1 /* Gimple folding definitions.
2
3 Copyright (C) 2011-2021 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 struct c_strlen_data;
29 extern bool get_range_strlen (tree, c_strlen_data *, unsigned eltsize);
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 (tree, enum tree_code, tree, tree,
35 enum tree_code, tree, tree);
36 extern tree maybe_fold_or_comparisons (tree, enum tree_code, tree, tree,
37 enum tree_code, tree, tree);
38 extern void clear_type_padding_in_mask (tree, unsigned char *);
39 extern bool optimize_atomic_compare_exchange_p (gimple *);
40 extern void fold_builtin_atomic_compare_exchange (gimple_stmt_iterator *);
41 extern bool arith_overflowed_p (enum tree_code, const_tree, const_tree,
42 const_tree);
43 extern tree no_follow_ssa_edges (tree);
44 extern tree follow_single_use_edges (tree);
45 extern tree follow_all_ssa_edges (tree);
46 extern tree gimple_fold_stmt_to_constant_1 (gimple *, tree (*) (tree),
47 tree (*) (tree) = no_follow_ssa_edges);
48 extern tree gimple_fold_stmt_to_constant (gimple *, tree (*) (tree));
49 extern tree fold_ctor_reference (tree, tree, const poly_uint64&,
50 const poly_uint64&, tree,
51 unsigned HOST_WIDE_INT * = NULL);
52 extern tree fold_const_aggregate_ref_1 (tree, tree (*) (tree));
53 extern tree fold_const_aggregate_ref (tree);
54 extern tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree,
55 bool *can_refer = NULL);
56 extern tree gimple_get_virt_method_for_vtable (HOST_WIDE_INT, tree,
57 unsigned HOST_WIDE_INT,
58 bool *can_refer = NULL);
59 extern tree gimple_fold_indirect_ref (tree);
60 extern bool gimple_fold_builtin_sprintf (gimple_stmt_iterator *);
61 extern bool gimple_fold_builtin_snprintf (gimple_stmt_iterator *);
62 extern bool arith_code_with_undefined_signed_overflow (tree_code);
63 extern gimple_seq rewrite_to_defined_overflow (gimple *);
64 extern void replace_call_with_value (gimple_stmt_iterator *, tree);
65 extern tree tree_vec_extract (gimple_stmt_iterator *, tree, tree, tree, tree);
66
67 /* gimple_build, functionally matching fold_buildN, outputs stmts
68 int the provided sequence, matching and simplifying them on-the-fly.
69 Supposed to replace force_gimple_operand (fold_buildN (...), ...). */
70 extern tree gimple_build (gimple_seq *, location_t,
71 enum tree_code, tree, tree);
72 inline tree
gimple_build(gimple_seq * seq,enum tree_code code,tree type,tree op0)73 gimple_build (gimple_seq *seq,
74 enum tree_code code, tree type, tree op0)
75 {
76 return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0);
77 }
78 extern tree gimple_build (gimple_seq *, location_t,
79 enum tree_code, tree, tree, tree);
80 inline tree
gimple_build(gimple_seq * seq,enum tree_code code,tree type,tree op0,tree op1)81 gimple_build (gimple_seq *seq,
82 enum tree_code code, tree type, tree op0, tree op1)
83 {
84 return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
85 }
86 extern tree gimple_build (gimple_seq *, location_t,
87 enum tree_code, tree, tree, tree, tree);
88 inline tree
gimple_build(gimple_seq * seq,enum tree_code code,tree type,tree op0,tree op1,tree op2)89 gimple_build (gimple_seq *seq,
90 enum tree_code code, tree type, tree op0, tree op1, tree op2)
91 {
92 return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
93 }
94 extern tree gimple_build (gimple_seq *, location_t, combined_fn, tree);
95 inline tree
gimple_build(gimple_seq * seq,combined_fn fn,tree type)96 gimple_build (gimple_seq *seq, combined_fn fn, tree type)
97 {
98 return gimple_build (seq, UNKNOWN_LOCATION, fn, type);
