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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "checksum.h" 10 11 namespace scudo { 12 13 #if defined(__CRC32__) || defined(__SSE4_2__) || defined(__ARM_FEATURE_CRC32) 14 u32 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__) 21 u32 computeHardwareCRC32(u32 Crc, uptr Data) { 22 // The LoongArch CRC intrinsics have the two input arguments swapped, and 23 // 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 scudo 30