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annotate gcc/config/nds32/nds32-protos.h @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children 1830386684a0
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1 /* Prototypes for exported functions of Andes NDS32 cpu for GNU compiler
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2 Copyright (C) 2012-2018 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 Usage. */
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30
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31 /* -- Order of Allocation of Registers. */
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32 extern void nds32_adjust_reg_alloc_order (void);
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33
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34 /* Register Classes. */
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35
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36 extern enum reg_class nds32_regno_reg_class (int);
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37
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38
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39 /* Stack Layout and Calling Conventions. */
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40
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41 /* -- Basic Stack Layout. */
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42
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43 extern rtx nds32_dynamic_chain_address (rtx);
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44 extern rtx nds32_return_addr_rtx (int, rtx);
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45
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46 /* -- Eliminating Frame Pointer and Arg Pointer. */
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47
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48 extern HOST_WIDE_INT nds32_initial_elimination_offset (unsigned int,
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49 unsigned int);
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50
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51 /* -- Passing Arguments in Registers. */
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52
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53 extern void nds32_init_cumulative_args (CUMULATIVE_ARGS *,
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54 tree, rtx, tree, int);
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55
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56 /* -- Function Entry and Exit. */
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57
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58 extern void nds32_expand_prologue (void);
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59 extern void nds32_expand_epilogue (bool);
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60 extern void nds32_expand_prologue_v3push (void);
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61 extern void nds32_expand_epilogue_v3pop (bool);
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62 extern void nds32_emit_push_fpr_callee_saved (int);
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63 extern void nds32_emit_pop_fpr_callee_saved (int);
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64 extern void nds32_emit_v3pop_fpr_callee_saved (int);
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65
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66 /* Controlling Debugging Information Format. */
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67
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68 extern unsigned int nds32_dbx_register_number (unsigned int);
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69
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70 /* ------------------------------------------------------------------------ */
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71
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72 /* Auxiliary functions for manipulation DI mode. */
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73
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74 extern rtx nds32_di_high_part_subreg(rtx);
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75 extern rtx nds32_di_low_part_subreg(rtx);
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76
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77 /* Auxiliary functions for expanding rtl used in nds32-multiple.md. */
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78
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79 extern rtx nds32_expand_load_multiple (int, int, rtx, rtx, bool, rtx *);
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80 extern rtx nds32_expand_store_multiple (int, int, rtx, rtx, bool, rtx *);
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81 extern bool nds32_expand_movmemsi (rtx, rtx, rtx, rtx);
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82 extern bool nds32_expand_setmem (rtx, rtx, rtx, rtx, rtx, rtx);
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83 extern bool nds32_expand_strlen (rtx, rtx, rtx, rtx);
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84
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85 /* Auxiliary functions for expand unalign load instruction. */
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86
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87 extern void nds32_expand_unaligned_load (rtx *, enum machine_mode);
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88
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89 /* Auxiliary functions for expand unalign store instruction. */
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90
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91 extern void nds32_expand_unaligned_store (rtx *, enum machine_mode);
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92
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93 /* Auxiliary functions for multiple load/store predicate checking. */
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94
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95 extern bool nds32_valid_multiple_load_store_p (rtx, bool, bool);
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96
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97 /* Auxiliary functions for guard function checking in pipelines.md. */
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98
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99 extern bool nds32_n7_load_to_ii_p (rtx_insn *, rtx_insn *);
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100 extern bool nds32_n7_last_load_to_ii_p (rtx_insn *, rtx_insn *);
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101
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102 extern bool nds32_n8_load_to_ii_p (rtx_insn *, rtx_insn *);
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103 extern bool nds32_n8_load_bi_to_ii_p (rtx_insn *, rtx_insn *);
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104 extern bool nds32_n8_load_to_ex_p (rtx_insn *, rtx_insn *);
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105 extern bool nds32_n8_ex_to_ii_p (rtx_insn *, rtx_insn *);
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106 extern bool nds32_n8_last_load_to_ii_p (rtx_insn *, rtx_insn *);
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107 extern bool nds32_n8_last_load_two_to_ii_p (rtx_insn *, rtx_insn *);
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108 extern bool nds32_n8_last_load_to_ex_p (rtx_insn *, rtx_insn *);
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109
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110 extern bool nds32_e8_load_to_ii_p (rtx_insn *, rtx_insn *);
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111 extern bool nds32_e8_load_to_ex_p (rtx_insn *, rtx_insn *);
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112 extern bool nds32_e8_ex_to_ii_p (rtx_insn *, rtx_insn *);
