1 /* Gimple folding definitions.
2
3 Copyright (C) 2011-2020 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 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, const poly_uint64&,
49 const poly_uint64&, tree,
50 unsigned HOST_WIDE_INT * = NULL);
51 extern tree fold_const_aggregate_ref_1 (tree, tree (*) (tree));
52 extern tree fold_const_aggregate_ref (tree);
53 extern tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree,
54 bool *can_refer = NULL);
55 extern tree gimple_get_virt_method_for_vtable (HOST_WIDE_INT, tree,
56 unsigned HOST_WIDE_INT,
57 bool *can_refer = NULL);
58 extern tree gimple_fold_indirect_ref (tree);
59 extern bool gimple_fold_builtin_sprintf (gimple_stmt_iterator *);
60 extern bool gimple_fold_builtin_snprintf (gimple_stmt_iterator *);
61 extern bool arith_code_with_undefined_signed_overflow (tree_code);
62 extern gimple_seq rewrite_to_defined_overflow (gimple *);
63 extern void replace_call_with_value (gimple_stmt_iterator *, tree);
64 extern tree tree_vec_extract (gimple_stmt_iterator *, tree, tree, tree, tree);
65
66 /* gimple_build, functionally matching fold_buildN, outputs stmts
67 int the provided sequence, matching and simplifying them on-the-fly.
68 Supposed to replace force_gimple_operand (fold_buildN (...), ...). */
69 extern tree gimple_build (gimple_seq *, location_t,
70 enum tree_code, tree, tree);
71 inline tree
gimple_build(gimple_seq * seq,enum tree_code code,tree type,tree op0)72 gimple_build (gimple_seq *seq,
73 enum tree_code code, tree type, tree op0)
74 {
75 return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0);
76 }
77 extern tree gimple_build (gimple_seq *, location_t,
78 enum tree_code, tree, tree, tree);
79 inline tree
gimple_build(gimple_seq * seq,enum tree_code code,tree type,tree op0,tree op1)80 gimple_build (gimple_seq *seq,
81 enum tree_code code, tree type, tree op0, tree op1)
82 {
83 return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
84 }
85 extern tree gimple_build (gimple_seq *, location_t,
86 enum tree_code, tree, tree, tree, tree);
87 inline tree
gimple_build(gimple_seq * seq,enum tree_code code,tree type,tree op0,tree op1,tree op2)88 gimple_build (gimple_seq *seq,
89 enum tree_code code, tree type, tree op0, tree op1, tree op2)
90 {
91 return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
92 }
93 extern tree gimple_build (gimple_seq *, location_t, combined_fn, tree, tree);
94 inline tree
gimple_build(gimple_seq * seq,combined_fn fn,tree type,tree arg0)95 gimple_build (gimple_seq *seq, combined_fn fn, tree type, tree arg0)
96 {
97 return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
98 }
99 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
100 tree, tree, tree);
101 inline tree
gimple_build(gimple_seq * seq,combined_fn fn,tree type,tree arg0,tree arg1)102 gimple_build (gimple_seq *seq, combined_fn fn,
103 tree type, tree arg0, tree arg1)
104 {
105 return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
106 }
107 extern tree gimple_build (gimple_seq *, location_t, combined_fn,
108 tree, tree, tree, tree);
109 inline tree
gimple_build(gimple_seq * seq,combined_fn fn,tree type,tree arg0,tree arg1,tree arg2)110 gimple_build (gimple_seq *seq, combined_fn fn,
111 tree type, tree arg0, tree arg1, tree arg2)
112 {
113 return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1, arg2);
114 }
115
116 extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
117 inline tree
gimple_convert(gimple_seq * seq,tree type,tree op)118 gimple_convert (gimple_seq *seq, tree type, tree op)
119 {
120 return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
121 }
122
123 extern tree gimple_convert_to_ptrofftype (gimple_seq *, location_t, tree);
124 inline tree
gimple_convert_to_ptrofftype(gimple_seq * seq,tree op)125 gimple_convert_to_ptrofftype (gimple_seq *seq, tree op)
126 {
127 return gimple_convert_to_ptrofftype (seq, UNKNOWN_LOCATION, op);
128 }
129
130 extern tree gimple_build_vector_from_val (gimple_seq *, location_t, tree,
131 tree);
132 inline tree
gimple_build_vector_from_val(gimple_seq * seq,tree type,tree op)133 gimple_build_vector_from_val (gimple_seq *seq, tree type, tree op)
134 {
135 return gimple_build_vector_from_val (seq, UNKNOWN_LOCATION, type, op);
136 }
137
138 class tree_vector_builder;
139 extern tree gimple_build_vector (gimple_seq *, location_t,
140 tree_vector_builder *);
141 inline tree
gimple_build_vector(gimple_seq * seq,tree_vector_builder * builder)142 gimple_build_vector (gimple_seq *seq, tree_vector_builder *builder)
143 {
144 return gimple_build_vector (seq, UNKNOWN_LOCATION, builder);
145 }
146
147 extern bool gimple_stmt_nonnegative_warnv_p (gimple *, bool *, int = 0);
148 extern bool gimple_stmt_integer_valued_real_p (gimple *, int = 0);
149
150 /* In gimple-match.c. */
151 extern tree gimple_simplify (enum tree_code, tree, tree,
152 gimple_seq *, tree (*)(tree));
153 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
154 gimple_seq *, tree (*)(tree));
155 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
156 gimple_seq *, tree (*)(tree));
157 extern tree gimple_simplify (combined_fn, tree, tree,
158 gimple_seq *, tree (*)(tree));
159 extern tree gimple_simplify (combined_fn, tree, tree, tree,
160 gimple_seq *, tree (*)(tree));
161 extern tree gimple_simplify (combined_fn, tree, tree, tree, tree,
162 gimple_seq *, tree (*)(tree));
163
164 #endif /* GCC_GIMPLE_FOLD_H */
165