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      1 ;; Constraint definitions for V850.
      2 ;; Copyright (C) 2011-2022 Free Software Foundation, Inc.
      3 ;;
      4 ;; This file is part of GCC.
      5 ;;
      6 ;; GCC is free software; you can redistribute it and/or modify
      7 ;; it under the terms of the GNU General Public License as published by
      8 ;; the Free Software Foundation; either version 3, or (at your option)
      9 ;; any later version.
     10 ;;
     11 ;; GCC is distributed in the hope that it will be useful,
     12 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14 ;; GNU General Public License for more details.
     15 ;;
     16 ;; You should have received a copy of the GNU General Public License
     17 ;; along with GCC; see the file COPYING3.  If not see
     18 ;; <http://www.gnu.org/licenses/>.
     19 
     20 (define_register_constraint "e" "EVEN_REGS"
     21   "@internal")
     22 
     23 ;; Integer constraints.
     24 (define_constraint "I"
     25   "Integer constant 0."
     26   (and (match_code "const_int")
     27        (match_test "ival == 0")))
     28 
     29 (define_constraint "J"
     30   "A signed 5-bit immediate."
     31   (and (match_code "const_int")
     32        (match_test "ival >= -16 && ival <= 15")))
     33 
     34 (define_constraint "K"
     35   "A signed 16-bit immediate."
     36   (and (match_code "const_int")
     37        (match_test "ival >= -32768 && ival <= 32767")))
     38 
     39 (define_constraint "L"
     40   "A valid constant for a movhi instruction."
     41   (and (match_code "const_int")
     42        (ior (match_test "(ival | 0x7fff0000) == 0x7fff0000")
     43 	    (match_test "(ival | 0x7fff0000) + 0x10000 == 0"))))
     44 
     45 (define_constraint "M"
     46   "An unsigned 16-bit immediate."
     47   (and (match_code "const_int")
     48        (match_test "ival >= 0 && ival <= 65535")))
     49 
     50 (define_constraint "N"
     51   "An unsigned 5-bit immediate in shift instructions."
     52   (and (match_code "const_int")
     53        (match_test "ival >= 0 && ival <= 31")))
     54 
     55 (define_constraint "O"
     56   "A signed 9-bit immediate for word multiply instructions."
     57   (and (match_code "const_int")
     58        (match_test "ival >= -255 && ival <= 255")))
     59 
     60 (define_constraint "P"
     61   "@internal"
     62   (and (match_code "const_int")
     63        (match_test "0")))
     64 
     65 ;; Floating-point constraints.
     66 (define_constraint "G"
     67   "A zero of some form."
     68   (and (match_code "const_double")
     69        (ior (match_test "GET_MODE_CLASS (mode) == MODE_FLOAT")
     70 	    (match_test "GET_MODE_CLASS (mode) == MODE_INT"))
     71        (match_test "op == CONST0_RTX (mode)")))
     72 
     73 (define_constraint "H"
     74   "@internal"
     75   (and (match_code "const_double")
     76        (match_test "0")))
     77 
     78 ;;; Extra constraints.
     79 (define_memory_constraint "Q"
     80   "A memory address that does not contain a symbol address."
     81   (and (match_code "mem")
     82        (match_test "ep_memory_operand (op, mode, FALSE)")))
     83 
     84 (define_constraint "R"
     85   "@internal"
     86   (match_test "special_symbolref_operand (op, VOIDmode)"))
     87 
     88 (define_constraint "S"
     89   "@internal"
     90   (and (match_code "symbol_ref")
     91        (match_test "!SYMBOL_REF_ZDA_P (op)")))
     92 
     93 (define_constraint "T"
     94   "@internal"
     95   (match_test "ep_memory_operand (op, mode, TRUE)"))
     96 
     97 (define_constraint "U"
     98   "@internal"
     99   (ior (and (match_code "symbol_ref")
    100 	    (match_test "SYMBOL_REF_ZDA_P (op)"))
    101        (and (match_code "const")
    102 	    (match_test "GET_CODE (XEXP (op, 0)) == PLUS")
    103 	    (match_test "GET_CODE (XEXP (XEXP (op, 0), 0)) == SYMBOL_REF")
    104 	    (match_test "SYMBOL_REF_ZDA_P (XEXP (XEXP (op, 0), 0))"))))
    105 
    106 (define_constraint "W"
    107   "@internal"
    108   (match_test "disp23_operand (op, VOIDmode)"))
    109