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113 extern bool nds32_e8_last_load_to_ii_p (rtx_insn *, rtx_insn *);
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114 extern bool nds32_e8_last_load_to_ex_p (rtx_insn *, rtx_insn *);
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115
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116 extern bool nds32_n9_2r1w_mm_to_ex_p (rtx_insn *, rtx_insn *);
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117 extern bool nds32_n9_3r2w_mm_to_ex_p (rtx_insn *, rtx_insn *);
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118 extern bool nds32_n9_last_load_to_ex_p (rtx_insn *, rtx_insn *);
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119
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120 extern bool nds32_n10_ex_to_ex_p (rtx_insn *, rtx_insn *);
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121 extern bool nds32_n10_mm_to_ex_p (rtx_insn *, rtx_insn *);
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122 extern bool nds32_n10_last_load_to_ex_p (rtx_insn *, rtx_insn *);
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123
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124 extern bool nds32_gw_ex_to_ex_p (rtx_insn *, rtx_insn *);
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125 extern bool nds32_gw_mm_to_ex_p (rtx_insn *, rtx_insn *);
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126 extern bool nds32_gw_last_load_to_ex_p (rtx_insn *, rtx_insn *);
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127
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128 extern bool nds32_n13_e2_to_e1_p (rtx_insn *, rtx_insn *);
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129 extern bool nds32_n13_load_to_e1_p (rtx_insn *, rtx_insn *);
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130 extern bool nds32_n13_load_to_e2_p (rtx_insn *, rtx_insn *);
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131 extern bool nds32_n13_last_load_to_e1_p (rtx_insn *, rtx_insn *);
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132 extern bool nds32_n13_last_load_to_e2_p (rtx_insn *, rtx_insn *);
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133 extern bool nds32_n13_last_two_load_to_e1_p (rtx_insn *, rtx_insn *);
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134
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135 /* Auxiliary functions for stack operation predicate checking. */
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136
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137 extern bool nds32_valid_stack_push_pop_p (rtx, bool);
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138
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139 /* Auxiliary functions for bit operation detection. */
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140
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141 extern bool nds32_can_use_bclr_p (HOST_WIDE_INT);
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142 extern bool nds32_can_use_bset_p (HOST_WIDE_INT);
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143 extern bool nds32_can_use_btgl_p (HOST_WIDE_INT);
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144
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145 extern bool nds32_can_use_bitci_p (HOST_WIDE_INT);
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146
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147 extern bool nds32_const_double_range_ok_p (rtx, machine_mode,
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148 HOST_WIDE_INT, HOST_WIDE_INT);
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149
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150 extern bool nds32_const_unspec_p (rtx x);
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151
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152 /* Auxiliary function for 'Computing the Length of an Insn'. */
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153
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154 extern int nds32_adjust_insn_length (rtx_insn *, int);
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155
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156 /* Auxiliary functions for FP_AS_GP detection. */
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157
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158 extern bool nds32_symbol_load_store_p (rtx_insn *);
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159 extern bool nds32_naked_function_p (tree);
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160
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161 /* Auxiliary functions for jump table generation. */
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162
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163 extern const char *nds32_output_casesi_pc_relative (rtx *);
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164 extern const char *nds32_output_casesi (rtx *);
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165
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166 /* Auxiliary functions for conditional branch generation. */
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167
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168 extern enum nds32_expand_result_type nds32_expand_cbranch (rtx *);
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169 extern enum nds32_expand_result_type nds32_expand_cstore (rtx *);
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170 extern void nds32_expand_float_cbranch (rtx *);
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171 extern void nds32_expand_float_cstore (rtx *);
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172
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173 /* Auxiliary functions for conditional move generation. */
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174
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175 extern enum nds32_expand_result_type nds32_expand_movcc (rtx *);
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176 extern void nds32_expand_float_movcc (rtx *);
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177
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178 /* Auxiliary functions for expand extv/insv instruction. */
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179
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180 extern enum nds32_expand_result_type nds32_expand_extv (rtx *);
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181 extern enum nds32_expand_result_type nds32_expand_insv (rtx *);
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182
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183 /* Auxiliary functions for expand PIC instruction. */
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184
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185 extern void nds32_expand_pic_move (rtx *);
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186
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187 /* Auxiliary functions to legitimize PIC address. */
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188
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189 extern rtx nds32_legitimize_pic_address (rtx);
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190
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191 /* Auxiliary functions for expand TLS instruction. */
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192
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193 extern void nds32_expand_tls_move (rtx *);
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194
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195 /* Auxiliary functions to legitimize TLS address. */
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196
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197 extern rtx nds32_legitimize_tls_address (rtx);
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198
