1/* Gimple folding definitions.
2
3   Copyright (C) 2011-2015 Free Software Foundation, Inc.
4   Contributed by Richard Guenther <rguenther@suse.de>
5
6This file is part of GCC.
7
8GCC is free software; you can redistribute it and/or modify it under
9the terms of the GNU General Public License as published by the Free
10Software Foundation; either version 3, or (at your option) any later
11version.
12
13GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14WARRANTY; without even the implied warranty of MERCHANTABILITY or
15FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
16for more details.
17
18You should have received a copy of the GNU General Public License
19along 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
25extern tree canonicalize_constructor_val (tree, tree);
26extern tree get_symbol_constant_value (tree);
27extern void gimplify_and_update_call_from_tree (gimple_stmt_iterator *, tree);
28extern bool fold_stmt (gimple_stmt_iterator *);
29extern bool fold_stmt (gimple_stmt_iterator *, tree (*) (tree));
30extern bool fold_stmt_inplace (gimple_stmt_iterator *);
31extern tree maybe_fold_and_comparisons (enum tree_code, tree, tree,
32					enum tree_code, tree, tree);
33extern tree maybe_fold_or_comparisons (enum tree_code, tree, tree,
34				       enum tree_code, tree, tree);
35extern bool arith_overflowed_p (enum tree_code, const_tree, const_tree,
36				const_tree);
37extern tree no_follow_ssa_edges (tree);
38extern tree follow_single_use_edges (tree);
39extern tree gimple_fold_stmt_to_constant_1 (gimple, tree (*) (tree),
40					    tree (*) (tree) = no_follow_ssa_edges);
41extern tree gimple_fold_stmt_to_constant (gimple, tree (*) (tree));
42extern tree fold_ctor_reference (tree, tree, unsigned HOST_WIDE_INT,
43				 unsigned HOST_WIDE_INT, tree);
44extern tree fold_const_aggregate_ref_1 (tree, tree (*) (tree));
45extern tree fold_const_aggregate_ref (tree);
46extern tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree,
47					      bool *can_refer = NULL);
48extern tree gimple_get_virt_method_for_vtable (HOST_WIDE_INT, tree,
49					       unsigned HOST_WIDE_INT,
50					       bool *can_refer = NULL);
51extern bool gimple_val_nonnegative_real_p (tree);
52extern tree gimple_fold_indirect_ref (tree);
53extern bool arith_code_with_undefined_signed_overflow (tree_code);
54extern gimple_seq rewrite_to_defined_overflow (gimple);
55
56/* gimple_build, functionally matching fold_buildN, outputs stmts
57   int the provided sequence, matching and simplifying them on-the-fly.
58   Supposed to replace force_gimple_operand (fold_buildN (...), ...).  */
59extern tree gimple_build (gimple_seq *, location_t,
60			  enum tree_code, tree, tree,
61			  tree (*valueize) (tree) = NULL);
62inline tree
63gimple_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}
68extern tree gimple_build (gimple_seq *, location_t,
69			  enum tree_code, tree, tree, tree,
70			  tree (*valueize) (tree) = NULL);
71inline tree
72gimple_build (gimple_seq *seq,
73	      enum tree_code code, tree type, tree op0, tree op1)
74{
75  return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
76}
77extern tree gimple_build (gimple_seq *, location_t,
78			  enum tree_code, tree, tree, tree, tree,
79			  tree (*valueize) (tree) = NULL);
80inline tree
81gimple_build (gimple_seq *seq,
82	      enum tree_code code, tree type, tree op0, tree op1, tree op2)
83{
84  return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
85}
86extern tree gimple_build (gimple_seq *, location_t,
87			  enum built_in_function, tree, tree,
88			  tree (*valueize) (tree) = NULL);
89inline tree
90gimple_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}
95extern tree gimple_build (gimple_seq *, location_t,
96			  enum built_in_function, tree, tree, tree,
97			  tree (*valueize) (tree) = NULL);
98inline tree
99gimple_build (gimple_seq *seq,
100	      enum built_in_function fn, tree type, tree arg0, tree arg1)
101{
102  return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
103}
104extern tree gimple_build (gimple_seq *, location_t,
105			  enum built_in_function, tree, tree, tree, tree,
106			  tree (*valueize) (tree) = NULL);
107inline tree
108gimple_build (gimple_seq *seq,
109	      enum built_in_function fn, tree type,
110	      tree arg0, tree arg1, tree arg2)
111{
112  return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1, arg2);
113}
114
115extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
116inline tree
117gimple_convert (gimple_seq *seq, tree type, tree op)
118{
119  return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
120}
121
122/* In gimple-match.c.  */
123extern tree gimple_simplify (enum tree_code, tree, tree,
124			     gimple_seq *, tree (*)(tree));
125extern tree gimple_simplify (enum tree_code, tree, tree, tree,
126			     gimple_seq *, tree (*)(tree));
127extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
128			     gimple_seq *, tree (*)(tree));
129extern tree gimple_simplify (enum built_in_function, tree, tree,
130			     gimple_seq *, tree (*)(tree));
131extern tree gimple_simplify (enum built_in_function, tree, tree, tree,
132			     gimple_seq *, tree (*)(tree));
133extern tree gimple_simplify (enum built_in_function, tree, tree, tree, tree,
134			     gimple_seq *, tree (*)(tree));
135
136#endif  /* GCC_GIMPLE_FOLD_H */
137