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1 /* Gimple folding definitions.
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2
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3 Copyright (C) 2011-2020 Free Software Foundation, Inc.
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4 Contributed by Richard Guenther <rguenther@suse.de>
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5
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6 This file is part of GCC.
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7
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8 GCC is free software; you can redistribute it and/or modify it under
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9 the terms of the GNU General Public License as published by the Free
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10 Software Foundation; either version 3, or (at your option) any later
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11 version.
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12
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13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with GCC; see the file COPYING3. If not see
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20 <http://www.gnu.org/licenses/>. */
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21
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22 #ifndef GCC_GIMPLE_FOLD_H
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23 #define GCC_GIMPLE_FOLD_H
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24
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25 extern tree create_tmp_reg_or_ssa_name (tree, gimple *stmt = NULL);
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26 extern tree canonicalize_constructor_val (tree, tree);
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27 extern tree get_symbol_constant_value (tree);
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28 struct c_strlen_data;
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29 extern bool get_range_strlen (tree, c_strlen_data *, unsigned eltsize);
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30 extern void gimplify_and_update_call_from_tree (gimple_stmt_iterator *, tree);
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31 extern bool fold_stmt (gimple_stmt_iterator *);
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32 extern bool fold_stmt (gimple_stmt_iterator *, tree (*) (tree));
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33 extern bool fold_stmt_inplace (gimple_stmt_iterator *);
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34 extern tree maybe_fold_and_comparisons (tree, enum tree_code, tree, tree,
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35 enum tree_code, tree, tree);
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36 extern tree maybe_fold_or_comparisons (tree, enum tree_code, tree, tree,
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37 enum tree_code, tree, tree);
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38 extern bool optimize_atomic_compare_exchange_p (gimple *);
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39 extern void fold_builtin_atomic_compare_exchange (gimple_stmt_iterator *);
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40 extern bool arith_overflowed_p (enum tree_code, const_tree, const_tree,
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41 const_tree);
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42 extern tree no_follow_ssa_edges (tree);
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43 extern tree follow_single_use_edges (tree);
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44 extern tree follow_all_ssa_edges (tree);
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45 extern tree gimple_fold_stmt_to_constant_1 (gimple *, tree (*) (tree),
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46 tree (*) (tree) = no_follow_ssa_edges);
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47 extern tree gimple_fold_stmt_to_constant (gimple *, tree (*) (tree));
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48 extern tree fold_ctor_reference (tree, tree, const poly_uint64&,
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49 const poly_uint64&, tree,
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50 unsigned HOST_WIDE_INT * = NULL);
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51 extern tree fold_const_aggregate_ref_1 (tree, tree (*) (tree));
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52 extern tree fold_const_aggregate_ref (tree);
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53 extern tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree,
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54 bool *can_refer = NULL);
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55 extern tree gimple_get_virt_method_for_vtable (HOST_WIDE_INT, tree,
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56 unsigned HOST_WIDE_INT,
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57 bool *can_refer = NULL);
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58 extern tree gimple_fold_indirect_ref (tree);
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59 extern bool gimple_fold_builtin_sprintf (gimple_stmt_iterator *);
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60 extern bool gimple_fold_builtin_snprintf (gimple_stmt_iterator *);
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61 extern bool arith_code_with_undefined_signed_overflow (tree_code);
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62 extern gimple_seq rewrite_to_defined_overflow (gimple *);
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63 extern void replace_call_with_value (gimple_stmt_iterator *, tree);
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64 extern tree tree_vec_extract (gimple_stmt_iterator *, tree, tree, tree, tree);
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65
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66 /* gimple_build, functionally matching fold_buildN, outputs stmts
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67 int the provided sequence, matching and simplifying them on-the-fly.
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68 Supposed to replace force_gimple_operand (fold_buildN (...), ...). */
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69 extern tree gimple_build (gimple_seq *, location_t,
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70 enum tree_code, tree, tree);
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71 inline tree
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72 gimple_build (gimple_seq *seq,
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73 enum tree_code code, tree type, tree op0)
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74 {
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75 return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0);
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76 }
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77 extern tree gimple_build (gimple_seq *, location_t,
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78 enum tree_code, tree, tree, tree);
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79 inline tree
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80 gimple_build (gimple_seq *seq,
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81 enum tree_code code, tree type, tree op0, tree op1)
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82 {
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83 return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
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84 }
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85 extern tree gimple_build (gimple_seq *, location_t,
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86 enum tree_code, tree, tree, tree, tree);
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87 inline tree
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88 gimple_build (gimple_seq *seq,
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89 enum tree_code code, tree type, tree op0, tree op1, tree op2)
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90 {
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91 return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
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92 }
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93 extern tree gimple_build (gimple_seq *, location_t, combined_fn, tree, tree);
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94 inline tree
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95 gimple_build (gimple_seq *seq, combined_fn fn, tree type, tree arg0)
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96 {
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97 return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
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98 }
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99 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
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100 tree, tree, tree);
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101 inline tree
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102 gimple_build (gimple_seq *seq, combined_fn fn,
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103 tree type, tree arg0, tree arg1)
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104 {
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105 return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
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106 }
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107 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
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108 tree, tree, tree, tree);
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109 inline tree
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110 gimple_build (gimple_seq *seq, combined_fn fn,
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111 tree type, tree arg0, tree arg1, tree arg2)
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112 {
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113 return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1, arg2);
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114 }
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115
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116 extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
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117 inline tree
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118 gimple_convert (gimple_seq *seq, tree type, tree op)
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119 {
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120 return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
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121 }
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122
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123 extern tree gimple_convert_to_ptrofftype (gimple_seq *, location_t, tree);
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124 inline tree
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125 gimple_convert_to_ptrofftype (gimple_seq *seq, tree op)
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126 {
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127 return gimple_convert_to_ptrofftype (seq, UNKNOWN_LOCATION, op);
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128 }
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129
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130 extern tree gimple_build_vector_from_val (gimple_seq *, location_t, tree,
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131 tree);
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132 inline tree
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133 gimple_build_vector_from_val (gimple_seq *seq, tree type, tree op)
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134 {
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135 return gimple_build_vector_from_val (seq, UNKNOWN_LOCATION, type, op);
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136 }
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137
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138 class tree_vector_builder;
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139 extern tree gimple_build_vector (gimple_seq *, location_t,
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140 tree_vector_builder *);
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141 inline tree
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142 gimple_build_vector (gimple_seq *seq, tree_vector_builder *builder)
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143 {
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144 return gimple_build_vector (seq, UNKNOWN_LOCATION, builder);
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145 }
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146
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147 extern bool gimple_stmt_nonnegative_warnv_p (gimple *, bool *, int = 0);
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148 extern bool gimple_stmt_integer_valued_real_p (gimple *, int = 0);
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149
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150 /* In gimple-match.c. */
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151 extern tree gimple_simplify (enum tree_code, tree, tree,
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152 gimple_seq *, tree (*)(tree));
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153 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
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154 gimple_seq *, tree (*)(tree));
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155 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
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156 gimple_seq *, tree (*)(tree));
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157 extern tree gimple_simplify (combined_fn, tree, tree,
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158 gimple_seq *, tree (*)(tree));
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159 extern tree gimple_simplify (combined_fn, tree, tree, tree,
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160 gimple_seq *, tree (*)(tree));
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161 extern tree gimple_simplify (combined_fn, tree, tree, tree, tree,
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162 gimple_seq *, tree (*)(tree));
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163
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164 #endif /* GCC_GIMPLE_FOLD_H */
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