| 1 | //===-- crc32_hw.cpp --------------------------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "checksum.h" |
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| 10 | |
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| 11 | namespace scudo { |
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| 12 | |
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| 13 | #if defined(__CRC32__) || defined(__SSE4_2__) || defined(__ARM_FEATURE_CRC32) |
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| 14 | u32 computeHardwareCRC32(u32 Crc, uptr Data) { |
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| 15 | return static_cast<u32>(CRC32_INTRINSIC(Crc, Data)); |
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| 16 | } |
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| 17 | #endif // defined(__CRC32__) || defined(__SSE4_2__) || |
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| 18 | // defined(__ARM_FEATURE_CRC32) |
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| 19 | |
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| 20 | #if defined(__loongarch__) |
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| 21 | u32 computeHardwareCRC32(u32 Crc, uptr Data) { |
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| 22 | // The LoongArch CRC intrinsics have the two input arguments swapped, and |
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| 23 | // expect them to be signed. |
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| 24 | return static_cast<u32>( |
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| 25 | CRC32_INTRINSIC(static_cast<long>(Data), static_cast<int>(Crc))); |
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| 26 | } |
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| 27 | #endif // defined(__loongarch__) |
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| 28 | |
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| 29 | } // namespace scudo |
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| 30 | |
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