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1 /* Prototypes for exported functions of Andes NDS32 cpu for GNU compiler
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2 Copyright (C) 2012-2017 Free Software Foundation, Inc.
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3 Contributed by Andes Technology Corporation.
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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
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22 /* ------------------------------------------------------------------------ */
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23
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24 /* Defining Data Structures for Per-function Information. */
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25
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26 extern void nds32_init_expanders (void);
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27
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28
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29 /* Register Classes. */
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30
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31 extern enum reg_class nds32_regno_reg_class (int);
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32
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33
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34 /* Stack Layout and Calling Conventions. */
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35
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36 /* -- Basic Stack Layout. */
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37
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38 extern rtx nds32_return_addr_rtx (int, rtx);
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39
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40 /* -- Eliminating Frame Pointer and Arg Pointer. */
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41
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42 extern HOST_WIDE_INT nds32_initial_elimination_offset (unsigned int,
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43 unsigned int);
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44
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45 /* -- Passing Arguments in Registers. */
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46
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47 extern void nds32_init_cumulative_args (CUMULATIVE_ARGS *,
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48 tree, rtx, tree, int);
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49
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50 /* -- Function Entry and Exit. */
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51
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52 extern void nds32_expand_prologue (void);
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53 extern void nds32_expand_epilogue (bool);
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54 extern void nds32_expand_prologue_v3push (void);
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55 extern void nds32_expand_epilogue_v3pop (bool);
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56
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57 /* ------------------------------------------------------------------------ */
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58
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59 /* Auxiliary functions for auxiliary macros in nds32.h. */
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60
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61 extern bool nds32_ls_333_p (rtx, rtx, rtx, machine_mode);
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62
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63 /* Auxiliary functions for expanding rtl used in nds32-multiple.md. */
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64
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65 extern rtx nds32_expand_load_multiple (int, int, rtx, rtx);
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66 extern rtx nds32_expand_store_multiple (int, int, rtx, rtx);
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67 extern int nds32_expand_movmemqi (rtx, rtx, rtx, rtx);
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68
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69 /* Auxiliary functions for multiple load/store predicate checking. */
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70
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71 extern bool nds32_valid_multiple_load_store (rtx, bool);
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72
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73 /* Auxiliary functions for stack operation predicate checking. */
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74
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75 extern bool nds32_valid_stack_push_pop_p (rtx, bool);
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76
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77 /* Auxiliary functions for bit operation detection. */
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78
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79 extern int nds32_can_use_bclr_p (int);
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80 extern int nds32_can_use_bset_p (int);
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81 extern int nds32_can_use_btgl_p (int);
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82
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83 extern int nds32_can_use_bitci_p (int);
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84
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85 /* Auxiliary function for 'Computing the Length of an Insn'. */
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86
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87 extern int nds32_adjust_insn_length (rtx_insn *, int);
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88
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89 /* Auxiliary functions for FP_AS_GP detection. */
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90
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91 extern int nds32_fp_as_gp_check_available (void);
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92
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93 /* Auxiliary functions for jump table generation. */
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94
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95 extern const char *nds32_output_casesi_pc_relative (rtx *);
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96 extern const char *nds32_output_casesi (rtx *);
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97
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98 /* Auxiliary functions to identify 16 bit addresing mode. */
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99
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100 extern enum nds32_16bit_address_type nds32_mem_format (rtx);
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101
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102 /* Auxiliary functions to output assembly code. */
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103
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104 extern const char *nds32_output_16bit_store (rtx *, int);
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105 extern const char *nds32_output_16bit_load (rtx *, int);
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106 extern const char *nds32_output_32bit_store (rtx *, int);
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107 extern const char *nds32_output_32bit_load (rtx *, int);
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108 extern const char *nds32_output_32bit_load_s (rtx *, int);
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109
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110 /* Auxiliary functions to output stack push/pop instruction. */
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111
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112 extern const char *nds32_output_stack_push (rtx);
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113 extern const char *nds32_output_stack_pop (rtx);
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114
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115 /* Auxiliary functions to check using return with null epilogue. */
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116
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117 extern int nds32_can_use_return_insn (void);
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118
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119 /* Auxiliary functions to decide output alignment or not. */
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120
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121 extern int nds32_target_alignment (rtx_insn *);
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122
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123 /* Auxiliary functions to expand builtin functions. */
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124
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125 extern void nds32_init_builtins_impl (void);
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126 extern rtx nds32_expand_builtin_impl (tree, rtx, rtx,
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127 machine_mode, int);
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128
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129 /* Auxiliary functions for ISR implementation. */
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130
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131 extern void nds32_check_isr_attrs_conflict (tree, tree);
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132 extern void nds32_construct_isr_vectors_information (tree, const char *);
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133 extern void nds32_asm_file_start_for_isr (void);
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134 extern void nds32_asm_file_end_for_isr (void);
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135 extern bool nds32_isr_function_p (tree);
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136
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137 /* Auxiliary functions for cost calculation. */
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138
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139 extern bool nds32_rtx_costs_impl (rtx, machine_mode, int, int, int *, bool);
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140 extern int nds32_address_cost_impl (rtx, machine_mode, addr_space_t, bool);
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141
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142 /* ------------------------------------------------------------------------ */
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