|
131
|
1 /* A class for building vector tree constants.
|
|
145
|
2 Copyright (C) 2017-2020 Free Software Foundation, Inc.
|
|
131
|
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
|
|
|
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
|
|
|
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 }
|
