gcc/gimple-fold.h

   1 /* Gimple folding definitions.
   2
   3    Copyright (C) 2011-2020 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 bool optimize_atomic_compare_exchange_p (gimple *);
  39 extern void fold_builtin_atomic_compare_exchange (gimple_stmt_iterator *);
  40 extern bool arith_overflowed_p (enum tree_code, const_tree, const_tree,
  41                                 const_tree);
  42 extern tree no_follow_ssa_edges (tree);
  43 extern tree follow_single_use_edges (tree);
  44 extern tree follow_all_ssa_edges (tree);
  45 extern tree gimple_fold_stmt_to_constant_1 (gimple *, tree (*) (tree),
  46                                             tree (*) (tree) = no_follow_ssa_edges);
  47 extern tree gimple_fold_stmt_to_constant (gimple *, tree (*) (tree));
  48 extern tree fold_ctor_reference (tree, tree, const poly_uint64&,
  49                                  const poly_uint64&, tree,
  50                                  unsigned HOST_WIDE_INT * = NULL);
  51 extern tree fold_const_aggregate_ref_1 (tree, tree (*) (tree));
  52 extern tree fold_const_aggregate_ref (tree);
  53 extern tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree,
  54                                               bool *can_refer = NULL);
  55 extern tree gimple_get_virt_method_for_vtable (HOST_WIDE_INT, tree,
  56                                                unsigned HOST_WIDE_INT,
  57                                                bool *can_refer = NULL);
  58 extern tree gimple_fold_indirect_ref (tree);
  59 extern bool gimple_fold_builtin_sprintf (gimple_stmt_iterator *);
  60 extern bool gimple_fold_builtin_snprintf (gimple_stmt_iterator *);
  61 extern bool arith_code_with_undefined_signed_overflow (tree_code);
  62 extern gimple_seq rewrite_to_defined_overflow (gimple *);
  63 extern void replace_call_with_value (gimple_stmt_iterator *, tree);
  64 extern tree tree_vec_extract (gimple_stmt_iterator *, tree, tree, tree, tree);
  65
  66 /* gimple_build, functionally matching fold_buildN, outputs stmts
  67    int the provided sequence, matching and simplifying them on-the-fly.
  68    Supposed to replace force_gimple_operand (fold_buildN (...), ...).  */
  69 extern tree gimple_build (gimple_seq *, location_t,
  70                           enum tree_code, tree, tree);
  71 inline tree
  72 gimple_build (gimple_seq *seq,
  73               enum tree_code code, tree type, tree op0)
  74 {
  75   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0);
  76 }
  77 extern tree gimple_build (gimple_seq *, location_t,
  78                           enum tree_code, tree, tree, tree);
  79 inline tree
  80 gimple_build (gimple_seq *seq,
  81               enum tree_code code, tree type, tree op0, tree op1)
  82 {
  83   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
  84 }
  85 extern tree gimple_build (gimple_seq *, location_t,
  86                           enum tree_code, tree, tree, tree, tree);
  87 inline tree
  88 gimple_build (gimple_seq *seq,
  89               enum tree_code code, tree type, tree op0, tree op1, tree op2)
  90 {
  91   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
  92 }
  93 extern tree gimple_build (gimple_seq *, location_t, combined_fn, tree, tree);
  94 inline tree
  95 gimple_build (gimple_seq *seq, combined_fn fn, tree type, tree arg0)
  96 {
  97   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
  98 }
  99 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
 100                           tree, tree, tree);
 101 inline tree
 102 gimple_build (gimple_seq *seq, combined_fn fn,
 103               tree type, tree arg0, tree arg1)
 104 {
 105   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
 106 }
 107 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
 108                           tree, tree, tree, tree);
 109 inline tree
 110 gimple_build (gimple_seq *seq, combined_fn fn,
 111               tree type, tree arg0, tree arg1, tree arg2)
 112 {
 113   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1, arg2);
 114 }
 115
 116 extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
 117 inline tree
 118 gimple_convert (gimple_seq *seq, tree type, tree op)
 119 {
 120   return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
 121 }
 122
 123 extern tree gimple_convert_to_ptrofftype (gimple_seq *, location_t, tree);
 124 inline tree
 125 gimple_convert_to_ptrofftype (gimple_seq *seq, tree op)
 126 {
 127   return gimple_convert_to_ptrofftype (seq, UNKNOWN_LOCATION, op);
 128 }
 129
 130 extern tree gimple_build_vector_from_val (gimple_seq *, location_t, tree,
 131                                           tree);
 132 inline tree
 133 gimple_build_vector_from_val (gimple_seq *seq, tree type, tree op)
 134 {
 135   return gimple_build_vector_from_val (seq, UNKNOWN_LOCATION, type, op);
 136 }
 137
 138 class tree_vector_builder;
 139 extern tree gimple_build_vector (gimple_seq *, location_t,
 140                                  tree_vector_builder *);
 141 inline tree
 142 gimple_build_vector (gimple_seq *seq, tree_vector_builder *builder)
 143 {
 144   return gimple_build_vector (seq, UNKNOWN_LOCATION, builder);
 145 }
 146
 147 extern bool gimple_stmt_nonnegative_warnv_p (gimple *, bool *, int = 0);
 148 extern bool gimple_stmt_integer_valued_real_p (gimple *, int = 0);
 149
 150 /* In gimple-match.c.  */
 151 extern tree gimple_simplify (enum tree_code, tree, tree,
 152                              gimple_seq *, tree (*)(tree));
 153 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
 154                              gimple_seq *, tree (*)(tree));
 155 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
 156                              gimple_seq *, tree (*)(tree));
 157 extern tree gimple_simplify (combined_fn, tree, tree,
 158                              gimple_seq *, tree (*)(tree));
 159 extern tree gimple_simplify (combined_fn, tree, tree, tree,
 160                              gimple_seq *, tree (*)(tree));
 161 extern tree gimple_simplify (combined_fn, tree, tree, tree, tree,
 162                              gimple_seq *, tree (*)(tree));
 163
 164 #endif  /* GCC_GIMPLE_FOLD_H */