91 lines
2.6 KiB
91 lines
2.6 KiB
/* Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#include "paddle/fluid/operators/math/jit_gen.h"
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#include <fstream>
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#include <iostream>
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#include <sstream>
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#include "paddle/fluid/platform/cpu_info.h"
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DEFINE_bool(dump_jitcode, false, "Whether to dump the jitcode to file");
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namespace paddle {
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namespace operators {
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namespace math {
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namespace jitkernel {
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namespace gen {
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constexpr Xbyak::Operand::Code g_abi_regs[] = {
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Xbyak::Operand::RBX, Xbyak::Operand::RBP, Xbyak::Operand::R12,
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Xbyak::Operand::R13, Xbyak::Operand::R14, Xbyak::Operand::R15};
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constexpr int num_g_abi_regs = sizeof(g_abi_regs) / sizeof(g_abi_regs[0]);
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void JitCode::preCode() {
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for (int i = 0; i < num_g_abi_regs; ++i) {
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push(Xbyak::Reg64(g_abi_regs[i]));
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}
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if (platform::jit::MayIUse(platform::jit::avx512f)) {
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mov(reg_EVEX_max_8b_offt, 2 * EVEX_max_8b_offt);
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}
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}
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void JitCode::postCode() {
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for (int i = 0; i < num_g_abi_regs; ++i) {
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pop(Xbyak::Reg64(g_abi_regs[num_g_abi_regs - 1 - i]));
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}
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ret();
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}
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void JitCode::dumpCode(const Xbyak::uint8 *code) const {
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if (code) {
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static int counter = 0;
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std::ostringstream filename;
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filename << "paddle_jitcode_" << name() << "." << counter << ".bin";
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counter++;
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std::ofstream fout(filename.str(), std::ios::out);
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if (fout.is_open()) {
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fout.write(reinterpret_cast<const char *>(code), getSize());
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fout.close();
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}
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}
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}
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Xbyak::Address JitCode::EVEX_compress_addr(Xbyak::Reg64 base, int offt,
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bool bcast) {
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int scale = 0;
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if (EVEX_max_8b_offt <= offt && offt < 3 * EVEX_max_8b_offt) {
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offt = offt - 2 * EVEX_max_8b_offt;
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scale = 1;
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} else if (3 * EVEX_max_8b_offt <= offt && offt < 5 * EVEX_max_8b_offt) {
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offt = offt - 4 * EVEX_max_8b_offt;
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scale = 2;
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}
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auto re = Xbyak::RegExp() + base + offt;
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if (scale) {
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re = re + reg_EVEX_max_8b_offt * scale;
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}
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if (bcast) {
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return zword_b[re];
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} else {
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return zword[re];
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}
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}
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} // namespace gen
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} // namespace jitkernel
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} // namespace math
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} // namespace operators
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} // namespace paddle
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