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/* A class for building vector tree constants.
Copyright (C) 2017-2022 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tree.h"
#include "fold-const.h"
#include "tree-vector-builder.h"
/* Return a vector element with the value BASE + FACTOR * STEP. */
tree
tree_vector_builder::apply_step (tree base, unsigned int factor,
const wide_int &step) const
{
return wide_int_to_tree (TREE_TYPE (base),
wi::to_wide (base) + factor * step);
}
/* Return a VECTOR_CST for the current constant. */
tree
tree_vector_builder::build ()
{
finalize ();
gcc_assert (pow2p_hwi (npatterns ()));
tree v = make_vector (exact_log2 (npatterns ()), nelts_per_pattern ());
TREE_TYPE (v) = m_type;
memcpy (VECTOR_CST_ENCODED_ELTS (v), address (),
encoded_nelts () * sizeof (tree));
return v;
}
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