gcc/gimple-fold.h

   1 /* Gimple folding definitions.
   2
   3    Copyright (C) 2011-2016 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 canonicalize_constructor_val (tree, tree);
  26 extern tree get_symbol_constant_value (tree);
  27 extern void get_range_strlen (tree, tree[2]);
  28 extern tree get_maxval_strlen (tree, int);
  29 extern void gimplify_and_update_call_from_tree (gimple_stmt_iterator *, tree);
  30 extern bool fold_stmt (gimple_stmt_iterator *);
  31 extern bool fold_stmt (gimple_stmt_iterator *, tree (*) (tree));
  32 extern bool fold_stmt_inplace (gimple_stmt_iterator *);
  33 extern tree maybe_fold_and_comparisons (enum tree_code, tree, tree,
  34                                         enum tree_code, tree, tree);
  35 extern tree maybe_fold_or_comparisons (enum tree_code, tree, tree,
  36                                        enum tree_code, tree, tree);
  37 extern bool optimize_atomic_compare_exchange_p (gimple *);
  38 extern void fold_builtin_atomic_compare_exchange (gimple_stmt_iterator *);
  39 extern bool arith_overflowed_p (enum tree_code, const_tree, const_tree,
  40                                 const_tree);
  41 extern tree no_follow_ssa_edges (tree);
  42 extern tree follow_single_use_edges (tree);
  43 extern tree gimple_fold_stmt_to_constant_1 (gimple *, tree (*) (tree),
  44                                             tree (*) (tree) = no_follow_ssa_edges);
  45 extern tree gimple_fold_stmt_to_constant (gimple *, tree (*) (tree));
  46 extern tree fold_ctor_reference (tree, tree, unsigned HOST_WIDE_INT,
  47                                  unsigned HOST_WIDE_INT, tree);
  48 extern tree fold_const_aggregate_ref_1 (tree, tree (*) (tree));
  49 extern tree fold_const_aggregate_ref (tree);
  50 extern tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree,
  51                                               bool *can_refer = NULL);
  52 extern tree gimple_get_virt_method_for_vtable (HOST_WIDE_INT, tree,
  53                                                unsigned HOST_WIDE_INT,
  54                                                bool *can_refer = NULL);
  55 extern tree gimple_fold_indirect_ref (tree);
  56 extern bool arith_code_with_undefined_signed_overflow (tree_code);
  57 extern gimple_seq rewrite_to_defined_overflow (gimple *);
  58
  59 /* gimple_build, functionally matching fold_buildN, outputs stmts
  60    int the provided sequence, matching and simplifying them on-the-fly.
  61    Supposed to replace force_gimple_operand (fold_buildN (...), ...).  */
  62 extern tree gimple_build (gimple_seq *, location_t,
  63                           enum tree_code, tree, tree);
  64 inline tree
  65 gimple_build (gimple_seq *seq,
  66               enum tree_code code, tree type, tree op0)
  67 {
  68   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0);
  69 }
  70 extern tree gimple_build (gimple_seq *, location_t,
  71                           enum tree_code, tree, tree, tree);
  72 inline tree
  73 gimple_build (gimple_seq *seq,
  74               enum tree_code code, tree type, tree op0, tree op1)
  75 {
  76   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
  77 }
  78 extern tree gimple_build (gimple_seq *, location_t,
  79                           enum tree_code, tree, tree, tree, tree);
  80 inline tree
  81 gimple_build (gimple_seq *seq,
  82               enum tree_code code, tree type, tree op0, tree op1, tree op2)
  83 {
  84   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
  85 }
  86 extern tree gimple_build (gimple_seq *, location_t,
  87                           enum built_in_function, tree, tree);
  88 inline tree
  89 gimple_build (gimple_seq *seq,
  90               enum built_in_function fn, tree type, tree arg0)
  91 {
  92   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
  93 }
  94 extern tree gimple_build (gimple_seq *, location_t,
  95                           enum built_in_function, tree, tree, tree);
  96 inline tree
  97 gimple_build (gimple_seq *seq,
  98               enum built_in_function fn, tree type, tree arg0, tree arg1)
  99 {
 100   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
 101 }
 102 extern tree gimple_build (gimple_seq *, location_t,
 103                           enum built_in_function, tree, tree, tree, tree);
 104 inline tree
 105 gimple_build (gimple_seq *seq,
 106               enum built_in_function fn, tree type,
 107               tree arg0, tree arg1, tree arg2)
 108 {
 109   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1, arg2);
 110 }
 111
 112 extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
 113 inline tree
 114 gimple_convert (gimple_seq *seq, tree type, tree op)
 115 {
 116   return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
 117 }
 118
 119 extern tree gimple_convert_to_ptrofftype (gimple_seq *, location_t, tree);
 120 inline tree
 121 gimple_convert_to_ptrofftype (gimple_seq *seq, tree op)
 122 {
 123   return gimple_convert_to_ptrofftype (seq, UNKNOWN_LOCATION, op);
 124 }
 125
 126 extern bool gimple_stmt_nonnegative_warnv_p (gimple *, bool *, int = 0);
 127 extern bool gimple_stmt_integer_valued_real_p (gimple *, int = 0);
 128
 129 /* In gimple-match.c.  */
 130 extern tree gimple_simplify (enum tree_code, tree, tree,
 131                              gimple_seq *, tree (*)(tree));
 132 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
 133                              gimple_seq *, tree (*)(tree));
 134 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
 135                              gimple_seq *, tree (*)(tree));
 136 extern tree gimple_simplify (enum built_in_function, tree, tree,
 137                              gimple_seq *, tree (*)(tree));
 138 extern tree gimple_simplify (enum built_in_function, tree, tree, tree,
 139                              gimple_seq *, tree (*)(tree));
 140 extern tree gimple_simplify (enum built_in_function, tree, tree, tree, tree,
 141                              gimple_seq *, tree (*)(tree));
 142
 143 #endif  /* GCC_GIMPLE_FOLD_H */