1  /* Definitions of target machine for GNU compiler, for the pdp-11
       2     Copyright (C) 2000-2023 Free Software Foundation, Inc.
       3     Contributed by Michael K. Gschwind (mike@vlsivie.tuwien.ac.at).
       4  
       5  This file is part of GCC.
       6  
       7  GCC is free software; you can redistribute it and/or modify
       8  it under the terms of the GNU General Public License as published by
       9  the Free Software Foundation; either version 3, or (at your option)
      10  any later version.
      11  
      12  GCC is distributed in the hope that it will be useful,
      13  but WITHOUT ANY WARRANTY; without even the implied warranty of
      14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      15  GNU General Public 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  /* declarations */
      22  #ifdef RTX_CODE
      23  extern int simple_memory_operand (rtx, machine_mode);
      24  extern int no_side_effect_operand (rtx, machine_mode);
      25  extern int legitimate_const_double_p (rtx);
      26  extern void notice_update_cc_on_set (rtx, rtx);
      27  extern void output_addr_const_pdp11 (FILE *, rtx);
      28  extern const char *output_move_multiple (rtx *);
      29  extern const char *output_jump (rtx *, int, int);
      30  extern void print_operand_address (FILE *, rtx);
      31  typedef enum { no_action, dec_before, inc_after } pdp11_action;
      32  typedef enum { little, either, big } pdp11_partorder;
      33  extern bool pdp11_expand_operands (rtx *, rtx [][2], int, int,
      34  				   pdp11_action *, pdp11_partorder);
      35  extern int pdp11_initial_elimination_offset (int, int);
      36  extern enum reg_class pdp11_regno_reg_class (int);
      37  extern bool pdp11_fixed_cc_regs (unsigned int *, unsigned int *);
      38  extern machine_mode pdp11_cc_mode (enum rtx_code, rtx, rtx);
      39  extern bool pdp11_expand_shift (rtx *, rtx (*) (rtx, rtx, rtx),
      40  				rtx (*) (rtx, rtx, rtx));
      41  extern const char * pdp11_assemble_shift (rtx *, machine_mode, int);
      42  extern int pdp11_shift_length (rtx *, machine_mode, int, bool);
      43  extern int pdp11_cmp_length (rtx *, int);
      44  extern bool pushpop_regeq (rtx, int);
      45  extern bool pdp11_small_shift (int);
      46  
      47  #endif /* RTX_CODE */
      48  
      49  extern void output_ascii (FILE *, const char *, int);
      50  extern void pdp11_asm_output_var (FILE *, const char *, int, int, bool);
      51  extern void pdp11_expand_prologue (void);
      52  extern void pdp11_expand_epilogue (void);
      53  extern poly_int64 pdp11_push_rounding (poly_int64);
      54  extern void pdp11_gen_int_label (char *, const char *, int);
      55  extern void pdp11_output_labelref (FILE *, const char *);
      56  extern void pdp11_output_def (FILE *, const char *, const char *);
      57  extern void pdp11_output_addr_vec_elt (FILE *, int);