gcc/gimple-fold.h

   1 /* Gimple folding definitions.
   2
   3    Copyright (C) 2011-2021 Free Software Foundation, Inc.
   4    Contributed by Richard Guenther <rguenther@suse.de>
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 3, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 #ifndef GCC_GIMPLE_FOLD_H
  23 #define GCC_GIMPLE_FOLD_H
  24
  25 extern tree create_tmp_reg_or_ssa_name (tree, gimple *stmt = NULL);
  26 extern tree canonicalize_constructor_val (tree, tree);
  27 extern tree get_symbol_constant_value (tree);
  28 struct c_strlen_data;
  29 extern bool get_range_strlen (tree, c_strlen_data *, unsigned eltsize);
  30 extern void gimplify_and_update_call_from_tree (gimple_stmt_iterator *, tree);
  31 extern bool fold_stmt (gimple_stmt_iterator *);
  32 extern bool fold_stmt (gimple_stmt_iterator *, tree (*) (tree));
  33 extern bool fold_stmt_inplace (gimple_stmt_iterator *);
  34 extern tree maybe_fold_and_comparisons (tree, enum tree_code, tree, tree,
  35                                         enum tree_code, tree, tree);
  36 extern tree maybe_fold_or_comparisons (tree, enum tree_code, tree, tree,
  37                                        enum tree_code, tree, tree);
  38 extern void clear_type_padding_in_mask (tree, unsigned char *);
  39 extern bool optimize_atomic_compare_exchange_p (gimple *);
  40 extern void fold_builtin_atomic_compare_exchange (gimple_stmt_iterator *);
  41 extern bool arith_overflowed_p (enum tree_code, const_tree, const_tree,
  42                                 const_tree);
  43 extern tree no_follow_ssa_edges (tree);
  44 extern tree follow_single_use_edges (tree);
  45 extern tree follow_all_ssa_edges (tree);
  46 extern tree gimple_fold_stmt_to_constant_1 (gimple *, tree (*) (tree),
  47                                             tree (*) (tree) = no_follow_ssa_edges);
  48 extern tree gimple_fold_stmt_to_constant (gimple *, tree (*) (tree));
  49 extern tree fold_ctor_reference (tree, tree, const poly_uint64&,
  50                                  const poly_uint64&, tree,
  51                                  unsigned HOST_WIDE_INT * = NULL);
  52 extern tree fold_const_aggregate_ref_1 (tree, tree (*) (tree));
  53 extern tree fold_const_aggregate_ref (tree);
  54 extern tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree,
  55                                               bool *can_refer = NULL);
  56 extern tree gimple_get_virt_method_for_vtable (HOST_WIDE_INT, tree,
  57                                                unsigned HOST_WIDE_INT,
  58                                                bool *can_refer = NULL);
  59 extern tree gimple_fold_indirect_ref (tree);
  60 extern bool gimple_fold_builtin_sprintf (gimple_stmt_iterator *);
  61 extern bool gimple_fold_builtin_snprintf (gimple_stmt_iterator *);
  62 extern bool arith_code_with_undefined_signed_overflow (tree_code);
  63 extern gimple_seq rewrite_to_defined_overflow (gimple *);
  64 extern void replace_call_with_value (gimple_stmt_iterator *, tree);
  65 extern tree tree_vec_extract (gimple_stmt_iterator *, tree, tree, tree, tree);
  66
  67 /* gimple_build, functionally matching fold_buildN, outputs stmts
  68    int the provided sequence, matching and simplifying them on-the-fly.
