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      1 ;; Constraint definitions for Tilera TILE-Gx.
      2 ;; Copyright (C) 2011-2022 Free Software Foundation, Inc.
      3 ;; Contributed by Walter Lee (walt (a] tilera.com)
      4 ;;
      5 ;; This file is part of GCC.
      6 ;;
      7 ;; GCC is free software; you can redistribute it and/or modify it
      8 ;; under the terms of the GNU General Public License as published
      9 ;; by the Free Software Foundation; either version 3, or (at your
     10 ;; option) any later version.
     11 ;;
     12 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
     13 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     14 ;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
     15 ;; License for more details.
     16 ;;
     17 ;; You should have received a copy of the GNU General Public License
     18 ;; along with GCC; see the file COPYING3.  If not see
     19 ;; <http://www.gnu.org/licenses/>.
     20 
     21 (define_register_constraint "R00" "R0_REGS"  "r0")
     22 (define_register_constraint "R01" "R1_REGS"  "r1")
     23 (define_register_constraint "R02" "R2_REGS"  "r2")
     24 (define_register_constraint "R03" "R3_REGS"  "r3")
     25 (define_register_constraint "R04" "R4_REGS"  "r4")
     26 (define_register_constraint "R05" "R5_REGS"  "r5")
     27 (define_register_constraint "R06" "R6_REGS"  "r6")
     28 (define_register_constraint "R07" "R7_REGS"  "r7")
     29 (define_register_constraint "R08" "R8_REGS"  "r8")
     30 (define_register_constraint "R09" "R9_REGS"  "r9")
     31 (define_register_constraint "R10" "R10_REGS" "r10")
     32 
     33 (define_constraint "I"
     34   "A signed 8 bit constant"
     35   (and (match_code "const_int")
     36        (match_test "ival >= -128 && ival <= 127")))
     37 
     38 (define_constraint "J"
     39   "Signed 16-bit integer constant"
     40   (and (match_code "const_int")
     41        (match_test "ival >= -32768 && ival <= 32767")))
     42 
     43 (define_constraint "K"
     44   "Unsigned 16-bit integer constant"
     45   (and (match_code "const_int")
     46        (match_test "(ival >= 0 && ival <= 65535)")))
     47 
     48 (define_constraint "L"
     49   "Integer constant that fits in one signed byte when incremented"
     50   (and (match_code "const_int")
     51        (match_test "ival >= -129 && ival <= 126")))
     52 
     53 (define_constraint "M"
     54   "A bit mask suitable for 'bfins'"
     55   (and (match_code "const_int")
     56        (match_test "tilegx_bitfield_operand_p (ival, NULL, NULL)")))
     57 
     58 (define_constraint "N"
     59   "Integer constant that is a byte tiled out eight times"
     60   (and (match_code "const_int")
     61        (match_test "(ival == (ival & 0xFF) * 0x0101010101010101LL)")))
     62 
     63 (define_constraint "O"
     64  "The integer zero constant"
     65  (and (match_code "const_int")
     66       (match_test "ival == 0")))
     67 
     68 (define_constraint "P"
     69   "Integer constant that is a sign-extended byte tiled out as four shorts"
     70   (and (match_code "const_int")
     71        (match_test "(ival
     72                      == ((trunc_int_for_mode (ival, QImode) & 0xFFFF)
     73                          * 0x0001000100010001LL))")))
     74 
     75 (define_constraint "Q"
     76   "Integer constant that fits in one signed byte when incremented, but not -1"
     77   (and (match_code "const_int")
     78        (match_test "ival >= -129 && ival <= 126 && ival != -1")))
     79 
     80 (define_constraint "S"
     81   "Integer constant that has all 1 bits consecutive and starting at bit 0"
     82   (and (match_code "const_int")
     83        (match_test "ival != 0 && (ival & (ival + 1)) == 0")))
     84 
     85 (define_constraint "T"
     86   "An unspec wrapper for a symbolc operand"
     87   (ior (match_operand 0 "const_last_symbolic_operand")
     88        (match_operand 0 "const_symbolic_operand")))
     89 
     90 (define_memory_constraint "U"
     91   "Non-auto-incrementing memory"
     92   (and (match_code "mem")
     93        (match_test "GET_RTX_CLASS (GET_CODE (XEXP (op, 0))) != RTX_AUTOINC")))
     94 
     95 (define_constraint "W"
     96   "An 8-element vector constant with identical elements"
     97   (and (match_code "const_vector")
     98        (match_test "CONST_VECTOR_NUNITS (op) == 8")
     99        (match_test "const_vec_duplicate_p (op)")))
    100 
    101 (define_constraint "Y"
    102   "A 4-element vector constant with identical elements"
    103   (and (match_code "const_vector")
    104        (match_test "CONST_VECTOR_NUNITS (op) == 4")
    105        (match_test "const_vec_duplicate_p (op)")))
    106 
    107 (define_constraint "Z0"
    108  "The integer constant 0xffffffff"
    109  (and (match_code "const_int")
    110       (match_test "ival == 0xffffffff")))
    111 
    112 (define_constraint "Z1"
    113  "The integer constant 0xffffffff00000000"
    114  (and (match_code "const_int")
    115       (match_test "ival == (HOST_WIDE_INT)0xffffffff00000000LL")))
    116