and (match_code "const_int")
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60 (match_test "IN_RANGE (ival, 0, 1048575)")))
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61
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62 (define_constraint "P"
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63 "An integer in the range -256 to 255."
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64 (and (match_code "const_int")
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65 (match_test "IN_RANGE (ival, -256, 255)")))
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66
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67 ;; Extra constraints.
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68 (define_constraint "Q"
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69 "@internal"
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70 (and (match_code "mem")
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71 (match_code "symbol_ref" "0")))