  69    Supposed to replace force_gimple_operand (fold_buildN (...), ...).  */
  70 extern tree gimple_build (gimple_seq *, location_t,
  71                           enum tree_code, tree, tree);
  72 inline tree
  73 gimple_build (gimple_seq *seq,
  74               enum tree_code code, tree type, tree op0)
  75 {
  76   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0);
  77 }
  78 extern tree gimple_build (gimple_seq *, location_t,
  79                           enum tree_code, tree, tree, tree);
  80 inline tree
  81 gimple_build (gimple_seq *seq,
  82               enum tree_code code, tree type, tree op0, tree op1)
  83 {
  84   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
  85 }
  86 extern tree gimple_build (gimple_seq *, location_t,
  87                           enum tree_code, tree, tree, tree, tree);
  88 inline tree
  89 gimple_build (gimple_seq *seq,
  90               enum tree_code code, tree type, tree op0, tree op1, tree op2)
  91 {
  92   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
  93 }
  94 extern tree gimple_build (gimple_seq *, location_t, combined_fn, tree);
  95 inline tree
  96 gimple_build (gimple_seq *seq, combined_fn fn, tree type)
  97 {
  98   return gimple_build (seq, UNKNOWN_LOCATION, fn, type);
  99 }
 100 extern tree gimple_build (gimple_seq *, location_t, combined_fn, tree, tree);
 101 inline tree
 102 gimple_build (gimple_seq *seq, combined_fn fn, tree type, tree arg0)
 103 {
 104   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
 105 }
 106 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
 107                           tree, tree, tree);
 108 inline tree
 109 gimple_build (gimple_seq *seq, combined_fn fn,
 110               tree type, tree arg0, tree arg1)
 111 {
 112   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
 113 }
 114 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
 115                           tree, tree, tree, tree);
 116 inline tree
 117 gimple_build (gimple_seq *seq, combined_fn fn,
 118               tree type, tree arg0, tree arg1, tree arg2)
 119 {
 120   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1, arg2);
 121 }
 122
 123 extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
 124 inline tree
 125 gimple_convert (gimple_seq *seq, tree type, tree op)
 126 {
 127   return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
 128 }
 129
 130 extern tree gimple_convert_to_ptrofftype (gimple_seq *, location_t, tree);
 131 inline tree
 132 gimple_convert_to_ptrofftype (gimple_seq *seq, tree op)
 133 {
 134   return gimple_convert_to_ptrofftype (seq, UNKNOWN_LOCATION, op);
 135 }
 136
 137 extern tree gimple_build_vector_from_val (gimple_seq *, location_t, tree,
 138                                           tree);
 139 inline tree
 140 gimple_build_vector_from_val (gimple_seq *seq, tree type, tree op)
 141 {
 142   return gimple_build_vector_from_val (seq, UNKNOWN_LOCATION, type, op);
 143 }
 144
 145 class tree_vector_builder;
 146 extern tree gimple_build_vector (gimple_seq *, location_t,
 147                                  tree_vector_builder *);
 148 inline tree
 149 gimple_build_vector (gimple_seq *seq, tree_vector_builder *builder)
 150 {
 151   return gimple_build_vector (seq, UNKNOWN_LOCATION, builder);
 152 }
 153
 154 extern tree gimple_build_round_up (gimple_seq *, location_t, tree, tree,
 155                                    unsigned HOST_WIDE_INT);
 156 inline tree
 157 gimple_build_round_up (gimple_seq *seq, tree type, tree old_size,
 158                        unsigned HOST_WIDE_INT align)
 159 {
 160   return gimple_build_round_up (seq, UNKNOWN_LOCATION, type, old_size, align);
 161 }
 162
 163 extern bool gimple_stmt_nonnegative_warnv_p (gimple *, bool *, int = 0);
 164 extern bool gimple_stmt_integer_valued_real_p (gimple *, int = 0);
 165
 166 /* In gimple-match.c.  */
 167 extern tree gimple_simplify (enum tree_code, tree, tree,
 168                              gimple_seq *, tree (*)(tree));
 169 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
 170                              gimple_seq *, tree (*)(tree));
 171 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
 172                              gimple_seq *, tree (*)(tree));
 173 extern tree gimple_simplify (combined_fn, tree, tree,
 174                              gimple_seq *, tree (*)(tree));
 175 extern tree gimple_simplify (combined_fn, tree, tree, tree,
 176                              gimple_seq *, tree (*)(tree));
 177 extern tree gimple_simplify (combined_fn, tree, tree, tree, tree,
 178                              gimple_seq *, tree (*)(tree));
 179
 180 #endif  /* GCC_GIMPLE_FOLD_H */