| 1 | /* A class for building vector tree constants. |
|---|---|
| 2 | Copyright (C) 2017-2023 Free Software Foundation, Inc. |
| 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 | cst: wi::to_wide (t: 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 (x: npatterns ()), nelts_per_pattern ()); |
| 45 | TREE_TYPE (v) = m_type; |
| 46 | memcpy (VECTOR_CST_ENCODED_ELTS (v), src: address (), |
| 47 | n: encoded_nelts () * sizeof (tree)); |
| 48 | return v; |
| 49 | } |
| 50 |