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 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_ctor_reference (tree, tree, unsigned HOST_WIDE_INT,
  43                                  unsigned HOST_WIDE_INT, tree);
  44 extern tree fold_const_aggregate_ref_1 (tree, tree (*) (tree));
  45 extern tree fold_const_aggregate_ref (tree);
  46 extern tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree,
  47                                               bool *can_refer = NULL);
  48 extern tree gimple_get_virt_method_for_vtable (HOST_WIDE_INT, tree,
  49                                                unsigned HOST_WIDE_INT,
  50                                                bool *can_refer = NULL);
  51 extern tree gimple_fold_indirect_ref (tree);
  52 extern bool arith_code_with_undefined_signed_overflow (tree_code);
  53 extern gimple_seq rewrite_to_defined_overflow (gimple *);
  54
  55 /* gimple_build, functionally matching fold_buildN, outputs stmts
  56    int the provided sequence, matching and simplifying them on-the-fly.
  57    Supposed to replace force_gimple_operand (fold_buildN (...), ...).  */
  58 extern tree gimple_build (gimple_seq *, location_t,
  59                           enum tree_code, tree, tree);
  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 inline tree
  69 gimple_build (gimple_seq *seq,
  70               enum tree_code code, tree type, tree op0, tree op1)
  71 {
  72   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
  73 }
  74 extern tree gimple_build (gimple_seq *, location_t,
  75                           enum tree_code, tree, tree, tree, tree);
  76 inline tree
  77 gimple_build (gimple_seq *seq,
  78               enum tree_code code, tree type, tree op0, tree op1, tree op2)
  79 {
  80   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
  81 }
  82 extern tree gimple_build (gimple_seq *, location_t,
  83                           enum built_in_function, tree, tree);
  84 inline tree
  85 gimple_build (gimple_seq *seq,
  86               enum built_in_function fn, tree type, tree arg0)
  87 {
  88   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
  89 }
  90 extern tree gimple_build (gimple_seq *, location_t,
  91                           enum built_in_function, tree, tree, tree);
  92 inline tree
  93 gimple_build (gimple_seq *seq,
  94               enum built_in_function fn, tree type, tree arg0, tree arg1)
  95 {
  96   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
  97 }
  98 extern tree gimple_build (gimple_seq *, location_t,
  99                           enum built_in_function, tree, tree, tree, tree);
 100 inline tree
 101 gimple_build (gimple_seq *seq,
 102               enum built_in_function fn, tree type,
 103               tree arg0, tree arg1, tree arg2)
 104 {
 105   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1, arg2);
 106 }
 107
 108 extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
 109 inline tree
 110 gimple_convert (gimple_seq *seq, tree type, tree op)
 111 {
 112   return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
 113 }
 114
 115 extern tree gimple_convert_to_ptrofftype (gimple_seq *, location_t, tree);
 116 inline tree
 117 gimple_convert_to_ptrofftype (gimple_seq *seq, tree op)
 118 {
 119   return gimple_convert_to_ptrofftype (seq, UNKNOWN_LOCATION, op);
 120 }
 121
 122 extern bool gimple_stmt_nonnegative_warnv_p (gimple *, bool *, int = 0);
 123 extern bool gimple_stmt_integer_valued_real_p (gimple *, int = 0);
 124
 125 /* In gimple-match.c.  */
 126 extern tree gimple_simplify (enum tree_code, tree, tree,
 127                              gimple_seq *, tree (*)(tree));
 128 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
 129                              gimple_seq *, tree (*)(tree));
 130 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
 131                              gimple_seq *, tree (*)(tree));
 132 extern tree gimple_simplify (enum built_in_function, tree, tree,
 133                              gimple_seq *, tree (*)(tree));
 134 extern tree gimple_simplify (enum built_in_function, tree, tree, tree,
 135                              gimple_seq *, tree (*)(tree));
 136 extern tree gimple_simplify (enum built_in_function, tree, tree, tree, tree,
 137                              gimple_seq *, tree (*)(tree));
 138
 139 #endif  /* GCC_GIMPLE_FOLD_H */