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