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https://gitee.com/openharmony/arkcompiler_runtime_core
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2aaf2bd93a
Fix codeCheck warnings. Issue: I66P94 Signed-off-by: songqi <songqi32@huawei.com> Change-Id: I93ebb2dfba07c5918247750c50034b98c599b96c
95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
/**
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* Copyright (c) 2021-2022 Huawei Device Co., Ltd.
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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*/
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#ifndef LIBPANDAFILE_BYTECODE_INSTRUCTION_INL_H
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#define LIBPANDAFILE_BYTECODE_INSTRUCTION_INL_H
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#include "bytecode_instruction.h"
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#include "macros.h"
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namespace panda {
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template <const BytecodeInstMode Mode>
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template <class R, class S>
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inline auto BytecodeInst<Mode>::ReadHelper(size_t byteoffset, size_t bytecount, size_t offset, size_t width) const
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{
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constexpr size_t BYTE_WIDTH = 8;
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size_t right_shift = offset % BYTE_WIDTH;
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S v = 0;
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for (size_t i = 0; i < bytecount; i++) {
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S mask = static_cast<S>(ReadByte(byteoffset + i)) << (i * BYTE_WIDTH);
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v |= mask;
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}
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v >>= right_shift;
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size_t left_shift = sizeof(R) * BYTE_WIDTH - width;
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// Do sign extension using arithmetic shift. It's implementation defined
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// so we check such behavior using static assert
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// NOLINTNEXTLINE(hicpp-signed-bitwise)
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static_assert((-1 >> 1) == -1);
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// NOLINTNEXTLINE(hicpp-signed-bitwise)
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return static_cast<R>(v << left_shift) >> left_shift;
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}
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template <const BytecodeInstMode Mode>
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template <size_t offset, size_t width, bool is_signed /* = false */>
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inline auto BytecodeInst<Mode>::Read() const
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{
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constexpr size_t BYTE_WIDTH = 8;
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constexpr size_t BYTE_OFFSET = offset / BYTE_WIDTH;
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constexpr size_t BYTE_OFFSET_END = (offset + width + BYTE_WIDTH - 1) / BYTE_WIDTH;
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constexpr size_t BYTE_COUNT = BYTE_OFFSET_END - BYTE_OFFSET;
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using storage_type = helpers::TypeHelperT<BYTE_COUNT * BYTE_WIDTH, false>;
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using return_type = helpers::TypeHelperT<width, is_signed>;
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return ReadHelper<return_type, storage_type>(BYTE_OFFSET, BYTE_COUNT, offset, width);
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}
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template <const BytecodeInstMode Mode>
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template <bool is_signed /* = false */>
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inline auto BytecodeInst<Mode>::Read64(size_t offset, size_t width) const
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{
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constexpr size_t BIT64 = 64;
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constexpr size_t BYTE_WIDTH = 8;
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ASSERT((offset % BYTE_WIDTH) + width <= BIT64);
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size_t byteoffset = offset / BYTE_WIDTH;
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size_t byteoffset_end = (offset + width + BYTE_WIDTH - 1) / BYTE_WIDTH;
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size_t bytecount = byteoffset_end - byteoffset;
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using storage_type = helpers::TypeHelperT<BIT64, false>;
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using return_type = helpers::TypeHelperT<BIT64, is_signed>;
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return ReadHelper<return_type, storage_type>(byteoffset, bytecount, offset, width);
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}
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template <const BytecodeInstMode Mode>
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inline size_t BytecodeInst<Mode>::GetSize() const
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{
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return Size(GetFormat());
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}
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#include <bytecode_instruction-inl_gen.h>
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} // namespace panda
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#endif // LIBPANDAFILE_BYTECODE_INSTRUCTION_INL_H
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