99 }
100 extern tree gimple_build (gimple_seq *, location_t, combined_fn, tree, tree);
101 inline tree
gimple_build(gimple_seq * seq,combined_fn fn,tree type,tree arg0)102 gimple_build (gimple_seq *seq, combined_fn fn, tree type, tree arg0)
103 {
104 return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
105 }
106 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
107 tree, tree, tree);
108 inline tree
gimple_build(gimple_seq * seq,combined_fn fn,tree type,tree arg0,tree arg1)109 gimple_build (gimple_seq *seq, combined_fn fn,
110 tree type, tree arg0, tree arg1)
111 {
112 return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
113 }
114 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
115 tree, tree, tree, tree);
116 inline tree
gimple_build(gimple_seq * seq,combined_fn fn,tree type,tree arg0,tree arg1,tree arg2)117 gimple_build (gimple_seq *seq, combined_fn fn,
118 tree type, tree arg0, tree arg1, tree arg2)
119 {
120 return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1, arg2);
121 }
122
123 extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
124 inline tree
gimple_convert(gimple_seq * seq,tree type,tree op)125 gimple_convert (gimple_seq *seq, tree type, tree op)
126 {
127 return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
128 }
129
130 extern tree gimple_convert_to_ptrofftype (gimple_seq *, location_t, tree);
131 inline tree
gimple_convert_to_ptrofftype(gimple_seq * seq,tree op)132 gimple_convert_to_ptrofftype (gimple_seq *seq, tree op)
133 {
134 return gimple_convert_to_ptrofftype (seq, UNKNOWN_LOCATION, op);
135 }
136
137 extern tree gimple_build_vector_from_val (gimple_seq *, location_t, tree,
138 tree);
139 inline tree
gimple_build_vector_from_val(gimple_seq * seq,tree type,tree op)140 gimple_build_vector_from_val (gimple_seq *seq, tree type, tree op)
141 {
142 return gimple_build_vector_from_val (seq, UNKNOWN_LOCATION, type, op);
143 }
144
145 class tree_vector_builder;
146 extern tree gimple_build_vector (gimple_seq *, location_t,
147 tree_vector_builder *);
148 inline tree
gimple_build_vector(gimple_seq * seq,tree_vector_builder * builder)149 gimple_build_vector (gimple_seq *seq, tree_vector_builder *builder)
150 {
151 return gimple_build_vector (seq, UNKNOWN_LOCATION, builder);
152 }
153
154 extern tree gimple_build_round_up (gimple_seq *, location_t, tree, tree,
155 unsigned HOST_WIDE_INT);
156 inline tree
gimple_build_round_up(gimple_seq * seq,tree type,tree old_size,unsigned HOST_WIDE_INT align)157 gimple_build_round_up (gimple_seq *seq, tree type, tree old_size,
158 unsigned HOST_WIDE_INT align)
159 {
160 return gimple_build_round_up (seq, UNKNOWN_LOCATION, type, old_size, align);
161 }
162
163 extern bool gimple_stmt_nonnegative_warnv_p (gimple *, bool *, int = 0);
164 extern bool gimple_stmt_integer_valued_real_p (gimple *, int = 0);
165
166 /* In gimple-match.c. */
167 extern tree gimple_simplify (enum tree_code, tree, tree,
168 gimple_seq *, tree (*)(tree));
169 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
170 gimple_seq *, tree (*)(tree));
171 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
172 gimple_seq *, tree (*)(tree));
173 extern tree gimple_simplify (combined_fn, tree, tree,
174 gimple_seq *, tree (*)(tree));
175 extern tree gimple_simplify (combined_fn, tree, tree, tree,
176 gimple_seq *, tree (*)(tree));
177 extern tree gimple_simplify (combined_fn, tree, tree, tree, tree,
178 gimple_seq *, tree (*)(tree));
179
180 #endif /* GCC_GIMPLE_FOLD_H */
181