gcc/config/h8300/h8300-protos.h

   1 /* Definitions of target machine for GNU compiler.
   2    Renesas H8/300 version
   3    Copyright (C) 2000-2022 Free Software Foundation, Inc.
   4    Contributed by Steve Chamberlain (sac@cygnus.com),
   5    Jim Wilson (wilson@cygnus.com), and Doug Evans (dje@cygnus.com).
   6
   7 This file is part of GCC.
   8
   9 GCC is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 3, or (at your option)
  12 any later version.
  13
  14 GCC is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with GCC; see the file COPYING3.  If not see
  21 <http://www.gnu.org/licenses/>.  */
  22
  23 #ifndef GCC_H8300_PROTOS_H
  24 #define GCC_H8300_PROTOS_H
  25
  26 /* Declarations for functions used in insn-output.cc.  */
  27 #ifdef RTX_CODE
  28 extern unsigned int compute_mov_length (rtx *);
  29 extern const char *output_plussi (rtx *, bool);
  30 extern unsigned int compute_plussi_length (rtx *, bool);
  31 extern const char *output_a_shift (rtx[4], rtx_code);
  32 extern unsigned int compute_a_shift_length (rtx[4], rtx_code);
  33 extern const char *output_a_rotate (enum rtx_code, rtx *);
  34 extern unsigned int compute_a_rotate_length (rtx *);
  35 extern const char *output_simode_bld (int, rtx[]);
  36 extern void final_prescan_insn (rtx_insn *, rtx *, int);
  37 extern int h8300_expand_movsi (rtx[]);
  38 extern machine_mode  h8300_select_cc_mode (RTX_CODE, rtx, rtx);
  39 extern const char *output_logical_op (machine_mode, rtx_code code,
  40                                       rtx *, rtx_insn *);
  41 extern unsigned int compute_logical_op_length (machine_mode, rtx_code,
  42                                               rtx *, rtx_insn *);
  43
  44 extern int compute_a_shift_cc (rtx *, rtx_code);
  45 #ifdef HAVE_ATTR_cc
  46 extern enum attr_cc compute_plussi_cc (rtx *);
  47 #endif
  48 extern void h8300_expand_store (rtx[]);
  49 extern bool expand_a_shift (machine_mode, enum rtx_code, rtx[]);
  50 extern int h8300_shift_needs_scratch_p (int, machine_mode, rtx_code);
  51 extern int expand_a_rotate (rtx[]);
  52 extern int fix_bit_operand (rtx *, enum rtx_code);
  53 extern int h8300_adjust_insn_length (rtx, int);
  54 extern void split_adds_subs (machine_mode, rtx[]);
  55
  56 extern int h8300_eightbit_constant_address_p (rtx);
  57 extern int h8300_tiny_constant_address_p (rtx);
  58 extern int byte_accesses_mergeable_p (rtx, rtx);
  59 extern int same_cmp_preceding_p (rtx_insn *);
  60 extern int same_cmp_following_p (rtx_insn *);
  61
  62 /* Used in builtins.cc */
  63 extern rtx h8300_return_addr_rtx (int, rtx);
  64
  65 /* Classifies an h8sx shift operation.
  66
  67    H8SX_SHIFT_NONE
  68         The shift cannot be done in a single instruction.
  69
  70    H8SX_SHIFT_UNARY
  71         The shift is effectively a unary operation.  The instruction will
  72         allow any sort of destination operand and have a format similar
  73         to neg and not.  This is true of certain power-of-2 shifts.
  74
  75    H8SX_SHIFT_BINARY
  76         The shift is a binary operation.  The destination must be a
  77         register and the source can be a register or a constant.  */
  78 enum h8sx_shift_type {
  79   H8SX_SHIFT_NONE,
  80   H8SX_SHIFT_UNARY,
  81   H8SX_SHIFT_BINARY
  82 };
  83
  84 extern enum h8sx_shift_type h8sx_classify_shift (machine_mode, enum rtx_code, rtx);
  85 extern int h8300_ldm_stm_parallel (rtvec, int, int);
  86 #endif /* RTX_CODE */
  87
  88 #ifdef TREE_CODE
  89 extern int h8300_funcvec_function_p (tree);
  90 extern int h8300_eightbit_data_p (tree);
  91 extern int h8300_tiny_data_p (tree);
  92 #endif /* TREE_CODE */
  93
  94 extern int h8300_can_use_return_insn_p (void);
  95 extern void h8300_expand_prologue (void);
  96 extern void h8300_expand_epilogue (bool);
  97 extern int h8300_current_function_interrupt_function_p (void);
  98 extern int h8300_current_function_monitor_function_p (void);
  99 extern int h8300_initial_elimination_offset (int, int);
 100 extern int h8300_regs_ok_for_stm (int, rtx[]);
 101 extern int h8300_hard_regno_rename_ok (unsigned int, unsigned int);
 102 extern bool h8300_move_ok (rtx, rtx);
 103 extern bool pre_incdec_with_reg (rtx, int);
 104
 105 struct cpp_reader;
 106 extern void h8300_pr_interrupt (struct cpp_reader *);
 107 extern void h8300_pr_saveall (struct cpp_reader *);
 108 extern enum reg_class  h8300_reg_class_from_letter (int);
 109 extern unsigned int    h8300_insn_length_from_table (rtx_insn *, rtx *);
 110 extern const char *    output_h8sx_shift (rtx *, int, int);
 111 extern bool            h8300_operands_match_p (rtx *);
 112 extern bool            h8sx_mergeable_memrefs_p (rtx, rtx);
 113 extern poly_int64      h8300_push_rounding (poly_int64);
 114
 115 #endif /* ! GCC_H8300_PROTOS_H */