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199 /* Auxiliary functions to identify thread-local symbol. */
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200
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201 extern bool nds32_tls_referenced_p (rtx);
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202
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203 /* Auxiliary functions for expand ICT instruction. */
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204
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205 extern void nds32_expand_ict_move (rtx *);
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206
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207 /* Auxiliary functions to legitimize address for indirect-call symbol. */
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208
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209 extern rtx nds32_legitimize_ict_address (rtx);
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210
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211 /* Auxiliary functions to identify indirect-call symbol. */
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212
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213 extern bool nds32_indirect_call_referenced_p (rtx);
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214
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215 /* Auxiliary functions to identify long-call symbol. */
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216 extern bool nds32_long_call_p (rtx);
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217
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218 /* Auxiliary functions to identify SYMBOL_REF and LABEL_REF pattern. */
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219
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220 extern bool symbolic_reference_mentioned_p (rtx);
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221
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222 /* Auxiliary functions to identify conditional move comparison operand. */
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223
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224 extern int nds32_cond_move_p (rtx);
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225
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226 /* Auxiliary functions to identify 16 bit addresing mode. */
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227
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228 extern enum nds32_16bit_address_type nds32_mem_format (rtx);
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229
131
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230 /* Auxiliary functions to identify floating-point addresing mode. */
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231
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232 extern bool nds32_float_mem_operand_p (rtx);
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233
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234 /* Auxiliary functions to output assembly code. */
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235
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236 extern const char *nds32_output_16bit_store (rtx *, int);
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237 extern const char *nds32_output_16bit_load (rtx *, int);
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238 extern const char *nds32_output_32bit_store (rtx *, int);
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239 extern const char *nds32_output_32bit_load (rtx *, int);
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240 extern const char *nds32_output_32bit_load_s (rtx *, int);
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241 extern const char *nds32_output_float_load(rtx *);
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242 extern const char *nds32_output_float_store(rtx *);
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243 extern const char *nds32_output_smw_single_word (rtx *);
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244 extern const char *nds32_output_smw_double_word (rtx *);
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245 extern const char *nds32_output_lmw_single_word (rtx *);
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246 extern const char *nds32_output_double (rtx *, bool);
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247 extern const char *nds32_output_cbranchsi4_equality_zero (rtx_insn *, rtx *);
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248 extern const char *nds32_output_cbranchsi4_equality_reg (rtx_insn *, rtx *);
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249 extern const char *nds32_output_cbranchsi4_equality_reg_or_const_int (rtx_insn *,
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250 rtx *);
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251 extern const char *nds32_output_cbranchsi4_greater_less_zero (rtx_insn *, rtx *);
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252
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253 extern const char *nds32_output_unpkd8 (rtx, rtx, rtx, rtx, bool);
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254
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255 extern const char *nds32_output_call (rtx, rtx *, rtx,
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256 const char *, const char *, bool);
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257 extern const char *nds32_output_tls_desc (rtx *);
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258 extern const char *nds32_output_tls_ie (rtx *);
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259
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260 /* Auxiliary functions to output stack push/pop instruction. */
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261
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262 extern const char *nds32_output_stack_push (rtx);
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263 extern const char *nds32_output_stack_pop (rtx);
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264 extern const char *nds32_output_return (void);
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265
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266
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267 /* Auxiliary functions to split/output sms pattern. */
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268 extern bool nds32_need_split_sms_p (rtx, rtx, rtx, rtx);
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269 extern const char *nds32_output_sms (rtx, rtx, rtx, rtx);
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270 extern void nds32_split_sms (rtx, rtx, rtx, rtx, rtx, rtx, rtx);
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271
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272 /* Auxiliary functions to split double word RTX pattern. */
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273
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274 extern void nds32_spilt_doubleword (rtx *, bool);
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275 extern void nds32_split_ashiftdi3 (rtx, rtx, rtx);
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276 extern void nds32_split_ashiftrtdi3 (rtx, rtx, rtx);
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277 extern void nds32_split_lshiftrtdi3 (rtx, rtx, rtx);
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278 extern void nds32_split_rotatertdi3 (rtx, rtx, rtx);
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279
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280 /* Auxiliary functions to split large constant RTX pattern. */
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281
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282 extern void nds32_expand_constant (machine_mode,
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283 HOST_WIDE_INT, rtx, rtx);
