gimple-fold.h revision 1.4 
1/* Gimple folding definitions.
2
3   Copyright (C) 2011-2016 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 tree gimple_fold_indirect_ref (tree);
52extern bool arith_code_with_undefined_signed_overflow (tree_code);
53extern 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 (...), ...).  */
58extern tree gimple_build (gimple_seq *, location_t,
59			  enum tree_code, tree, tree);
60inline tree
61gimple_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}
66extern tree gimple_build (gimple_seq *, location_t,
67			  enum tree_code, tree, tree, tree);
68inline tree
69gimple_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}
74extern tree gimple_build (gimple_seq *, location_t,
75			  enum tree_code, tree, tree, tree, tree);
76inline tree
77gimple_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}
82extern tree gimple_build (gimple_seq *, location_t,
83			  enum built_in_function, tree, tree);
84inline tree
85gimple_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}
90extern tree gimple_build (gimple_seq *, location_t,
91			  enum built_in_function, tree, tree, tree);
92inline tree
93gimple_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}
98extern tree gimple_build (gimple_seq *, location_t,
99			  enum built_in_function, tree, tree, tree, tree);
100inline tree
101gimple_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
108extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
109inline tree
110gimple_convert (gimple_seq *seq, tree type, tree op)
111{
112  return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
113}
114
115extern tree gimple_convert_to_ptrofftype (gimple_seq *, location_t, tree);
116inline tree
117gimple_convert_to_ptrofftype (gimple_seq *seq, tree op)
118{
119  return gimple_convert_to_ptrofftype (seq, UNKNOWN_LOCATION, op);
120}
121
122extern bool gimple_stmt_nonnegative_warnv_p (gimple *, bool *, int = 0);
123extern bool gimple_stmt_integer_valued_real_p (gimple *, int = 0);
124
125/* In gimple-match.c.  */
126extern tree gimple_simplify (enum tree_code, tree, tree,
127			     gimple_seq *, tree (*)(tree));
128extern tree gimple_simplify (enum tree_code, tree, tree, tree,
129			     gimple_seq *, tree (*)(tree));
130extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
131			     gimple_seq *, tree (*)(tree));
132extern tree gimple_simplify (enum built_in_function, tree, tree,
133			     gimple_seq *, tree (*)(tree));
134extern tree gimple_simplify (enum built_in_function, tree, tree, tree,
135			     gimple_seq *, tree (*)(tree));
136extern tree gimple_simplify (enum built_in_function, tree, tree, tree, tree,
137			     gimple_seq *, tree (*)(tree));
138
139#endif  /* GCC_GIMPLE_FOLD_H */
140