30 lines · cpp
1//===-- crc32_hw.cpp --------------------------------------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "checksum.h"10 11namespace scudo {12 13#if defined(__CRC32__) || defined(__SSE4_2__) || defined(__ARM_FEATURE_CRC32)14u32 computeHardwareCRC32(u32 Crc, uptr Data) {15 return static_cast<u32>(CRC32_INTRINSIC(Crc, Data));16}17#endif // defined(__CRC32__) || defined(__SSE4_2__) ||18 // defined(__ARM_FEATURE_CRC32)19 20#if defined(__loongarch__)21u32 computeHardwareCRC32(u32 Crc, uptr Data) {22 // The LoongArch CRC intrinsics have the two input arguments swapped, and23 // expect them to be signed.24 return static_cast<u32>(25 CRC32_INTRINSIC(static_cast<long>(Data), static_cast<int>(Crc)));26}27#endif // defined(__loongarch__)28 29} // namespace scudo30