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1 /* Prototypes for exported functions defined in cr16.c
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2 Copyright (C) 2012-2017 Free Software Foundation, Inc.
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3 Contributed by KPIT Cummins Infosystems Limited.
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published
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9 by the Free Software Foundation; either version 3, or (at your
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10 option) any later version.
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11
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12 GCC is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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15 License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 #ifndef GCC_CR16_PROTOS_H
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22 #define GCC_CR16_PROTOS_H
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23
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24 /* Register usage. */
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25 extern enum reg_class cr16_regno_reg_class (int);
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26
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27 /* Passing function arguments. */
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28 extern int cr16_function_arg_regno_p (int);
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29
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30 #ifdef TREE_CODE
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31 #ifdef RTX_CODE
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32
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33 extern void cr16_init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx);
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34
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35 #endif /* RTX_CODE. */
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36 #endif /* TREE_CODE. */
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37
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38 /* Enumeration giving the various data models we support. */
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39 enum data_model_type
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40 {
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41 DM_DEFAULT, /* Default data model (in CR16C/C+ - up to 16M). */
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42 DM_NEAR, /* Near data model (in CR16C/C+ - up to 1M). */
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43 DM_FAR, /* Far data model (in CR16C+ - up to 4G)
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44 (in CR16C - up to 16M). */
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45 ILLEGAL_DM /* Illegal data model. */
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46 };
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47
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48 #ifdef RTX_CODE
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49
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50 /* Addressing Modes. */
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51 struct cr16_address
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52 {
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53 rtx base; /* Base register: Any register or register pair. */
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54 rtx index; /* Index register: If one is present. */
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55 rtx disp; /* Displacement or Absolute address. */
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56 enum data_model_type data; /* data ref type. */
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57 int code; /* Whether the address is code address.
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58 0 - data, 1 - code label, 2 - function label. */
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59 };
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60
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61 enum cr16_addrtype
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62 {
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63 CR16_INVALID,
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64 CR16_REG_REL,
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65 CR16_REGP_REL,
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66 CR16_INDEX_REGP_REL,
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67 CR16_ABSOLUTE
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68 };
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69
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70 extern void notice_update_cc (rtx);
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71 extern int cr16_operand_bit_pos (int val, int bitval);
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72 extern void cr16_decompose_const (rtx x, int *code,
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73 enum data_model_type *data,
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74 bool treat_as_const);
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75 extern enum cr16_addrtype cr16_decompose_address (rtx addr,
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76 struct cr16_address *out,
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77 bool debug_print,
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78 bool treat_as_const);
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79 extern int cr16_const_double_ok (rtx op);
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80 extern int legitimate_pic_operand_p (rtx);
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81 extern rtx legitimize_pic_address (rtx, machine_mode, rtx);
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82
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83
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84 /* Prologue/Epilogue functions. */
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85 extern int cr16_initial_elimination_offset (int, int);
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86 extern char *cr16_prepare_push_pop_string (int);
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87 extern void cr16_expand_prologue (void);
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88 extern void cr16_expand_epilogue (void);
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89 extern const char *cr16_emit_add_sub_di (rtx *, enum rtx_code);
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90 extern const char *cr16_emit_logical_di (rtx *, enum rtx_code);
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91
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92 #endif /* RTX_CODE. */
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93
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94 /* Handling the "interrupt" attribute. */
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95 extern int cr16_interrupt_function_p (void);
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96 extern bool cr16_is_data_model (enum data_model_type);
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97
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98 #endif /* Not GCC_CR16_PROTOS_H. */
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