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      1 ;; Machine Descriptions for R8C/M16C/M32C
      2 ;; Copyright (C) 2005-2022 Free Software Foundation, Inc.
      3 ;; Contributed by Red Hat.
      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_constants
     22   [(R0_REGNO 0)
     23    (R2_REGNO 1)
     24    (R1_REGNO 2)
     25    (R3_REGNO 3)
     26 
     27    (A0_REGNO 4)
     28    (A1_REGNO 5)
     29    (SB_REGNO 6)
     30    (FB_REGNO 7)
     31 
     32    (SP_REGNO 8)
     33    (PC_REGNO 9)
     34    (FLG_REGNO 10)
     35    (MEM0_REGNO 12)
     36    (MEM7_REGNO 19)
     37    ])
     38 
     39 (define_constants
     40   [(UNS_PROLOGUE_END 1)
     41    (UNS_EPILOGUE_START 2)
     42    (UNS_EH_EPILOGUE 3)
     43    (UNS_PUSHM 4)
     44    (UNS_POPM 5)
     45    (UNS_SMOVF 6)
     46    (UNS_SSTR 7)
     47    (UNS_SCMPU 8)
     48    (UNS_SMOVU 9)
     49    (UNS_FSETB 10)
     50    (UNS_FREIT 11)
     51    ])
     52 
     53 ;; n = no change, x = clobbered.  The first 16 values are chosen such
     54 ;; that the enum has one bit set for each flag.
     55 (define_attr "flags" "x,c,z,zc,s,sc,sz,szc,o,oc,oz,ozc,os,osc,osz,oszc,n" (const_string "n"))
     56 (define_asm_attributes [(set_attr "flags" "x")])
     57 
     58 (define_mode_iterator QHI [QI HI])
     59 (define_mode_iterator HPSI [(HI "TARGET_A16") (PSI "TARGET_A24")])
     60 (define_mode_iterator QHPSI [QI HI (PSI "TARGET_A24")])
     61 (define_mode_iterator QHSI [QI HI (SI "TARGET_A24")])
     62 (define_mode_attr bwl [(QI "b") (HI "w") (PSI "l") (SI "l")])
     63 
     64 (define_code_iterator eqne_cond [eq ne])
     65 
     66 
     67 (define_insn "nop"
     68   [(const_int 0)]
     69   ""
     70   "nop"
     71   [(set_attr "flags" "n")]
     72 )
     73 
     74 (define_insn "no_insn"
     75   [(const_int 1)]
     76   ""
     77   ""
     78   [(set_attr "flags" "n")]
     79 )
     80