gcc/gimple-fold.h

   1 /* Gimple folding definitions.
   2
   3    Copyright (C) 2011-2018 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 extern bool get_range_strlen (tree, tree[2], unsigned = 1,
  29                               bool = false, tree * = NULL);
  30 extern tree get_maxval_strlen (tree, int, tree * = NULL);
  31 extern void gimplify_and_update_call_from_tree (gimple_stmt_iterator *, tree);
  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 (enum tree_code, tree, tree,
  36                                         enum tree_code, tree, tree);
  37 extern tree maybe_fold_or_comparisons (enum tree_code, tree, tree,
  38                                        enum tree_code, tree, tree);
  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, tree);
  95 inline tree
  96 gimple_build (gimple_seq *seq, combined_fn fn, tree type, tree arg0)
  97 {
  98   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
  99 }
 100 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
 101                           tree, tree, tree);
 102 inline tree
 103 gimple_build (gimple_seq *seq, combined_fn fn,
 104               tree type, tree arg0, tree arg1)
 105 {
 106   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
 107 }
 108 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
 109                           tree, tree, tree, tree);
 110 inline tree
 111 gimple_build (gimple_seq *seq, combined_fn fn,
 112               tree type, tree arg0, tree arg1, tree arg2)
 113 {
 114   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1, arg2);
 115 }
 116
 117 extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
 118 inline tree
 119 gimple_convert (gimple_seq *seq, tree type, tree op)
 120 {
 121   return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
 122 }
 123
 124 extern tree gimple_convert_to_ptrofftype (gimple_seq *, location_t, tree);
 125 inline tree
 126 gimple_convert_to_ptrofftype (gimple_seq *seq, tree op)
 127 {
 128   return gimple_convert_to_ptrofftype (seq, UNKNOWN_LOCATION, op);
 129 }
 130
 131 extern tree gimple_build_vector_from_val (gimple_seq *, location_t, tree,
 132                                           tree);
 133 inline tree
 134 gimple_build_vector_from_val (gimple_seq *seq, tree type, tree op)
 135 {
 136   return gimple_build_vector_from_val (seq, UNKNOWN_LOCATION, type, op);
 137 }
 138
 139 class tree_vector_builder;
 140 extern tree gimple_build_vector (gimple_seq *, location_t,
 141                                  tree_vector_builder *);
 142 inline tree
 143 gimple_build_vector (gimple_seq *seq, tree_vector_builder *builder)
 144 {
 145   return gimple_build_vector (seq, UNKNOWN_LOCATION, builder);
 146 }
 147
 148 extern bool gimple_stmt_nonnegative_warnv_p (gimple *, bool *, int = 0);
 149 extern bool gimple_stmt_integer_valued_real_p (gimple *, int = 0);
 150
 151 /* In gimple-match.c.  */
 152 extern tree gimple_simplify (enum tree_code, tree, tree,
 153                              gimple_seq *, tree (*)(tree));
 154 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
 155                              gimple_seq *, tree (*)(tree));
 156 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
 157                              gimple_seq *, tree (*)(tree));
 158 extern tree gimple_simplify (combined_fn, tree, tree,
 159                              gimple_seq *, tree (*)(tree));
 160 extern tree gimple_simplify (combined_fn, tree, tree, tree,
 161                              gimple_seq *, tree (*)(tree));
 162 extern tree gimple_simplify (combined_fn, tree, tree, tree, tree,
 163                              gimple_seq *, tree (*)(tree));
 164
 165 #endif  /* GCC_GIMPLE_FOLD_H */