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/* function_base implementation for RISC-V 'V' Extension for GNU compiler.
Copyright (C) 2022-2022 Free Software Foundation, Inc.
Contributed by Ju-Zhe Zhong (juzhe.zhong@rivai.ai), RiVAI Technologies Ltd.
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 "tm.h"
#include "tree.h"
#include "rtl.h"
#include "tm_p.h"
#include "memmodel.h"
#include "insn-codes.h"
#include "optabs.h"
#include "recog.h"
#include "expr.h"
#include "basic-block.h"
#include "function.h"
#include "fold-const.h"
#include "gimple.h"
#include "gimple-iterator.h"
#include "gimplify.h"
#include "explow.h"
#include "emit-rtl.h"
#include "tree-vector-builder.h"
#include "rtx-vector-builder.h"
#include "riscv-vector-builtins.h"
#include "riscv-vector-builtins-shapes.h"
#include "riscv-vector-builtins-bases.h"
using namespace riscv_vector;
namespace riscv_vector {
/* Implements vsetvl<mode> && vsetvlmax<mode>. */
template<bool VLMAX_P>
class vsetvl : public function_base
{
public:
rtx expand (function_expander &e) const override
{
if (VLMAX_P)
e.add_input_operand (Pmode, gen_rtx_REG (Pmode, 0));
else
e.add_input_operand (0);
tree type = builtin_types[e.type.index].vector;
machine_mode mode = TYPE_MODE (type);
machine_mode inner_mode = GET_MODE_INNER (mode);
/* SEW. */
e.add_input_operand (Pmode,
gen_int_mode (GET_MODE_BITSIZE (inner_mode), Pmode));
/* LMUL. */
e.add_input_operand (Pmode, gen_int_mode (get_vlmul (mode), Pmode));
/* TA. */
e.add_input_operand (Pmode, gen_int_mode (1, Pmode));
/* MU. */
e.add_input_operand (Pmode, gen_int_mode (0, Pmode));
return e.generate_insn (code_for_vsetvl (Pmode));
}
};
static CONSTEXPR const vsetvl<false> vsetvl_obj;
static CONSTEXPR const vsetvl<true> vsetvlmax_obj;
namespace bases {
const function_base *const vsetvl = &vsetvl_obj;
const function_base *const vsetvlmax = &vsetvlmax_obj;
}
} // end namespace riscv_vector
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