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 update_gimple_call (gimple_stmt_iterator *, tree, int, ...);
  32 extern bool fold_stmt (gimple_stmt_iterator *);
  33 extern bool fold_stmt (gimple_stmt_iterator *, tree (*) (tree));
  34 extern bool fold_stmt_inplace (gimple_stmt_iterator *);
  35 extern tree maybe_fold_and_comparisons (tree, enum tree_code, tree, tree,
  36                                         enum tree_code, tree, tree);
  37 extern tree maybe_fold_or_comparisons (tree, enum tree_code, tree, tree,
  38                                        enum tree_code, tree, tree);
  39 extern bool clear_padding_type_may_have_padding_p (tree);
  40 extern void clear_type_padding_in_mask (tree, unsigned char *);
  41 extern bool optimize_atomic_compare_exchange_p (gimple *);
  42 extern void fold_builtin_atomic_compare_exchange (gimple_stmt_iterator *);
  43 extern bool arith_overflowed_p (enum tree_code, const_tree, const_tree,
  44                                 const_tree);
  45 extern tree no_follow_ssa_edges (tree);
  46 extern tree follow_single_use_edges (tree);
  47 extern tree follow_all_ssa_edges (tree);
  48 extern tree gimple_fold_stmt_to_constant_1 (gimple *, tree (*) (tree),
  49                                             tree (*) (tree) = no_follow_ssa_edges);
  50 extern tree gimple_fold_stmt_to_constant (gimple *, tree (*) (tree));
  51 extern tree fold_ctor_reference (tree, tree, const poly_uint64&,
  52                                  const poly_uint64&, tree,
  53                                  unsigned HOST_WIDE_INT * = NULL);
  54 extern tree fold_const_aggregate_ref_1 (tree, tree (*) (tree));
  55 extern tree fold_const_aggregate_ref (tree);
  56 extern tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree,
  57                                               bool *can_refer = NULL);
  58 extern tree gimple_get_virt_method_for_vtable (HOST_WIDE_INT, tree,
  59                                                unsigned HOST_WIDE_INT,
  60                                                bool *can_refer = NULL);
  61 extern tree gimple_fold_indirect_ref (tree);
  62 extern bool gimple_fold_builtin_sprintf (gimple_stmt_iterator *);
  63 extern bool gimple_fold_builtin_snprintf (gimple_stmt_iterator *);
  64 extern bool arith_code_with_undefined_signed_overflow (tree_code);
  65 extern gimple_seq rewrite_to_defined_overflow (gimple *);
  66 extern void replace_call_with_value (gimple_stmt_iterator *, tree);
  67 extern tree tree_vec_extract (gimple_stmt_iterator *, tree, tree, tree, tree);
  68
  69 /* gimple_build, functionally matching fold_buildN, outputs stmts
  70    int the provided sequence, matching and simplifying them on-the-fly.
  71    Supposed to replace force_gimple_operand (fold_buildN (...), ...).  */
  72 extern tree gimple_build (gimple_seq *, location_t,
  73                           enum tree_code, tree, tree);
  74 inline tree
  75 gimple_build (gimple_seq *seq,
  76               enum tree_code code, tree type, tree op0)
  77 {
  78   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0);
  79 }
  80 extern tree gimple_build (gimple_seq *, location_t,
  81                           enum tree_code, tree, tree, tree);
  82 inline tree
  83 gimple_build (gimple_seq *seq,
  84               enum tree_code code, tree type, tree op0, tree op1)
  85 {
  86   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
  87 }
  88 extern tree gimple_build (gimple_seq *, location_t,
  89                           enum tree_code, tree, tree, tree, tree);
  90 inline tree
  91 gimple_build (gimple_seq *seq,
  92               enum tree_code code, tree type, tree op0, tree op1, tree op2)
  93 {
  94   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
  95 }
  96 extern tree gimple_build (gimple_seq *, location_t, combined_fn, tree);
  97 inline tree
  98 gimple_build (gimple_seq *seq, combined_fn fn, tree type)
  99 {
 100   return gimple_build (seq, UNKNOWN_LOCATION, fn, type);
 101 }
 102 extern tree gimple_build (gimple_seq *, location_t, combined_fn, tree, tree);
 103 inline tree
 104 gimple_build (gimple_seq *seq, combined_fn fn, tree type, tree arg0)
 105 {
 106   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
 107 }
 108 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
 109                           tree, tree, tree);
 110 inline tree
 111 gimple_build (gimple_seq *seq, combined_fn fn,
 112               tree type, tree arg0, tree arg1)
 113 {
 114   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
 115 }
 116 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
 117                           tree, tree, tree, tree);
 118 inline tree
 119 gimple_build (gimple_seq *seq, combined_fn fn,
 120               tree type, tree arg0, tree arg1, tree arg2)
 121 {
 122   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1, arg2);
 123 }
 124
 125 extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
 126 inline tree
 127 gimple_convert (gimple_seq *seq, tree type, tree op)
 128 {
 129   return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
 130 }
 131
 132 extern tree gimple_convert_to_ptrofftype (gimple_seq *, location_t, tree);
 133 inline tree
 134 gimple_convert_to_ptrofftype (gimple_seq *seq, tree op)
 135 {
 136   return gimple_convert_to_ptrofftype (seq, UNKNOWN_LOCATION, op);
 137 }
 138
 139 extern tree gimple_build_vector_from_val (gimple_seq *, location_t, tree,
 140                                           tree);
 141 inline tree
 142 gimple_build_vector_from_val (gimple_seq *seq, tree type, tree op)
 143 {
 144   return gimple_build_vector_from_val (seq, UNKNOWN_LOCATION, type, op);
 145 }
 146
 147 class tree_vector_builder;
 148 extern tree gimple_build_vector (gimple_seq *, location_t,
 149                                  tree_vector_builder *);
 150 inline tree
 151 gimple_build_vector (gimple_seq *seq, tree_vector_builder *builder)
 152 {
 153   return gimple_build_vector (seq, UNKNOWN_LOCATION, builder);
 154 }
 155
 156 extern tree gimple_build_round_up (gimple_seq *, location_t, tree, tree,
 157                                    unsigned HOST_WIDE_INT);
 158 inline tree
 159 gimple_build_round_up (gimple_seq *seq, tree type, tree old_size,
 160                        unsigned HOST_WIDE_INT align)
 161 {
 162   return gimple_build_round_up (seq, UNKNOWN_LOCATION, type, old_size, align);
 163 }
 164
 165 extern bool gimple_stmt_nonnegative_warnv_p (gimple *, bool *, int = 0);
 166 extern bool gimple_stmt_integer_valued_real_p (gimple *, int = 0);
 167
 168 /* In gimple-match.c.  */
 169 extern tree gimple_simplify (enum tree_code, tree, tree,
 170                              gimple_seq *, tree (*)(tree));
 171 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
 172                              gimple_seq *, tree (*)(tree));
 173 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
 174                              gimple_seq *, tree (*)(tree));
 175 extern tree gimple_simplify (combined_fn, tree, tree,
 176                              gimple_seq *, tree (*)(tree));
 177 extern tree gimple_simplify (combined_fn, tree, tree, tree,
 178                              gimple_seq *, tree (*)(tree));
 179 extern tree gimple_simplify (combined_fn, tree, tree, tree, tree,
 180                              gimple_seq *, tree (*)(tree));
 181
 182 #endif  /* GCC_GIMPLE_FOLD_H */