| //===-- crc32_hw.cpp --------------------------------------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "checksum.h" |
| |
| namespace scudo { |
| |
| #if defined(__CRC32__) || defined(__SSE4_2__) || defined(__ARM_FEATURE_CRC32) |
| u32 computeHardwareCRC32(u32 Crc, uptr Data) { |
| return static_cast<u32>(CRC32_INTRINSIC(Crc, Data)); |
| } |
| #endif // defined(__CRC32__) || defined(__SSE4_2__) || |
| // defined(__ARM_FEATURE_CRC32) |
| |
| #if defined(__loongarch__) |
| u32 computeHardwareCRC32(u32 Crc, uptr Data) { |
| // The LoongArch CRC intrinsics have the two input arguments swapped, and |
| // expect them to be signed. |
| return static_cast<u32>( |
| CRC32_INTRINSIC(static_cast<long>(Data), static_cast<int>(Crc))); |
| } |
| #endif // defined(__loongarch__) |
| |
| } // namespace scudo |
