| /* 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: |
| unsigned int call_properties (const function_instance &) const |
| { |
| return CP_READ_CSR | CP_WRITE_CSR; |
| } |
| |
| 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 ((unsigned int) 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 |