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734914b6 | 1 | /* A class for building vector tree constants. |
aeee4812 | 2 | Copyright (C) 2017-2023 Free Software Foundation, Inc. |
734914b6 RS |
3 | |
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify it under | |
7 | the terms of the GNU General Public License as published by the Free | |
8 | Software Foundation; either version 3, or (at your option) any later | |
9 | version. | |
10 | ||
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GCC; see the file COPYING3. If not see | |
18 | <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "config.h" | |
21 | #include "system.h" | |
22 | #include "coretypes.h" | |
23 | #include "tree.h" | |
24 | #include "fold-const.h" | |
25 | #include "tree-vector-builder.h" | |
26 | ||
abe73c3d RS |
27 | /* Return a vector element with the value BASE + FACTOR * STEP. */ |
28 | ||
29 | tree | |
30 | tree_vector_builder::apply_step (tree base, unsigned int factor, | |
31 | const wide_int &step) const | |
32 | { | |
33 | return wide_int_to_tree (TREE_TYPE (base), | |
34 | wi::to_wide (base) + factor * step); | |
35 | } | |
36 | ||
734914b6 RS |
37 | /* Return a VECTOR_CST for the current constant. */ |
38 | ||
39 | tree | |
40 | tree_vector_builder::build () | |
41 | { | |
42 | finalize (); | |
43 | gcc_assert (pow2p_hwi (npatterns ())); | |
44 | tree v = make_vector (exact_log2 (npatterns ()), nelts_per_pattern ()); | |
45 | TREE_TYPE (v) = m_type; | |
46 | memcpy (VECTOR_CST_ENCODED_ELTS (v), address (), | |
47 | encoded_nelts () * sizeof (tree)); | |
48 | return v; | |
49 | } |