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