gcc/gimple-fold.h

   1 /* Gimple folding definitions.
   2
   3    Copyright (C) 2011-2017 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]);
  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 gimple_fold_stmt_to_constant_1 (gimple *, tree (*) (tree),
  45                                             tree (*) (tree) = no_follow_ssa_edges);
  46 extern tree gimple_fold_stmt_to_constant (gimple *, tree (*) (tree));
  47 extern tree fold_ctor_reference (tree, tree, unsigned HOST_WIDE_INT,
  48                                  unsigned HOST_WIDE_INT, tree);
  49 extern tree fold_const_aggregate_ref_1 (tree, tree (*) (tree));
  50 extern tree fold_const_aggregate_ref (tree);
  51 extern tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree,
  52                                               bool *can_refer = NULL);
  53 extern tree gimple_get_virt_method_for_vtable (HOST_WIDE_INT, tree,
  54                                                unsigned HOST_WIDE_INT,
  55                                                bool *can_refer = NULL);
  56 extern tree gimple_fold_indirect_ref (tree);
  57 extern bool arith_code_with_undefined_signed_overflow (tree_code);
  58 extern gimple_seq rewrite_to_defined_overflow (gimple *);
  59
  60 /* gimple_build, functionally matching fold_buildN, outputs stmts
  61    int the provided sequence, matching and simplifying them on-the-fly.
  62    Supposed to replace force_gimple_operand (fold_buildN (...), ...).  */
  63 extern tree gimple_build (gimple_seq *, location_t,
  64                           enum tree_code, tree, tree);
  65 inline tree
  66 gimple_build (gimple_seq *seq,
  67               enum tree_code code, tree type, tree op0)
  68 {
  69   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0);
  70 }
  71 extern tree gimple_build (gimple_seq *, location_t,
  72                           enum tree_code, tree, tree, tree);
  73 inline tree
  74 gimple_build (gimple_seq *seq,
  75               enum tree_code code, tree type, tree op0, tree op1)
  76 {
  77   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
  78 }
  79 extern tree gimple_build (gimple_seq *, location_t,
  80                           enum tree_code, tree, tree, tree, tree);
  81 inline tree
  82 gimple_build (gimple_seq *seq,
  83               enum tree_code code, tree type, tree op0, tree op1, tree op2)
  84 {
  85   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
  86 }
  87 extern tree gimple_build (gimple_seq *, location_t,
  88                           enum built_in_function, tree, tree);
  89 inline tree
  90 gimple_build (gimple_seq *seq,
  91               enum built_in_function fn, tree type, tree arg0)
  92 {
  93   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
  94 }
  95 extern tree gimple_build (gimple_seq *, location_t,
  96                           enum built_in_function, tree, tree, tree);
  97 inline tree
  98 gimple_build (gimple_seq *seq,
  99               enum built_in_function fn, tree type, tree arg0, tree arg1)
 100 {
 101   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
 102 }
 103 extern tree gimple_build (gimple_seq *, location_t,
 104                           enum built_in_function, tree, tree, tree, tree);
 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 extern tree gimple_convert_to_ptrofftype (gimple_seq *, location_t, tree);
 121 inline tree
 122 gimple_convert_to_ptrofftype (gimple_seq *seq, tree op)
 123 {
 124   return gimple_convert_to_ptrofftype (seq, UNKNOWN_LOCATION, op);
 125 }
 126
 127 extern bool gimple_stmt_nonnegative_warnv_p (gimple *, bool *, int = 0);
 128 extern bool gimple_stmt_integer_valued_real_p (gimple *, int = 0);
 129
 130 /* In gimple-match.c.  */
 131 extern tree gimple_simplify (enum tree_code, tree, tree,
 132                              gimple_seq *, tree (*)(tree));
 133 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
 134                              gimple_seq *, tree (*)(tree));
 135 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
 136                              gimple_seq *, tree (*)(tree));
 137 extern tree gimple_simplify (enum built_in_function, tree, tree,
 138                              gimple_seq *, tree (*)(tree));
 139 extern tree gimple_simplify (enum built_in_function, tree, tree, tree,
 140                              gimple_seq *, tree (*)(tree));
 141 extern tree gimple_simplify (enum built_in_function, tree, tree, tree, tree,
 142                              gimple_seq *, tree (*)(tree));
 143
 144 #endif  /* GCC_GIMPLE_FOLD_H */