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], bool = false);
  29 extern tree get_maxval_strlen (tree, int);
  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 (enum tree_code, tree, tree,
  35                                         enum tree_code, tree, tree);
  36 extern tree maybe_fold_or_comparisons (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
  65 /* gimple_build, functionally matching fold_buildN, outputs stmts
  66    int the provided sequence, matching and simplifying them on-the-fly.
  67    Supposed to replace force_gimple_operand (fold_buildN (...), ...).  */
  68 extern tree gimple_build (gimple_seq *, location_t,
  69                           enum tree_code, tree, tree);
  70 inline tree
  71 gimple_build (gimple_seq *seq,
  72               enum tree_code code, tree type, tree op0)
  73 {
  74   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0);
  75 }
  76 extern tree gimple_build (gimple_seq *, location_t,
  77                           enum tree_code, tree, tree, tree);
  78 inline tree
  79 gimple_build (gimple_seq *seq,
  80               enum tree_code code, tree type, tree op0, tree op1)
  81 {
  82   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
  83 }
  84 extern tree gimple_build (gimple_seq *, location_t,
  85                           enum tree_code, tree, tree, tree, tree);
  86 inline tree
  87 gimple_build (gimple_seq *seq,
  88               enum tree_code code, tree type, tree op0, tree op1, tree op2)
  89 {
  90   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
  91 }
  92 extern tree gimple_build (gimple_seq *, location_t, combined_fn, tree, tree);
  93 inline tree
  94 gimple_build (gimple_seq *seq, combined_fn fn, tree type, tree arg0)
  95 {
  96   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
  97 }
  98 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
  99                           tree, tree, tree);
 100 inline tree
 101 gimple_build (gimple_seq *seq, combined_fn fn,
 102               tree type, tree arg0, tree arg1)
 103 {
 104   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
 105 }
 106 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
 107                           tree, tree, tree, tree);
 108 inline tree
 109 gimple_build (gimple_seq *seq, combined_fn fn,
 110               tree type, tree arg0, tree arg1, tree arg2)
 111 {
 112   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1, arg2);
 113 }
 114
 115 extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
 116 inline tree
 117 gimple_convert (gimple_seq *seq, tree type, tree op)
 118 {
 119   return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
 120 }
 121
 122 extern tree gimple_convert_to_ptrofftype (gimple_seq *, location_t, tree);
 123 inline tree
 124 gimple_convert_to_ptrofftype (gimple_seq *seq, tree op)
 125 {
 126   return gimple_convert_to_ptrofftype (seq, UNKNOWN_LOCATION, op);
 127 }
 128
 129 extern tree gimple_build_vector_from_val (gimple_seq *, location_t, tree,
 130                                           tree);
 131 inline tree
 132 gimple_build_vector_from_val (gimple_seq *seq, tree type, tree op)
 133 {
 134   return gimple_build_vector_from_val (seq, UNKNOWN_LOCATION, type, op);
 135 }
 136
 137 class tree_vector_builder;
 138 extern tree gimple_build_vector (gimple_seq *, location_t,
 139                                  tree_vector_builder *);
 140 inline tree
 141 gimple_build_vector (gimple_seq *seq, tree_vector_builder *builder)
 142 {
 143   return gimple_build_vector (seq, UNKNOWN_LOCATION, builder);
 144 }
 145
 146 extern bool gimple_stmt_nonnegative_warnv_p (gimple *, bool *, int = 0);
 147 extern bool gimple_stmt_integer_valued_real_p (gimple *, int = 0);
 148
 149 /* In gimple-match.c.  */
 150 extern tree gimple_simplify (enum tree_code, tree, tree,
 151                              gimple_seq *, tree (*)(tree));
 152 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
 153                              gimple_seq *, tree (*)(tree));
 154 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
 155                              gimple_seq *, tree (*)(tree));
 156 extern tree gimple_simplify (combined_fn, tree, tree,
 157                              gimple_seq *, tree (*)(tree));
 158 extern tree gimple_simplify (combined_fn, tree, tree, tree,
 159                              gimple_seq *, tree (*)(tree));
 160 extern tree gimple_simplify (combined_fn, tree, tree, tree, tree,
 161                              gimple_seq *, tree (*)(tree));
 162
 163 #endif  /* GCC_GIMPLE_FOLD_H */