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284
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285 /* Auxiliary functions to check using return with null epilogue. */
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286
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287 extern int nds32_can_use_return_insn (void);
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288 extern scalar_int_mode nds32_case_vector_shorten_mode (int, int, rtx);
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289
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290 /* Auxiliary functions to decide output alignment or not. */
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291
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292 extern int nds32_target_alignment (rtx_insn *);
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293 extern unsigned int nds32_data_alignment (tree, unsigned int);
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294 extern unsigned int nds32_local_alignment (tree, unsigned int);
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295
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296 /* Auxiliary functions to expand builtin functions. */
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297
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298 extern void nds32_init_builtins_impl (void);
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299 extern rtx nds32_expand_builtin_impl (tree, rtx, rtx,
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300 machine_mode, int);
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301 extern tree nds32_builtin_decl_impl (unsigned, bool);
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302
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303 /* Auxiliary functions for ISR implementation. */
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304
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305 extern void nds32_check_isr_attrs_conflict (tree, tree);
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306 extern void nds32_construct_isr_vectors_information (tree, const char *);
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307 extern void nds32_asm_file_start_for_isr (void);
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308 extern void nds32_asm_file_end_for_isr (void);
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309 extern bool nds32_isr_function_p (tree);
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310 extern bool nds32_isr_function_critical_p (tree);
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311
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312 /* Auxiliary functions for cost calculation. */
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313
131
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314 extern void nds32_init_rtx_costs (void);
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315 extern bool nds32_rtx_costs_impl (rtx, machine_mode, int, int, int *, bool);
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316 extern int nds32_address_cost_impl (rtx, machine_mode, addr_space_t, bool);
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317
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318 /* Auxiliary functions for pre-define marco. */
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319 extern void nds32_cpu_cpp_builtins(struct cpp_reader *);
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320
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321 /* Auxiliary functions for const_vector's constraints. */
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322
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323 extern HOST_WIDE_INT const_vector_to_hwint (rtx);
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324 extern bool nds32_valid_CVp5_p (rtx);
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325 extern bool nds32_valid_CVs5_p (rtx);
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326 extern bool nds32_valid_CVs2_p (rtx);
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327 extern bool nds32_valid_CVhi_p (rtx);
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328
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329 /* Auxiliary functions for lwm/smw. */
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330
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331 extern bool nds32_valid_smw_lwm_base_p (rtx);
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332
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333 extern bool nds32_split_double_word_load_store_p (rtx *,bool);
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334
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335 namespace nds32 {
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336
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337 extern rtx extract_pattern_from_insn (rtx);
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338
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339 size_t parallel_elements (rtx);
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340 rtx parallel_element (rtx, int);
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341 bool load_single_p (rtx_insn *);
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342 bool store_single_p (rtx_insn *);
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343 bool load_double_p (rtx_insn *);
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344 bool store_double_p (rtx_insn *);
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345 bool store_offset_reg_p (rtx_insn *);
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346 bool post_update_insn_p (rtx_insn *);
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347 bool immed_offset_p (rtx);
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348 int find_post_update_rtx (rtx_insn *);
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349 rtx extract_mem_rtx (rtx_insn *);
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350 rtx extract_base_reg (rtx_insn *);
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351 rtx extract_offset_rtx (rtx_insn *);
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352
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353 rtx extract_shift_reg (rtx);
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354
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355 bool movd44_insn_p (rtx_insn *);
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356 rtx extract_movd44_odd_reg (rtx_insn *);
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357
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358 rtx extract_mac_non_acc_rtx (rtx_insn *);
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359
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360 bool divmod_p (rtx_insn *);
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361
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362 rtx extract_branch_target_rtx (rtx_insn *);
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363 rtx extract_branch_condition_rtx (rtx_insn *);
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364 } // namespace nds32
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365
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366 extern bool nds32_use_load_post_increment(machine_mode);
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367
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368 /* Functions for create nds32 specific optimization pass. */
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369 extern rtl_opt_pass *make_pass_nds32_relax_opt (gcc::context *);
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370 extern rtl_opt_pass *make_pass_nds32_fp_as_gp (gcc::context *);
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371
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372 /* ------------------------------------------------------------------------ */