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1 /* Definitions of target machine for GNU compiler.
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2 Renesas H8/300 version
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3 Copyright (C) 2000, 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
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4 Contributed by Steve Chamberlain (sac@cygnus.com),
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5 Jim Wilson (wilson@cygnus.com), and Doug Evans (dje@cygnus.com).
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6
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7 This file is part of GCC.
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8
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9 GCC is free software; you can redistribute it and/or modify
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10 it under the terms of the GNU General Public License as published by
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11 the Free Software Foundation; either version 3, or (at your option)
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12 any later version.
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13
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14 GCC is distributed in the hope that it will be useful,
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15 but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 GNU General Public License for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with GCC; see the file COPYING3. If not see
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21 <http://www.gnu.org/licenses/>. */
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22
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23 #ifndef GCC_H8300_PROTOS_H
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24 #define GCC_H8300_PROTOS_H
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25
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26 /* Declarations for functions used in insn-output.c. */
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27 #ifdef RTX_CODE
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28 extern unsigned int compute_mov_length (rtx *);
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29 extern const char *output_plussi (rtx *);
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30 extern unsigned int compute_plussi_length (rtx *);
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31 extern int compute_plussi_cc (rtx *);
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32 extern const char *output_a_shift (rtx *);
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33 extern unsigned int compute_a_shift_length (rtx, rtx *);
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34 extern int compute_a_shift_cc (rtx, rtx *);
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35 extern const char *output_a_rotate (enum rtx_code, rtx *);
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36 extern unsigned int compute_a_rotate_length (rtx *);
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37 extern const char *output_simode_bld (int, rtx[]);
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38 extern void print_operand_address (FILE *, rtx);
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39 extern void print_operand (FILE *, rtx, int);
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40 extern void final_prescan_insn (rtx, rtx *, int);
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41 extern int h8300_expand_movsi (rtx[]);
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42 extern void notice_update_cc (rtx, rtx);
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43 extern const char *output_logical_op (enum machine_mode, rtx *);
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44 extern unsigned int compute_logical_op_length (enum machine_mode,
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45 rtx *);
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46 extern int compute_logical_op_cc (enum machine_mode, rtx *);
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47 extern void h8300_expand_branch (enum rtx_code, rtx);
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48 extern bool expand_a_shift (enum machine_mode, int, rtx[]);
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49 extern int h8300_shift_needs_scratch_p (int, enum machine_mode);
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50 extern int expand_a_rotate (rtx[]);
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51 extern int fix_bit_operand (rtx *, enum rtx_code);
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52 extern int h8300_adjust_insn_length (rtx, int);
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53 extern void split_adds_subs (enum machine_mode, rtx[]);
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54
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55 extern int h8300_eightbit_constant_address_p (rtx);
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56 extern int h8300_tiny_constant_address_p (rtx);
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57 extern int byte_accesses_mergeable_p (rtx, rtx);
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58 extern int same_cmp_preceding_p (rtx);
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59 extern int same_cmp_following_p (rtx);
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60
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61 extern int h8300_legitimate_constant_p (rtx);
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62 extern int h8300_legitimate_address_p (enum machine_mode, rtx, int);
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63
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64 /* Used in builtins.c */
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65 extern rtx h8300_return_addr_rtx (int, rtx);
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66
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67 /* Classifies an h8sx shift operation.
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68
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69 H8SX_SHIFT_NONE
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70 The shift cannot be done in a single instruction.
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71
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72 H8SX_SHIFT_UNARY
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73 The shift is effectively a unary operation. The instruction will
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74 allow any sort of destination operand and have a format similar
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75 to neg and not. This is true of certain power-of-2 shifts.
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76
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77 H8SX_SHIFT_BINARY
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78 The shift is a binary operation. The destination must be a
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79 register and the source can be a register or a constant. */
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80 enum h8sx_shift_type {
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81 H8SX_SHIFT_NONE,
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82 H8SX_SHIFT_UNARY,
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83 H8SX_SHIFT_BINARY
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84 };
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85
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86 extern enum h8sx_shift_type h8sx_classify_shift (enum machine_mode, enum rtx_code, rtx);
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87 extern int h8300_ldm_stm_parallel (rtvec, int, int);
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88 #endif /* RTX_CODE */
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89
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90 #ifdef TREE_CODE
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91 extern struct rtx_def *function_arg (CUMULATIVE_ARGS *,
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92 enum machine_mode, tree, int);
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93 extern int h8300_funcvec_function_p (tree);
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94 extern int h8300_eightbit_data_p (tree);
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95 extern int h8300_tiny_data_p (tree);
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96 #endif /* TREE_CODE */
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97
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98 extern void h8300_init_once (void);
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99 extern int h8300_can_use_return_insn_p (void);
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100 extern void h8300_expand_prologue (void);
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101 extern void h8300_expand_epilogue (void);
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102 extern int h8300_current_function_interrupt_function_p (void);
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103 extern int h8300_initial_elimination_offset (int, int);
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104 extern int h8300_regs_ok_for_stm (int, rtx[]);
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105 extern int h8300_hard_regno_rename_ok (unsigned int, unsigned int);
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106 extern int h8300_hard_regno_nregs (int, enum machine_mode);
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107 extern int h8300_hard_regno_mode_ok (int, enum machine_mode);
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108
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109 struct cpp_reader;
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110 extern void h8300_pr_interrupt (struct cpp_reader *);
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111 extern void h8300_pr_saveall (struct cpp_reader *);
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112 extern enum reg_class h8300_reg_class_from_letter (int);
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113 extern rtx h8300_get_index (rtx, enum machine_mode mode, int *);
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114 extern unsigned int h8300_insn_length_from_table (rtx, rtx *);
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115 extern const char * output_h8sx_shift (rtx *, int, int);
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116 extern bool h8300_operands_match_p (rtx *);
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117 extern bool h8sx_mergeable_memrefs_p (rtx, rtx);
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118 extern bool h8sx_emit_movmd (rtx, rtx, rtx, HOST_WIDE_INT);
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119 extern void h8300_swap_into_er6 (rtx);
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120 extern void h8300_swap_out_of_er6 (rtx);
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121
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122 #endif /* ! GCC_H8300_PROTOS_H */
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