gcc/gimple-fold.h

   1 /* Gimple folding definitions.
   2
   3    Copyright (C) 2011-2018 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], bool = false);
  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 follow_all_ssa_edges (tree);
  45 extern tree gimple_fold_stmt_to_constant_1 (gimple *, tree (*) (tree),
  46                                             tree (*) (tree) = no_follow_ssa_edges);
  47 extern tree gimple_fold_stmt_to_constant (gimple *, tree (*) (tree));
  48 extern tree fold_ctor_reference (tree, tree, poly_uint64, poly_uint64, 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 gimple_fold_builtin_sprintf (gimple_stmt_iterator *);
  58 extern bool gimple_fold_builtin_snprintf (gimple_stmt_iterator *);
  59 extern bool arith_code_with_undefined_signed_overflow (tree_code);
  60 extern gimple_seq rewrite_to_defined_overflow (gimple *);
  61 extern void replace_call_with_value (gimple_stmt_iterator *, tree);
  62
  63 /* gimple_build, functionally matching fold_buildN, outputs stmts
  64    int the provided sequence, matching and simplifying them on-the-fly.
  65    Supposed to replace force_gimple_operand (fold_buildN (...), ...).  */
  66 extern tree gimple_build (gimple_seq *, location_t,
  67                           enum tree_code, tree, tree);
  68 inline tree
  69 gimple_build (gimple_seq *seq,
  70               enum tree_code code, tree type, tree op0)
  71 {
  72   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0);
  73 }
  74 extern tree gimple_build (gimple_seq *, location_t,
  75                           enum tree_code, tree, tree, tree);
  76 inline tree
  77 gimple_build (gimple_seq *seq,
  78               enum tree_code code, tree type, tree op0, tree op1)
  79 {
  80   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
  81 }
  82 extern tree gimple_build (gimple_seq *, location_t,
  83                           enum tree_code, tree, tree, tree, tree);
  84 inline tree
  85 gimple_build (gimple_seq *seq,
  86               enum tree_code code, tree type, tree op0, tree op1, tree op2)
  87 {
  88   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
  89 }
  90 extern tree gimple_build (gimple_seq *, location_t, combined_fn, tree, tree);
  91 inline tree
  92 gimple_build (gimple_seq *seq, combined_fn fn, tree type, tree arg0)
  93 {
  94   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
  95 }
  96 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
  97                           tree, tree, tree);
  98 inline tree
  99 gimple_build (gimple_seq *seq, combined_fn fn,
 100               tree type, tree arg0, tree arg1)
 101 {
 102   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
 103 }
 104 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
 105                           tree, tree, tree, tree);
 106 inline tree
 107 gimple_build (gimple_seq *seq, combined_fn fn,
 108               tree type, 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 tree gimple_build_vector_from_val (gimple_seq *, location_t, tree,
 128                                           tree);
 129 inline tree
 130 gimple_build_vector_from_val (gimple_seq *seq, tree type, tree op)
 131 {
 132   return gimple_build_vector_from_val (seq, UNKNOWN_LOCATION, type, op);
 133 }
 134
 135 class tree_vector_builder;
 136 extern tree gimple_build_vector (gimple_seq *, location_t,
 137                                  tree_vector_builder *);
 138 inline tree
 139 gimple_build_vector (gimple_seq *seq, tree_vector_builder *builder)
 140 {
 141   return gimple_build_vector (seq, UNKNOWN_LOCATION, builder);
 142 }
 143
 144 extern bool gimple_stmt_nonnegative_warnv_p (gimple *, bool *, int = 0);
 145 extern bool gimple_stmt_integer_valued_real_p (gimple *, int = 0);
 146
 147 /* In gimple-match.c.  */
 148 extern tree gimple_simplify (enum tree_code, tree, tree,
 149                              gimple_seq *, tree (*)(tree));
 150 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
 151                              gimple_seq *, tree (*)(tree));
 152 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
 153                              gimple_seq *, tree (*)(tree));
 154 extern tree gimple_simplify (combined_fn, tree, tree,
 155                              gimple_seq *, tree (*)(tree));
 156 extern tree gimple_simplify (combined_fn, tree, tree, tree,
 157                              gimple_seq *, tree (*)(tree));
 158 extern tree gimple_simplify (combined_fn, tree, tree, tree, tree,
 159                              gimple_seq *, tree (*)(tree));
 160
 161 #endif  /* GCC_GIMPLE_FOLD_H */