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annotate gcc/config/rx/constraints.md @ 55:77e2b8dfacca gcc-4.4.5

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update it from 4.4.3 to 4.5.0
author ryoma <e075725@ie.u-ryukyu.ac.jp>
date Fri, 12 Feb 2010 23:39:51 +0900
parents
children f6334be47118
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55
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
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1 ;; Constraint definitions for Renesas RX.
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2 ;; Copyright (C) 2008, 2009 Free Software Foundation, Inc.
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3 ;; Contributed by Red Hat.
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4 ;;
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5 ;; This file is part of GCC.
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6 ;;
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7 ;; GCC is free software; you can redistribute it and/or modify
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8 ;; it under the terms of the GNU General Public License as published by
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9 ;; the Free Software Foundation; either version 3, or (at your option)
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10 ;; any later version.
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11 ;;
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12 ;; GCC is distributed in the hope that it will be useful,
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13 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 ;; GNU General Public License for more details.
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16 ;;
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17 ;; You should have received a copy of the GNU General Public License
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18 ;; along with GCC; see the file COPYING3. If not see
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19 ;; <http://www.gnu.org/licenses/>.
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20
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21
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22 (define_constraint "Symbol"
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23 "@internal Constraint on the type of rtx allowed in call insns"
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24 (match_test "GET_CODE (op) == SYMBOL_REF")
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25 )
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26
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27
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28 (define_constraint "Int08"
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29 "@internal A signed or unsigned 8-bit immediate value"
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30 (and (match_code "const_int")
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31 (match_test "IN_RANGE (ival, (-1 << 8), (1 << 8) - 1)")
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32 )
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33 )
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34
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35 (define_constraint "Sint08"
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36 "@internal A signed 8-bit immediate value"
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37 (and (match_code "const_int")
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38 (match_test "IN_RANGE (ival, (-1 << 7), (1 << 7) - 1)")
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39 )
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40 )
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41
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42 (define_constraint "Sint16"
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43 "@internal A signed 16-bit immediate value"
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44 (and (match_code "const_int")
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45 (match_test "IN_RANGE (ival, (-1 << 15), (1 << 15) - 1)")
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46 )
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47 )
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48
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49 (define_constraint "Sint24"
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50 "@internal A signed 24-bit immediate value"
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51 (and (match_code "const_int")
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52 (match_test "IN_RANGE (ival, (-1 << 23), (1 << 23) - 1)")
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53 )
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54 )
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55
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56 ;; This constraint is used by the SUBSI3 pattern because the
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57 ;; RX SUB instruction can only take a 4-bit unsigned integer
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58 ;; value. Also used by the MVTIPL instruction.
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59 (define_constraint "Uint04"
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60 "@internal An unsigned 4-bit immediate value"
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61 (and (match_code "const_int")
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62 (match_test "IN_RANGE (ival, 0, 15)")
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63 )
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64 )
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65
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66 ;; This is used in arithmetic and logic instructions for
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67 ;; a source operand that lies in memory and which satisfies
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68 ;; rx_restricted_memory_address().
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69
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70 (define_memory_constraint "Q"
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71 "A MEM which only uses REG or REG+INT addressing."
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72 (and (match_code "mem")
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73 (ior (match_code "reg" "0")
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74 (and (match_code "plus" "0")
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75 (and (match_code "reg,subreg" "00")
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76 (match_code "const_int" "01")
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77 )
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78 )
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79 )
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80 )
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81 )