gcc/gimple-fold.h

   1 /* Gimple folding definitions.
   2
   3    Copyright (C) 2011-2014 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 gimplify_and_update_call_from_tree (gimple_stmt_iterator *, tree);
  28 extern bool fold_stmt (gimple_stmt_iterator *);
  29 extern bool fold_stmt (gimple_stmt_iterator *, tree (*) (tree));
  30 extern bool fold_stmt_inplace (gimple_stmt_iterator *);
  31 extern tree maybe_fold_and_comparisons (enum tree_code, tree, tree,
  32                                         enum tree_code, tree, tree);
  33 extern tree maybe_fold_or_comparisons (enum tree_code, tree, tree,
  34                                        enum tree_code, tree, tree);
  35 extern bool arith_overflowed_p (enum tree_code, const_tree, const_tree,
  36                                 const_tree);
  37 extern tree no_follow_ssa_edges (tree);
  38 extern tree follow_single_use_edges (tree);
  39 extern tree gimple_fold_stmt_to_constant_1 (gimple, tree (*) (tree),
  40                                             tree (*) (tree) = no_follow_ssa_edges);
  41 extern tree gimple_fold_stmt_to_constant (gimple, tree (*) (tree));
  42 extern tree fold_const_aggregate_ref_1 (tree, tree (*) (tree));
  43 extern tree fold_const_aggregate_ref (tree);
  44 extern tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree,
  45                                               bool *can_refer = NULL);
  46 extern tree gimple_get_virt_method_for_vtable (HOST_WIDE_INT, tree,
  47                                                unsigned HOST_WIDE_INT,
  48                                                bool *can_refer = NULL);
  49 extern bool gimple_val_nonnegative_real_p (tree);
  50 extern tree gimple_fold_indirect_ref (tree);
  51 extern bool arith_code_with_undefined_signed_overflow (tree_code);
  52 extern gimple_seq rewrite_to_defined_overflow (gimple);
  53
  54 /* gimple_build, functionally matching fold_buildN, outputs stmts
  55    int the provided sequence, matching and simplifying them on-the-fly.
  56    Supposed to replace force_gimple_operand (fold_buildN (...), ...).  */
  57 extern tree gimple_build (gimple_seq *, location_t,
  58                           enum tree_code, tree, tree,
  59                           tree (*valueize) (tree) = NULL);
  60 inline tree
  61 gimple_build (gimple_seq *seq,
  62               enum tree_code code, tree type, tree op0)
  63 {
  64   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0);
  65 }
  66 extern tree gimple_build (gimple_seq *, location_t,
  67                           enum tree_code, tree, tree, tree,
  68                           tree (*valueize) (tree) = NULL);
  69 inline tree
  70 gimple_build (gimple_seq *seq,
  71               enum tree_code code, tree type, tree op0, tree op1)
  72 {
  73   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
  74 }
  75 extern tree gimple_build (gimple_seq *, location_t,
  76                           enum tree_code, tree, tree, tree, tree,
  77                           tree (*valueize) (tree) = NULL);
  78 inline tree
  79 gimple_build (gimple_seq *seq,
  80               enum tree_code code, tree type, tree op0, tree op1, tree op2)
  81 {
  82   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
  83 }
  84 extern tree gimple_build (gimple_seq *, location_t,
  85                           enum built_in_function, tree, tree,
  86                           tree (*valueize) (tree) = NULL);
  87 inline tree
  88 gimple_build (gimple_seq *seq,
  89               enum built_in_function fn, tree type, tree arg0)
  90 {
  91   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
  92 }
  93 extern tree gimple_build (gimple_seq *, location_t,
  94                           enum built_in_function, tree, tree, tree,
  95                           tree (*valueize) (tree) = NULL);
  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                           tree (*valueize) (tree) = NULL);
 105 inline tree
 106 gimple_build (gimple_seq *seq,
 107               enum built_in_function fn, tree type,
 108               tree arg0, tree arg1, tree arg2)
 109 {
 110   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1, arg2);
 111 }
 112
 113 extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
 114 inline tree
 115 gimple_convert (gimple_seq *seq, tree type, tree op)
 116 {
 117   return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
 118 }
 119
 120 /* In gimple-match.c.  */
 121 extern tree gimple_simplify (enum tree_code, tree, tree,
 122                              gimple_seq *, tree (*)(tree));
 123 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
 124                              gimple_seq *, tree (*)(tree));
 125 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
 126                              gimple_seq *, tree (*)(tree));
 127 extern tree gimple_simplify (enum built_in_function, tree, tree,
 128                              gimple_seq *, tree (*)(tree));
 129 extern tree gimple_simplify (enum built_in_function, tree, tree, tree,
 130                              gimple_seq *, tree (*)(tree));
 131 extern tree gimple_simplify (enum built_in_function, tree, tree, tree, tree,
 132                              gimple_seq *, tree (*)(tree));
 133
 134 #endif  /* GCC_GIMPLE_FOLD_H */